Expansion brush

Abstract

The utility model discloses an expansion hairbrush, which utilizes the elasticity of an elastic strip to realize the rapid contraction and expansion of the elastic strip through the movement of an expansion sleeve along a scrubbing shaft, so that the expansion hairbrush is inserted into a container in a contraction state and then is expanded to enable the bristles of the expansion hairbrush to be clung to the inner wall of the container, and the inner wall of the container can be quickly scrubbed subsequently. The efficiency is high, and the cleaning quality is good. In addition, locking and unlocking of the opening sleeve and the scrubbing shaft are achieved through a locking block, use is greatly facilitated, meanwhile, stability of the brush can be effectively guaranteed, and convenience is provided for subsequent scrubbing. Meanwhile, the motor can be adopted to drive the scrubbing shaft to rotate, the scrubbing shaft is matched with an upper locking block and a shell to achieve rapid disassembly and assembly, therefore, the brush can be rapidly replaced to adapt to different containers, in addition, the electric mode is more labor-saving, the large-batch cleaning requirement of a medical unit can be met, and the practicability is high. And the requirements of high-quality and high-efficiency cleaning can also be met.

Description

Technical Field

[0001] The utility model relates to a brush, in particular to an expansion brush. Background Art

[0002] The existing brush is cylindrical, and it is not possible to effectively clean some containers with curved inner walls, such as cupping jars, conical bottles, etc. The current practice is to soak the containers with detergent first, and then use a smaller brush to brush them little by little, which is very inefficient and has a poor cleaning effect.

[0003] Therefore, how to solve the problem of efficient and high-quality cleaning of containers with curved inner walls is a technical problem that needs to be solved at present, but there is currently no such technology. Utility Model Content

[0004] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the utility model is to provide an expansion brush which can adapt to containers with different curved inner walls and clean the interior thereof efficiently and with high quality.

[0005] To achieve the above-mentioned purpose, the utility model provides an expansion brush, including a brush shaft, an end cover, and an opening sleeve, wherein the end cover is installed on one end of the brush shaft, the opening sleeve is sleeved outside the brush shaft, one end of the opening sleeve is assembled with one end of an elastic strip, and the other end of the elastic strip is assembled with the end cover, the elastic strip is elastic and in an initial state, the elastic strip is in a state of being in contact with or close to the brush shaft; a brush is installed on the elastic strip, and a plurality of bristles are arranged on the brush.

[0006] As a further improvement of the utility model, a locking block groove is provided on the opening sleeve, the locking block groove is engaged with the locking block and slidably assembled, the locking block is assembled with one end of the locking block shaft, and the other end of the locking block shaft passes through the spring piece, the opening sleeve, and the switch fork groove and is assembled and fixed with the nut, and the two ends of the spring piece are respectively pressed on the end surfaces of the locking block and the locking block groove to apply an elastic force to the locking block to press the brush shaft so that the opening sleeve cannot slide axially along the brush shaft;

[0007] The switch fork groove is arranged on one end of the switch plate, the middle part of the switch plate is hinged to the hinge seat through the switch pin, and the hinge seat is arranged on the opening sleeve.

[0008] As a further improvement of the utility model, an end face brush is further provided on the end face of the end cover, and the end face brush is provided with end face brush bristles, and the end face brush bristles are pressed against the inner bottom surface of the container to brush the corresponding part.

[0009] As a further improvement of the utility model, the hair brush and the end face brush are elastic.

[0010] As a further improvement of the utility model, the opening sleeve is further provided with a lower ring and an upper ring, and in the axial orthographic projection of the scrubbing shaft, the switch plate does not exceed the lower ring and the upper ring.

[0011] As a further improvement of the utility model, the expansion brush also includes a shell, a motor is installed in the shell, the output shaft of the motor is assembled with one end of the driving cylinder so as to drive the driving cylinder to rotate circumferentially, the driving cylinder is installed in the shell so as to be rotatable in the circle but not axially movable, and the driving cylinder is sleeved outside the brushing shaft and is assembled with it so as to be non-rotatable relative to the brushing shaft.

