CN207111376U - A kind of Miniature diaphragm pump - Google Patents

Abstract

It the utility model is related to a kind of Miniature diaphragm pump, the pump housing (3) being connected including motor (1), with motor (1) front end, motor (1) afterbody is fixed with cover body (16), the switch (161) being horizontally mounted is set on the cover of the cover body (16), and/or fairlead, the socket (162) of installation axially position or the buckle (163) that simultaneously anchor leg is passed for lead is directly buckled into the fairlead.Relative to prior art, the utility model improves the versatility and aesthetics of product, while can realize effective radiating of Miniature diaphragm pump, prevents leak fluid from entering motor, damages motor, and simplifies parts, reduces cost and simplifies operation.

Description

A kind of Miniature diaphragm pump

Technical field

It the utility model is related to a kind of supercharging technology field, more particularly to a kind of Miniature diaphragm pump.

Background technology

Miniature diaphragm pump is widely used to the industries such as water and wastewater industry, agricultural, medical treatment, automobile, ship, it include the pump housing, with The direct current generator of pump housing electrical connection.But many problems in use be present in Miniature diaphragm pump, as wire draw it is unordered, on membrane pump Socket or switch without corresponding to, user using when derive from oneself and additionally involve socket, poor universality, operation is inconvenient, and volume is too big, scattered Thermal effect is bad, takes out installation inconvenience, can not realize autostop shutdown etc..

Such as heat dissipation problem, patent of invention CN101324225A discloses a kind of micro pump with heat abstractor, The patent sets the fan together rotated with rotating shaft in motor shaft front end, sets ventilating opening on motor shell wall, passes through fan Caused heat is distributed to the external world by ventilating opening during operating operates direct current generator.But the device need to take larger space, and dissipate The passage of heat is not smooth enough, causes radiating effect bad, and the connected mode of fan blade and rotating shaft is common assembly method, with it is long when Between operating abrasion, fan occurs the problem of being come off with rotating shaft, reduces performance.

And for example utility model patent CN203632468U is by installing preceding heat-dissipating impeller and rear radiating leaf at motor shaft two The gas flow rates inside electric machine casing are accelerated in wheel, the operating of former and later two impellers, realize radiating.The device is grown in membrane pump After time service, motor can be hot, to take out, it is easy to and hand of burning is mobile inconvenient.

For this reason, it is necessary to be improved to existing Miniature diaphragm pump, to improve the equipment, performance is further improved.

Utility model content

In view of the above problems, one side purpose of the present utility model is to provide one kind to add switch or socket etc. a variety of Combining form, user-friendly, wire draws Miniature diaphragm pump attractive in appearance in order.

Another aspect purpose of the present utility model is to provide that a kind of heat dissipation channel is smooth, good heat dissipation effect, and fan blade is fixed Firm Miniature diaphragm pump.

The purpose of the utility model another aspect is to provide a kind of good sealing effect, the good Miniature diaphragm pump of water resistance.

The purpose of the utility model another aspect is to provide a kind of simplified pressure regulation and operates, can automatically automatically control, assemble jail Gu reliable Miniature diaphragm pump.

Another aspect purpose of the present utility model is to provide a kind of convenient disassembly, facilitates operating personnel to take out and installation Miniature diaphragm pump.

To achieve these goals, the technical solution of the utility model is：A kind of Miniature diaphragm pump, including motor and electricity The pump housing of machine front end connection, it is characterised in that：The motor afterbody is fixed with cover body, sets and is horizontally mounted on the cover of the cover body Switch, and/or fairlead, the socket of installation axially position or directly buckle into pass and fix for lead and draw in the fairlead The buckle of line.

A kind of Miniature diaphragm pump, including motor, the pump housing that is connected with motor front end, it is characterised in that：The motor afterbody Cover body is fixed with, the outer peripheral face of the cover body is outwardly formed a cavity do not closed, sets and be horizontally mounted on the chamber outer surface Switch, and/or fairlead, the socket of installation axially position or directly buckle into pass and fix for lead and draw in the fairlead The buckle of line.

A kind of Miniature diaphragm pump, including motor, the pump housing that is connected with motor front end, it is characterised in that：The motor afterbody If the switch being horizontally mounted, and/or fairlead, the socket of axially position is installed in the fairlead or directly buckled into and is worn for lead Go out the buckle of simultaneously anchor leg.

Further, bottom plate is fixed in the motor bottom surface, the lower end of the bottom plate downwards concave shape into axial direction The bar-shaped trough of extension, the bar-shaped trough is used to place lead, to guide lead to pass through in order.

