A hand-kneading rotating device
The design of the hand-kneading rotating device allows users to operate the salad spinner with one hand, solving the problem of inconvenience in two-handed operation and improving the stability and ease of operation of the spinner.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO SHIJIA SANITARY WARE
- Filing Date
- 2025-05-23
- Publication Date
- 2026-05-26
Smart Images

Figure CN224269106U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of kitchen utensils technology, and in particular to a hand-kneading rotating device that can be used in a salad spinner. Background Technology
[0002] A salad spinner, as a kitchen appliance, is mainly used to dehydrate washed fruits and vegetables. The structure of a salad spinner typically includes an outer shell, a top cover, a spin basket, and a rotating mechanism. The top cover fits onto the outer shell, the spin basket is located inside the shell, and the rotating mechanism is installed on the top cover and connected to the spin basket for transmission. The user operates the rotating mechanism to drive the spin basket to rotate, thus dehydrating the fruits and vegetables inside.
[0003] Currently, most manual salad spinners on the market require users to use both hands to spin the salad. For example, a salad spinner disclosed in Chinese invention patent application (publication number CN115868830A) requires the user to hold the top cover with one hand and repeatedly pull the pull ring on the top cover with the other hand during the spin-drying process. Similarly, a salad spinner disclosed in US invention patent application (publication number US5562025A) also requires the user to hold the outer shell or top cover with one hand and repeatedly turn the rocker arm with the other hand during the spin-drying process.
[0004] The aforementioned manual salad spinners, which require both hands to operate, not only have the drawback of being inconvenient to operate, but also affect the stability of the spinner because the user needs to control large arm movements during operation, making it easy for the spinner to tip over. Utility Model Content
[0005] The purpose of this utility model is to address the shortcomings and deficiencies of the existing technology by providing a hand-kneading rotating device with a simple and reasonable structure and convenient operation.
[0006] To achieve the above objectives, the present invention adopts the following technical solution.
[0007] A hand-operated rotating device, comprising:
[0008] The base defines the mounting position of the rotating device;
[0009] The rotating device includes:
[0010] A hand-operated rotary drive is provided, which is movably disposed relative to the base. The hand-operated rotary drive extends to include a drive operation portion. The base is provided with a base operation portion corresponding to the drive operation portion.
[0011] In single-handed operation, the driving operation part and the base operation part can be moved away from and closer to each other by pinching and opening the fingers, so as to drive the hand-pinching rotation drive to move relative to the base.
[0012] A rotating output component is connected to the hand-grip rotating drive component.
[0013] When the drive operation unit approaches or moves away from the base operation unit, the hand-squeezed rotation drive unit drives the rotation output unit to rotate unidirectionally around its own axis.
[0014] Furthermore, the upper surface of the base has a stepped groove that provides the necessary space for the drive operation part to move. The base operation part is a protruding ridge formed on the upper surface of the base, and one side surface of the base operation part defines the first side wall of the stepped groove.
[0015] Furthermore, there is always a gap between the second side wall of the stepped groove, which is away from the first side wall, and the drive operation unit.
[0016] Furthermore, the bottom surface of the stepped groove is provided with a raised rib that corresponds to and cooperates with the drive operation part.
[0017] Furthermore, the base includes an upper cover and a sealing cover, the upper cover and the sealing cover are fixedly connected and cooperate to form a receiving cavity, the hand-pinching rotation drive is disposed in the receiving cavity, the upper cover is provided with a notch for the drive operation part to extend from the receiving cavity, and the base operation part is located on the side of the notch.
[0018] Furthermore, the hand-pinching rotation drive is horizontally rotatably disposed within the accommodating cavity. When the drive operation part and the base operation part move away from or closer to each other, the hand-pinching rotation drive swings relative to the base along with the drive operation part.
[0019] Furthermore, the hand-grip rotation drive is connected to the rotation output component via a one-way transmission mechanism. The one-way transmission mechanism includes a transmission rack, a transmission gear, and a one-way bearing. The transmission rack is mounted on the hand-grip rotation drive, and the transmission gear and the rotation output component are connected in series within the accommodating cavity via a pivot. The transmission gear meshes with the transmission rack, and the one-way bearing is sleeved between the rotation output component and the transmission gear.
[0020] Furthermore, the end of the hand-grip rotation drive that is away from the drive operation part is rotatably connected to the accommodating cavity, and the transmission rack is disposed in the middle of the hand-grip rotation drive, and the transmission rack is arranged in an arc shape extending along the swing trajectory direction of the hand-grip rotation drive.
