CN107228066B - Diaphragm pump - Google Patents

Abstract

The present invention provides a kind of diaphragm pump of replacement that can easily and promptly carry out diaphragm assembly.The pumping section unit (Yp) for having diaphragm assembly (6) is assembled or is separated with the motor part unit (Ym) with electric motor (M) and constituted freely by diaphragm pump of the invention.

Description

Diaphragm pump

Technical field

The present invention relates to a kind of diaphragm pumps.

Background technique

In the past, it is known that following diaphragm pump, has: electric motor has the drive shaft rotated around an axle center；Diaphragm Component with multiple diaphragm portions for forming pump chamber and has with the planar formation orthogonal with an axle center and links multiple diaphragm portions Connection pan portion；Retainer part, from the connection pan portion of motor side bearing diaphragm assembly；And housing parts, it is fixed on electronic horse It reaches and inside is equipped with drive shaft, in the diaphragm pump, pass through the fixed retainer parts of more screws and housing parts and benefit It is screwed housing parts and electric motor (for example, referenced patent document 1).

Patent document 1: Japanese Unexamined Patent Publication 2014-13007 bulletin

However, the service life of electric motor is about 10,000 hours, and the service life of diaphragm assembly is calculated as about with gas use 3000 hours (liquid use is about 300 hours), therefore, although electric motor can also use it is likely that because of diaphragm assembly Service life and the function that can not bring into normal play.At this time, it is contemplated that will be used to fix more screws of retainer part and housing parts Unload, decompose diaphragm pump, only replace diaphragm assembly, but due to expending effort and time, and it is possible to occur assembly failure or Therefore a problem that foreign matter is mixed into when assembling although electric motor can also use, has replaced diaphragm pump itself.

That is, there are the following problems: just replacing electric motor before exhausting due to the service life in electric motor, cause to make With the device of diaphragm pump or upkeep cost (operating cost) waste of equipment.

Summary of the invention

Therefore, the diaphragm of the replacement of diaphragm assembly can easily and be promptly carried out the purpose of the present invention is to provide one kind Pump.

To achieve the goals above, diaphragm pump of the invention by the pumping section unit with diaphragm assembly and has electric motor Motor part unit assembling or separation constitute freely.

Also, said motor portion unit has: above-mentioned electric motor, has the drive shaft rotated around an axle center；And shell Component, is fixed on above-mentioned electric motor and inside is equipped with above-mentioned drive shaft, and above-mentioned pumping section unit has: rubber system it is above-mentioned every Membrane module, is formed with multiple diaphragm portions for being used to form pump chamber and having with the planar orthogonal with an above-mentioned axle center and will be more The connection pan portion of a above-mentioned diaphragm portion integrated connection；And retainer part, from the above-mentioned company of the motor side bearing diaphragm assembly Pan portion is tied, in the diaphragm pump, above-mentioned housing parts and above-mentioned guarantor are detachably installed by engaging around an above-mentioned axle center Holder component, above-mentioned pumping section unit and said motor portion unit assemble or separated constitute freely.

Also, the side in above-mentioned housing parts and above-mentioned retainer part is arranged the claw of L-shaped and another Side is arranged to radial outside locking protuberance outstanding, and being engaged with above-mentioned locking protuberance around an above-mentioned axle center by above-mentioned claw will Above-mentioned housing parts are detachably constituted with above-mentioned retainer part.

Also, said motor portion unit has: rotary part, is fixed on above-mentioned drive shaft and rotates around an above-mentioned axle center； And shaft member, the rotary part and the ring in a manner of around the track of above-mentioned axle center description conical surface-shaped are fixed on by skewed Around above-mentioned pumping section unit has: tilting member is equipped with the diaphragm driving portion projected from above-mentioned diaphragm portion to motor-side and is used for By the above-mentioned around above mentioned pump room are expanded or shunk of above-mentioned shaft member, above-mentioned tilting member has is inserted into for above-mentioned shaft member Jack portion, above-mentioned jack portion includes the guidance conical surface, in said motor portion unit and above-mentioned pumping section unit along axis direction It is relatively close to Shi Xiangkong private side and guides above-mentioned shaft member.

