Pressing and rotating structure and brush

Abstract

The utility model discloses a press rotation structure and brush, wherein, in press rotation structure, through set up and the shell rotation connection's button, make button swing under the action of the elastic force of press force and elastic part between first position and second position, further in turn through the fan -shaped tooth on the button and transmission assembly drive center pivot rotation, realize manual press drive, need not energization use, has simple structure, convenient to use and low manufacturing cost etc.

Description

Technical Field

[0001] This utility model belongs to the technical field of rotary drive devices, and specifically relates to a press-rotate structure and a brush. Background Technology

[0002] Most existing rotary drive devices are electrically driven, such as electric cleaning brushes and electric egg beaters. Although electric drive is more time-saving and labor-saving, it poses a risk of electric leakage, which may affect the normal use of the rotary drive device, especially when stirring conductive liquids, which may threaten personal safety. In addition, because electrically driven rotary drive devices require a power supply, they cannot be used for a long time in environments without power supply, resulting in poor convenience of use. Utility Model Content

[0003] To address the aforementioned problems, this utility model discloses a pressing and rotating structure and a brush, which overcomes or at least partially solves the problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This utility model discloses a pressing and rotating structure, including a rotating shaft assembly, a transmission assembly, a pressing assembly, and a housing;

[0006] The rotating shaft assembly includes a central rotating shaft, the lower part of which is inserted into the housing through a through hole at the upper end of the housing. The pressing assembly includes a button and an elastic element. The button is at least partially located in an opening on the side of the housing, and one end of the button is rotatably connected to the housing, allowing the button to swing between a first position and a second position. The button has fan-shaped teeth, which drive the central rotating shaft to rotate through the transmission assembly. The elastic element is disposed between the housing and the button, and the elastic element is provided with a compression preload to hold the button in the first position.

[0007] When the button is in the first position, the pressing part on the button extends out from the opening, and the end of the fan-shaped tooth away from the opening meshes with the rotating gear in the transmission assembly; when the button is in the second position, the pressing part on the button enters the opening, and the end of the fan-shaped tooth near the opening meshes with the rotating gear in the transmission assembly.

[0008] Furthermore, the transmission assembly also includes an end face gear disk and a bevel gear;

[0009] The bevel gear is fixedly sleeved on the lower end of the central rotating shaft and meshes with the end face gear disk. The end face gear disk and the rotating gear are coaxially rotatably sleeved on the first rotating shaft. The first rotating shaft is fixedly connected to the housing, and the end face gear disk and the rotating gear are connected by transmission.

[0010] Furthermore, it also includes an anti-reverse rotation component;

[0011] The anti-reverse rotation assembly includes a turntable and several drive claws. The turntable is coaxially arranged and fixedly connected to the rotating gear. Each drive claw is centrally symmetrically arranged on the outer periphery of the turntable. Each drive claw is rotatably connected to the turntable by a pin. A circular groove is opened at the center of the end face gear plate. The turntable and each drive claw are located in the circular groove. The annular groove wall of the circular groove has ratchet teeth that cooperate with the drive claws.

[0012] Furthermore, the anti-reverse rotation assembly also includes several connecting straps;

[0013] Each of the connecting strips is connected between the tips of two adjacent driving claws.

[0014] Furthermore, a receiving groove is formed on the side end face of the button away from the opening, and a flexible element is provided in the receiving groove.

[0015] Furthermore, a limiting protrusion is provided on the lower part of the side of the button away from the opening. The limiting protrusion can cooperate with the housing below the opening to limit the button from completely detaching from the opening.

[0016] Furthermore, when the button is in the second position, the pressing part of the button is flush with the housing at the location of the opening.

[0017] Furthermore, the shaft assembly also includes a first bearing and a second bearing;

[0018] The inner ring of the first bearing is fixedly sleeved on the lower part of the central rotating shaft, and the outer ring of the first bearing is fixedly connected to the housing. The inner ring of the second bearing is fixedly sleeved on the middle part of the central rotating shaft, and the outer ring of the second bearing is fixedly connected to the housing.

