Cleaning brush handle with replaceable brush block

Abstract

The utility model relates to a cleaning brush handle with a replaceable brush block. The cleaning brush handle comprises a grab handle, the cleaning brush is characterized by further comprising at least two clamping arms which are located at the front end of the grab handle and extend forwards, and a space for clamping the brush block is formed between the clamping arms; the driving rod is arranged in the grab handle and can move, the driving rod is movably connected with the elastic arm, and the movement of the driving rod can drive the at least one clamping arm to be close to or away from each other. The driving rod for driving the clamping arms to open and close is arranged in the grab handle, so that the whole product can be miniaturized; besides, the opening and closing of the clamping arms are realized through the movement of the driving rod instead of only through the elasticity of the clamping arms, so that the requirement on the clamping arms is reduced; when the clamping arm is folded, the clamping arm is tightly limited by the driving rod, and even if a consumer pulls the brush head forcibly, the brush head cannot be pulled away from the clamping arm due to the fact that the acting force of the clamping arm is only on the grab handle and cannot drive the driving rod to move, and clamping is firmer.

Description

Technical Field

[0001] The utility model relates to a cleaning brush, in particular to a handle for a cleaning brush with a replaceable brush block. Background Art

[0002] Toilet brushes that are more hygienic to use and convenient to replace disposable brush heads (also called brush blocks) are becoming more and more popular among consumers. For example, the Chinese utility model with patent number CN201821298381.6 (authorization announcement number CN209090171U) discloses a toilet brush with a replaceable brush head, including a brush head and a brush handle. The brush head includes a brush head body, a connecting rod located in the middle of the back of the brush head, the connecting rod is provided with a clamping part, and the brush handle includes a rod body and a sliding sleeve. The end of the rod body has a plurality of elastic arms arranged around the connecting rod, and the inner surface of the elastic arm has a bite part corresponding to the clamping part. The bite part is engaged or released with the clamping part through the sliding sleeve that can be moved between a locking position and an unlocking position along the axis of the rod body, so that the brush head and the brush handle are connected or separated, so that the brush head can be discarded without touching the brush head, thereby avoiding the problems of repeated use of the brush head and manual cleaning, and ensuring hygienic use.

[0003] The sliding sleeve that drives the elastic arms to close is set outside the rod, resulting in a loose structure. The gap between the sliding sleeve and the rod makes it possible for the sliding sleeve to pinch your hands. During use, the aforementioned toilet brush relies solely on the elasticity of the two elastic arms to automatically pop open and cause the brush head to fall off. After long-term use, the elastic force of the elastic arms will weaken, resulting in poor brush head falling off. In addition, when the elastic arms clamp the brush head, if the consumer pulls the brush head with a little force, it is easy to pull the head end of the rod away from the sliding sleeve, resulting in an unreliable clamping. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a cleaning brush handle with a replaceable brush block having a reasonable structure, stable clamping and reliable detachment in view of the above-mentioned existing technical status.

[0005] The technical solution adopted by the utility model to solve the above-mentioned technical problems is: a handle for a cleaning brush with a replaceable brush block, comprising a gripping handle; characterized in that it also includes at least two clamping arms, which are located at the front end of the gripping handle and extend forward, and a space for clamping the brush block is formed between the clamping arms; a driving rod, which is arranged in the gripping handle and can move, the driving rod is movably connected to the elastic arm, and the movement of the driving rod can drive at least one of the clamping arms to move closer to or away from each other.

[0006] The movement may be sliding along the length direction of the handle, sliding perpendicular to the length direction of the handle, or swinging, etc., as long as the movement of the driving rod can drive at least one clamping arm to swing relative to another clamping arm, that is, at least one clamping arm is elastic. In addition, the closing of the clamping arm can fix the brush block in a clamping manner, and the opening of the clamping arm can release the brush block in a loosening manner; the opening of the clamping arm can fix the brush block in a tensioning manner, and the closing of the clamping arm can release the brush block in a tensioning manner.