Invention effect

In accordance with the invention it is possible to easily and pumping section unit promptly is unloaded from the motor part unit with electric motor, and It is replaced with new pumping section unit.That is, no replacement is required service life unspent electric motor (can continue to using electric motor), it can Reduce the operating cost of the device or equipment using diaphragm pump.It can prevent assembling from making mistakes or assembling in maintenance, maintenance work When a problem that being mixed into foreign matter.

Detailed description of the invention

Fig. 1 is the major part cross sectional side view for indicating a mode of the invention and indicating suction condition.

Fig. 2 is the major part cross sectional side view for indicating discharge state.

Fig. 3 is exploded perspective view.

Fig. 4 is the perspective view of the discrete state of pumping section unit and motor part unit.

Fig. 5 is the perspective view of the abutting state of pumping section unit and motor part unit.

Fig. 6 is the side view for being completed state of pumping section unit Yu motor part unit.

Fig. 7 is the rearview of pumping section unit.

In figure: 1- housing parts, 2- retainer part, 6- diaphragm assembly, 8- tilting member, 9- rotary part, 10- locking Protrusion, 20- claw, 61- diaphragm portion, 62- diaphragm driving portion, 69- link pan portion, 82- jack portion, and 82a- guides the conical surface, 90- axis Component, 94- pump chamber, mono- axle center L-, M- electric motor, Ma- drive shaft, Yp- pumping section unit, Ym- motor part unit.

Specific embodiment

Hereinafter, according to embodiment illustrated, the present invention is described in detail.

As shown in Figures 1 to 4, diaphragm pump according to the present invention has: electric motor M, with what is rotated around an axle center L Drive shaft Ma；Housing parts 1 are fixed on electric motor M；Rotary part 9 is fixed on drive shaft Ma and rotates around an axle center L and drives It is dynamic；Shaft member 90 is fixed on rotary part 9 with skewed；Diaphragm assembly 6, with multiple diaphragm portions 61 for forming pump chamber 94；Pendulum Dynamic component 8 has and is equipped with the interconnecting piece 81 of the diaphragm driving portion 62 projected from diaphragm portion 61 to motor-side and inserted with axis Component 90；Retainer part (bearing part) 2, from motor side bearing diaphragm assembly 6；Middle cover assembly 3, with 61 1 similar shape of diaphragm portion At pump chamber 94；The sucking valve body 7 of umbrella is mounted on middle cover assembly 3 and corresponding with pump chamber 94；Outer cover part 5, with middle cover assembly 3 It is formed together suction passage 92 and discharge duct 96；And liner component 4, it is installed between middle cover assembly 3 and outer cover part 5.

Also, it is a kind of diaphragm pump for fluid, is driven by the rotation of drive shaft Ma, rotary part 9 is carried out around an axle center L Rotation, shaft member 90 describe the track of conical surface-shaped around an axle center L and surround (movement of grinding bar type), the company of tilting member 8 Socket part 81 carries out reciprocally swinging, and each diaphragm driving portion (driving axle portion) 62 of diaphragm assembly 6 carries out (reciprocal) movement of piston, thus Expand or shrink pump chamber 94.

In addition, being made of diaphragm pump motor part unit Ym and pumping section unit Yp, the motor part unit Ym passes through assembling electricity It moves motor M, housing parts 1, rotary part 9 and shaft member 90 and constitutes and (have), the pumping section unit Yp passes through assembling outer cover Component 5, middle cover assembly 3, sucks valve body 7, diaphragm assembly 6 and tilting member 8 and constitutes and (have) liner component 4.

In addition, for ease of description, the projected direction of drive shaft Ma (direction of arrow E1) is known as one side of axle center sometimes To E1, opposite direction (direction of arrow E2) is known as axle center other direction E2.

In motor part unit Ym, the bottom wall part 19 of housing parts 1 is fixed on to one end of electric motor M with mounting screw 99 Face (drive shaft side end face) and drive shaft Ma is projected in the inside of housing parts 1, the drive shaft Ma in housing parts 1 is inserted into The driving shaft mounting hole of the recessed motor-side end face in rotary part 9 is simultaneously fixed by indentation or binding material, and by axle portion Part 90 is with the insertion recess portion relative to the skewed recessed end face (one side end face of axle center) in rotary part 9 of insertion an axle center L 9d is simultaneously fixed by indentation or binding material etc., to carry out integrated (blocking).