[0012] As a further improvement of the present invention, the shell is hollow inside and one end is closed by an end plate, and the end plate is mounted on the shell; a wireless charging receiver and a battery are respectively mounted in the shell, and the motor has a motor driver; the wireless charging receiver is mounted on the battery or the end plate, and the wireless charging receiver is used to cooperate with the wireless charger to realize wireless charging;

[0013] The current output by the wireless charging receiver enters the battery for storage. The battery has a battery management module, and the battery management module is used to control the charging and discharging of the battery. The battery supplies power to the motor.

[0014] As a further improvement of the utility model, a power switch and a switch element are also installed on the housing, the trigger end of the power switch is assembled with the switch element, pressing the switch element controls the on and off of the power switch, and the power switch is connected in series to the power supply circuit of the battery to the motor.

[0015] As a further improvement of the utility model, a fixed sleeve is rotatably mounted on the outside of the opening sleeve, the fixed sleeve and the upper ring are rotatably assembled, a ring groove is provided on the fixed sleeve, the ring groove is engaged with the locking protrusion, the locking protrusion is provided on the locking block, the locking block is assembled with one end of the pressing piece, the other end of the pressing piece passes through the collar and is slidably assembled with the collar, and the collar is installed on the outer shell;

[0016] The locking block is engaged with the engagement groove and slidably assembled. The engagement groove is arranged on the shell, and a locking spring piece is installed between the locking block and the closed end of the engagement groove. The locking spring piece applies an elastic force to the locking block to squeeze the ring so that the locking protrusion remains clamped in the ring groove.

[0017] As a further improvement of the utility model, the scrubbing shaft is provided with a spline groove and a lock groove, respectively, and the end cover is provided with an end cover spline and an end cover protrusion engaged with the spline groove and the lock groove; the opening sleeve is provided with an opening spline and an opening protrusion engaged with the spline groove and the lock groove, respectively;

[0018] A driving spline and a driving protrusion are arranged on the inner wall of the driving cylinder, and the driving spline and the driving protrusion are respectively engaged with the spline groove and the lock groove and slidably assembled.

[0019] The beneficial effects of the utility model are:

[0020] The utility model utilizes the elasticity of the elastic strip, and realizes the rapid retraction and expansion of the elastic strip by moving the opening sleeve along the brushing shaft, so that the brush bristles are closely attached to the inner wall of the container when the elastic strip is inserted into the container in the retracted state and then opened, and the inner wall of the container can be quickly scrubbed subsequently, which is not only efficient but also of good cleaning quality. The utility model also uses a locking block to realize the locking and unlocking of the opening sleeve and the brushing shaft, which greatly facilitates the use and can effectively ensure the stability of the brush, providing convenience for subsequent scrubbing. At the same time, the utility model can use a motor to drive the brushing shaft to rotate, and the locking block and the outer shell are used at the brushing shaft to realize rapid disassembly and assembly, so that the brush can be quickly replaced to adapt to different containers. In addition, the electric method is more labor-saving, which can meet the large-scale cleaning requirements of medical units and the requirements of high-quality and efficient cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a structural schematic diagram of embodiment 1;

[0022] Figure 2 This is a schematic diagram of the use status of the first embodiment;

[0023] Figure 3 It is a cross-sectional view of the embodiment 1 at the center plane where the axis of the brushing shaft 110 is located when the embodiment 1 is in use;

[0024] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0025] Figure 5 It is a schematic diagram of the structure of the switch plate 140 and the lock block 160;

[0026] Figure 6 is a structural diagram of Embodiment 2;

[0027] Figure 7 This is a cross-sectional view of the second embodiment located at the center plane where the axis of the scrubbing shaft 110 is located;

[0028] Figure 8 This is a cross-sectional view of the second embodiment at another center plane where the axis of the scrubbing shaft 110 is located;

