A range hood

Abstract

The utility model discloses a kind of range hood. The range hood includes smoke collecting hood, is internally provided with smoke collecting cavity, and the front side of smoke collecting hood is provided with the smoke inlet that is communicated with smoke collecting cavity;Smoke gathering part is slidably connected with smoke collecting hood and is arranged at the smoke inlet;Driving structure is arranged in smoke collecting cavity, and driving structure includes driving part, transmission shaft, driving link assembly and driven link assembly, transmission shaft is arranged along left and right direction extension, the output end of driving part is connected with the first end of driving link assembly and the left end of transmission shaft, the second end of driving link assembly is connected with the left end of smoke gathering part, the first end of driven link assembly is connected with the right end of transmission shaft, the second end of driven link assembly is connected with the right end of smoke gathering part, driving part can drive driving link assembly swing between extension position and retracted position, simultaneously through transmission shaft driving driven link assembly and driving link assembly synchronous swing between extension position and retracted position.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a range hood. Background Technology

[0002] In the current range hood market, the design of a glass panel with a sliding smoke inlet is becoming increasingly common. To achieve smooth sliding of the panel, one of the mainstream solutions currently is to use a small DC motor to drive one side of the panel, and then use a synchronous shaft to transmit the motor's rotational torque to the other side of the panel. Rigid linkage mechanisms are set on both sides of the panel to synchronously drive the movement of both sides. This solution has a relatively simple structure, controllable cost, and can basically meet the requirements for panel opening and closing.

[0003] However, this existing technology has significant drawbacks in practical applications. Due to the long transmission chain, accumulated mechanical backlash, manufacturing tolerances, and minor torsional deformation of the synchronous shaft are difficult to avoid. This results in the driven side (the side not directly driven by the motor) often lagging behind the driving side when the panel is closed, making it impossible to achieve a completely synchronized and tight closure on both sides. This not only affects the flatness of the product's appearance but may also lead to a decrease in the sealing performance when closed, affecting the smoke extraction effect and potentially generating noise.

[0004] Therefore, there is an urgent need for a range hood to solve the above problems. Utility Model Content

[0005] This utility model aims to at least partially solve one of the problems existing in the existing related technologies. To this end, this utility model proposes a range hood in which both the left and right sides of the smoke collection part can be tightly closed in place, and the structure is simple.

[0006] The above objectives are achieved through the following technical solutions:

[0007] A range hood, comprising:

[0008] A smoke collection hood has a smoke collection chamber inside, and a smoke inlet communicating with the smoke collection chamber is provided on the front side of the smoke collection hood;

[0009] The smoke collection part is slidably connected to the smoke collection hood and is disposed at the smoke inlet;

[0010] A drive structure is disposed in the smoke collection chamber. The drive structure includes a drive member, a transmission shaft, an active linkage assembly, and a driven linkage assembly. The transmission shaft extends in a left-right direction. The output end of the drive member is connected to the first end of the active linkage assembly and the left end of the transmission shaft. The second end of the active linkage assembly is connected to the left end of the smoke collection section. The first end of the driven linkage assembly is connected to the right end of the transmission shaft. The second end of the driven linkage assembly is connected to the right end of the smoke collection section. The drive member is capable of driving the active linkage assembly. The linkage assembly swings between an extended position and a retracted position, while simultaneously driving the driven linkage assembly and the driving linkage assembly to swing synchronously between the extended and retracted positions via the drive shaft. When the driving linkage assembly and the driven linkage assembly are in the extended position, the smoke-gathering part extends forward from the smoke collection chamber through the smoke inlet to the front side of the smoke collection hood; when the driving linkage assembly and the driven linkage assembly are in the retracted position, the smoke-gathering part retracts backward from the front side of the smoke collection hood through the smoke inlet into the smoke collection chamber.

[0011] An elastic element has its first end connected to the driven linkage assembly and its second end connected to the smoke collection part. When the driven linkage assembly is in the extended position, the elastic element is tilted forward from bottom to top and is in a natural or compressed state. When the driven linkage assembly is in the retracted position, the elastic element is tilted forward from bottom to top and is in a stretched state.

[0012] Optionally, the smoke collection part includes a panel and a smoke collection box disposed on the rear side of the panel, the lower side of the smoke collection box is provided with a smoke collection inlet, and the second end of the elastic member is connected to the smoke collection box.

[0013] Optionally, the second end of the elastic element is connected to the right side plate of the cigarette holder.

[0014] Optionally, the driven link assembly includes a first link and a second link. The first end of the first link is connected to the right end of the drive shaft, the second end of the first link is hinged to the rear end of the second link, and the front end of the second link is hinged to the right end of the smoke collection part. When the driven link assembly is in the retracted position, the first link is arranged vertically, and the second link is inclined upward from back to front. When the driven link assembly is in the extended position, the second end of the first link swings to the front of the first end of the first link, the rear end of the second link swings upward, and the first end of the elastic member is connected to the rear part of the second link.

