Diaphragm and pump

Abstract

The utility model relates to the technical field of pump valves, and provides a diaphragm which comprises a base part, two mounting parts and at least two execution parts. The two mounting parts are symmetrically arranged at the two ends of the base part; the at least two execution parts are arranged on the peripheral side of the base part and distributed in the circumferential direction of the base part at intervals, the two faces, close to one end of the base part, of each execution part are each provided with an overturning groove for achieving overturning of the execution part, and the overturning direction of each execution part corresponds to the axis direction of the mounting part. Therefore, the installation of the diaphragm can be facilitated. In addition, a pump is also provided.

Description

Technical Field

[0001] The present application relates to the field of pumps and valves, and in particular to a diaphragm and a pump. Background Art

[0002] The diaphragm water pump provides circular motion through a driving member, and then uses a transmission structure to make the diaphragm inside the water pump do reciprocating motion to compress and stretch the air in the cup bag. Under the unidirectional conduction of the diaphragm, a pressure difference is generated between the discharge end or the water inlet end and the external atmospheric pressure, so that water is pressed into the water inlet end and then discharged from the discharge end.

[0003] In the related art, the diaphragm is installed on the valve seat and then fixed by the pump cover. Since the diaphragm has a certain unidirectional conduction direction, the installation of the diaphragm has positioning requirements. Misalignment and positioning may easily lead to installation failure or poor installation effect, and the operation is more troublesome, so improvement is needed. Utility Model Content

[0004] In order to facilitate the installation of a diaphragm, in a first aspect, the present application provides a diaphragm.

[0005] The diaphragm provided in this application adopts the following technical solution:

[0006] A diaphragm comprises a base, two mounting portions and at least two executing portions; the two mounting portions are symmetrically arranged at the two ends of the base; at least two executing portions are arranged on the peripheral side of the base and are distributed at intervals along the circumference of the base, and both sides of the executing portion close to one end of the base are provided with flipping grooves for realizing the flipping of the executing portion, and the flipping direction of the executing portion corresponds to the axial direction of the mounting portion.

[0007] By adopting the above technical solution, during the installation of the diaphragm, since the two installation parts are symmetrically arranged at the two ends of the base, both the positive and negative ends of the diaphragm can be installed on the valve seat, and the setting of the two flip grooves enables the actuator to always flip towards the axial direction of the installation part to ensure that the unidirectional conduction direction of the diaphragm is correct. Therefore, there is no need to distinguish between the positive and negative ends of the diaphragm for installation, which facilitates the installation of the diaphragm.

[0008] Preferably, the mounting portion comprises a mounting column and a plurality of positioning columns, and the plurality of positioning columns are evenly spaced along the circumference of the mounting column.

[0009] By adopting the above technical solution, by providing a mounting column and a plurality of positioning columns, the mounting column realizes the installation of the diaphragm, and the plurality of positioning columns realize the positioning installation of the diaphragm, thereby ensuring the accuracy and stability of the installation of the diaphragm.

[0010] Preferably, the number of the execution parts is four, and the four execution parts are evenly spaced along the circumference of the base.

[0011] By adopting the above technical solution, the number of the actuators is set to four, so as to be suitable for a four-cylinder pump, thereby improving the working efficiency of the pump.

[0012] In a second aspect, the present application provides a pump.

[0013] The present application provides a pump that adopts the following technical solution:

[0014] A pump comprises the diaphragm described above.

[0015] Preferably, the pump head includes a pump cover, a valve seat and a one-way valve, the number of the one-way valves corresponds to the number of the actuators of the diaphragm; the pump cover is provided with a water inlet channel and a water outlet channel, and the water inlet channel is isolated from the water outlet channel; the valve seat is provided at one end of the pump cover, the valve seat is provided with an input flow path and an output flow path, the input flow path is connected to the water inlet channel, the one-way valve is provided on the valve seat and enables the input flow path to be selectively connected in one direction toward the output flow path; the diaphragm is inserted into the valve seat and enables the output flow path to be selectively connected in one direction toward the water outlet channel; the pump body drives the one-way valve and the corresponding actuator on the diaphragm to work alternately.