[0029] Fig. 9 It is a schematic diagram of the structure of the electric part;

[0030] Fig.10 It is a partial structural diagram of the electric part;

[0031] Fig.11 The structural diagram of the scrubbing part;

[0032] Fig.12 It is a schematic diagram of the structure of the end cover 120. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0034] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are 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 should not be understood as a limitation on the present invention. Embodiment 1

[0035] See also Figure 1-Figure 5 , Fig.12 The expansion brush of this embodiment includes a scrubbing shaft 110, an end cover 120, and an opening sleeve 130. The scrubbing shaft 110 is respectively provided with a spline groove 111 and a lock groove 112. The end cover 120 is installed on one end of the scrubbing shaft 110, and the end cover 120 is provided with an end cover spline 121 and an end cover protrusion 122 engaged with the spline groove 111 and the lock groove 112; the opening sleeve 130 is provided with an opening spline 131 and an opening protrusion 132 engaged with the spline groove 111 and the lock groove 112, respectively, and the opening sleeve 130 is also provided with a lower ring 134 and an upper ring 133.

[0036] The end of the opening sleeve 130 close to the lower ring 134 is assembled with one end of the elastic strip 210, and the other end of the elastic strip 210 is assembled with the end cover 120. The elastic strip 210 is elastic and in the initial state, the elastic strip 120 is in a state of being close to or close to the brushing shaft 110. A brush 220 is installed on the elastic strip 210, and a plurality of bristles 221 are arranged on the brush 220. When the opening sleeve 130 moves toward the end cover 120, it squeezes the elastic strip 120 so that the middle part of the elastic strip 120 expands and opens in a direction away from the brushing shaft 110, and finally reaches Figure 1 state.

[0037] The opening protrusion 132 is also provided with a locking block groove 136, which is engaged with the locking block 160 and slidably assembled. The locking block 160 is assembled with one end of the locking block shaft 150, and the other end of the locking block shaft 150 passes through the spring piece 240, the opening sleeve 130, the switch fork groove 141 and is assembled and fixed with the nut 151. The two ends of the spring piece 240 are respectively pressed on the end surfaces of the locking block 160 and the locking block groove 136 to apply an elastic force to the locking block 160 to press the locking groove 112 so that the opening sleeve 130 cannot slide axially along the scrubbing shaft 110, that is, the relative position of the opening sleeve 130 and the scrubbing shaft 110 is maintained, so that the elastic strip 210 maintains the current state.

[0038] The switch fork groove 141 is arranged on one end of the switch plate 140 . The middle part of the switch plate 140 is hinged to the hinge seat 135 through the switch pin 170 . The hinge seat 135 is arranged on the opening sleeve 130 .

[0039] Figure 4 The lock block 160 is in a state of being pressed against the lock groove 112. When the sliding opening sleeve 130 is required, the switch plate 140 is pressed against one end of the switch fork groove 141, so that the switch plate 140 rotates around the switch pin 170, so that the switch plate 140 carries the lock block shaft 150 and the lock block 160 to overcome the elastic force of the spring sheet 240 and move away from the lock groove 112, thereby releasing the pressed state. At this time, the opening sleeve 130 can be moved until the switch plate 140 is released after reaching a suitable position, and the spring sheet drives the lock block 160 to resume pressing against the lock groove 112. In this embodiment, when the switch plate 140 rotates, its displacement along the axial direction of the scrubbing shaft 110 is offset by the sliding of the switch plate 140 and the nut 151, so a wear-resistant and smooth material, such as polytetrafluoroethylene (Teflon), can be provided on the contact surface between the switch plate 140 and the nut 151.

