CN107750307B - Diaphragm pump assembly - Google Patents
Diaphragm pump assembly Download PDFInfo
- Publication number
- CN107750307B CN107750307B CN201680034710.3A CN201680034710A CN107750307B CN 107750307 B CN107750307 B CN 107750307B CN 201680034710 A CN201680034710 A CN 201680034710A CN 107750307 B CN107750307 B CN 107750307B
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- CN
- China
- Prior art keywords
- suction
- discharge
- diaphragm
- hole
- fluid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000012530 fluid Substances 0.000 claims abstract description 36
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 238000007667 floating Methods 0.000 claims description 18
- 238000003780 insertion Methods 0.000 claims description 17
- 230000037431 insertion Effects 0.000 claims description 17
- 230000008878 coupling Effects 0.000 claims description 16
- 238000010168 coupling process Methods 0.000 claims description 16
- 238000005859 coupling reaction Methods 0.000 claims description 16
- 238000005192 partition Methods 0.000 claims description 15
- 238000007599 discharging Methods 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 10
- 238000010079 rubber tapping Methods 0.000 claims description 4
- 239000007779 soft material Substances 0.000 claims description 2
- 230000001174 ascending effect Effects 0.000 claims 1
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 230000001737 promoting effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000010408 film Substances 0.000 description 7
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000541 pulsatile effect Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- F04B43/025—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms two or more plate-like pumping members in parallel
- F04B43/026—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms two or more plate-like pumping members in parallel each plate-like pumping flexible member working in its own pumping chamber
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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
- F04B43/028—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms with in- or outlet valve arranged in the plate-like flexible member
-
- 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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The present invention relates to the diaphragm pump assemblies that a kind of pair of fluid is sucked and spued, more particularly to a kind of includes shell equipped with sucting and spitting unit for being sucked and being discharged to fluid, the sealing element component that above-mentioned sucting and spitting unit are opened and closed, and the diaphragm that the pressure of pipeline is adjusted in order to realize above-mentioned opening and closing, by the inlet hole and the discharge hole that configure multiple circular shapes in above-mentioned sucting and spitting unit, the diaphragm pump assembly for preventing the phenomenon that being torn because of above-mentioned sealing element component caused by frequent use and promoting its durability whereby.
Description
Technical Field
The present invention relates to a diaphragm pump assembly for sucking and discharging fluid, and more particularly, to a diaphragm pump assembly including a housing having a suction part and a discharge part for sucking and discharging fluid, a sealing member for opening and closing the suction part and the discharge part, and a diaphragm for adjusting a pressure of a pipe line to open and close the suction part and the discharge part, in which a plurality of circular suction holes and discharge holes are formed in the suction part and the discharge part, thereby preventing the sealing member from being torn due to frequent use and improving durability thereof.
Background
Generally, a diaphragm pump is a type of pump for driving a fluid flow, and particularly, a pump for pumping a liquid by a reciprocating motion of a leather or rubber membrane having flexibility, and is mainly used for draining a tunnel or an underdrain or supplying fuel to an internal combustion mechanism.
The related art of the diaphragm pump as described above includes a registered patent No. 10-1195820 "diaphragm pump".
The above-described conventional art discloses a diaphragm pump in which a sealed structure is provided in a pump housing installed between a motor housing and a pump head, and even if a rupture portion is formed due to fatigue or deterioration of the diaphragm and thus gas sucked in leaks from a pump chamber into the pump housing, the leak gas can be prevented from further leaking from the pump housing to the outside of the pump, and a configuration in which the pump housing is disposed between the pump head and the motor housing can prevent the pump from becoming large in size.
Further, the prior art includes a registered patent No. 10-1182477 "diaphragm pump for fluid".
The above-described prior art discloses a diaphragm pump for fluid, including a diaphragm assembly, a suction valve film assembly, and an intermediate cover body, wherein the diaphragm assembly includes: the diaphragm is in a bowl shape and is formed by opening towards one side of the axis; a discharge valve thin film portion formed in a short cylindrical shape by extending an opening edge portion of the diaphragm toward one side of the axis; a diaphragm portion integrally connecting a plurality of diaphragms in a circumferentially equal distribution manner in a planar shape orthogonal to the axis; further, the suction valve film aggregate includes: a flat plate portion having a planar shape orthogonal to the axis; a plurality of suction valve films which are formed in a short cylindrical shape and protrude from the flat plate portion in the other direction of the axial center in a manner of being equally distributed circumferentially; further, the intermediate lid body includes: a discharge valve sheet portion having a cylindrical shape and interposed between the diaphragm assembly and the suction valve film assembly, the discharge valve film portion being in free contact with an outer peripheral surface thereof so as to be able to be attached to or detached from the outer peripheral surface; the suction valve sheet portion is arranged concentrically with the discharge valve sheet portion in a circular shape, and the suction valve film is in contact with the outer peripheral surface thereof in a manner allowing the suction valve film to be attached to or detached from the outer peripheral surface.