In pumping section unit Yp, arranging is successively overlapped from the one direction side E1 of axle center in retainer part 2, diaphragm group is installed Part 6 and middle cover assembly 3, liner component 4 and the outer cover part 5 for sucking valve body 7, are inserted through outer cover portion for group cartridge screw 98 with string-like Simultaneously spiral shell solid (fixation) is in retainer part 2 for part 5 and middle cover assembly 3, by outer cover part 5 and middle cover assembly 3 to clamp shape holding Liner component 4, and by retainer part 2 and middle cover assembly 3 to clamp the connection pan portion 69 that shape keeps diaphragm assembly 6, from And carry out integrated (blocking).

Also, pumping section unit Yp has sucking oral area 91, suction passage 92, inlet valve 93, pump chamber 94, dump valve 95, row Flow path 96 and fluid discharge outlet portion 97 out.

That is, the fluid for being configured to streaming flows in pumping section unit Yp and will not contact the group for constituting motor part unit Ym Part.

In addition, as shown in Figures 4 to 6, housing parts 1 detachably being installed by the engaging around an axle center L and are protected Holder component 2, motor part unit Ym and pumping section unit Yp assemble or separated constitute freely.

Housing parts 1 are the resin parts of bottomed tube, and cylindric peripheral wall portion 13 have from outer peripheral surface 13d to Multiple (2) locking protuberances 10 that radial outside projects.

Locking protuberance 10 is the semi-circular shape for protruding (swell) to motor-side when viewing from the side, and is circumferentially face 13d Vertical view arc-shaped (cross section shape is arc-shaped).

Retainer part 2 is the resin parts for having cap tube shape, and is had in cylindric peripheral wall portion 23 from outer peripheral surface 23d Multiple (2) outsides built-up welding portion 24 projected to radial outside, and with from each outside built-up welding portion 24, to motor-side, (axle center is another Direction E2) claw 20 of L-shaped that projects.

The outer diameter of the peripheral wall portion 13 of the outer diameter and housing parts 1 of the peripheral wall portion 23 of retainer part 2 is equally It is formed

Claw 20 includes locking plate (stopper) portion 20e, from the motor side end edge in outside built-up welding portion 24 along axle center side To (more than the motor-side end face 2b of peripheral wall portion 23) prominent to motor-side；And hooking sheet portion 20f, from the motor of locking plate portion 20e Side end circumferentially projects.

The front end of hooking sheet portion 20f has to one direction E1 of axle center protrusion and is the convex of trapezoidal chevron shape when side view is observed Portion 20g out.

In Fig. 7, claw 20 and outside built-up welding portion 24 are arc-shaped (cross section shape is arc-shaped) when looking up observation, and The radius of the curvature of the inner circumferential arc surface 20c half and outer peripheral surface 13d of the peripheral wall portion 13 of housing parts 1 is equally formed.

By forming claw 20 with arc-shaped, the radial dimension of enlargement for being able to suppress diaphragm pump entirety (can reduce Radial dimension).

In addition, retainer part 2 has the multiple inside built-up welding projected from the inner peripheral surface 23c of peripheral wall portion 23 to radially inner side Portion 26, and there is the (reference of guidance projection piece 25 projected from each inside built-up welding portion 26 (more than motor-side end face 2b) to motor-side Fig. 1 and Fig. 2).

Guide projection piece 25 when looking up observation be (cross section) arc-shaped, and the radius of curvature of periphery arc surface 25d with The radius of the inner peripheral surface 13c of the peripheral wall portion 13 of housing parts 1 is equally formed.

In illustrated example, guidance projection piece 25 is equipped with 3 around an axle center L.

Also, as shown in Figure 1, Figure 2 and Fig. 7 shown in, for shaft member 90 be inserted into tilting member 8 jack portion 82 in open end With the guidance conical surface 82a expanding towards motor-side.

As shown in figure 4, if motor part unit Ym and pumping section unit Yp is relatively close to along axis direction, before shaft member 90 The guidance conical surface 82a sliding contact at end and tilting member 8, shaft member 90 are smoothly directed to hole private side (axle center side E1) And it is inserted into.

Also, if the front end of shaft member 90 is abutted with the open end in the jack portion 82 of tilting member 8, tilting member 8 Boss portion 80 swings because of flexible deformation (flexible) of diaphragm portion 61 and along shaft member 90, therefore, even if shaft member 90 is to incline It is ramp-like, also can smoothly it be inserted into.Also, the driving force that electric motor M can be obtained is transmitted to tilting member 8 via shaft member 90 (internal) connecting state.

