A switch

Abstract

The present invention proposes a switcher comprising a camshaft, a valve core, and a switch valve body. The switch valve body is provided with a plurality of inlets and outlets, wherein a plurality of inlets and outlets are equipped with valve cores. The switch valve body is provided with a camshaft, and the camshaft is provided with a plurality of protrusions sequentially along its axial direction, corresponding to the inlets and outlets, respectively. Adjacent protrusions are staggered at a certain angle. When any protrusion abuts the corresponding valve core, the control valve core is actuated to disengage the corresponding inlet or outlet. The switcher can achieve multi-way switching control, is highly integrated, reduces electrical components, and can reduce costs.

Description

Technical field

[0001] The present invention relates to the technical field of washing devices, in particular to a switcher. [Background Technology]

[0002] With the advancement of technology, existing fully automatic washing machines have gradually appeared with automatic detergent dispensing functions, which are controlled by the washing machine program and use a dispensing pump to dispense the detergent in the detergent storage container into the washing tub for washing according to the calculated detergent dispensing amount.

[0003] However, existing automatic dispensing washing machines usually dispense multiple detergents, such as laundry detergent, softener, disinfectant, etc. This requires multiple dispensing pumps to dispense the detergents separately, which results in a large number of dispensing pumps, a complex structure, and high costs. [Summary of the invention]

[0004] The purpose of the present invention is to solve the problems in the prior art and to provide a switch that can realize multi-way switching control, has high integration, reduces the number of powered devices, and can reduce costs.

[0005] To achieve the above-mentioned purpose, the present invention proposes a switch, including a camshaft, a valve core and a switching valve body, wherein the switching valve body is provided with a plurality of inlets and outlets, wherein a plurality of inlets and outlets are equipped with valve cores, and a camshaft is provided in the switching valve body, and the camshaft is provided with a plurality of protrusions corresponding to the inlets and outlets respectively in sequence along its axial direction, and two adjacent protrusions are staggered at a certain angle, and when any protrusion abuts against the corresponding valve core, the control valve core moves to disengage from the blockage of the corresponding inlet or outlet.

[0006] Preferably, it also includes a motor, a transmission switching mechanism, a drive shaft and a pump assembly. The motor can be controlled to output forward and reverse power. The transmission switching mechanism is used to control the power transmission between the motor and the camshaft or the drive shaft. The output end of the drive shaft is connected to the pump assembly. When the motor rotates forward, the transmission switching mechanism controls the camshaft and the motor to realize power transmission, and the motor controls the valve core movement through the camshaft, and the drive shaft does not rotate; when the motor rotates reversely, the transmission switching mechanism controls the drive shaft and the motor to realize power transmission, and the motor controls the drive shaft to rotate, driving the pump assembly to work, and the camshaft does not rotate.

[0007] Preferably, a transmission mechanism is also included, wherein the input end of the transmission mechanism is connected to the motor through a transmission switching mechanism, and the output end is connected to the camshafts in multiple switching valve bodies. When the motor rotates forward, the transmission switching mechanism controls the transmission mechanism and the motor to realize power transmission, and the motor controls the movement of multiple camshafts through the transmission mechanism.

[0008] Preferably, the transmission switching mechanism includes a first ratchet and a second ratchet, and the first ratchet and the second ratchet are arranged side by side on the output shaft of the motor. The tooth profiles of the first ratchet and the second ratchet are in opposite directions, and the pawls of the two ratchets are in opposite directions. The motor drives the camshaft and the drive shaft through the first ratchet and the second ratchet respectively. When the motor rotates forward, the first ratchet runs and drives the camshaft to move, and when the motor rotates reversely, the second ratchet runs and controls the movement of the drive shaft.

[0009] Preferably, it further includes a motor and a transmission mechanism, wherein the output end of the transmission mechanism is connected to the camshafts of multiple switching valve bodies, and the motor controls the rotation of the multiple camshafts through the transmission mechanism.

[0010] Preferably, the transmission mechanism includes a driving wheel and a plurality of driven wheels meshing with the driving wheel, and the driving wheel controls the rotation of the camshaft through the driven wheels.