Further, the motor afterbody is provided with heat emission hole, and motor periphery opposite sides is provided with exhaust vent, motor afterbody Axial-flow leaf is set on motor shaft, the axial-flow leaf is located in cover body, and heat emission hole, exhaust vent and motor internal form supplied gas and followed The logical air channel of circulation.

Further, the motor shaft is in flat shape, is assembled with fan blade internal diameter slight interference；On the fan blade internal diameter inwall Provided with the first elastic bumps, the locating slot being adapted with first elastic bumps is set on motor shaft, the two coordinates limitation fan blade Axial movement.

Further, the pump housing upper and lower side fixes pump cover, and surrounding is faced out close to the pump housing rear end of the motor front end Extend the baffle plate formed, to guide leak fluid between the pump housing and pump cover to be flowed out along baffle plate bearing of trend.

Further, the pump housing front end is provided with pressure switch part, and the pressure switch part includes rear end cap, described Rear end cap formed with respect to pump housing side it is first raised, installed successively between the rear end cap and the pump housing spring, spring compressor, backflow circle, Backflow pad, first projection are fitted snugly within the elastic cavity of the spring.

Further, the Miniature diaphragm pump includes water inlet end, column built in water inlet end or taper filter screen, the filter screen Second boss progress of the positive stop end by taking shape in water inlet end inner surface is spacing, and the free end outer surface of the filter screen is provided with limitation The positioning bar that filter screen rocks, the positive stop end inner surface of the filter screen form the inner web piece suitable for gripping.

Further, the drive end bearing bracket lower end of the pressure switch part is integrally formed with outlet baffle plate, the outlet baffle plate It is provided with the string holes passed for wire, the front end interior surface is provided with back-off, during assembling, wire is passed through by string holes, upset Outlet baffle plate is buckled into the back-off, to cover wire；The motor outer peripheral face is provided with above a foregoing exhaust vent Handle, the handle, which is adopted, to be screwed.

Compared with prior art, the utility model has the advantage of cover body is installed additional in motor afterbody, set on cover body logical Switch, socket, fairlead, so as to improve the versatility of Miniature diaphragm pump, security, bottom plate is set in motor bottom, And open up groove in bottom plate and be used to accommodate lead, guiding lead is drawn in order, and it is irregular, not beautiful enough to improve conventional arrangement of conductors See, the problem of degree of safety is not high；By omitting motor casing, overcome that conventional miniature diaphragm pump volume is big, space-consuming area is big The problem of, while air vent is set in motor afterbody and periphery, suitable for making motor internal form loop backflow with outside, conveniently dissipate Heat, solve the problems, such as that prior art radiating effect is bad well；By setting groove on motor shaft, set on fan blade inwall Put and realize being fastenedly connected for fan blade and motor with the projection of matching grooves；In the rear end face of the pump housing, integrally formed dividing plate is set, The liquid flow direction motor of seepage between pump cover and the pump housing can effectively be prevented；By the way that the elastic cavity of pressure switch part and spring is fastened Coordinate, avoid artificial multiple pressure regulation operation, while simplifying structure, extend the service life of the pump housing, save simultaneously Cost；And filter screen can effectively be filtered to flowing into the liquid in the pump housing, further extend the using effect of the pump housing and use the longevity Life.

Brief description of the drawings

Fig. 1 is Miniature diaphragm pump Structure explosion diagram corresponding to one embodiment of the present utility model.

Fig. 2 is that motor afterbody installs the heat dissipation wind channel structure figure that fan blade is formed additional.

Fig. 3 (a) -3 (b) shows the assembly structure figure of fan blade and motor shaft.

Fig. 4 (a) -4 (b) is the baffle arrangement schematic diagram of pump housing rear end cap.

Fig. 5 (a) -5 (b) is top view, the front view that pressure switch part is combined with the pump housing.

Fig. 6 is the assembling structure schematic diagram of filter screen and filter screen.

Fig. 7 (a) -7 (b) is the structural representation of outlet baffle plate.

Fig. 8 (a) -8 (e) is cover, the motor tail structure schematic diagram of cover body.

Fig. 9 (a) -9 (b) is the assembly structure figure of electric baseboard and motor.

Embodiment

Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng The embodiment for examining accompanying drawing description is exemplary, is only used for explaining the utility model, and it is not intended that to of the present utility model Limitation.

Term " first ", " second " are only used for describing purpose, and it is not intended that the device or member of instruction or hint meaning Part must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.

