Diaphragm pump and flushing equipment

Abstract

The utility model discloses a diaphragm pump and flushing equipment, including power mechanism, transmission mechanism and diaphragm mechanism, the diaphragm mechanism is used for conveying medium, the transmission mechanism includes at most three connecting position, respectively, first connecting position, second connecting position and third connecting position, transmission mechanism includes eccentric shaft, drive disk and connecting rod, the eccentric shaft is connected with the driving disc, the driving disc is connected with the connecting rod through a ball socket, a second bearing is arranged at the top end of the eccentric shaft, the second bearing is used for fixing the eccentric shaft, the first connecting position is of a structure where the eccentric shaft is connected with the driving disc, the second connecting position is of a structure of the ball socket, and the third connecting position is of a structure of the second bearing. According to the diaphragm pump, no more than three connecting positions are arranged, so that the power output by the power mechanism can reach the diaphragm mechanism only through no more than three times of loss, the energy loss of the diaphragm pump is greatly reduced, and the output power of the diaphragm pump is effectively improved.

Description

Technical Field

[0001] This utility model relates to the technical field of pump equipment, and more particularly to a diaphragm pump and flushing equipment. Background Technology

[0002] Small household pumps are commonly used in the water supply and dispensing devices of small appliances such as electric irons, coffee makers, and cleaning machines. Existing diaphragm pumps achieve their dispensing effect through two one-way valves (inlet and outlet) and the cyclical movement of the diaphragm. Current known technologies employ various mechanical transmission structures to convert the rotation of the motor into the reciprocating motion of the diaphragm, ultimately realizing the pump's dispensing function. However, the existing technology still requires further structural improvement. Since small appliances often require specific battery power, the battery life issue remains a problem to be solved. Therefore, improving the energy conversion efficiency of diaphragm pumps requires further research and development in this field. Utility Model Content

[0003] One of the objectives of this invention is to provide a diaphragm pump to solve the technical problem of improving the energy conversion efficiency of diaphragm pumps.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a diaphragm pump is provided, comprising: a power mechanism, a transmission mechanism, and a diaphragm mechanism. The diaphragm mechanism is used to transport a medium. The transmission mechanism includes up to three connection positions, namely a first connection position, a second connection position, and a third connection position. The transmission mechanism includes an eccentric shaft, a drive disk, and a connecting rod. The eccentric shaft is connected to the drive disk, and the drive disk is connected to the connecting rod via a ball joint. A second bearing is provided at the top of the eccentric shaft for fixing the eccentric shaft. The first connection position is the structure for connecting the eccentric shaft to the drive disk, the second connection position is the structure of the ball joint, and the third connection position is the structure of the second bearing.

[0005] This invention relates to a diaphragm pump. By setting no more than three connection points, the power output from the power mechanism reaches the diaphragm mechanism after only three losses, significantly reducing energy loss and effectively increasing the pump's output power. Furthermore, the ball-and-socket structure ensures that the connecting rod always moves vertically when driving the diaphragm mechanism, which also improves the utilization rate of the internal compression space of the diaphragm mechanism, further increasing the pump's output power and reducing power loss.

[0006] Preferably, the transmission mechanism includes only two connection positions, namely a first connection position and a second connection position, with the top of the eccentric shaft suspended. This diaphragm pump structure, with only two connection positions, ensures that the power output from the power mechanism reaches the diaphragm mechanism after only two losses, further increasing the pump's output power and reducing power loss. Because the diaphragm reaction force is relatively low and the eccentric shaft rotates relatively slowly, the suspension of the eccentric shaft will not cause it to misalign or wobble, overcoming conventional design biases.

[0007] Preferably, the eccentric shaft is connected to the drive disk via a first bearing. This first bearing can greatly reduce the friction between the eccentric shaft and the drive disk, thus reducing power loss; at the same time, since the reaction force of the diaphragm is relatively small, there is basically no need to worry about the reduction in lifespan caused by the axial force of the first bearing.

[0008] More preferably, the friction coefficient of the first bearing is 0.001-0.0015. The lower the friction coefficient of the first bearing, the lower the power loss. By selecting a first bearing within this range and coordinating it with other structures, the power loss can be reduced to the range of 0.05-0.15.