[0040] See also Figure 2-Figure 3 In this embodiment, a fire cup 900 is used to represent some containers with irregular inner walls. When in use, the elastic strip 210 is first retracted toward the brushing shaft 110 so that the brush 220 can be smoothly loaded into the fire cup 900, and then the switch plate 140 is pressed to push the opening sleeve 130 to move toward the end cover 120 so that the elastic strip 210 is opened and bent outward, and the brush 220 is opened and bent synchronously to Figure 3 In this state, the bristles 221 are set longer, such as 1.5 cm, and the bristles will be deformed and pressed against the inner wall of the cupping jar 900 by themselves, and then the switch plate 140 is released to maintain Figure 3 In this state, the brushing shaft 110 is rotated and the sleeve 130 is opened to drive the brush 220 to rotate and clean the inner wall of the cupping jar 900.

[0041] In this embodiment, an end face brush 230 is further provided on the end face of the end cover 120 , and the end face brush 230 is provided with end face brush bristles 231 , and the end face brush bristles 231 are pressed against the inner bottom surface of the cupping jar 900 to brush the corresponding part.

[0042] In this embodiment, there are multiple elastic strips 210 and brushes 220 and they are evenly distributed along the circumference of the scrubbing shaft 110. This design can firstly achieve higher scrubbing efficiency and better scrubbing effect, and at the same time, there are gaps between the elastic strips 210, so that detergent and cleaning liquid can pass through, thereby improving the comfort of use and the cleaning quality.

[0043] In this embodiment, the hair brush 220 and the end brush 230 are elastic, and the hair brush 220 can be integrally formed with the elastic strip 210, and the end brush 230 can be integrally formed with the end cover 120. The hair brush 220 and the end brush 230 can be made of soft silicone, and the elastic strip 210 needs to be made of elastic and high-strength materials, such as elastic plastic, hard silicone, metal, etc. In the initial state, the elastic strip 210 can be closer to the brushing shaft 110 with a large arc to reduce the outer diameter of the hair brush 220 so as to facilitate loading into the corresponding container, and this arc makes it easier to expand the elastic strip 210 later.

[0044] The function of the lower ring 134 is mainly to reduce the probability of the cleaning liquid splashing toward one end of the upper ring 133, thereby improving the comfort of use. The function of the upper ring 133 is mainly to prevent the switch plate 140 from being accidentally touched during use. The switch plate does not exceed the upper ring 133 and the lower ring 134 in the axial projection of the brush shaft. When in use, the brush shaft 110 or the outer wall of the upper ring 133 and the lower ring 134 can be grasped by hand to drive the brush to rotate for brushing. At this time, the upper ring 133 and the lower ring 134 can reduce the probability of the switch plate 140 being accidentally touched. Embodiment 2

[0045] See also Figure 6-Figure 11 In the first embodiment, a manual rotating brush 220 is used, which is only suitable for temporary use and small batch cleaning. However, medical institutions use a large number of cupping jars every day, and each time they are used, they need to be cleaned, disinfected, and dried. Therefore, the method of the first embodiment cannot meet the needs. For this reason, this embodiment adds an electric function.

[0046] Specifically, this embodiment adds a housing 310, the housing 310 is hollow inside and one end is closed by an end plate 311, and the end plate 311 is mounted on the housing 310; the housing 310 is respectively installed with a wireless charging receiver 410, a battery 420, and a motor 430, and the motor has a motor driver, and the motor driver is used to control the start and stop, the running state, etc. of the motor 430. The wireless charging receiver 410 is installed on the battery 420 or the end plate 311, and the wireless charging receiver 410 is used to cooperate with the wireless charger to achieve wireless charging.

[0047] The current output by the wireless charging receiver 410 enters the battery 420 for storage. The battery 420 has its own battery management module. The battery management module 420 is used to control the charging and discharging of the battery. This is a prior art, and specifically, the relevant technologies of the existing wireless charging toothbrush or wireless charging mobile phone can be adopted.

