Rotary sealing mechanism and table top range hood

Abstract

The utility model discloses a rotary sealing mechanism and a table top range hood, and belongs to the technical field of kitchen appliances. The wind wheel assembly is arranged in the supporting base; the first spherical bottom shell is arranged above the wind wheel assembly, and the first spherical bottom shell is provided with one of a rotating shaft and a rotating hole; the second spherical bottom shell is provided with the other one of a rotating shaft or a rotating hole, and the rotating shaft is rotationally connected with the rotating hole, so that a sliding sealing connection structure is formed between the first spherical bottom shell and the second spherical bottom shell; the bladeless wind shell is arranged on the side, away from the supporting base, of the second spherical bottom shell, the bladeless wind shell is provided with an air inlet facing the second spherical bottom shell, and high-pressure airflow generated by the wind wheel assembly can sequentially pass through the first spherical bottom shell and the second spherical bottom shell to be transmitted to the air inlet. According to the rotary sealing mechanism, efficient sealing performance is achieved through an innovative sliding sealing connection structure, and meanwhile the bladeless wind shell is allowed to flexibly rotate relative to the supporting base.

Description

Technical Field

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

[0002] A desktop range hood is an electrical appliance specifically designed for tabletop cooking scenarios (such as hot pot, barbecue, and stir-frying), primarily used to collect and remove fumes and odors generated during cooking. For example, the desktop range hood with patent publication number CN117006491A employs a traditional fan structure with significant drawbacks: the fan blades are directly exposed, causing fumes and food residue to easily adhere to their surface, leading to the accumulation of grease and grime. This not only reduces the range hood's fume extraction efficiency but also shortens its lifespan. Furthermore, users need to frequently disassemble and clean the fan blades, a cumbersome process that causes considerable inconvenience.

[0003] To overcome the drawbacks of exposed fan blades in traditional desktop range hoods, some designs have attempted to borrow the structure of bladeless fans. For example, the handheld bladeless fan housing (patent publication number CN208518857U) uses a concealed impeller assembly and annular casing to prevent the blades from being directly exposed, thus reducing the possibility of oil buildup. However, the application of this structure in desktop range hoods still presents several problems. Since the impeller assembly of a bladeless fan is typically housed within a support base, and a seal is required between the bladeless casing and the support base for effective airflow, desktop range hoods using bladeless fan structures struggle to directly adjust the tilt angle, limiting their practicality. In desktop cooking scenarios such as hot pot and barbecue, the position and height of the cooking source may change, and a fixed smoke inlet angle cannot meet diverse smoke extraction needs. Utility Model Content

[0004] The purpose of this invention is to provide a rotating sealing mechanism and a desktop range hood, which achieves high-efficiency sealing performance through an innovative sliding sealing connection structure, while allowing the bladeless fan shell to rotate flexibly relative to the support base.

[0005] In a first aspect, this utility model provides a rotating sealing mechanism, comprising:

[0006] Support base;

[0007] The wind turbine assembly is located within the supporting base;

[0008] A first spherical bottom shell is disposed above the wind turbine assembly, and the first bottom shell is provided with one of a rotating shaft and a rotating hole;

[0009] The second spherical bottom shell is provided with the other one of the rotating shaft and the rotating hole, and the rotating shaft is rotationally connected with the rotating hole to form a sliding sealing connection structure between the first spherical bottom shell and the second spherical bottom shell.

[0010] The bladeless wind shell is provided on the side of the second spherical bottom shell away from the support base, and the bladeless wind shell is provided with an air inlet towards the second spherical bottom shell, and the high-pressure airflow generated by the wind wheel assembly can be transmitted to the air inlet through the first spherical bottom shell and the second spherical bottom shell in sequence.

[0011] The rotating sealing mechanism provided by the utility model realizes high sealing performance, and allows flexible rotation of the bladeless wind shell relative to the support base. In addition, the rotating shaft and the rotating hole are respectively arranged on the first spherical bottom shell and the second spherical bottom shell, so that the bladeless wind shell can realize free adjustment of the up-down angle to adapt to the smoke suction demand in different cooking scenes such as hot pot and barbecue.

[0012] Further, the first sealing clamping groove is provided around the air inlet of the bladeless wind shell, and the second spherical bottom shell can be inserted into the first sealing clamping groove.

[0013] By arranging the first sealing clamping groove on the bladeless wind shell and inserting the second spherical bottom shell into the first sealing clamping groove, the sealing performance between the bladeless wind shell and the second spherical bottom shell is further enhanced, and airflow leakage is effectively prevented.