In addition, the prior art also includes registered patent No. 10-1332052 "pulsatile pump with diaphragm".
The above prior art discloses a pulsatile pump comprising: a drive unit; a piston which moves up and down and translates by the rotation-translation movement conversion part of the driving unit; a diaphragm connected to the piston; and a head portion in which a pump space is partitioned by the diaphragm into a fluid chamber connected to the inflow nozzle and the discharge nozzle and a machine chamber into which the piston moves.
In addition, the prior art also includes registered patent No. 10-0193344 "diaphragm pump".
The above-mentioned prior art discloses a diaphragm pump, includes: an upper housing forming an annular rib on an inner side; a lower housing coupled to the upper housing and forming a plurality of partitions at regular intervals; a valve support body which is positioned between the upper shell and the lower shell and is combined with the annular rib, a 1 st space and a 2 nd space are formed between the upper shell and the annular rib, and a plurality of water inlet holes which are connected with the 1 st space and communicated with each other and a plurality of water outlet holes which are connected with the 2 nd space and communicated with each other are respectively formed at certain intervals; and a plurality of diaphragms forming pump chambers respectively connected and communicated with the water inlet holes and the discharge holes.
However, in all of the above-mentioned conventional techniques, the seal members provided in the water absorbing portion and the water discharging portion are moved to be opened and closed by the diaphragm, and as the frequency of use of the pump is increased, the seal members are more likely to be worn by the fluid pressure of the water absorbing portion and the water discharging portion, and thus the durability of the seal members is reduced. As shown in registered patent No. 10-0193344, since the small holes for absorbing or discharging water to the fluid are in the shape of long holes, abrasion of the seal member is easily caused and further the function of the pump is lost.
Disclosure of Invention
The present invention is directed to solve the above conventional problems and to provide a diaphragm pump assembly including:
a housing provided with a suction portion and a discharge portion; a sealing member provided in the suction portion and the discharge portion; and a diaphragm disposed on the housing, which drives the sealing member to move up and down by the lifting movement, thereby opening and closing the suction part and the discharge part; wherein, the suction hole and the discharge hole arranged in the suction part and the discharge part are configured as a plurality of small holes with circular shapes, thereby minimizing the abrasion phenomenon of the sealing element caused by the flow of the fluid.
Another object of the present invention is to provide a diaphragm pump assembly in which a sealing member is pushed or pulled by additionally providing an upper diaphragm so that the upper diaphragm is lifted and lowered in accordance with the lifting and lowering movement of the diaphragm to adjust the pressure inside the pipe.
Another object of the present invention is to provide a diaphragm pump assembly in which a triangular frame for guiding the up-and-down movement of the diaphragm is provided, and a pushing portion of the triangular frame pushes a lower portion of the diaphragm, thereby allowing the diaphragm to be naturally lifted and lowered.
In order to achieve the above object, a diaphragm pump assembly according to the present invention includes:
a housing including an upper body including a suction portion for sucking a fluid, a discharge portion for discharging the sucked fluid, and a pipe line for moving the fluid by connecting the suction portion and the discharge portion, and a lower body coupled to a lower portion of the upper body and having a plurality of insertion holes formed therein;
a sealing member including a suction sealing member for opening and closing the suction portion and a discharge sealing member for opening and closing the discharge portion;
a diaphragm disposed between the upper body and the lower body, and sucking or discharging fluid by moving the suction seal or the discharge seal up and down;
a triangular frame which is arranged at the lower part of the shell and guides the lifting movement of the diaphragm;
wherein,
the suction portion and the discharge portion are provided with a suction hole and a discharge hole, respectively, and the suction hole and the discharge hole are provided in a circular shape.
