WO2021082908A1 - 隔膜泵及高压清洗机 - Google Patents

隔膜泵及高压清洗机 Download PDF

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Publication number
WO2021082908A1
WO2021082908A1 PCT/CN2020/120628 CN2020120628W WO2021082908A1 WO 2021082908 A1 WO2021082908 A1 WO 2021082908A1 CN 2020120628 W CN2020120628 W CN 2020120628W WO 2021082908 A1 WO2021082908 A1 WO 2021082908A1
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WIPO (PCT)
Prior art keywords
diaphragm
pressure
head mechanism
contact surface
pump
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PCT/CN2020/120628
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English (en)
French (fr)
Inventor
焦石平
查霞红
赵凤丽
李中仲
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苏州宝时得电动工具有限公司
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Priority claimed from CN201911052818.7A external-priority patent/CN112746944A/zh
Priority claimed from CN201921857387.7U external-priority patent/CN211258952U/zh
Application filed by 苏州宝时得电动工具有限公司 filed Critical 苏州宝时得电动工具有限公司
Publication of WO2021082908A1 publication Critical patent/WO2021082908A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/04—Pumps having electric drive

Definitions

  • the invention relates to a diaphragm pump and a high-pressure cleaner, belonging to the technical field of diaphragm pumps.
  • Diaphragm pumps are also called control pumps, which use the elasticity of the diaphragm in the diaphragm pump and the reciprocating deformation of the diaphragm to change the volume of the pressure chamber formed by the diaphragm and the cover so as to press in and suck out the liquid.
  • the support plane of the device that is used to contact the diaphragm and deform the diaphragm is generally too small, so that the deformation of the diaphragm is small, and the volume change of the pressure chamber is also small, which eventually causes the diaphragm pump to discharge water.
  • the problem of low pressure and difficulty in pressure rise; at the same time, the small supporting area of the diaphragm can easily cause pressure relief and cannot withstand the pressure.
  • the object of the present invention is to provide a diaphragm pump and a high-pressure cleaner that can assist the diaphragm to resist the pressure in the pressure chamber to avoid pressure relief, thereby increasing the water pressure.
  • a diaphragm pump comprising a pump body, a diaphragm provided on the side of the pump body, a cover provided on the diaphragm and forming a pressure chamber with the diaphragm
  • a drive mechanism arranged in the pump body, the diaphragm has a dynamic area that deforms to change the volume of the pressure chamber, the diaphragm pump further includes a head mechanism driven by the drive mechanism, the head mechanism having A contact surface that is in contact with the dynamic area to deform it, and the projection of the contact surface on the diaphragm along the movement direction of the head mechanism always covers the dynamic area.
  • the contact surface and/or the side of the diaphragm facing the head mechanism is a smooth surface or an uneven surface.
  • the contact surface and/or the side of the diaphragm facing the head mechanism is provided with regularly arranged or scattered grooves or protrusions; or, the contact surface and/or the diaphragm facing One side of the head mechanism is a wavy plane.
  • the contact surface is an arc-shaped surface convex toward the direction of the dynamic area.
  • the diaphragm pump further includes a protruding block located on the contact surface protruding outward, the diaphragm is provided with a recessed groove that cooperates with the protruding block, and the protruding block is matched with the recessed groove to It is realized that the head mechanism drives the dynamic area of the diaphragm to move toward the side away from the pressure chamber.
  • the driving mechanism is made of a first material
  • the head mechanism is made of a second material
  • the hardness of the second material is greater than that of the first material
  • the driving mechanism includes a reciprocating coupling, and the head mechanism is connected with one end of the coupling close to the pressure chamber and is driven by the coupling to move.
  • the plug mechanism is integrally formed or the coupling and the plug mechanism are provided separately.
  • the diaphragm further includes a static area located at one side of the dynamic area, a surrounding portion surrounding the dynamic area and the static area, and the surrounding portion is fixed between the pump body and the cover body .
  • the present invention also provides a high-pressure washer, which includes a body, a fluid input end arranged on the body, and a fluid output end for ejecting fluid outward.
  • the high-pressure washer also includes The above-mentioned diaphragm pump for connecting with the fluid input end and the fluid output end.
  • outlet pressure of the high-pressure cleaner is 0.2-1.5 MPa, and the flow rate is 1.3-4.2L.
  • the high-pressure cleaning machine is configured to have selectable: pressure cleaning mode and flow cleaning mode; the pressure of the pressure cleaning mode is greater than the flow cleaning mode, and the flow of the pressure cleaning mode is less than the flow cleaning mode.
  • the beneficial effect of the present invention is that by providing a plug mechanism and the plug mechanism has a contact surface in contact with the dynamic area, the projection of the contact surface on the diaphragm along the movement direction of the plug mechanism always covers the dynamic area, so that the plug mechanism is always comprehensive Auxiliary to withstand the pressure of the dynamic area, indirectly increase the hardness of the diaphragm to increase the volumetric efficiency of the pressure chamber, thereby increasing the water pressure and avoiding the problem of pressure relief;
  • the invention has simple structure and convenient operation.
  • Figure 1 is a schematic diagram of the structure of the high-pressure cleaner of the present invention.
  • Figure 2 is a schematic diagram of the explosive structure of the diaphragm pump of the present invention.
  • Figure 3 is a top view of the diaphragm pump of the present invention.
  • Figure 4 is a cross-sectional view of the diaphragm pump of the present invention.
  • Fig. 5 is a schematic diagram of the structure of the diaphragm and the head mechanism of the present invention.
  • the axis direction is consistent with the height direction.
  • a high-pressure washer 100 in a preferred embodiment of the present invention includes a main body 1, a fluid input end 2 provided on the main body 1, and a fluid output end 3 for ejecting fluid outward.
