Lift smoke machine

Abstract

The application belongs to the technical field of kitchen appliances, and particularly relates to a lifting range hood. The lifting range hood comprises a main box, a lifting box and a wiring structure. The lifting box is arranged below the main box and can be lifted relative to the main box. The wiring structure is arranged on the lifting box and is provided with a first positioning part for limiting a first part of a wire harness. The main box is provided with a second positioning part for limiting a second part of the wire harness. An active section is formed between the first part and the second part of the wire harness. When the lifting box moves relative to the main box, the first positioning part can be close to or away from the second positioning part. When the first positioning part is close to the second positioning part, at least part of the active section is bent. When the first positioning part is away from the second positioning part, at least part of the active section is stretched. The lifting range hood provided by the application can solve the problems of wire harness winding and excessive pulling and ensure normal operation of the lifting range hood.

Description

Technical Field

[0001] This application belongs to the field of kitchen appliance technology, specifically relating to a lift-up range hood. Background Technology

[0002] Lift-type range hoods have the ability to lift, and their core function is to adjust the air pressure at the smoke inlet by lifting, so as to flexibly adapt to different cooking conditions.

[0003] The inside of the lifting smoke machine is equipped with a wiring harness structure, which connects the various functional modules of the lifting smoke machine to realize signal transmission and power supply between the functional modules.

[0004] However, during the lifting and lowering process of the range hood, the wiring harness located in the connection area between the main box and the lifting box is prone to tangling and excessive pulling, which affects the normal operation of the lifting range hood. Utility Model Content

[0005] This application provides a lifting range hood to solve the problems of wire harness tangling and excessive pulling, and to ensure the normal operation of the lifting range hood.

[0006] This application provides a lifting range hood, including a main box, a lifting box, and a wiring structure; the main box is connected to the lifting box, the lifting box is disposed below the main box, and the lifting box can be raised and lowered relative to the main box;

[0007] The wiring structure is disposed in the lifting box, and the wiring structure is provided with a first positioning part, which is used to limit the first part of the wire harness.

[0008] The main box is provided with a second positioning part, which is used to limit the second part of the wire harness, and a movable segment is formed between the first part and the second part of the wire harness.

[0009] When the lifting box moves relative to the main box, the first positioning part can move closer to or further away from the second positioning part;

[0010] When the first positioning part approaches the second positioning part, at least a portion of the movable segment bends; when the first positioning part moves away from the second positioning part, at least a portion of the movable segment extends.

[0011] In one possible implementation, during the process of the lifting box moving from the first position to the second position, or from the second position to the first position:

[0012] The first positioning part first approaches the second positioning part, at least a portion of the movable segment bends, and then the first positioning part moves away from the second positioning part, at least a portion of the movable segment extends;

[0013] The first position is higher than the second position.

[0014] In one possible implementation, when the lifting box is in the first position, the first positioning part is higher than the second positioning part;

[0015] When the lifting box is in the second position, the second positioning part is higher than the first positioning part;

[0016] The first positioning part and the second positioning part are arranged at intervals along the horizontal direction.

[0017] In one possible implementation, the length of the active segment is greater than or equal to 1.2 times the maximum straight-line distance between the first positioning part and the second positioning part, and less than or equal to 2 times the maximum straight-line distance between the first positioning part and the second positioning part.

[0018] In one possible implementation, the wiring structure includes a junction box connected to the lifting box;

[0019] The lifting box is provided with a first back plate, the junction box and the first back plate are arranged to form a receiving cavity, and the movable section is disposed in the receiving cavity.

[0020] In one possible implementation, the first positioning part is a winding post protruding from the inner wall of the receiving cavity, and the axis of the winding post is perpendicular to the first back plate.

[0021] The first portion of the wire harness is wound around the top of the winding post.

[0022] In one possible implementation, the wiring structure is provided with a first limiting part, which protrudes from the inner wall of the receiving cavity;

[0023] When the second positioning part is higher than the first positioning part, at least a portion of the movable segment contacts the bottom of the first limiting part;

[0024] And / or, the wiring structure is provided with a second limiting part, which protrudes from the inner wall of the receiving cavity;

[0025] When the second positioning part is lower than the first positioning part, at least a portion of the movable segment contacts the side of the second limiting part closest to the second positioning part.

[0026] In one possible implementation, the lifting box is provided with a wiring component, which is located inside the first back plate and has a first inlet / outlet.