The diaphragm pump assembly according to the present invention includes a housing including a suction portion for sucking a fluid and a discharge portion for discharging the sucked fluid, and a seal member provided in the suction portion and the discharge portion, wherein the suction hole and the discharge hole provided in the suction portion and the discharge portion are arranged in a small hole having a circular shape, so that the degree of wear of the seal member can be reduced and the durability thereof can be further improved as compared with a conventional pump in which a small hole having a long hole shape is formed.
In addition, by additionally providing an upper diaphragm for adjusting the pressure inside the pipe line in order to push or pull the seal member, the upper diaphragm can naturally rise together with the diaphragm when the diaphragm rises, so that the discharge seal is pushed by the pressure to open the discharge hole, and conversely, when the diaphragm and the upper diaphragm fall, the discharge seal is pulled to close the discharge hole and open the suction seal, thereby effectively realizing the function of the pump.
In addition, the triangular frame is additionally arranged at the lower part of the diaphragm for the lifting motion of the diaphragm, so that the diaphragm is driven to lift together when the triangular frame is driven by the driving part to lift, and the pushing part of the triangular frame is contacted with the lower part of the diaphragm to effectively drive the diaphragm to lift, thereby improving the efficiency of the pump.
Drawings
Fig. 1 is an oblique view of a diaphragm pump assembly to which the present invention is applied.
Fig. 2 is an exploded perspective view of a diaphragm pump assembly to which the present invention is applied.
Fig. 3 is an embodiment of a diaphragm pump assembly to which the present invention is applied.
[ notation ] to show
A: diaphragm pump assembly
10: outer casing
11: upper body
111: pipeline
113: partition wall
115: suction part
115A: suction hole
115B: suction seal fixing hole
117: discharge part
117A: discharge hole
117B: discharge seal fixing hole
119: stopping protrusion
13: lower body
131: insertion part
131A: inserting hole
20: seal member
21: suction seal
211: suction opening/closing part
213: suction seal coupling protrusion
23: discharge seal
231: discharge opening/closing part
233: spit-out sealing member coupling projection
30: diaphragm
31: projecting bump
33: placing hole
35: placing part
37: swimming part
39: upper partition board
391: pressurization part
393: screw joint
393A: screw combination hole
393B: straight line part
40: frame structure
41: main body part
43: push part
431: pressure surface
433: inner plug-in part
45: self-tapping screw
47: bearing assembly
471: bearing screw
Detailed Description
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
The present invention can be variously modified and has a plurality of different forms, and an implementation (aspect) (or embodiment) thereof will be described in detail below. However, the present invention is not limited to the specific embodiments disclosed, and should be understood to include all modifications, equivalents, and alternatives falling within the spirit and scope of the present invention.
In the drawings, the same reference symbols, especially the tens and unit digits being the same or the tens, unit digits and letters being the same, represent the components having the same or similar functions, and unless otherwise specified, the components represented by the respective reference symbols in the drawings should be understood as the components complying with the above-mentioned standards.
In addition, for convenience of understanding, the sizes or thicknesses of the components in the drawings may be enlarged (or thickened) or reduced (or thinned) or simplified, but the scope of the present invention should not be limited thereby.
The terms used in this specification are used only for describing a specific embodiment (aspect) (or embodiment) and are not intended to limit the present invention. Unless the context clearly dictates otherwise, singular forms of statements include the plural. In the present application, terms such as "comprising" or "consisting of … …" are used only to indicate the presence of the features, numbers, steps, actions, components, or combinations thereof described in the specification, and are not intended to preclude the presence or addition of one or more other features, numbers, steps, actions, components, or combinations thereof.
Unless otherwise defined, all terms used in the present specification including technical or scientific terms have the same meaning as commonly understood by one having ordinary knowledge in the art to which the present invention belongs. Terms commonly used, which have been defined in dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
First, as shown in fig. 1 and 2, the present invention includes: a housing 10 including a suction portion 115 for sucking a fluid and a discharge portion 117 for discharging the sucked fluid, for sucking and discharging the fluid; a sealing member 20 for opening and closing the suction portion 115 and the discharge portion 117; and a diaphragm 30 for floating the seal member 20.
Each of the configurations will be described in more detail below. The housing 10 is composed of an upper body 11 and a lower body 13, wherein the lower body 13 has a triangular shape with three corners, and an insertion portion 131 is formed inside the lower body. Also, insertion holes 131A are formed in the lower body 13, and the insertion holes 131A are respectively provided at the corners of the lower body 13.