  • the high-pressure washer also It includes a diaphragm pump 5 arranged in the body 1 and used for connecting with the fluid input end 2 and the fluid output end 3.
  • the body 1 includes a gun body 11 and a functional component 12 connected to the gun body 11.
  • the gun body 11 includes a housing 111 and a barrel 112 arranged on the housing 111. More specifically, the housing 111 includes a main body 1111 and A holding portion 1112 connected to the main body portion 1111.
  • the functional component 12 is a start switch, the holding portion 1112 is provided with a hollow part, the hollow part has a ring structure, and the start switch 12 is arranged in the ring-shaped hollow part. Under the control of the external force, the start switch 12 is in contact with or separated from the holding portion 1112 so that the high-pressure cleaner 100 enters or sprays water.
  • the user holds the grip 1112 on one side close to the start switch 12 and controls the start switch 12, and the other hand holds the other side of the grip 1112 to separate the hand-held washer. Pressure on users.
  • An oval ring is also provided at one end of the holding portion 1112. When the high pressure washer 100 is not in use, holding the oval ring with one hand is a more energy-saving way.
  • the fluid input end 2 is connected to the main body portion 1111, the fluid output end 3 is arranged on one side of the gun shaft 112, and the diaphragm pump 5 is arranged in the main body portion 1111, between the gun shaft 112 and the grip portion 1112, on the fluid input end 2. side.
  • the fluid input end 2 is a water intake mechanism 2 connected with the diaphragm pump 5, and the fluid output end 3 is a nozzle 3 connected with the diaphragm pump 5.
  • the water inlet mechanism 2 includes a water inlet pipe 21 for connecting the diaphragm pump 5 and an external water source, and a transmission pipe 31 for transmitting fluid is also provided between the nozzle 3 and the diaphragm pump 5.
  • the diaphragm pump 5 runs under the control of the electric system and controls the water inlet pipe 21 to transport the external water flow through the water inlet pipe 21 to the water storage in the high-pressure washer 100 Container (not shown); the diaphragm pump 5 runs under the control of the power system and controls the fluid to be transmitted to the nozzle 3 through the transmission pipe 31 and sprayed to the cleaning target.
  • the gun barrel 112 includes a gun head and a gun tail 1122.
  • the water inlet mechanism 2 is arranged under the gun head 1121 and arranged on one side of the grip 1112. It is true that in other embodiments, the water inlet mechanism 2 can also be arranged at other positions on the gun body 11, which is not specifically limited here, and depends on the actual situation.
  • the high-pressure washer 100 also includes a power mechanism 4 arranged at the gun head 1121 and used to provide power for the whole machine.
  • the power mechanism 4 is a battery pack.
  • the power mechanism 4 It can also be a power cord and plug that are connected to an external power system to provide power, which is not specifically limited here, and it depends on the actual situation.
  • the pressure washer 100 of the high-pressure cleaner 100 using the diaphragm pump 5 has a water outlet pressure range of 0.2-1.5 MPa and a flow rate range of 1.3-4.2L. More specifically, when the pressure washer 100 has a water outlet pressure of 1.36 MPa and a flow rate of 1.4L, The cleaning effect of the high-pressure cleaner 100 is the best, and it has a strong impact force to wash away stains. For the high-pressure cleaner 100, a better cleaning effect can be achieved as follows: the pressure is high and the pressure is the cleaning effect; or the flow is large, and the flow is the cleaning effect.
  • the high-pressure cleaner 100 using the diaphragm pump 5 can take both pressure and flow into consideration, and is configured to have selectable pressure cleaning modes and flow cleaning modes.
  • the outlet pressure is 0.2-1.5 MPa, and the pressure is mainly used to achieve the cleaning effect; in the flow cleaning mode, the flow is 1.3-4.2L, mainly through the flow to achieve the cleaning effect, and the pressure in the pressure cleaning mode Greater than the flow cleaning mode, the flow of the pressure cleaning mode is less than the flow cleaning mode.
  • Users can switch to different cleaning modes according to their needs. For example, when connecting to a small water container through a water pipe, you can switch to the pressure cleaning mode, that is, make full use of the water when the amount of water is small; when connecting to a lake, swimming pool, etc. through a water pipe, you can switch to flow cleaning Mode, make full use of the characteristics of the large amount of water in lakes and swimming pools.
  • the outlet pressure of the high-pressure cleaner is 0.5-1.5Mpa; in the flow cleaning mode, the outlet water flow is 2-3.5L, thereby having a better cleaning effect.
  • the diaphragm pump 5 also has the advantages of small size, good sealing performance, low energy consumption, etc., and is convenient to be held.
  • the handheld high-pressure cleaner 100 using the diaphragm pump 5 can achieve the cleaning function while achieving the purpose of saving and efficient cleaning.
  • the hand-held high-pressure washer 100 adopts a plunger pump
  • the high-pressure washer 100 achieves the cleaning effect through strong water pressure and a certain flow rate.
  • the pressure chamber of the plunger pump is small and is arranged around the plunger. To increase the flow rate of the pressure chamber, it is necessary to increase the diameter of the plunger or the stroke range of the plunger. However, once the diameter of the plunger is increased, the volume of the entire plunger pump will become larger, which is not suitable for the handheld high pressure washer 100 in this embodiment.
  • the diaphragm pump 5 includes a pump body 51, a diaphragm 52 arranged on both sides of the pump body 51, a cover 53 that is arranged on the diaphragm 52 and forms a pressure chamber 56 with the diaphragm 52, and is arranged on the pump body.
  • the driving mechanism 54 in the body 51 drives the diaphragm 52 to deform to change the volume of the pressure chamber 56.