[0014] Further, a plurality of first mounting holes are arranged on the groove bottom of the first sealing clamping groove, a plurality of second mounting holes are arranged on the second spherical bottom shell, and the plurality of first mounting holes and the plurality of second mounting holes can be aligned for the threaded connecting piece to pass through the second mounting holes and the first mounting holes in sequence.

[0015] By arranging the first sealing clamping groove and the mounting holes on the second spherical bottom shell and cooperating with the threaded connecting piece, reliable connection between the bladeless wind shell and the second spherical bottom shell is realized, and the stability of the structure is enhanced.

[0016] Further, a positioning block is further arranged on the groove bottom of the first sealing clamping groove, a positioning groove is arranged on the second spherical bottom shell, and the positioning block can be inserted into the positioning groove to align the plurality of first mounting holes and the plurality of second mounting holes.

[0017] By arranging the positioning block on the groove bottom of the first sealing clamping groove and arranging the positioning groove on the second spherical bottom shell, the accurate alignment of the mounting holes is ensured, and the installation efficiency is improved. In addition, the cooperation of the positioning block and the positioning groove can effectively prevent deviation during assembly, and the assembly precision of the overall structure is improved.

[0018] Further, the number of the positioning blocks and the positioning slots is two, two positioning blocks are arranged on opposite sides of the air inlet, and the two positioning blocks can be inserted into the two positioning slots respectively.

[0019] By adopting the technical scheme, two positioning blocks and two positioning slots are arranged on opposite sides of the air inlet, so that the symmetrical design is realized, and the balance and stability of the structure are enhanced.

[0020] Further, a second sealing clamping groove is arranged on the support base, and the first spherical bottom shell can be inserted into the second sealing clamping groove.

[0021] By adopting the technical scheme, the second sealing clamping groove is arranged on the support base, and the first spherical bottom shell can be inserted into the second sealing clamping groove, so that the sealing performance between the support base and the first spherical bottom shell is further enhanced.

[0022] Further, a plurality of third mounting holes are arranged on the support base, a plurality of fourth mounting holes are arranged on the first spherical bottom shell, the plurality of third mounting holes and the plurality of fourth mounting holes can be aligned respectively, and a threaded connecting piece can pass through the third mounting holes and the fourth mounting holes in sequence.

[0023] By adopting the technical scheme, the third mounting holes and the fourth mounting holes are arranged on the support base and the first spherical bottom shell respectively, and the threaded connecting piece is used to realize the reliable connection between the support base and the first spherical bottom shell.

[0024] Further, an oil collecting pipeline is arranged on the bladeless air shell, an installation gap is arranged on the second spherical bottom shell, the oil collecting pipeline can be inserted into the installation gap, a detachable oil collecting box is arranged on the support base, and the oil collecting box and the oil collecting pipeline are connected through an oil pipe.

[0025] By adopting the technical scheme, the oil collecting pipeline is arranged on the bladeless air shell, and the installation gap is arranged on the second spherical bottom shell, so that the oil liquid can be effectively collected and treated.

[0026] Further, a first bearing seat and a second bearing seat are further included, the first bearing seat is integrally arranged with the first spherical bottom shell, the second bearing seat is detachably arranged on the first bearing seat, and the first bearing seat and the second bearing seat enclose the rotating hole.

[0027] By adopting the technical scheme, the first bearing seat and the second bearing seat are combined to enclose the rotating hole, so that the stable support of the rotating shaft is realized, and the rotating performance is improved. In addition, the detachable design of the first bearing seat and the second bearing seat makes the maintenance and replacement of the rotating hole and the rotating shaft more convenient, and the maintenance cost of the equipment is reduced.

[0028] Secondly, the present invention provides a desktop range hood, which includes any of the aforementioned rotating sealing mechanisms.

[0029] As can be seen from the above, the rotating sealing mechanism provided by this utility model achieves high-efficiency sealing performance through the sliding sealing connection structure of the first spherical bottom shell and the second spherical bottom shell, while allowing the bladeless fan shell to rotate flexibly relative to the support base. In addition, the first and second spherical bottom shells are respectively designed with a rotating shaft and a rotating hole, enabling the bladeless fan shell to freely adjust its tilt angle to adapt to the smoking needs of different cooking scenarios such as hot pot and barbecue.

