Quick connecting structure and cleaning brush

Abstract

The utility model discloses a quick connecting structure, which relates to the field of mechanical connecting structures, and comprises a first connecting piece and a second connecting piece, the first connecting piece is provided with a connecting convex part, the second connecting piece is provided with a connecting groove, and the connecting convex part is matched with the connecting groove; one of the connecting convex part and the connecting groove extends in the circumferential direction and is provided with a limiting ring groove, the other one of the connecting convex part and the connecting groove is provided with a limiting buckle, and the limiting buckle is matched with the limiting ring groove; one of the connecting convex part and the connecting groove is provided with a limiting convex rib extending in the axial direction, the peripheral side of the other one of the connecting convex part and the connecting groove is provided with a plurality of limiting vertical grooves extending in the axial direction, and the side, facing the limiting convex rib, of each limiting vertical groove is open; and the limiting convex rib is matched with any one of the limiting vertical grooves. The connecting structure has the advantages of being rapid and convenient to connect and small in angle limitation during connection.

Description

Technical Field

[0001] The utility model relates to the field of mechanical connection structures, in particular to a quick connection structure and a cleaning brush. Background Art

[0002] In some tools and equipment, two components need to be connected through a connection structure. A plug-in connection is a common connection method, in which two components are fixed by a protrusion and a groove and a snap-fit structure to achieve detachable fixation.

[0003] For example, Chinese utility model patent publication number CN220876206U discloses an electric cleaning brush comprising a brush head assembly and a body assembly, which are connected via a quick-connect mechanism. Specifically, the brush head assembly in this patent comprises a brush head and a connecting sleeve, which is fixed to the body assembly. The connecting sleeve is provided with a brush head connecting portion, which is hollow and has a slot on its sidewall. The brush head is provided with a protrusion that plugs into the brush head connecting portion, and a clamping block is provided on the outside of the protrusion that engages with the slot. When the protrusion on the brush head is inserted into the brush head connecting portion, the clamping block engages with the slot to connect the brush head to the connecting sleeve.

[0004] In the aforementioned electric cleaning brush, to ensure synchronous rotation of the brush head and the connecting sleeve, at least one inner wall of the brush head connecting portion is flat to restrict the brush head from rotating relative to the brush head connecting portion. This arrangement requires the brush head and the brush head connecting portion to be aligned at a specific angle, which is inconvenient for users. Summary of the Invention

[0005] In order to solve the defect of inconvenient connection of the connection structure in the prior art, the utility model provides a quick connection structure and a cleaning brush.

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

[0007] According to a first aspect of the present invention, a quick connection structure is provided, comprising a first connection member and a second connection member, wherein the first connection member is provided with a connection protrusion, and the second connection member is provided with a connection groove, wherein the connection protrusion is adapted to fit into the connection groove;

[0008] One of the connecting protrusion and the connecting groove is provided with a limiting ring groove extending in the circumferential direction, and the other of the connecting protrusion and the connecting groove is provided with a limiting buckle, and the limiting buckle cooperates with the limiting ring groove to axially limit the connecting protrusion in the connecting groove;

[0009] One of the connecting protrusion and the connecting groove is provided with a limiting rib extending in the axial direction, and the circumferential side of the other of the connecting protrusion and the connecting groove is provided with a plurality of limiting vertical grooves extending in the axial direction, and the limiting vertical grooves are open toward one side of the limiting rib, and the limiting rib is adapted to any of the limiting vertical grooves.