  • diaphragms 52 are provided on both sides of the pump body 51.
  • covers 53 are provided on both sides of the pump body 51 and form a first pressure chamber and a second pressure chamber with the diaphragm 52, respectively.
  • the first pressure chamber and the second pressure chamber are symmetrically arranged and have the same structure.
  • the material of the diaphragm 52 is any of chloroprene rubber, fluororubber, nitrile rubber or other materials. Other materials may include flexible metals. In this embodiment, the material of the diaphragm 52 is not specifically limited, as long as It is sufficient that the diaphragm 52 can produce good deformation and adapt to the upper limit of the normal pressure.
  • the diaphragm pump 5 also includes a chamber water inlet 511 provided on the pump body 51 and a chamber water outlet 512 communicating with the chamber water inlet 511.
  • the chamber water inlet 511 and the chamber water outlet 512 are arranged side by side and arranged on the coupling shaft. 542 side.
  • the diaphragm 52 is provided with a first opening 5221 and a second opening 5222 at positions corresponding to the chamber water inlet 511 and the chamber water outlet 512, respectively, so that the chamber water inlet 511 and the chamber water outlet 512 and the pressure chamber 56 Connectivity settings. It is true that in other embodiments, the chamber water inlet 511 and the chamber water outlet 512 can also be respectively arranged on both sides of the coupling 542 or other positions, which are not specifically limited here, and depend on actual conditions.
  • the diaphragm pump 5 also includes a water inlet check valve communicating with the chamber water inlet 511 to control the liquid entering the diaphragm pump 5 and a water outlet check valve communicating with the chamber water outlet 512 to control the liquid flowing out of the diaphragm pump 5.
  • the diaphragm pump 5 also has a pump body water inlet 513 communicating with the water inlet pipe 21 and a pump body water outlet 514 communicating with the transmission pipe 31.
  • the pump body water inlet 513 and the pump body water outlet 514 are respectively It is arranged on both sides of the pump body 51 and communicated with the water inlet check valve and the water outlet check valve respectively.
  • the pump body water inlet 513 and the pump body water outlet 514 can also be arranged on a certain side or other positions of the pump body 51 at the same time, which is not specifically limited here, and depends on the actual situation.
  • the water inlet check valve arranged on the side of the chamber water inlet 511 only allows water flow from the chamber water inlet 511 into the pressure chamber 56 and does not allow the water flow in the pressure chamber 56 to flow out from the chamber water inlet 511 .
  • the one-way valve provided on the side of the water outlet 512 of the chamber only allows the water flow in the pressure chamber 56 to flow out from the water outlet 512 of the chamber, and does not allow the water flow outside the pressure chamber 56 to flow from the water outlet 512 of the chamber. Flow into the pressure chamber 56.
  • the diaphragm pump 5 also includes a head mechanism 55 that is driven by the drive mechanism 54 and pushes up the diaphragm 52 to deform the diaphragm 52 to change the volume of the pressure chamber 56.
  • the head mechanism 55 has contact with the diaphragm 52 to push up the diaphragm 52.
  • the contact surface 551 of the diaphragm 52 has a dynamic area 521 that deforms in contact with the contact surface 551 to change the volume of the pressure chamber 56.
  • the projection of the contact surface 551 on the diaphragm 52 along the movement direction of the head mechanism 55 always covers the dynamic area 521 .
  • the "variable volume” and flow rate of the pump determine the upper pressure limit of the pump, and the “volume efficiency” determines that the pump can normally adapt to the upper pressure limit.
  • the "volume efficiency" of the diaphragm pump is determined by multiple parameters, such as the torque of the motor, the hardness of the diaphragm 52, and so on. In the present application, the pressure chamber 56 becomes smaller due to the deformation of the diaphragm 52.
  • the contact surface 551 assists in support to avoid pressure relief, that is, the head mechanism 55 can drive the dynamic area 521 to undergo the greatest deformation to assist with the pressure of the pressure chamber 56, and indirectly increase the hardness of the diaphragm 52 to the greatest extent to improve the volumetric efficiency. .
  • the head mechanism 55 may be a semicircular body, and the contact surface 551 is an arc-shaped surface convex toward the dynamic area 521 to fully contact the diaphragm 52.
  • the contact surface 551 is an arc-shaped surface convex toward the dynamic area 521 to fully contact the diaphragm 52.
  • the deformed part of the diaphragm 52 tends to be arc-shaped, and setting the contact surface 551 to be arc-shaped can better fit the deformed part of the diaphragm 52 to prevent pressure relief.
  • the shape of the contact surface 551 may also be other shapes, such as a plane, etc., which is not specifically limited here, and depends on the actual situation.
  • the contact surface 551 and/or the side of the diaphragm 52 facing the head mechanism 55 is a smooth surface or an uneven surface. If the contact surface 551 is an uneven surface, specifically, the contact surface 551 is provided with regular or scattered grooves, and the side of the diaphragm 52 facing the head mechanism 55 is provided with corresponding protrusions; or, the contact surface 551 is provided with regular rows. The protrusions are scattered or scattered, and the side of the diaphragm 52 facing the head mechanism 55 is provided with corresponding grooves.
  • the arc-shaped surface 551 is an arc-shaped surface 551 provided with protrusions, which increases the frictional force with the diaphragm 52 to better push up the diaphragm 52 and deform it.
  • the uneven surface may also be a waved surface or other shapes
  • the arc-shaped surface may also be a smooth surface
  • the surface of the diaphragm 52 facing the arc-shaped surface 551 is provided with convex points or grooves or other shapes.
  • the structure of the shape achieves the result of increasing the frictional force, thereby increasing the area of deformation and increasing the volumetric efficiency of the pressure chamber 56, which is not specifically limited here, and depends on the actual situation.