[0015] Optionally, a first mounting hole is provided on the right side plate of the cigarette holder, and a second connecting hole is provided at the rear of the second connecting rod. The first end of the elastic element is mounted on the second connecting hole by a screw, and the second end of the elastic element is mounted on the first mounting hole by a screw.

[0016] Optionally, the active linkage assembly includes a third link and a fourth link. The first end of the third link is connected to the output end of the drive member, the second end of the third link is hinged to the rear end of the fourth link, and the front end of the fourth link is hinged to the left end of the smoke collection part. When the active linkage assembly is in the retracted position, the third link is arranged vertically, and the fourth link is inclined upward from back to front. When the active linkage assembly is in the extended position, the second end of the third link swings to the front of the first end of the third link, and the rear end of the fourth link swings upward.

[0017] Optionally, the drive unit is installed on the left side wall of the smoke collection chamber.

[0018] Optionally, it also includes a slide rail assembly, which is arranged in the front-to-back direction, and the left and right ends of the smoke collection part are slidably mounted on the smoke collection hood via the slide rail assembly.

[0019] Optionally, the elastic element is a spring.

[0020] Compared with the prior art, the present invention has at least the following beneficial effects:

[0021] The range hood provided by this utility model incorporates an elastic element. When the driven linkage assembly is in the extended position, the elastic element is tilted forward from bottom to top and is in a natural or compressed state. This generates a forward supporting force between the driven linkage assembly and the right side of the smoke collection part, thereby improving the pressure resistance of the left side of the smoke collection part in the extended position. When the driven linkage assembly is in the retracted position, the elastic element is tilted forward from bottom to top and is in a stretched state. This generates a rearward pulling force between the driven linkage assembly and the left side of the smoke collection part, allowing the right side of the smoke collection part to retract into place. The structure is simple and easy to install. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the range hood provided in a specific embodiment of the present utility model (the smoke collection part extends to the front side of the smoke collection hood);

[0023] Figure 2 This is one of the three-dimensional structural diagrams of the range hood after removing the rear panel of the smoke collection hood according to a specific embodiment of the present utility model (the smoke collection part extends to the front side of the smoke collection hood);

[0024] Figure 3 This is a second schematic diagram of the removal of the rear panel of the smoke collection hood in a specific embodiment of the present utility model (the smoke collection part extends to the front side of the smoke collection hood);

[0025] Figure 4 yes Figure 3 A sectional view;

[0026] Figure 5 This is a three-dimensional structural diagram of the range hood after the rear panel of the smoke collection hood is removed, according to a specific embodiment of the present utility model (the smoke collection part is retracted into the smoke collection cavity);

[0027] Figure 6 yes Figure 5 A sectional view.

[0028] In the picture:

[0029] 1. Smoke hood; 10. Smoke collection chamber;

[0030] 2. Smoke collection section; 21. Panel; 22. Smoke collection box;

[0031] 3. Driving components;

[0032] 41. Drive shaft; 42. Driving link assembly; 421. Third link; 422. Fourth link; 43. Driven link assembly; 431. First link; 432. Second link;

[0033] 5. Elastic components. Detailed Implementation

[0034] The following embodiments illustrate the present invention, but the present invention is not limited to these embodiments. Modifications to the specific implementation of the present invention or equivalent substitutions for some technical features, without departing from the spirit of the present invention, should all be covered within the scope of the technical solution claimed by the present invention.

[0035] Please refer to Figures 1-6This utility model provides a range hood, including a smoke collection hood 1, a smoke gathering part 2, and a drive structure. The smoke collection hood 1 has a smoke collection chamber 10 inside, and a smoke inlet communicating with the smoke collection chamber 10 is opened on the front side of the smoke collection hood 1. The smoke gathering part 2 is slidably connected to the smoke collection hood 1 and is located at the smoke inlet. The drive structure is located in the smoke collection chamber 10 and includes a drive component 3, a transmission shaft 41, an active connecting rod assembly 42, and a driven connecting rod assembly 43. The transmission shaft 41 extends in a left-right direction. The output end of the drive component 3 is connected to the first end of the active connecting rod assembly 42 and the left end of the transmission shaft 41. The second end of the active connecting rod assembly 42 is connected to the left end of the smoke gathering part 2. The first end of the driven connecting rod assembly 43 is connected to the right end of the transmission shaft 41, and the second end of the driven connecting rod assembly 43 is connected to the right end of the smoke gathering part 2. The drive component 3 can... The active linkage assembly 42 is driven to swing between an extended position and a retracted position. Simultaneously, the driven linkage assembly 43 is driven by the transmission shaft 41 to swing synchronously between the extended and retracted positions. When the active linkage assembly 42 and the driven linkage assembly 43 are in the extended position, the smoke-collecting part 2 extends forward from the smoke-collecting chamber 10 through the smoke inlet to the front side of the smoke-collecting hood 1. When the active linkage assembly 42 and the driven linkage assembly 43 are in the retracted position, the smoke-collecting part 2 retracts backward from the front side of the smoke-collecting hood 1 through the smoke inlet into the smoke-collecting chamber 10. The first end of the elastic element 5 is connected to the driven linkage assembly 43, and the second end of the elastic element 5 is connected to the smoke-collecting part 2. When the driven linkage assembly 43 is in the extended position, the elastic element 5 is tilted forward from bottom to top and is in a natural or compressed state. When the driven linkage assembly 43 is in the retracted position, the elastic element 5 is tilted forward from bottom to top and is in a stretched state.