[0027] The main box is provided with a second back panel, the second back panel is provided with a wiring section, and the wiring section is provided with a second inlet and outlet;

[0028] The junction box is provided with a connecting part, which is connected to the wiring component. The junction box is also provided with a third inlet and a fourth inlet. The third inlet is connected to the first inlet and the fourth inlet is connected to the second inlet and the fourth inlet is connected to the second inlet and the third inlet is connected to the first inlet and the fourth inlet and the fourth inlet.

[0029] In one possible implementation, the wiring structure includes a cover plate detachably connected to the side of the junction box near the first back plate, the junction box and the cover plate forming the receiving cavity.

[0030] In one possible implementation, the second backplate is at least partially disposed inside the first backplate;

[0031] The cover plate has a raised rib on the side away from the junction box. When the lifting box moves relative to the main box, the raised rib slides in contact with the inner wall of the second back plate.

[0032] The lifting range hood provided in this application includes a main housing, a lifting housing, and a wiring structure. The lifting housing moves up and down relative to the main housing. The wiring structure is disposed in the lifting housing and has a first positioning part for limiting a first portion of the wiring harness. The main housing has a second positioning part for limiting a second portion of the wiring harness, and a movable segment is formed between the first and second portions of the wiring harness. When the lifting housing moves relative to the main housing, the first positioning part can move closer to or away from the second positioning part. When the first positioning part moves closer to the second positioning part, at least a portion of the movable segment bends; when the first positioning part moves away from the second positioning part, at least a portion of the movable segment extends. By limiting the first and second portions of the wiring harness respectively through the first and second positioning parts, only the movable segment of the wiring harness has a certain degree of freedom, so as to adaptively bend and extend during the movement of the lifting housing, avoiding excessive pulling and tangling of the wiring harness, and helping to ensure the normal operation of the lifting range hood. Attached Figure Description

[0033] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0034] Figure 1 This is a schematic diagram of the structure of the lifting box in the first position in the lifting range hood provided in the embodiment of this application;

[0035] Figure 2 This is a schematic diagram of the structure of the lifting box in the second position in the lifting range hood provided in the embodiment of this application;

[0036] Figure 3 for Figure 1 Schematic diagram showing the position of the center wire harness inside the wiring structure;

[0037] Figure 4 for Figure 2 Schematic diagram showing the position of the center wire harness inside the wiring structure;

[0038] Figure 5 for Figure 3 Schematic diagram of the connection structure between the wiring harness and the cabling structure;

[0039] Figure 6 for Figure 4 Schematic diagram of the connection structure between the wiring harness and the cabling structure;

[0040] Figure 7 for Figure 6 A schematic diagram of the wiring harness and wiring structure from another perspective.

[0041] Explanation of reference numerals in the attached figures:

[0042] 100 - Main box; 101 - Second positioning part;

[0043] 110 - Second back panel; 111 - Cable routing section;

[0044] 120-baffle;

[0045] 200-lifting box;

[0046] 210 - First backplate;

[0047] 220 - Wiring component; 221 - First entrance / exit; 222 - Wiring area;

[0048] 300 - Wiring structure; 301 - First positioning part; 302 - First limiting part; 303 - Second limiting part; 304 - Receiving cavity;

[0049] 310 - Junction box; 311 - Connector; 312 - Third inlet / outlet; 313 - Fourth inlet / outlet;

[0050] 320 - Cover plate; 321 - Rib;

[0051] 900 - Wiring harness; 901 - Part 1; 902 - Part 2; 903 - Moving section.

[0052] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0054] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein.

[0055] In this application, the terms "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0056] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0057] Unless otherwise stated, the term "multiple" means two or more.

[0058] As can be seen from the background technology, lift-type range hoods have lifting capabilities, which can adjust the air pressure at the smoke inlet by lifting, thereby flexibly adapting to different cooking conditions.

[0059] A typical range hood with lift mechanism consists of a main housing, a lift housing, and a lifting structure. The lift housing is located below and connected to the main housing, and the smoke inlet is located below the lift housing. With the help of the lifting structure, the lift housing can move up and down relative to the main housing, thus raising and lowering the smoke inlet.