[0021] Furthermore, the middle part of the hand-operated rotary drive component is provided with a clearance space corresponding to the transmission gear.
[0022] Furthermore, the drive operation unit is provided with an operation slot into which a finger can be inserted.
[0023] The beneficial effects of this utility model are as follows:
[0024] This utility model provides a hand-operated rotating device suitable for salad dehydrators. By extending a driving operation part from the hand-operated rotating drive component and setting a corresponding base operation part on the base, the driving operation part and the base operation part cooperate with each other, allowing the driving operation part and the base operation part to move away from each other and move closer together with one hand. This drives the hand-operated rotating drive component to move relative to the base, thereby driving the rotating output component that is connected to the hand-operated rotating drive component to rotate, thus realizing the dehydration operation of the salad dehydrator.
[0025] Compared to existing manual salad spinners that require two hands to operate, this invention provides a hand-operated rotary device suitable for salad spinners. During use, the user simply applies a portion of the fingers of their dominant hand to the drive mechanism and the remaining fingers to the base mechanism, manually squeezing and opening the mechanism to move the drive and base away from each other, thus controlling the spinner's rotation. This single-handed design is not only convenient and quick to operate, but also eliminates the need for significant arm movements, improving the spinner's stability and preventing tipping during use. Attached Figure Description
[0026] Figure 1 This is an exploded view of the overall structure of the hand-kneading rotating device described in this utility model.
[0027] Figure 2 This is a schematic diagram of the assembly structure of the output rotating component, transmission gear and one-way bearing in a hand-kneading rotating device according to the present invention.
[0028] Figure 3 This is a schematic diagram of the structure of a salad dehydrator equipped with the hand-kneading and rotating device described in this utility model. Figure 1 .
[0029] Figure 4 This is a schematic diagram of the structure of a salad dehydrator equipped with the hand-kneading and rotating device described in this utility model. Figure 2 .
[0030] Figure 5 This is an exploded structural diagram of a salad dehydrator equipped with the hand-kneading and rotating device described in this utility model.
[0031] Figures 1 to 5 middle:
[0032] 1. Base;
[0033] 11. Top cover;
[0034] 111. Base operating part; 112. Step groove; 1121. First side groove wall; 1122. Second side groove wall; 1123. Groove bottom surface; 1124. Protruding rib; 113. Notch;
[0035] 12. Cap;
[0036] 2. Hand-operated rotary drive component; 21. Drive operation unit; 211. Operation slot;
[0037] 3. Rotating output component; 31. Settling tank;
[0038] 41. Rack and pinion; 42. Gear; 43. One-way bearing; 44. Pivot;
[0039] 5. Outer casing;
[0040] 6. Dehydration basket. Detailed Implementation
[0041] The present invention will be further described below with reference to the accompanying drawings.
[0042] like Figures 1 to 5 The illustrated hand-operated rotating device is applicable to salad spinners. Its structure includes a base 1, which provides the necessary installation space for the rotating device, defining its installation position. In a specific embodiment, see [link to specific embodiment]. Figures 3 to 5 The base 1 is installed on the outer shell 5 of the salad dehydrator. When the salad dehydrator is performing dehydration, the base 1 and the outer shell 5 remain relatively stationary.
[0043] The rotating device includes a hand-operated rotating drive 2, which is movably disposed relative to the base 1. The hand-operated rotating drive 2 extends to a drive operation part 21. The base 1 is provided with a base operation part 111 corresponding to the drive operation part 21. Using the base 1 as a reference, under external force, the drive operation part 21 can move closer to and further away from the base operation part 111. During their relative movement, the hand-operated rotating drive 2 moves synchronously with the drive operation part 21. The maximum distance between the drive operation part 21 and the base operation part 111 is within the reach of an average adult's single hand. That is, under single-handed operation, the user can move the drive operation part 21 and the base operation part 111 closer to and further away from each other by pinching and opening their fingers, thereby driving the hand-operated rotating drive 2 to move relative to the base 1. Preferably, the drive operation part 21 is provided with an operation groove 211 into which fingers can be inserted. During operation, the user can insert the corresponding fingers into the operation groove 211 to conveniently perform the pinching action.
