Power device and swimming pool cleaning robot

Abstract

The utility model provides a power device, which relates to the field of swimming pool cleaning robots, and comprises a driving motor connected with a main control module, main driving shafts which synchronously rotate extend out of the front end and the rear end of the driving motor, and the main driving shafts indirectly drive driven shafts. A clutch device used for driving the driven shaft and the main driving shaft to rotate according to the rotating direction of the main driving shaft is arranged between the main driving shaft and the driven shaft, and a rotating propeller used for pushing water is installed on the driven shaft. Compared with the prior art, the main driving shafts extend out of the two ends of the driving motor in the power device, forward rotation and reverse rotation of the driving motor respectively drive the rotary propellers on the corresponding driven shafts to rotate, discharge water flow, generate reverse thrust and realize forward and backward movement, the structure is simple, and the size is reduced; the device can be applied to the swimming pool cleaning robot, occupied space is reduced, and cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of pool cleaning robots, in particular to a power device and a pool cleaning robot. Background Art

[0002] At present in the market, for pool cleaning robots that obtain power by fluid counter - thrust, the forward power and the backward power are respectively achieved by the counter - thrust generated by the front and rear two motors doing work to drain water. This way, it takes up a large space, has a heavy mass and increases the cost. Content of the Utility Model

[0003] In view of the above problems, the utility model provides a power device, which adopts a driving motor to simultaneously drive the main drive shafts extending from both ends to rotate. The forward rotation and the reverse rotation of the motor respectively drive the rotary propellers on the corresponding driven shafts to rotate, discharge water flow, generate counter - thrust, and realize forward and backward movement. The structure is simple and the volume is reduced.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A power device includes a driving motor connected to a main control module. The front end and the rear end of the driving motor both extend with synchronously rotating main drive shafts. The main drive shafts directly drive or indirectly drive the driven shafts. A clutch device is provided between the main drive shafts and the driven shafts for driving the driven shafts to rotate with the main drive shafts according to the rotation direction of the main drive shafts. Rotary propellers for pushing water are installed on the driven shafts.

[0006] Preferably, the clutch device includes a first sleeve and a second sleeve that cooperate with each other. The first sleeve is provided with a first transmission tooth, and the second sleeve is provided with a second transmission tooth that cooperates with the first transmission tooth. The first sleeve rotates synchronously with the main drive shaft through an inner cylinder, and the second sleeve rotates synchronously with the driven shaft. The direction of the second transmission tooth in the second sleeve on the front - end driven shaft is opposite to the direction of the second transmission tooth in the second sleeve on the rear - end driven shaft.

[0007] More preferably, the ends of the main drive shafts are oppositely arranged with the ends of the driven shafts. The inner cylinder rotates synchronously with the main drive shaft. The first sleeve is sleeved on the inner cylinder. The inner cylinder is provided with at least one outer protrusion for driving the first sleeve to rotate. The outer protrusion is provided with a push block for driving the outer cylinder to move linearly. The inner wall of the first sleeve is provided with an inner protrusion that cooperates with the outer protrusion and a placement groove for inserting the push block. A insert block is fitted in the placement groove. The bottom convex block of the insert block and the bottom of the placement groove form a spiral limit groove that cooperates with the push block.

[0008] Preferably, the clutch device includes a first sleeve and a second sleeve that cooperate with each other. The first sleeve is provided with a first transmission gear, and the second sleeve is provided with a second transmission gear that cooperates with the first transmission gear. The first sleeve rotates synchronously with the main drive shaft, and the second sleeve rotates synchronously with the driven shaft. The direction of the second transmission gear in the second sleeve on the front-end driven shaft is opposite to the direction of the second transmission gear in the second sleeve on the rear-end driven shaft. An elastic member for pressing the first transmission gear and the second transmission gear to mesh with each other is provided on one side of the first sleeve and / or the second sleeve.

[0009] Preferably, the end of the main drive shaft is disposed opposite to the end of the driven shaft. The first sleeve is sleeved on the main drive shaft, and the second sleeve is sleeved on the driven shaft.

[0010] Preferably, the driven shaft is sleeved on the main drive shaft, the first sleeve is sleeved on the main drive shaft, and the second sleeve is disposed on the driven shaft.

[0011] More preferably, the driven shaft is integrally provided with the rotary thruster and / or the second helical gear disc.