As shown in figure 1, Miniature diaphragm pump of the present utility model includes motor 1, axial-flow leaf 2, the pump housing 3.With reference to Fig. 8 (a)- 8 (e), Miniature diaphragm pump install the cover body 16 combined closely with it additional in the afterbody of motor 1, and the cover of cover body 16, which is provided with, to be horizontally mounted Switch 161, the switch 161 directly buckled on cover in corresponding hole；Certainly, it is axially fixed to be also provided with the cover of cover body 16 The socket 162 of position, the socket are fixed by screw；Equally, socket can be also not provided with the cover of the second cover body 16, and sets power supply The fairlead that power traction line passes through.It is worth noting that, both can be used for mounting receptacle 162 in the fairlead, axis is achieved Positioning, also can buckle into buckle 163 in portion, for anchor leg directly therein.Simultaneously, it is necessary to remind, user can be according to reality Border needs, and realizes that switch is a variety of with socket, switch and fairlead and buckle, switch, socket, fairlead and buckle etc. on cover body The design of combining form, so as to save cost, improve the versatility of product.

It can also be designed to that the periphery of cover body 16 faces out the cavity 164 that shaping one is not closed, cavity 164 is set on outer surface The switch 161 being horizontally mounted, and/or fairlead, the socket 162 of installation axially position or directly buckle into is worn for lead in fairlead Go out the buckle 163 of simultaneously anchor leg.

It is noted that cover body 16 can not also be installed additional, and the switch that is horizontally mounted directly is set in the afterbody of motor 1, And/or the socket of axially position, and/or the fairlead that power supply machine lead passes through, socket fixed by screw, is provided with fairlead Buckle for anchor leg.

It is irregular in order to solve to arrange after conventional lead is drawn, usually it is placed in outside membrane pump, security and aesthetics are not The problem of high, referring to Fig. 9 (a) -9 (b), as an improvement, originally practical set the bottom plate 6 being fixedly connected in the lower surface of motor 1, should The lower end of bottom plate 6 faces out concave shape into the bar-shaped trough 63 in axial direction extended, and bar-shaped trough 63 is interior to accommodate lead, for guiding The orderly extraction of lead, not only conceals lead, improves the security performance of product, while improves the aesthetics of product.

With reference to shown in Fig. 2,3 (a) -3 (b), Fig. 2 shows motor air channel schematic diagram, and the afterbody of motor 1 is provided with heat emission hole 13, electricity The periphery opposite sides of machine 1 is provided with exhaust vent 14, and axial-flow leaf 2, heat emission hole 13, exhaust vent are set on the motor shaft 11 of the afterbody of motor 1 14 form the air channel 15 of supplied gas circulation with motor internal；Further as shown in Fig. 3 (a) -3 (b), motor shaft 11 is in flat Shape, the internal diameter of fan blade 2 is pressed directly into, realizes and assembled with the slight interference of fan blade 2, prevent fan blade relative axle from rotating；In fan blade 2 Footpath inwall is provided with the first elastic bumps 21, and the locating slot 12 being adapted with the first elastic bumps 21 is set on motor shaft 11, the two Coordinate the axial movement of limitation fan blade.This kind, which designs, to form a complete heat dissipation wind channel with outside inside membrane pump, is made Wind energy is blown over from motor internal, can preferably play thermolysis, and locating slot, projection, axle design in flat shape, can strengthen The fixation of fan blade, installation is simple and reliable, while eliminates motor casing so that membrane pump, which takes up space, to be substantially reduced, and is saved Cost.

Existing Miniature diaphragm pump realizes the sealing between the pump housing and motor frequently with packing ring, but effect is often bad, liquid Ooze out in gap that still can be between pump cover and the pump housing and flow directly into motor, cause motor to be damaged.The utility model is made to this Further improvement, referring specifically to Fig. 1,4 (a) -4 (b).

As shown in Figure 1, the upper and lower side of the pump housing 3 of Miniature diaphragm pump is provided with pump cover 4.As improved technology side of the present utility model Case, the pump housing rear end close to the front end of motor 1 of the pump housing 3 are extended outwardly formed with baffle plate 31, the baffle plate 31 can be around One whole circle of pump housing rear end face, size can be higher than other parts, such as be higher than the radius size of motor 1；Certainly, the baffle plate 31 and pump Body rear end face is directly integrally formed when can be and pass through injection.So not only specious, structure is reliable, while the baffle plate can draw The direction outflow that the liquid of seepage between pump cover and the pump housing extends towards baffle plate is led, is flowed referring specifically to direction shown in arrow in Fig. 4 (a) Go out, and prevent from flowing into motor, cause the damage of motor.