  • the diaphragm pump 5 may further include a protruding block (not shown) protruding outward on the contact surface 551, and a recessed groove (not shown) that cooperates with the protruding block is provided on the diaphragm 52, and the protruding block passes through the recessed groove It cooperates to realize that the head mechanism 55 drives the dynamic area 521 of the diaphragm 52 to move toward the side away from the pressure chamber 56.
  • the shape of the protruding block is not limited, as long as it cooperates with the recessed groove to achieve the effect that the head mechanism 55 drives the dynamic area 521 of the diaphragm 52 to move toward the side away from the pressure chamber 56, which is not specifically limited here. It depends on the actual situation.
  • the driving mechanism 54 includes a motor and an eccentric wheel 541 connected to the motor.
  • the diaphragm pump also includes a coupling 542 connected to the eccentric wheel 541 and reciprocating.
  • the coupling 542 drives the head mechanism 55 to move under the drive of the driving mechanism 54
  • the contact surface 551 pushes the dynamic area 521 to deform.
  • the head mechanism 55 is connected to an end of the coupling 542 close to the pressure chamber 56 and is driven by the coupling 542 to move.
  • the coupling 542 and the head mechanism 55 are integrally formed or the coupling 542 and the head mechanism 55 are provided separately.
  • the plug mechanism 55 is connected to the coupling 542, and the plug mechanism 55 is fixed on the coupling 542.
  • the fixing method can be laser welding or cavity glue bonding.
  • the head mechanism 55 and the coupling 542 are integrally provided.
  • the head mechanism 55 and the coupling 542 are integrally arranged, which simplifies the production steps and assembly steps, saves manpower, is fast and convenient.
  • the plug mechanism 55 can also be separately arranged on the side of the coupling 542, and the coupling 542 is driven by the motor and the eccentric wheel 541 to move to drive the plug mechanism 55 to move.
  • the plug mechanism 55 and the coupling The shaft 542 can be made of materials with different hardness. The hardness of the head mechanism 55 is stronger than that of the coupling 542, which takes into account the weight of the washing machine and the pressure of the diaphragm pump.
  • the contact surface 551 is provided by a single component.
  • the coupling 542 and the head mechanism 55 are provided separately, and the coupling 542 also provides the contact surface 551 on the side facing the diaphragm 52.
  • the side of the coupling 542 close to the diaphragm 52 is actually the head mechanism 55, and the contact surface 551 is provided by multiple components. It can be understood that the parts used to provide the contact surface 551 are all within the scope of the head mechanism 55 of the present application.
  • the diaphragm 52 also includes a static area 522 connected to the dynamic area 521, and a surrounding portion 523 disposed on the periphery of the dynamic area 521 and the static area 522.
  • the surrounding portion 523 is fixedly disposed between the pump body 51 and the cover 53 through which the cover 53 passes It is fixedly connected with the surrounding portion 523 to achieve the purpose of covering the diaphragm 52.
  • a connecting edge 524 is formed between the surrounding portion 523, the static area 522, and the dynamic area 521.
  • the outer edge of the contact surface 551 is arranged close to the connecting edge 524 or overlapping with the connecting edge 524
  • the outer side of the contact surface 551 overlaps with the connecting side 524.
  • the head mechanism 55 assists in withstanding the pressure of the dynamic area 521, which indirectly increases the hardness of the diaphragm 52.
  • the volumetric efficiency of the pressure chamber 56 is improved, thereby increasing the outlet water pressure, and avoiding the problem of pressure relief.
  • the periphery of the cover 53 is connected with the surrounding portion 523 to seal the diaphragm 52 on the pump body 51.
  • the first opening 5221 and the second opening 5222 are arranged on the static area 522 and communicate with the cavity water inlet and the cavity water outlet.
  • the static area 522 is arranged on one side of the dynamic area 521.
  • the static area 522 may also be arranged outside the dynamic area 521 and surround the dynamic area 521, and the surrounding portion 523 is arranged on the static area 521.
  • the area 522 is the outermost area and surrounds the static area 522, which is not specifically limited here, and it depends on the actual situation.