Also, the periphery arc surface 25b of multiple guidance projection pieces 25 connects with the inner peripheral surface 13c of housing parts 1 sliding respectively Touching is close, and is disposed in housing parts 1 with embedded shape, and retainer part 2 and housing parts 1 are positioned concentrically.

As shown in figure 5, if (the peripheral wall portion 23 of (peripheral wall portion 13) end face 1a and retainer part 2 in housing parts 1 ) motor-side end face 2b makes pumping section unit Yp and motor part unit Ym around axle center L different regulation to each other in the state of abutting Engagement direction relative rotation, then locking protuberance 10 pushes the protrusion 20g of claw 20 to motor-side and keeps hooking sheet portion 20f elastic Deformation is to cross protrusion 20g.

Also, as shown in fig. 6, the (pair of right and left of (pair of right and left) claw 20 of retainer part 2 and housing parts 1 ) locking protuberance 10 becomes and around what an axle center L engaged be completed state.

Also, pumping section unit Yp and motor part unit Ym are around axle center L different regulation engagement direction relative rotation to each other When, the periphery arc surface 25d and the inner peripheral surface 13c of housing parts 1 of guidance projection piece 25 are in slidable contact with each other, and keep concentric While smoothly rotate.

It is completed under state, even if pumping section unit Yp is sent out with motor part unit Ym along the external force that an axle center direction L separates The effect of waving also can prevent to separate by the hooking sheet portion 20f of claw 20 with the locking of locking protuberance 10.

Additionally, it is preferred that locking protuberance 10 slightly pushes the hooking sheet portion 20f of claw 20 to pump side under the state that is completed And make its flexible deformation, by the pushing force, the other end 2b of retainer part 2 is tightly attached to an end face of housing parts 1 1a prevents the loosening of axis direction.

If also, with defined operation rotary force make pumping section unit Yp and motor part unit Ym around an axle center L to each other not Same regulation releases direction relative rotation, then locking protuberance 10 pushes the protrusion 20g of claw 20 and makes hooking sheet portion 20f to horse Protrusion 20g is crossed while up to side flexible deformation, to release fastening state.In addition, being revolved being applied with than defined operation When turning the small external force of power, locking protuberance 10 will not cross protrusion 20g and keep fastening state.

Also, it is completed under state, if the drive shaft Ma of electric motor M is rotated to the direction N rotated around an axle center L, Then as shown in fig. 6, pumping section unit Yp can receive the rotating torques T with the direction of rotation N same direction.However, being completed shape The locking plate portion 20e of claw 20 is disposed in than locking protuberance 10 close to the upstream side of direction of rotation N under state, is configured to even if rotation The square T that walks around acts on pumping section unit Yp, and locking plate portion 20e can also be abutted with locking protuberance 10 and be received rotating torques T.

In other words, the direction of rotation N of above-mentioned regulation engaging direction of rotation and drive shaft Ma are the same direction.

Also, the service life of the rubber products such as diaphragm assembly 6 will exhaust or rubber product generate it is bad when, if from Fig. 6's Be completed state make in such a way that claw 20 and locking protuberance 10 are circumferentially separated pumping section unit Yp and motor part unit Ym around Different regulation releases direction with defined operation rotary force relative rotation to one axle center L to each other, then the more excess convexity of locking protuberance 10 Out portion 20g and release engaging as shown in Figure 5, later, as shown in figure 4, pumping section unit Yp and motor part unit Ym can be made It is separated along axis direction.

Also, the new pump of (the carrying out blocking in advance) that will be provided with the rubber product with guideline lives and appropriate quality Portion unit Yp is sticked in the motor part unit Ym after separation and is assembled, to constitute diaphragm pump.

In other words, shared motor portion unit Ym makes pumping section unit Yp replacement freely.

That is, can be detached from by the engaging of housing parts 1 and retainer part 2 to be switched to the connection of outer side and keep shape State or separable state, also, it is switched to by the plug in the jack portion 82 of shaft member 90 and tilting member 8 company of private side Hold mode or separable state are tied, in particular, private side is configured to that power connection and power disjunction can be carried out by above structure.