[0019] Furthermore, the elastic element is a torsion spring, one end of which abuts against the button and the other end of which abuts against the housing. A second rotating shaft is provided inside the housing above the opening. The second rotating shaft is fixedly connected to the housing. The upper end of the button and the torsion spring are both rotatably sleeved on the second rotating shaft. A sliding sleeve is provided between the second rotating shaft and the torsion spring.

[0020] Another aspect of this utility model discloses a brush tool, including a brush head and the aforementioned pressing and rotating structure, wherein the brush head is fixed to the upper part of the central rotating shaft.

[0021] The advantages and beneficial effects of this utility model are:

[0022] In the press-and-rotate structure of this utility model, a button is provided that is rotatably connected to the housing. Under the action of pressing force and elastic force of the elastic element, the button can swing between a first position and a second position. Then, the central rotating shaft is driven to rotate through the fan-shaped teeth on the button and the transmission component in sequence, realizing manual pressing drive. It does not require power supply, avoids the risk of leakage, and can be used for a long time in an environment without power supply. This press-and-rotate structure has the advantages of simple structure, convenient use and low manufacturing cost. Attached Figure Description

[0023] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0024] Figure 1 This is a three-dimensional structural diagram of the pressing and rotating structure when the button is in the first position in one embodiment of the present invention;

[0025] Figure 2 This is an internal structural diagram of the pressing and rotating structure when the button is in the first position in one embodiment of the present invention;

[0026] Figure 3 This is a three-dimensional structural diagram of the pressing and rotating structure when the button is in the second position in one embodiment of the present invention;

[0027] Figure 4 This is an internal structural diagram of the pressing and rotating structure when the button is in the second position in one embodiment of the present invention;

[0028] Figure 5 This is a three-dimensional structural diagram of the button in one embodiment of the present invention;

[0029] Figure 6 This is a perspective view of the anti-reverse rotation component in one embodiment of the present invention;

[0030] Figure 7 This is a top view of the anti-reverse rotation component in one embodiment of the present invention.

[0031] In the diagram: 1. Housing; 1-1. Front housing; 1-2. Rear housing; 2. Central rotating shaft; 3. Button; 4. Sector teeth; 5. Rotating gear; 6. End face gear plate; 7. Bevel gear; 8. First rotating shaft; 9. Turntable; 10. Drive claw; 11. Circular groove; 12. Ratchet; 13. Connecting belt; 14. Flexible component; 15. Limiting protrusion; 16. First bearing; 17. Second bearing; 18. Second rotating shaft; 19. Pressing part. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0033] To facilitate understanding and description of the technical solution of this application, Figure 1 The area above is called "up". Figure 1 Below is the bottom, let Figure 1 The inside is the front, let Figure 1 The outer side is the back.

[0034] The technical solutions provided by the various embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0035] One embodiment of the present invention provides a pressing and rotating structure, which includes a rotating shaft assembly, a transmission assembly, a pressing assembly, and a housing 1; wherein, a receiving cavity is formed inside the housing 1.

[0036] Specifically, such as Figures 1 to 4 As shown, the rotating shaft assembly includes a central rotating shaft 2, the upper part of which is used to connect a rotating head, such as a brush head or a stirring head, to suit different application scenarios; the upper end of the housing 1 has a through hole, and the lower part of the central rotating shaft 2 is inserted into the housing 1 through the through hole; the pressing assembly includes a button 3 and an elastic element, the side of the housing 1 has an opening, the button 3 is at least partially located in the opening, and one end of the button 3 is rotatably connected to the housing 1, allowing the button 3 to swing between a first position and a second position, such as... Figure 5 As shown, the button 3 has a fan-shaped tooth 4 and a pressing part 19. The pressing part 19 is used to provide a pressing position for the hand. During the swinging process of the button 3, the fan-shaped tooth 4 drives the central rotating shaft 2 to rotate through the transmission component, realizing the manual drive of the central rotating shaft 2. The elastic element is set between the housing 1 and the button 3. The elastic element is provided with a compression preload to keep the button 3 in the first position.

[0037] When button 3 is in the first position (see...) Figure 1 and Figure 2 (At the location of button 3), the pressing part 19 on button 3 extends from the opening, and the end of the sector tooth 4 away from the opening meshes with the rotating gear 5 in the transmission assembly; when button 3 is in the second position (see...) Figure 3 and Figure 4 (At the location of button 3), the pressing part 19 on button 3 enters the opening, and the end of the fan-shaped tooth 4 near the opening meshes with the rotating gear 5 in the transmission assembly.

