Impeller rotation stopping mechanism

Abstract

The utility model discloses an impeller rotation stopping mechanism which can directly control rotation of an impeller on the surface of a product and comprises a water passing piece, the impeller and a control assembly. The water passing piece is provided with a water passing cavity; the impeller is rotationally matched in the water passing cavity; a limiting part is arranged on the end surface of the impeller; the control assembly comprises a key fixing base, a key, a rotation stopping pin and a reset spring. The key fixing seat is fixed relative to the water passing piece and is provided with a movable channel; the key is telescopically matched with the outer end part of the movable channel; the rotation stopping pin is axially and movably matched in the movable channel, movably penetrates into the water passing cavity in a sealed mode, abuts against the end face of the impeller and is matched with the limiting part along with rotation of the impeller to limit rotation of the impeller; the reset spring is used for driving the rotation stopping pin to move in the direction away from the impeller. And a ball-point pen mechanism is arranged among the key fixing seat, the key and the rotation stopping pin.

Description

Technical Field

[0001] The utility model relates to the technical field of bathroom equipment, in particular to an impeller anti-rotation mechanism. Background Art

[0002] At present, hand-held showers and overhead showers may be provided with impellers for realizing various functions of the shower (such as pulse water) to meet the diverse usage needs of users.

[0003] Since the impeller is arranged inside the shower head, the prior art lacks a design that can directly control whether the impeller rotates. When the user no longer needs the function of the impeller, the impeller can only be removed by disassembling the shower head, which is a troublesome operation. Utility Model Content

[0004] The purpose of the utility model is to provide an impeller anti-rotation mechanism to solve the problems existing in the prior art. The rotation of the impeller can be directly controlled on the product surface to realize the corresponding function of the switch impeller, which is easy to operate.

[0005] In order to achieve the above purpose, the solution of the utility model is:

[0006] An impeller anti-rotation mechanism comprises a water-flowing part, an impeller and a control assembly; the water-flowing part is provided with a water-flowing chamber; the impeller rotatably fits in the water-flowing chamber; a limiting portion is provided on the end face of the impeller; the control assembly comprises a button fixing seat, a button, a anti-rotation pin and a reset spring; the button fixing seat is relatively fixed to the water-flowing part and is provided with a movable channel; the button is telescopically fitted at the outer end of the movable channel; the anti-rotation pin is axially movably fitted in the movable channel and movably and sealingly penetrates the water-flowing chamber and abuts against the end face of the impeller, and cooperates with the limiting portion as the impeller rotates to limit the rotation of the impeller; the reset spring is used to drive the anti-rotation pin to move in a direction away from the impeller; a ballpoint pen mechanism is provided between the button fixing seat, the button and the anti-rotation pin.

[0007] The water passage cavity is provided with a side opening, and the side opening is sealed with a cover plate; the key fixing seat is installed on the cover plate, and the anti-rotation pin is movably and sealingly penetrated through the cover plate.

[0008] Preferably, a convex ring is provided on one side of the cover plate facing the water passage chamber, the convex ring is embedded in the side opening, and a sealing ring is provided between the circumferential surface of the convex ring and the inner wall of the side opening.

[0009] The limiting portion is a block-shaped structure protruding from the end face of the impeller; the end of the stop pin is movably engaged with the side face of the limiting portion as the impeller rotates.

[0010] Preferably, the upper surface of the limiting portion is an inclined surface, and the inclined surface extends along the circumferential direction of the impeller to the end surface of the impeller.

[0011] The inner wall of the movable channel is circularly provided with a plurality of groups of long grooves, short grooves and first one-way teeth; the circumferential surface of the key is provided with a guide protrusion that slides in the long groove, and the end surface of the key facing the stop pin is provided with a plurality of bidirectional teeth; the circumferential surface of the stop pin is provided with a limiting protrusion that slides in the long groove or the short groove, and the end surface of the stop pin facing the key is provided with a plurality of second one-way teeth arranged at equal angles.

[0012] Preferably, the anti-rotation pin is composed of a pin shaft and a movable part of separate design, the limiting protrusion and the second one-way tooth are both arranged on the movable part, and a limiting plate is arranged at the end of the pin shaft opposite to the movable part, and the movable part and the return spring are respectively located on both sides of the limiting plate.

[0013] A circular gasket is arranged at the inner end of the movable channel, and the anti-rotation pin is penetrated through the circular gasket and penetrates into the water passage cavity.

[0014] Preferably, a V-ring is provided between the anti-rotation pin and the circular gasket.