[0030] Other features and advantages of this application will be set forth in the following description and will be apparent in part from the description or may be learned by practicing embodiments of this application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of a rotating sealing mechanism proposed in this utility model.

[0032] Figure 2 This is a cross-sectional structural diagram of a rotary sealing mechanism proposed in this utility model.

[0033] Figure 3 This is an exploded structural diagram of a rotary sealing mechanism proposed in this utility model.

[0034] Figure 4 This is an exploded structural diagram of a rotary sealing mechanism proposed in this utility model from another perspective.

[0035] In the attached diagram: 100, support base; 110, second sealing groove; 120, third mounting hole; 200, impeller assembly; 300, first spherical bottom shell; 310, rotating shaft; 320, rotating hole; 330, fourth mounting hole; 400, second spherical bottom shell; 430, second mounting hole; 440, positioning groove; 450, mounting notch; 500, bladeless fan casing; 510, air inlet; 520, first sealing groove; 530, first mounting hole; 540, positioning block; 550, oil collection pipe; 600, oil collection box; 700, first bearing seat; 800, second bearing seat. Detailed Implementation

[0036] Embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are intended to explain the present application, and should not be understood as limiting the present application.

[0037] The disclosure below provides many different embodiments or examples for implementing different structures of the present application. For the purpose of simplifying the present application, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can refer to the same reference numerals and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed.

[0038] The rotating sealing mechanism disclosed by the present application is mainly applied to a desktop smoke machine to collect and discharge oil smoke and peculiar smell generated in the cooking process in a desktop cooking scene (such as hot pot, barbecue, frying, etc.). The rotating sealing mechanism realizes high sealing performance through the innovative sliding sealing connection structure, and at the same time allows the flexible rotation of the bladeless wind shell relative to the supporting base.

[0039] Reference is made to the accompanying drawings Figure 1 , the accompanying Figure 2 In one embodiment, the rotating sealing mechanism includes a supporting base 100, a wind wheel assembly 200, a first spherical bottom shell 300, a second spherical bottom shell 400, and a bladeless wind shell 500. The wind wheel assembly 200 is arranged in the supporting base 100. The first spherical bottom shell 300 is arranged above the wind wheel assembly 200, and the first spherical bottom shell 300 is provided with one of a rotating shaft 310 and a rotating hole 320. The second spherical bottom shell 400 is provided with the other one of the rotating shaft 310 and the rotating hole 320, and the rotating shaft and the rotating hole are rotationally connected to form a sliding sealing connection structure between the first spherical bottom shell 300 and the second spherical bottom shell 400. The bladeless wind shell 500 is arranged on the side of the second spherical bottom shell 400 away from the supporting base 100, and the bladeless wind shell 500 is provided with an air inlet 510 facing the second spherical bottom shell 400. The high-pressure airflow generated by the wind wheel assembly 200 can be transmitted to the air inlet 510 in sequence through the first spherical bottom shell 300 and the second spherical bottom shell 400.

[0040] From the above, the rotating sealing mechanism provided by the utility model, through the sliding sealing connection structure of the first spherical bottom shell 300 and the second spherical bottom shell 400, high sealing performance is realized, and flexible rotation of the bladeless wind shell 500 relative to the supporting base 100 is allowed. In addition, the rotating shaft 310 and the rotating hole 320 are designed on the first spherical bottom shell 300 and the second spherical bottom shell 400 respectively, so that the bladeless wind shell 500 can realize free adjustment of the up-down angle to adapt to the smoke suction demand in different cooking scenes such as hot pot and barbecue.

[0041] Reference is made to the accompanying drawings Figure 3 In one embodiment, the bladeless wind shell 500 is provided with a first sealing clamping groove 520 around the air inlet 510, and the second spherical bottom shell 400 can be inserted into the first sealing clamping groove 520.

[0042] Specifically, a sealing rubber ring can be arranged in the first sealing clamping groove 520 to enhance the sealing performance.

[0043] By arranging the first sealing clamping groove 520 on the bladeless wind shell 500, the second spherical bottom shell 400 can be inserted thereinto, and the sealing performance between the bladeless wind shell 500 and the second spherical bottom shell 400 is further enhanced, so that air leakage is effectively prevented.

[0044] In one embodiment, a plurality of first mounting holes 530 are arranged on the groove bottom of the first sealing clamping groove 520, a plurality of second mounting holes 430 are arranged on the second spherical bottom shell 400, and the plurality of first mounting holes 530 and the plurality of second mounting holes 430 can be aligned respectively so that the threaded connecting pieces pass through the second mounting holes 430 and the first mounting holes 530 in sequence.

