Main body assembly and bottle brush

Abstract

Disclosed are a main body assembly and a bottle brush. The main body assembly is for mounting a brush rod, including: a housing provided with a through accommodation cavity with two ends open, and a first opening is configured to pass the brush rod; a liquid bottle movably provided in the accommodation cavity through a second opening, the liquid bottle includes a bottle body and a bottle cap, and an inner circumference of the bottle cap is threaded to an outer peripheral wall of the bottle body; a first connection member, one end of the first connection member is connected to a wall of the accommodation cavity; a second connection member movably provided at the bottle cap, one end of the second connection member is connected to the bottle body, and the other end is threaded to the other end of the first connection member.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims priority to Chinese Patent Application No. 202520773712.0, filed on Apr. 22, 2025, the entire contents of which are incorporated herein by reference.TECHNICAL FIELD

[0002] The present application relates to the technical field of maternal and infant products, and in particular to a main body assembly and a bottle brush.BACKGROUND

[0003] The existing manual pressing bottle brush is mainly divided into a brush head assembly and a main body assembly. The brush head assembly includes a hollow brush rod and a soft rubber brush head. The main body assembly includes a housing, a connection member and a liquid bottle. The liquid bottle includes a bottle body and a bottle cap, the liquid bottle is inserted into the housing, one end of the connection member is connected to the brush rod, and the other end is connected to the bottle body. The liquid bottle is pressed to transport the cleaning liquid outward, the cleaning liquid reaches the top area of the brush head through the connection member and the hollow brush rod, and the brush head is rotated after the brush head is inserted into the bottle to clean the inside of the bottle.

[0004] The assembly method of the liquid bottle and the housing of the existing bottle brush is generally to rotate and fix with the housing through the thread rotation. Since the bottle cap and the bottle body are also fixed by the thread rotation, when the bottle body is reversed to take the liquid bottle, there may be a risk that the bottle body and the bottle cap are separated first, resulting in the risk that the bottle cap and the connection member cannot be removed from the main body assembly.SUMMARY

[0005] The main purpose of the present application is to provide a main body assembly and a bottle brush, aiming to prevent the liquid bottle and the bottle cap of the liquid bottle from being separated by erroneous operation, causing leakage of the cleaning liquid.

[0006] In order to achieve the above purpose, the present application provides a main body assembly for mounting a brush rod, including:

[0007] a housing provided with a through accommodation cavity with two ends open, a first opening being configured for the brush rod to pass through;

[0008] a liquid bottle including a bottle body and a bottle cap and movably provided in the accommodation cavity through a second opening, an inner circumference of the bottle cap being threaded to an outer peripheral wall of the bottle body;

[0009] a first connection member with one end connected to a wall of the accommodation cavity; and

[0010] a second connection member movably provided at the bottle cap, one end of the second connection member being connected to the bottle body, the other end of the second connection member being threaded to the other end of the first connection member; the bottle body, the second connection member, and the first connection member being communicated with the first opening;

[0011] a thread pitch between the bottle body and the bottle cap is smaller than a thread pitch between the other end of the second connection member and the other end of the first connection member.

[0012] In an embodiment, a thread between the second connection member and the first connection member is a double-start thread or a multi-start thread.

[0013] In an embodiment, a surface of the first connection member facing the liquid bottle is provided with a convex rib, and an end portion of the convex rib abuts against a surface of the second connection member facing the first connection member.

[0014] In an embodiment, multiple convex ribs are provided, and the multiple convex ribs are distributed at intervals along a circumferential direction of the surface of the first connection member facing the liquid bottle.

[0015] In an embodiment, one of an outer peripheral wall of the second connection member and an inner wall of the bottle cap is provided with a guide groove extending in an axial direction, the other of the outer peripheral wall of the second connection member and the inner wall of the bottle cap is provided with a guide column extending in the axial direction, and the guide column is slidably connected in the guide groove.

[0016] In an embodiment, a first opening of the housing is recessed and extends inward to form a connection plate, an inner wall of the connection plate is configured to connect to the brush rod, and an outer wall of the connection plate is plug-in connected to an inner wall of the first connection member.