[0007] As a preferred structure for the driving rod to drive the clamping arm to open and close, the driving rod can slide along the length direction of the handle, the front end of the driving rod has a driving block, the clamping arm is provided with a first guide block and a second guide block that cooperate with the driving block, and the driving block can slide between the first guide block and the second guide block. The entire driving part is hidden in the handle, and the first guide block and the second guide block both cooperate with the driving block to respectively complete the closing or opening of the clamping arm.

[0008] As another structure in which a driving rod drives the clamping arm to open and close, the driving rod can rotate, and a driving block is provided at the front end of the driving rod. The clamping arm is provided with a first guide block and a second guide block that cooperate with the driving block. The rotation of the driving rod can enable the driving block to slide on the first guide block and the second guide block.

[0009] Specifically, the cooperation between the driving block and the first guide block and the second guide block satisfies the following relationship: when the driving rod moves forward to the driving block and contacts the first guide block, the two clamping arms are in a closed state, and when the driving rod moves backward to the driving block and contacts the second guide block, the two clamping arms are in an open state; or, when the driving rod moves forward to the driving block and contacts the first guide block, the two clamping arms are in an open state, and when the driving rod moves backward to the driving block and contacts the second guide block, the two clamping arms are in a closed state. The closing and opening operations of the two operations are just opposite, and one of the operation modes can be selected according to the consumer's usage habits.

[0010] Preferably, the first guide block is arranged at a position close to the central axis in the clamping arm, and the first guide block has a guiding plane and a front giving way surface inclined from front to back toward the central axis; the second guide block is arranged at a position away from the central axis in the clamping arm, the first guide block and the second guide block are staggered, and the inner end surface of the second guide block is a rear guiding surface inclined from front to back toward the central axis; when the driving block contacts the guiding plane, the two clamping arms remain in a closed state, and when the driving block moves backward along the rear guiding surface, the driving block drives the two clamping arms away from each other.

[0011] When the driving rod moves forward, the driving block contacts the guide plane, which is equivalent to pressing the clamping arm, thereby keeping the two clamping arms firmly in the closed state. Even if the brush block is pulled out by external force, the clamping arm cannot be opened even if it is pulled hard because the force acts on the clamping arm instead of the driving rod. When the driving rod moves backward, the driving block moves backward along the rear guide surface, and under the action of the inclined surface, an outward force is applied to the clamping arm, so that the two clamping arms move away from each other. It has nothing to do with the elastic force of the clamping arm itself, which can ensure that the brush block can be separated smoothly.

[0012] In order to facilitate the molding of the first guide block and the second guide block, a further improvement is made, wherein each of the clamping arms is fixed with an embedded component, and the first guide block and the second guide block are arranged on the embedded component. The embedded component has a relatively small shape, which is conducive to molding the first guide block and the second guide block. The embedded component only needs to be assembled into the clamping arm, and the embedded component can be installed into the clamping arm by snap-fitting or other methods.

[0013] As an improvement, the inner end of the above-mentioned inner insert has a blocking portion extending inwards, which blocks the brush block, especially the brush block formed by pasting soluble cleaning paper, to prevent it from excessively entering the space between the clamping arms and affecting its use.

[0014] In order to facilitate the driving rod to slide in the handle, a linkage rod that can slide along the length direction of the handle is also provided in the handle. The driving rod is connected to the linkage rod and can slide with the linkage rod. The linkage rod is provided with a push button that exposes the handle.

[0015] As a further improvement, the front end of the clamping arm is provided with a clamping sleeve, the space for clamping the brush block is formed between the clamping sleeves, and the clamping sleeve is provided with a plurality of convex teeth for clamping the brush block. The clamping sleeve is more compact as a separate component, which is convenient for molding, especially for molding convex teeth. When in use, the clamping sleeve only needs to be installed and fixed (can be snapped) on the front end of the clamping arm. For different types of brush blocks, only different clamping sleeves need to be replaced accordingly, which reduces costs.