[0012] Preferably, a positioning seat for preventing the rotary thruster from falling off is installed on the driven shaft or the main drive shaft.

[0013] Preferably, the drive motor is placed in a sealed chamber, and the sealed chamber is provided with a through hole for the main drive shaft or the driven shaft to pass through.

[0014] The present invention also provides a pool cleaning robot, including a housing. The housing is provided with an inner cavity, the inner cavity communicates with a water inlet and a water outlet, a filtering device is further provided in the inner cavity, the water outlet is divided into a front water outlet and a rear water outlet, and one or more power devices for discharging the water flow entering the inner cavity from the water outlet to generate power are further provided in the housing. The rotary thruster at the front end is located in the corresponding front water outlet, and the rotary thruster at the rear end is located in the corresponding rear water outlet.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: A power device provided by the present invention uses a drive motor to simultaneously drive the main drive shafts extending from both ends to rotate. The forward rotation and reverse rotation of the drive motor respectively drive the rotary thrusters on the corresponding driven shafts to rotate, discharge the water flow, generate a reaction force, and realize forward and backward movement. The structure is simple, the volume is reduced, it can be applied in a pool cleaning robot, the occupied space is reduced, and the cost is lowered. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 , which is a schematic diagram of a first embodiment of a power device provided by the present invention;

[0017] Figure 2, is the explosion diagram of the first embodiment of a power device provided by the present utility model;

[0018] Figure 3 , is the schematic diagram of the first sleeve and the inner cylinder in the first embodiment of a power device provided by the present utility model;

[0019] Figure 4 , is the sectional view of the first embodiment of a power device provided by the present utility model;

[0020] Figure 5 , is the schematic diagram of the first embodiment of a power device provided by the present utility model installed in the sealed chamber Figure 1 ;

[0021] Figure 6 , is the schematic diagram of the first embodiment of a power device provided by the present utility model installed in the sealed chamber Figure 2 ;

[0022] Figure 7 , is the explosion diagram of the first embodiment of a power device provided by the present utility model installed in the sealed chamber;

[0023] Figure 8 , is the schematic diagram of the second embodiment of a power device provided by the present utility model;

[0024] Figure 9 , is the explosion diagram of the second embodiment of a power device provided by the present utility model;

[0025] Figure 10 , is the sectional view of the second embodiment of a power device provided by the present utility model;

[0026] Figure 11 , is the schematic diagram of the second embodiment of a power device provided by the present utility model installed in the sealed chamber;

[0027] Figure 12 , is the sectional view of the second embodiment of a power device provided by the present utility model installed in the sealed chamber;

[0028] Figure 13 , is the schematic diagram of the third embodiment of a power device provided by the present utility model;

[0029] Figure 14 , is the explosion diagram of the third embodiment of a power device provided by the present utility model;

[0030] Figure 15 , is the schematic diagram of the third embodiment of a power device provided by the present utility model installed in the sealed chamber;

[0031] Figure 16 , a schematic diagram of a pool cleaning robot provided by the present utility model Figure 1 ;

[0032] Figure 17 , a schematic diagram of a pool cleaning robot provided by the present utility model Figure 2 ;

[0033] Figure 18 , a cross-sectional view of a pool cleaning robot provided by the present utility model. Detailed implementation manners

[0034] Specifically describe the preferred implementation manners provided by the present utility model according to the attached drawings.

[0035] The power device 10 provided by the present utility model includes a drive motor 11 connected to the main control module. The front end and the rear end of the drive motor 11 both extend with a main drive shaft 12 that rotates synchronously. The main drive shaft 12 indirectly drives the driven shaft 13. A clutch device 16 is provided between the main drive shaft 12 and the driven shaft 13 for driving the driven shaft 13 to rotate with the main drive shaft 12 according to the rotation direction of the main drive shaft 12. A rotary propeller 14 for pushing water is installed on the driven shaft 13. In this way, when the drive motor 11 rotates, the clutch device 16 drives the driven shaft 13 at the front end to rotate or the driven shaft 13 at the rear end to rotate according to the rotation direction of the main drive shaft 12, so as to determine whether the rotary propeller 14 at the front end rotates to do work or the rotary propeller 14 at the rear end rotates, and the drainage generates a reaction force to obtain the power for advancing or retreating. As an implementation manner, the drive motor 11 can be a brushed motor or a brushless motor; the rotary propeller 14 is a propeller.

