CN118564449B - Valve seat structure of diaphragm pump and diaphragm pump - Google Patents
Valve seat structure of diaphragm pump and diaphragm pump Download PDFInfo
- Publication number
- CN118564449B CN118564449B CN202411052759.4A CN202411052759A CN118564449B CN 118564449 B CN118564449 B CN 118564449B CN 202411052759 A CN202411052759 A CN 202411052759A CN 118564449 B CN118564449 B CN 118564449B
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- water inlet
- seat
- water outlet
- hole
- inlet valve
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 286
- 230000000903 blocking effect Effects 0.000 claims description 20
- 238000007789 sealing Methods 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 abstract description 30
- 230000006835 compression Effects 0.000 abstract description 10
- 238000007906 compression Methods 0.000 abstract description 10
- 239000000243 solution Substances 0.000 description 6
- 239000012528 membrane Substances 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 210000004907 gland Anatomy 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
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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
- 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
- F04B53/102—Disc valves
- F04B53/1032—Spring-actuated disc valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/04—Pumps having electric drive
-
- 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
- F04B53/1087—Valve seats
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
本发明公开了隔膜泵的阀座结构及隔膜泵，阀座具有进水座，进水座上安装有进水阀；进水座上设有安装孔，安装孔的一侧设有进水孔；进水阀包括相连的进水阀片和进水阀杆，进水阀杆安装于安装孔，进水阀片用于活动启闭进水孔；进水阀片位于进水座的正面，进水座的背面还安装有导向座，该导向座可往复滑动地安装于安装孔内；进水阀杆一端与进水阀片连接固定，另一端穿置并固定于安装孔内导向座的中间连接孔；导向座远离进水阀片的一端伸出安装孔，并且具有径向凸出的限位部；导向座上套设有压簧，压簧两端分别抵于限位部和进水座背面的安装孔边缘。通过设置滑动的进水阀杆，成本低，使用寿命高，可以解决黏稠液体难以抽吸的问题。
The invention discloses a valve seat structure of a diaphragm pump and a diaphragm pump, wherein the valve seat has a water inlet seat, on which a water inlet valve is installed; the water inlet seat is provided with a mounting hole, and one side of the mounting hole is provided with a water inlet hole; the water inlet valve comprises a connected water inlet valve plate and a water inlet valve stem, the water inlet valve stem is installed in the mounting hole, and the water inlet valve plate is used to movably open and close the water inlet hole; the water inlet valve plate is located on the front of the water inlet seat, and a guide seat is also installed on the back of the water inlet seat, and the guide seat can be reciprocatingly slidably installed in the mounting hole; one end of the water inlet valve stem is connected and fixed to the water inlet valve plate, and the other end is inserted and fixed to the middle connecting hole of the guide seat in the mounting hole; one end of the guide seat away from the water inlet valve plate extends out of the mounting hole and has a radially protruding limit portion; a compression spring is sleeved on the guide seat, and the two ends of the compression spring are respectively against the limit portion and the edge of the mounting hole on the back of the water inlet seat. By arranging a sliding water inlet valve stem, the cost is low and the service life is long, and the problem of viscous liquid being difficult to suck can be solved.
Description
Technical Field
The invention relates to the technical field of pumps, in particular to a valve seat structure of a diaphragm pump and the diaphragm pump.
Background
The diaphragm pump is a novel conveying machine and generally comprises a pump head, a pump seat, a valve seat, a diaphragm, a swinging bracket, a motor and the like, and can convey common liquid or various corrosive liquids, liquid with particles, high-viscosity, volatile, inflammable, extremely toxic liquid and the like; at present, the development of agricultural automation is rapid, and people prefer to adopt a diaphragm pump to realize the agricultural irrigation automation. Because the suction is insufficient when the diaphragm pump on the market is used for pumping the relatively viscous liquid fertilizer, the diaphragm pump with large flow and pressure is required to pump the viscous liquid.
The water inlet valve of the existing diaphragm pump generally adopts a fixed structure, and mainly causes the deformation of the bowl-shaped water inlet valve plate of the fixed water inlet valve to open the water inlet hole through the negative pressure generated by the movement of the diaphragm in the pump body, but the suction force is insufficient when the diaphragm pump pumps the viscous liquid due to the fact that the viscous liquid has larger adsorption force to the bowl-shaped water inlet valve plate.
The common solution is that the power of a motor is increased to increase the flow rate and the suction pressure, so that the diaphragm pump has good trafficability; however, the motor has high rotating speed, the necessary current is high, the motor heats up after the current is high, the service life of the motor is low, the service life of the diaphragm pump is reduced, frequent replacement and maintenance are needed, and the cost is increased.
