Diaphragm pump and household intelligent equipment

Abstract

The invention provides a diaphragm pump and household intelligent equipment, the diaphragm pump comprises an eccentric wheel, the eccentric wheel comprises a wheel body and a connecting column arranged at the bottom end of the wheel body, and the bottom end of the connecting column is concaved inwards to form a mounting groove; a first mounting hole is formed in the center of the first bearing, the connecting column is arranged in the first mounting hole, and the wheel body is limited outside the bearing; a bearing sleeve is fixed to the middle of the bottom end of the support and provided with a second mounting hole, and the first bearing can be mounted in the second mounting hole. The connecting column, the first bearing and the bearing sleeve are connected in a sleeved mode, the mounting groove is formed in the bottom of the connecting column to be connected with the driving end of the intelligent device, more motor rotation kinetic energy is utilized, energy waste is reduced, meanwhile, the limited internal space of a product is fully utilized, the space of one motor is reduced, and the product cost is reduced; the product does not need to be equipped with an independent motor.

Description

Technical Field

[0001] The present invention relates to the technical field of pump bodies, and in particular to a diaphragm pump and a household intelligent device. Background Art

[0002] The current miniature diaphragm pumps on the market all consist of a complete system with internal components such as the power and conduction diaphragms. However, in current smart products such as sweeping robots, there is already a lot of excess motor rotational kinetic energy inside. If not fully utilized, it will lead to significant energy and space waste. Summary of the Invention

[0003] The present invention provides a diaphragm pump and a household smart device, which are used to solve the defect in the prior art that some smart products with motors have a large amount of residual motor rotational kinetic energy inside, which will lead to large energy waste and space waste if not fully utilized.

[0004] To achieve the above-mentioned purpose, the first technical solution of the present invention is: a diaphragm pump, comprising:

[0005] The eccentric wheel comprises a wheel body and a connecting column arranged at the bottom end of the wheel body, wherein the bottom end of the connecting column is concave to form a mounting groove;

[0006] a first bearing having a first mounting hole at its center, the connecting column being disposed in the first mounting hole and the wheel body being positioned outside the bearing;

[0007] The support has a bearing sleeve fixed in the middle of its bottom end, and the bearing sleeve is provided with a second mounting hole, and the first bearing can be mounted in the second mounting hole.

[0008] Furthermore, it also includes:

[0009] A swing frame is connected to the eccentric wheel via a transmission shaft, and the swing frame is tilted relative to the eccentric wheel;

[0010] The piston assembly is connected to the swing frame, and the movement of the swing frame drives the piston assembly to perform piston movement.

[0011] Furthermore, the piston assembly comprises:

[0012] a cylinder body, arranged on the support;

[0013] A piston, wherein a third mounting hole is provided on the cylinder body, the piston is connected to the cylinder body through the third mounting hole, and a groove is provided on the top of the piston;

[0014] a valve seat, a cover provided on the cylinder body, a suction hole and a discharge hole provided on the valve seat, a surrounding plate provided on the periphery of the discharge hole to separate the suction hole and the discharge hole, the suction hole being provided along the circumference of the discharge hole, and the suction hole and the discharge hole being both connected to the groove;

[0015] The valve core and the cover are arranged on the discharge hole.

[0016] Furthermore, a mounting post is provided at the top of the valve seat. The interior of the mounting post is hollow and is used to install an umbrella valve. The umbrella valve is used to cover or expose the suction hole.

[0017] Furthermore, a first boss is provided at the axis of the valve seat, and the plurality of discharge holes are provided along the outer circumference of the first boss;

[0018] The valve core includes a second boss and a shielding portion. The second boss is concave and is formed with a mounting groove adapted to the first boss. The shielding portion is used to shield the discharge hole.

[0019] Furthermore, a reinforcing rib is provided between the second boss and the shielding portion, and the reinforcing rib is connected to the second boss and is provided along the circumference of the second boss.

[0020] Furthermore, connecting ribs are provided on the periphery of the enclosure plate to separate the valve seat into a plurality of cavities, and each cavity is correspondingly provided with the suction hole, the discharge hole and the umbrella valve.

[0021] Furthermore, it also includes:

[0022] The cover body is provided with a water inlet pipe and a water outlet pipe, the water outlet pipe is arranged at the center of the cover body, and the water inlet pipe and the water outlet pipe are arranged at intervals.

[0023] Furthermore, a sealing ring is provided between the cover body and the valve seat.

[0024] A second aspect of the present invention further provides a home smart device, comprising:

[0025] Drive end; and

[0026] In the diaphragm pump as described in any of the above embodiments, the driving end can be inserted into the mounting groove and drive the eccentric wheel to rotate.