[0036] When the drive motor 11 drives the main drive shaft 12 to rotate clockwise, the clutch device 16 on the front-end main drive shaft 12 drives the driven shaft 13 to be integrated with the front-end main drive shaft 12, and the driven shaft 13 rotates synchronously with the front-end main drive shaft 12. The rotary propeller 14 on the driven shaft 13 does work, while the clutch device 16 on the rear-end main drive shaft 12 drives the driven shaft 13 to be separated from the rear-end main drive shaft 12, and the driven shaft 13 does not rotate synchronously with the rear-end main drive shaft 12, and the rotary propeller 14 on the driven shaft 13 does not do work; when the drive motor 11 drives the main drive shaft 12 to rotate counterclockwise, the clutch device 16 on the front-end main drive shaft 12 drives the driven shaft 13 to be separated from the front-end main drive shaft 12, and the driven shaft 13 does not rotate synchronously with the front-end main drive shaft 12, and the rotary propeller 14 on the driven shaft 13 does not do work, while the clutch device 16 on the rear-end main drive shaft 12 drives the driven shaft 13 to be integrated with the rear-end main drive shaft 12, and the driven shaft 13 rotates synchronously with the rear-end main drive shaft 12, and the rotary propeller 14 on the driven shaft 13 does work.

[0037] Figures 1 to 4 As shown in the figure, this is the first embodiment of a power device provided by the present utility model. In this embodiment, the clutch device 16A includes a first sleeve 161A and a second sleeve 162A that cooperate with each other. The first sleeve 161A is provided with a first transmission tooth 1611A, and the second sleeve 162A is provided with a second transmission tooth 1621A that cooperates with the first transmission tooth. The first sleeve 161A rotates synchronously with the main drive shaft 12 through the inner cylinder 163A, and the second sleeve 162A rotates synchronously with the driven shaft 13; the direction of the second transmission tooth 1621A in the second sleeve 162A on the front-end driven shaft 13 is opposite to the direction of the second transmission tooth 1621A in the second sleeve 162A on the rear-end driven shaft 13; in this way, when the drive motor 11 drives the front-end main drive shaft 12 and the rear-end main drive shaft 12 to rotate clockwise or counterclockwise, the cooperation or separation of the first transmission tooth 1611A on the first sleeve 161A and the second transmission tooth 1621A on the corresponding second sleeve 162A is achieved through the inner cylinder 163A, and after disengagement, the first transmission tooth 1611A has no contact with the second transmission tooth 1621A on the second sleeve 162A, so as to achieve the purpose of noise reduction and energy consumption reduction.

[0038] The end of the main drive shaft 12 is arranged opposite to the end of the driven shaft 13; the inner cylinder 163A rotates synchronously with the main drive shaft 12, the first sleeve 161A is sleeved on the inner cylinder 163A, the inner cylinder 163A is provided with at least one outer protrusion 1631A for driving the first sleeve 161A to rotate and a push block 1632A for driving the first sleeve 161A to move linearly. The inner wall of the first sleeve 161A is provided with an inner protrusion 1612A that cooperates with the outer protrusion 1631A and a placement groove 1614A for the push block to insert. A insert block 164A is fitted in the placement groove 1614A. The bottom convex block of the insert block 164A and the bottom of the placement groove 1614A form a spiral limit groove 1613A that cooperates with the push block 1632A; during installation, the push block 1632A on the inner cylinder 163A is inserted into the first sleeve 161A through the placement groove 1614A, and then the insert block 164A is placed into the placement groove 1614A to prevent the inner cylinder 163A from falling off the first sleeve 161A. The bottom convex block of the insert block 164A and the bottom of the placement groove 1614A form a spiral limit groove 1613A for the push block 1632A to rotate and slide. The side wall of the placement groove 1614A is provided with an inclined side 16141A, and the side of the insert block 164A is attached to the inclined side of the placement groove 1614A, which can prevent the placement groove 1614A from falling off. At the same time, since the insert block 164A is fan-shaped and the arc length on the outside is greater than the arc length on the inside, the radial movement of the insert block 164A is prevented, thereby positioning the insert block 164A.

