Automatic drainer

Abstract

An automatic drainer comprises a sewer pipe, a sealing cover and a control device, the sealing cover can move up and down to open or close the sewer pipe, the control device comprises a motor and a transmission mechanism, the motor drives the sealing cover to move up and down through the transmission mechanism to open or close the sewer pipe, the sewer pipe is provided with a ratchet wheel installation part, and the transmission mechanism comprises a ratchet wheel and pawl assembly. The ratchet wheel and pawl assembly comprises a pawl and a ratchet wheel which are meshed with each other, the sewer pipe is provided with a ratchet wheel installation part, the ratchet wheel is rotatably arranged on the ratchet wheel installation part, the ratchet wheel installation part comprises an annular supporting part and a plurality of first balls, the first balls are supported between the annular supporting part and the ratchet wheel, and the motor can drive the pawl to rotate. The pawl can drive the ratchet wheel to rotate through meshing matching of the pawl and the ratchet wheel, the ratchet wheel can drive the first ball to roll when rotating, the force needed by the pawl for driving the ratchet wheel is reduced, and therefore the pawl can drive the ratchet wheel to rotate more easily, and the transmission mechanism operates more smoothly.

Description

Technical Field

[0001] The utility model relates to an automatic water discharger. Background Art

[0002] Chinese patent number CN219671544U discloses a fully automatic water discharger, which also includes a driving disk arranged in a housing, a connecting rod eccentrically connected to the driving disk at the lower end, a first swing arm connected to the upper end of the connecting rod at one end, a rotating shaft connected to the other end of the first swing arm, a push rod arranged on the rotating shaft at one end, an upper travel switch arranged above the first swing arm, and a lower travel switch arranged below the first swing arm, the push rod is located below the cover, the driving disk rotates to make the first swing arm swing up and down, the swing of the first swing arm drives the push rod to push the cover upward, the upper and lower sides of the first swing arm are respectively provided with a protruding first trigger part and a second trigger part, the upper travel switch and the lower travel switch are triggered by the first trigger part and the second trigger part of the swing arm, the contact area is larger, the triggering process is more reliable, and the occurrence of unsuccessful triggering or mis-triggering is avoided. The above-mentioned product drives the pawl to rotate by the motor, and then drives the ratchet to rotate by the engagement of the pawl with the ratchet wheel, but when used for a long time, the pawl will be difficult to drive the ratchet wheel to rotate, so that the lifting and lowering of the cover will be stuck during use. Utility Model Content

[0003] The utility model aims to provide an automatic drainer whose sealing cover can be smoothly lifted and lowered during use.

[0004] An automatic water discharger comprises a water discharge pipe, a sealing cover and a control device. The sealing cover can be moved up and down to open or close the water discharge pipe. The control device comprises a motor and a transmission mechanism. The motor drives the sealing cover to move up and down through the transmission mechanism to open or close the water discharge pipe. The water discharge pipe is provided with a ratchet mounting part. The transmission mechanism comprises a ratchet pawl assembly. The ratchet pawl assembly comprises a pawl and a ratchet. The pawl and the ratchet are meshed with each other. The water discharge pipe is provided with a ratchet mounting part. The ratchet is rotatably arranged on the ratchet mounting part. The ratchet mounting part comprises an annular support part and a plurality of first balls. The plurality of first balls are supported between the annular support part and the ratchet. The motor can drive the pawl to rotate. The pawl can drive the ratchet to rotate through the meshing cooperation between the pawl and the ratchet. When the ratchet rotates, it will drive the first balls to roll. While the first balls roll, they assist the rotation of the ratchet, thereby reducing the force required for the pawl to drive the ratchet, so that the pawl can more easily drive the ratchet to rotate, and the operation of the transmission mechanism is smoother.

[0005] The ratchet pawl assembly also includes a positioning cover, which is disposed on the ratchet and fixedly connected to the ratchet mounting portion. The ratchet is fixed to the ratchet mounting portion and connected to the pawl through the positioning cover.

[0006] A plurality of second balls arranged in a circumference are provided between the positioning cover and the ratchet wheel, and the ratchet wheel can also rotate on the positioning cover through the second balls. The simultaneous action of the first balls and the second balls makes the rotation of the ratchet wheel easier.

[0007] A first annular groove for positioning the first ball is formed on one end face of the ratchet. The first ball is inserted into the first annular groove. The first annular groove has positioning and limiting functions so that the ratchet can only rotate on the first ball in the direction of the first annular groove.