[0045] By the mounting holes on the first sealing clamping groove 520 and the second spherical bottom shell 400 and the threaded connecting pieces, reliable connection between the bladeless wind shell 500 and the second spherical bottom shell 400 is realized, and the stability of the structure is enhanced.

[0046] In one embodiment, a positioning block 540 is further arranged on the groove bottom of the first sealing clamping groove 520, a positioning groove 440 is arranged on the second spherical bottom shell 400, and the positioning block 540 can be inserted into the positioning groove 440 so that the plurality of first mounting holes 530 and the plurality of second mounting holes 430 are aligned.

[0047] By arranging the positioning block 540 on the groove bottom of the first sealing clamping groove 520 and arranging the positioning groove 440 on the second spherical bottom shell 400, the accurate alignment of the mounting holes is ensured, and the installation efficiency is improved. In addition, the cooperation of the positioning block 540 and the positioning groove 440 can effectively prevent deviation during assembly, and the assembly precision of the overall structure is improved.

[0048] In one of the embodiments, the number of the positioning blocks 540 and the positioning slots 440 is two, and the two positioning blocks 540 are arranged on the opposite sides of the air inlet 510, and the two positioning blocks 540 can be inserted into the two positioning slots 440 respectively.

[0049] By adopting the above technical scheme, the two positioning blocks 540 and the positioning slots 440 are arranged on the opposite sides of the air inlet 510, and the symmetrical design is realized, and the balance and stability of the structure are enhanced.

[0050] Referring to the accompanying drawings Figure 2 , the accompanying drawings Figure 4 In one of the embodiments, the oil collecting pipeline 550 is further arranged on the bladeless air shell 500, the mounting gap 450 is arranged on the second spherical bottom shell 400, the oil collecting pipeline 550 can be inserted into the mounting gap 450, the detachable oil collecting box 600 is arranged on the supporting base 100, and the oil collecting box 600 and the oil collecting pipeline 550 are connected through an oil pipe.

[0051] By adopting the above technical scheme, the oil collecting pipeline 550 is arranged on the bladeless air shell 500, and the mounting gap 450 is arranged on the second spherical bottom shell 400, and the effective collection and treatment of the oil are realized.

[0052] Referring to the accompanying drawings Figure 4 In one of the embodiments, the second sealing clamping groove 110 is arranged on the supporting base 100, and the first spherical bottom shell 300 can be inserted into the second sealing clamping groove 110.

[0053] Specifically, a sealing rubber ring can be arranged in the second sealing clamping groove 110 to enhance the sealing performance.

[0054] By adopting the above technical scheme, the second sealing clamping groove 110 is arranged on the supporting base 100, and the first spherical bottom shell 300 can be inserted into the second sealing clamping groove 110, and the sealing performance between the supporting base 100 and the first spherical bottom shell 300 is further enhanced.

[0055] In one of the embodiments, a plurality of third mounting holes 120 are arranged on the supporting base 100, a plurality of fourth mounting holes 330 are arranged on the first spherical bottom shell 300, the plurality of third mounting holes 120 and the plurality of fourth mounting holes 330 can be aligned respectively, and a threaded connecting piece can pass through the third mounting holes 120 and the fourth mounting holes 330 in sequence.

[0056] By adopting the above technical scheme, the third mounting holes 120 and the fourth mounting holes 330 are arranged on the supporting base 100 and the first spherical bottom shell 300 respectively, and the threaded connecting piece is matched, and the reliable connection between the supporting base 100 and the first spherical bottom shell 300 is realized.

[0057] In one of the embodiments, the first bearing seat 700 is integrally formed with the first spherical bottom shell 300, and the second bearing seat 800 is detachably arranged on the first bearing seat 700, and the first bearing seat 700 and the second bearing seat 800 enclose the rotating hole.

[0058] By the combination of the first bearing seat 700 and the second bearing seat 800, the rotating hole is enclosed, the stable support of the rotating shaft is realized, and the rotating performance is improved.

[0059] In the second aspect, the utility model provides a kind of desktop range hood, including the rotating sealing mechanism of any above.

[0060] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the described embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0061] The above is only some embodiments of the utility model. For ordinary skilled in the art, without departing from the creative concept of the utility model, a number of variations and improvements can be made, which belong to the protection scope of the utility model.

