Diaphragm pump with two water outlet ends

Abstract

The diaphragm pump comprises a pump head body, the pump head body is provided with a water inlet, a water outlet flow channel, a water inlet cavity, a water outlet cavity and a booster cavity, the water inlet is communicated with the water inlet cavity, the water outlet cavity is communicated with the water outlet flow channel, and a one-way water flow control structure is arranged between the booster cavity and the water inlet cavity and between the booster cavity and the water outlet cavity. The water path switching valve seat is arranged on a water path of the water outlet flow channel, a first water outlet and a second water outlet are formed in the water path switching valve seat, the water path switching valve seat comprises a power part, a transmission part and a switching part, one side of the transmission part is movably connected with the power part, the other side of the transmission part is connected with the switching part, and the power part drives the transmission part to rotate; and the transmission part rotates and drives the switching part to do reciprocating rectilinear motion, so that water paths between the water outlet flow channel and the first water outlet and the second water outlet are connected or disconnected. Water can be supplied to two devices or waterways, the corresponding number of electromagnetic valves do not need to be added, and the system configuration cost when the diaphragm pump is used is effectively reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fluid delivery equipment, in particular to a diaphragm pump with two water outlets. BACKGROUND

[0002] The diaphragm pump is a commonly used fluid delivery equipment, and the existing diaphragm pump is provided with a booster chamber, a water inlet, a water outlet, a water inlet chamber and a water outlet chamber. The water inlet chamber is connected with the water inlet, the water outlet is connected with the water outlet chamber, and the booster chamber is connected with the water inlet chamber and the water outlet chamber through a one-way water flow structure. The principle is that the motor drives the eccentric component to perform eccentric motion, thereby forming extrusion or pulling on the booster chamber of the diaphragm pump, and then pumping water in or out.

[0003] The existing diaphragm pump has only one water outlet. When water needs to be supplied to two devices or two water paths respectively, a corresponding number of electromagnetic valves need to be connected to the water outlet water path, which results in a high system configuration cost when the diaphragm pump is used. SUMMARY

[0004] The purpose of the present application is to provide a diaphragm pump with two water outlets, which can supply water to two devices or water paths respectively without the need to increase a corresponding number of electromagnetic valves, thereby effectively reducing the system configuration cost when the diaphragm pump is used.

[0005] To solve the above technical problems, the present application adopts the following scheme: A diaphragm pump with two water outlets comprises a pump head body, a water inlet, a water outlet flow channel, a water inlet chamber, a water outlet chamber and a booster chamber are arranged on the pump head body. The water inlet is connected with the water inlet chamber, the water outlet chamber is connected with the water outlet flow channel, and the booster chamber is connected with the water inlet chamber and the water outlet chamber through a one-way water flow control structure. The water path switching valve seat is arranged on the water outlet flow channel, and the first water outlet and the second water outlet are arranged on the water path switching valve seat. The water path switching valve seat comprises a power part, a transmission part and a switching part. One side of the transmission part is movably connected with the power part, and the other side is connected with the switching part. The power part drives the transmission part to rotate, and the transmission part rotates and drives the switching part to reciprocate linearly to connect or block the water path between the water outlet flow channel and the first water outlet and the second water outlet.

[0006] In the existing diaphragm pump, the pump head body serves as the main body of the diaphragm pump, and is internally provided with a booster chamber, a water inlet, a water outlet flow channel, a water outlet chamber and a water inlet chamber. The water inlet chamber is connected with the water inlet, the water outlet flow channel is connected with the water outlet chamber, and the booster chamber is connected with the water inlet chamber and the water outlet chamber through a one-way water flow structure. The principle is that the motor drives the eccentric component to perform eccentric rotation, thereby forming extrusion or pulling on the booster chamber of the diaphragm pump, and then pumping water in or out.

[0007] In the scheme, a waterway switching valve seat connected with the pump head body is arranged on the waterway of the water outlet flow channel on the basis of the existing diaphragm pump. The waterway switching valve seat realizes dynamic switching of the waterway on-off between the water outlet flow channel and the first water outlet and the second water outlet, controls the water flow path, the power part provides switching power, the transmission part converts the rotary motion of the power part into the linear motion of the switching part, and the switching part directly controls the waterway on-off; the power part drives the transmission part to rotate, the transmission part converts the rotary motion into the reciprocating linear motion of the switching part, the switching part conducts the waterway between the water outlet flow channel and one of the water outlets, while blocking the waterway with the other water outlet; when needed, the power part reverses rotation again, the transmission part drives the switching part to block the waterway between the water outlet flow channel and one of the water outlets, while connecting the waterway with the other water outlet, so that the power part can realize the opposite waterway on-off state of the two water outlets by forward and reverse rotation as required, without the need to install a corresponding number of electromagnetic valves with the water outlet waterway, effectively reducing the system configuration cost when the diaphragm pump is used.