[0036] The range hood provided by this utility model, by setting an elastic element 5, ensures that when the driven link assembly 43 is in the extended position, the elastic element 5 is inclined forward from bottom to top and is in a natural or compressed state. This causes the elastic element 5 to generate a forward supporting force between the driven link assembly 43 and the left side of the smoke collection part 2, thereby improving the pressure resistance of the left side of the smoke collection part 2 in the extended position. (Specifically, when the elastic element 5 is in the natural state and the smoke collection part 2 is subjected to a rearward pressing force, the elastic element 5 generates a forward supporting force along...) Figure 4 The supporting force in the direction indicated by the middle arrow A increases the compressive stiffness of the left side of the smoke collection part 2 in the extended position; when the elastic element 5 is in a compressed state, the elastic element 5 has generated a force along the direction indicated by the middle arrow A. Figure 4 The supporting force in the direction indicated by the middle arrow A can also improve the pressure resistance of the right side of the smoke collection part 2 in the extended position; when the driven linkage assembly 43 is in the retracted position, the elastic element 5 is inclined forward from bottom to top and is in a stretched state, thereby causing the elastic element 5 to generate a rearward pulling force between the driven linkage assembly 43 and the left side of the smoke collection part 2 (such as...). Figure 6The tension (in the direction of arrow B) allows the right side of the smoke collection part 2 to retract into place, resulting in a simple structure that is easy to install.

[0037] Optionally, the smoke collection part 2 includes a panel 21 and a smoke collection box 22 disposed on the rear side of the panel 21. The smoke collection box 22 has a smoke collection inlet on its lower side, and the second end of the elastic member 5 is connected to the smoke collection box 22. When the smoke collection part 2 extends forward from the smoke collection chamber 10 through the smoke inlet to the front side of the smoke collection hood 1, the oil fumes enter the smoke collection box 22 through the smoke collection inlet, and then enter the smoke collection chamber 10.

[0038] Optionally, the second end of the elastic member 5 is connected to the right side plate of the cigarette holder 22 to apply a supporting force or a pulling force to the right side of the cigarette holder 22.

[0039] Optionally, the driven link assembly 43 includes a first link 431 and a second link 432. The first end of the first link 431 is connected to the right end of the drive shaft 41, the second end of the first link 431 is hinged to the rear end of the second link 432, and the front end of the second link 432 is hinged to the right end of the smoke collection part 2. When the driven link assembly 43 is in the retracted position, the first link 431 is arranged vertically, and the second link 432 is inclined upward from back to front. When the driven link assembly 43 is in the extended position, the second end of the first link 431 swings to the front of the first end of the first link 431, and the rear end of the second link 432 swings upward. The first end of the elastic member 5 is connected to the rear part of the second link 432.

[0040] Optionally, a first mounting hole is provided on the right side plate of the cigarette holder 22, and a second connecting hole is provided at the rear of the second connecting rod 432. The first end of the elastic element 5 is installed on the second connecting hole by a screw, and the second end of the elastic element 5 is installed on the first mounting hole by a screw.

[0041] Optionally, the active linkage assembly 42 includes a third link 421 and a fourth link 422. The first end of the third link 421 is connected to the output end of the drive member 3, the second end of the third link 421 is hinged to the rear end of the fourth link 422, and the front end of the fourth link 422 is hinged to the left end of the smoke collection part 2. When the active linkage assembly 42 is in the retracted position, the third link 421 is arranged vertically, and the fourth link 422 is inclined upward from back to front. When the active linkage assembly 42 is in the extended position, the second end of the third link 421 swings to the front of the first end of the third link 421, and the rear end of the fourth link 422 swings upward.

[0042] Optionally, the drive unit 3 is installed on the left side wall of the smoke collection chamber 10.