[0010] In this embodiment, the quick connection structure is configured to quickly connect a first connector to a second connector, thereby enabling quick connection of a component having the first connector and the second connector. Specifically, the first connector is provided with a connecting protrusion, and the second connector is provided with a connecting groove adapted to the connecting protrusion. The connecting protrusion and the connecting groove are engaged with each other to radially limit the first connector and the second connector, and the first connector and the second connector are axially limited by the engagement of the limiting buckle and the limiting ring groove. The limiting rib and the limiting vertical groove cooperate to circumferentially limit the first connector and the second connector. When the connecting protrusion is inserted into the connecting groove, the housing realizes connection between the first connector and the second connector, and the connection is convenient and quick. In particular, a plurality of limiting vertical grooves are arranged circumferentially, and the limiting ribs are adapted to any of the limiting vertical grooves. When the connecting protrusion is aligned with the connecting groove at various angles, the limiting ribs and the limiting vertical grooves can be engaged, thereby achieving connection between the first connector and the second connector, reducing the angle restriction when connecting the first connector and the second connector, and facilitating user operation.

[0011] Furthermore, the end of the limiting rib facing the limiting vertical groove has a first guiding arc surface, and the opening of the end of the limiting vertical groove facing the limiting rib is formed with a second guiding arc surface.

[0012] In this solution, a first guide arc surface and a second guide arc surface are respectively provided at the opening of the limiting rib and the limiting vertical groove to guide the limiting rib during the process of inserting the connecting protrusion into the connecting groove, so that the limiting rib can be inserted into the limiting vertical groove more smoothly.

[0013] Furthermore, the second guide arc surfaces at the openings of two adjacent vertical limiting grooves extend closely to each other.

[0014] In this solution, at the openings of two adjacent limiting vertical grooves, two second guide arc surfaces extend closely together, that is, all the second guide arc surfaces are connected closely together in sequence, so that no matter at what angle the connecting protrusion is inserted into the connecting groove, the limiting rib can be offset against the second guide arc surface, and then inserted into the limiting vertical groove under the action of the second guide arc surface, thereby further facilitating the user to connect the first connecting member and the second connecting member.

[0015] Furthermore, along a direction approaching the connecting groove, the second guide arc surface is inclined inwardly.

[0016] In this solution, the second guide arc surface is inclined inwardly in a direction close to the connecting groove, so that the limiting rib is guided by the second guide arc surface and inserted into the limiting vertical groove.

[0017] Furthermore, a limiting boss is provided at the center of the connecting groove, and a limiting blind hole adapted to the limiting boss is opened at the center of the connecting protrusion.

[0018] In this solution, the cooperation between the limiting boss and the limiting blind hole can enhance the connection strength when the connecting protrusion and the connecting groove cooperate, and reduce the radial displacement of the connecting protrusion due to external force.

[0019] Furthermore, the connecting protrusion is in a frustum shape with a diameter gradually decreasing toward the connecting groove, and the connecting groove is in a frustum shape with a diameter gradually increasing toward the connecting protrusion.

[0020] In this solution, both the connecting protrusion and the connecting groove are in the shape of an inverted frustum, thereby facilitating the assembly of the connecting protrusion and the connecting groove, and facilitating the insertion and removal of the connecting protrusion and the connecting groove.

[0021] Furthermore, the limiting rib is arranged on the inner peripheral side of the connecting groove, and the limiting vertical groove is arranged on the outer peripheral side of the connecting protrusion; the limiting buckle is arranged in the connecting groove, and the limiting ring groove is circumferentially opened on the peripheral side of the connecting protrusion.

[0022] In this solution, a reasonable arrangement method of the limiting ribs, the limiting vertical grooves, the limiting buckles and the limiting ring grooves is provided.

[0023] Furthermore, a plurality of the limiting ribs are provided, and the distance between two adjacent limiting ribs is the same as the distance between two adjacent limiting vertical grooves.

[0024] In this embodiment, multiple retaining ribs are provided, each of which cooperates with a corresponding retaining groove to enhance the circumferential retaining strength of the connecting protrusion and the connecting groove. The distance between two adjacent retaining ribs is the same as the distance between two adjacent retaining grooves, so that the retaining ribs can be inserted into the retaining grooves synchronously.