[0016] As a further improvement, the front end of the clamping arm is provided with a clamping sleeve, the space for clamping the brush block is formed between the clamping sleeves, a clamping portion for clamping the brush block is provided on the clamping sleeve, and a bayonet for clamping the connecting column on the brush block is provided on the clamping portion. The clamping sleeve is suitable for fixing a brush block with a connecting column.

[0017] In order to expand the use function of the handle, a clip is detachably mounted on the tail end of the handle. The clip can be removed from the tail end of the handle to clamp dirt such as hair and waste paper.

[0018] Compared with the prior art, the advantages of the utility model are: the driving rod that drives the clamping arm to open and close is arranged inside the handle, which can make the overall product more compact; in addition, the opening and closing of the clamping arm is achieved through the movement of the driving rod, rather than just opening through the elasticity of the clamping arm itself, which reduces the requirements for the clamping arm; when the clamping arm is closed, it is tightly limited by the driving rod, even if the consumer pulls the brush head hard, because its force is only on the handle and cannot drive the driving rod to move, the brush head cannot be pulled away from the clamping arm, and the clamping is more secure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the first embodiment of the utility model;

[0020] Figure 2 It is a cross-sectional view of the first embodiment of the utility model;

[0021] Figure 3 for Figure 2 A magnified image of point A;

[0022] Figure 4 This is a three-dimensional exploded view of the first embodiment of the utility model;

[0023] Figure 5 This is a schematic diagram of the three-dimensional structure of the embedded component in the first embodiment of the utility model;

[0024] Figure 6 It is a cross-sectional view of the embedded component in the first embodiment of the utility model;

[0025] Figure 7 This is a schematic diagram of the three-dimensional structure of the second embodiment of the utility model;

[0026] Figure 8 It is a schematic diagram of the three-dimensional structure of the clamping sleeve in the second embodiment of the utility model. DETAILED DESCRIPTION

[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0028] like Figures 1 to 6 Shown is the first preferred embodiment of the utility model.

[0029] A handle for a cleaning brush with a replaceable brush block comprises a handle 1.

[0030] Two clamping arms 1a are located at the front end of the handle 1 and extend forward. A space Q for clamping the brush block is formed between the clamping arms 1a. At least one clamping arm 1a is elastic, and of course it is best if both are elastic. Of course, there can also be three clamping arms 1a, which are arranged at intervals along the circumference. The clamping arms 1a are integrally formed with the handle 1, so that a long U-shaped notch is formed at the front end of the handle 1.

[0031] The driving rod 2 is arranged in the handle 1 and can slide along the length direction of the handle 1. The driving rod 2 is movably connected to the clamping arm 1a. The sliding of the driving rod 2 can drive the clamping arms 1a to move closer to each other to close the brush block, or can drive the clamping arms 1a to move away from each other to open and release the brush block.

[0032] The front end of the driving rod 2 has a driving block 21, and the clamping arm 1a is provided with a first guide block 3a and a second guide block 3b that cooperate with the driving block 21. There are two driving blocks 21, which correspond to the first guide block 3a and the second guide block 3b in each clamping arm 1a respectively, and the driving block 21 can slide between the first guide block 3a and the second guide block 3b.

[0033] The cooperation between the driving block 21 and the first guide block 3a and the second guide block 3b in this embodiment satisfies the following relationship: when the driving rod 2 moves forward until the driving block 21 contacts the first guide block 3a, the two clamping arms 1a are in a closed state, and when the driving rod 2 moves backward until the driving block 21 contacts the second guide block 3b, the two clamping arms 1a are in an open state. Of course, the reverse setting is also possible.