[0009] Preferably, the eccentric shaft is slidably connected to the drive disc. This design further reduces the number of components, making installation easier and lowering costs, while also ensuring reasonable power loss to a certain extent.

[0010] Preferably, there are at least two connecting rods. These multiple connecting rods, in conjunction with the corresponding diaphragms, can ensure the continuity of the conveyed medium, and also, to a certain extent, ensure the dynamic balance of the drive disc.

[0011] Preferably, the connecting rod is bent away from the drive disc near the ball socket. Because the space inside the diaphragm pump is limited, this bending structure prevents interference or collision between the connecting rod and the drive disc when they rotate relative to each other through the ball socket, thus preventing power loss.

[0012] Preferably, the coefficient of friction of the aforementioned ball socket is 0.15-0.3. This coefficient of friction setting can minimize power loss at the ball socket and also improve its service life.

[0013] Preferably, the ball socket is made of polyhexamethylene adipamide. This material provides wear resistance and lubrication properties, ensuring low power loss at the ball socket and extending its service life.

[0014] Preferably, the surface roughness of the contact surface inside the ball socket is between 0.2 micrometers and 0.4 micrometers. The contact surface inside the ball socket is polished to ensure a low coefficient of friction, resulting in low power loss at the ball socket and extending its service life.

[0015] Preferably, the tilt angle of the drive disc is between 8 and 25 degrees. This tilt angle is the angle between the drive disc and the horizontal line perpendicular to the axis of the power mechanism. This angle setting ensures that the connecting rod has a suitable stroke, so as to facilitate smooth operation at the first connection position and prevent the first connection position from being subjected to too much axial force, which would make operation difficult.

[0016] Preferably, the friction coefficient of the second bearing is 0.05-0.15. This friction coefficient setting ensures that the power loss at the third connection point is not too large, thus reducing the power loss of the diaphragm pump.

[0017] Another objective of this invention is to provide a rinsing device to solve the technical problem of the rinsing device's battery life on a single charge.

[0018] To achieve the above objectives, the technical solution adopted by this utility model is to provide a rinsing device, including any of the diaphragm pumps mentioned above.

[0019] The rinsing device of this invention uses the aforementioned diaphragm pump, which reduces the energy loss of the diaphragm pump, thereby increasing the output power of the diaphragm pump and thus improving the single-charge endurance of the rinsing device. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] in:

[0022] Figure 1 This is a cross-sectional view of the diaphragm pump 1000 according to Embodiment 1;

[0023] Figure 2 This is a cross-sectional view of the diaphragm pump 2000 according to Example 2;

[0024] Figure 3 This is a cross-sectional view of the ear washer 300 according to Embodiment 3;

[0025] The labels for the attached figures are as follows:

[0026] 1000, 2000, 3000 — Diaphragm pumps;

[0027] 1100, 2100 — Power mechanism;

[0028] 1110, 2110 — Output shafts;

[0029] 1200, 2200 — Transmission mechanism;

[0030] 1210, 2210 — Eccentric shafts;

[0031] 1220, 2220 — drive disk;

[0032] 1230, 2230 — connecting rods;

[0033] 1231 — Curved;

[0034] 1240 – First bearing; 2240 – First connection point;

[0035] 1250, 2250 – ball socket;

[0036] 1260 – Second bearing;

[0037] 1300, 2300 — Diaphragm mechanism;

[0038] 1310, 2310 — diaphragm;

[0039] 1320 — Input port;

[0040] 1330, 3330 — Output ports;

[0041] 300 — Ear syringe;

[0042] 310—cochlea;

[0043] 311 — Nozzle;

[0044] 320 - Connecting handle. Detailed Implementation

[0045] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0046] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0047] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0049] Example 1:

[0050] like Figure 1 The diagram shown is a cross-sectional view of the diaphragm pump 1000 according to Embodiment 1 of this utility model.

[0051] This embodiment discloses a diaphragm pump 1000, including a power mechanism 1100, a transmission mechanism 1200, and a diaphragm mechanism 1300. The power mechanism 1100 provides power output, the transmission mechanism 1200 transmits the power output from the power mechanism 1100 to the diaphragm mechanism 1300, and the diaphragm mechanism 1300 transports a medium. The diaphragm pump 1000 of this embodiment can transport liquids, gases, or gas-liquid mixtures.