[0025] Furthermore, the second connecting member is provided with an avoidance groove, which is provided on opposite sides of the connecting groove. The opposite sides of the connecting groove are respectively connected to the avoidance groove, and the limiting buckle is provided at the connection point between each connecting groove and the avoidance groove.

[0026] In this solution, the limiting buckle is arranged at the connection point between the connecting groove and the avoidance groove, so that the avoidance groove can provide space for the limiting buckle to deform, so that the limiting buckle can elastically deform and engage with the limiting ring groove.

[0027] According to a second aspect of the present invention, a cleaning brush is provided, comprising a main body and bristles, the cleaning brush also comprising the quick connection structure as described above, the main body being connected to one of the first connecting member and the second connecting member, and the bristles being connected to the other of the first connecting member and the second connecting member.

[0028] In this solution, the cleaning brush adopts the above-mentioned quick connection structure, so that when the bristles are connected to the main body, it is only necessary to plug the first connecting member and the second connecting member together without considering the angle alignment, and the connection is quick and convenient.

[0029] In summary, the present invention has the following beneficial effects:

[0030] In the quick connection structure of the present invention, the first connecting member and the second connecting member are radially limited by the plug-in cooperation of the connecting protrusion and the connecting groove, and the first connecting member and the second connecting member are axially limited by the snap engagement of the limiting buckle and the limiting ring groove, and the first connecting member and the second connecting member are circumferentially limited by the cooperation of the limiting rib and the limiting vertical groove, so that when the connecting protrusion is inserted into the connecting groove, the housing realizes the connection between the first connecting member and the second connecting member, and the connection is convenient and fast; there are multiple limiting vertical grooves arranged along the circumference, and the limiting ribs are adapted to any limiting vertical groove, so that when the connecting protrusion is aligned with the connecting groove at a variety of angles, the limiting ribs and the limiting vertical grooves can be matched, thereby realizing the connection between the first connecting member and the second connecting member, reducing the angle limit when the first connecting member and the second connecting member are connected, and facilitating user operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the three-dimensional structure of a quick connection structure of an embodiment of the present utility model.

[0032] Figure 2 It is a schematic diagram of the main structure of the quick connection structure of one embodiment of the present utility model.

[0033] Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle.

[0034] Figure 4 It is a schematic diagram of the exploded structure of a quick connection structure of an embodiment of the present utility model.

[0035] Figure 5 It is a schematic diagram of the three-dimensional structure of the first connecting member of an embodiment of the present utility model.

[0036] Figure 6 It is a schematic diagram of the three-dimensional structure of the second connecting member of an embodiment of the present utility model.

[0037] In the picture:

[0038] 1000, quick connection structure; 100, first connecting member; 110, connecting protrusion; 111, limiting ring groove; 112, limiting vertical groove; 113, second guide arc surface; 114, limiting blind hole; 120, retaining edge; 200, second connecting member; 210, connecting groove; 211, limiting rib; 212, first guide arc surface; 220, columnar protrusion; 230, avoidance groove; 240, limiting boss; 300, limiting buckle. DETAILED DESCRIPTION

[0039] The present invention will be further described below with reference to the accompanying drawings.

[0040] This embodiment discloses a quick connection structure 1000, referring to Figures 1 to 3 The quick connection structure 1000 includes a first connector 100 and a second connector 200. The first connector 100 is provided with a connecting protrusion 110, and the second connector 200 is provided with a connecting groove 210. The connecting protrusion 110 is adapted to the connecting groove 210, that is, the shape and size of the connecting protrusion 110 are similar to those of the connecting groove 210, so that the connecting protrusion 110 can be inserted into the connecting groove 210 to achieve the connection between the first connector 100 and the second connector 200. The quick connection structure 1000 can achieve the quick connection of components having the first connector 100 and the second connector 200 by quickly connecting the first connector 100 and the second connector 200.