[0017] In an embodiment, the main body assembly also includes a sealing member, the sealing member is sealingly provided at the inner wall of the first connection member, and the sealing member is a hollow structure.

[0018] In an embodiment, the sealing member includes a sealing body and two sealing rings, two ends of the sealing body are open, the two sealing rings are provided at intervals at an outer wall of the sealing body, and a boss is provided to protrude from the inner wall of the first connection member along a circumferential direction of the inner wall of the first connection member; and

[0019] when the brush rod is inserted into the housing, one end of the brush rod abuts against a first sealing ring on one surface of the boss, and the other end of the second connection member abuts against a second sealing ring on the other surface of the boss.

[0020] In an embodiment, two ends of the sealing body extend to form extension portions, both of the extension portions are provided with chamfers, and two extension portions are respectively inserted into the brush rod and the second connection member.

[0021] The present application also provides a bottle brush, including a main body assembly described above; a brush rod; and a brush head;

[0022] one end of the brush rod is inserted into a housing and detachably connected to a first opening, the brush head is sleeved on the other end of the brush rod, and a bottle body, a first connection member, a second connection member, the brush rod and the brush head are communicated with each other.

[0023] The main body assembly provided in the technical solution of the present application includes a housing and a liquid bottle, and the housing and the liquid bottle are connected by a first connection member and a second connection member. The liquid bottle includes a bottle body and a bottle cap, the bottle body is filled with cleaning liquid, and the inner circumference of the bottle cap is threaded to the outer wall of the bottle body. One end of the second connection member is connected to the bottle body, and the second connection member is movably provided at the bottle cap. One end of the first connection member is connected to the inner wall of the housing, and the other end of the first connection member is threaded to the other end of the second connection member.

[0024] When in use, the bottle body is pressed, the cleaning liquid flows into the brush rod and the brush head through the second connection member and the first connection member through the first opening, and the brush head is inserted into the bottle and rotated to clean the inside of the bottle. The thread pitch between the bottle body and the bottle cap is smaller than the thread pitch between the other end of the second connection member and the other end of the first connection member. That is, the friction between the bottle body and the bottle cap is greater than the friction between the second connection member and the first connection member. When the bottle body needs to be rotated and removed, the second connection member and the first connection member are first rotated and loosened, and the liquid bottle and the second connection member are removed from the housing to replenish or replace the cleaning liquid in the liquid bottle.BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to illustrate the technical solutions in the embodiments of the present application or in the related art more clearly, the following briefly introduces the accompanying drawings required for the description of the embodiments or the related art. Obviously, the drawings in the following description are only part of embodiments of the present application. For those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without any creative effort.

[0026] FIG. 1 is a schematic structural view of a bottle brush according to an embodiment of the present application.

[0027] FIG. 2 is a schematic cross-sectional view of the bottle brush according to an embodiment of the present application.

[0028] FIG. 3 is a partial enlarged view at portion A in FIG. 2.

[0029] FIG. 4 is an exploded view of the bottle brush according to an embodiment of the present application.

[0030] FIG. 5 is a schematic structural view of a first connection member, a second connection member and a bottle cap of the bottle brush according to an embodiment of the present application.

[0031] The realization of the objective, functional characteristics, and advantages of the present application are further described in conjunction with embodiments and with reference to the accompanying drawings.DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The technical solutions of the embodiments of the present application will be described in more detail below with reference to the accompanying drawings. It is obvious that the embodiments to be described are only some rather than all of the embodiments of the present application. All other embodiments obtained by persons skilled in the art based on the embodiments of the present application without creative efforts shall fall within the scope of the present application.

[0033] It should be noted that if there are directional indications, such as up, down, left, right, front, back, etc., involved in the embodiments of the present application, the directional indications are only used to explain a certain posture as shown in the accompanying drawings. If the specific posture changes, the directional indication also changes accordingly.

[0034] In addition, if there are descriptions related to “first”, “second”, etc. in the embodiments of the present application, the descriptions of “first”, “second”, etc. are only for the purpose of description, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature delimited with “first”, “second” may expressly or implicitly include at least one of that feature. Besides, the meaning of “and / or” appearing in the present application includes three parallel scenarios. For example, “A and / or B” includes only A, or only B, or both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization by those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of such technical solutions does not exist or fall within the scope of the present application.