[0008] Optionally, a water passing cavity connected with the water outlet flow channel is arranged in the waterway switching valve seat, the switching part is arranged on the waterway connected with the first water outlet and the second water outlet, the transmission part is located on one side of the switching part, and the power part is located on the side of the transmission part away from the switching part. The power part is connected with the output shaft of the driving motor of the diaphragm pump. An elastic force transmission member is movably arranged on the side wall of the switching part. A threaded groove is arranged on the side wall of the transmission part, and one end of the elastic force transmission member abuts in the threaded groove.

[0009] Optionally, the switching part comprises a first control rod, a second control rod, a first spring and a second spring movably arranged in the waterway switching valve seat. The lower end of the first control rod abuts against the upper end of the second control rod. One end of the first spring acts on the top wall in the waterway switching valve seat, and the other end of the first spring acts on the first control rod. One end of the second spring acts on the bottom wall in the waterway switching valve seat, and the other end of the second spring acts on the second control rod. The first control rod is embedded with a first sealing ring and a second sealing ring on the side wall. The first sealing ring seals or blocks the waterway between the water passing cavity and the first water outlet, and the second sealing ring seals or blocks the waterway between the water passing cavity and the second water outlet. The power part rotates to make the elastic force transmission member move up and down and drive the first control rod to move up and down reciprocatingly through the second control rod. The up and down reciprocating movement of the first control rod changes the positions of the first sealing ring and the second sealing ring to make the waterway between the water passing cavity and the first water outlet and the second water outlet connected or blocked.

[0010] Optionally, a first water passing groove connected with the first water outlet is arranged on the side wall of the upper end of the first control rod. A second water passing groove connected with the second water outlet is arranged on the lower end of the first control rod. A third water passing groove connected with the second water outlet and the second water passing groove is arranged on the side wall of the upper end of the second control rod. The first sealing ring and the second sealing ring are located between the first water passing groove and the second water passing groove, and the first sealing ring is located above the second sealing ring. A third sealing ring located below the third water passing groove is arranged on the side wall of the upper end of the second control rod.

[0011] Optionally, the first control rod side wall is provided with a limiting plate between the first sealing ring and the second sealing ring, and the lower end of the first spring acts on the limiting plate.

[0012] Optionally, the waterway switching valve seat is provided with a first guide cavity, a second guide cavity and a third guide cavity from top to bottom, the first guide cavity is connected with the first water outlet, the second guide cavity is connected with the second water outlet, the upper end of the first control rod is slidably inserted into the first guide cavity, one end of the second control rod is slidably inserted into the second guide cavity, and the other end is slidably inserted into the third guide cavity, and the lower end of the second spring acts on the bottom wall of the third guide cavity.

[0013] Optionally, the elastic force transmission member includes a plug, a third spring and a sealing plate, the second control rod side wall is provided with a transverse mounting cavity, the mounting cavity extends away from the power part, the sealing plate is connected with the rear end of the mounting cavity, one end of the plug penetrates through the mounting cavity and abuts in the threaded groove, and the side wall of the plug is provided with a baffle limiting the plug from sliding out of the mounting cavity.

[0014] Optionally, the power part includes a fixed seat and a driving gear, the lower end of the fixed seat is connected with the driving gear, the output shaft of the driving motor penetrates through the driving gear and the fixed seat, the transmission part includes a stud, the stud is movably sleeved with a support column on one side of the output shaft, the outer wall of the stud is provided with a screw thread, and the screw thread and the side wall of the stud form a threaded groove, and the lower end of the stud is provided with a driven gear meshing with the driving gear.

[0015] Optionally, the top of the support column is provided with a limiting bolt limiting the stud from being separated from the support column.

[0016] Optionally, the pump head body is sequentially connected with a partition plate, a middle plate, an outer shell and a driving motor from bottom to top, the partition plate and the middle plate are tightly pressed with a booster diaphragm, one side of the booster diaphragm is recessed downward to form a booster cavity, the partition plate is provided with a water inlet hole and a water outlet hole connected with the booster cavity, the water inlet hole is connected with the water inlet cavity, the water outlet hole is connected with the water outlet cavity, and a one-way water flow control structure is arranged on the partition plate, the one-way water flow control structure includes a water inlet one-way diaphragm arranged at the water inlet hole and a water outlet one-way diaphragm arranged at the water outlet hole. An eccentric assembly for changing the volume of the booster cavity is arranged between the output shaft of the driving motor and the lower end of the booster cavity, the eccentric assembly includes a connecting rod and a push frame, one end of the connecting rod is eccentrically connected with the top surface of the fixed seat, the other end is connected with the push frame, one end of the push frame is connected with the bottom surface of the booster cavity, a first sealing gasket is arranged on the periphery of the water outlet cavity between the pump head body and the top end of the partition plate, and the pump head body is tightly pressed with a second sealing gasket in the periphery of the partition plate.

