Pressing rotating structure and brush

Abstract

The invention discloses a pressing rotating structure and a brush. According to the pressing and rotating structure, a key rotationally connected with a shell is arranged, so that the key can swing between a first position and a second position under the action of pressing force and the elastic force of an elastic piece, then a central rotating shaft is driven to rotate through a sector gear and a transmission assembly on the key in sequence, manual pressing driving is achieved, and power-on use is not needed; the device has the advantages of simple structure, convenience in use, low manufacturing cost and the like.

Description

Technical Field

[0001] The present invention belongs to the technical field of rotary drive devices, and particularly relates to a pressing and rotating structure and a brush tool. Background Art

[0002] Most of the existing rotary drive devices are electrically driven, such as electric cleaning brushes, electric egg beaters, etc. Although electric drive rotation is more time-saving and labor-saving, there is a risk of electric leakage, which may affect the normal use of the rotary drive device. Especially when agitating conductive liquids, it may pose a threat to personal safety; moreover, since the electrically driven rotary drive device requires electrical energy supply, it cannot be used for a long time in an environment without power supply, and the convenience of use is poor. Summary of the Invention

[0003] In view of the above problems, the present invention discloses a pressing and rotating structure and a brush tool to overcome or at least partially solve the above problems.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] On the one hand, the present invention 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 the central rotating shaft 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 member, at least a part of the button is located in an opening on the side of the housing, and one end of the button is rotatably connected to the housing, so that the button can swing between a first position and a second position. A sector gear is formed on the button, and the sector gear drives the central rotating shaft to rotate through the transmission assembly. The elastic member is arranged between the housing and the button, and a compression pre-tightening force for keeping the button in the first position is provided on the elastic member;

[0007] Wherein, when the button is in the first position, the pressing part on the button extends out of the opening, and the end of the sector gear far from the opening meshes with a 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 sector gear close to the opening meshes with the rotating gear in the transmission assembly.

[0008] Further, the transmission assembly further 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 a first rotating shaft, the first rotating shaft is fixedly connected to the housing, and the end face gear disk and the rotating gear are in transmission connection.

[0010] Further, it further includes an anti-reverse rotation component;

[0011] The anti-reverse rotation component includes a turntable and a plurality of driving claws. The turntable is coaxially arranged and fixedly connected with the rotating gear. Each of the driving claws is arranged in a central symmetry on the outer periphery of the turntable. Each of the driving claws is respectively rotatably connected with the turntable through a pin. A circular groove is formed at the central position of the end face gear disk. The turntable and each of the driving claws are both located in the circular groove. Ratch teeth cooperating with the driving claws are formed on the annular groove wall of the circular groove.

[0012] Further, the anti-reverse rotation component further includes a plurality of connecting bands;

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

[0014] Further, a receiving groove is formed on the side end face of the side of the button away from the opening, and a flexible member is arranged in the receiving groove.

[0015] Further, a limiting convex block is arranged at the lower part of the side of the button away from the opening. The limiting convex block can be in limiting cooperation with the housing below the opening to prevent the button from completely disengaging from the opening.

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

[0017] Further, the rotating shaft assembly further 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, the outer ring of the first bearing is fixedly connected with 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 with the housing.

[0019] Further, the elastic member 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 arranged in the housing above the opening. The second rotating shaft is fixedly connected with 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 arranged between the second rotating shaft and the torsion spring.

[0020] On the other hand, the present invention discloses a brush tool, including a brush head and the above-mentioned pressing and rotating structure, and the brush head is fixed on the upper part of the central rotating shaft.

[0021] The advantages and beneficial effects of the present invention are:

[0022] In the pressing and rotating structure of the present invention, by providing a button rotatably connected to the housing, the button can swing between a first position and a second position under the action of a pressing force and the elastic force of an elastic member. Then, the central rotating shaft is driven to rotate in sequence through the sector gear on the button and the transmission assembly, realizing manual pressing drive. It does not require power supply, avoiding the risk of electric leakage, and can be used for a long time in a non-powered environment. This pressing and rotating structure has the advantages of simple structure, convenient use, and low manufacturing cost. Description of the Drawings

[0023] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present invention. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

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

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

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

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

[0028] Figure 5 It is a three-dimensional structure diagram of the button in an embodiment of the present invention;

[0029] Figure 6 It is a three-dimensional structure diagram of the anti-backward rotation assembly in an embodiment of the present invention;

[0030] Figure 7 It is a top view of the anti-backward rotation assembly in an embodiment of the present invention.