[0038] The working process of this press-and-rotate structure is as follows:

[0039] When button 3 is pressed, it overcomes the elastic force of the elastic element and swings from the first position to the second position. When button 3 is not pressed, the elastic force of the elastic element causes it to swing from the second position to the first position. Due to the meshing of the sector teeth 4 and the rotating gear 5, during the swinging process, button 3 drives the rotating gear 5 to rotate through the sector teeth 4, providing driving force to the transmission component. This, in turn, drives the central shaft 2 to rotate, thereby causing the rotating head connected to the upper part of the central shaft 2 to rotate. In this way, pressing button 3 can drive the central shaft 2 to rotate without electricity, making it more convenient to use. Furthermore, the rotation speed of the central shaft 2 can be controlled in real time by changing the frequency and force of pressing button 3, thereby controlling the rotation speed of the rotating head and preventing liquid splashing caused by excessive rotation speed of the rotating head.

[0040] In summary, in the press-and-rotate structure of this embodiment, by setting a button that is rotatably connected to the housing, the button can swing between a first position and a second position under the action of pressing force and elastic force of the elastic element. Then, the central shaft is driven to rotate in sequence through the fan-shaped teeth on the button and the transmission component, realizing manual pressing drive. It does not require power supply, avoids the risk of leakage, and can be used for a long time in an environment without power supply. This press-and-rotate structure has the advantages of simple structure, convenient use and low manufacturing cost.

[0041] In this embodiment, as Figure 2 and Figure 4 As shown, the transmission assembly also includes an end face gear disk 6 and a bevel gear 7, both of which are disposed within the housing 1.

[0042] A bevel gear 7 is fixedly sleeved on the lower end of the central rotating shaft 2 and meshes with the end face teeth on the end face gear disk 6. The end face gear disk 6 and the rotating gear 5 are coaxially rotatably sleeved on the first rotating shaft 8. The first rotating shaft 8 is fixedly connected to the housing 1, and the end face gear disk 6 and the rotating gear 5 are connected by a transmission mechanism. This transmission assembly structure gives the press-rotation structure a high transmission ratio and transmission efficiency. When the rotating head is a brush head, the resulting brush tool is fully capable of covering the cleaning tasks of general containers.

[0043] In addition, the press-to-rotate structure also includes an anti-reverse rotation component, which is used to ensure that the central shaft rotates in only one direction.

[0044] like Figure 2 , Figure 4 , Figure 6 and Figure 7 As shown, the anti-reverse rotation assembly includes a turntable 9 and several drive claws 10. The turntable 9 is coaxially arranged and fixedly connected to the rotating gear 5. Each drive claw 10 is centrally symmetrically arranged on the outer periphery of the turntable 9. Each drive claw 10 is rotatably connected to the turntable 9 by a pin. The claw tip of each drive claw 10 faces clockwise. A circular groove 11 is opened at the center of the end face gear plate 6. The turntable 9 and each drive claw 10 are located in the circular groove 11. A ratchet 12 that cooperates with the drive claw 10 is formed on the annular groove wall of the circular groove 11. The tooth tip of the ratchet 12 faces counterclockwise.

[0045] When button 3 is pressed, it swings from the first position to the second position. The sector tooth 4 drives the rotating gear 5 to rotate clockwise, simultaneously causing the turntable 9 to rotate. Due to centrifugal force, the tip of the drive pawl 10 rotates towards the ratchet 12 and inserts into it, creating a transmission between the turntable 9 and the end face gear 6. This causes the end face gear 6 to rotate clockwise, which in turn drives the central shaft 2 to rotate in one direction. When button 3 is not pressed, it swings from the second position to the first position. The sector tooth 4 drives the rotating gear 5 to rotate counterclockwise, simultaneously causing the turntable 9 to rotate. Because the tips of the ratchet 12 are angled, the tip of the drive pawl 10 cannot insert into it, and no transmission can be formed between the turntable 9 and the end face gear 6. At this time, the turntable 9 rotates freely, and the central shaft 2 does not rotate. The anti-reverse rotation component ensures that the central shaft 2 rotates in one direction to meet the rotation requirements, while also reducing the burden on the elastic element by requiring only the button 3 to provide the reset force from the second position to the first position.