[0027] Compared with the prior art, the beneficial effects of the present invention are: by setting a connecting column, a first bearing and a bearing sleeve and setting a mounting groove at the bottom of the connecting column to connect with the driving end of the smart device, setting the bearing can reduce the friction coefficient between the driving end of the smart device and the connecting column, so that more motor rotational kinetic energy can be utilized, reducing energy waste, and at the same time making full use of the limited internal space of the product, saving space for one motor, reducing product costs, and the product no longer needs to be equipped with a separate motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 It is a structural schematic diagram of the diaphragm pump provided by the present invention;

[0030] Figure 2 This is an exploded structural diagram of the diaphragm pump provided by the present invention;

[0031] Figure 3 is a side view of the diaphragm pump provided by the present invention;

[0032] Figure 4 yes Figure 3 Sectional view of AA in the middle;

[0033] Figure 5 It is a structural schematic diagram of the piston provided by the present invention;

[0034] Figure 6 Schematic diagram of the structure of the valve seat provided by the present invention;

[0035] Figure 7 It is a structural schematic diagram of the valve core provided by the present invention;

[0036] Figure 8 It is a structural schematic diagram of the umbrella valve provided by the present invention;

[0037] Figure 9 It is a structural schematic diagram of the sealing ring provided by the present invention.

[0038] Reference numerals:

[0039] 10. Eccentric wheel; 11. Wheel body; 12. Connecting column; 13. Mounting groove; 20. First bearing; 21. First mounting hole; 30. Support; 40. Bearing sleeve; 41. Mounting block; 50. Swing frame; 60. Transmission shaft; 70. Cylinder body; 71. Third mounting hole; 80. Piston; 81. Groove; 90. Valve seat; 91. Enclosure; 92. Inner groove; 93. Outer groove; 94. Discharge hole; 95. Suction hole; 96. 6. First boss; 97. Mounting column; 98. First valley; 99. Second valley; 100. Valve core; 101. Second boss; 102. Shielding portion; 103. Reinforcing rib; 110. Umbrella valve; 120. Diaphragm chamber; 130. Cover body; 131. Water inlet pipe; 132. Water outlet pipe; 140. Sealing ring; 141. Outer ring; 142. Inner ring; 143. Connecting strip; 144. First ridge; 145. Second ridge. DETAILED DESCRIPTION

[0040] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0041] It is important to understand that diaphragm pumps are used in many smart home devices, such as sweeping robots, coffee machines, smart humidifiers, smart toilets, etc. These smart devices are equipped with motors to drive their operation. However, the motors inside these smart products have the problem of excess energy. If a separate motor is installed inside the product and connected to the diaphragm pump, the internal space will be insufficient or crowded, thus affecting the overall structure.

[0042] A common connection method is that the motor is directly mounted on the support 30 , and the motor shaft of the motor is connected to the eccentric wheel 10 , so that the rotation of the motor drives the eccentric wheel 10 to rotate and thus drives the entire diaphragm pump to move.

[0043] Combine Figures 1 to 4As shown, an embodiment of the present application provides a diaphragm pump, including an eccentric wheel 10, a first bearing 20, a support 30 and a bearing sleeve 40. The eccentric wheel 10 includes a wheel body 11 and a connecting column 12 arranged at the bottom end of the wheel body 11. The connecting column 12 is integrally connected to the wheel body 11. The bottom end of the connecting column 12 is concave to form a mounting groove 13. A first mounting hole 21 is provided in the center of the first bearing 20. The connecting column 12 is provided in the first mounting hole 21 and the wheel body 11 is limited outside the bearing. A bearing sleeve 40 is fixed in the middle of the bottom end of the support 30. The bearing sleeve 40 is provided with a second mounting hole. The aperture of the second mounting hole is larger than the outer diameter of the first bearing 20. In this way, during installation, the first bearing 20 can be installed in the second mounting hole.

[0044] By setting a connecting column 12, a first bearing 20 and a bearing sleeve 40 for connection and setting a mounting groove 13 at the bottom of the connecting column 12 to connect with the driving end of the smart device, setting a bearing can reduce the friction coefficient between the driving end of the smart device and the connecting column 12, so that more motor rotational kinetic energy can be utilized, reducing energy waste, and at the same time making full use of the limited internal space of the product, saving space for one motor, reducing product costs, and the product no longer needs to be equipped with a separate motor.

[0045] A plurality of mounting blocks 41 are provided on the outer periphery of the bottom of the support 30. The top surface of the mounting block 41 is tilted from one end toward the other end. A card slot adapted to the mounting block 41 is provided on the smart device, so that the support 30 and the smart device can be quickly installed by rotating and clamping.

[0046] In the present application, the notch of the mounting groove 13 is D-shaped. Of course, in other embodiments, it can be adjusted according to the structure of the docking driving end.