[0008] A second annular groove for positioning the second ball is formed on one end surface of the positioning cover. The second ball is inserted into the second annular groove. The second annular groove has positioning and limiting functions so that the ratchet can only rotate on the second ball in the direction of the second annular groove.

[0009] A plurality of first ball positioning grooves arranged at circumferential intervals are formed along the end of the annular support portion to facilitate the positioning and installation of the first balls.

[0010] The other end surface of the ratchet is formed with a plurality of second ball positioning grooves arranged at circumferential intervals, which facilitates the positioning and installation of the second balls.

[0011] The inner wall of the ratchet wheel is formed with an annular ratchet tooth, and the pawl includes a shaft and a plurality of pawl parts, the plurality of pawl parts are circumferentially arranged on the shaft and meshed with the annular ratchet tooth, the circumferentially arranged pawl parts are adapted to the annular ratchet tooth, and the motor drives the pawl parts to rotate through the shaft.

[0012] The transmission mechanism also includes a linkage shaft, a swing arm, a driving rod and a connecting rod. One end of the driving rod is eccentrically connected to the ratchet, the other end of the driving rod is rotatably connected to the swing arm, the other end of the swing arm is fixedly connected to the linkage shaft, the linkage shaft is rotatably connected to the sewer pipe, one end of the connecting rod is fixedly connected to the linkage shaft, and the other end of the connecting rod extends to below the cover to control the up and down movement of the cover. The driving rod finally drives the connecting rod to move up and down through the rotation of the ratchet, thereby controlling the opening or closing of the cover.

[0013] The swing arm includes two swing rods arranged at intervals, one end of the two swing rods extends vertically and interlocks with each other to form the linkage shaft, one end of the two swing rods is connected by the linkage shaft, and the other end of the two swing rods is connected by a connecting shaft, the driving rod is provided with a connecting hole, and the connecting shaft passes through the connecting hole of the driving rod, so that the transmission through the two swing rods is more stable.

[0014] The swing rod is provided with a protrusion, and the shaft sleeve is provided with a first limiting protrusion and a second limiting protrusion respectively located on the upper and lower sides of the protrusion, and the first limiting protrusion and the second limiting protrusion can limit the swing amplitude of the swing rod.

[0015] The down pipe includes an upper section and a lower section, the upper section includes an upper tube and an upper tube sleeve, the upper tube and the upper tube sleeve are through-connected, the lower section includes a lower tube, a lower tube sleeve, a shaft sleeve and a ratchet mounting portion, the upper tube sleeve and the lower tube are through-connected, the lower tube and the lower tube sleeve are through-connected, the shaft sleeve is arranged on the outer surface of the lower tube, the ratchet mounting portion extends outward along the outer surface of the lower tube, the upper section of the down pipe is installed on the wash basin, and the lower section is connected to the transmission mechanism.

[0016] The sealing cover comprises a lifting column extending to the lower tube and a cover plate for closing the upper tube, the linkage shaft passes through the shaft sleeve, the connecting rod passes through the outer peripheral surface of the lower tube and extends to below the lifting column, and the cover plate opens or closes the lower water pipe through the lifting movement of the connecting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of the utility model.

[0018] Figure 2 It is a structural schematic diagram of the utility model down pipe.

[0019] Figure 3 This is the internal structure diagram of the utility model.

[0020] Figure 4 It is a top view of the lower tube and the control device of the utility model.

[0021] Figure 5 for Figure 4 AA section view.

[0022] Figure 6 It is a structural schematic diagram of the transmission mechanism of the utility model.

[0023] Figure 7 It is a structural schematic diagram of the transmission mechanism of the utility model from another perspective. DETAILED DESCRIPTION

[0024] In order to more intuitively and completely understand the technical solution of the utility model, the following non-limiting feature description is now provided in conjunction with the accompanying drawings of the utility model:

[0025] like Figures 1 to 7 As shown, an automatic drain includes a drain pipe 1, a cover 2 and a control device. The cover can move up and down to open or close the drain pipe. The control device includes a motor 4 and a transmission mechanism. The motor drives the cover to move up and down through the transmission mechanism to open or close the drain pipe.