  • the head mechanism 55 and the head mechanism 55 has a contact surface 551 in contact with the dynamic area 521, the projection of the contact surface 551 on the diaphragm 52 along the moving direction of the head mechanism 55 always covers the dynamic area 521, so that the head
  • the mechanism 55 always assists to bear the pressure of the dynamic area 521 in an all-round way, and indirectly increases the hardness of the diaphragm 52 to increase the volumetric efficiency of the pressure chamber 56, thereby increasing the water outlet pressure and avoiding the problem of pressure relief;
  • the invention has simple structure and convenient operation.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Abstract

一种隔膜泵(5)及高压清洗机(100)，包括泵体(51)、设置在泵体(51)两侧的隔膜(52)、盖设在隔膜(52)上并与隔膜(52)形成压力腔室(56)的盖体(53)及设置在泵体(51)内的驱动机构(54)。隔膜(52)具有发生形变以改变压力腔室(56)的容积大小的动态区域(521)，隔膜泵(52)还包括由驱动机构(54)驱动的顶头机构(55)，顶头机构(55)具有与动态区域(521)接触以使其发生形变的接触面(551)，接触面(551)沿顶头机构(55)的运动方向在隔膜(52)上的投影始终覆盖动态区域(521)。通过将顶头机构(55)的接触面(551)沿顶头机构(55)的轴线的投影面积大于或等于动态区域(521)沿顶头机构(55)轴线方向的投影面积，以使得顶头机构(55)始终全面的辅助承受动态区域(521)的压力，间接提升了隔膜(52)的硬度以提高压力腔室(56)的容积效率，避免泄压的问题发生。

Description

隔膜泵及高压清洗机
本申请要求了申请日为2019年10月31日，申请号为201911052818.7和201921857387.7的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及一种隔膜泵及高压清洗机，属于隔膜泵技术领域。
背景技术
隔膜泵又称控制泵，利用隔膜泵中隔膜的弹性且通过隔膜的往复变形以使得隔膜与盖体形成的压力腔室发生容积变化从而将液体压入及吸出。现有的隔膜泵中，用以与隔膜接触并使得隔膜发生形变的装置的支撑平面一般面积太小，使得隔膜发生的形变较小进而压力腔室的容积变化也较小，最终导致隔膜泵出水压力小、压力提升困难的问题；同时隔膜支撑面积小也容易造成泄压、不能承受打压力的问题。
发明内容
本发明的目的在于提供一种能够辅助隔膜对抗压力腔室中的压力以避免泄压、从而提高水压的隔膜泵及高压清洗机。
为达到上述目的，本发明提供如下技术方案：一种隔膜泵，包括泵体、设置在所述泵体侧的隔膜、盖设在所述隔膜上并与所述隔膜形成压力腔室的盖体及设置在所述泵体内的驱动机构，所述隔膜具有发生形变以改变压力腔室的容积大小的动态区域，所述隔膜泵还包括由所述驱动机构驱动的顶头机构，所述顶头机构具有与所述动态区域接触以使其发生形变的接触面，所述接触面沿所述顶头机构的运动方向在隔膜上的投影始终覆盖所述动态区域。
进一步地，所述接触面和/或所述隔膜朝向所述顶头机构的一面为光滑面或不平整面。
进一步地，所述接触面和/或所述隔膜朝向所述顶头机构的一面，设置有规则排布或零散排布的凹槽或凸起；或者，所述接触面和/或所述隔膜朝向所述顶 头机构的一面为波浪形平面。
进一步地，所述接触面为朝向所述动态区域方向外凸的弧形面。
进一步地，所述隔膜泵还包括位于所述接触面向外突伸的突伸块，所述隔膜上设有与所述突伸块配合的凹陷槽，所述突伸块通过与凹陷槽配合以实现顶头机构带动隔膜的动态区域朝向背离压力腔室的一侧运动。
进一步地，所述驱动机构由第一材料制成，所述顶头机构由第二材料制成，所述第二材料的硬度大于所述第一材料的硬度。
进一步地，所述驱动机构包括做往复运动的联轴器，所述顶头机构与所述联轴器靠近压力腔室的一端相连且由所述联轴器带动运动，所述联轴器与所述顶头机构一体成型或者所述联轴器与所述顶头机构分体设置。
进一步地，所述隔膜还包括位于所述动态区域一侧静止设置的静态区域、环绕所述动态区域及静态区域的环绕部，所述环绕部固定在所述泵体和所述盖体之间。
本发明还提供了一种高压清洗机，包括本体、设置在所述本体上的流体输入端及用于向外喷射流体的流体输出端，所述高压清洗机还包括设置在所述本体内且用以与所述流体输入端及流体输出端连接的如上所述的隔膜泵。
进一步地，所述高压清洗机的出水压力范围为0.2-1.5MPa，流量范围为1.3-4.2L。
进一步地，所述高压清洗机被配置为具有可选择的：压力清洗模式、流量清洗模式；压力清洗模式的压力大于流量清洗模式，压力清洗模式的流量小于流量清洗模式。
进一步地，所述高压清洗机处于压力清洗模式时，其出水压力为0.2-1.5MPa；所述高压清洗机处于流量清洗模式时，其出水流量为1.3-4.2L。
本发明的有益效果在于：通过设置有顶头机构且顶头机构具有与动态区域接触的接触面，该接触面沿顶头机构的运动方向在隔膜上的投影始终覆盖动态区域，以使得顶头机构始终全面的辅助承受动态区域的压力，间接提升了隔膜的硬度以提高压力腔室的容积效率，进而提升出水压力，避免泄压的问题发生；