Also, it is logical in each check when for the medical treatment such as bacterium or virus, blood or medicament or research inspection Check device Replacement pumping section unit Yp is crossed, erroneous detection caused by capable of preventing because of the residue of pump chamber 94 or each flow path is looked into or polluted.Without every Pump chamber 94 or each flow path are cleaned when secondary inspection, can reduce the risk of infection or biohazard, therefore very safe.

Also, in the heating and moistening device of artificial respirator, by according to each patient or replacement of each specified time limit pump Portion unit Yp, it is very hygienic, it being capable of Fang Zhi sewage dye or nosocomial infection.

Also, in sprayer (medicine liquid spray equipment), as air stream purposes in use, due to medical fluid adverse current etc., When pump chamber 94 or each flow path Bei sewage contaminate, by replacing pumping section unit Yp, can wholesomely it use.

Here, the component for constituting motor part unit Ym is further illustrated, then as shown in Figure 1 to Figure 3, housing parts 1 is made of resin component, and multiple fixes for motor in bottom wall part 19 with the centre bore inserted for drive shaft Ma and having The installation through hole inserted with mounting screw 99.Rotary part 9 is the resin parts of short cylindrical shape, and face 9a has at one end There is insertion recess portion 9d.Also, other end is recessed with driving shaft mounting hole.Shaft member 90 is the metal part of pole shape, and Front end (the one direction side end El of axle center) is formed as coniform or circle mountain shape.Electric motor M is short cylindrical shape component, and another End face has electric wiring interconnecting piece (illustration omitted).

Also, the component for constituting pumping section unit Yp is further illustrated, then tilting member 8 is made of resin component, and Boss portion 80 is included, has and plugs the jack portion 82 being inserted into freely for shaft member 90；And interconnecting piece 81, from boss portion 80 One end is prominent to radial outside with umbrella.Interconnecting piece 81 is 3 forked umbellate form components, and there are 3 diaphragm driving portions 62 to divide The mounting hole 81a Cha Tong and not being fitted into.

Diaphragm assembly 6 has multiple diaphragm bodies 60, and the multiple diaphragm body 60 includes the diaphragm portion 61 of bowl-type；Film circle The dump valve canister portion 65 of tubular extends shape to one direction El of axle center from the opening peripheral part of diaphragm portion 61 and projects；And diaphragm driving Portion's (driving axle portion) 62, it is prominent from diaphragm portion 61 to motor-side (axle center other direction E2).

Also, diaphragm assembly 6 is that 3 diaphragm bodies 60 are arranged in the circumferencial direction around axis of rotation L with 120 degree at equal intervals And by the tabular of the planar with an axle center L-orthogonal link pan portion (cushion part) 69 by diaphragm portion 61 (dump valve canister portion 65 Near base end part) link and the rubber parts of integrated formation.

Retainer part 2 is made of resin component, and includes and abut with the connection pan portion 69 of diaphragm assembly 6 and with from motor The supporting disk wall portion 21 of the mode of side bearing and the planar of an axle center L-orthogonal；Provide in supporting disk wall portion 21 and with each diaphragm portion 61 corresponding multiple rear hole portions 22；And from the outer edge of supporting disk wall portion 21 to the peripheral wall portion 23 of motor-side cylindrical shape outstanding.

Middle cover assembly 3 is made of resin component, and has in pump side (back side) with 3 corresponding with the number of diaphragm body 60 The seat portion 31 of round-ended cylinder shape, the seat portion 31 and diaphragm body 60 (diaphragm portion 61) of the bottomed cylindrical are formed together pump chamber 94。

Seat portion 31 has the cylindric wall portion 31a of discharge valve seat, with the inner circumferential of the dump valve canister portion 65 with diaphragm body 60 It is close to the mode that separation covers freely and contacts in face.

That is, constituting dump valve 95 by the cylindric wall portion 31a of the dump valve canister portion 65 of diaphragm assembly 6 and middle cover assembly 3.

Also, middle cover assembly 3 includes sucking valve seat bottom wall part 31b, is equipped with sucking valve body 7 and having provided and is used for It is connected to the inlet hole 33 of pump chamber 94 and suction passage 92.

That is, constituting inlet valve 93 by the bottom wall part 31b of the valve portion 71 of sucking valve body 7 and middle cover assembly 3.