[0015] After adopting the above technical solution, the utility model has the following technical effects:

[0016] The control component of the utility model can drive the ballpoint pen mechanism to move by the action of the user pressing a button, thereby driving the anti-rotation pin to move axially relative to the button fixing seat. When the anti-rotation pin abuts against the end face of the impeller, it can cooperate with the limit part to limit the rotation of the impeller. When the anti-rotation pin is away from the impeller, the impeller can rotate freely. The user operation is simple and the experience is good. The product structure is simple and easy to assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an exploded view of a specific embodiment of the utility model;

[0018] Figure 2 A three-dimensional diagram of a key fixing seat according to a specific embodiment of the utility model;

[0019] Figure 3 It is a cross-sectional view of a specific embodiment of the utility model;

[0020] Description of Figure Numbers:

[0021] 1- water passing part; 11- water passing cavity;

[0022] 2- impeller; 21- limiting part; 211- inclined surface;

[0023] 3-control component; 31-button fixing seat; 311-movable channel; 312-long slot; 313-short slot; 314-first one-way tooth; 32-button; 321-guide convex block; 322-bidirectional tooth; 33-stop pin; 33a-pin shaft; 33b-movable part; 331-limiting convex block; 332-second one-way tooth; 333-limiting plate; 34-reset spring; 35-round gasket;

[0024] 4-cover plate; 41-convex ring;

[0025] 5- Sealing ring;

[0026] 6-V-ring. DETAILED DESCRIPTION

[0027] In order to further explain the technical solution of the present utility model, the present utility model is described in detail below through specific embodiments.

[0028] refer to Figures 1 to 3 As shown, the utility model discloses an impeller anti-rotation mechanism, comprising a water passing part 1, an impeller 2 and a control component 3;

[0029] The water passing part 1 is provided with a water passing cavity 11;

[0030] The impeller 2 is rotatably fitted in the water passage chamber 11; a limiting portion 21 is provided on the end surface of the impeller 2;

[0031] The control component 3 includes a button fixing seat 31, a button 32, a stop pin 33 and a reset spring 34; the button fixing seat 31 is relatively fixed to the water flow part 1 and is provided with a movable channel 311; the button 32 is telescopically fitted in the outer end of the movable channel 311; the stop pin 33 is axially movable in the movable channel 311 and movably and sealingly penetrates the water flow chamber 11 and abuts against the end face of the impeller 2, and cooperates with the limiting part 21 to limit the rotation of the impeller 2 as the impeller 2 rotates; the reset spring 34 is used to drive the stop pin 33 to move in a direction away from the impeller 2 to release the restriction of the stop pin 33 on the impeller 2; a ballpoint pen mechanism is provided between the button fixing seat 31, the button 32 and the stop pin 33, so that when the button 32 is pressed, the stop pin 33 is driven to rotate and change the axial position of the stop pin 33 in the movable channel 311, so that the stop pin 33 abuts against or moves away from the end face of the impeller 2.

[0032] Through the above scheme, the control component 3 of the utility model can drive the ballpoint pen mechanism to move through the action of the user pressing the button 32, thereby driving the stop pin 33 to move axially relative to the button fixing seat 31. When the stop pin 33 abuts against the end face of the impeller 2, it can cooperate with the limit portion 21 to limit the rotation of the impeller 2. When the stop pin 33 is away from the impeller 2, the impeller 2 can rotate freely. The user has simple operation and good experience, and the product structure is simple and easy to assemble.

[0033] The specific implementation of the present utility model is shown below.

[0034] The water passage chamber 11 is provided with a side opening 111 , and the side opening 111 is sealed with a cover plate 4 ; the key fixing seat 31 is installed on the cover plate 4 , and the anti-rotation pin 33 is movably and sealingly penetrated through the cover plate 4 .

[0035] Furthermore, a convex ring 41 is provided on one side of the cover plate 4 facing the water passage chamber 11 . The convex ring 41 is embedded in the side opening 111 , and a sealing ring 5 is provided between the circumference of the convex ring 41 and the inner wall of the side opening 111 .

[0036] The above-mentioned limiting portion 21 is a block-shaped structure protruding from the end face of the impeller 2; the end of the anti-rotation pin 3 is engaged with the side of the limiting portion 21 as the impeller 2 rotates, thereby realizing the anti-rotation function of the impeller 2.

[0037] Furthermore, the upper surface of the above-mentioned limit portion 21 is an inclined surface 211, and the inclined surface 211 extends along the circumferential direction of the impeller 2 to the end surface of the impeller 2. By designing the inclined surface 211, when the user presses the button 32 and the stop pin 33 just abuts against the end surface of the limit portion 21, the impeller 2 can still continue to rotate until the impeller 2 rotates until the stop pin 33 abuts against the side of the limit portion 21.