[0060] The inside of the lifting range hood is also equipped with a wiring harness structure. The wiring harness structure is arranged according to the internal functional layout and electrical component distribution of the lifting range hood to connect the various functional modules of the lifting range hood, realize signal transmission and power supply between the functional modules, and some wiring harness structures will be laid in the connection area between the main box and the lifting box.

[0061] Since the lifting box is dynamically moving, and the wiring harness itself has a certain length and flexibility, when the lifting box is rising or falling, if the wiring harness located in the connection area between the main box and the lifting box is not properly sorted and fixed, it is easy for them to become intertwined and tangled together as the lifting box moves.

[0062] Furthermore, during the lifting and lowering process, the wiring harness needs to extend and bend accordingly. If the wiring harness does not have sufficient length margin after winding, it may be excessively stretched when the lifting box is raised and lowered rapidly, causing the internal wires to break and the insulation layer to be damaged, leading to faults such as short circuits and open circuits. This, in turn, affects the power supply or signal transmission of the range hood, making it unable to operate normally and reducing the service life of the range hood.

[0063] It is evident that during the lifting and lowering of the range hood, the wiring harness is prone to tangling and excessive pulling, affecting the normal operation of the lifting range hood.

[0064] To address the aforementioned issues, this application provides a lifting range hood, comprising a main housing, a lifting housing, and a wiring structure. The main housing is connected to the lifting housing, which is positioned below the main housing and is capable of lifting relative to the main housing. The wiring structure is located within the lifting housing and includes a first positioning part for limiting a first portion of the wiring harness. The main housing includes a second positioning part for limiting a second portion of the wiring harness, and a movable segment is formed between the first and second portions of the wiring harness.

[0065] When the lifting box moves relative to the main box, the first positioning part can move closer to or further away from the second positioning part; when the first positioning part moves closer to the second positioning part, at least a portion of the movable section bends, and when the first positioning part moves further away from the second positioning part, at least a portion of the movable section extends.

[0066] The first and second positioning parts limit the first and second parts of the wire harness respectively, allowing only a certain degree of freedom to the moving section of the wire harness, so that it can bend and stretch adaptively during the movement of the lifting box, avoiding excessive pulling and tangling of the wire harness, and ensuring the normal operation of the lifting range hood under different cooking conditions.

[0067] The technical solutions of this application and how they solve the aforementioned technical problems are described in detail below with specific embodiments. These specific embodiments may exist independently or in combination with each other. Identical or similar concepts or processes may not be repeated in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0068] Combination Figure 1 and Figure 2 As shown in the figure, this application embodiment provides a lifting range hood, including a main box 100 and a lifting box 200; the main box 100 and the lifting box 200 are connected, the lifting box 200 is disposed below the main box 100, and the lifting box 200 can be lifted and lowered relative to the main box 100.

[0069] Understandably, the lifting box 200 and the main box 100 are in the vertical direction ( Figure 1 The elevator box 200 is located below the main box 100 and is distributed in the Z direction.

[0070] The main housing 100 may be equipped with a smoke extraction fan (not shown in the figure). The air inlet of the smoke extraction fan is connected to the lifting housing 200, and the air outlet of the smoke extraction fan can be connected to the exhaust duct. The lifting housing 200 is used to form a smoke collection chamber, which is connected to the air inlet of the smoke extraction fan.

[0071] The smoke collection chamber is equipped with a smoke inlet facing the cooking area. The fumes generated in the cooking area are drawn into the smoke collection chamber through the smoke inlet by the exhaust fan, then enter the main chamber 100, and finally are exhausted into the exhaust duct by the exhaust fan.

[0072] Specifically, the lifting box 200 rises relative to the main box 100 to reach the first position. At this time, the position of the lifting box 200 is higher, and the position of the smoke inlet below the lifting box 200 is also higher. At this time, the lifting range hood can be used for cooking modes that produce relatively little oil smoke, such as steaming, stewing, or frying with less oil.

[0073] The lifting box 200 descends relative to the main box 100 to reach the second position. At this time, the position of the lifting box 200 is lower, and the position of the smoke inlet below the lifting box 200 is also lower. The smoke inlet is closer to the cooking area, which can effectively capture oil fumes. At this time, the lifting range hood can be used for cooking modes with heavy oil fumes such as stir-frying or high-temperature frying.

[0074] It should be noted that the first position is higher than the second position. When the range hood is in the off state, the lifting box 200 can be in the first position to minimize the size of the range hood and ensure the rational use of kitchen space.