[0026] The sewer pipe 1 includes an upper section 11 and a lower section 12. The upper section 11 includes an upper pipe 111 and an upper pipe sleeve 112. The upper pipe 111 and the upper pipe sleeve 112 are connected through each other. The outer peripheral surface of the upper pipe 111 is formed with an external thread, and the inner wall of the upper pipe sleeve 112 is formed with an internal thread. The upper pipe 111 and the upper pipe sleeve 112 are connected by threads so that the upper pipe 111 passes through the upper pipe sleeve 112. During installation, the upper end of the upper pipe 111 is located on the upper side of the wash basin, and the section formed with the external thread is located on the lower side of the wash basin. The lower section 12 includes a lower tube 121, a lower tube sleeve 122, a shaft sleeve 123 and a ratchet mounting portion 59. The lower tube 123 and the lower tube sleeve 122 are connected in a through manner. The upper end of the lower tube 12 is engaged with the lower end of the lower tube sleeve 122. The inner wall of the lower tube sleeve 122 is provided with an internal thread. The outer peripheral surface of the lower end of the upper tube sleeve 112 is provided with an external thread. The upper tube sleeve 112 and the lower tube 121 are connected in a through manner by threading the lower tube sleeve 122 and the upper tube sleeve 112. A ratchet mounting portion 59 and a sleeve 123 are provided on the lower tube 121. The sleeve 123 is arranged horizontally and connected to the outer surface of the lower tube 121. The ratchet mounting portion 59 includes a mounting plate 591. The mounting plate 591 extends outward along the outer surface of the lower tube 121. A motor mounting seat 43 is also provided between the sleeve 123 and the mounting plate 591. The motor mounting seat 43, the lower tube 121, the sleeve 123 and the mounting plate 591 are integrally injection molded.

[0027] The control device includes a motor 4, a transmission mechanism, a power source 41, a control circuit board 42 and a sensing device. In the utility model, the power source 41 is a battery, the motor 4 is mounted on a motor mounting seat 43, the motor 4 drives the transmission mechanism to move the cover 2 up and down to open or close the sewer pipe 1, the control circuit board 42 connects the power source 41 and the motor 4, and a sensing element is arranged on the control circuit board 42. When the user approaches the sensing device, the sensing device transmits a signal to the sensing element, thereby driving the motor 4 to work. The above induction transmission method is a prior art and will not be described in detail here.

[0028] The transmission mechanism includes a ratchet pawl assembly, a linkage shaft 54, a swing arm 55, a driving rod 56 and a connecting rod 57. The ratchet pawl assembly includes a pawl 51, a ratchet 52 and a positioning cover 53. The pawl 51 and the ratchet 52 are meshed with each other. An annular ratchet tooth 521 is formed on the inner wall of the ratchet 52. The pawl 51 includes a shaft portion 511 and a plurality of pawl portions 512. The plurality of pawl portions 512 are circumferentially arranged on the shaft portion 511 and meshed with the annular ratchet tooth 521. The circumferentially arranged pawl portions 512 are adapted to the annular ratchet tooth 521. A gear assembly 592 is provided on the mounting plate 591, and the output shaft of the motor is in transmission connection with the gear assembly 592. A rotating shaft 593 is provided on the gear assembly 592. One section of the rotating shaft 593 is fixedly connected to the gear assembly 592, and the other section is connected to the shaft 511. The motor 4 drives the rotating shaft 593 to rotate through the gear assembly 592, and the rotating shaft 593 drives the shaft 511 to rotate, thereby driving the pawl portion 512 to rotate, and the ratchet 52 is driven to rotate through the engagement of the pawl 512 with the annular ratchet tooth 521.

[0029] The ratchet mounting portion 59 also includes an annular support portion 594 and a plurality of first balls 595. The annular support portion 594 is fixedly disposed on one side of the mounting plate 591. The gear assembly 592 is mounted on the other side of the mounting plate 591. A through hole 596 is formed on the mounting plate 591 for the rotating shaft 593 to pass through and connect with the shaft portion 511. A plurality of first ball positioning grooves arranged circumferentially at intervals are formed on the end edge of the annular support portion 594, and the first ball 595 is installed in the first ball positioning groove. A first annular groove 522 for positioning the first ball 595 is formed on one end face of the ratchet 52. A side cover of the ratchet 52 provided with the first annular groove 522 is provided on the annular support portion 594, so that the first ball 595 is loaded into the first annular groove 522. The first ball 595 can be rolled and clamped between the first ball positioning groove and the first annular groove 522. The first annular groove 522 has the function of positioning and limiting, so that the ratchet 522 can only rotate on the annular support portion 594 in the direction of the first annular groove 522. When the ratchet 52 cover is arranged on the annular support 594, a fixing portion 531 is formed on the outer peripheral surface of the positioning cover 53, and the bolt passes through the fixing portion 531 to fix the positioning cover 53 on the mounting plate 591, and the fixed positioning cover 53 is covered on the ratchet 52 to limit the ratchet 52 from being separated from the annular support portion 594. The other end surface of the ratchet 52 is formed with a plurality of second ball positioning grooves arranged at circumferential intervals, and the second ball 523 is installed in the second ball positioning groove. A second annular groove 532 for positioning the second ball 523 is formed on one end surface of the positioning cover 53. The second ball 523 is loaded into the second annular groove 532 so that the second ball 523 can be rotatably sandwiched between the second ball positioning groove and the second annular groove 532. The second annular groove 532 has the function of positioning and limiting, so that the ratchet 52 can only rotate in the fixing cover 53 in the direction of the second annular groove 532. The ratchet wheel 52 is rotatably mounted between the annular support portion 594 and the positioning cover 53 . Under the simultaneous action of the first ball 595 and the second ball 523 , the ratchet wheel 52 can rotate more easily.