[0017] The present application has the beneficial effects: In the present application, the water outlet flow channel of the existing diaphragm pump is provided with a waterway switching valve seat connected with the pump head body, the waterway switching valve seat is provided with a first water outlet and a second water outlet, in operation, the power part drives the transmission part to rotate, the transmission part converts the rotary motion into the reciprocating linear motion of the switching part, the switching part conducts the waterway between the water outlet flow channel and one of the water outlets, and at the same time blocks the waterway with the other water outlet; then, according to the requirement, the power part reversely rotates again, the transmission part drives the switching part to block the waterway between the water outlet flow channel and one of the water outlets, and at the same time connects the waterway with the other water outlet, so that the power part can realize the opposite on-off state of the two water outlets by positive and reverse rotation as required, without the need to install the corresponding number of electromagnetic valves with the water outlet waterway, effectively reducing the system configuration cost during the use of the diaphragm pump. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present application; Figure 2 It is a structural schematic diagram of the power part; Figure 3 It is a structural schematic diagram of the transmission part; Figure 4 It is a structure diagram of the latch.

[0019] Reference signs: 01-driving motor, 02-output shaft, 03-limiting bolt, 04-stud, 05-supporting column, 06-fixing seat, 07-connecting rod, 08-outer shell, 09-pushing frame, 10-pressurizing diaphragm, 11-pressurizing cavity, 12-middle plate, 13-water inlet one-way diaphragm, 14-water inlet hole, 15-separation plate, 16-second sealing gasket, 17-water inlet cavity, 18-water outlet hole, 19-water outlet one-way diaphragm, 20-first sealing gasket, 21-pump head body, 22-water inlet, 23-water outlet cavity, 24-water outlet flow channel, 25-water passing cavity, 26-first control rod, 27-first water outlet, 28-valve cover, 29-first guide cavity, 30-first water passing groove, 31-bent section, 32-first sealing ring, 33-first spring, 34-first water sealing hole, 35-second sealing ring, 36-second water passing groove, 37-second water outlet, 38-second guide cavity, 39-third water passing groove, 40-third sealing ring, 41-second control rod, 42-sealing plate, 43-third spring, 44-baffle, 45-limiting plate, 46-third guide cavity, 47-second spring, 48-driving gear, 49-thread, 50-driven gear, 51-latch, 52-mounting cavity, 53-extension section, 54-thread groove, 55-second water sealing hole. DETAILED DESCRIPTION

[0020] The present application will be further described in detail below in combination with the embodiments and the drawings, but the embodiments of the present application are not limited thereto.

[0021] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "back", "top", "bottom", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present application is usually placed, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0022] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "provided", "opened", "mounted", "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. Embodiment

[0023] A diaphragm pump with two water outlets, comprising a pump head body 21, the pump head body 21 is provided with a water inlet 22, a water outlet flow channel 24, a water inlet cavity 17, a water outlet cavity 23, a booster cavity 11, the water inlet 22 is communicated with the water inlet cavity 17, the water outlet cavity 23 is communicated with the water outlet flow channel 24, the booster cavity 11 is provided with a one-way water flow control structure between the water inlet cavity 17 and the water outlet cavity 23, further comprising a waterway switching valve seat arranged on the waterway of the water outlet flow channel 24, the waterway switching valve seat is provided with a first water outlet 27 and a second water outlet 37, the waterway switching valve seat comprises a power part, a transmission part and a switching part, one side of the transmission part is movably connected with the power part, and the other side is connected with the switching part, the power part drives the transmission part to rotate, and the transmission part rotates and drives the switching part to reciprocate linearly to make the waterway between the water outlet flow channel 24 and the first water outlet 27 and the second water outlet 37 communicated or blocked.

[0024] In the existing diaphragm pump, the pump head body 21 is the main body of the diaphragm pump, and is provided with a booster cavity 11, a water inlet 22, a water outlet flow channel 24, a water outlet cavity 23 and a water inlet cavity 17. The water inlet cavity 17 is communicated with the water inlet 22, the water outlet flow channel 24 is communicated with the water outlet cavity 23, and the booster cavity 11 is communicated with the water inlet cavity 17 and the water outlet cavity 23 through a one-way water flow structure. The principle is that the motor drives the eccentric component to make eccentric rotary motion, so as to form extrusion or pulling on the booster cavity 11 of the diaphragm pump, and then the water is sucked or pumped out.