[0031] In the figure: 1. Housing; 1-1. Front housing; 1-2. Rear housing; 2. Central rotating shaft; 3. Button; 4. Sector gear; 5. Rotating gear; 6. End face gear disc; 7. Bevel gear; 8. First rotating shaft; 9. Turntable; 10. Driving claw; 11. Circular groove; 12. Ratchet tooth; 13. Connecting belt; 14. Flexible member; 15. Limit convex block; 16. First bearing; 17. Second bearing; 18. Second rotating shaft; 19. Pressing part. Detailed Embodiments

[0032] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0033] For ease of understanding and description of the technical solutions of this application, let Figure 1 the upper side of Figure 1 be the top, let Figure 1 the inner side of Figure 1 be the front, and let

[0034] The technical solutions provided in each embodiment of the present invention will be described in detail below in conjunction with the drawings.

[0035] In one embodiment of the present invention, a pressing and rotating structure is provided. The pressing and rotating structure includes a rotating shaft assembly, a transmission assembly, a pressing assembly, and a housing 1. Among them, a receiving cavity is formed inside the housing 1.

[0036] Specifically, as Figures 1 to 4 shown, the rotating shaft assembly includes a central rotating shaft 2. The upper part of the central rotating shaft 2 is used to connect a rotating head, such as a brush head or a stirring head, to be applicable to different application scenarios. A through hole is opened at the upper end of the housing 1, 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 key 3 and an elastic member. An opening is formed on the side of the housing 1. At least a part of the key 3 is located inside the opening, and one end of the key 3 is rotatably connected to the housing 1, enabling the key 3 to swing between a first position and a second position. As Figure 5 shown, a sector gear 4 and a pressing part 19 are formed on the key 3. The pressing part 19 is used to provide a pressing position for the hand. During the swinging of the key 3, the sector gear 4 drives the central rotating shaft 2 to rotate through the transmission assembly, realizing the manual driving of the central rotating shaft 2. The elastic member is arranged between the housing 1 and the key 3, and a compression pre-tightening force for keeping the key 3 in the first position is provided on the elastic member.

[0037] Among them, when the key 3 is in the first position (see the position of the key 3 in Figure 1 and Figure 2 ), the pressing part 19 on the key 3 extends out of the opening, and the end of the sector gear 4 far from the opening meshes with the rotating gear 5 in the transmission assembly. When the key 3 is in the second position (see the position of the key 3 in Figure 3 and Figure 4 ), the pressing part 19 on the key 3 enters the opening, and the end of the sector gear 4 close to the opening meshes with the rotating gear 5 in the transmission assembly.

[0038] The working process of the pressing and rotating structure is as follows:

[0039] When the hand presses the button 3, the button 3 overcomes the elastic force of the elastic member and swings from the first position to the second position. When the hand does not press the button 3, due to the elastic force of the elastic member, the button 3 swings from the second position to the first position. Since the sector gear 4 and the rotating gear 5 are engaged, during the swinging process of the button 3, the button 3 will drive the rotating gear 5 to rotate through the sector gear 4, providing a driving force for the transmission assembly. Furthermore, the transmission assembly drives the central rotating shaft 2 to rotate, thereby driving the rotation of the rotating head connected to the upper part of the central rotating shaft 2. In this way, by pressing the button 3, the central rotating shaft 2 can be driven to rotate without being powered on, which is more convenient to use. And the rotation speed of the central rotating shaft 2, and thus the rotation speed of the rotating head, can be controlled in real time by changing the frequency and force of pressing the button 3, avoiding liquid splashing caused by excessive rotation speed of the rotating head.

[0040] In summary, in the pressing and rotating structure of this embodiment, by setting a button rotatably connected to the housing, the button can swing between the first position and the second position under the action of the pressing force and the elastic force of the elastic member, and then drive the central rotating shaft to rotate successively through the sector gear on the button and the transmission assembly, realizing manual pressing drive, without being powered on, avoiding the risk of electric leakage, and being able to be used for a long time in a non-powered environment. This pressing and rotating structure has the advantages of simple structure, convenient use and low manufacturing cost.