[0075] Among them, the rear side of the lifting box 200 (facing) Figure 1A first backplate 210 is provided on one side of the X-axis, and the first backplate 210 covers the rear side of the lifting box 200.

[0076] The rear side of the main box 100 (facing) Figure 1 A second backplate 110 is provided on one side of the X-axis of the main box 100, and the second backplate 110 covers the rear side of the main box 100. If at least a part of the main box 100 is located inside the lifting box 200, then the second backplate 110 is at least partially located inside the first backplate 210.

[0077] Combination Figure 3 and Figure 4 As shown, in some embodiments, the lifting range hood further includes a wiring structure 300, which is disposed in the lifting box 200. The wiring structure 300 is provided with a first positioning part 301, which is used to limit the first part 901 of the wiring harness 900. The main box 100 is provided with a second positioning part 101, which is used to limit the second part 902 of the wiring harness 900. A movable segment 903 is formed between the first part 901 and the second part 902 of the wiring harness 900.

[0078] Specifically, when the lifting box 200 moves relative to the main box 100, the first positioning part 301 can move closer to or further away from the second positioning part 101. When the first positioning part 301 moves closer to the second positioning part 101, at least part of the movable segment 903 bends, and the length of the wire harness 900 can be used reasonably, avoiding slackness and disorder of the wire harness 900.

[0079] When the first positioning part 301 moves away from the second positioning part 101, at least part of the movable segment 903 extends, providing sufficient length margin to avoid excessive pulling and mechanical damage to the wire harness 900.

[0080] Understandably, the first positioning part 301, by limiting the first portion 901 of the wire harness 900, can ensure the orderly arrangement of a portion of the wire harness 900 within the lifting box 200. This limiting effect prevents the wire harness 900 from moving or tangling disorderly during lifting, thereby reducing space waste and potential mechanical interference caused by the tangling of the wire harness 900.

[0081] Similarly, the second positioning part 101, by limiting the second part 902 of the wire harness 900, can further ensure the orderly arrangement of a portion of the wire harness 900 within the main box 100. This design not only prevents disorderly movement of the wire harness 900 within the main box 100, but also provides a stable starting and ending point for the wire harness 900 during lifting and lowering.

[0082] A movable segment 903 is formed between the first part 901 and the second part 902 of the wire harness 900. The movable segment 903 allows the wire harness 900 a certain degree of freedom when the lifting box 200 moves. It can bend and stretch adaptively during the movement of the lifting box 200, absorb the length changes generated during the lifting process, and prevent mechanical damage to the wire harness 900 caused by entanglement and pulling.

[0083] Specifically, in the lifting range hood provided in this application embodiment, the arrangement of the first positioning part 301 and the second positioning part 101 ensures the orderly arrangement of the wire harness 900 within the main box 100 and the lifting box 200. The design of the movable section 903 provides the degree of freedom of the wire harness 900 during the lifting process, avoiding excessive pulling and tangling of the wire harness 900. This effectively solves the problem of tangling and excessive pulling of the wire harness 900 during the lifting process. While providing flexible adjustment capabilities, it maintains the neatness of the internal structure and the stability of the electrical system, thereby improving the reliability and service life of the lifting range hood.

[0084] Combination Figure 3 and Figure 4 As shown, in some embodiments, during the process of the lifting box 200 moving from the first position to the second position, or from the second position to the first position: the first positioning part 301 first approaches the second positioning part 101, at least a portion of the movable segment 903 bends, and then the first positioning part 301 moves away from the second positioning part 101, at least a portion of the movable segment 903 extends.

[0085] Taking the process of the lifting box 200 moving from the first position to the second position as an example, the first positioning part 301 first moves down and approaches the second positioning part 101. At this time, the distance between the first positioning part 301 and the second positioning part 101 gradually decreases, which will cause at least a part of the movable segment 903 to bend. The bending of the movable segment 903 can absorb the initial length change and prevent the movable segment 903 from being over-wound.

[0086] In the subsequent stage of the movement of the lifting box 200, the first positioning part 301 continues to move downward and will move away from the second positioning part 101. At this time, the distance between the first positioning part 301 and the second positioning part 101 gradually increases, which will cause at least a part of the moving section 903 to extend, so as to adapt to the change in distance between the first positioning part 301 and the second positioning part 101 and avoid excessive pulling of the wire harness 900.