As shown in figure 1, the Miniature diaphragm pump also includes pressure switch part 7.Miniature diaphragm pump of the prior art is usual Screw, pad, spring are set between pressure switch part and the pump housing, realize user to pump housing pressure value by adjusting screw Demand, but parts corresponding to this kind of frame mode are more, and installation is unstable, easily causes pressure value and often changes, and artificial hand Dynamic adjustment screw, changes spring pressure, requires higher to user's specialty, can once user turns screw because not professional enough by mistake Water pump can be caused to damage.Thus, the utility model is improved the point, not only make it that parts are reduced, and is also not required to Want user often to adjust manually, simplify operation, installation is also more firm.

Specifically, referring to Fig. 1,5 (a), 5 (b), Miniature diaphragm pump shown in Fig. 1 includes pressure switch part 7, protection component 8, pressure switch part 7 includes rear end cap 71, drive end bearing bracket 72, switch contact 76, and protection component 8 includes the spring installed successively 81st, spring compressor 82, backflow circle 83, backflow pad 84, the one side of the relative protection component 8 of rear end cap 71, should formed with the second projection 711 Second projection 711 and the elastic cavity of spring 81 are combined closely.So, the spring pressure of protection device passes through fitted position and spring The uniformity of its own resilient controls, it is only necessary to ensure that protruding part may fitted to position with spring fastening assembling, and without debug, It is simple in construction, easy to operate, without manually adjusting spring pressure repeatedly to required value during test, it also avoid user and be ignorant of Maloperation, cause to protect the too low of pressure tune or raise and damage water pump.The specifically top view as shown in Fig. 5 (a), 5 (b), master Content shown in view, when water outlet is closed, because water can nowhere be let out, hydraulic pressure constantly raises, and because hydraulic pressure raises, makes backflow pad 84 Deformation, push the spring cap 82 overcome the elastic force of spring 81 go upward to promote microswitch switch contact 76, loop of cutting off the electricity supply, Make water pump self-stopping, when water outlet is opened, spring force is more than the power of hydraulic pressure, resets above-mentioned part, power supply turn on automatically, water Pump normal work, by the setting of spring force value, control Guan Shuihou, the operating pressure of autostop.

As further improvement of the utility model, as a shown in Figure 6, filter screen is set up in the water inlet of Miniature diaphragm pump 10, filter screen is in cone-shaped, and water inlet inwall is provided with second boss 111, and the positive stop end 101 of filter screen 10 is carried out by second boss 111 Spacing, the periphery of free end 102 is provided with the positioning bar 103 that limitation filter screen rocks, and the inner surface of positive stop end 101, which is formed, is suitable to gripping Inner web piece 104.Boss is set up in water inlet inner surface, when installing filter screen additional, somewhat filter screen can firmly need to only be loaded, boss The axial location of filter screen is limited, radial positioning is positioned by the inner headed face of the cylindrical and water inlet of filter screen porch, the filter screen other end Outer round surface positioning bar is set, positioning can be ensured with as few as possible positioning bar, while minimum is accomplished in the stop to water, and interior If inner web piece make it that dismounting is more convenient, cleaning is simpler, and the structure provides protection for water pump, ensure that normally making for pump With.

As an improvement, the lower end of drive end bearing bracket 72 of pressure switch part 7 is integrally formed with outlet baffle plate 73, on outlet baffle plate 73 Provided with the string holes 74 passed for wire, the inner surface of drive end bearing bracket 72 is provided with back-off 75, and during assembling, wire is passed through by string holes 74, Upset outlet baffle plate 73 is buckled into back-off 75 to cover wire.The globality of product is so improved, while specious, the inside Switch, lead, coupling part do not leak outside, and can prevent water from not splashing directly on switch, lead and connection terminal.Meanwhile The outer peripheral face of motor 1 is provided with the handle 17 above a foregoing exhaust vent, and the handle 17, which is adopted, to be screwed, the handle 17 base end identity distance separates out air holes certain distance, so as to both facilitate the discharge of gas, while can prevent current from entering.

In addition to above-mentioned improvement, other similar improvement are also contained in improvement threshold of the present utility model, herein Do not repeating.

While there has been shown and described that embodiment of the present utility model, it will be appreciated by those skilled in the art that：Do not taking off These embodiments can be carried out with a variety of changes, modification in the case of from principle of the present utility model and objective, replace and deform, The scope of the utility model is limited by claim and its equivalent.