[0048] The battery 420 supplies power to the motor 430, and the output shaft 431 of the motor 430 is assembled with one end of the driving cylinder 320 so as to drive the driving cylinder 320 to rotate in a circle. The driving cylinder 320 is installed in the outer shell 310 so as to be rotatable in a circle but not axially movable. A driving spline 321 and a driving protrusion 322 are provided on the inner wall of the driving cylinder 320. The driving spline 321 and the driving protrusion 322 are respectively engaged with the spline groove 111 and the lock groove 112 and slidably assembled so that the driving cylinder 320 can drive the scrubbing shaft 110 to rotate in a circle.

[0049] The housing 310 is also provided with a power switch 440 and a switch element 330. The trigger end of the power switch is assembled with the switch element 330. The power switch 440 can be turned on and off by pressing the switch element. The power switch 440 is connected in series to the power supply line of the battery 420 to the motor 430, so that the power switch 440 can control the on and off of the power supply of the battery to the motor 430. When in use, the power switch 440 can be turned on by pressing the switch element 330, thereby driving the scrubbing shaft to rotate for scrubbing. When the switch element 330 is not pressed or the pressure is insufficient to close the power switch 440, the power supply line between the battery and the motor is in an open circuit state, and the motor does not start.

[0050] A fixing sleeve 170 is also rotatably mounted on the outside of the opening sleeve 130. The fixing sleeve 170 is rotatably assembled with the upper ring 133 through a bearing 171. A ring groove 172 is provided on the fixing sleeve 170. The ring groove 351 is engaged with a locking protrusion 351. The locking protrusion 351 is provided on a locking block 350. The locking block 350 is assembled with one end of a pressing member 340. The other end of the pressing member 340 passes through a collar 360 and is slidably assembled with the collar 360. The collar 360 is mounted on the outer shell 310 by screws.

[0051] The locking block 350 is engaged with and slidably assembled with the engaging groove 312, which is provided on the housing 310, and a locking spring 250 is installed between the locking block 350 and the closed end of the engaging groove 312, and the locking spring 250 applies an elastic force to the locking block 350 to press the collar 360 so that the locking protrusion 351 remains tightly clamped in the ring groove 172. The locking spring 250 is elastic.

[0052] See also Figure 7 When the brush shaft 110 needs to be removed, the pressing piece 340 is pressed so that the pressing piece 340 drives the locking block 350 to press the locking spring piece 250, and the locking spring piece 250 is elastically deformed and the locking block 350 moves toward the locking spring piece 250 until the locking protrusion 351 exits the annular groove 172. At this time, the brush shaft 110 and the fixing sleeve 170 can be pulled out from the outer shell 310.

[0053] When in use, it is necessary to first adjust the brush 220 by opening the sleeve 130 as needed so that the bristles 221 are pressed tightly against the inner wall of the cupping 900, then install the brush shaft 110 into the driving cylinder 320, and then put the fixing sleeve 170 on the end of the shell 310 and move it toward the ring 360, so that the fixing sleeve 170 squeezes the locking protrusion 351, and the locking protrusion 351 compresses the locking spring piece 250 so that the fixing sleeve 170 passes through the locking protrusion 351 until the annular groove 172 is opposite to the locking protrusion 351, and the locking protrusion 351 is installed in the annular groove 172 to complete the assembly, and then it can start to be used.

[0054] Of course, the brush shaft 110 can be first installed into the driving cylinder 320, the fixing sleeve 170 can be installed on the shell, and then the shell 310 and the opening sleeve 130 can be moved axially relative to the brush shaft 110 to adjust the brush 220 to fit tightly against the inner wall of the cupping jar 900.

[0055] In this embodiment, the spline groove 111 and the lock groove 112 may have the same structure (cross section), and the corresponding splines and protrusions may also have the same structure (cross section).

[0056] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

[0057] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. An expansion brush, characterized in that: It includes a brushing shaft, an end cover, and an opening sleeve. The end cover is installed on one end of the brushing shaft, and the opening sleeve is sleeved outside the brushing shaft. One end of the opening sleeve is assembled with one end of an elastic strip, and the other end of the elastic strip is assembled with the end cover. The elastic strip is elastic and is in a state of being in contact with or close to the brushing shaft in an initial state. A brush is installed on the elastic strip, and a plurality of bristles are arranged on the brush.