[0025] In this embodiment, as Figure 1As shown, on the basis of the existing diaphragm pump, a waterway switching valve seat connected with the pump head body 21 is arranged on the waterway of the water outlet flow channel 24. The waterway switching valve seat realizes dynamic switching of the waterway on-off between the water outlet flow channel 24 and the first water outlet 27 and the second water outlet 37, controls the water flow path, the power part provides switching power, the transmission part converts the rotary motion of the power part into the linear motion of the switching part, the switching part directly controls the waterway on-off, the initial state is assumed to be in the middle position, the water outlet flow channel 24 is blocked with the first water outlet 27 and the second water outlet 37 (or the default is connected to one end, depending on the design requirements), the power part drives the transmission part to rotate, the power part drives the transmission part to rotate, the transmission part converts the rotary motion into the reciprocating linear motion of the switching part, and the switching part conducts the waterway of the water outlet flow channel 24 and one of the water outlets while blocking the waterway of the other water outlet; when needed, the power part reverses again, the transmission part drives the switching part to block the waterway of the water outlet flow channel 24 and one of the water outlets while connecting the waterway of the other water outlet, so that the power part can realize the opposite on-off waterway state of the two water outlets by reversing as required, without the need to install electromagnetic valves corresponding to the number of water outlets, effectively reducing the system configuration cost of the diaphragm pump in use.

[0026] Further, the waterway switching valve seat is provided with a water passing cavity 25 connected with the water outlet flow channel 24, the switching part is arranged on the waterway connected with the first water outlet 27 and the second water outlet 37 in the water passing cavity 25, the transmission part is located on one side of the switching part, and the power part is located on the side of the transmission part away from the switching part. The output shaft 02 of the driving motor 01 of the diaphragm pump is connected with the power part, the elastic force transmission member is movably arranged on the side wall of the switching part, the threaded groove 54 is arranged on the side wall of the transmission part, and one end of the elastic force transmission member abuts in the threaded groove 54.

[0027] Further, the switching part includes a first control rod 26, a second control rod 41, a first spring 33 and a second spring 47 movably arranged in the waterway switching valve seat. The lower end of the first control rod 26 abuts against the upper end of the second control rod 41, one end of the first spring 33 acts on the top wall in the waterway switching valve seat, and the other end acts on the first control rod 26. One end of the second spring 47 acts on the bottom wall in the waterway switching valve seat, and the other end acts on the second control rod 41. The first control rod 26 is embedded with a first sealing ring 32 and a second sealing ring 35 on the side wall. The first sealing ring 32 seals or blocks the waterway between the water passing cavity 25 and the first water outlet 27, and the second sealing ring 35 seals or blocks the waterway between the water passing cavity 25 and the second water outlet 37. The power part rotates to make the elastic force transmission member move up and down and drive the first control rod 26 to move up and down reciprocatingly through the second control rod 41. The up and down reciprocating movement of the first control rod 26 changes the positions of the first sealing ring 32 and the second sealing ring 35 to make the waterway between the water passing cavity 25 and the first water outlet 27 and the second water outlet 37 connected or blocked.

[0028] Specifically, the first control rod 26 is located at the upper end of the second control rod 41, and under the pre-tightening force of the first spring 33 and the second spring 47, the lower end of the first control rod 26 abuts against the upper end of the second control rod 41, so as to ensure that the first control rod 26 and the second control rod 41 move synchronously. When the second control rod 41 moves upward, the first spring 33 is compressed, so as to store elastic potential energy for the first control rod 26 to move downward. When the second control rod 41 moves downward, the second spring 47 is compressed, so as to store elastic potential energy for the second control rod 41 to move upward. The second control rod 41 moves upward to drive the first control rod 26 to move upward and compress the first spring 33, until the first sealing ring 32 seals the water passage between the water passage 25 and the first water outlet 27. At this time, the water passage between the water passage 25 and the second water outlet 37 is connected, and the upward and downward movement of the two control rods realizes that the first water outlet 27 and the second water outlet 37 are in opposite on-off states according to actual needs.

[0029] Further, the upper end side wall of the first control rod 26 is provided with the first water passage 30 connected with the first water outlet 27, the lower end of the first control rod 26 is provided with the second water passage 36 connected with the second water outlet 37, the upper end side wall of the second control rod 41 is provided with the third water passage 39 connected with the second water outlet 37 and the second water passage 36, the first sealing ring 32 and the second sealing ring 35 are located between the first water passage 30 and the second water passage 36, and the first sealing ring 32 is located above the second sealing ring 35. The upper end side wall of the second control rod 41 is provided with the third sealing ring 40 located below the third water passage 39.

[0030] Specifically, the third sealing ring 40 seals the installation gap between the upper end of the second control rod 41 and the second guide cavity 38, so as to avoid water from penetrating into the left drive motor 01 from the installation gap.

[0031] Further, the side wall of the first control rod 26 is provided with the limiting plate 45 located between the first sealing ring 32 and the second sealing ring 35, and the lower end of the first spring 33 acts on the limiting plate 45.

[0032] Specifically, the limiting plate 45 is used to limit the displacement range of the downward movement of the first control rod 26. After the bottom surface of the limiting plate 45 contacts with the inner wall of the water passage switching valve seat, the first control rod 26 no longer moves downward.

[0033] Further, the water passage switching valve seat is internally provided with the first guide cavity 29, the second guide cavity 38 and the third guide cavity 46 from top to bottom. The first guide cavity 29 is connected with the first water outlet 27, the second guide cavity 38 is connected with the second water outlet 37, the upper end of the first control rod 26 is slidably inserted into the first guide cavity 29, one end of the second control rod 41 is slidably inserted into the second guide cavity 38, and the other end is slidably inserted into the third guide cavity 46. The lower end of the second spring 47 acts on the bottom wall of the third guide cavity 46.