[0016] By adopting the above technical solution, in actual applications, the fluid flows from the water inlet channel into the input flow path, and the pump body drives the one-way valve to work, so that the fluid flows from the input flow path to the output flow path. At this time, the pump body drives the one-way valve to stop working and drives the actuator of the diaphragm to work, so that the fluid flows from the output flow path to the water outlet channel to realize water pumping.

[0017] Preferably, the pump body includes a diaphragm seat, a base, a diaphragm, a transmission member and a driving member; the base is arranged on the driving member, the diaphragm seat is arranged on the base and connected to the valve seat; the diaphragm is arranged on the diaphragm seat, the diaphragm is used to unidirectionally transport fluid to the output flow path, the diaphragm has cup capsules, the number of the cup capsules corresponds to the number of the actuators, and the driving member is connected to all the diaphragms at the same time through the transmission member to force each of the cup capsules to deform in turn.

[0018] By adopting the above technical solution, by setting a diaphragm seat, a base, a diaphragm, a transmission member and a driving member, the driving member is connected to all the cup capsules through the transmission member to force each cup capsule to deform in turn, thereby realizing the alternating operation of the one-way valve and the corresponding actuator on the diaphragm, with a simple structure and stable operation.

[0019] Preferably, the transmission member includes an eccentric wheel, a connecting shaft and a crankshaft; the driving member has a power output shaft, the power output shaft is connected to the eccentric wheel, the connecting shaft is inclined to the eccentric wheel, and the crankshaft is arranged on the connecting shaft and connected to each of the cup capsules.

[0020] By adopting the above technical solution, an eccentric wheel, a connecting shaft and a crankshaft are provided to realize the connection between the driving member and the transmission member, and the connection between the transmission member and all the cup capsules. Such a setting can stably force the cup capsules to deform in sequence.

[0021] Preferably, the pump body further comprises at least two balls, and the at least two balls are rollingly connected to the base and abut against an end of the eccentric wheel away from the curved rod.

[0022] By adopting the above technical solution, at least two balls are arranged, and the balls abut against the end of the eccentric wheel away from the crankshaft, so that the eccentric wheel is only connected to the power output shaft of the driving member, the force on the driving member can be reduced, thereby reducing the wear inside the driving member and increasing the service life of the driving member.

[0023] Preferably, the pump head also includes a check seat, a stop plate and an elastic member, the check seat is arranged between the pump cover and the valve seat, the check seat is provided with a connecting hole and a connecting groove, the connecting hole is selectively connected to the output flow path, the connecting groove is connected to the water outlet channel, and the elastic member is arranged between the stop plate and the pump cover to drive the stop plate to block the connecting hole.

[0024] By adopting the above technical solution, by providing a check seat, a stop plate and an elastic member, the elastic member drives the stop plate to block the connecting hole, which can avoid the fluid in the water outlet channel from flowing back to the output flow path as much as possible, thereby improving the stability of the pump operation.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. During the installation of the diaphragm, since the two mounting parts are symmetrically arranged at the two ends of the base, both the positive and negative ends of the diaphragm can be installed on the valve seat, and the two flip grooves are arranged so that the actuator can always flip toward the axial direction of the mounting part to ensure that the diaphragm is in the correct direction of unidirectional conduction. Therefore, there is no need to distinguish the positive and negative ends of the diaphragm for installation, which facilitates the installation of the diaphragm;

[0027] 2. By setting the installation column and multiple positioning columns, the installation column realizes the installation of the diaphragm, and the multiple positioning columns realize the positioning installation of the diaphragm, thereby ensuring the accuracy and stability of the diaphragm installation;