The upper body 11 is provided above the lower body 13, and the upper body 11 is provided above the lower body 13 in a triangular shape similar to the lower body 13 so as to cover the three insertion holes 131A formed in the lower body 13.
Meanwhile, the upper body 11 is formed with fluid-movable pipes 111, the pipes 111 are respectively provided at the respective corners, and partition walls 113 for preventing the fluid from entering the adjacent pipes 111 are formed between the pipes 111 provided at the respective corners.
For convenience of explanation, the regions partitioned by the partition walls 113 to form the three channels 111 are defined as the 1 st to 3 rd regions, respectively, and the 1 st to 3 rd regions are all formed in the same shape, and therefore, one of the regions will be explained as an example.
First, the suction portion 115 and the discharge portion 117 are provided in the 1 st region, the suction portion 115 is provided at an edge of the upper body 11, and the discharge portion 117 is formed inside the suction portion 115.
Further, a stopper protrusion 119 for preventing fluid from entering between the suction portion 115 provided at each corner and the discharge portion 117 provided inside is formed on the upper side surface of the upper body 11, whereby when fluid flows into the suction portion 115 from the upper surface of the upper body 11, the fluid is discharged to the upper direction of the upper body 11 through the discharge portion 117 located in the same area via the duct 111 at the lower portion of the upper body 11.
Meanwhile, in order to achieve the above-described suction and discharge actions, a suction hole 115A and a discharge hole 117A are formed in the suction portion 115 and the discharge portion 117, respectively, and a sealing member 20 including a suction sealing member 21 and a discharge sealing member 23 for opening and closing the suction hole 115A and the discharge hole 117A is provided.
Next, the seal member 20 will be described in more detail. First, a plurality of suction holes 115A are formed at the corners of the suction portion 115, and a suction seal 21 fixing hole 115B is formed at the center of the suction portion 115.
The suction seal 21 is provided with a suction opening/closing portion 211 for opening and closing the plurality of suction holes 115A, and a suction seal coupling protrusion 213 coupled to the fixing hole 115B of the suction seal 21 is formed at the center of the suction opening/closing portion 211.
Thereby, the suction seal 21 is coupled to the suction seal 21 fixing hole 115B on the lower surface of the upper body 11, and the suction opening/closing portion 211 can open and close the suction hole 115A on the lower surface of the suction hole 115A.
A plurality of discharge holes 117A are provided at the corners of the discharge portion 117, and a discharge seal 23 fixing hole 117B is formed at the center of the discharge portion 117.
The discharge seal 23 is provided with a discharge opening/closing portion 231 for opening and closing the discharge hole 117A, and a discharge seal coupling projection 233 that projects downward and is coupled to the discharge seal 23 fixing hole 117B is formed at the center of the discharge opening/closing portion 231.
Thereby, the discharge seal 23 opens and closes the discharge hole 117A by coupling the discharge seal coupling projection 233 to the discharge hole 117A on the upper surface of the upper body 11.
Further, since the suction hole 115A and the discharge hole 117A are formed by a plurality of small holes having a circular shape, the degree of abrasion and breakage of the seal member 20 is low compared to the conventional technique using a long hole shape, and thus the durability of the seal member 20 can be improved.
The operation of opening and closing the discharge hole 117A and the suction hole 115A by the seal member 20 will be described in more detail in the following description of the operation principle of the entire pump.
Next, a diaphragm pump assembly a to which the present invention is applied relates to a pump that sucks and discharges a fluid by causing the seal member 20 to swim,
in order to realize the play of the seal member 20, a diaphragm 30 is provided between the upper body 11 and the lower body 13.
The diaphragm 30 has a triangular shape similar to the shape of the housing 10 and is divided into three regions corresponding to the respective regions of the upper body 11.
At this time, the intrusion between the respective regions is prevented by forming the protruding protrusions 31 between the respective regions, which have the identical structure, and thus, one of the regions will be described as an example.
First, the installation hole 33 is formed in each region of the diaphragm 30, and the installation portion 35 is formed above the installation hole 33.
A floating portion 37 is formed around the installation hole 33, and the floating portion 37 is made of a soft material capable of moving up and down, so that the floating portion can move up and down by the operation of the pump.