[0035] The existing manual pressing bottle brush is mainly divided into a brush head assembly and a main body assembly. The brush head assembly includes a hollow brush rod and a soft rubber brush head. The main body assembly includes a housing, a connection member and a liquid bottle. The liquid bottle includes a bottle body and a bottle cap, the liquid bottle is inserted into the housing, one end of the connection member is connected to the brush rod, and the other end is connected to the bottle body. The liquid bottle is pressed to transport the cleaning liquid outward, the cleaning liquid reaches the top area of the brush head through the connection member and the hollow brush rod, and the brush head is rotated after the brush head is inserted into the bottle to clean the inside of the bottle.

[0036] The assembly method of the liquid bottle and the housing of the existing bottle brush is generally to be fixed with the housing by thread rotation. Since the bottle cap and the bottle body are also fixed by thread rotation, when the bottle body is reversed to take the liquid bottle, there may be a risk that the bottle body and the bottle cap are separated first, resulting in the risk that the bottle cap and the connection member cannot be removed from the main body assembly.

[0037] The present application provides a main body assembly and a bottle brush, aiming to prevent the liquid bottle and the bottle cap of the liquid bottle from being separated by erroneous operation, causing leakage of the cleaning liquid.

[0038] Please refer to FIGS. 1 to 5, in an embodiment of the present application, the main body assembly 10 is used to mount the brush rod20. The main body assembly 10 includes a housing 1, a liquid bottle 2, a first connection member 3 and a second connection member 4. The housing 1 is provided with a through accommodation cavity 11 with two ends open, and the first opening 12 is used for the brush rod 20 to pass through. The liquid bottle 2 is movably provided in the accommodation cavity 11 through the second opening 13. The liquid bottle 2 includes a bottle body 21 and a bottle cap 22. The inner circumference of the bottle cap 22 is threaded to the outer peripheral wall of the bottle body 21, and one end of the first connection member 3 is connected to the wall of the accommodation cavity 11. The second connection member 4 is movably provided at the bottle cap 22, one end of the second connection member 4 is connected to the bottle body 21, and the other end of the second connection member 4 is threaded to the other end of the first connection member 3. The bottle body 21, the second connection member 4, and the first connection member 3 are communicated with the first opening 12. The thread pitch between the bottle body 21 and the bottle cap 22 is smaller than the thread pitch between the other end of the second connection member 4 and the other end of the first connection member 3.

[0039] In this embodiment, the main body assembly 10 is made of hard plastic material, which is light, durable and not easy to rust, and it can also be made of light metal material, such as aluminum alloy. One end of the first connection member 3 is connected to the housing 1, and the specific connection method can be plug-in or ultrasonic fixation. In an embodiment, the liquid bottle 2 is a common liquid bottle 2 with a pump body on the market that can press the pump body to squeeze out foam. The second connection member 4 is connected to the pump body and is slidably connected to the inner wall of the bottle cap 22, which prevents the second connection member 4 from being deflected.

[0040] The main body assembly 10 provided in the technical solution of the present application includes a housing 1 and a liquid bottle 2, and the housing 1 and the liquid bottle 2 are connected by a first connection member 3 and a second connection member 4. The liquid bottle 2 includes a bottle body 21 and a bottle cap 22, the bottle body 21 is filled with cleaning liquid, and the inner circumference of the bottle cap 22 is threaded to the outer wall of the bottle body 21. One end of the second connection member 4 is connected to the bottle body 21, and the second connection member 4 is movably arranged in the bottle cap 22. One end of the first connection member 3 is connected to the inner wall of the housing 1, and the other end of the first connection member 3 is threaded to the other end of the second connection member 4.