[0011] Preferably, a hole is opened on the driving wheel, which serves as an encoding disk and can be used to read the working position status of the switch.

[0012] Preferably, a connecting rod mechanism is further included, a piston is provided in the pump assembly, the drive shaft is connected to the piston through the connecting rod mechanism, the piston is controlled to reciprocate in the cavity of the pump assembly through the connecting rod mechanism, the pump inlet of the pump assembly is connected to an outlet of the switching valve body, and the pump outlet of the pump assembly is connected to an inlet of the switching valve body.

[0013] Preferably, the valve core is installed on the valve seat of the inlet or outlet through a spring and blocks the inlet or outlet. When the valve core is acted upon by the camshaft, it moves, disengages from the blockage of the inlet or outlet, and opens the inlet or outlet.

[0014] The present invention integrates multiple inlet and outlet functions, switching, and pumping, achieving all functions with a single motor. This reduces both size and cost by eliminating the number of electrical components. The motor can switch multiple inlets and outlets and also dispense detergent. Furthermore, the pump module can be combined with a multi-inlet module or a multi-channel, multi-module to achieve one-to-many outputs, or multiple outputs with one control.

[0015] The features and advantages of the present invention will be described in detail through embodiments with reference to the accompanying drawings.

Brief Description of the Drawings

[0016] Figure 1 This is a structural diagram of a switch embodiment 1 of the present invention;

[0017] Figure 2 yes Figure 1 AA section diagram;

[0018] Figure 3 yes Figure 1 BB-direction cross-sectional diagram;

[0019] Figure 4 yes Figure 2 Schematic diagram of CC section;

[0020] Figure 5 yes Figure 2 DD-direction cross-sectional diagram;

[0021] Figure 6 It is a structural schematic diagram of a camshaft of a switcher of the present invention;

[0022] Figure 7 This is a schematic diagram of a switch embodiment 1 of the present invention, in which no valve cores are installed at ports A, a, and f, and the switch is in a normally open state;

[0023] Figure 8 This is a structural diagram of a switch embodiment 2 of the present invention;

[0024] Figure 9 This is a schematic structural diagram of a switch embodiment 3 of the present invention;

[0025] Figure 10 This is a schematic structural diagram of a switch embodiment 4 of the present invention;

[0026] Figure 11 It is a structural diagram of a switch embodiment 5 of the present invention.

[0027] In the figure, motor-1, transmission switching mechanism-2, first ratchet-21, second ratchet-22, first clutch device-23, second clutch device-24, drive shaft-20, transmission mechanism-3, driving wheel-31, driven wheel-32, camshaft-4, bump-41, valve core-5, spring-51, switching valve body-6, water inlet-7, detergent inlet-8, common outlet-9, common inlet-10, outlet-11, connecting rod mechanism-12, pump assembly-13, piston-14, pump inlet-15, pump outlet-16, storage chamber-17. [Specific implementation method]

[0028] Example 1

[0029] See Figures 1 to 6A switching device according to the present invention includes a camshaft 4, a valve core 5, and a switching valve body 6. The switching valve body 6 is provided with a plurality of inlets and outlets, several of which are equipped with valve cores 5. The switching valve body 6 is provided with a camshaft 4. The camshaft 4 is provided with a plurality of protrusions 41 arranged along its axial direction, corresponding to the inlets and outlets. Adjacent protrusions 41 are staggered at a predetermined angle. When any protrusion 41 abuts the corresponding valve core 5, the control valve core 5 is actuated to release the corresponding inlet or outlet. In this embodiment, the switching device has two switching valve bodies 6 equipped with camshafts. Each camshaft 4 is provided with six protrusions, with adjacent protrusions staggered at 60 degrees. The two switching valve bodies 6 are provided with 12 ports (inlets / outlets).