Further, each region of the diaphragm 30 corresponds to each region of the upper body 11, and thus the placement portion 35 and the free portion 37 correspond to the suction portion 115 and the discharge portion 117 disposed in the same region of the upper body 11.
In addition, in order to realize the up-and-down movement of the diaphragm 30, particularly, the up-and-down movement of the free portion 37 provided in the diaphragm 30, the diaphragm pump assembly a to which the present invention is applied is further provided with a triangular frame 40.
Specifically, the triangular frame 40 is inserted into the insertion portion 131 of the lower body 13, and includes a circular main body 41 and three pushing portions 43 that are provided on the upper portion of the main body 41 and have a triangular shape.
At this time, the pushing portions 43 are inserted into the insertion holes 131A of the lower body 13, respectively, and are closely attached to the floating portions 37 of the respective regions of the diaphragm 30.
At this time, a pressing surface 431 capable of pressing the floating portion 37 of the diaphragm 30 is formed in the pressing portion 43, and an insertion portion 433 is formed at the center of the pressing surface 431.
Accordingly, when the triangular frame 40 is driven by the driving part to move up and down, the pressing surface 431 of the pushing part 43 passes through the insertion hole 131A of the lower body 13 to push the floating part 37 of the diaphragm 30 to move up and down, and thus the floating part 37 of the diaphragm 30 is naturally moved down by the pressure of the fluid when the triangular frame 40 moves down.
Meanwhile, the direction of the pressure inside the pipe 111 is changed by the lifting and lowering of the floating portion 37 of the diaphragm 30 to move the sealing member 20, and upper partitions 39 are further provided in respective upper regions of the diaphragm 30 to more effectively adjust the pressure direction.
The upper partition 39 will be described in more detail below. The upper separator 39 is provided in the installation portion 35 of each region of the diaphragm 30, and includes a flat pressurizing portion 391 and a screw coupling portion 393 formed to protrude from a lower portion of the pressurizing portion 391 and inserted into the installation hole 33 of the diaphragm 30.
More specifically, the upper diaphragm 39 is disposed above the diaphragm 30 such that the pressurizing portion 391 is located at the position of the mounting portion 35, and the upper diaphragm 39 is also raised together with the floating portion 37 when the floating portion 37 is raised, and the pressure inside the sealed pipe passage 111 is made to be in the upper direction when the pressurizing portion 391 of the upper diaphragm 39 is raised, and the upper diaphragm 39 is also lowered together with the floating portion 37 when the floating portion 37 is lowered, and the pressure inside the pipe passage 111 is made to be in the lower direction by this, and the suction port 115A and the discharge port 117A can be opened and closed while floating the suction seal 21 or the discharge seal 23 by the change in the pressure direction as described above. The operation described above will be described in more detail in the process described with reference to fig. 3.
Further, the screw coupling portion 393 of the upper partition plate 39 is sequentially passed through the installation hole 33 of the diaphragm 30 and the insertion hole 131A, and coupled to the insertion portion 433 provided in the push portion 43 of the triangular frame 40,
a tapping screw 45 is provided at a lower portion of the triangular frame 40, and the tapping screw 45 penetrates through the insertion portion 433 and is coupled to a screw coupling hole 393A provided in a screw coupling portion 393 of the upper partition plate 39, thereby fixing the upper partition plate 39, the diaphragm 30, the lower body 13, and the triangular frame 40.
As a result, the floating portion 37 of the diaphragm 30 and the upper diaphragm 39 move up and down in conjunction with the up and down movement of the triangular frame 40, and the pressure direction in the pipe 111 is changed, thereby sucking and discharging the fluid to complete the pump operation.
Further, a bearing 47 and a bearing screw 471 for fixing the bearing 47 are further provided on the lower inner side of the frame 40, and the triangular frame 40 is driven by a driving unit (not shown) to smoothly perform the up-and-down movement.
Further, if the screw coupling portion 393 of the upper diaphragm 39, the installation hole 33 of the diaphragm 30, and the insertion portion 433 of the triangular frame 40 are formed in a circular shape when the upper diaphragm 39 is lifted, there is a possibility that the upper diaphragm 39 may be idle or the pressurizing force may not be smoothly transmitted due to shaking when lifted.