[0046] Furthermore, such as Figure 6 and Figure 7 As shown, the anti-reverse rotation assembly also includes several connecting belts 13, the number of which is the same as the number of drive claws 10, and the material of the connecting belts 13 can be metal or plastic.

[0047] Each connecting band 13 is connected between the tips of two adjacent drive pawls 10 to ensure that the tips of each drive pawl 10 are in a synchronous position, thereby ensuring that the tips of each drive pawl 10 can be inserted into the ratchet 12 or separated from the ratchet 12 synchronously.

[0048] Of course, in other embodiments, springs may be provided between each drive claw and the turntable to ensure that the claw tip rotates toward the ratchet.

[0049] In this embodiment, as Figure 5 As shown, a receiving groove is formed on the side end face of the button 3 away from the opening, and a flexible member 14 is provided in the receiving groove. In this way, when the button 3 swings from the first position to the second position, the side of the button 3 away from the opening will collide with the inside of the housing 1. The flexible member 14 can buffer the collision and prevent noise and vibration. The flexible member can be a rubber block or a silicone block.

[0050] And, as Figure 2 and Figure 5 As shown, a limiting protrusion 15 is provided on the lower part of the side of the button 3 away from the opening. The limiting protrusion 15 can cooperate with the housing 1 below the opening to limit the movement, that is, to ensure that the limiting protrusion 15 is always inside the housing 1, which can prevent the button 3 from completely detaching from the opening and allow the button 3 to swing to the first position at its furthest point.

[0051] In addition, such as Figure 3 and Figure 4 As shown, when button 3 is in the second position, the pressing part 19 of button 3 is flush with the housing 1 where the opening is located. In this way, when button 3 is pressed and swings to the second position, the pressing force applied by the hand is distributed between the housing 1 and button 3, avoiding the button 3 from being subjected to a large pressing force in the second position.

[0052] In this embodiment, as Figure 2 and Figure 4 As shown, the shaft assembly also includes a first bearing 16 and a second bearing 17.

[0053] The inner ring of the first bearing 16 is fixedly sleeved on the lower part of the central rotating shaft 2, and the outer ring of the first bearing 16 is fixedly connected to the housing 1. The inner ring of the second bearing 17 is fixedly sleeved on the middle part of the central rotating shaft 2, and the outer ring of the second bearing 17 is fixedly connected to the housing 1. The first bearing 16 and the second bearing 17 support the central rotating shaft 2, making the rotation of the central rotating shaft 2 more stable.

[0054] Furthermore, the elastic element is a torsion spring, with one end of the torsion spring abutting against the button and the other end abutting against the housing, such as... Figure 2 and Figure 4 As shown, a second rotating shaft 18 is provided inside the housing 1 above the opening. The second rotating shaft 18 is fixedly connected to the housing 1. The upper end of the button 3 and the torsion spring are rotatably sleeved on the second rotating shaft 18. A sliding sleeve is provided between the second rotating shaft 18 and the torsion spring. The sliding sleeve can be made of materials with wear resistance and lubricity, such as metal and polytetrafluoroethylene, to reduce the friction generated between the torsion spring and the second rotating shaft 18.

[0055] When the hand holds the housing 1 and the fingers press the button 3, only the metacarpophalangeal joints perform mechanical movements, avoiding the coordinated movement of multiple joints in the hand during traditional scrubbing work. This not only saves effort but also improves efficiency.

[0056] In addition, such as Figures 1 to 4 As shown, the housing 1 consists of a front housing 1-1 and a rear housing 1-2, which are connected and fixed together by screws or bolts. A seal is provided between the central rotating shaft 2 and the through hole to prevent liquid from entering the interior of the housing 1 through the through hole.

[0057] Another embodiment of this utility model provides a brush tool, which includes a brush head and the press-and-rotate structure described in the above embodiment. The brush head is fixed to the upper part of a central rotating shaft. This brush tool can clean everyday drinking utensils, kitchen utensils, and laboratory / industrial containers, including but not limited to cups, bottles, pots, small appliance parts, laboratory glassware, and industrial pipes. Compared to traditional cleaning brushes, the brush tool in this embodiment has higher cleaning efficiency.