[0030] Furthermore, it also includes a motor 1, a transmission switching mechanism 2, a drive shaft 20 and a pump assembly 13. The motor 1 can be controlled to output forward and reverse power. The transmission switching mechanism 2 is used to control the power transmission between the motor 1 and the camshaft 4 or the drive shaft 20. The output end of the drive shaft 20 is connected to the pump assembly 13. When the motor 1 rotates forward, the transmission switching mechanism 2 controls the camshaft 4 and the motor 1 to realize power transmission, and the motor 1 controls the valve core 5 to move through the camshaft 4, and the drive shaft 20 does not rotate; when the motor 1 rotates reversely, the transmission switching mechanism 2 controls the drive shaft 20 and the motor 1 to realize power transmission, and the motor 1 controls the drive shaft 20 to rotate, driving the pump assembly 13 to work, and the camshaft 4 does not rotate.

[0031] Furthermore, it also includes a transmission mechanism 3, the input end of the transmission mechanism 3 is connected to the motor 1 through the transmission switching mechanism 2, and the output end is connected to the camshafts 4 in the multiple switching valve bodies 6. When the motor 1 rotates forward, the transmission switching mechanism 2 controls the transmission mechanism 3 and the motor 1 to realize power transmission, and the motor 1 controls the movement of the multiple camshafts 4 through the transmission mechanism 3.

[0032] Specifically, in this embodiment, the transmission switching mechanism 2 includes a first ratchet 21 and a second ratchet 22. The first ratchet 21 and the second ratchet 22 are arranged side by side on the output shaft of the motor 1. The tooth profiles of the first ratchet 21 and the second ratchet 22 are opposite in direction, and the pawls of the two ratchets are in opposite directions. The motor 1 drives the camshaft 4 and the drive shaft 20 through the first ratchet 21 and the second ratchet 22 respectively. When the motor 1 rotates forward, the first ratchet 21 runs and drives the camshaft 4 to move. When the motor 1 rotates reversely, the second ratchet 22 runs and controls the drive shaft 20 to move.

[0033] Specifically, in this embodiment, the transmission mechanism 3 includes a driving wheel 31 and two driven wheels 32 meshing with the driving wheel 31. The motor 1 controls the rotation of the driving wheel 31 via the first ratchet 21. The driving wheel 31 controls the rotation of the two camshafts 4 via the two driven wheels 32. Of course, the specific number of driven wheels 32 can be set as needed and is not limited to two.

[0034] Furthermore, the driving wheel 31 is provided with a hole, which is used as an encoding disk to read the station status of the switch, thereby achieving control.

[0035] Furthermore, the valve core 5 is installed on the valve seat of the inlet or outlet through the spring 51 and blocks the inlet or outlet. When the valve core 5 is acted upon by the camshaft 4, it moves, disengages from the blockage of the inlet or outlet, and opens the inlet or outlet.

[0036] See Figure 7 , the working principle of this embodiment:

[0037] 1. Motor 1 drives Figure 4 、 5 The two ratchet wheels rotate in opposite directions. When the first ratchet wheel 21 rotates clockwise, the driving wheel 31 rotates, while the drive shaft 20 does not rotate. Conversely, when the motor 1 rotates counterclockwise, the second ratchet wheel 22 rotates the drive shaft 20, driving the pump assembly 14.

[0038] 2. Motor 1 rotates clockwise: driving pulley 31 rotates, driving pulley 32, driving camshaft 4. When the raised point of camshaft 4's bump 41 contacts valve core 5, selector valve core 5 is pushed open, opening ports A and a. Spring 51 acts to hold the selector valve core 5 at the remaining ports, blocking them. When motor 1 is in different positions, all twelve ports open sequentially.

[0039] 3. Motor 1 moves counterclockwise: drives the pump assembly to work

[0040] 4. Position control: Use the opening of the driving wheel 31 as a coding disk, such as Figure 4 Based on this, the status of the switch position can be read to achieve control.

[0041] This embodiment combines the detergent flushing process, integrates multi-way inlet, multi-way outlet, switching and pump operations, and uses one motor to achieve all functions, which not only reduces the size but also reduces the number of powered devices and reduces costs.