[0028] 3. By arranging at least two balls, the balls abut against the end of the eccentric wheel away from the crankshaft, so that the eccentric wheel is only connected to the power output shaft of the driving member, the force on the driving member can be reduced, thereby reducing the wear inside the driving member and increasing the service life of the driving member. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the pump in the embodiment of the present application;

[0030] Figure 2 It is a schematic diagram of the pump head explosion structure in an embodiment of the present application;

[0031] Figure 3 It is a schematic diagram of the pump head explosion structure in an embodiment of the present application;

[0032] Figure 4 is a schematic diagram of the cross-sectional structure of a pump in an embodiment of the present application;

[0033] Figure 5 is a schematic diagram of the overall structure of the diaphragm in the embodiment of the present application;

[0034] Figure 6 It is a schematic diagram of the explosion structure of the pump body in the embodiment of the present application.

[0035] 1. Pump head; 11. Pump cover; 111. Water inlet channel; 112. Water outlet channel; 12. Valve seat; 121. Input flow path; 122. Output flow path; 123. Mounting hole; 124. Through hole; 125. Plug-in slot; 13. One-way valve; 14. Diaphragm; 141. Base; 142. Mounting part; 142a. Mounting column; 142b. Positioning column; 143. Actuator; 144. Flip slot; 15. Check seat; 151. Connecting hole; 152. Connecting slot; 16. Stop plate; 17. Elastic member; 2. Pump body; 21. Diaphragm seat; 22. Base; 23. Diaphragm; 231. Cup capsule; 24. Transmission member; 241. Eccentric wheel; 242. Connecting shaft; 243. Crank rod; 25. Driving member; 26. Ball. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-6 This application is described in further detail.

[0037] The embodiment of the present application discloses a pump.

[0038] Reference Figure 1 and Figure 2 The pump includes a pump head 1 and a pump body 2. Specifically, the pump head 1 includes a pump cover 11, a valve seat 12, a one-way valve 13 and a diaphragm 14. The pump cover 11 is generally arranged in a round cover shape. The pump cover 11 is provided with a water inlet channel 111 and a water outlet channel 112 connected to the outside. The water inlet channel 111 is isolated from the water outlet channel 112, that is, the water inlet channel 111 and the water outlet channel 112 are not connected to each other.

[0039] Reference Figure 2 and Figure 3The valve seat 12 is generally in a round block shape and is disposed at the lower end of the pump cover 11. An input flow path 121 is provided along its circumference at one end of the valve seat 12 close to the pump cover 11. The input flow path 121 is connected to the water inlet channel 111. An output flow path 122 is also provided in the valve seat 12, and the output flow path 122 is selectively connected to the input flow path 121.

[0040] Reference Figure 3 and Figure 4 At the same time, the valve seat 12 is located at the bottom of the input flow path 121 and is also provided with a mounting hole 123. The one-way valve 13 is installed in the mounting hole 123, and the valve seat 12 is located at the circumference of the mounting hole 123 and is provided with a plurality of through holes 124. The two ends of the through holes 124 are respectively connected with the input flow path 121 and the output flow path 122. In the natural state, the one-way valve 13 is blocked at the lower end of the through hole 124. At this time, the output flow path 122 is isolated from the input flow path 121. When the one-way valve 13 moves downward under pressure, the one-way valve 13 releases the blocking of the through hole 124, so that the input flow path 121 is unidirectionally connected to the output flow path 122, thereby realizing the one-way selective connection between the output flow path 122 and the input flow path 121. In this embodiment, the number of the one-way valves 13 is four, so that the input flow path 121 is divided into four flow paths to four output flow paths 122 and merged into one flow path.