[0041] The second connector 200 has a cylindrical protrusion 220 on one side facing the first connector 100, and the connecting groove 210 is formed on the cylindrical protrusion 220. A rib 120 is radially outwardly protruding from the circumference of the first connector 100. When the connecting protrusion 110 is inserted into the connecting groove 210, the rib 120 covers the cylindrical protrusion 220.

[0042] In this embodiment, the connecting protrusion 110 is truncated cone-shaped, with its diameter gradually decreasing as it approaches the connecting groove 210, while the connecting groove 210 is truncated cone-shaped, with its diameter gradually increasing as it approaches the connecting protrusion 110. Both the connecting protrusion 110 and the connecting groove 210 are inverted truncated cone-shaped, which facilitates the insertion of the connecting protrusion 110 into the connecting groove 210, facilitating the assembly of the connecting protrusion 110 and the connecting groove 210, and also facilitating the insertion and removal of the connecting protrusion 110 from the connecting groove 210.

[0043] In this embodiment, two retaining clips 300 are disposed within the connecting groove 210, and a circumferentially extending retaining ring groove 111 is disposed around the connecting protrusion 110. When the connecting protrusion 110 is inserted into the connecting groove 210, the retaining clips 300 snap into engagement with the retaining ring groove 111. Furthermore, in other embodiments, the retaining clips 300 may be connected to the connecting protrusion 110, with the retaining ring groove 111 correspondingly disposed on the inner wall of the connecting groove 210.

[0044] In this embodiment, refer to Figure 4 The cylindrical protrusion 220 is further provided with two avoidance grooves 230, which are disposed on opposite sides of the connecting groove 210. The opposite sides of the connecting groove 210 are respectively connected to the avoidance grooves 230. A limiting buckle 300 is provided at each connection point between the connecting groove 210 and the avoidance groove 230. The limiting buckle 300 is disposed at the connection point between the connecting groove 210 and the avoidance groove 230, thereby providing space for the limiting buckle 300 to deform, thereby facilitating the limiting buckle 300 to elastically deform and engage with the limiting ring groove 111.

[0045] Reference Figures 4 to 6 The outer circumference of the connecting protrusion 110 is provided with a plurality of vertical limiting grooves 112 extending along the axial direction of the connecting protrusion 110. The plurality of vertical limiting grooves 112 are evenly arranged along the circumference of the connecting protrusion 110. The inner wall of the connecting groove 210 is provided with a limiting rib 211 protruding inwardly. The limiting rib 211 extends along the axial direction of the connecting groove 210. The limiting vertical groove 112 is open toward one side of the limiting rib 211. The limiting rib 211 is compatible with any of the limiting vertical grooves 112, so that the limiting rib 211 can be inserted into the limiting vertical groove 112 and cooperate with the limiting vertical groove 112.

[0046] Furthermore, in other embodiments, the limiting rib 211 may also be disposed on the outer periphery of the connecting protrusion 110 , and the limiting vertical groove 112 may also be opened on the inner wall of the connecting groove 210 .

[0047] Thus, in this embodiment, the quick connection structure 1000 radially limits the first connector 100 and the second connector 200 by plugging and engaging the connection protrusion 110 with the connection groove 210, axially limits the first connector 100 and the second connector 200 by snapping and engaging the limiting buckle 300 with the limiting annular groove 111, and circumferentially limits the first connector 100 and the second connector 200 by engaging the limiting rib 211 with the limiting vertical groove 112. When the connection protrusion 110 is inserted into the connection groove 210, the housing realizes the connection between the first connector 100 and the second connector 200, and the connection is convenient and quick.

[0048] Among them, there are multiple limiting vertical grooves 112 arranged along the circumferential direction, and the limiting rib 211 is adapted to any limiting vertical groove 112, so that when the connecting protrusion 110 is aligned with the connecting groove 210 at various angles, the limiting rib 211 and the limiting vertical groove 112 can be matched, thereby realizing the connection between the first connecting member 100 and the second connecting member 200, reducing the angle limit when the first connecting member 100 and the second connecting member 200 are connected, and facilitating user operation.