[0039] During use, when the drive motor 11 drives the main drive shaft 12 to rotate clockwise, the inner cylinder 163A rotates synchronously with the front-end main drive shaft 12. The push block 1632A on the inner cylinder 163A cooperates with the spiral limiting groove 1613A to push the first sleeve 161A to move towards the second sleeve 162A. The first transmission tooth 1611A cooperates with the second transmission tooth 1621A. During the rotation of the inner cylinder 163A, the outer protrusion 1631A on the inner cylinder 163A cooperates with the inner protrusion 1612A of the first sleeve 161A. As the inner cylinder 163A continues to rotate, it drives the first sleeve 161A to rotate synchronously. The first transmission tooth 1611A on the first sleeve 161A fits with the second transmission tooth 1621A on the second sleeve 162A, thereby driving the second sleeve 162A and the driven shaft 13 to rotate synchronously. The rotary propeller 14 on the driven shaft 13 rotates synchronously to do work. At the same time, the inner cylinder 163A on the rear-end main drive shaft 12 rotates. The push block 1632A on the inner cylinder 163A cooperates with the spiral limiting groove 1613A to drive the first sleeve 161A to move away from the second sleeve 162A. The first transmission tooth 1611A is separated from the second transmission tooth 1621A. When the outer protrusion 1631A on the inner cylinder 163A cooperates with the inner protrusion 1612A of the first sleeve 161A and the inner cylinder 163A drives the first sleeve 161A to rotate synchronously, since the first transmission tooth 1611A is separated from the second transmission tooth 1621A, the second sleeve 162A and the driven shaft 13 at the rear end do not rotate synchronously with the rear-end main drive shaft 12, and the rotary propeller 14 on the driven shaft 13 does not do work. Similarly, when the drive motor 11 drives the main drive shaft 12 to rotate counterclockwise, under the action of the cooperation between the push block 1632A on the inner cylinder 163A and the spiral limiting groove 1613A, the first sleeve 161A on the front-end main drive shaft 12 moves away from the second sleeve 162A. When the inner cylinder 163A drives the first sleeve 161A to rotate synchronously, the second sleeve 162A and the driven shaft 13 at the front end do not rotate synchronously with the front-end main drive shaft 12, and the rotary propeller 14 on the driven shaft 13 does not do work. For the first sleeve 161A on the rear-end main drive shaft 12, under the action of the cooperation between the push block 1632A on the inner cylinder 163A and the spiral limiting groove 1613A, it moves towards the second sleeve 162A. When the first transmission tooth 1611A cooperates with the second transmission tooth 1621A and the inner cylinder 163A drives the first sleeve 161A to rotate synchronously, it drives the second sleeve 162A and the driven shaft 13 at the rear end to rotate synchronously, and the rotary propeller 14 on the driven shaft 13 rotates synchronously to do work.

[0040] Both the inner cylinder 163A and the second sleeve 162A are provided with inner flat surfaces, and both the main drive shaft 12 and the driven shaft 13 are provided with outer flat surfaces, so that the inner cylinder 163A rotates synchronously with the main drive shaft 12, and the second sleeve 162A rotates synchronously with the driven shaft 13.

[0041] The driving motor 11 is placed in the sealed chamber 20, and a through hole 21 for the main drive shaft or the driven shaft to pass through is provided on the sealed chamber 20. As Figure 5 and Figure 7 shown, in the first embodiment, the main drive shaft 12 extending from both ends of the driving motor 11 is inside the sealed chamber 20. One end of the driven shaft 13 passes through the through hole 21 and faces the end of the main drive shaft 12. The side wall of the sealed chamber 20 supports the driven shaft 13; the clutch device 16A is arranged inside the sealed chamber 20, and the rotary propeller 14 is outside the sealed chamber 20. A sealing structure 18 is used to seal between the driven shaft 13 and the through hole 21. Specifically, it is sealed by the combination of a sealing ring and an oil seal. A sealing seat 181 is sleeved on the driven shaft 13. A sealing ring 182 that fits the outer wall of the sealed chamber is installed at one end of the sealing seat, and an oil seal 183 is installed at the other end of the sealing seat. A bearing 184 sleeved on the driven shaft 13 is arranged inside the sealing seat to ensure that during the rotation of the driven shaft 13, liquid is prevented from entering the sealed chamber 20 through the through hole 21. The sealed chamber 20 includes a chamber body 201 and a chamber cover 202, and the through hole 21 is provided on the chamber body 201. As Figure 6 shown, at least one power device 10 can be installed inside the sealed chamber 20, and the power devices 10 can be installed side by side to achieve large power drive.