[0034] Specifically, the first guide cavity 29 is formed by extending downward from the inner wall of the valve cover 28 at the upper end and forms the second water sealing port 55 at the lower end. The valve cover 28 is connected with the waterway switching valve seat and the pump head body 21, and the sealing ring is compressed between the two. When the first control rod 26 moves upward to the first sealing ring 32 to the lower end of the first guide cavity 29 to seal the second water sealing port 55, the waterway between the water passing cavity 25 and the first water outlet 27 is blocked. At this time, the second sealing ring 35 moves to the water passing cavity 25, the water passing cavity 25 is connected with the second water outlet 37 through the second water passing groove 36 and the third water passing groove 39, and the water in the water passing cavity 25 flows to the second water outlet 37 through the second water passing groove 36 and the third water passing groove 39. When the first control rod 26 moves downward to the first sealing ring 32 to be separated from the first guide cavity 29, the waterway at the second water sealing port 55 is connected, the water passing cavity 25 is connected with the first water outlet 27 through the first water passing groove 30, at this time, the water flows from the first water passing groove 30 to the first water outlet 27, and the second sealing ring 35 moves downward to contact with the first water sealing port 34 formed by the inner wall of the waterway switching valve seat. When the second sealing ring 35 is below the first water sealing port 34, the waterway of the first water sealing port 34 is sealed, that is, the second sealing ring 35 seals the waterway between the water passing cavity 25 and the second water outlet 37. The first water passing groove 30 corresponds to the second water passing groove 36 in up and down direction and is always connected with the second water outlet 37.

[0035] Further, the elastic force transmission member includes a plug 51, a third spring 43 and a sealing plate 42. The second control rod 41 is provided with a transverse mounting cavity 52 extending away from the power part. The sealing plate 42 is connected with the rear end of the mounting cavity 52. One end of the plug 51 penetrates through the mounting cavity 52 and abuts in the threaded groove 54. The side wall of the plug 51 is provided with a baffle 44 limiting the plug 51 from sliding out of the mounting cavity 52.

[0036] Specifically, as shown in FIG. 6, the second control rod 41 is provided with a transverse mounting cavity 52 extending away from the power part. The sealing plate 42 is connected with the rear end of the mounting cavity 52. One end of the plug 51 penetrates through the mounting cavity 52 and abuts in the threaded groove 54. The side wall of the plug 51 is provided with a baffle 44 limiting the plug 51 from sliding out of the mounting cavity 52. Figure 1 and Figure 4As shown, an extension section 53 is integrally formed at the right end of the second control rod 41, and a bent section 31 is arranged on the inner wall of the waterway switching valve seat and matched with the extension section 53. The bent section 31 hinders the extension section 53 from moving downward, thereby limiting the displacement range of the second control rod 41 moving downward. The mounting cavity 52 is arranged on the second control rod 41 and the extension section 53, and the end plate 42 is arranged at the rear end of the mounting cavity 52. The front end of the latch 51 penetrates through the side wall of the mounting cavity 52 and is inserted into the threaded groove 54. The front end of the latch 51 can be provided with a hemispherical or conical shape matched with the threaded groove 54 to improve the smoothness of transmission. The latch 51 and the second control rod 41 can relatively move. The baffle 44 is arranged in the mounting cavity 52 to limit the latch 51 from sliding out of the mounting cavity 52. The third spring 43 is arranged at one end of the end plate 42 and at the other end of the baffle 44. The third spring 43 provides a pre-tightening force to ensure that the latch 51 is always in contact with the threaded groove 54, thereby preventing transmission failure caused by vibration or clearance. The stiffness of the third spring 43 is matched with the thread pitch to avoid the latch 51 being stuck due to excessive stiffness or transmission delay due to insufficient stiffness. The elastic buffering effect of the third spring 43 can also absorb part of the vibration energy to reduce transmission noise. When the threaded groove 54 rotates, the vertical displacement of the latch 51 is limited, and the latch 51 can only move upward or downward relative to the screw direction, thereby realizing the linear movement of the first control rod 26 and the second control rod 41.

[0037] Further, the power part includes a fixed seat 06 and a drive gear 48, the lower end of the fixed seat 06 is connected with the drive gear 48, and the output shaft 02 of the drive motor 01 penetrates through the drive gear 48 and the fixed seat 06. The transmission part includes a stud 04, the stud 04 is movably sleeved with a support column 05 on one side of the output shaft 02, the outer wall of the stud 04 is provided with a screw thread 49, and the screw thread 49 and the side wall of the stud 04 form a threaded groove 54. The lower end of the stud 04 is provided with a driven gear 50 engaged with the drive gear 48.