[0041] When in use, the bottle body 21 is pressed, and the cleaning liquid flows into the brush rod 20 and the brush head 30 through the second connection member 4 and the first connection member 3 through the first opening 12. After the brush head 30 is inserted into the milk bottle, the brush head 30 is rotated to clean the inside of the milk bottle. The thread pitch between the bottle body 21 and the bottle cap 22 is smaller than the thread pitch between the other end of the second connection member 4 and the other end of the first connection member 3, that is, the friction between the bottle body 21 and the bottle cap 22 is greater than the friction between the second connection member 4 and the first connection member 3. When the bottle body 21 needs to be rotated and removed, the second connection member 4 and the first connection member 3 are first rotated and loosened, and the liquid bottle 2 and the second connection member 4 are removed from the housing 1; the cleaning liquid in the liquid bottle 2 is replenished or replaced, so as to prevent the bottle body 21 and the bottle cap 22 from loosening first, causing the bottle cap 22 and the second connection member 4 to be unable to be removed and the cleaning liquid in the bottle body 21 to be dumped.

[0042] In the embodiment of the present application, the thread between the second connection member 4 and the first connection member 3 is a double-start thread or a multi-start thread.

[0043] In this embodiment, in order to further reduce the friction between the second connection member 4 and the first connection member 3, the thread between the second connection member 4 and the first connection member 3 adopts a double-start thread or a multi-start thread, so that the second connection member 4 and the first connection member 3 are further loosened first, to prevent the bottle body 21 and the bottle cap 22 from loosening first, causing the bottle cap 22 and the second connection member 4 to be unable to be removed and the cleaning liquid in the bottle body 21 to be dumped.

[0044] In the embodiment of the present application, the surface of the first connection member 3 facing the liquid bottle 2 is provided with a convex rib 31, and the end of the convex rib 31 abuts against the surface of the second connection member 4 facing the first connection member 3.

[0045] In present embodiment, the surface of the first connection member 3 facing the liquid bottle 2 is provided with a convex rib 31. When the second connection member 4 is threaded to the first connection member 3, the convex rib 31 abuts against the surface of the second connection member 4 facing the first connection member 3, so that the surface contact between the second connection member 4 and the first connection member 3 is converted into a point contact between the convex rib 31 and the second connection member 4, further reducing the friction between the second connection member 4 and the first connection member 3, preventing the bottle body 21 and the bottle cap 22 from loosening first, and causing the bottle cap 22 and the second connection member 4 to be unable to be removed and the clean liquid in the bottle body 21 to be dumped. The convex rib 31 can also control the displacement distance of the bottle cap 22 and the bottle body 21 to prevent the bottle body 21 and the bottle cap 22 from being pressed too deep, causing the liquid bottle 2 to be crushed and unable to return to its original position.

[0046] In the embodiment of the present application, multiple convex ribs 31 are provided, and the multiple convex ribs 31 are distributed at intervals along the circumference of the surface of the first connection member 3 facing the liquid bottle 2.

[0047] In present embodiment, multiple convex ribs 31 are provided, and the multiple convex ribs 31 are distributed at intervals along the circumference of the first connection member 3. When the second connection member 4 is threaded to the first connection member 3, the multiple convex ribs 31 abut against the surface of the second connection member 4 facing the first connection member 3, and the balance of the first connection member 3 and the second connection member 4 after tightening is ensured through multi-point contact.

[0048] In the embodiment of the present application, one of the outer peripheral wall of the second connection member 4 and the inner wall of the bottle cap 22 is provided with a guide groove 41 extending in the axial direction, the other of the outer peripheral wall of the second connection member 4 and the inner wall of the bottle cap 22 is provided with a guide column extending in the axial direction, and the guide column is slidably connected in the guide groove 41.

[0049] In present embodiment, the second connection member 4 can make axial relative movement relative to the bottle cap 22. One of the outer peripheral wall of the second connection member 4 and the inner wall of the bottle cap 22 is provided with a guide groove 41 extending in the axial direction, and the other of the outer peripheral wall of the second connection member 4 and the inner wall of the bottle cap 22 is provided with a guide column parallel to the guide groove 41. The guide column can slide along the extension direction of the guide groove 41, thereby enabling the second connection member 4 to slide relative to the bottle cap 22, limiting the sliding direction of the second connection member 4 and preventing deflection. In addition, the cooperation between the guide column and the guide groove 41 can also play a limiting effect in the circumferential direction, preventing the second connection member 4 from rotating relative to the bottle cap 22. It can be understood that in an embodiment, multiple guide grooves 41 and multiple guide columns are provided, multiple guide grooves 41 or multiple guide columns are evenly provided at intervals along the circumferential direction of the second connection member 4, and the guide column is slidably connected in a guide groove 41.