[0042] Example 2

[0043] See Figure 8This embodiment differs from Embodiment 1 in that the transmission switching mechanism 2 includes two clutch mechanisms: a first clutch device 23 and a second clutch device 24 (the clutch devices utilize existing clutch mechanisms, and therefore the specific structure of the clutch devices is not shown in the figure). When the motor 1 is outputting power in the forward or reverse rotation direction, one of the first clutch device 23 and the second clutch device 24 is in a power-engaged state, while the other is in a power-disengaged state. The motor 1 transmits power to the corresponding camshaft 4 or drive shaft 20 via the power-engaged clutch mechanism. Furthermore, the left switching valve body 6 has a water inlet 7, four detergent inlets 8, and a common outlet 9 connected to the pump inlet 15 of the pump assembly 13. The right switching valve body 6 has five outlets 11 and a common inlet 10 connected to the pump outlet 16 of the pump assembly 13 via a storage chamber 17.

[0044] Furthermore, it also includes a connecting rod mechanism 12, a piston 14 is provided in the pump assembly 13, the drive shaft 20 is connected to the piston 14 through the connecting rod mechanism 12, and the piston 14 is controlled to reciprocate in the cavity of the pump assembly 13 by the connecting rod mechanism 12, the pump inlet 15 of the pump assembly 13 is connected to an outlet of the switching valve body 6, and the pump outlet 16 of the pump assembly 13 is connected to an inlet of the switching valve body 6.

[0045] See Figure 8 , the working principle of this embodiment:

[0046] 1. There are multiple valve cores 5 in the valve body 6, which correspond to the outlet or inlet one by one. As the camshaft 4 moves, one port is opened and the other ports are closed. At the same time, the valve core 5 can be removed individually to achieve a normally open valve core at that port.

[0047] 2. The transmission mechanism 3 drives multiple camshafts 4 at the same time, which can realize synchronous control of multiple ports.

[0048] 3. The motor 1 controls the transmission mechanism 3 in the forward direction and the connecting rod mechanism 12 in the reverse direction through two clutch mechanisms.

[0049] 4. The connecting rod mechanism 12 drives the piston 14 to move repeatedly, sucking the detergent into and discharging it from the storage chamber 16.

[0050] In this embodiment, the motor 1 can switch multiple inlets and outlets, and can also add detergent.

[0051] Example 3

[0052] See Figure 9In this embodiment, the difference from embodiment 2 is that there is only one switching valve body 6 equipped with a camshaft 4, and the switching valve body 6 has five detergent inlets 8 and a common outlet 9 connected to the pump inlet 15 of the pump assembly 13.

[0053] Example 4

[0054] See Figure 10 In this embodiment, the difference from embodiment 3 is that the switching valve body 6 has five outlets 11 and a common inlet 10 connected to the pump outlet 16 of the pump assembly 13.

[0055] In Example 3 and Example 4: the pump module can be combined with a multi-way inlet module or a multi-way multi-module to achieve one-output-multiple, or multiple-output-one control.

[0056] Example 5

[0057] See Figure 11 In this embodiment, a single power source controls the operation of two switching devices, comprising two switching valve bodies 6 equipped with camshafts 4. Specifically, the switching valve body 6 comprises a camshaft 4, a valve core 5, and a switching valve body 6. The switching valve body 6 is provided with a plurality of inlets and outlets, wherein the valve cores 5 are provided at a plurality of inlets and outlets. The switching valve body 6 is provided with a camshaft 4. The camshaft 4 is provided with a plurality of protrusions 41 arranged along its axial direction, corresponding to the inlets and outlets. Adjacent protrusions 41 are staggered at a certain angle. When any protrusion 41 abuts against the corresponding valve core 5, the valve core 5 is controlled to disengage from the corresponding inlet or outlet. Specifically, the switching valve body 6 comprises a motor 1 and a transmission mechanism 3. The output end of the transmission mechanism 3 is connected to the camshafts 4 of the two switching valve bodies 6. The transmission mechanism 3 comprises a driving wheel 31 and two driven wheels 32 meshing with the driving wheel 31. The driving wheel 31 controls the rotation of the two camshafts 4 via the driven wheels 32. Of course, the specific number of the switching valve body 6 and the driven wheel 32 can be set as needed and is not limited to two. Among them, the switching valve body 6 on the left has six detergent inlets 8, and the switching valve body 6 on the right has six outlets 11.