[0049] In this embodiment, multiple retaining ribs 211 are provided. Specifically, two retaining ribs 211 are provided on opposite sides of the connecting groove 210. The distance between two adjacent retaining ribs 211 is the same as the distance between two adjacent retaining vertical grooves 112. The multiple retaining ribs 211 cooperate with corresponding retaining vertical grooves 112 to enhance the circumferential retaining strength between the connecting protrusion 110 and the connecting groove 210. The distance between two adjacent retaining ribs 211 is the same as the distance between two adjacent retaining vertical grooves 112, so that the retaining ribs 211 can be inserted into the retaining vertical grooves 112 simultaneously.

[0050] In addition, in other embodiments, the limiting rib 211 may also be provided as one or other suitable number.

[0051] Reference Figure 5 and Figure 6 The end of the limiting rib 211 facing the limiting vertical groove 112 has a first guiding arc surface 212, and the end of the limiting vertical groove 112 facing the limiting rib 211 has a second guiding arc surface 113 formed at the opening. During the insertion of the connecting protrusion 110 into the connecting groove 210, the first guiding arc surface 212 abuts against the second guiding arc surface 113, thereby guiding the limiting rib 211 and allowing it to be inserted more smoothly into the limiting vertical groove 112.

[0052] In this embodiment, the second guide arc surfaces 113 extend closely together at the openings of two adjacent vertical limiting grooves 112. That is, at the openings of two adjacent vertical limiting grooves 112, the two second guide arc surfaces 113 extend closely together, and all the second guide arc surfaces 113 are sequentially closely connected. This allows the limiting rib 211 to abut against the second guide arc surfaces 113 regardless of the angle at which the connecting protrusion 110 is inserted into the connecting groove 210, and then, under the action of the second guide arc surfaces 113, be inserted into the vertical limiting groove 112, thereby further facilitating the user's connection between the first connector 100 and the second connector 200.

[0053] In this embodiment, the second guide arc surface 113 is inclined inward along the direction close to the connecting groove 210, so that the end of the connecting protrusion 110 where the second guide arc surface 113 is set is frustum-shaped, so that the limiting rib 211 can be guided by the second guide arc surface 113 and inserted into the limiting vertical groove 112.

[0054] Reference Figure 5 and Figure 6A limiting boss 240 is protruded from the center of the connecting groove 210, and a limiting blind hole 114 is formed in the center of the connecting protrusion 110 to match the limiting boss 240. When the connecting protrusion 110 is inserted into the connecting groove 210, the cooperation between the limiting boss 240 and the limiting blind hole 114 can enhance the connection strength between the connecting protrusion 110 and the connecting groove 210, and reduce the radial displacement of the connecting protrusion 110 due to external forces. At the same time, the limiting boss 240 radially limits the connecting protrusion 110, making it difficult for external forces on the connecting protrusion 110 to be transmitted to the limiting buckle 300. As a result, the connecting protrusion 110 is unlikely to fall out of the connecting groove 210 during operation of the first connector 100 and the second connector 200.

[0055] The quick connection structure 1000 of this embodiment can be applied to various occasions, and is specifically described by way of an example in which it is applied to a cleaning brush.

[0056] The cleaning brush includes a main body, bristles, and a quick-connect structure 1000. The main body can be a handle or a housing for a motor. The main body is connected to a first connector 100, and the bristles are connected to a second connector 200. The first connector 100 and the second connector 200 enable a quick connection between the main body and the bristles. This allows the bristles to be connected to the main body by simply plugging the first connector 100 into the second connector 200, without having to consider angle alignment. This makes the connection quick and convenient.

[0057] In addition, in other embodiments, the main body may also be connected to the second connecting member 200 , and the bristles may be connected to the first connecting member 100 correspondingly.