Claims (10)

1. a kind of Miniature diaphragm pump, including motor (1), the pump housing (3) that is connected with motor (1) front end, it is characterised in that：

Motor (1) afterbody is fixed with cover body (16), and the switch (161) being horizontally mounted is set on the cover of the cover body (16), And/or fairlead, the socket (162) of installation axially position or directly buckle into and pass simultaneously anchor leg for lead in the fairlead Buckle (163).

2. a kind of Miniature diaphragm pump, including motor (1), the pump housing that is connected with motor (1) front end, it is characterised in that：

Motor (1) afterbody is fixed with cover body (16), and the periphery of the cover body (16) faces out the cavity that shaping one is not closed (164) switch (161) being horizontally mounted, and/or fairlead, are set on cavity (164) outer surface, is installed in the fairlead The socket (162) of axially position directly buckles into the buckle (163) that simultaneously anchor leg is passed for lead.

3. a kind of Miniature diaphragm pump, including motor (1), the pump housing (3) that is connected with motor (1) front end, it is characterised in that：

Motor (1) afterbody sets the switch (161) being horizontally mounted, and/or fairlead, and axially position is installed in the fairlead Socket (162) or directly buckle into passed for lead and bottom plate is fixed in the buckle (163) of anchor leg, motor (1) bottom surface (6), the lower end of the bottom plate (6) downwards concave shape into the bar-shaped trough (63) in axial direction extended, the bar-shaped trough (63) For placing lead, passed through in order with guiding lead.

4. according to the Miniature diaphragm pump any one of claim 1-3, it is characterised in that：Motor (1) bottom surface is fixed Bottom plate (6), the lower end of the bottom plate (6) downwards concave shape into the bar-shaped trough (63) in axial direction extended, the bar-shaped trough (63) it is used to place lead, is passed through in order with guiding lead.

5. Miniature diaphragm pump according to claim 4, it is characterised in that：Motor (1) afterbody is provided with heat emission hole (13), The periphery opposite sides of motor (1) is provided with exhaust vent (14), and axial-flow leaf (2), institute are set on the motor shaft (11) of motor (1) afterbody State axial-flow leaf (2) to be located in cover body (16), heat emission hole (13), exhaust vent (14) and motor (1) are internally formed supply body circulation The air channel (15) of circulation.

6. Miniature diaphragm pump according to claim 5, it is characterised in that：The motor shaft (11) is in flat shape, with fan blade (2) internal diameter slight interference assembles；Fan blade (2) the internal diameter inwall is provided with the first elastic bumps (21), and motor shaft is set on (11) The locating slot (12) being adapted is acted with first elastic bumps (21), the two coordinates the axial movement of limitation fan blade.

7. Miniature diaphragm pump according to claim 6, it is characterised in that：The pump housing (3) upper and lower side fixes pump cover (4), Face out close to the pump housing (3) rear end of the motor (1) front end and extend around the baffle plate to be formed (31), with guide the pump housing (3) with Leak fluid flows out along baffle plate (31) bearing of trend between pump cover (4).

8. Miniature diaphragm pump according to claim 7, it is characterised in that：The pump housing (3) front end is provided with pressure switch portion Part (7), the pressure switch part (7) include rear end cap (71), and the rear end cap (71) forms the with respect to the pump housing (3) side One raised (711), spring (81) is installed successively between the rear end cap (71) and the pump housing (3), spring compressor (82), backflow enclose (83), Backflow pad (84), described first raised (711) are fitted snugly within the elastic cavity of the spring (81).

9. Miniature diaphragm pump according to claim 8, it is characterised in that：The Miniature diaphragm pump includes water inlet end, water inlet Column built in end or taper filter screen (10), the positive stop end (101) of the filter screen (10) is by taking shape in the second of water inlet end inner surface Boss (111) progress is spacing, and free end (102) outer surface of the filter screen (10) is provided with the positioning bar that limitation filter screen rocks (103), positive stop end (101) inner surface of the filter screen (10) forms the inner web piece (104) suitable for gripping.

10. Miniature diaphragm pump according to claim 9, it is characterised in that：The drive end bearing bracket of the pressure switch part (7) (71) lower end is provided with the string holes (74) passed for wire, institute integrally formed with outlet baffle plate (73), the outlet baffle plate (73) State drive end bearing bracket (72) inner surface and be provided with back-off (75), during assembling, wire is passed through by string holes (74), upset outlet baffle plate (73) button Enter in the back-off (75), to cover wire；Motor (1) outer peripheral face is provided with above a foregoing exhaust vent (14) And the handle (17) being separated in exhaust vent (14) end face, the handle (17), which is adopted, to be screwed.