[0052] The power mechanism 1100 includes an output shaft 1110, through which power is output. The power mechanism 1100 includes a motor (not shown) and a gearbox (not shown).

[0053] The transmission mechanism 1200 includes an eccentric shaft 1210, a drive disk 1220, and a connecting rod 1230. The eccentric shaft 1210 is fixedly connected to the output shaft 1110. The transmission mechanism 1200 includes only three connection positions: a first connection position, a second connection position, and a third connection position. The eccentric shaft 1210 and the drive disk 1220 are connected via a first bearing 1240, serving as the first connection position. The drive disk 1220 and the connecting rod 1230 are connected via a ball joint 1250, serving as the second connection position. A second bearing 1260 is provided at the top of the output shaft 1110 to prevent the output shaft 1110 and the eccentric shaft 1210 from wobbling, serving as the third connection position.

[0054] In this embodiment, the tilt angle of the drive disk 1220 is 8 degrees, and the maximum longitudinal stroke of the connecting rod 1230 is 4 mm. There are four connecting rods 1230 in this embodiment, evenly distributed around the drive disk 1220, and four corresponding diaphragms 1310, each connected to one of the connecting rods 1230. The connecting rod 1230 bends 1231 from the position near the ball socket 1250 away from the drive disk 1220 to avoid interference and collision with the drive disk 1220 when it swings relative to it. In this embodiment, the friction coefficient of the first bearing 1240 is 0.0014; in other embodiments, the friction coefficient of the first bearing can be 0.001 or 0.0015. In this embodiment, the friction coefficient of the ball socket 1250 is 0.15. The ball socket 1250 is made of polyhexamethylene adipamide. The internal contact surface of the ball socket 1250 is surface polished, resulting in a surface roughness of 0.2 micrometers. In this embodiment, the friction coefficient of the second bearing 1260 is 0.05. In other embodiments, the friction coefficient of the second bearing may be 0.1 or 0.15.

[0055] The diaphragm mechanism 1300 includes a diaphragm 1310, an inlet 1320, and an outlet 1330. The diaphragm 1310 is fixedly connected to the connecting rod 1230. In this embodiment, the angle between the diaphragm 1310 and the connecting rod 1230 remains essentially constant to ensure that the force exerted by the connecting rod 1230 on the diaphragm 1310 is always perpendicular. The inlet 1320 is used to draw in the conveying medium, and the outlet 1330 is used to eject the conveying medium.

[0056] In this embodiment, the diaphragm pump 1000 is equipped with three connection points, so that the power output by the power mechanism 1100 can reach the diaphragm mechanism 1300 after only three losses, which greatly reduces the energy loss of the diaphragm pump 1000, and can basically reduce the energy loss to about 0.05.

[0057] Example 2:

[0058] like Figure 2The diagram shown is a cross-sectional view of the diaphragm pump 2000 according to Embodiment 2 of this utility model.

[0059] This embodiment discloses a diaphragm pump 2000, including a power mechanism 2100, a transmission mechanism 2200, and a diaphragm mechanism 2300. The power mechanism 2100 is used to provide power output, the transmission mechanism 2200 is used to transmit the power output by the power mechanism 2100 to the diaphragm mechanism 2300, and the diaphragm mechanism 2300 is used to transport the medium.

[0060] The power mechanism 2100 includes an output shaft 2110, through which power is output.

[0061] The transmission mechanism 2200 includes an eccentric shaft 2210, a drive disk 2220, and a connecting rod 2230. The eccentric shaft 2210 is fixedly connected to the output shaft 2110. The transmission mechanism 2200 includes only two connection positions: a first connection position 2240 and a second connection position. The eccentric shaft 2210 and the drive disk 2220 are slidably connected; this slidable connection is the first connection position 2240. The drive disk 2220 and the connecting rod 2230 are connected via a ball joint 2250, serving as the second connection position. The top end of the output shaft 2110 is suspended.