It sucks valve body 7 and is the rubber parts of umbrella, and be mounted on bottom wall part 31b to insert shape, valve portion 71 is arranged to root (opening and closing is freely) inlet hole 33 can be opened and closed according to the expanding or shrinking (compression) of pump chamber 94.Outer cover part 5 is made of resin component, And have from one end towards one direction E1 chimney-like of axle center sucking oral area 91 outstanding and outlet mouth 97.Liner component 4 be with The rubber parts of the flat disk shape formed with the planar of an axle center L-orthogonal, seal between outer cover part 5 and middle cover assembly 3 Shape separates suction passage 92 and discharge duct 96, also, prevents outside, suction passage 92, discharge duct 96 in sucking oral area 91 It is connected to the part other than outlet mouth 97.

That is, being formed by middle cover assembly 3, liner component 4, outer cover part 5 and diaphragm assembly 6 for fluid is outer via coming from The sucking oral area 91 in portion imports the suction passage 92 of pump chamber 94 and for the fluid of pump chamber 94 is outside via outlet mouth 97 The discharge duct 96 of portion's discharge.

In addition, the present invention is able to carry out design alteration, the structure of pumping section unit Yp can be following structure: in middle cover assembly 3 are arranged the outlet mouth 97 of chimney-likes and are provided with the insert of outlet mouth 97 for the chimney-like of middle cover assembly 3 in outer cover part 5 Hole portion.Or, or the knot of the sucking valve portion of tab-like and the discharge valve portion of tab-like is provided in diaphragm assembly 6 Structure.Or, or the knot of the discharge valve portion of the sucking valve portion peace ligule of the prominent wall-like of circular arc is provided in liner component 4 Structure.Or, or the structure of the inlet valve film of short cylinder shape is provided in liner component 4.The number of diaphragm body 60 increases and decreases It is free, but preferably 3 or 4.

And it is possible to which claw 20 is set to housing parts 1, locking protuberance 10 is set to retainer part 2, but compare The intensity of locking protuberance 10, claw 20 is weaker, compared with when locking protuberance 10 is set to housing parts 1, it is possible to lead to horse Service life up to portion unit Ym is reduced, it is therefore preferable that locking protuberance 10 is set to housing parts 1.

Also, it is also configured to switch by the plug of the shaft member 90 and insertion recess portion 9d of rotary part 9 For the connection hold mode or separable state of private side, linked and power disjunction with carrying out power.That is, shaft member 90 can be consolidated Tilting member 8 is scheduled on and a part as pumping section unit Yp, in the insertion recess portion 9d of the rotary part 9 of motor part unit Ym Plug assembles freely or separation is constituted freely.However, due to metal shaft member 90, the rotary part 9 of resin Insertion recess portion 9d is possible to expand (service life is reduced compared with when shaft member 90 to be set to motor part unit Ym) because of abrasion, because This, preferably shaft member 90 is fixed on rotary part 9.

As described above, diaphragm pump of the invention is by the pumping section unit Yp with diaphragm assembly 6 and with the horse of electric motor M Up to portion unit Ym assemble or separate constitute freely, therefore, can easily and promptly unload pumping section list from motor part unit Ym First Yp and replaced.That is, no replacement is required, service life unspent electric motor M (can continue to using electric motor M), can subtract Less using the device of diaphragm pump or the operating cost of equipment.It can prevent because being mixed into when breakage, the assembling when decomposing are made mistakes, assembled Unfavorable condition caused by the maintenances such as foreign matter, maintenance work.It can easily, rapidly and wholesomely replace diaphragm assembly 6.

Also, motor part unit Ym has: electric motor M, has the drive shaft Ma rotated around an axle center L；And housing section Part 1, is fixed on electric motor M and inside is equipped with drive shaft Ma, and pumping section unit Yp has: the diaphragm assembly 6 of rubber system has Multiple diaphragm portions 61 for being used to form pump chamber 94 and have to be formed with the planar of an axle center L-orthogonal and by multiple diaphragm portions 61 The connection pan portion 69 of integrated connection；And retainer part 2, from the connection pan portion 69 of motor side bearing diaphragm assembly 6, also, Housing parts 1 and retainer part 2 are detachably installed by the engaging around an axle center L, by pumping section unit Yp and motor Portion unit Ym assembling or separation are constituted freely, therefore can easily carry out assembly working and mask work.By being pumped The replacement of portion unit Yp can be used wholesomely without cleaning, and medical treatment, medicament, inspection Check, beverage etc. can be greatly decreased Utensil (device) cleaning effort and time, and health can be improved.Compared with other component, it can make repeatedly With the electric motor M of high price and operating cost can be reduced.Also, without cut off electric motor M electric wiring or again into Row wiring is also able to carry out the maintenance of diaphragm pump, checks even if unskilled electric wiring technology.