[0041] At the same time, the output flow path 122 is selectively connected to the water outlet channel 112 in one direction. The valve seat 12 is provided with a plug-in groove 125 at the confluence of the output flow path 122, and the diaphragm 14 is plugged into the plug-in groove 125. Similarly, when the diaphragm 14 is in a natural state, the diaphragm 14 blocks the output flow path 122. At this time, the output flow path 122 is isolated from the water outlet channel 112. When the diaphragm 14 is turned upward under pressure, the diaphragm 14 releases the blockage of the output flow path 122, so that the output flow path 122 is connected to the water outlet channel 112 in one direction, thereby realizing the one-way selective connection between the output flow path 122 and the water outlet channel 112.

[0042] The pump body 2 is disposed at the lower end of the valve seat 12 , and the pump body 2 drives the one-way valve 13 and the diaphragm 14 to work alternately, that is, the one-way valve 13 and the diaphragm 14 are alternately driven by pressure to move.

[0043] In actual application, the fluid flows into the input flow path 121 from the water inlet channel 111, and the pump body 2 works so that the one-way valve 13 moves downward under pressure, and the one-way valve 13 releases the blockage of the through hole 124, so that the fluid flows from the input flow path 121 to each output flow path 122 through the through hole 124. At this time, the pump body 2 works to release the pressure on the one-way valve 13, so that the one-way valve 13 resets the blocked through hole 124, and the diaphragm 14 flips upward under pressure, and the diaphragm 14 releases the blockage of each output flow path 122, so that the fluid flows from the output flow path 122 to the water outlet channel 112, so as to realize the water pumping operation.

[0044] Reference Figure 5 In some embodiments, the diaphragm 14 includes a base 141, two mounting portions 142 and an actuator 143. The base 141 is arranged in a rectangular block shape. The two mounting portions 142 are symmetrically connected to the upper and lower ends of the base 141 and one of the mounting portions 142 is plugged into the plug-in slot 125. The number of actuators 143 corresponds to the number of one-way valves 13, that is, the number of actuators 143 is four, and the four actuators 143 are respectively connected to the four peripheral sides of the base 141, and each actuator 143 is provided with a flip groove 144 on both sides close to one end of the base 141 to achieve the flipping of the actuator 143, thereby achieving the unblocking of the output flow path 122. Among them, the flipping direction of the actuator 143 corresponds to the axial direction of the mounting portion 142, that is, the flipping direction of the actuator 143 is upward. It should be noted that the four actuators 143 can be used for a four-cylinder pump to improve the working efficiency of the pump, especially for a 27mm micro pump.

[0045] During the installation of the diaphragm 14, since the two installation parts 142 are symmetrically arranged at the two ends of the base 141, both the front and back ends of the diaphragm 14 can be inserted into the insertion groove 125, and the setting of the two flip grooves 144 enables the execution part 143 to always be flipped upward to ensure that the unidirectional conduction direction of the diaphragm 14 is correct. Therefore, there is no need to distinguish the front and back ends of the diaphragm 14 for installation, thereby facilitating the installation of the diaphragm 14.

[0046] In some embodiments, the mounting portion 142 includes a mounting column 142a and four positioning columns 142b. The mounting column 142a and the four positioning columns 142b are all arranged in a rectangular column shape. One end of the mounting column 142a is connected to the base 141, and the four positioning columns 142b are connected to the four peripheral sides of the mounting column 142a. The mounting column 142a realizes the installation of the diaphragm 14, and the multiple positioning columns 142b realize the positioning and installation of the diaphragm 14, thereby ensuring the accuracy and stability of the installation of the diaphragm 14.

[0047] Reference Figure 3 and Figure 4In some embodiments, the pump head 1 further includes a check seat 15, a stop plate 16 and an elastic member 17. The check seat 15 is disposed between the pump cover 11 and the valve seat 12, and the check seat 15 is provided with a communicating hole 151 and a communicating groove 152 that are connected to each other. The communicating hole 151 is located above the diaphragm 14, and under the action of the diaphragm 14, the communicating hole 151 is selectively connected to the output flow path 122. The communicating groove 152 is disposed on the peripheral side of the check seat 15 and is connected to the output flow path 122. The elastic member 17 is a spring, one end of the elastic member 17 elastically abuts against the upper end of the stop plate 16, and the other end abuts against the pump cover 11, so that the stop plate 16 blocks the communicating hole 151 under the drive of the elastic member 17, which can effectively prevent the fluid in the water outlet channel 112 from flowing back to the output flow path 122, so as to improve the working stability of the pump.