[0058] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. A switch, characterized in that: The invention comprises a camshaft (4), a valve core (5) and a switching valve body (6), wherein the switching valve body (6) is provided with a plurality of inlets and outlets, wherein a plurality of inlets and outlets are provided with valve cores (5), a camshaft (4) is provided in the switching valve body (6), and the camshaft (4) is provided with a plurality of protrusions (41) corresponding to the inlets and outlets in sequence along its axial direction, wherein two adjacent protrusions (41) are staggered at a certain angle, and when any protrusion (41) abuts against the corresponding valve core (5), the control valve core (5) moves away from blocking the corresponding inlet or outlet; The invention also includes a motor (1), a transmission switching mechanism (2), a drive shaft (20) and a pump assembly (13). The motor (1) can output forward and reverse power in a controlled manner. The transmission switching mechanism (2) is used to control the power transmission between the motor (1) and the camshaft (4) or the drive shaft (20). The output end of the drive shaft (20) is connected to the pump assembly (13). When the motor (1) rotates in the forward direction, the transmission switching mechanism (2) controls the camshaft (4) and the motor (1) to realize power transmission. The motor (1) controls the valve core (5) to move through the camshaft (4), and the drive shaft (20) does not rotate. When the motor (1) rotates in the reverse direction, the transmission switching mechanism (2) controls the drive shaft (20) and the motor (1) to realize power transmission. The motor (1) controls the drive shaft (20) to rotate, drives the pump assembly (13) to work, and the camshaft (4) does not rotate. The invention also includes a transmission mechanism (3), wherein the input end of the transmission mechanism (3) is connected to the motor (1) through the transmission switching mechanism (2), and the output end is connected to the camshafts (4) in the plurality of switching valve bodies (6); when the motor (1) rotates in the forward direction, the transmission switching mechanism (2) controls the transmission mechanism (3) and the motor (1) to realize power transmission, and the motor (1) controls the movement of the plurality of camshafts (4) through the transmission mechanism (3); The transmission switching mechanism (2) comprises a first ratchet (21) and a second ratchet (22); the tooth profiles of the first ratchet (21) and the second ratchet (22) are in opposite directions, and the pawls of the two ratchet wheels face in opposite directions; the motor (1) drives the camshaft (4) and the drive shaft (20) through the first ratchet (21) and the second ratchet (22) respectively; when the motor (1) rotates in the forward direction, the first ratchet (21) runs and drives the camshaft (4) to move; when the motor (1) rotates in the reverse direction, the second ratchet (22) runs and controls the drive shaft (20) to move.

2. A switch according to claim 1, characterized in that: The first ratchet (21) and the second ratchet (22) are arranged side by side on the output shaft of the motor (1).

3. The switch according to claim 1, wherein: It also includes a motor (1) and a transmission mechanism (3), wherein the output end of the transmission mechanism (3) is connected to the camshafts (4) of multiple switching valve bodies (6), and the motor (1) controls the rotation of the multiple camshafts (4) through the transmission mechanism (3).

4. A switch according to any one of claims 1 to 3, characterized in that: The transmission mechanism (3) comprises a driving wheel (31) and a plurality of driven wheels (32) meshed with the driving wheel (31), and the driving wheel (31) controls the rotation of the camshaft (4) through the driven wheels (32).

5. A switch according to claim 4, characterized in that: The driving wheel (31) has a hole formed thereon and is used as an encoding disk for reading the station status of the switch.

6. The switch according to claim 1, wherein: The invention also includes a connecting rod mechanism (12), a piston (14) is provided in the pump assembly (13), the drive shaft (20) is connected to the piston (14) through the connecting rod mechanism (12), and the piston (14) is controlled to reciprocate in the cavity of the pump assembly (13) through the connecting rod mechanism (12), the pump inlet (15) of the pump assembly (13) is connected to an outlet of the switching valve body (6), and the pump outlet (16) of the pump assembly (13) is connected to an inlet of the switching valve body (6).

7. The switch according to claim 1, wherein: The valve core (5) is installed on the valve seat of the inlet or outlet through a spring (51) and blocks the inlet or outlet. When the valve core (5) is subjected to the force of the camshaft (4), it moves and disengages from the blockage of the inlet or outlet, thereby opening the inlet or outlet.

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