Claims

1. A rotary seal mechanism, characterized by, The utility model relates to a support base (100) is provided with, wind wheel assembly (200) is provided with in support base (100) inside, first spherical bottom shell (300) is provided with in wind wheel assembly (200) top, first spherical bottom shell (300) is provided with rotation axis (310) and one of rotation hole (320), second spherical bottom shell (400) is provided with the other one of rotation axis (310) and rotation hole (320), rotation axis (310) is connected with rotation hole (320) rotation, to make first spherical bottom shell (300) and second spherical bottom shell (400) between form sliding seal connection structure, bladeless wind shell (500) is provided with in second spherical bottom shell (400) away from support base (100) one side, bladeless wind shell (500) is provided with air inlet (510) towards second spherical bottom shell (400), the high pressure airflow that wind wheel assembly (200) generates can be transmitted to air inlet (510) in proper order through first spherical bottom shell (300), second spherical bottom shell (400). The utility model relates to a support base (100) is provided with, wind wheel assembly (200) is provided with in support base (100) inside, first spherical bottom shell (300) is provided with in wind wheel assembly (200) top, first spherical bottom shell (300) is provided with rotation axis (310) and one of rotation hole (320), second spherical bottom shell (400) is provided with the other one of rotation axis (310) and rotation hole (320), rotation axis (310) is connected with rotation hole (320) rotation, to make first spherical bottom shell (300) and second spherical bottom shell (400) between form sliding seal connection structure, bladeless wind shell (500) is provided with in second spherical bottom shell (400) away from support base (100) one side, bladeless wind shell (500) is provided with air inlet (510) towards second spherical bottom shell (400), the high pressure airflow that wind wheel assembly (200) generates can be transmitted to air inlet (510) in proper order through first spherical bottom shell (300), second spherical bottom shell (400). The first sealing clamping groove (520) is provided with a plurality of first mounting holes (530) on the groove bottom, and a plurality of second mounting holes (430) are provided on the second spherical bottom shell (400), and the plurality of first mounting holes (530) and the plurality of second mounting holes (430) can be aligned respectively, so that threaded connections pass through the second mounting holes (430) and the first mounting holes (530) in sequence. The first sealing clamping groove (520) is further provided with a positioning block (540) on the groove bottom, and a positioning groove (440) is provided on the second spherical bottom shell (400), and the positioning block (540) can be inserted into the positioning groove (440), so that the plurality of first mounting holes (530) and the plurality of second mounting holes (430) are aligned. The number of the positioning block (540) and the positioning groove (440) is two, two positioning blocks (540) are arranged on opposite sides of the air inlet (510), and two positioning blocks (540) can be inserted into two positioning grooves (440) respectively. The support base (100) is provided with a second sealing clamping groove (110), and the first spherical bottom shell (300) can be inserted into the second sealing clamping groove (110).

2. A rotary seal mechanism according to claim 1, wherein The support base (100) is provided with a plurality of third mounting holes (120), and a plurality of fourth mounting holes (330) are provided on the first spherical bottom shell (300), and the plurality of third mounting holes (120) and the plurality of fourth mounting holes (330) can be aligned respectively, so that threaded connections pass through the third mounting holes (120) and the fourth mounting holes (330) in sequence.

3. A rotary seal mechanism according to claim 2, wherein ​ 4. A rotary seal mechanism according to claim 3, wherein ​ 5. A rotary seal mechanism according to claim 4, wherein ​ 6. A rotary seal mechanism according to claim 1, wherein ​ 7. A rotary seal mechanism according to claim 6, wherein ​ 8. A rotary seal mechanism according to claim 1, wherein The bladeless wind shell (500) is further provided with an oil collecting pipeline (550), the second spherical bottom shell (400) is provided with a mounting gap (450), the oil collecting pipeline (550) can be inserted into the mounting gap (450), and the supporting base (100) is provided with a detachable oil collecting box (600), and the oil collecting box (600) and the oil collecting pipeline (550) are connected through an oil pipe.

9. A rotary seal mechanism according to claim 1, wherein Further comprising a first bearing seat (700) and a second bearing seat (800), the first bearing seat (700) is integrally arranged with the first spherical bottom shell (300), and the second bearing seat (800) is detachably arranged on the first bearing seat (700), and the first bearing seat (700) and the second bearing seat (800) enclose the rotating hole (320).

10. A table top smoke machine characterized by, The rotating sealing mechanism comprises the rotating sealing mechanism according to any one of claims 1-9.

Images