[0041] In this embodiment, as Figure 2 and Figure 4 shown, the transmission assembly further includes an end face gear disk 6 and a bevel gear 7 both arranged in the housing 1.

[0042] The 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, and the first rotating shaft 8 is fixedly connected to the housing 1. The end face gear disk 6 and the rotating gear 5 are in transmission connection. The structural setting of this transmission assembly makes the pressing and rotating structure have a high transmission ratio and transmission efficiency. When the rotating head is a brush head, the formed brush can fully cover the cleaning tasks of general containers.

[0043] In addition, the pressing and rotating structure further includes an anti-reverse rotation assembly, and the anti-reverse rotation assembly is used to make the central rotating shaft rotate only in one direction.

[0044] As Figure 2 , Figure 4 , Figure 6 and Figure 7As shown in the figure, the anti-backward rotation assembly includes a turntable 9 and a number of driving claws 10. The turntable 9 is coaxially arranged and fixedly connected with the rotating gear 5. The driving claws 10 are symmetrically arranged around the outer periphery of the turntable 9. Each driving claw 10 is rotatably connected to the turntable 9 through a pin. The claw tips of the driving claws 10 face in the clockwise direction. A circular groove 11 is formed at the central position of the end face gear disk 6. The turntable 9 and the driving claws 10 are both located within the circular groove 11. Ratch teeth 12 that cooperate with the driving claws 10 are formed on the annular groove wall of the circular groove 11. The tooth tips of the ratch teeth 12 face in the counterclockwise direction.

[0045] When the button 3 is pressed, the button 3 swings from the first position to the second position. The sector gear 4 drives the rotating gear 5 to rotate clockwise, and at the same time drives the turntable 9 to rotate. Due to the centrifugal force, the claw tips of the driving claws 10 will rotate towards the ratch teeth 12 and insert into the ratch teeth 12, so as to form a transmission between the turntable 9 and the end face gear disk 6, driving the end face gear disk 6 to rotate clockwise, and further driving the central rotating shaft 2 to rotate in one direction. When the button 3 is not pressed, the button 3 swings from the second position to the first position. The sector gear 4 drives the rotating gear 5 to rotate counterclockwise, and at the same time drives the turntable 9 to rotate. Since the tooth tips of the ratch teeth 12 are inclined, the claw tips of the driving claws 10 cannot insert into the ratch teeth 12, and no transmission can be formed between the turntable 9 and the end face gear disk 6. At this time, the turntable 9 rotates idly and the central rotating shaft 2 does not rotate. The setting of this anti-backward rotation assembly can, on the one hand, ensure that the central rotating shaft 2 rotates in one direction to meet the rotation requirements, and on the other hand, enable the elastic member to only provide the restoring force for the button 3 to swing from the second position to the first position, reducing the burden on the elastic member.

[0046] Furthermore, as Figure 6 and Figure 7 shown, the anti-backward rotation assembly further includes a number of connecting bands 13. The number of connecting bands 13 is the same as the number of driving claws 10. The material of the connecting bands 13 can be metal or plastic.

[0047] Each connecting band 13 is respectively connected between the claw tips of two adjacent driving claws 10 to ensure that the claw tips of the driving claws 10 are in the same synchronous position, and further ensure that the claw tips of the driving claws 10 can be inserted into the ratch teeth 12 synchronously or separated from the ratch teeth 12 synchronously.

[0048] Of course, in other embodiments, springs can also be provided between each driving claw and the turntable to ensure that the claw tips of the driving claws rotate towards the ratch teeth.

[0049] In this embodiment, as Figure 5As shown, a receiving groove is formed on the side end surface of the side of the button 3 far 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 far away from the opening will collide with the inside of the housing 1. The setting of the flexible member 14 can buffer the collision and prevent the generation of noise and vibration; wherein, the flexible member can be a rubber block or a silica gel block.