[0030] The swing arm 55 includes two swing rods 551 arranged at intervals, one end of the two swing rods 551 extends vertically and interlocks with each other to form a linkage shaft 54, one end of the two swing rods 551 is connected by the linkage shaft 54, the linkage shaft 54 ​​passes through the connecting rod 57 and is fixed on the linkage shaft 54, one end of the connecting rod 57 is set in the shaft sleeve 123 and is fixedly connected to the linkage shaft 54, the other end of the connecting rod 57 extends to the bottom of the cover 2, and the linkage shaft 54 ​​can rotate in the shaft sleeve 123. The ratchet 52 is provided with an eccentric driving column 524, the positioning cover 53 is formed with a clearance hole 533 for the driving column 524 to pass through, one end of the driving rod 56 is provided with a sleeve hole 562 adapted to the driving column 522, the sleeve hole 562 is sleeved on the driving column 522, the other end of the driving rod 56 is rotatably connected to the swing arm 55 through the connecting shaft 58, the other end of the driving rod 56 is provided with a connecting hole 561, the connecting shaft 58 passes through the connecting hole 561 and is connected to the two swing rods 551, that is, the other ends of the two swing rods 551 are connected through the connecting shaft 58, and the two swing rods 551 make the transmission more stable. The swing rod 551 is provided with a protrusion 5511, and the shaft sleeve 123 is provided with a first limiting protrusion 1231 and a second limiting protrusion 1232 located at the upper and lower sides of the protrusion 5511 respectively, and the first limiting protrusion 1231 and the second limiting protrusion 1232 can limit the swing amplitude of the swing rod 551. The rotation of the ratchet wheel 52 causes the driving rod 56 to drive the connecting rod 57 to move up and down, thereby controlling the opening or closing of the cover 2.

[0031] The cover 2 includes a lifting column 21 extending to the lower tube 121 and a cover plate 22 for closing the upper tube 111. The linkage shaft 54 ​​passes through the shaft sleeve 123. The connecting rod 57 passes through the outer peripheral surface of the lower tube 121 and extends to the bottom of the lifting column 21. The cover plate 22 opens or closes the lower water pipe 1 through the lifting and lowering movement of the connecting rod 57. A circular array of blades 211 is provided at the connection between the lifting column 21 and the cover plate 22. The blades 211 can enable the lifting column 21 to move stably in the vertical direction when the cover plate 22 is lifted and lowered. A filter plate 23 is also provided on the lower tube 121. The filter plate 23 is embedded in the upper port of the lower tube 121. A avoidance hole 231 for the lifting column to pass through is formed in the center of the filter plate 23. A plurality of smaller striped holes are provided on the filter plate 23 for filtering debris discharged from the wash basin.

[0032] The shell 3 includes a first half shell and a second half shell, which are snap-connected. The shell 3 is arranged on the lower tube 121. The shell 3 wraps the transmission mechanism, the lower tube 121 and the control device, and the control device is prevented from contacting water through the protection of the shell 3.

[0033] When in use, when a person approaches the wash basin, the sensing device sends a signal to start the motor 4 to work, and the motor 4 rotates the rotating shaft 593 through the gear assembly 592, and the rotating shaft 593 drives the pawl 51 to rotate, and the pawl 51 engages with the ratchet 52 to rotate the ratchet 52, and the driving column 524 on the ratchet 52 starts to rotate, and the driving column 524 causes the swing arm 551 to swing through the connected driving rod 56, and the swing arm 551 causes the part of the connecting rod 57 extending to the drain pipe to tilt upward through the linkage shaft 54, thereby lifting the lifting column 21 and causing the cover plate 22 to open the drain pipe 1.