[0047] Combine Figure 2 and Figure 4 The diaphragm pump also includes a swing frame 50 and a piston assembly. The swing frame 50 is connected to the eccentric wheel 10 via a transmission shaft 60. The swing frame 50 is tilted relative to the eccentric wheel 10. The piston assembly is connected to the swing frame 50. The movement of the swing frame 50 drives the piston assembly to move as a piston 80. When the eccentric wheel 10 rotates, the transmission shaft 60 also rotates, driving the swing frame 50. The swing frame 50 swings up and down, driving the piston assembly to move as a piston 80, thereby achieving water intake or drainage.

[0048] Combine Figures 5 to 8Specifically, the piston assembly includes a cylinder body 70, a piston 80, a valve seat 90, a valve core 100 and an umbrella valve 110. The cylinder body 70 is set on the support 30 and locked by screws. The piston 80 is made of an elastic material, such as rubber. The top of the piston 80 is hollowed out to form three grooves 81. A third mounting hole 71 is provided on the cylinder body 70. The third mounting hole 71 is provided with three for mounting the piston 80. The outer wall of the groove 81 can pass through the third mounting hole 71. The driving end of the piston 80 has three independent conical structures. The lower end of the piston 80 passes through the cylinder body 70 and extends into the bracket. The Y-shaped structure on the top of the swing frame 50 is correspondingly sleeved on the three conical structures of the driving end of the piston 80.

[0049] The valve seat 90 is covered on the cylinder body 70. A surrounding plate 91 is provided on the top of the valve seat 90 to separate the valve seat 90 into an inner groove 92 and an outer groove 93. Three discharge holes 94 are provided in the middle of the inner groove 92 on the top surface of the valve seat 90. Each discharge hole 94 is in the shape of a curved strip. Three groups of suction holes 95 are provided in the middle of the outer groove 93 on the top surface of the valve seat 90. The three groups of suction holes 95 are arranged circumferentially along the three discharge holes 94. The top edge of the piston 80 is pressed between the cylinder body 70 and the valve seat 90, so that a sealing structure is formed between the cylinder body 70 and the valve seat 90. The piston 80 is covered on the bottom end of the valve seat 90 to form three independent diaphragm chambers 120. Each diaphragm chamber 120 contains an umbrella valve 110. Each umbrella valve 110 is in the shape of an inverted umbrella. The upper ends of the three umbrella valves 110 are movably inserted into the mounting column of the valve seat 90. The lower ends of the three umbrella valves 110 are movably covered on the three groups of suction holes 95 in a one-to-one correspondence, thereby controlling the one-way opening and closing of the three groups of suction holes 95. The valve core 100 is covered on the discharge hole 94, and the one-way opening and closing of the three discharge holes 94 are controlled by the valve core 100.

[0050] Furthermore, a first boss 96 is provided at the center of the valve seat 90, and three discharge holes 94 are arranged along the outer periphery of the first boss 96. The valve core 100 includes a second boss 101 and a shielding portion 102. The second boss 101 is concave and formed with a mounting groove 13 that mates with the first boss 96. The shielding portion 102 is used to shield the discharge holes 94. It should be understood that during installation, the second boss 101 fits over the first boss 96 and moves up and down relative to the first boss 96 when impacted. The first boss 96 serves as a positioning and guide to ensure smooth movement of the valve core 100. Multiple discharge holes 94 can be provided, and can also be of different shapes, depending on different needs, without limitation.

[0051] To facilitate installation, the valve core 100 may be made of an elastic material such as rubber. To prevent the valve core 100 from being damaged after multiple impacts and affecting subsequent use, a reinforcing rib 103 is provided between the second boss 101 and the shielding portion 102. The reinforcing rib 103 is connected to the second boss 101 and is provided along the circumference of the second boss 101. The reinforcing rib 103 stabilizes the structure between the second boss 101 and the shielding portion 102.

[0052] In the present application, three groups of suction holes 95, three umbrella valves 110 and three discharge holes 94 are provided. The number of suction holes 95 in each group is not limited and can be two, three, four, five, etc. Providing multiple suction holes 95 can speed up the flow of liquid.

[0053] The diaphragm pump also includes a cover 130, on which an inlet pipe 131 and an outlet pipe 132 are provided. The inlet pipe 131 is used to communicate with an external water source, and the outlet pipe 132 is provided at the center of the cover 130, with the inlet pipe 131 and the outlet pipe 132 spaced apart. The cover 130 is provided on the top surface of the valve seat 90 to form a discharge chamber and a suction chamber. The discharge chamber is formed by the inner groove 92 and the cover 130, and the suction chamber is formed by the outer groove 93 and the cover 130. The suction chamber is arranged in a circle around the discharge chamber to form an annular shape. The inlet pipe 131 is in communication with the suction chamber, and the outlet pipe 132 is in communication with the discharge chamber. The three groups of suction holes 95 are all located in the suction chamber, and the three diaphragm chambers 120 can be respectively communicated with the suction chamber through a corresponding group of suction holes 95.