[0050] And, as Figure 2 and Figure 5 shown, a limiting convex block 15 is provided at the lower part of the side of the button 3 far away from the opening. The limiting convex block 15 can be in limiting cooperation with the housing 1 below the opening, that is, it is ensured that the limiting convex block 15 is always located inside the housing 1, which can prevent the button 3 from completely disengaging from the opening and make the button 3 swing to the first position at most.

[0051] In addition, as Figure 3 and Figure 4 shown, when the button 3 is in the second position, the pressing part 19 of the button 3 is flush with the housing 1 at the position of the opening. In this way, when pressing the button 3 to make the button 3 swing to the second position, the pressing force applied by the hand will be shared by the housing 1 and the button 3, avoiding a large pressing force on the button 3 when it is in the second position.

[0052] In this embodiment, as Figure 2 and Figure 4 shown, the rotating shaft assembly further 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, 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 central rotating shaft 2 is supported by the first bearing 16 and the second bearing 17, making the rotation of the central rotating shaft 2 more stable.

[0054] And, the elastic member 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. As Figure 2 and Figure 4 shown, a second rotating shaft 18 is provided in 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 both 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 such as metal and polytetrafluoroethylene with wear resistance and lubricity, which is used 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 finger presses the button 3, only the metacarpophalangeal joint makes mechanical movement, avoiding the coordinated activities of multiple joints of the hand in traditional scrubbing work, which can not only save effort but also improve efficiency.

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

[0057] In another embodiment of the present invention, a brush is provided. The brush includes a brush head and the pressing and rotating structure in the above embodiment, and the brush head is fixed to the upper part of the central rotating shaft. The brush can clean daily drinking utensils, kitchen utensils and experimental / industrial containers, including but not limited to containers such as cups, bottles, pots, small household appliance accessories, experimental vessels and industrial pipes. Compared with traditional cleaning brushes, the cleaning efficiency of the brush in this embodiment is higher.

[0058] The above is only the specific implementation manner of the present invention. Under the above teaching of the present invention, those skilled in the art can make other improvements or deformations on the basis of the above embodiments. Those skilled in the art should understand that the above specific description is only a better explanation of the purpose of the present invention, and the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A pressing and rotating structure, characterized in that, It 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 the central rotating shaft 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 member, at least part of the button is located in an opening on the side of the housing, and one end of the button is rotatably connected to the housing, so that the button can swing between a first position and a second position. A sector gear is formed on the button, and the sector gear drives the central rotating shaft to rotate through the transmission assembly. The elastic member is arranged between the housing and the button, and a compression pre-tightening force for keeping the button in the first position is provided on the elastic member; Wherein, when the button is in the first position, the pressing part on the button extends out from the opening, and the end of the sector gear away from the opening meshes with a 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 sector gear close to the opening meshes with the rotating gear in the transmission assembly.

2. The pressing and rotating structure according to claim 1, wherein The transmission assembly further 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 a first rotating shaft, the first rotating shaft is fixedly connected to the housing, and the end face gear disk and the rotating gear are in transmission connection.

3. The pressing and rotating structure according to claim 2, wherein It further includes an anti-backward rotation assembly; The anti-backward rotation assembly includes a turntable and a plurality of driving claws. The turntable is coaxially arranged and fixedly connected with the rotating gear. The driving claws are arranged in a central symmetry on the outer periphery of the turntable. Each driving claw is rotatably connected to the turntable through a pin. A circular groove is formed at the central position of the end face gear disk. The turntable and each driving claw are located in the circular groove, and ratchet teeth cooperating with the driving claws are formed on the annular groove wall of the circular groove.

4. The pressing and rotating structure according to claim 3, wherein, The anti-backward rotation assembly further includes a plurality of connecting bands; Each connecting band is respectively 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 member is arranged in the receiving groove.

6. The pressing and rotating structure according to claim 1, wherein, A limiting convex block is arranged at the lower part of the side of the button away from the opening. The limiting convex block can be in limiting cooperation with the housing below the opening to prevent the button from completely disengaging from the opening.

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

8. The pressing and rotating structure according to claim 1, wherein, The rotating shaft assembly further 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, 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, wherein The elastic member 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 in 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, characterized in that, It includes a brush head and the pressing and rotating structure according to claim 1. The brush head is fixed to the upper part of the central rotating shaft.

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