[0044] The rotating device also includes a rotating output component 3, which is connected to the hand-squeezing rotating drive component 2. In a specific embodiment, the rotating output component 3 is directly or indirectly connected to the dehydration basket 6 of the salad dehydrator. When the drive operation unit 21 approaches or moves away from the base operation unit 111, the hand-squeezing rotating drive component 2 drives the rotating output component 3 to rotate unidirectionally around its own axis, thereby causing the dehydration basket 6 to maintain unidirectional rotation for dehydration. That is, when the user controls the drive operation unit 21 to move relative to the base operation unit 111, the hand-squeezing rotating drive component 2 will only drive the rotating output component 3 to rotate in a certain direction of movement. When the hand-squeezing rotating drive component 2 moves in the opposite direction to that direction, the hand-squeezing rotating drive component 2 will not drive the rotating output component 3 to rotate. In this embodiment, in order to make operation more convenient and labor-saving and to conform to ergonomic design, when the drive operation unit 21 moves toward the base operation unit 111, the hand-squeezed rotation drive 2 drives the rotation output unit 3 to rotate around its own axis. However, when the drive operation unit 21 moves away from the base operation unit 111, the hand-squeezed rotation drive 2 will not drive the rotation output unit 3 to rotate around its own axis.
[0045] In this embodiment, see Figure 1 , Figures 3 to 5The upper surface of the base 1 has a stepped groove 112 that provides the necessary space for the drive operation part 21 to move. The base operation part 111 is a raised ridge formed on the upper surface of the cover 11 of the base 1. One side surface of the base operation part 111 defines the first side wall 1121 of the stepped groove 112. The second side wall 1122 of the stepped groove 112, which is away from the first side wall 1121, always has a gap with the drive operation part 21 to facilitate user operation. The stepped groove 112 provides the space required for the movement of the drive operation part 21. Taking a right-handed user as an example, when operating, the user can touch the base operation part 111 with their thumb and the drive operation part 21 with their remaining four fingers. By pinching and opening the fingers, the drive operation part 21 and the base operation part 111 move closer and further apart, thereby driving the hand-pinching rotation drive 2 to move synchronously with the drive operation part 21.
[0046] Preferably, in order to reduce the frictional resistance between the drive operation part 21 and the bottom surface 1123 of the stepped groove 112, the bottom surface 1123 of the stepped groove 112 is provided with a raised rib 1124 that corresponds to and cooperates with the drive operation part 21.
[0047] In this embodiment, see Figure 1 and Figure 5 The base 1 includes a top cover 11 and a cover 12. The top cover 11 and the cover 12 are fixedly connected and cooperate to form a receiving cavity (not shown in the figure). The hand-operated rotating drive 2 is disposed in the receiving cavity. To save the required installation space, the hand-operated rotating drive 2 is horizontally rotated in the receiving cavity. When the driving operation part 21 and the base operation part 111 move away from each other and move closer to each other, the hand-operated rotating drive 2 swings relative to the base 1 with the driving operation part 21. Of course, in other embodiments, the hand-operated rotating drive 2 can also be disposed in the receiving cavity in other ways, such as vertical installation, according to actual needs. The top cover 11 is provided with a notch 113 for the driving operation part 21 to extend from the receiving cavity. The base operation part 111 is located beside the notch 113. Specifically, in this embodiment, the stepped groove 112 is located outside the notch 113, that is, after the driving operation part 21 extends out of the notch 113, it lies horizontally on the stepped groove 112.
[0048] In this embodiment, see Figure 1 , Figure 2 and Figure 5The hand-operated rotary drive 2 is connected to the rotary output 3 via a one-way transmission mechanism. The one-way transmission mechanism includes a transmission rack 41, a transmission gear 42, and a one-way bearing 43. The transmission rack 41 is mounted on the hand-operated rotary drive 2. The transmission gear 42 and the rotary output 3 are connected in series within a receiving cavity via a pivot 44. The transmission gear 42 meshes with the transmission rack 41. The one-way bearing 43 is sleeved between the rotary output 3 and the transmission gear 42. The input end of the rotary output 3 (i.e., the end closest to the transmission gear 42) has a recess 31. The upper teeth of the transmission gear 42 mesh with the transmission rack 41. The lower end of the transmission gear 42 and the one-way bearing 43 are fitted together in the recess 31 from the inside out. When the drive operation unit 21 moves towards the base operation unit 111... Figure 3 The hand-operated rotating drive 2 transmits power to the rotating output 3 via the transmission rack 41, transmission gear 42, and one-way bearing 43, thereby driving the rotating output 3 to rotate in the forward direction, causing the dehydration basket 6 to rotate and dehydrate; when the drive operation part 21 moves away from the base operation part 111, ( Figure 4 Under the action of the one-way bearing 43, the hand-kneaded rotating drive 2 drives the transmission gear 42 to rotate in the opposite direction through the transmission rack 41, but the transmission gear 42 will not drive the rotating output 3 to rotate in the opposite direction. That is, during the dehydration operation, the rotating output 3 rotates unidirectionally around its own axis.