[0062] In this embodiment, the tilt angle of the drive disk 2220 is 10 degrees; in another embodiment, the tilt angle can be 25 degrees. The maximum longitudinal stroke of the connecting rod 2230 is 5.2 mm; in another embodiment, the maximum longitudinal stroke of the connecting rod can be 3 mm or 8 mm. In this embodiment, there are two connecting rods 2230, symmetrically distributed around the drive disk 1220, and correspondingly, there are also two diaphragms 2310, each connected to one of the connecting rods 2230. In this embodiment, the coefficient of friction of the ball socket 2250 is 0.2; in other embodiments, the coefficient of friction of the ball socket can be 0.3. The internal contact surface of the ball socket 2250 is polished to a roughness of 0.3 micrometers; in other embodiments, the roughness of the internal contact surface of the ball socket can be 0.4 micrometers.

[0063] The diaphragm mechanism 2300 includes a diaphragm 2310. The diaphragm 2310 is fixedly connected to the connecting rod 2230.

[0064] The diaphragm pump 2000 of this embodiment has basically the same effect as the diaphragm pump 1000 of the first embodiment of this utility model. Moreover, since there are only two connection points, there are fewer points of power loss, which improves the power transmission efficiency to a certain extent.

[0065] Example 3:

[0066] like Figure 3 The diagram shown is a cross-sectional view of the ear washer 300 according to Embodiment 3 of this utility model.

[0067] This embodiment discloses an ear washer 300, which includes two cochleas 310 and a connecting handle 320 connecting the two cochleas 310.

[0068] One of the cochleas 310 is equipped with a diaphragm pump 3000. The diaphragm pump 3000 in this embodiment is basically the same in structure as the diaphragm pump 1000 in Embodiment 1 of this utility model. A nozzle 311 is provided on the inner side of the cochlea 310. The nozzle 311 is connected to the output port 3330 of the diaphragm pump 3000 in the cochlea 310 through components such as a control valve (not shown).

[0069] The ear syringe 300 in this embodiment uses a diaphragm pump 3000, which has high output power, long battery life, and can rinse the ear canal over a long distance with gentle and appropriate force.

[0070] In this embodiment, the rinsing device is an ear washer 300. In other embodiments, the rinsing device can be a dental flosser or other devices.

[0071] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A diaphragm pump, comprising: The system comprises a power mechanism, a transmission mechanism, and a diaphragm mechanism. The power mechanism provides power, the transmission mechanism connects the power mechanism and the diaphragm mechanism, and the diaphragm mechanism is used to transport a medium. The transmission mechanism includes a maximum of three connection positions: a first connection position, a second connection position, and a third connection position. The transmission mechanism includes an eccentric shaft, a drive disk, and a connecting rod. The eccentric shaft is connected to the drive disk, and the drive disk is connected to the connecting rod via a ball joint. A second bearing is provided at the top of the eccentric shaft to fix it. The first connection position is the structure connecting the eccentric shaft and the drive disk; the second connection position is the structure of the ball joint; and the third connection position is the structure of the second bearing.

2. The diaphragm pump according to claim 1, characterized in that, The transmission mechanism includes only two connection positions, namely the first connection position and the second connection position, and the top of the eccentric shaft is suspended.

3. The diaphragm pump according to claim 1, characterized in that, The eccentric shaft is connected to the drive disk via a first bearing.

4. The diaphragm pump according to claim 3, characterized in that, The friction coefficient of the first bearing is 0.001-0.0015.

5. The diaphragm pump according to claim 1, characterized in that, The eccentric shaft is slidably connected to the drive disk.

6. The diaphragm pump according to claim 1, characterized in that, There are at least two connecting rods.

7. The diaphragm pump according to claim 1, characterized in that, The connecting rod bends away from the drive disc from the position near the ball socket.

8. The diaphragm pump according to claim 1, characterized in that, The coefficient of friction of the ball socket is 0.15-0.

3.

9. The diaphragm pump according to claim 1, characterized in that, The ball socket is made of polyhexamethylene adipamide.

10. The diaphragm pump according to claim 1, characterized in that, The surface roughness of the contact surface inside the ball socket is 0.2 micrometers to 0.4 micrometers.

11. The diaphragm pump according to claim 1, characterized in that, The drive disc tilt angle is 8 to 25 degrees.

12. The diaphragm pump according to claim 1, characterized in that, The maximum longitudinal stroke of the connecting rod ranges from 3mm to 8mm.

13. The diaphragm pump according to claim 1, characterized in that, The friction coefficient of the second bearing is 0.05-0.

15.

14. A rinsing device, characterized in that, Including the diaphragm pump as described in any one of claims 1-13.

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