本发明结构简单，操作方便。
上述说明仅是本发明技术方案的概述，为了能够更清楚了解本发明的技术手段，并可依照说明书的内容予以实施，以下以本发明的较佳实施例并配合附图详细说明如后。
附图说明
图1为本发明的高压清洗机的结构示意图。
图2为本发明的隔膜泵的爆炸结构示意图。
图3为本发明的隔膜泵的俯视图。
图4为本发明的隔膜泵的剖面图。
图5为本发明的隔膜与顶头机构的结构示意图。
具体实施方式
下面将结合附图对本发明的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
在本发明的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
此外，下面所描述的本发明不同实施方式中所涉及的技术特征只要彼此之间未 构成冲突就可以相互结合。在本发明描述中，轴线方向与高度方向一致。
请参见图1，本发明的一较佳实施例中的高压清洗机100包括本体1、设置在本体1上的流体输入端2及用于向外喷射流体的流体输出端3，高压清洗机还包括设置在本体1内且用以与流体输入端2及流体输出端3连接的隔膜泵5。本体1包括枪体11及与枪体11连接的功能性部件12，该枪体11包括壳体111及设置在壳体111上的枪杆112，更为具体的，壳体111包括主体部1111及与主体部1111连接的握持部1112。该功能性部件12为启动开关，握持部1112设置有中空部，该中空部为环形结构，启动开关12设置在环形状的中空部内。在外力的控制下，启动开关12与握持部1112接触或者分离以使得高压清洗机100进水或喷水。在使用高压清洗机100的时候，使用者一只手握住握持部1112靠近启动开关12的一边并控制启动开关12，另一只手握住握持部1112另一边以分离手持清洗机施加给使用者的压力。在握持部1112的一端还设置有椭圆形环，在高压清洗机100未使用的情况下，单手握住该椭圆形环为较为节省体力的方式。
流体输入端2与主体部1111连接，流体输出端3设置在枪杆112的一侧，隔膜泵5设置在主体部1111内，在枪杆112及握持部1112之间，位于流体输入端2的上侧。在本实施例中，流体输入端2为与隔膜泵5连通的进水机构2，流体输出端3为与隔膜泵5连通的喷嘴3。进水机构2包括用以连接隔膜泵5及外界水源的进水管道21，喷嘴3与隔膜泵5之间还设置有用以传输流体的传输管道31。按下启动开关12使得启动开关12与握持部1112接触，隔膜泵5在电力系统的控制下运行并控制进水管道21将外界水流通过进水管道21运输至高压清洗机100内的储水容器(未图示)；隔膜泵5在电力系统的控制下运行并控制流体通过传输管道31传输至喷嘴3并喷洒向清洗目标。枪杆112包括枪头及枪尾1122。在本实施例中，为了使得高压清洗机100的水路安排合理及外观小巧轻便，进水机构2设置在枪头1121的下方且设置在握持部1112的一侧。诚然，在其他实施例中，进水机构2也可设置在枪体11上的其他位置，在此不做具体限定，根据实际情况而定。
该高压清洗机100还包括设置在枪头1121且用以为整机提供电力的电力机构4，在本实施例中，该电力机构4为电池包，诚然，在其他实施例中，该电力机构4也可为与外部电力系统连接以提供电力的电源线及插头，在此不做具体限定，根据实际情况而定。
应用隔膜泵5的高压清洗机100的出水压力范围为0.2-1.5MPa，流量范围为1.3-4.2L，更为具体的，当高压清洗机100的出水压力为1.36MPa、流量为1.4L时，高压清洗机100的清洗效果达到最好，其具有较强的冲击力以冲刷污渍。于高压清洗机100来说，实现较好的清洗效果为：压力高，压力实现清洗效果；或流量大，流量实现清洗效果。应用隔膜泵5的高压清洗机100可以兼顾压力和流量，被配置为具有可选择的压力清洗模式、流量清洗模式。即在压力清洗模式下，出水压力为0.2-1.5MPa，主要通过压力，实现清洗效果；在流量清洗模式时，流量为1.3-4.2L，主要通过流量，实现清洗效果，另外压力清洗模式的压力大于流量清洗模式，压力清洗模式的流量小于流量清洗模式。用户可以根据需求切换至不同的清洗模式下。例如，当通过水管外接至较小的盛水容器时，可以切换使用压力清洗模式，即在水量较少的情况下，充分利用；当通过水管外接至湖泊、泳池等时，可以切换至流量清洗模式，充分利用湖泊、泳池的水量多的特点。优选的，该高压清洗机在压力清洗模式下，出水压力为0.5-1.5Mpa；在流量清洗模式下，该出水流量为2-3.5L，从而具有更好的清洗效果。
隔膜泵5同时还拥有体积小巧、密封性好、能耗低等优点，便于手持，应用隔膜泵5的手持高压清洗机100在实现清洗功能的同时，还能达到节约、高效清洗的目的。当手持式的高压清洗机100采用柱塞泵时，高压清洗机100通过较强的水压配合一定的流量实现清洗效果，柱塞泵的压力腔室较小且设置在柱塞的周围，若需要增大压力腔室的流量则需要增加柱塞的直径或者柱塞的行程范围。而一旦增加柱塞的直径，则整个柱塞泵的体积会变大，不适用于本实施例中的手持式高压清洗机100。
请参见图2至图5，隔膜泵5包括泵体51、设置在泵体51两侧的隔膜52、盖设在隔膜52上并与隔膜52形成压力腔室56的盖体53及设置在泵体51内的 驱动机构54，驱动机构54带动隔膜52发生形变以改变压力腔室56容积大小。在本实施例中，泵体51的两侧皆设置有隔膜52，相应的，泵体51两侧皆设置有盖体53且与隔膜52分别形成了第一压力腔室及第二压力腔室，该第一压力腔室及第二压力腔室对称设置且结构相同，在本实施例中，仅对其中一个压力腔室56进行详细说明，另一个不做赘述。隔膜52的材质为氯丁橡胶、氟橡胶及丁腈橡胶中或其他材质的任一种，其他材质可包括如柔性金属等，在本实施例中，对隔膜52的材质不做具体限定，只要使得隔膜52能够产生良好形变及适配正常压力上限即可。