[0087] During the process of the lifting box 200 moving from the second position to the first position, the first positioning part 301 first moves upward and closer to the second positioning part 101, and then continues to move upward and away from the second positioning part 101. The extension and bending of the movable section 903 is the same as the above process, and will not be described again here.

[0088] When the lifting box 200 is in the first position, the first positioning part 301 is higher than the second positioning part 101; when the lifting box 200 is in the second position, the second positioning part 101 is higher than the first positioning part 301, and the first positioning part 301 and the second positioning part 101 are arranged at intervals along the horizontal direction.

[0089] With this configuration, at both extreme positions of the lifting box 200, one positioning part is always higher than the other. This height difference design allows the maximum distance between the two positioning parts to be relatively small. By reducing the maximum distance between the two positioning parts, the span of the wiring harness 900 between the two positions is reduced, thereby reducing the length of the movable section 903 that needs to be reserved.

[0090] Because the length of the movable segment 903 can be smaller, the amount of wire harness 900 used is reduced, which not only reduces material costs, but also helps to reduce the possibility of wire harness 900 tangling and excessive pulling during lifting and lowering, as the shorter movable segment 903 has a smaller bending and stretching range.

[0091] Specifically, when the lifting box 200 is in the first position (higher position), the movable section 903 naturally droops and bends to absorb excess wire harness 900 length, which helps to prevent the wire harness 900 from becoming loose and disordered when in a high position, ensuring the orderliness and safety of the wire harness 900.

[0092] When the lifting box 200 is in the second position (lower position), the movable section 903 needs to extend to accommodate the descent of the lifting box 200, preventing the wiring harness 900 from breaking due to excessive pulling.

[0093] The length of the active segment 903 is greater than or equal to 1.2 times the maximum straight-line distance between the first positioning part 301 and the second positioning part 101, and less than or equal to 2 times the maximum straight-line distance between the first positioning part 301 and the second positioning part 101.

[0094] Understandably, during the lifting process, the wiring harness 900 needs to bend and stretch between different positions. If the length of the movable segment 903 is too short, the wiring harness 900 may be excessively stretched when the lifting box 200 moves to its limit position. If the length of the movable segment 903 is too long, the wiring harness 900 may become tangled and intertwined during the movement of the lifting box 200.

[0095] It should be noted that the length of the movable segment 903 can be optimized based on the physical characteristics of the wire harness 900 when bending and stretching, as well as the range of motion of the lifting box 200. By ensuring that the length of the movable segment 903 is appropriate, the risk of the wire harness 900 being tangled due to being too long or damaged due to being too short during the lifting process can be reduced.

[0096] For example, the length of the active segment 903 can be 1.5 times the maximum straight-line distance between the first positioning part 301 and the second positioning part 101. This length can provide sufficient length margin to absorb the length changes generated during the lifting process, allowing the harness 900 to be freely adjusted throughout the entire range of motion of the lifting box 200 without mechanical damage due to excessive pulling or tightness due to insufficient length.

[0097] Combination Figure 3 and Figure 4 As shown, in some embodiments, the wiring structure 300 includes a junction box 310, which is connected to the lifting box 200; the junction box 310 and the first back plate 210 surround a receiving cavity 304, and the movable section 903 is disposed in the receiving cavity 304.

[0098] The junction box 310 provides a dedicated channel and protective structure for accommodating and guiding the wiring harness 900. The receiving cavity 304 formed by the junction box 310 and the first back plate 210 provides a protected environment to prevent the wiring harness 900 from being interfered with or damaged by external objects during movement.

[0099] Placing the movable segment 903 within the receiving cavity 304 ensures that the movable segment 903 is arranged in an orderly manner and bends or stretches appropriately during the lifting and lowering process. This helps to ensure that the wire harness 900 remains under control during the lifting and lowering process, avoiding tangling and damage caused by external interference.

[0100] In some embodiments, the first positioning part 301 is a winding post protruding from the inner wall of the receiving cavity 304, and the axis of the winding post is perpendicular to the first back plate 210; the first part 901 of the wire harness 900 is wound around the top of the winding post.

[0101] Understandably, the winding post serves as a limiting and guiding structure for the wire harness 900, ensuring the orderly arrangement of the first part 901 of the wire harness 900 within the receiving cavity 304. By winding the wire harness 900 onto the winding post, disorderly movement of the first part 901 of the wire harness 900 during lifting and lowering can be effectively prevented.