[0038] Specifically, as shown in Figure 1 and Figure 2 The fixed seat 06 and the drive gear 48 are integrally formed, and the fixed seat 06 and the drive gear 48 are connected with the output shaft 02 and cannot rotate relative to each other. The rotation of the output shaft 02 of the drive motor 01 can drive the rotation of the drive gear 48, the rotation of the drive gear 48 can drive the rotation of the driven gear 50 engaged therewith, the rotation of the driven gear 50 can drive the rotation of the stud 04, and the rotation of the stud 04 can drive the rotation of the screw thread 49, thereby making the latch 51 move upward or downward along the screw thread. This is determined according to the rotation direction of the output shaft 02 of the drive motor 01. When the output shaft 02 rotates clockwise, the latch 51 moves upward, and when the output shaft 02 rotates counterclockwise, the latch 51 moves downward, as shown in Figure 3As shown, the screw thread 49 is helically arranged on the outer wall of the stud 04, and the outer wall of the stud 04 has a smooth section at the upper end. When the bolt 51 moves to the tail of the thread groove 54, the bolt 51 will not move upward any more due to the loss of the guidance of the thread groove 54. When the driving motor 01 reverses, the bolt 51 moves downward along the thread groove 54. The downward movement of the bolt 51 drives the second control rod 41 to move downward. The upper end of the second control rod 41 abuts against the lower end of the first control rod 26. The first spring 33 recovers the deformation. The downward movement of the second control rod 26 compresses the second spring 47, which stores elastic potential energy for the subsequent upward movement of the two control rods. The function of the second spring 47 is the same as that of the first spring 33. The reciprocating linear movement of the first control rod 26 switches the waterway connection or blockage between the water cavity 25 and the first water outlet 27 and the second water outlet 37.

[0039] Further, the support column 05 has a limiting bolt 03 at the top to limit the disengagement of the stud 04 and the support column 05.

[0040] Specifically, the support column 05 is upwardly extended from the inner wall of the shell 08. The top of the support column 05 is provided with a downwardly threaded hole. When the stud 04 is sleeved on the outer wall of the support column 05, the limiting bolt 03 is threadedly connected in the threaded hole. The head part of the limiting bolt 03 is larger than the diameter of the support column 05, so as to limit the stud 04 and avoid the disengagement of the stud 04 and the support column 05.

[0041] Further, the pump head body 21 is sequentially connected with the baffle 15, the middle plate 12, the shell 08 and the driving motor 01. The baffle 15 and the middle plate 12 are tightly pressed with the booster diaphragm 10. The booster diaphragm 10 has a booster cavity 11 formed by being concave downward on one side. The baffle 15 is provided with a water inlet hole 14 and a water outlet hole 18 connected with the booster cavity 11. The water inlet hole 14 is connected with the water inlet cavity 17, and the water outlet hole 18 is connected with the water outlet cavity 23. A one-way water flow control structure is arranged on the baffle 15. The one-way water flow control structure includes a water inlet one-way diaphragm 13 arranged at the water inlet hole 14 and a water outlet one-way diaphragm 19 arranged at the water outlet hole 18. The output shaft 02 of the driving motor 01 and the lower end of the booster cavity 11 are provided with an eccentric assembly for changing the volume of the booster cavity 11. The eccentric assembly includes a connecting rod 07 and a push bracket 09. One end of the connecting rod 07 is eccentrically connected with the top surface of the fixed seat 06, and the other end is connected with the push bracket 09. One end of the push bracket 09 is connected with the bottom surface of the booster cavity 11. The pump head body 21 and the top end of the baffle 15 are provided with a first sealing gasket 20 located in the circumferential direction of the water outlet cavity 23. The pump head body 21 and the baffle 15 are tightly pressed with a second sealing gasket 16 in the circumferential direction.

[0042] Specifically, the structure of the diaphragm pump itself and its working principle belong to the prior art, and will not be described again.

[0043] The working principle of the present application: the source water enters into the water inlet cavity 17 from the water inlet 22, the output shaft 02 of the driving motor 01 rotates clockwise to drive the fixed seat 06 to rotate, the fixed seat 06 rotates to drive the push frame 09 seat eccentric rotation through the connecting rod 07, and then pulls the booster diaphragm 10 to make the booster cavity 11 volume increase, the water in the water inlet cavity 17 is sucked into the booster cavity 11 through the water inlet hole 14 and the water inlet one-way diaphragm 13, then the push frame 09 extrudes the booster diaphragm 10, the volume of the booster cavity 11 is reduced, the water in the booster cavity 11 is pumped to the water outlet cavity 23 through the water outlet hole 18 and the water outlet one-way diaphragm 19, and then is delivered to the water passing cavity 25 through the water outlet flow channel 24, thereby completing the function of the diaphragm pump.