隔膜泵5还包括设置在泵体51上的腔室进水口511及与腔室进水口511连通的腔室出水口512，腔室进水口511及腔室出水口512并排设置且设置在联轴器542的一侧。隔膜52上与腔室进水口511及腔室出水口512对应的位置上分别设置有第一开口5221及第二开口5222，以使得腔室进水口511及腔室出水口512与压力腔室56连通设置。诚然，在其他实施例中，腔室进水口511及腔室出水口512也可分别设置在联轴器542的两侧或其他位置，在此不做具体限定，根据实际情况而定。
隔膜泵5还包括与腔室进水口511连通以控制液体进入隔膜泵5的进水单向阀及与腔室出水口512连通以控制液体流出隔膜泵5的出水单向阀。该隔膜泵5还具有与进水管道21连通的泵体进水口513及与传输管道31连通的泵体出水口514，在本实施例中，该泵体进水口513及泵体出水口514分别设置在泵体51的两侧且分别与进水单向阀及出水单向阀连通设置。诚然，在其他实施例中，该泵体进水口513及泵体出水口514也可同时设置在泵体51的某一侧面或其他位置，在此不做具体限定，根据实际情况而定。设置在腔室进水口511一侧的进水单向阀只允许水流从腔室进水口511进入压力腔室56内，而不允许压力腔室56内的水流从腔室进水口511向外流出。相反，设置在腔室出水口512一侧的出水单向阀只允许压力腔室56内的水流自腔室出水口512处流出，而不允许压力腔室56外的水流自腔室出水口512流入至压力腔室56内。
隔膜泵5还包括由驱动机构54驱动并将隔膜52顶起以使得隔膜52发生形 变进而改变压力腔室56的容积大小的顶头机构55，顶头机构55具有与隔膜52接触以将隔膜52顶起的接触面551，隔膜52具有与接触面551接触发生形变以改变压力腔56室的容积大小的动态区域521，接触面551沿顶头机构55的运动方向在隔膜52上的投影始终覆盖动态区域521。对于泵来说，泵的“可变容积量”、流量决定了泵的压力上限，“容积效率”决定了泵能够正常的适配该压力上限。隔膜泵的“容积效率”由多个参数决定，例如，电机的扭力、隔膜52的硬度等。本申请在隔膜52发生形变的使压力腔室56变小，对压力腔室56内流体加压过程中，随着流体压力的逐渐变大，压力流体反向施加到隔膜52上的力始终有接触面551辅助进行支撑，避免出现泄压的情况，即顶头机构55能够驱动动态区域521发生最大的形变以辅助承受压力腔室56的压力，间接最大程度的提高隔膜52的硬度以提高容积效率。
该顶头机构55可为半圆体，该接触面551为朝向动态区域521方向外凸的弧形面，以与隔膜52充分接触。在隔膜52被顶头机构55顶起的过程中，隔膜52所产生的形变的部分趋近于弧形，将接触面551设置为弧形更能贴合隔膜52形变部分以防止产生泄压问题。诚然，在其他实施例中，接触面551的形状也可为其他形状，例如平面等，在此不做具体限定，根据实际情况而定。为了使得顶头机构55与隔膜52更好的接触，接触面551和/或隔膜52朝向顶头机构55的一面为光滑面或不平整面。若接触面551为不平整面，具体的，接触面551设置规则排布或者零散排布的凹槽，隔膜52朝向顶头机构55的一面设有对应的凸起；或者，接触面551设置规则排布或者零散排布的凸起，隔膜52朝向顶头机构55的一面设有对应的凹槽。在本实施例中，该弧形面551为设置有凸起的弧形面551，增大与隔膜52之间的摩擦力以更好的将隔膜52顶起使其发生形变。诚然，在其他实施例中，不平整面也可为波浪面等其他形状，弧形面也可为光滑面，而隔膜52朝向弧形面551设置的面上设置有凸点或凹槽或其他形状的结构，以达到增大摩擦力进而增大发生形变的面积及提高压力腔室56的容积效率的结果，在此不做具体限定，根据实际情况而定。
隔膜泵5还可包括位于接触面551向外突伸的突伸块(未图示)，隔膜52 上设有与突伸块配合的凹陷槽(未图示)，突伸块通过与凹陷槽配合以实现顶头机构55带动隔膜52的动态区域521朝向背离压力腔室56的一侧运动。突伸块的形状不限定，只需达到与凹陷槽相配合以实现顶头机构55带动隔膜52的动态区域521朝向背离压力腔室56的一侧运动的效果即可，在此不做具体限定，根据实际情况而定。
驱动机构54包括电机及与电机连接的偏心轮541，隔膜泵还包括与偏心轮541连接且做往复运动的联轴器542，联轴器542在驱动机构54的驱动下驱动顶头机构55运动以使接触面551推动动态区域521发生形变。顶头机构55与联轴器542靠近压力腔室56的一端相连且由联轴器542带动运动，联轴器542与顶头机构55一体成型或者联轴器542与顶头机构55分体设置。在本实施例中，顶头机构55与联轴器542连接，该顶头机构55固定设置在联轴器542上，该固定方式可通过激光焊接或腔体胶水粘接等方式，在此不做具体限定；或者顶头机构55与联轴器542一体设置。于制造工艺的简便来说，优先选择顶头机构55与联轴器542一体设置，简化了生产步骤及拼装步骤，节省人力，快捷且方便。诚然，在其他实施例中，顶头机构55也可分体设置在联轴器542一侧，联轴器542在电机及偏心轮541的驱动下运动进而带动顶头机构55运动，顶头机构55和联轴器542可以分别由硬度不同的材料制成，顶头机构55的硬度强于联轴器542的硬度，兼顾清洗机重量和隔膜泵的压力。在上述实施例中，接触面551均由单个零部件提供，在又一些实施例中，联轴器542和顶头机构55分体设置，联轴器542朝向隔膜52的一侧也提供接触面551以使隔膜52发生形变，则联轴器542靠近隔膜52的一侧实际是顶头机构55，此时接触面551由多个零部件提供。可以理解的是，用于提供接触面551的零部件，均在本申请顶头机构55的涵盖范围内。
隔膜52还包括与动态区域521连接的静态区域522、及设置在动态区域521、静态区域522外围的环绕部523，环绕部523固定设置在泵体51与盖体53之间，盖体53通过与环绕部523固定连接以达到盖设在隔膜52的目的。环绕部523、静态区域522与动态区域521之间形成有衔接边524，运动过程中，隔膜52形 变至最大位置时，接触面551的外侧边靠近衔接边524设置或与衔接边524重叠设置，在本实施例中，隔膜52形变至最大位置时，接触面551的外侧边与衔接边524重叠设置，此时顶头机构55辅助承受动态区域521的压力，间接提升了隔膜52的硬度以提高压力腔室56的容积效率，进而提升出水压力，避免泄压的问题发生。