[0102] The wire harness 900 is wound around the top of the winding post, and the height of the winding post is used to manage the length and path of the wire harness 900. This design provides the wire harness 900 with room to move during lifting and lowering, preventing the wire harness 900 from being damaged due to excessive tension.

[0103] Wherein, the first part 901 of the wire harness 900 is wound around the top of the winding post, rather than around the entire circumference of the winding post. When the length of the movable segment 903 is insufficient, the first part 901 can adaptably move to the location of the movable segment 903 to supplement the length of the movable segment 903 and avoid excessive pulling of the movable segment 903.

[0104] In other embodiments, the first portion 901 of the wire harness 900 may be wound around the periphery of the winding post, so that the position of the first portion 901 of the wire harness 900 can be better restricted to avoid displacement, thereby preventing the non-moving parts of the wire harness 900 from becoming loose.

[0105] In some embodiments, the second positioning part 101 is a fixing member disposed on the second back plate 110. The second part 902 of the wire harness 900 can be fixed to the second back plate 110 by the fixing member.

[0106] For example, the fastener can be a claw or double-sided tape, as long as it can fix the wire harness 900 to the second positioning part 101. This application embodiment does not impose any restrictions on this.

[0107] Combination Figure 4 As shown, in some embodiments, the wiring structure 300 is provided with a first limiting part 302, which protrudes from the inner wall of the receiving cavity 304; when the second positioning part 101 is higher than the first positioning part 301, at least a portion of the movable segment 903 contacts the bottom of the first limiting part 302.

[0108] Understandably, the first limiting part 302 can provide a physical barrier to limit the range of motion of the wire harness 900, so as to prevent the wire harness 900 from moving or tangling disorderly during lifting and lowering, and to ensure the orderly arrangement of the wire harness 900 in the receiving cavity 304.

[0109] Specifically, when the second positioning part 101 is higher than the first positioning part 301, at least a portion of the movable segment 903 will contact the first limiting part 302. This contact relationship ensures that the wiring harness 900 maintains appropriate tension and path during lifting and lowering. Through contact with the limiting part, the movable segment 903 can be guided during lifting and lowering, preventing disorderly movement of the wiring harness 900 due to gravity or other external forces.

[0110] Combination Figure 3 As shown, in some embodiments, the wiring structure 300 is provided with a second limiting part 303, which protrudes from the inner wall of the receiving cavity 304; when the second positioning part 101 is lower than the first positioning part 301, at least a portion of the movable segment 903 contacts the side of the second limiting part 303 near the second positioning part 101.

[0111] Understandably, the second limiting part 303 can provide additional physical barriers and support points to further limit and guide the range of motion of the wiring harness 900, thereby increasing the stability and path control of the wiring harness 900 and reducing the disordered movement of the wiring harness 900 during the lifting and lowering process.

[0112] Specifically, when the second positioning part 101 is lower than the first positioning part 301, at least a portion of the movable segment 903 will contact the side of the second limiting part 303 closest to the second positioning part 101. Through contact with the limiting part, the movable segment 903 can be supported during the lifting and lowering process, preventing the wire harness 900 from moving randomly due to gravity or other external forces.

[0113] It should be noted that, in the horizontal direction, both the first limiting part 302 and the second limiting part 303 are disposed between the first positioning part 301 and the second positioning part 101. In the vertical direction, the first limiting part 302 is disposed above the second limiting part 303.

[0114] Specifically, the setting of the limiting part and the contact relationship between the wire harness 900 and the limiting part provide path control and support functions for the wire harness 900, ensuring the orderly arrangement and appropriate tension of the wire harness 900 throughout the lifting process. The lifting range hood can effectively manage the movement of the wire harness 900 during the lifting process, avoiding problems such as tangling and excessive pulling.

[0115] In some embodiments, the lifting box 200 is provided with a wiring component 220, which is located on the inner side of the first back plate 210 and has a first inlet / outlet 221.

[0116] The wiring component 220 is installed on the first back plate 210, and the wiring component 220 and the first back plate 210 can form a wiring area 222 for accommodating the wire harness 900. The wire harness 900 is laid in the wiring area 222, which can avoid being exposed inside the lifting box 200, thereby avoiding direct contact with oil fumes.

[0117] Part of the wiring harness 900 can pass through the wiring area 222 from the first entrance 221 to connect with electrical components inside the elevator box 200.