[0042] Figures 8 to 10 shown, the second embodiment of a power device provided by the present invention. In this embodiment, the clutch device 16B includes a first sleeve 161B and a second sleeve 162B that cooperate with each other. A first transmission tooth 1611B is provided on the first sleeve 161B, and a second transmission tooth 1621B that cooperates with the first transmission tooth is provided on the second sleeve 162B. The first sleeve 161B rotates synchronously with the main drive shaft 12, and the second sleeve 162B rotates synchronously with the driven shaft 13; the direction of the second transmission tooth 1621B inside the second sleeve 161B on the front-end driven shaft 13 is opposite to the direction of the second transmission tooth 1621B inside the second sleeve 161B on the rear-end driven shaft; on one side of the first sleeve 161B and / or the second sleeve 162B, an elastic member 163B for pressing the first transmission tooth and the second transmission tooth to engage with each other is provided; thus, when the driving motor 11 drives the front-end main drive shaft 12 and the rear-end main drive shaft 12 to rotate clockwise or counterclockwise, the elastic member 163B presses the first sleeve 161B and / or the second sleeve 162B to achieve the cooperation or separation of the first transmission tooth 1611B on the first sleeve 161B and the second transmission tooth 1621B on the corresponding second sleeve 162B. The elastic member 163B is a member with elastic functions such as a spring or a spring sheet.

[0043] In this embodiment, the end of the main drive shaft 12 is disposed opposite to the end of the driven shaft 13. The first sleeve 161B and the second sleeve 162B are respectively located at the ends of the main drive shaft 12 and the driven shaft 13. During use, the drive motor 11 drives the front-end main drive shaft 12 and the rear-end main drive shaft 12 to rotate synchronously. When the rotation direction of the main drive shaft 12 at one end is consistent with the meshing direction of the second transmission gear 1621B on the driven shaft 13, the elastic member 163B on this main drive shaft 12 drives the first sleeve 161B and the second sleeve 162B to approach each other, and the first transmission gear 1611B meshes with the second transmission gear 1621B, so that the main drive shaft 12 drives the driven shaft 13 to rotate, and the rotary propeller 14 on the driven shaft 13 rotates synchronously to do work; while the first sleeve 161B and the second sleeve 162B of the main drive shaft 163B at the other end are separated, the first transmission gear 1611B and the second transmission gear 1621B are disengaged, squeezing the elastic member 163B, and the corresponding driven shaft 13 does not rotate, and the rotary propeller 14 on the driven shaft 13 does not do work.

[0044] A positioning seat 17B is provided on one side of the elastic member 163B to position the elastic member 163B. The elastic member 163B is located between the second sleeve 162B and the positioning seat 17B. When the rotation direction of the main drive shaft 12 is inconsistent with the meshing direction of the second transmission gear 1621B on the driven shaft 13, the second sleeve 162B moves backward and squeezes the elastic member 163B. As Figure 1 and Figure 2 shown, the positioning seat 17B is sleeved on the driven shaft 13, and the positioning seat 17B is a positioning gasket.

[0045] Inner flat surfaces are provided inside both the first sleeve 161B and the second sleeve 162B, and outer flat surfaces are provided on both the main drive shaft 12 and the driven shaft 13, so that the first sleeve 161B rotates synchronously with the main drive shaft 12, and the second sleeve 162B rotates synchronously with the driven shaft 13.

[0046] Similar to the structure of the first embodiment, in the second embodiment, as Figures 11 to 12 shown, the main drive shafts 12 extending from both ends of the drive motor 11 are located inside the sealed chamber 20. One end of the driven shaft 13 passes through the through hole 21 and is opposite to the end of the main drive shaft 12. The side wall of the sealed chamber 20 supports the driven shaft 13; the clutch device 16B is arranged inside the sealed chamber 20, and the rotary propeller 14 is located outside the sealed chamber 20; a sealing structure 18 is used for sealing between the driven shaft 13 and the through hole 21. At least one power device 10 can be installed inside the sealed chamber 20, and the power devices 10 can be installed side by side to achieve large power drive.