Therefore, in the diaphragm pump assembly a to which the present invention is applied, it is preferable that the screw coupling portion 393 has a non-circular shape of D-cut provided with the linear portion 393B, and the installation hole 33 and the insertion portion 433 for inserting the screw coupling portion 393 have the same non-circular shape of D-cut as the screw coupling portion 393, so that the idling of the upper diaphragm 39 is prevented and the pressure inside the pipe passage 111 can be accurately transmitted.
Fig. 3 is an embodiment of a diaphragm pump assembly a to which the present invention is applied, and as shown in fig. 3a, when the triangular frame 40 is lowered, the floating portion 37 of the diaphragm 30 is also lowered together, and at this time, the upper diaphragm 39 is lowered so that the pressurizing force in the pipe passage 111 at the upper portion of the upper diaphragm 39 is directed downward. The suction opening/closing portion 211 of the suction seal 21 provided at the lower portion of the upper body 11 is sucked by the pressure and lowered by the pressure, so that the suction hole 115A is opened and the fluid flows into the pipe 111.
The fluid flowing in through the above process needs to be discharged to the upper part of the upper body 11 through the discharge hole 117A, and at this time, as shown in fig. 3B, when the triangular frame 40 is lifted, the free portion 37 of the diaphragm 30 is also lifted together, and at this time, the pressure inside the pipe 111 is changed to the upper direction by the lifting of the upper diaphragm 39. The suction opening/closing portion 211 is lifted up to close the suction hole 115A by the pressure changed as described above, and on the contrary, the discharge opening/closing portion 231 of the discharge seal 23 coupled to the upper surface of the upper body 11 is lifted up to open the discharge hole 117A, so that the fluid can be discharged through the discharge hole 117A.
By repeating the above-described operations, the diaphragm 30 pump assembly to which the present invention is applied starts to operate, and by adopting the circular shape in the suction hole 115A and the discharge hole 117A as described above, even in the case of repeatedly using the pump, it is possible to reduce the wear of the seal member 20 and improve the durability thereof, compared to the conventional art using a long hole shape.
While the present invention has been described with reference to the drawings, a diaphragm pump having a specific shape, structure and configuration will be described, but various modifications, changes and substitutions can be made by persons skilled in the art, and the modifications, changes and substitutions are within the scope of the present invention.
Claims (1)
1. A diaphragm pump assembly, comprising:
a housing (10) composed of an upper body (11) provided with a suction part (115) for sucking fluid, a discharge part (117) for discharging the sucked fluid, and a pipeline (111) for moving the fluid by connecting the suction part (115) and the discharge part (117), and a lower body (13) coupled to the lower part of the upper body (11) and formed with a plurality of insertion holes (131A);
a sealing member (20) which is composed of a suction sealing member (21) for opening and closing the suction portion (115) and a discharge sealing member (23) for opening and closing the discharge portion (117);
a diaphragm (30) which is provided between the upper body (11) and the lower body (13) and sucks or discharges fluid by moving the suction seal (21) or the discharge seal (23) up and down;
a triangular frame (40) which is arranged at the lower part of the shell (10) and guides the ascending and descending movement of the diaphragm (30);
wherein,
a suction hole (115A) and a discharge hole (117A) are provided in the suction part (115) and the discharge part (117), respectively, the suction hole (115A) and the discharge hole (117A) are provided in a plurality of circular shapes,
three pipelines composed of the 1 st to 3 rd regions which can be moved by the fluid and a partition wall (113) which prevents the fluid from invading into the adjacent pipelines are arranged in the upper main body (11),
the above-mentioned each pipeline is equipped with the suction part (115) and the discharge part (117), the above-mentioned three suction parts (115) and discharge parts (117) are equipped with the suction seal (21) and the discharge seal (23) respectively, thus form three suction seals (21) and discharge seals (23) respectively,