The prior diaphragm pump and a pressure spring type valve of the diaphragm pump are disclosed in the patent publication No. CN203614385U, and the scheme is that the piston is provided with a thicker rubber sealing piece for the requirement of wear resistance, and a compression spring is sleeved between a piston guide rod and a mounting hole for preventing the rubber sealing piece from being incapable of sealing with a valve cavity; in this scheme, gland and piston guide bar threaded connection are as an organic whole, therefore this piston guide bar need be hard material just can guarantee threaded connection, nevertheless the long-term reciprocating motion of piston still makes the screw thread between gland and the piston guide bar separate each other easily, leads to this diaphragm pump life to be shorter. In addition, because the piston guide rod is made of hard materials and the piston is made of soft materials, the piston in the scheme adopts a structure of coating one end of the piston guide rod by injection molding, so that the overall thickness of the piston is larger; therefore, when the water inlet hole is opened, the edge of the piston cannot be deformed to open the water inlet hole, and the water inlet hole can be opened only by driving the piston guide rod to slide for a larger stroke, so that the current of the motor is required to be increased, the power of the motor is increased, and the service life of the motor is shortened; in summary, the diaphragm pump of this solution is not suitable for pumping viscous liquids.
In view of the above, the present invention provides a new valve seat structure of a diaphragm pump and a diaphragm pump, so as to solve the above-mentioned problems and the drawbacks of the conventional structure.
Disclosure of Invention
The invention aims to provide a valve seat structure of a diaphragm pump and the diaphragm pump, which are convenient for pumping viscous liquid and have the advantages of long service life and low cost.
In order to achieve the above object, the solution of the present invention is:
The valve seat structure of the diaphragm pump is provided with a water inlet seat, and a water inlet valve is arranged on the water inlet seat;
The water inlet seat is provided with a mounting hole, and one side of the mounting hole is provided with a water inlet hole; the water inlet valve comprises a water inlet valve plate and a water inlet valve rod which are connected, the water inlet valve rod is arranged in the mounting hole, and the water inlet valve plate is of a bowl-shaped structure and is used for movably opening and closing the water inlet hole;
The water inlet valve plate is positioned on the front surface of the water inlet seat, the back surface of the water inlet seat is also provided with a guide seat, and the guide seat can be installed in the installation hole in a reciprocating sliding manner; one end of the water inlet valve rod is fixedly connected with the water inlet valve plate, and the other end of the water inlet valve rod penetrates through and is fixed in the middle connecting hole of the guide seat in the mounting hole;
one end of the guide seat, which is far away from the water inlet valve plate, extends out of the mounting hole and is provided with a radially protruding limiting part;
the guide seat is sleeved with a pressure spring, and two ends of the pressure spring respectively prop against the limit part and the edge of the mounting hole on the back surface of the water inlet seat.
Furthermore, the outer wall of the guide seat is in clearance fit with the inner wall of the mounting hole; and a blocking ring is arranged between the pressure spring and the edge of the mounting hole, the blocking ring is tightly pressed by the pressure spring and is tightly attached to the edge of the mounting hole, and the edge of the inner ring of the blocking ring is elastically matched with the outer wall of the guide seat.
Further, the edge of the mounting hole is protruded with an annular mounting convex ring, the blocking ring is concavely provided with an annular groove, and the annular groove is embedded with the mounting convex ring.
Further, the middle connecting hole of the guide seat penetrates through two ends of the guide seat, and the water inlet valve rod penetrates through the middle connecting hole; the water inlet valve rod is provided with an annular clamping groove, the middle connecting hole of the guide seat is provided with an annular clamping block, and the annular clamping block is clamped in the annular clamping groove.
Further, the middle part of the water inlet seat is provided with a plurality of mounting holes, and the water inlet holes are distributed around the mounting holes; the middle part of the valve seat is provided with a water outlet seat, and the valve seat is arranged at the periphery of the water outlet seat; the water outlet seat is provided with a water outlet hole, and the water outlet seat is provided with a water outlet valve for movably opening and closing the water outlet hole.
Further, the front surface of the water inlet seat, which is attached to the water inlet valve plate, is an arc-shaped concave surface, and the water inlet valve plate is in a shape of a inverted bowl plate so as to be adapted to the arc-shaped concave surface.