[0043] Optionally, it also includes a slide rail assembly, which is arranged in the front-to-back direction, and the left and right ends of the smoke collection part 2 are slidably mounted on the smoke collection hood 1 via the slide rail assembly.

[0044] Optionally, the elastic element 5 is a spring.

[0045] Optionally, the driving component 3 is a motor.

[0046] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A range hood, characterized in that, include: A smoke collection hood (1) is provided inside, and a smoke collection chamber (10) is provided on the front side of the smoke collection hood (1) to communicate with the smoke collection chamber (10); The smoke collection part (2) is slidably connected to the smoke collection hood (1) and is disposed at the smoke inlet; A drive structure is disposed in the smoke collection chamber (10). The drive structure includes a drive member (3), a transmission shaft (41), an active linkage assembly (42), and a driven linkage assembly (43). The transmission shaft (41) extends in the left-right direction. The output end of the drive member (3) is connected to the first end of the active linkage assembly (42) and the left end of the transmission shaft (41). The second end of the active linkage assembly (42) is connected to the left end of the smoke collection part (2). The first end of the driven linkage assembly (43) is connected to the right end of the transmission shaft (41). The second end of the driven linkage assembly (43) is connected to the right end of the smoke collection part (2). The drive member (3) is capable of driving the smoke collection part (2). The active linkage assembly (42) swings between the extended position and the retracted position, and at the same time, the driven linkage assembly (43) is driven by the drive shaft (41) to swing synchronously between the extended position and the retracted position with the active linkage assembly (42). When the active linkage assembly (42) and the driven linkage assembly (43) are in the extended position, the smoke gathering part (2) extends forward from the smoke collection chamber (10) through the smoke inlet to the front side of the smoke collection hood (1); when the active linkage assembly (42) and the driven linkage assembly (43) are in the retracted position, the smoke gathering part (2) retracts backward from the front side of the smoke collection hood (1) through the smoke inlet into the smoke collection chamber (10). The elastic element (5) has its first end connected to the driven link assembly (43) and its second end connected to the smoke collection part (2). When the driven link assembly (43) is in the extended position, the elastic element (5) is inclined forward from bottom to top and is in a natural or compressed state. When the driven link assembly (43) is in the retracted position, the elastic element (5) is inclined forward from bottom to top and is in a stretched state.

2. The range hood according to claim 1, characterized in that, The smoke collection part (2) includes a panel (21) and a smoke collection box (22) disposed on the rear side of the panel (21). The smoke collection box (22) has a smoke collection inlet on its lower side, and the second end of the elastic member (5) is connected to the smoke collection box (22).

3. The range hood according to claim 2, characterized in that, The second end of the elastic element (5) is connected to the right side plate of the cigarette box (22).

4. The range hood according to claim 3, characterized in that, The driven link assembly (43) includes a first link (431) and a second link (432). The first end of the first link (431) is connected to the right end of the transmission shaft (41). The second end of the first link (431) is hinged to the rear end of the second link (432). The front end of the second link (432) is hinged to the right end of the smoke collection part (2). When the driven link assembly (43) is in the retracted position, the first link (431) is arranged vertically, and the second link (432) is inclined upward from back to front. When the driven link assembly (43) is in the extended position, the second end of the first link (431) swings to the front of the first end of the first link (431), and the rear end of the second link (432) swings upward. The first end of the elastic member (5) is connected to the rear part of the second link (432).

5. The hood according to claim 4, characterized in that, The right side plate of the cigarette box (22) is provided with a first mounting hole, and the rear part of the second connecting rod (432) is provided with a second connecting hole. The first end of the elastic element (5) is installed on the second connecting hole by a screw, and the second end of the elastic element (5) is installed on the first mounting hole by a screw.

6. The hood according to claim 1, characterized in that, The active linkage assembly (42) includes a third link (421) and a fourth link (422). The first end of the third link (421) is connected to the output end of the drive member (3), the second end of the third link (421) is hinged to the rear end of the fourth link (422), and the front end of the fourth link (422) is hinged to the left end of the smoke collection part (2). When the active linkage assembly (42) is in the retracted position, the third link (421) is arranged vertically, and the fourth link (422) is inclined upward from back to front. When the active linkage assembly (42) is in the extended position, the second end of the third link (421) swings to the front of the first end of the third link (421), and the rear end of the fourth link (422) swings upward.

7. The hood according to any one of claims 1-6, characterized in that, The drive unit (3) is installed on the left side wall of the smoke collection chamber (10).

8. The range hood according to any one of claims 1-6, characterized in that, It also includes a slide rail assembly, which is arranged in the front-to-back direction. The left and right ends of the smoke collection part (2) are slidably mounted on the smoke collection hood (1) through the slide rail assembly.

9. The hood according to any one of claims 1-6, characterized in that, The elastic element (5) is a spring.

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