[0047] Figures 13 to 14As shown in the figure, this is the third embodiment of a power device provided by the present utility model. In this embodiment, the clutch device 16C is similar in structure to the clutch device 16B in the second embodiment. The difference is that the driven shaft 13 is sleeved on the main drive shaft 12, the first sleeve 161C is sleeved on the main drive shaft 12, the second sleeve 162C is arranged on the driven shaft 13, and the second transmission tooth 1621C on the second sleeve 162C faces the first transmission tooth 1611C on the first sleeve 161C, so that the axes of the driven shaft 13 and the main drive shaft 12 are on the same straight line. In this way, when the drive motor 11 drives the front main drive shaft 12 and the rear main drive shaft 12 to rotate clockwise or counterclockwise, the elastic member 163C presses the first sleeve 161C and / or the second sleeve 162C, realizing the cooperation or separation of the first transmission tooth 1611C on the first sleeve 161C and the corresponding second transmission tooth 1621C on the second sleeve 162C, thereby determining whether the rotary thruster 14 at the front end rotates to do work or the rotary thruster 14 at the rear end rotates.

[0048] The driven shaft 13 and the rotary thruster 14 can be separate components respectively, and the rotary thruster 14 rotates synchronously with the driven shaft 13. They can also be set as an integral body, that is, the sleeve in the rotary thruster 14 serves as the driven shaft 13. Moreover, the second sleeve 162C and the driven shaft 13 can both be separate components, and the second sleeve 162C rotates synchronously with the driven shaft 13. They can also be set as an integral body, that is, the second sleeve 162C is arranged at the end of the driven shaft 13, and the second transmission tooth 1621C is formed on the end face of the driven shaft 13. As Figures 13 to 14 shown in the figure, the driven shaft 13 and the rotary thruster 14 are set as an integral body, the sleeve in the rotary thruster 14 serves as the driven shaft 13, the second sleeve 162C is formed on the end face of the sleeve in the rotary thruster 14, the elastic member 163C is on one side of the rotary thruster 14, and the positioning seat 17C is installed on the main drive shaft 12, which can prevent the elastic member 163C and the driven shaft 13 from falling off the main drive shaft 12. The positioning seat 17C can be a nut.

[0049] In the third embodiment, as Figure 15As shown in the figure, the drive motor 11 is placed inside the sealed chamber 20. The main drive shafts 12 at both ends of the drive motor 11 pass through the through holes 21 of the sealed chamber 20. The main drive shafts 12 at both ends of the drive motor 11 pass through the through holes 21 of the sealed chamber 20 to connect the clutch device 16C and the rotary propeller 14. The main drive shafts 11 at both ends of the drive motor are sealed with the through holes 21 by means of oil seals to prevent external liquid from entering the sealed chamber 20. The sealed chamber 20 includes a chamber body 201 and a chamber cover 202 that cooperates with the chamber body. The through holes 21 are provided on both sides of the chamber cover 202. At least one power device 10 can be installed inside the sealed chamber 20, and the power devices 10 can be installed side by side to achieve large power drive.

[0050] As Figures 16 to 18 shown, the present utility model also provides a pool cleaning robot, which includes a housing 100. An inner cavity 200 is provided inside the housing. A filtering device 300 is also provided inside the inner cavity. The inner cavity communicates with a water inlet 2001 and a water outlet 2002. The water outlet is divided into a front water outlet 20021 and a rear water outlet 20022. More than one power device 10 for generating power by discharging the water flow entering the inner cavity from the water outlet is provided inside the housing. The rotary propeller 14 at the front end is located inside the corresponding front water outlet 20021, and the rotary propeller 14 at the rear end is located inside the corresponding rear water outlet 20022.

[0051] Two power devices 10 can be provided inside the housing. The drive motors 11 in the two power devices 10 are both connected to the main control module. The two power devices 10 are arranged side by side left and right. When the rotary propellers 14 at the front ends in the two power devices 10 spray water forward at the same time, a reaction force is generated, so as to obtain the power to move backward; when the rotary propellers 14 at the rear ends in the two power devices 10 spray water backward at the same time, a reaction force is generated, so as to obtain the power to move forward; when the rotary propeller 14 at the rear end in the right power device 10 sprays water backward, the right side obtains the power to move forward, but due to the resistance of the water in the front, the whole machine will deflect and move to the left. If the rotary propeller 14 at the front end in the left power device 10 sprays water forward at this time, the machine can obtain the maneuverability close to turning in place; similarly, vice versa. Therefore, through the combination of the two power devices 10, the machine can realize maneuvering operations such as forward movement, backward movement, and turning.