an upper partition plate (39) is provided above the diaphragm (30), and the discharge hole and the suction hole are opened and closed by converting the direction of the pressurizing force and pulling or pushing the discharge seal (23) or the suction seal (21) by the lifting and lowering of the diaphragm (30),
the diaphragm (30) is divided into three regions corresponding to the 1 st to 3 rd regions of the upper body (11), a protruding boss (31) is provided between the regions to allow the regions to function independently, a seating hole (33) is formed in each region of the diaphragm, a seating portion (35) is formed at the upper portion of the seating hole (33), a floating portion (37) made of a soft material capable of lifting is provided around the seating hole (33),
the upper partition plate (39) includes a planar pressing part (391) and a screw coupling part (393) which is provided below the pressing part (391) and is coupled to a tapping screw (45) by being inserted into the installation hole (33),
the triangular frame (40) comprises a main body part (41) and a pushing part (43) which is arranged on the main body part (41) and is inserted into an insertion hole (131A) of a lower main body part (13), wherein when the triangular frame (40) is lifted, the pushing part (43) pushes the floating part (37) and lifts the upper partition plate (39),
the mounting hole (33) of the diaphragm (30) and the screw coupling portion (393) of the upper partition plate (39) are D-cut and non-circular.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2015-0096941 | 2015-07-08 | ||
| KR1020150096941A KR101607571B1 (en) | 2015-07-08 | 2015-07-08 | Diaphragm pump assembly |
| PCT/KR2016/005450 WO2017007128A1 (en) | 2015-07-08 | 2016-05-23 | Diaphragm pump assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107750307A CN107750307A (en) | 2018-03-02 |
| CN107750307B true CN107750307B (en) | 2019-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680034710.3A Active CN107750307B (en) | 2015-07-08 | 2016-05-23 | Diaphragm pump assembly |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR101607571B1 (en) |
| CN (1) | CN107750307B (en) |
| WO (1) | WO2017007128A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102648786B1 (en) | 2021-12-02 | 2024-03-15 | 송준복 | Diaphragm pump with operational stability |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1151481A (en) * | 1995-05-23 | 1997-06-11 | 阿夸特克水力系统公司 | Wobble plate pump |
| CN101526081A (en) * | 2008-03-07 | 2009-09-09 | 晶塑实业有限公司 | Leak-proof structure for pressurizing cover of pressurizing pump of water purifying system |
| CN201739140U (en) * | 2010-06-10 | 2011-02-09 | 卢连苗 | Diaphragm chamber structure of diaphragm pump |
| CN203770097U (en) * | 2014-01-16 | 2014-08-13 | 蔡应麟 | Shock absorption structure of membrane booster pump |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100193344B1 (en) * | 1996-08-08 | 1999-06-15 | 엄기화 | Diaphragm pump |
| JP2007009837A (en) * | 2005-07-01 | 2007-01-18 | Enomoto Micro Pump Seisakusho:Kk | Diaphragm pump |
| JP5090822B2 (en) * | 2007-08-10 | 2012-12-05 | 多田プラスチック工業株式会社 | Diaphragm pump for fluid |
| JP5052995B2 (en) * | 2007-08-21 | 2012-10-17 | アルバック機工株式会社 | Diaphragm pump |
| KR100807840B1 (en) * | 2007-09-07 | 2008-02-27 | (주)씨에스이 | Diaphragm assembly for pump and eccentric bushing retainer for same |
| JP5302176B2 (en) * | 2009-12-16 | 2013-10-02 | 多田プラスチック工業株式会社 | Diaphragm pump for fluid |
| CN201851317U (en) * | 2010-11-11 | 2011-06-01 | 宁波强生电机有限公司 | Diaphragm chamber structure of diaphragm pump |
| GB2504774A (en) * | 2012-08-10 | 2014-02-12 | Munster Simms Eng Ltd | Diaphragm pump with integral motor housing and rear pump housing |
| KR101332052B1 (en) * | 2013-08-05 | 2013-11-22 | (주)스킨렉스 | Pulsating pump with diaphragm |
-
2015
- 2015-07-08 KR KR1020150096941A patent/KR101607571B1/en active Active
-
2016
- 2016-05-23 CN CN201680034710.3A patent/CN107750307B/en active Active
- 2016-05-23 WO PCT/KR2016/005450 patent/WO2017007128A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1151481A (en) * | 1995-05-23 | 1997-06-11 | 阿夸特克水力系统公司 | Wobble plate pump |
| CN101526081A (en) * | 2008-03-07 | 2009-09-09 | 晶塑实业有限公司 | Leak-proof structure for pressurizing cover of pressurizing pump of water purifying system |
| CN201739140U (en) * | 2010-06-10 | 2011-02-09 | 卢连苗 | Diaphragm chamber structure of diaphragm pump |
| CN203770097U (en) * | 2014-01-16 | 2014-08-13 | 蔡应麟 | Shock absorption structure of membrane booster pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107750307A (en) | 2018-03-02 |
| KR101607571B1 (en) | 2016-03-30 |
| WO2017007128A1 (en) | 2017-01-12 |
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