[0118] The second back panel 110 of the main box 100 is provided with a wiring section 111, which has a second inlet / outlet (not shown in the figure).

[0119] For example, a strip-shaped protrusion extending into the main housing 100 can be formed on the second back plate 110 using a sheet metal stamping process, serving as a wiring section 111. The second inlet / outlet is located at the bottom end of the wiring section 111 in its extending direction (opposite to the main housing 100). Figure 1 (One end in the Z direction). Part of the wiring harness 900 can be laid in the wiring section 111 to connect to the power box located at the top of the main box 100.

[0120] A baffle 120 may be provided on the rear side of the second back plate 110. The baffle 120 can cover one side of the opening of the wiring section 111 to provide protection for the wire harness 900 located inside the wiring section 111.

[0121] The junction box 310 is provided with a connecting part 311, which is connected to the wiring component 220. The junction box 310 is also provided with a third inlet 312 and a fourth inlet 313. The third inlet 312 is connected to the first inlet 221, and the fourth inlet 313 is connected to the second inlet.

[0122] The connecting part 311 is located at the bottom of the junction box 310, and the third inlet / outlet 312 is provided with protrusions around its perimeter. The connecting part 311 can be snapped into the wiring component 220, so that the protrusions at the third inlet / outlet 312 can be inserted into the first inlet / outlet 221, thereby connecting the third inlet / outlet 312 with the first inlet / outlet 221.

[0123] Furthermore, to improve the stability of the junction box 310, additional locking devices can be used to securely connect the junction box 310 and the lifting box 200.

[0124] The connection design between the third entrance / exit 312 and the first entrance / exit 221, and the connection design between the fourth entrance / exit 313 and the second entrance / exit, provide a continuous path for the wiring harness 900 between the lifting box 200 and the main box 100. This ensures an orderly transition of the wiring harness 900 between the lifting box 200 and the main box 100, and helps to ensure the stability and reliability of the wiring harness 900.

[0125] Combination Figure 5 and Figure 6 As shown, in some embodiments, the wiring structure 300 includes a cover plate 320, which is detachably connected to the side of the junction box 310 near the first back plate 210. The junction box 310 and the cover plate 320 form a receiving cavity 304.

[0126] The receiving cavity 304 formed by the junction box 310 and the cover plate 320 provides a dedicated channel and protective space for the wire harness 900, which can prevent the wire harness 900 from getting tangled and damaged due to external interference during the lifting process, and ensure that the wire harness 900 remains orderly during the lifting process.

[0127] The removable design of the cover plate 320 improves the maintainability of the wiring structure 300, allowing operators to easily inspect and maintain the wiring harness 900 inside the junction box 310.

[0128] For example, the periphery of the cover plate 320 may be provided with a latching protrusion, and the periphery of the wire box 310 may be provided with a corresponding latching groove. The connection between the cover plate 320 and the wire box 310 is achieved through the cooperation of the latching protrusion and the latching groove.

[0129] Combination Figure 7As shown, the first limiting part 302 and the second limiting part 303 can be disposed on the cover plate 320. After the cover plate 320 is connected to the junction box 310, the first limiting part 302 and the second limiting part 303 protrude from the inner wall of the receiving cavity 304 to provide effective guidance and support for the movable section 903.

[0130] Combination Figure 5 and Figure 6 As shown, in some embodiments, the second back plate 110 is at least partially disposed inside the first back plate 210; the cover plate 320 is provided with a rib 321 on one side of the offline box 310, and when the lifting box 200 moves relative to the main box 100, the rib 321 slides in contact with the inner wall of the second back plate 110.

[0131] Understandably, there is a gap between the cover plate 320 and the first back plate 210. When the lifting box 200 moves up and down, at least a portion of the second back plate 110 is located within the gap, and the cover plate 320 slides in contact with the inner wall of the second back plate 110.

[0132] By providing a rib 321 on one side of the cover plate 320 behind the offline box 310, the structural strength and rigidity of the cover plate 320 can be increased, and the contact area between the cover plate 320 and the inner wall of the second back plate 110 can be reduced, thereby reducing the frictional resistance between them, reducing possible mechanical wear and noise during lifting, and improving the smoothness of the movement of the lifting box 200.