[0050] In the embodiment of the present application, the first opening 12 of the housing 1 is recessed and extends inward to form a connection plate 121, the inner wall of the connection plate 121 is used to connect to the brush rod 20, and the outer wall of the connection plate 121 is plug-in connected to the inner wall of the first connection member 3.

[0051] In present embodiment, the first opening 12 of the housing 1 is bent and extends into the accommodation cavity 11 to form a connection plate 121, the connection plate 121 is connected around the periphery of the first opening 12, the inner wall of the connection plate 121 is used to connect to the brush rod 20, and the outer wall of the connection plate 121 is used to plug and connect to the inner wall of the first connection member 3. The brush rod 20 and the first connection member 3 are connected respectively by the connection plate 121, so that the brush rod 20 and the first connection member 3 are communicated with each other, the connection is more stable, and the connection strength of the bottle brush 100 is improved.

[0052] In the embodiment of the present application, the main body assembly 10 also includes a sealing member 5, the sealing member 5 is sealed at the inner wall of the first connection member 3, and the sealing member 5 is a hollow structure.

[0053] In present embodiment, the main body assembly 10 also includes a sealing member 5 provided in the inner wall of the first connection member 3, and the sealing member 5 is also a hollow structure. The sealing member 5 is used to seal the connection between the first connection member 3 and the second connection member 4 and the connection between the first connection member 3 and the brush rod 20, so that the cleaning foam can only enter the brush rod 20 upward through the middle, rather than entering the housing 1 through the gap, resulting in the waste of cleaning foam and insufficient cleaning foam on the brush rod 20 and the brush head 30.

[0054] In the embodiment of the present application, the sealing member 5 includes a sealing body and two sealing rings, two ends of the sealing body are open, and the two sealing rings are provided at intervals at the outer wall of the sealing body. A boss 32 is provided to protrude from the inner wall of the first connection member 3 along its circumferential direction.

[0055] When the brush rod 20 is inserted into the housing 1, one end of the brush rod 20 abuts against one surface of the first sealing ring 51 on the boss 32, and the other end of the second connection member 4 abuts against the other surface of the second sealing ring 52 on the boss 32.

[0056] In present embodiment, the sealing member 5 includes a sealing body with two ends open and two sealing rings provided at intervals on the outer peripheral wall of the sealing body. The boss 32 is provided to protrude from the inner wall of the first connection member 3, the first sealing ring 51 is located at the surface of the boss 32 facing the first opening 12, and the second sealing ring 52 is located on the surface of the boss 32 facing the second opening 13. When the brush rod 20 is inserted and mounted in the first opening 12, the end of the brush rod 20 abuts against the first sealing ring 51 on the boss 32 to seal the gap between the brush rod 20 and the first connection member 3. When the second connection member 4 is threaded to the first connection member 3, the end of the second connection member 4 abuts against the second sealing ring 52 on the boss 32 to seal the gap between the second connection member 4 and the first connection member 3; preventing the cleaning foam from entering the housing 1 through the gap, and causing the waste of cleaning foam and insufficient cleaning foam on the brush rod 20 and the brush head 30.

[0057] In the embodiment of the present application, the two ends of the sealing body extend to form extension portions 53, both of the extension portions 53 are provided with chamfers, and two extension portions 53 are respectively inserted into the brush rod 20 and the second connection member 4.

[0058] In present embodiment, the two ends of the sealing body extend to form extension portions 53, one of the extension portions 53 is inserted into the brush rod 20, and the other of the extension portions 53 is inserted into the second connection member 4, the connection is stable and the sealing performance is improved. Both extension portions 53 are provided with chamfers for convenient plug-in connection, so as to facilitate the extension portions 53 to be plugged into the brush rod 20 or the second connection member 4.

[0059] Please refer to FIGS. 1, 2 and 4, the present application also provides a bottle brush 100, the main body assembly 10, the brush rod 20 and the brush head 30 as described above, one end of the brush rod 20 is inserted into the housing 1 and is detachably connected to the first opening 12, the brush head 30 is sleeved at the other end of the brush rod 20, and the bottle body 21, the first connection member 3, the second connection member 4, the brush rod 20 and the brush head 30 are communicated with each other.