[0034] The above description is only a preferred embodiment of the present utility model, and therefore cannot be used to limit the scope of implementation of the present utility model. That is, equivalent changes and modifications made according to the scope of the patent application of the present utility model and the contents of the specification should still fall within the scope covered by the patent of the present utility model.

Claims

1. An automatic drain, characterized in that: The utility model comprises a downpipe, a sealing cover and a control device. The sealing cover can be moved up and down to open or close the downpipe. The control device comprises a motor and a transmission mechanism. The motor drives the sealing cover to move up and down to open or close the downpipe through the transmission mechanism. The downpipe is provided with a ratchet mounting part. The transmission mechanism comprises a ratchet pawl assembly. The ratchet pawl assembly comprises a pawl and a ratchet. The pawl and the ratchet are meshed with each other. The downpipe is provided with a ratchet mounting part. The ratchet can be rotatably arranged on the ratchet mounting part. The ratchet mounting part comprises an annular support part and a plurality of first balls. The plurality of first balls are supported between the annular support part and the ratchet.

2. The automatic drainer according to claim 1, characterized in that: The ratchet pawl assembly also includes a positioning cover, which is disposed on the ratchet and fixedly connected to the ratchet mounting portion.

3. The automatic drainer according to claim 2, characterized in that: A plurality of second rolling balls arranged circumferentially are arranged between the positioning cover and the ratchet wheel.

4. The automatic drainer according to claim 1, characterized in that: A first annular groove for positioning the first ball is formed on one end surface of the ratchet.

5. The automatic drainer according to claim 3, characterized in that: A second annular groove for positioning the second ball is formed on one end surface of the positioning cover.

6. The automatic drainer according to claim 1, characterized in that: A plurality of first ball positioning grooves arranged at intervals around a circumference are formed along the end of the annular support portion.

7. The automatic drainer according to claim 3, characterized in that: The other end surface of the ratchet is formed with a plurality of second ball positioning grooves which are arranged circumferentially and spaced apart.

8. The automatic drainer according to claim 1, characterized in that: An annular ratchet tooth is formed on the inner wall of the ratchet wheel. The pawl includes a shaft portion and a plurality of pawl portions. The plurality of pawl portions are circumferentially arranged on the shaft portion and meshed with the annular ratchet tooth.

9. An automatic drainer according to any one of claims 1 to 8, characterized in that: The transmission mechanism also includes a linkage shaft, a swing arm, a driving rod and a connecting rod, one end of the driving rod is eccentrically connected to the ratchet, the other end of the driving rod is rotatably connected to the swing arm, the other end of the swing arm is fixedly connected to the linkage shaft, the linkage shaft is rotatably connected to the sewer pipe, one end of the connecting rod is fixedly connected to the linkage shaft, and the other end of the connecting rod extends to below the cover to control the up and down movement of the cover.

10. The automatic drainer according to claim 9, characterized in that: The swing arm includes two swing rods arranged at intervals, one end of the two swing rods extends vertically and interlocks with each other to form the linkage shaft, one end of the two swing rods is connected by the linkage shaft, and the other end of the two swing rods is connected by a connecting shaft, and the driving rod is provided with a connecting hole, and the connecting shaft passes through the connecting hole of the driving rod.

11. The automatic drainer according to claim 10, characterized in that: The swing rod is provided with a protrusion, and the shaft sleeve is provided with a first limiting protrusion and a second limiting protrusion respectively located at the upper and lower sides of the protrusion.

12. The automatic drainer according to claim 9, characterized in that: The down pipe includes an upper section and a lower section, the upper section includes an upper tube and an upper tube sleeve, the upper tube and the upper tube sleeve are through-connected, the lower section includes a lower tube, a lower tube sleeve, a shaft sleeve and a ratchet mounting portion, the upper tube sleeve and the lower tube are through-connected, the lower tube and the lower tube sleeve are through-connected, the shaft sleeve is arranged on the outer surface of the lower tube, and the ratchet mounting portion extends outward along the outer surface of the lower tube.

13. The automatic drainer according to claim 12, characterized in that: The cover comprises a lifting column extending to the lower tube and a cover plate for closing the upper tube, the linkage shaft passes through the shaft sleeve, and the connecting rod passes through the outer peripheral surface of the lower tube and extends below the lifting column.

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