[0052] In summary, the technical solution of the present utility model can fully and effectively achieve the above-mentioned utility model purpose, and the structure and functional principle of the present utility model have been fully verified in the embodiments, and can achieve the expected efficacy and purpose. Without departing from the principle and essence of the present utility model, various changes or modifications can be made to the embodiments of the utility model. Therefore, the present utility model includes all replacement contents within the scope mentioned in the patent application scope. Any equivalent changes made within the patent application scope of the present utility model fall within the scope of the patent applied for in this case.

Claims

1. A power device, characterized in that: It includes a driving motor connected to the main control module, and main driving shafts that rotate synchronously are extended from the front and rear ends of the driving motor. The main driving shaft indirectly drives the driven shaft. A clutch device is provided between the main driving shaft and the driven shaft for driving the driven shaft and the main driving shaft to rotate according to the rotation direction of the main driving shaft. A rotating propeller for pushing water is installed on the driven shaft.

2. The power device according to claim 1, characterized in that: The clutch device includes a first sleeve and a second sleeve that cooperate with each other. The first sleeve is provided with a first transmission tooth, and the second sleeve is provided with a second transmission tooth that cooperates with the first transmission tooth. The first sleeve rotates synchronously with the main driving shaft through the inner cylinder, and the second sleeve rotates synchronously with the driven shaft; the direction of the second transmission tooth in the second sleeve on the front driven shaft is opposite to the direction of the second transmission tooth in the second sleeve on the rear driven shaft.

3. The power device according to claim 2, characterized in that: The end of the main driving shaft is arranged opposite to the end of the driven shaft; the inner cylinder rotates synchronously with the main driving shaft, the first sleeve is sleeved on the inner cylinder, the inner cylinder is provided with at least one outer protrusion for driving the first sleeve to rotate, the outer protrusion is provided with a push block for driving the outer cylinder to move linearly, the inner wall of the first sleeve is provided with an inner protrusion cooperating with the outer protrusion and a placement groove for inserting the push block, the placement groove is matched with an insert, the bottom protrusion of the insert and the bottom of the placement groove form a spiral limiting groove cooperating with the push block.

4. The power device according to claim 1, characterized in that: The clutch device includes a first sleeve and a second sleeve that cooperate with each other. The first sleeve is provided with a first transmission tooth, and the second sleeve is provided with a second transmission tooth that cooperates with the first transmission tooth. The first sleeve rotates synchronously with the main driving shaft, and the second sleeve rotates synchronously with the driven shaft; the direction of the second transmission tooth in the second sleeve on the front driven shaft is opposite to the direction of the second transmission tooth in the second sleeve on the rear driven shaft; an elastic member for pressing the first transmission tooth and the second transmission tooth to engage with each other is provided on one side of the first sleeve and / or the second sleeve.

5. The power device according to claim 4, characterized in that: The end of the main driving shaft is arranged opposite to the end of the driven shaft, the first sleeve is sleeved on the main driving shaft, and the second sleeve is sleeved on the driven shaft.

6. The power device according to claim 4, characterized in that: The driven shaft is sleeved on the main driving shaft, the first sleeve is sleeved on the main driving shaft, and the second sleeve is arranged on the driven shaft.

7. The power device according to claim 6, characterized in that: The driven shaft is integrated with the rotary propeller and / or the second sleeve.

8. The power device according to claim 1, characterized in that: A positioning seat is installed on the driven shaft or the main driving shaft to prevent the rotary propeller from falling off.

9. The power device according to claim 1, characterized in that: The driving motor is placed in the sealed chamber, and the sealed chamber is provided with a through hole for the main driving shaft or the driven shaft to pass through.

10. A swimming pool cleaning robot, comprising a housing, characterized in that: The shell is provided with an inner cavity, which is connected with a water inlet and a water outlet. A filtering device is also provided in the inner cavity. The water outlet is divided into a front water outlet and a rear water outlet. The shell is also provided with a power device as described in any one of claims 1 to 9 for discharging water entering the inner cavity from the water outlet to generate power. The rotating propeller at the front end is located in the corresponding front water outlet, and the rotating propeller at the rear end is located in the corresponding rear water outlet.

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