2. The expansion brush according to claim 1, characterized in that: The opening sleeve is provided with a locking block groove, the locking block groove is engaged with the locking block and slidably assembled, the locking block is assembled with one end of the locking block shaft, and the other end of the locking block shaft passes through the spring sheet, the opening sleeve, and the switch fork groove and is assembled and fixed with the nut, and the two ends of the spring sheet are respectively pressed on the end surfaces of the locking block and the locking block groove to apply an elastic force to the locking block to press the brush shaft so that the opening sleeve cannot slide along the axial direction of the brush shaft; The switch fork groove is arranged on one end of the switch plate, the middle part of the switch plate is hinged to the hinge seat through the switch pin, and the hinge seat is arranged on the opening sleeve.

3. The expansion brush according to claim 1, characterized in that: An end face brush is also arranged on the end face of the end cover, and end face brush bristles are arranged on the end face brush. The end face brush bristles are pressed tightly against the inner bottom surface of the container to brush the corresponding part.

4. The expansion brush according to claim 3, characterized in that: The bristle brush and end brush are elastic.

5. The expansion brush according to claim 2, characterized in that: The opening sleeve is also provided with a lower ring and an upper ring. On the axial orthographic projection of the scrubbing shaft, the switch plate does not exceed the lower ring and the upper ring.

6. The expansion brush according to any one of claims 1 to 5, characterized in that: The expansion brush also includes a shell, in which a motor is installed. The output shaft of the motor is assembled with one end of a driving cylinder so as to drive the driving cylinder to rotate circumferentially. The driving cylinder is installed in the shell so as to be rotatable in a circular manner but not axially movable. The driving cylinder is sleeved outside the brushing shaft and is assembled with the brush shaft so as to be non-rotatable relative to the brush shaft.

7. The expansion brush according to claim 6, characterized in that: The shell is hollow inside and one end is closed by an end plate, and the end plate is mounted on the shell; a wireless charging receiver and a battery are respectively mounted in the shell, and the motor has a motor driver; The wireless charging receiver is mounted on the battery or the end plate, and the wireless charging receiver is used to cooperate with the wireless charger to achieve wireless charging; The current output by the wireless charging receiver enters the battery for storage. The battery has a battery management module, and the battery management module is used to control the charging and discharging of the battery. The battery supplies power to the motor.

8. The expansion brush according to claim 7, characterized in that: The housing is also provided with a power switch and a switch element. The trigger end of the power switch is assembled with the switch element. Pressing the switch element controls the on and off of the power switch. The power switch is connected in series to the power supply line of the battery to the motor.

9. The expansion brush according to claim 6, characterized in that: A fixed sleeve is rotatably mounted on the outside of the opening sleeve, the fixed sleeve and the upper ring are rotatably assembled, a ring groove is arranged on the fixed sleeve, the ring groove is engaged with the locking protrusion, the locking protrusion is arranged on the locking block, the locking block is assembled with one end of the pressing member, the other end of the pressing member passes through the collar and is slidably assembled with the collar, and the collar is installed on the housing; The locking block is engaged with the engagement groove and slidably assembled. The engagement groove is arranged on the shell, and a locking spring piece is installed between the locking block and the closed end of the engagement groove. The locking spring piece applies an elastic force to the locking block to squeeze the ring so that the locking protrusion remains clamped in the ring groove.

10. The expansion brush according to claim 6, characterized in that: The brushing shaft is provided with a spline groove and a lock groove, respectively; the end cover is provided with an end cover spline and an end cover protrusion engaged with the spline groove and the lock groove; the opening sleeve is provided with an opening spline and an opening protrusion engaged with the spline groove and the lock groove, respectively; A driving spline and a driving protrusion are arranged on the inner wall of the driving cylinder, and the driving spline and the driving protrusion are respectively engaged with the spline groove and the lock groove and slidably assembled.

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