[0034] Specifically, the first guide block 3a is arranged at a position close to the central axis X in the clamping arm 1a, and has a guiding plane 3a1 and a front giving way surface 3a2 inclined from front to back toward the central axis X direction; the second guide block 3b is arranged at a position away from the central axis X in the clamping arm 1a, the first guide block 3a and the second guide block 3b are staggered, and the inner end surface of the second guide block 3b is a rear guiding surface 3b1 inclined from front to back toward the central axis X direction; when the driving block 21 contacts the guiding plane 3a1, the two clamping arms 1a remain in a closed state, and when the driving block 21 moves backward along the rear guiding surface 3b1, the driving block 21 drives the two clamping arms 1a away from each other.

[0035] Each of the clamping arms 1a is fixed with an inner member 3, and a first guide block 3a and a second guide block 3b are arranged on the inner member 3. The inner end of the inner member 3 has a blocking portion 31 extending inward. Of course, the first guide block 3a and the second guide block 3b can also be directly arranged in the clamping arm 1a.

[0036] A linkage rod 4 is also provided in the handle 1 and can slide along the length direction of the handle 1 . The driving rod 2 is connected to the linkage rod 4 and can slide along with the linkage rod 4 . The linkage rod 4 is provided with a push knob 5 for exposing the handle 1 .

[0037] The front end of the clamping arm 1a in this embodiment is sleeved with a clamping sleeve 6, and the space Q for clamping the brush block is formed between the clamping sleeves 6. The clamping sleeves 6 are provided with a plurality of protruding teeth 61 for clamping the brush block.

[0038] The tail end of the handle 1 is detachably provided with a clip 7. The clip 7 is mounted on the tail end of the handle 1 in a snap-fit ​​manner.

[0039] The usage process of this embodiment is:

[0040] A. Cleaning brush: To install a new brush block, first align the brush handle 1 with the brush block (not shown in the drawing), and the brush block enters the space Q between the clamping sleeves 6. Push the aforementioned push knob 5 forward, and the drive rod 2 moves forward along the linkage rod 4. The drive block 21 on the drive rod 2 slides along the front clearance surface 3a2 to the guide plane 3a1. The two drive blocks 21 correspondingly clamp the first guide blocks 3a in the two clamping arms 1a, so that the two clamping arms 1a are firmly maintained in the closed state. The brush block is clamped by the two closed clamping arms 1a, and the object can be cleaned.

[0041] B. When the cleaning brush is used up, the old brush block needs to be thrown away. First, the cleaning brush connected to the brush block is moved to align with the trash can, and the aforementioned push knob 5 is pushed up. The driving rod 2 moves backward along with the linkage rod 4, and the driving block 21 on the driving rod 2 leaves the guide plane 3a1, breaks away from the restriction of the first guide block 3a, moves backward to the starting position of the rear guide surface 3b1, and then continues to move backward along the rear guide surface 3b1. Under the cooperation of the inclined surface, the clamping arm 1a is forced to deform outward, so that the brush block falls off from between the two clamping arms 1a and falls into the trash can.

[0042] like Figure 7 , 8 Shown is the second preferred embodiment of the utility model.

[0043] The difference between this embodiment and the first embodiment is that a clamping sleeve 6 is provided at the front end of the clamping arm 1a, and the space Q for clamping the brush block is formed between the clamping sleeves 6. A clamping portion 62 for clamping the brush block is provided on the clamping sleeve 6, and a bayonet 621 for clamping a connecting column on the brush block is provided on the clamping portion 62.

[0044] It should be noted that in the description of this embodiment, the terms "front, back", "left, right", "inside, outside", "upper, lower" and the like indicating directions or positional relationships are all based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. The terms "install", "connect", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A handle for a cleaning brush with a replaceable brush block, comprising a handle (1); characterized in that: Also includes At least two clamping arms (1a) are located at the front end of the handle (1) and extend forward, and a space (Q) for clamping the brush block is formed between the clamping arms (1a); A driving rod (2) is arranged in the handle (1) and is movable. The driving rod (2) is movably connected to the clamping arm (1a). The movement of the driving rod (2) can drive at least one of the clamping arms (1a) to move closer to or farther from each other.