盖体53的周边与环绕部523连接以将隔膜52密封设置在泵体51上。呈上述，第一开口5221与第二开口5222设置在静态区域522上并与腔体进水口及腔体出水口连通。在本实施例中，静态区域522设置在动态区域521的一侧，在其他实施例中，静态区域522也可设置在动态区域521的外侧且围绕动态区域521设置，环绕部523则设置在静态区域522最外侧且围绕静态区域522设置，在此不做具体限定，根据实际情况而定。
综上：通过设置有顶头机构55且顶头机构55具有与动态区域521接触的接触面551，该接触面551沿顶头机构55的运动方向在隔膜52上的投影始终覆盖动态区域521，以使得顶头机构55始终全面的辅助承受动态区域521的压力，间接提升了隔膜52的硬度以提高压力腔室56的容积效率，进而提升出水压力，避免泄压的问题发生；
本发明结构简单，操作方便。
以上实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。

Claims (8)

  1. 一种隔膜泵，包括泵体、设置在所述泵体侧的隔膜、盖设在所述隔膜上并与所述隔膜形成压力腔室的盖体及设置在所述泵体内的驱动机构，所述隔膜具有发生形变以改变压力腔室的容积大小的动态区域，其特征在于，所述隔膜泵还包括由所述驱动机构驱动的顶头机构，所述顶头机构具有与所述动态区域接触以使其发生形变的接触面，所述接触面沿所述顶头机构的运动方向在隔膜上的投影始终覆盖所述动态区域，其中，所述接触面和/或所述隔膜朝向所述顶头机构的一面为光滑面或不平整面；所述接触面和/或所述隔膜朝向所述顶头机构的一面，设置有规则排布或零散排布的凹槽或凸起；或者，所述接触面和/或所述隔膜朝向所述顶头机构的一面为波浪形平面；所述隔膜泵还包括位于所述接触面向外突伸的突伸块，所述隔膜上设有与所述突伸块配合的凹陷槽，所述突伸块通过与凹陷槽配合以实现顶头机构带动隔膜的动态区域朝向背离压力腔室的一侧运动；所述驱动机构包括做往复运动的联轴器，所述顶头机构与所述联轴器靠近压力腔室的一端相连且由所述联轴器带动运动，所述联轴器与所述顶头机构一体成型或者所述联轴器与所述顶头机构分体设置。
  2. 如权利要求1所述的隔膜泵，其特征在于，所述接触面为朝向所述动态区域方向外凸的弧形面。
  3. 如权利要求1所述的隔膜泵，其特征在于，所述驱动机构由第一材料制成，所述顶头机构由第二材料制成，所述第二材料的硬度大于所述第一材料的硬度。
  4. 如权利要求1所述的隔膜泵，其特征在于，所述隔膜还包括位于所述动态区域一侧静止设置的静态区域、环绕所述动态区域及静态区域的环绕部，所述环绕部固定在所述泵体和所述盖体之间。
  5. 一种高压清洗机，其特征在于，包括本体、设置在所述本体上的流体输入端及用于向外喷射流体的流体输出端，所述高压清洗机还包括设置在所述本体内且用以与所述流体输入端及流体输出端连接的如权利要求1至4中任一项所述的隔膜泵。
  6. 如权利要求5所述的高压清洗机，其特征在于，所述高压清洗机的出水 压力范围为0.2-1.5MPa，流量范围为1.3-4.2L。
  7. 如权利要求5所述的高压清洗机，其特征在于，所述高压清洗机被配置为具有可选择的：压力清洗模式、流量清洗模式；压力清洗模式的压力大于流量清洗模式，压力清洗模式的流量小于流量清洗模式。
  8. 如权利要求7所述的高压清洗机，其特征在于，所述高压清洗机处于压力清洗模式时，其出水压力为0.2-1.5MPa；所述高压清洗机处于流量清洗模式时，其出水流量为1.3-4.2L。
PCT/CN2020/120628 2019-10-31 2020-10-13 隔膜泵及高压清洗机 WO2021082908A1 (zh)

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JP4103562B2 (ja) * 2002-11-26 2008-06-18 松下電工株式会社 圧電ダイヤフラム型ポンプ及びそれを用いた処理剤吐出機構付き電気かみそり
CN201963527U (zh) * 2011-03-16 2011-09-07 索力雅斯商务咨询(上海)有限公司 隔膜泵和包含该隔膜泵的下置式水瓶机
CN106246513A (zh) * 2016-08-19 2016-12-21 深圳市大疆创新科技有限公司 泵、可移动平台及飞行器
CN107842487A (zh) * 2016-09-18 2018-03-27 苏州宝时得电动工具有限公司 手持式压力清洗机
CN211258952U (zh) * 2019-10-31 2020-08-14 苏州宝时得电动工具有限公司 隔膜泵及高压清洗机

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4103562B2 (ja) * 2002-11-26 2008-06-18 松下電工株式会社 圧電ダイヤフラム型ポンプ及びそれを用いた処理剤吐出機構付き電気かみそり
CN201963527U (zh) * 2011-03-16 2011-09-07 索力雅斯商务咨询(上海)有限公司 隔膜泵和包含该隔膜泵的下置式水瓶机
CN106246513A (zh) * 2016-08-19 2016-12-21 深圳市大疆创新科技有限公司 泵、可移动平台及飞行器
CN107842487A (zh) * 2016-09-18 2018-03-27 苏州宝时得电动工具有限公司 手持式压力清洗机
CN211258952U (zh) * 2019-10-31 2020-08-14 苏州宝时得电动工具有限公司 隔膜泵及高压清洗机

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