[0060] In present embodiment, one end of the brush rod 20 is inserted into the housing 1 and detachably connected to the first opening 12. The detachable connection can be plug-in or a screw button and a rotating groove can be provided to make the brush rod 20 and the housing 1 rotate and buckle. The brush head 30 is sleeved at the other end of the brush rod 20, and the bottle body 21, the first connection member 3, the second connection member 4, the brush rod 20 and the brush head 30 are communicated with one another. The cleaning liquid in the bottle body 21 enters the inside of the brush rod 20 through the second connection member 4 and the first connection member 3, and is squeezed out from the brush head 30. After the brush head 30 is inserted into the milk bottle, the brush head 30 is rotated to clean the inside of the milk bottle.

[0061] The above descriptions are only embodiments of the present application, and are not intended to limit the scope of the present application. Under the inventive concept of the present application, any equivalent structural transformations made by using the contents of the description and drawings of the present application, or direct / indirect applications in other related technical fields, are included in the scope of the present application.

Claims

1. A main body assembly for mounting a brush rod, comprising:a housing provided with a through accommodation cavity with two ends open, a first opening being configured for the brush rod to pass through;a liquid bottle comprising a bottle body and a bottle cap and movably provided in the accommodation cavity through a second opening, an inner circumference of the bottle cap being threaded to an outer peripheral wall of the bottle body;a first connection member with one end connected to a wall of the accommodation cavity; anda second connection member movably provided at the bottle cap, one end of the second connection member being connected to the bottle body, the other end of the second connection member being threaded to the other end of the first connection member; the bottle body, the second connection member, and the first connection member being communicated with the first opening;wherein a thread pitch between the bottle body and the bottle cap is smaller than a thread pitch between the other end of the second connection member and the other end of the first connection member.

2. The main body assembly according to claim 1, wherein a thread between the second connection member and the first connection member is a double-start thread or a multi-start thread.

3. The main body assembly according to claim 1, wherein a surface of the first connection member facing the liquid bottle is provided with a convex rib, and an end portion of the convex rib abuts against a surface of the second connection member facing the first connection member.

4. The main body assembly according to claim 3, wherein multiple convex ribs are provided, and the multiple convex ribs are distributed at intervals along a circumferential direction of the surface of the first connection member facing the liquid bottle.

5. The main body assembly according to claim 1, wherein one of an outer peripheral wall of the second connection member and an inner wall of the bottle cap is provided with a guide groove extending in an axial direction, the other of the outer peripheral wall of the second connection member and the inner wall of the bottle cap is provided with a guide column extending in the axial direction, and the guide column is slidably connected in the guide groove.

6. The main body assembly according to claim 1, wherein a first opening of the housing is recessed and extends inward to form a connection plate, an inner wall of the connection plate is configured to connect to the brush rod, and an outer wall of the connection plate is plug-in connected to an inner wall of the first connection member.

7. The main body assembly according to claim 6, further comprising a sealing member, wherein the sealing member is sealingly provided at the inner wall of the first connection member, and the sealing member is a hollow structure.

8. The main body assembly according to claim 7, wherein:the sealing member comprises a sealing body and two sealing rings, two ends of the sealing body are open, the two sealing rings are provided at intervals at an outer wall of the sealing body, and a boss is provided to protrude from the inner wall of the first connection member along a circumferential direction of the inner wall of the first connection member; andwhen the brush rod is inserted into the housing, one end of the brush rod abuts against a first sealing ring on one surface of the boss, and the other end of the second connection member abuts against a second sealing ring on the other surface of the boss.

9. The main body assembly according to claim 8, wherein two ends of the sealing body extend to form extension portions, both of the extension portions are provided with chamfers, and two extension portions are respectively inserted into the brush rod and the second connection member.

10. A bottle brush, comprising:the main body assembly according to claim 1;a brush rod; anda brush head;wherein one end of the brush rod is inserted into a housing and detachably connected to a first opening, the brush head is sleeved on the other end of the brush rod, and a bottle body, a first connection member, a second connection member, the brush rod and the brush head are communicated with each other.

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