2. The cleaning brush handle with replaceable brush block according to claim 1, characterized in that: The driving rod (2) can slide along the length direction of the handle (1), the front end of the driving rod (2) is provided with a driving block (21), the clamping arm (1a) is provided with a first guide block (3a) and a second guide block (3b) which cooperate with the driving block (21), and the driving block (21) can slide on the first guide block (3a) and the second guide block (3b).

3. The cleaning brush handle with replaceable brush block according to claim 2, characterized in that: The cooperation between the driving block (21), the first guide block (3a) and the second guide block (3b) satisfies the following relationship: When the driving rod (2) moves forward to the driving block (21) and contacts the first guide block (3a), the two clamping arms (1a) are in a closed state; when the driving rod (2) moves backward to the driving block (21) and contacts the second guide block (3b), the two clamping arms (1a) are in an open state; Alternatively, when the driving rod (2) moves forward to the driving block (21) and contacts the first guide block (3a), the two clamping arms (1a) are in an open state; and when the driving rod (2) moves backward to the driving block (21) and contacts the second guide block (3b), the two clamping arms (1a) are in a closed state.

4. The cleaning brush handle with replaceable brush block according to claim 3, characterized in that: The first guide block (3a) is arranged at a position close to the central axis (X) in the clamping arm (1a), and the first guide block (3a) has a guide plane (3a1) and a front yielding surface (3a2) inclined from front to back in a direction close to the central axis (X); the second guide block (3b) is arranged at a position away from the central axis (X) in the clamping arm (1a), the first guide block (3a) and the second guide block (3b) are staggered, and the inner end surface of the second guide block (3b) is a rear guide surface (3b1) inclined from front to back in a direction close to the central axis (X); when the driving block (21) contacts the guide plane (3a1), the two clamping arms (1a) are kept in a closed state, and when the driving block (21) moves backward along the rear guide surface (3b1), the driving block (21) drives the two clamping arms (1a) to move away from each other.

5. The cleaning brush handle with replaceable brush block according to claim 2, characterized in that: An embedded component (3) is fixed in each clamping arm (1a), and the first guide block (3a) and the second guide block (3b) are arranged on the embedded component (3).

6. The handle for a cleaning brush with a replaceable brush block according to claim 5, characterized in that: The inner end of the inner insert (3) has a blocking portion (31) extending inwards.

7. The cleaning brush handle with replaceable brush block according to claim 2, characterized in that: A linkage rod (4) is also provided in the handle (1) and can slide along the length direction of the handle (1). The drive rod (2) is connected to the linkage rod (4) and can slide along with the linkage rod (4). The linkage rod (4) is provided with a push button (5) for exposing the handle (1).

8. The cleaning brush handle with replaceable brush block according to claim 1, characterized in that: The front end of the clamping arm (1a) is sleeved with a clamping sleeve (6), the space (Q) for clamping the brush block is formed between the clamping sleeves (6), the clamping sleeve (6) is provided with a plurality of convex teeth (61) for clamping the brush block, or the clamping sleeve (6) is provided with a clamping portion (62) for clamping the brush block, and the clamping portion (62) is provided with a bayonet (621) for clamping a connecting column on the brush block.

9. The cleaning brush handle with replaceable brush block according to claim 1, characterized in that: The driving rod (2) is rotatable, and a driving block (21) is provided at the front end of the driving rod (2). The clamping arm (1a) is provided with a first guide block (3a) and a second guide block (3b) which cooperate with the driving block (21). The rotation of the driving rod (2) enables the driving block (21) to slide on the first guide block (3a) and the second guide block (3b).

10. The cleaning brush handle with replaceable brush block according to claim 1, characterized in that: A clip (7) is detachably mounted on the rear end of the handle (1).

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