Also, the side in housing parts 1 and retainer part 2 is arranged the claw 20 of L-shaped and sets in the other side It sets to radial outside locking protuberance 10 outstanding, is engaged around an axle center L by housing parts 1 by claw 20 with locking protuberance 10 It is detachably constituted with retainer part 2, therefore, maintenance, maintenance work personnel can intuitively, easily and promptly carry out Mask work and assembly working.Structure is simple, can easily be manufactured, be suitable for mass production.Structure is simple, Neng Goushi Now miniaturization and lightweight (being able to suppress the enlarged and re-quantization of diaphragm pump overall dimensions).

Also, motor part unit Ym has: rotary part 9, is fixed on drive shaft Ma and rotates around an axle center L；And axle portion Part 90 is fixed on rotary part 9 and circular, the pumping section in a manner of around the track of axle center L description conical surface-shaped by skewed Unit Yp has: tilting member 8, is equipped with the diaphragm driving portion 62 projected from diaphragm portion 61 to motor-side and for passing through axle portion Part 90 surround to expand or shrink pump chamber 94, and tilting member 8 has the jack portion 82 being inserted into for shaft member 90, and jack portion 82 has Have for being relatively close to Shi Xiangkong private side guidance shaft member 90 along axis direction in motor part unit Ym and pumping section unit Yp Conical surface 82a is guided, therefore can easily and promptly be assembled, and assembling fault can be reduced.Replacement can be reduced The number of components of the side pumping section unit Yp and waste can be reduced.

Claims (2)

1. a kind of diaphragm pump, which is characterized in that

There to be the pumping section unit (Yp) of diaphragm assembly (6) to assemble or divide with the motor part unit (Ym) with electric motor (M) From constituting freely, wherein

Said motor portion unit (Ym) has: above-mentioned electric motor (M), has the drive shaft (Ma) rotated around an axle center (L)；And Housing parts (1), are fixed on above-mentioned electric motor (M) and inside is equipped with above-mentioned drive shaft (Ma),

Above-mentioned pumping section unit (Yp) has: the above-mentioned diaphragm assembly (6) of rubber system, with it is multiple be used to form pump chamber (94) every Film portion (61) and having is formed with the planar orthogonal with above-mentioned an axle center (L) and will multiple above-mentioned diaphragm portion (61) integrateds company The connection pan portion (69) of knot；And retainer part (2), from the above-mentioned connection pan portion (69) of the motor side bearing diaphragm assembly (6),

Above-mentioned housing parts (1) and above-mentioned retainer part are detachably installed by the engaging around an above-mentioned axle center (L) (2), to above-mentioned pumping section unit (Yp) and said motor portion unit (Ym) are assembled or be separated constituting freely,

Side in above-mentioned housing parts (1) and above-mentioned retainer part (2) is arranged the claw (20) of L-shaped and another Side is arranged to radial outside locking protuberance outstanding (10),

Engaged around an above-mentioned axle center (L) by above-mentioned housing parts (1) by above-mentioned claw (20) with above-mentioned locking protuberance (10) It is detachably constituted with above-mentioned retainer part (2).

2. diaphragm pump according to claim 1, wherein

Said motor portion unit (Ym) has: rotary part (9), is fixed on above-mentioned drive shaft (Ma) and around an above-mentioned axle center (L) Rotation；And shaft member (90), it is fixed on the rotary part (9) and with skewed to describe circular conical surface around an above-mentioned axle center (L) The mode of the track of shape is surround,

Above-mentioned pumping section unit (Yp) has: tilting member (8) is equipped with the diaphragm projected from above-mentioned diaphragm portion (61) to motor-side Driving portion (62) and for by above-mentioned shaft member (90) it is above-mentioned it is circular expand or shrink above mentioned pump room (94),

Above-mentioned tilting member (8) has the jack portion (82) for above-mentioned shaft member (90) insertion,

Above-mentioned jack portion (82) includes the guidance conical surface (82a), in said motor portion unit (Ym) and above-mentioned pumping section unit (Yp) Shi Xiangkong private side is relatively close to along axis direction guide above-mentioned shaft member (90).