[0038] The inner wall of the movable channel 311 is provided with a plurality of groups of long grooves 312, short grooves 313 and first one-way teeth 314 in a circular manner; the peripheral surface of the key 32 is provided with a guide protrusion 321 that slides in the long groove 312, so that the key 32 can move axially in the movable channel 311 without rotating, and the end surface of the key 32 facing the stop pin 33 is provided with a plurality of bidirectional teeth 322; the peripheral surface of the stop pin 33 is provided with a limit protrusion 331 that slides in the long groove 312 or the short groove 313, and the end surface of the stop pin 33 facing the key 32 is provided with a plurality of second one-way teeth 332 that are arranged at equal angles. When the key 32 is pressed, the bidirectional teeth 322 abut against the second one-way teeth 332 to drive the stop pin 33 to rotate. After the stop pin 33 rotates, it is guided by the first one-way teeth 314 to fit in the long groove 312 or the short groove 313, so as to change the axial position of the stop pin 33 in the movable channel 311.

[0039] Furthermore, the anti-rotation pin 33 is composed of a pin shaft 33a and a movable part 33b of separate design, the limiting protrusion 331 and the second one-way tooth 332 are both arranged on the movable part 33b, the end of the pin shaft 33a opposite to the movable part 33b is provided with a limiting plate 333, and the movable part 33b and the return spring 34 are respectively located on both sides of the limiting plate 333. After the movable part 33b is separated from the pin shaft 33a, the rotation torque of the anti-rotation pin 33 when being driven is no longer transmitted to the pin shaft 33a, so that the rotation of the movable part 33b is smoother. Of course, in other embodiments, the anti-rotation pin 33 can also be an integral part.

[0040] A circular gasket 35 is disposed at the inner end of the movable channel 311 , and the anti-rotation pin 33 passes through the circular gasket 35 and penetrates into the water passage cavity 11 .

[0041] Furthermore, a V-ring 6 is provided between the anti-rotation pin 33 and the circular gasket 35 to achieve a movable seal between the anti-rotation pin 33 and the circular gasket 35 .

[0042] The above embodiments and drawings do not limit the product form and style of the present utility model. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present utility model.

Claims

1. An impeller anti-rotation mechanism, characterized in that: Including water passing parts, impeller and control components; The water passing member is provided with a water passing cavity; The impeller is rotatably fitted in the water passage chamber; a limiting portion is provided on the end surface of the impeller; The control assembly includes a button fixing seat, a button, a stop pin and a return spring; The button fixing seat is relatively fixed to the water passing member and is provided with a movable channel; The button is telescopically fitted at the outer end of the movable channel; The anti-rotation pin is axially movable and engaged in the movable channel and moves and seals through the water passage cavity and abuts against the end surface of the impeller, and cooperates with the limiting portion to limit the rotation of the impeller as the impeller rotates; The return spring is used to drive the stop pin to move in a direction away from the impeller; A ballpoint pen mechanism is arranged between the key fixing seat, the key and the anti-rotation pin.

2. The impeller anti-rotation mechanism according to claim 1, characterized in that: The water passage cavity is provided with a side opening, and the side opening is sealed with a cover plate; the key fixing seat is installed on the cover plate, and the anti-rotation pin is movably and sealingly penetrated through the cover plate.

3. The impeller anti-rotation mechanism according to claim 2, characterized in that: A convex ring is arranged on one side of the cover plate facing the water passage cavity, the convex ring is embedded in the side opening, and a sealing ring is arranged between the circumference of the convex ring and the inner wall of the side opening.

4. The impeller anti-rotation mechanism according to claim 1, characterized in that: The limiting portion is a block-shaped structure protruding from the end face of the impeller; the end of the stop pin is movably engaged with the side face of the limiting portion as the impeller rotates.

5. The impeller anti-rotation mechanism according to claim 4, characterized in that: The upper surface of the limiting portion is an inclined surface, and the inclined surface extends along the circumferential direction of the impeller to the end surface of the impeller.

6. The impeller anti-rotation mechanism according to claim 1, characterized in that: The inner wall of the movable channel is circularly provided with a plurality of groups of long grooves, short grooves and first one-way teeth; the circumferential surface of the key is provided with a guide protrusion that slides in the long groove, and the end surface of the key facing the stop pin is provided with a plurality of bidirectional teeth; the circumferential surface of the stop pin is provided with a limiting protrusion that slides in the long groove or the short groove, and the end surface of the stop pin facing the key is provided with a plurality of second one-way teeth arranged at equal angles.

7. The impeller anti-rotation mechanism according to claim 6, characterized in that: The anti-rotation pin is composed of a pin shaft and a movable part with separate designs. The limiting protrusion and the second one-way tooth are both arranged on the movable part. A limiting plate is arranged at the end of the pin shaft opposite to the movable part. The movable part and the return spring are respectively located on both sides of the limiting plate.

8. The impeller anti-rotation mechanism according to claim 1, characterized in that: A circular gasket is arranged at the inner end of the movable channel, and the anti-rotation pin is penetrated through the circular gasket and penetrates into the water passage cavity.

9. The impeller anti-rotation mechanism according to claim 8, characterized in that: A V-shaped ring is arranged between the anti-rotation pin and the circular gasket.

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