[0048] Reference Figure 4 and Figure 6 In some embodiments, the pump body 2 includes a diaphragm seat 21, a base 22, a diaphragm 23, a transmission member 24 and a driving member 25. The base 22 is mounted on the driving member 25. The diaphragm seat 21 is mounted on the base 22 and connected to the valve seat 12. The diaphragm 23 is mounted in the diaphragm seat 21, and the diaphragm 23 is used to unidirectionally transport fluid to the output flow path 122. Among them, the diaphragm 23 has cup capsules 231 corresponding to the number of the actuators 143. The driving member 25 is a driving motor. The driving member 25 is connected to the four cup capsules 231 through the transmission member 24 and forces each cup capsule 231 to deform in sequence. The cup capsules 231 realize the alternating operation of the one-way valve 13 and the corresponding actuator 143 on the diaphragm 14 during the deformation process. The structure is simple and the operation is stable, so as to ensure the stability of the pump operation.

[0049] Reference Figure 6 In some embodiments, the transmission member 24 includes an eccentric wheel 241, a connecting shaft 242 and a crank rod 243. The eccentric wheel 241 is fixedly connected to the power output shaft of the driving member 25. The connecting shaft 242 is tilted and fixedly connected to the eccentric wheel 241. The crank rod 243 is fixedly connected to the connecting shaft 242, and the crank rod 243 is connected to the lower end of each cup capsule 231. The driving member 25 drives the eccentric wheel 241 to rotate, so that the crank rod 243 drives each cup capsule 231 to deform in turn, so as to improve the stability of the deformation of the cup capsule 231, thereby improving the stability of the pump operation.

[0050] In some embodiments, the pump body 2 also includes at least two ball bearings 26. In this embodiment, two ball bearings 26 are set according to the actual size and installation structure of the pump. The two ball bearings 26 are rollingly connected to the upper end of the base 22, and each ball bearing 26 abuts against the lower end of the eccentric wheel 241, so that the eccentric wheel 241 is only connected to the power output shaft of the driving member 25, which can reduce the force on the driving member 25, thereby reducing the wear inside the driving member 25 and increasing the service life of the driving member 25.

[0051] The implementation principle of this embodiment is as follows: in actual application, the fluid flows from the water inlet channel 111 into the input flow path 121, and the pump body 2 works so that the one-way valve 13 moves downward under pressure, and the one-way valve 13 releases the blockage of the through hole 124, so that the fluid flows from the input flow path 121 to each output flow path 122 through the through hole 124. At this time, the pump body 2 works to release the pressure on the one-way valve 13, so that the one-way valve 13 is reset to block the through hole 124, and the diaphragm 14 is turned upward under pressure, and the diaphragm 14 releases the blockage of each output flow path 122, so that the fluid flows from the output flow path 122 to the water outlet channel 112, so as to realize the water pumping operation;

[0052] Among them, during the installation process of the diaphragm 14, since the two installation parts 142 are symmetrically arranged at the two ends of the base 141, both the front and back ends of the diaphragm 14 can be inserted into the insertion groove 125, and the setting of the two flip grooves 144 enables the execution part 143 to always be flipped upward to ensure that the unidirectional conduction direction of the diaphragm 14 is correct. Therefore, there is no need to distinguish the front and back ends of the diaphragm 14 for installation, thereby facilitating the installation of the diaphragm 14.