[0133] The technical solutions of this application have been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of this application is obviously not limited to these specific embodiments. The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A lifting smoke machine, characterized in that, It includes a main box (100), a lifting box (200), and a wiring structure (300); the main box (100) is connected to the lifting box (200), the lifting box (200) is located below the main box (100), and the lifting box (200) can be raised and lowered relative to the main box (100); The wiring structure (300) is disposed in the lifting box (200), and the wiring structure (300) is provided with a first positioning part (301), which is used to limit the first part (901) of the wire harness (900); The main box (100) is provided with a second positioning part (101), which is used to limit the second part (902) of the wire harness (900), and a movable segment (903) is formed between the first part (901) and the second part (902) of the wire harness (900); When the lifting box (200) moves relative to the main box (100), the first positioning part (301) can move closer to or further away from the second positioning part (101); When the first positioning part (301) approaches the second positioning part (101), at least a portion of the movable segment (903) bends, and when the first positioning part (301) moves away from the second positioning part (101), at least a portion of the movable segment (903) extends.

2. The lifting smoke machine according to claim 1, characterized in that, During the process of the lifting box (200) moving from the first position to the second position, or from the second position to the first position: The first positioning part (301) first approaches the second positioning part (101), at least part of the movable segment (903) bends, and the first positioning part (301) then moves away from the second positioning part (101), at least part of the movable segment (903) extends; The first position is higher than the second position.

3. The lifting smoke machine according to claim 2, characterized in that, When the lifting box (200) is in the first position, the first positioning part (301) is higher than the second positioning part (101); When the lifting box (200) is in the second position, the second positioning part (101) is higher than the first positioning part (301); The first positioning part (301) and the second positioning part (101) are arranged at intervals along the horizontal direction.

4. The lifting smoke machine according to claim 1, characterized in that, The length of the active segment (903) is greater than or equal to 1.2 times the maximum straight-line distance between the first positioning part (301) and the second positioning part (101), and less than or equal to 2 times the maximum straight-line distance between the first positioning part (301) and the second positioning part (101).

5. The lifting smoke machine according to any one of claims 1-4, characterized in that, The wiring structure (300) includes a junction box (310), which is connected to the lifting box (200); The lifting box (200) is provided with a first back plate (210), the wire box (310) and the first back plate (210) are arranged to form a receiving cavity (304), and the movable section (903) is disposed in the receiving cavity (304).

6. The lifting smoke machine according to claim 5, characterized in that, The first positioning part (301) is a winding post protruding from the inner wall of the receiving cavity (304), and the axis of the winding post is perpendicular to the first back plate (210). The first portion (901) of the wire harness (900) is wound around the top of the winding post.

7. The lifting smoke machine according to claim 5, characterized in that, The wiring structure (300) is provided with a first limiting part (302), which protrudes from the inner wall of the receiving cavity (304); When the second positioning part (101) is higher than the first positioning part (301), at least a portion of the movable segment (903) contacts the bottom of the first limiting part (302); And / or, the wiring structure (300) is provided with a second limiting part (303), the second limiting part (303) protruding from the inner wall of the receiving cavity (304); When the second positioning part (101) is lower than the first positioning part (301), at least a portion of the active segment (903) contacts the side of the second limiting part (303) near the second positioning part (101).

8. The lifting smoke machine according to claim 6, characterized in that, The lifting box (200) is provided with a wiring component (220), which is located on the inner side of the first back plate (210) and has a first entrance / exit (221). The main box (100) is provided with a second back plate (110), the second back plate (110) is provided with a wiring section (111), and the wiring section (111) is provided with a second inlet and outlet; The junction box (310) is provided with a connecting part (311), which is connected to the wiring component (220). The junction box (310) is also provided with a third inlet (312) and a fourth inlet (313). The third inlet (312) is connected to the first inlet (221), and the fourth inlet (313) is connected to the second inlet.

9. The lifting smoke machine according to claim 8, characterized in that, The wiring structure (300) includes a cover plate (320), which is detachably connected to the side of the cable box (310) near the first back plate (210). The cable box (310) and the cover plate (320) together form the receiving cavity (304).

10. The lifting smoke machine according to claim 9, characterized in that, The second back plate (110) is at least partially disposed inside the first back plate (210); The cover plate (320) is provided with a raised rib (321) on the side away from the wire box (310). When the lifting box (200) moves relative to the main box (100), the raised rib (321) slides in contact with the inner wall of the second back plate (110).

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