[0049] Preferably, see Figure 1 The end of the hand-operated rotary drive 2 furthest from the drive operation part 21 is rotatably connected to the accommodating cavity. The transmission rack 41 is located in the middle of the hand-operated rotary drive 2, making the operating lever arm of the hand-operated rotary drive 2 longer and the operation more labor-saving. The transmission rack 41 is arranged in an arc shape extending along the swing trajectory of the hand-operated rotary drive 2, so that the transmission rack 41 and the transmission gear 42 can always maintain engagement, which is beneficial to improving transmission accuracy and transmission efficiency. The middle of the hand-operated rotary drive 2 is provided with a clearance space corresponding to the transmission gear 42, which can effectively avoid mutual interference between the hand-operated rotary drive 2 and the transmission gear 42.
[0050] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.
Claims
1. A hand-operated rotating device, comprising: The base defines the mounting position of the rotating device; Its features are, The rotating device includes: A hand-operated rotary drive is provided, which is movably disposed relative to the base. The hand-operated rotary drive extends to include a drive operation portion. The base is provided with a base operation portion corresponding to the drive operation portion. In single-handed operation, the driving operation part and the base operation part can be moved away from and closer to each other by pinching and opening the fingers, so as to drive the hand-pinching rotation drive to move relative to the base. A rotating output component is connected to the hand-grip rotating drive component. When the drive operation unit approaches or moves away from the base operation unit, the hand-squeezed rotation drive unit drives the rotation output unit to rotate unidirectionally around its own axis.
2. The hand-operated rotating device according to claim 1, characterized in that: The upper surface of the base has a stepped groove that provides the necessary space for the drive operation part. The base operation part is a protruding ridge formed on the upper surface of the base. One side surface of the base operation part defines the first side wall of the stepped groove.
3. The hand-operated rotating device according to claim 2, characterized in that: There is always a gap between the second side wall of the stepped groove, which is away from the first side wall, and the drive operation unit.
4. A hand-operated rotating device according to claim 2, characterized in that: The bottom surface of the stepped groove is provided with a raised rib that corresponds to and cooperates with the drive operation part.
5. A hand-operated rotating device according to any one of claims 1 to 4, characterized in that: The base includes an upper cover and a sealing cover. The upper cover and the sealing cover are fixedly connected and cooperate to form a receiving cavity. The hand-pinching rotation drive is disposed in the receiving cavity. The upper cover is provided with a notch for the drive operation part to extend out of the receiving cavity. The base operation part is located on the side of the notch.
6. A hand-operated rotating device according to claim 5, characterized in that: The hand-pinching rotation drive is horizontally rotatably disposed within the accommodating cavity. When the drive operation part and the base operation part move away from each other and move closer to each other, the hand-pinching rotation drive swings relative to the base along with the drive operation part.
7. A hand-operated rotating device according to claim 5, characterized in that: The hand-grip rotation drive is connected to the rotation output component via a one-way transmission mechanism. The one-way transmission mechanism includes a transmission rack, a transmission gear, and a one-way bearing. The transmission rack is mounted on the hand-grip rotation drive. The transmission gear and the rotation output component are connected in series in the accommodating cavity via a pivot. The transmission gear meshes with the transmission rack. The one-way bearing is sleeved between the rotation output component and the transmission gear.
8. A hand-operated rotating device according to claim 7, characterized in that: The end of the hand-grip rotating drive that is away from the drive operation part is rotatably connected to the accommodating cavity. The transmission rack is disposed in the middle of the hand-grip rotating drive and is arranged in an arc shape extending along the swing trajectory direction of the hand-grip rotating drive.
9. A hand-operated rotating device according to claim 8, characterized in that: The hand-operated rotary drive component has a clearance space in the middle corresponding to the transmission gear.
10. A hand-operated rotating device according to claim 1, characterized in that: The drive operation unit is provided with an operation slot into which a finger can be inserted.