[0058] It should be noted that the quick connection structure 1000 in this embodiment is not limited to use in this type of cleaning brush, and can also be applied to any other devices and equipment that require quick connection between two components.

[0059] The above description is only a preferred embodiment of the present invention. Therefore, any equivalent changes or modifications made according to the structure, features and principles described in the scope of the present invention patent application are included in the scope of the present invention patent application.

Claims

1. A quick connection structure, characterized in that: The quick connection structure (1000) comprises a first connection member (100) and a second connection member (200), wherein the first connection member (100) is provided with a connection protrusion (110), and the second connection member (200) is provided with a connection groove (210), wherein the connection protrusion (110) is adapted to the connection groove (210); One of the connecting protrusion (110) and the connecting groove (210) is provided with a limiting ring groove (111) extending in the circumferential direction, and the other of the connecting protrusion (110) and the connecting groove (210) is provided with a limiting buckle (300), and the limiting buckle (300) cooperates with the limiting ring groove (111) to axially limit the connecting protrusion (110) within the connecting groove (210); One of the connecting protrusion (110) and the connecting groove (210) is provided with a limiting rib (211) extending in the axial direction, and the circumferential side of the other of the connecting protrusion (110) and the connecting groove (210) is provided with a plurality of limiting vertical grooves (112) extending in the axial direction, the limiting vertical grooves (112) are open toward one side of the limiting rib (211), and the limiting rib (211) is compatible with any of the limiting vertical grooves (112).

2. A quick connection structure according to claim 1, characterized in that: The end of the limiting rib (211) facing the limiting vertical groove (112) has a first guiding arc surface (212), and the opening of the end of the limiting vertical groove (112) facing the limiting rib (211) is formed with a second guiding arc surface (113).

3. A quick connection structure according to claim 2, characterized in that: The second guide arc surfaces (113) at the openings of two adjacent limiting vertical grooves (112) extend closely together.

4. A quick connection structure according to claim 2, characterized in that: Along a direction approaching the connecting groove (210), the second guide arc surface (113) is inclined inward.

5. A quick connection structure according to claim 1, characterized in that: A limiting convex column (240) is convexly provided at the center of the connecting groove (210), and a limiting blind hole (114) adapted to the limiting convex column (240) is opened at the center of the connecting protrusion (110).

6. A quick connection structure according to claim 1, characterized in that: The connecting protrusion (110) is in the shape of a truncated cone with a diameter gradually decreasing in a direction approaching the connecting groove (210), and the connecting groove (210) is in the shape of a truncated cone with a diameter gradually increasing in a direction approaching the connecting protrusion (110).

7. A quick connection structure according to claim 1, characterized in that: The limiting rib (211) is arranged on the inner peripheral side of the connecting groove (210), and the limiting vertical groove (112) is arranged on the outer peripheral side of the connecting protrusion (110); the limiting buckle (300) is arranged in the connecting groove (210), and the limiting ring groove (111) is circumferentially opened on the peripheral side of the connecting protrusion (110).

8. A quick connection structure according to claim 1, characterized in that: A plurality of the limiting ribs (211) are provided, and the distance between two adjacent limiting ribs (211) is the same as the distance between two adjacent limiting vertical grooves (112).

9. A quick connection structure according to claim 1, characterized in that: The second connecting member (200) is provided with an avoidance groove (230), and the avoidance groove (230) is provided on two opposite sides of the connecting groove (210), and the two opposite sides of the connecting groove (210) are respectively connected to the avoidance groove (230), and one limiting buckle (300) is provided at the connection point between each connecting groove (210) and the avoidance groove (230).

10. A cleaning brush comprising a main body and bristles, characterized in that: The cleaning brush further comprises a quick connection structure (1000) as described in any one of claims 1 to 9, wherein the main body portion is connected to one of the first connector (100) and the second connector (200), and the bristles are connected to the other of the first connector (100) and the second connector (200).

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