[0058] The above description is merely a specific embodiment of this utility model. Under the teachings of this utility model, those skilled in the art can make other improvements or modifications based on the above embodiments. Those skilled in the art should understand that the above specific description is only to better explain the purpose of this utility model, and the scope of protection of this utility model should be determined by the scope of the claims.

Claims

1. A press and rotate structure characterized by, Includes a rotating shaft assembly, a transmission assembly, a pressing assembly, and a housing; The rotating shaft assembly includes a central rotating shaft, the lower part of which is inserted into the housing through a through hole at the upper end of the housing. The pressing assembly includes a button and an elastic element. The button is at least partially located in an opening on the side of the housing, and one end of the button is rotatably connected to the housing, allowing the button to swing between a first position and a second position. The button has fan-shaped teeth, which drive the central rotating shaft to rotate through the transmission assembly. The elastic element is disposed between the housing and the button, and the elastic element is provided with a compression preload to hold the button in the first position. When the button is in the first position, the pressing part on the button extends out from the opening, and the end of the fan-shaped tooth away from the opening meshes with the rotating gear in the transmission assembly; when the button is in the second position, the pressing part on the button enters the opening, and the end of the fan-shaped tooth near the opening meshes with the rotating gear in the transmission assembly.

2. The push-rotary structure according to claim 1, wherein The transmission assembly also includes an end face gear disk and a bevel gear; The bevel gear is fixedly sleeved on the lower end of the central rotating shaft and meshes with the end face gear disk. The end face gear disk and the rotating gear are coaxially rotatably sleeved on the first rotating shaft. The first rotating shaft is fixedly connected to the housing, and the end face gear disk and the rotating gear are connected by transmission.

3. The push-rotary structure according to claim 2, wherein It also includes an anti-reverse rotation component; The anti-reverse rotation assembly includes a turntable and several drive claws. The turntable is coaxially arranged and fixedly connected to the rotating gear. Each drive claw is centrally symmetrically arranged on the outer periphery of the turntable. Each drive claw is rotatably connected to the turntable by a pin. A circular groove is opened at the center of the end face gear plate. The turntable and each drive claw are located in the circular groove. The annular groove wall of the circular groove has ratchet teeth that cooperate with the drive claws.

4. The pressing and rotating structure according to claim 3, characterized in that, The anti-reverse rotation assembly also includes several connecting belts; Each of the connecting strips is connected between the tips of two adjacent driving claws.

5. The pressing and rotating structure according to claim 1, characterized in that, A receiving groove is formed on the side end face of the button away from the opening, and a flexible element is provided in the receiving groove.

6. The pressing and rotating structure according to claim 1, characterized in that, A limiting protrusion is provided on the lower part of the side of the button away from the opening. The limiting protrusion can cooperate with the housing below the opening to limit the button from completely detaching from the opening.

7. The pressing and rotating structure according to claim 1, characterized in that, When the button is in the second position, the pressing part of the button is flush with the housing at the location of the opening.

8. The pressing and rotating structure according to claim 1, characterized in that, The shaft assembly also includes a first bearing and a second bearing; The inner ring of the first bearing is fixedly sleeved on the lower part of the central rotating shaft, and the outer ring of the first bearing is fixedly connected to the housing. The inner ring of the second bearing is fixedly sleeved on the middle part of the central rotating shaft, and the outer ring of the second bearing is fixedly connected to the housing.

9. The pressing and rotating structure according to claim 1, characterized in that, The elastic element is a torsion spring. One end of the torsion spring abuts against the button, and the other end of the torsion spring abuts against the housing. A second rotating shaft is provided inside the housing above the opening. The second rotating shaft is fixedly connected to the housing. The upper end of the button and the torsion spring are both rotatably sleeved on the second rotating shaft. A sliding sleeve is provided between the second rotating shaft and the torsion spring.

10. A brush tool, characterized in that, It includes a brush head and the pressing and rotating structure as described in claim 1, wherein the brush head is fixed to the upper part of the central rotating shaft.

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