[0044] Taking the water path sealing between the water passing cavity 25 and the second water outlet 37 in the initial state as an example, the output shaft 02 rotates clockwise to drive the driving gear 48 to rotate, the driving gear 48 drives the driven gear 50 to rotate, the stud 04 also rotates with the driven gear 50, the screw thread 49 on the side wall of the stud 04 also rotates, the right side of the bolt 51 abuts in the threaded groove 54, the screw thread 49 rotates to make the bolt 51 be lifted, thereby driving the second control rod 41 to move upwards, the second control rod 41 moves upwards to push the first control rod 26 to move upwards and compress the first spring 33, when the first control rod 26 moves upwards to the first sealing ring 32 moves above the lower end of the first guide cavity 29, the water path between the water passing cavity 25 and the first water outlet 27 is blocked, at this time the second sealing ring 35 is separated from the inner wall of the water path switching valve seat and moves into the water passing cavity 25, the water passing cavity 25 is connected with the second water outlet 37 through the second water passing groove 36 and the third water passing groove 39, the water in the water passing cavity 25 flows to the second water outlet 37 through the second water passing groove 36 and the third water passing groove 39; when the first water outlet 27 needs to be watered, the driving motor 01 reverses to drive the driving gear 48 to reverse, the driving gear 48 drives the driven gear 50 to reverse, thereby driving the fixed seat 06 to reverse, so that the bolt 51 moves downward, thereby driving the second control rod 41 to move downward and compress the second spring 47, at the same time the first spring 33 also pushes the first control rod 26 to move downward, after the first control rod 26 moves downward to the first sealing ring 32 separates from the first guide cavity 29, the water passing cavity 25 is connected with the first water outlet 27 through the first water passing groove 30, at this time the water flows from the first water passing groove 30 to the first water outlet 27, at the same time the second sealing ring 35 moves downward to contact the first water sealing port 34 formed by the inner wall of the water path switching valve seat, when the second sealing ring 35 is below the first water sealing port 34, the water path of the first water sealing port 34 is sealed, that is, the second sealing ring 35 seals the water path between the water passing cavity 25 and the second water outlet 37. Through the forward and reverse rotation of the driving motor 01, the upward and downward reciprocating movement of the first control rod 26 and the second control rod 41 is realized, thereby realizing the switching and conduction of the water path between the first water outlet 27 and the second water outlet 37.

[0045] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in any form. Any simple modification, equivalent replacement, and improvement of the above embodiments, which are made according to the technical essence of the present application and within the spirit and principle of the present application, all belong to the protection scope of the technical scheme of the present application.

Claims

1. A diaphragm pump with two water outlet ends, comprising a pump head body (21), wherein the pump head body (21) is provided with a water inlet (22), a water outlet channel (24), a water inlet chamber (17), a water outlet chamber (23), and a boosting chamber (11), wherein the water inlet (22) is connected to the water inlet chamber (17), the water outlet chamber (23) is connected to the water outlet channel (24), and a one-way water flow control structure is provided between the boosting chamber (11) and the water inlet chamber (17) and the water outlet chamber (23), wherein the pump head body (21) is provided with a water inlet (22), a water outlet channel (24), and a boosting chamber (11). The invention also includes a waterway switching valve seat arranged on the waterway of the water outlet flow channel (24), wherein the waterway switching valve seat is provided with a first water outlet (27) and a second water outlet (37), and the waterway switching valve seat includes a power part, a transmission part, and a switching part, wherein one side of the transmission part is movably connected to the power part, and the other side is connected to the switching part, the power part drives the transmission part to rotate, and the transmission part rotates and drives the switching part to reciprocate linearly so that the waterway between the water outlet flow channel (24) and the first water outlet (27) and the second water outlet (37) is connected or blocked.

2. A diaphragm pump with two water outlet ends according to claim 1, characterized in that: A water passage chamber (25) connected to the water outlet channel (24) is provided in the water passage switching valve seat. The switching portion is provided on the water passage connecting the water passage chamber (25) with the first water outlet (27) and the second water outlet (37). The transmission portion is located on one side of the switching portion. The power portion is located on a side of the transmission portion away from the switching portion. The power portion is connected to the output shaft (02) of the driving motor (01) of the diaphragm pump. An elastic force transmission member is movably provided on the side wall of the switching portion. A threaded groove (54) is provided on the side wall of the transmission portion. One end of the elastic force transmission member abuts against the threaded groove (54).

3. A diaphragm pump with two water outlet ends according to claim 2, characterized in that: The switching part includes a first control rod (26), a second control rod (41), a first spring (33), and a second spring (47) movably arranged in the waterway switching valve seat. The lower end of the first control rod (26) abuts against the upper end of the second control rod (41). One end of the first spring (33) acts on the top wall of the waterway switching valve seat, and the other end acts on the first control rod (26). One end of the second spring (47) acts on the bottom wall of the waterway switching valve seat, and the other end acts on the second control rod (41). The first sealing ring (32) and the second sealing ring (35) are embedded in the side wall of the first control rod (26). The sealing ring (32) seals or blocks the water path between the water passage chamber (25) and the first water outlet (27), and the second sealing ring (35) seals or blocks the water path between the water passage chamber (25) and the second water outlet (37). The power unit rotates to cause the elastic force transmission member to move up and down and drive the first control rod (26) to move back and forth up and down through the second control rod (41). The first control rod (26) moves back and forth up and down to change the positions of the first sealing ring (32) and the second sealing ring (35), so that the water paths between the water passage chamber (25) and the first water outlet (27) and the second water outlet (37) are connected or blocked.