[0054] Combine Figure 1 、 Figure 6 and Figure 9 To ensure a better seal, a sealing ring 140 is provided between the cover 130 and the valve seat 90. The sealing ring 140 is elastically configured, and its contours match those of the cover 130 and the valve seat 90. The sealing ring 140 comprises an outer ring 141, an inner ring 142, and a connecting strip 143 connecting the two rings. First ridges 144 with the same contour as the outer ring 141 are provided on the upper and lower surfaces of the outer ring 141, while second ridges 145 with the same contour as the inner ring 142 are provided on the upper and lower surfaces of the inner ring 142. Correspondingly, the valve seat 90 is provided with a first valley 98 that matches the first ridge 144, and a second ridge 99 that matches the second ridge 145. The interlocking ridges and valleys create a seal.

[0055] The principle of this diaphragm valve is: the eccentric wheel 10 rotates under the action of the external driving end, and the transmission shaft 60 rotates with the eccentric wheel 10. The transmission shaft 60 drives the swing frame 50 to swing eccentrically, causing the volume of the diaphragm chamber 120 to change. When the volume of the diaphragm chamber 120 changes from small to large, the three umbrella valves 110 open, the valve core 100 closes, and the three discharge holes 94 are blocked by the blocking portion 102. The external fluid enters the suction chamber from the water inlet pipe 131, and the fluid in the suction chamber is sucked into the three diaphragm chambers 120 through the three groups of suction holes 95 respectively. The volume of the diaphragm chamber 120 increases. When the volume of the diaphragm chamber 120 changes from large to small, the three umbrella valves 110 are closed, the valve core 100 is opened, and the fluid in the three diaphragm chambers 120 is discharged into the discharge chamber from the three discharge holes 94 respectively, and finally discharged through the outlet pipe 132.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A diaphragm pump, characterized in that: include: The eccentric wheel comprises a wheel body and a connecting column arranged at the bottom end of the wheel body, wherein the bottom end of the connecting column is concave to form a mounting groove; a first bearing having a first mounting hole at its center, the connecting column being disposed in the first mounting hole and the wheel body being positioned outside the bearing; The support has a bearing sleeve fixed in the middle of its bottom end, and the bearing sleeve is provided with a second mounting hole, and the first bearing can be mounted in the second mounting hole.

2. The diaphragm pump according to claim 1, characterized in that Also includes: A swing frame is connected to the eccentric wheel via a transmission shaft, and the swing frame is tilted relative to the eccentric wheel; The piston assembly is connected to the swing frame, and the movement of the swing frame drives the piston assembly to perform piston movement.

3. The diaphragm pump according to claim 2, characterized in that The piston assembly comprises: a cylinder body, arranged on the support; A piston, wherein a third mounting hole is provided on the cylinder body, the piston is connected to the cylinder body through the third mounting hole, and a groove is provided on the top of the piston; a valve seat, a cover provided on the cylinder body, a suction hole and a discharge hole provided on the valve seat, a surrounding plate provided on the periphery of the discharge hole to separate the suction hole and the discharge hole, the suction hole being provided along the circumference of the discharge hole, and the suction hole and the discharge hole being both connected to the groove; The valve core and the cover are arranged on the discharge hole.

4. The diaphragm pump according to claim 3, characterized in that A mounting post is also provided on the top of the valve seat. The interior of the mounting post is hollow and is used for mounting an umbrella valve. The umbrella valve is used to cover or expose the suction hole.

5. The diaphragm pump according to claim 3, characterized in that A first boss is provided at the axis of the valve seat, and the plurality of discharge holes are provided along the outer circumference of the first boss; The valve core includes a second boss and a shielding portion. The second boss is concave and is formed with a mounting groove adapted to the first boss. The shielding portion is used to shield the discharge hole.

6. The diaphragm pump according to claim 5, characterized in that A reinforcing rib is further provided between the second boss and the shielding portion. The reinforcing rib is connected to the second boss and is provided along the circumference of the second boss.

7. The diaphragm pump according to claim 6, characterized in that Connecting ribs are provided on the periphery of the enclosure plate to separate the valve seat into a plurality of cavities, and each cavity is correspondingly provided with the suction hole, the discharge hole and the umbrella valve.

8. The diaphragm pump according to claim 3, characterized in that Also includes: The cover body is provided with a water inlet pipe and a water outlet pipe, the water outlet pipe is arranged at the center of the cover body, and the water inlet pipe and the water outlet pipe are arranged at intervals.

9. The diaphragm pump according to claim 8, characterized in that A sealing ring is provided between the cover body and the valve seat.

10. A household smart device, characterized in that: include: Drive end; as well as The diaphragm pump according to any one of claims 1 to 9, wherein the driving end can be inserted into the mounting groove and drive the eccentric wheel to rotate.

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