[0053] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A diaphragm, characterized in that: The invention comprises a base (141), two mounting portions (142) and at least two executing portions (143); the two mounting portions (142) are symmetrically arranged at two ends of the base (141); at least two executing portions (143) are arranged on the circumferential side of the base (141) and are spaced apart along the circumference of the base (141); both sides of the executing portion (143) close to one end of the base (141) are provided with flipping grooves (144) for realizing flipping of the executing portion (143); and the flipping direction of the executing portion (143) corresponds to the axial direction of the mounting portion (142).

2. A diaphragm according to claim 1, characterized in that: The mounting portion (142) comprises a mounting column (142a) and a plurality of positioning columns (142b), wherein the plurality of positioning columns (142b) are evenly spaced along the circumference of the mounting column (142a).

3. A diaphragm according to claim 1 or 2, characterized in that: The number of the execution parts (143) is four, and the four execution parts (143) are evenly spaced along the circumference of the base (141).

4. A pump, characterized in that: Comprising the diaphragm (14) as described in any one of claims 1 to 3.

5. A pump according to claim 4, characterized in that: It comprises a pump head (1) and a pump body (2); The pump head (1) comprises a pump cover (11), a valve seat (12) and a one-way valve (13), wherein the number of the one-way valves (13) corresponds to the number of the actuators (143) of the diaphragm (14); the pump cover (11) is provided with a water inlet channel (111) and a water outlet channel (112), and the water inlet channel (111) is isolated from the water outlet channel (112); the valve seat (12) is arranged at one end of the pump cover (11), the valve seat (12) is provided with an input flow path (121) and an output flow path (122), the input flow path (121) is connected to the water inlet channel (111), and the one-way valve (13) is arranged on the valve seat (12) and enables the input flow path (121) to be selectively connected in one direction toward the output flow path (122); The diaphragm (14) is inserted into the valve seat (12) and enables the output flow path (122) to be selectively connected in one direction toward the water outlet channel (112); the pump body (2) drives the one-way valve (13) and the corresponding actuator (143) on the diaphragm (14) to work alternately.

6. A pump according to claim 5, characterized in that: The pump body (2) comprises a diaphragm seat (21), a base (22), a diaphragm (23), a transmission member (24) and a driving member (25); the base (22) is arranged on the driving member (25), the diaphragm seat (21) is arranged on the base (22) and is connected to the valve seat (12); the diaphragm (23) is arranged on the diaphragm seat (21), the diaphragm (23) is used for unidirectionally conveying fluid to the output flow path (122), the diaphragm (23) has a cup capsule (231), the number of the cup capsules (231) corresponds to the number of the actuator (143), and the driving member (25) is simultaneously connected to all the diaphragms (23) through the transmission member (24) to force each of the cup capsules (231) to deform in sequence.

7. A pump according to claim 6, characterized in that: The transmission member (24) comprises an eccentric wheel (241), a connecting shaft (242) and a crankshaft (243); The driving member (25) has a power output shaft, the power output shaft is connected to the eccentric wheel (241), the connecting shaft (242) is obliquely arranged on the eccentric wheel (241), and the curved rod (243) is arranged on the connecting shaft (242) and connected to each of the cup bags (231).

8. A pump according to claim 7, characterized in that: The pump body (2) further comprises at least two balls (26), wherein the at least two balls (26) are rollingly connected to the base (22) and abut against an end of the eccentric wheel (241) away from the curved rod (243).

9. A pump according to claim 5, characterized in that: The pump head (1) further comprises a check seat (15), a flow stop plate (16) and an elastic member (17); the check seat (15) is arranged between the pump cover (11) and the valve seat (12); the check seat (15) is provided with a communicating hole (124) and a communicating groove (152) which are connected; the communicating hole (124) is selectively connected to the output flow path (122); the communicating groove (152) is connected to the water outlet channel (112); the elastic member (17) is arranged between the flow stop plate (16) and the pump cover (11) to drive the flow stop plate (16) to block the communicating hole (124).

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