4. A diaphragm pump with two water outlet ends according to claim 3, characterized in that: The first control rod (26) is provided with a first water trough (30) connected to the first water outlet (27) on the upper side wall, the first control rod (26) is provided with a second water trough (36) connected to the second water outlet (37) on the lower side wall, the second control rod (41) is provided with a third water trough (39) connected to the second water outlet (37) and the second water trough (36) on the upper side wall, the first sealing ring (32) and the second sealing ring (35) are located between the first water trough (30) and the second water trough (36), and the first sealing ring (32) is located above the second sealing ring (35), and the second control rod (41) is provided with a third sealing ring (40) located below the third water trough (39) on the upper side wall.

5. A diaphragm pump with two water outlet ends according to claim 4, characterized in that: The side wall of the first control rod (26) is provided with a limiting plate (45) located between the first sealing ring (32) and the second sealing ring (35), and the lower end of the first spring (33) acts on the limiting plate (45).

6. A diaphragm pump with two water outlet ends according to claim 3, characterized in that: The waterway switching valve seat is provided with a first guide cavity (29), a second guide cavity (38), and a third guide cavity (46) from top to bottom. The first guide cavity (29) is connected to the first water outlet (27), and the second guide cavity (38) is connected to the second water outlet (37). The upper end of the first control rod (26) is slidably inserted in the first guide cavity (29), one end of the second control rod (41) is slidably inserted in the second guide cavity (38), and the other end is slidably inserted in the third guide cavity (46), and the lower end of the second spring (47) of the third guide cavity (46) acts on the bottom wall of the third guide cavity (46).

7. A diaphragm pump with two water outlet ends according to claim 3, characterized in that: The elastic force transmission member includes a latch (51), a third spring (43), and a sealing plate (42). A transverse mounting cavity (52) is provided on the side wall of the second control rod (41). The mounting cavity (52) extends in a direction away from the power unit. The sealing plate (42) is connected to the rear end of the mounting cavity (52). One end of the latch (51) passes through the mounting cavity (52) and abuts against the thread groove (54). A baffle (44) is provided on the side wall of the latch (51) to limit the latch (51) from sliding out of the mounting cavity (52).

8. A diaphragm pump with two water outlet ends according to claim 2, characterized in that: The power unit includes a fixed seat (06) and a driving gear (48). The lower end of the fixed seat (06) is connected to the driving gear (48). The output shaft (02) of the driving motor (01) passes through the driving gear (48) and the fixed seat (06). The transmission unit includes a stud (04). The stud (04) is movably connected to the support column (05) on one side of the output shaft (02). The outer wall of the stud (04) is provided with a screw thread (49). A screw thread groove (54) is formed between the screw thread (49) and the side wall of the stud (04). The lower end of the stud (04) is provided with a driven gear (50) meshing with the driving gear (48).

9. A diaphragm pump with two water outlet ends according to claim 8, characterized in that: A limiting bolt (03) is provided on the top of the support column (05) for limiting the stud (04) from separating from the support column (05).

10. A diaphragm pump with two water outlets according to claim 1, characterized in that: The pump head body (21) is sequentially connected to a partition (15), a middle plate (12), a housing (08) and a driving motor (01) below the pump head body (21); a boosting diaphragm (10) is pressed between the partition (15) and the middle plate (12); one side of the boosting diaphragm (10) is recessed downward to form a boosting chamber (11); a water inlet (14) and a water outlet (18) connected to the boosting chamber (11) are provided on the partition (15); the water inlet (14) is connected to the water inlet chamber (17); the water outlet (18) is connected to the water outlet chamber (23); a one-way water flow control structure is provided on the partition (15); the one-way water flow control structure includes a water inlet one-way diaphragm (13) provided at the water inlet hole (14) and a water outlet one-way diaphragm (19) provided at the water outlet hole (18); An eccentric assembly for changing the volume of the boost chamber (11) is provided between the output shaft (02) of the drive motor (01) and the lower end of the boost chamber (11). The eccentric assembly includes a connecting rod (07) and a push rack (09). One end of the connecting rod (07) is eccentrically connected to the top surface of the fixed seat (06), and the other end is connected to the push rack (09). One end of the push rack (09) is connected to the bottom surface of the boost chamber (11). A first sealing gasket (20) located in the circumferential direction of the water outlet chamber (23) is provided between the pump head body (21) and the top end of the partition (15). A second sealing gasket (16) is circumferentially pressed against the pump head body (21) and the partition (15).

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