The invention also provides a diaphragm pump which comprises a pump head, a pump seat, a swinging bracket, a diaphragm, a motor and the valve seat structure; the pump head, the pump seat and the motor are connected in sequence; a motor is arranged below the pump seat, a power output end of the motor penetrates through the pump seat and is provided with the swing bracket, and a valve seat is arranged between the pump head and the pump seat at intervals and is arranged above the swing bracket; the diaphragm is positioned between the valve seat and the swing bracket, a water inlet cavity and a water outlet cavity are formed between the pump head and the valve seat, and the pump head is provided with a water inlet communicated with the water inlet cavity and a water outlet communicated with the water outlet cavity.
Further, the middle part of the valve seat is provided with a circular water outlet area, and the water outlet area is surrounded by an annular wall protruding out of the top of the valve seat; five water outlet seats which are circumferentially and equidistantly distributed are arranged in the water outlet area; the periphery of the water outlet area is provided with five water inlet seats which are circumferentially and equidistantly distributed, and each water inlet seat is radially opposite to each water outlet seat respectively; the valve seat is connected with the pump head, the water outlet cavity is formed between the circular water outlet area and the pump head, and the water inlet cavity is formed between the circular water outlet area and the pump head.
Furthermore, a pressure release channel and a pressure plugging cavity are also arranged in the pump head, one end of the pressure release channel is communicated with the water inlet, the other end of the pressure release channel is provided with a through hole, the through hole is communicated with the pressure plugging cavity, and the pressure plugging cavity is provided with a pressure hole at one side of the through hole and is communicated with the water outlet; the pressure plugging cavity is internally provided with an elastic diaphragm and a diaphragm spring, the elastic diaphragm is propped against the diaphragm spring, and the through hole and the pressure hole are synchronously and movably plugged.
Further, the water inlet and the water outlet are respectively arranged at two sides of the top of the pump head, the pressure relief channel is transversely arranged between the water inlet and the water outlet, and the through hole is arranged at the top of the pressure relief channel; the pressure plugging cavity is concavely arranged on the top surface of the pump head, the bottom of the pressure plugging cavity is vertically aligned to the through hole and the pressure hole, the top of the pressure plugging cavity is locked and sealed through the mounting plate, the diaphragm spring is mounted in the pressure plugging cavity, and two ends of the diaphragm spring are respectively abutted to the mounting plate and the elastic diaphragm.
Further, the pump head, the pump seat and the motor are locked and fixed into a whole through a plurality of connecting screws which are circumferentially distributed at intervals.
Further, a one-way valve assembly is arranged on the water outlet channel at the inner side of the water outlet; the periphery wall of the one-way valve assembly is provided with an annular sealing ring, and the annular sealing ring is in sealing fit with the water outlet channel; the inner end of the one-way valve assembly, which is far away from the water outlet, is also provided with a plurality of elastic hooks which are radially outwards protruded, and the inner side of the water outlet channel is provided with a mounting clamping groove which is radially concavely arranged; the one-way valve component is installed inwards from the water outlet and is clamped in the installation clamping groove at the inner side of the water outlet channel by the elastic clamping hook.
After the technical scheme is adopted, according to the diaphragm pump and valve seat structure, through improving the water inlet valve rod of the existing fixed structure into the water inlet valve rod which is arranged in a sliding mode, the problem that the water inlet valve plate is difficult to open on the suction of viscous liquid can be solved, and meanwhile, the guide seat and the water inlet valve can be reset through the pressure spring. And the motor current and the like do not need to be increased, the service life of the motor is shortened, the service life of a product is prolonged, and high-flow and high-pressure viscous liquid can be extracted.
Drawings
FIG. 1 is a perspective view of a diaphragm pump according to an embodiment of the present invention;
FIG. 2 is an exploded view of a diaphragm pump according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a diaphragm pump according to an embodiment of the present invention;
FIG. 4 is an exploded view of a valve seat according to an embodiment of the present invention;
FIG. 5 is a schematic view of a fill valve in accordance with an embodiment of the present invention;
FIG. 6 is a cross-sectional view of a valve seat according to an embodiment of the present invention;
fig. 7 is a cross-sectional view of a pump head according to an embodiment of the present invention.
Description of the reference numerals: pump head 1, pressure blocking chamber 11, pressure hole 111, elastic diaphragm 121, diaphragm spring 122, mounting plate 13, water outlet channel 14, mounting groove 141, pump seat 2, swing bracket 3, diaphragm 4, motor 5, valve seat 6, water outlet seat 61, water outlet hole 611, water inlet seat 62, water inlet hole 621, mounting hole 622, mounting boss 6221, arc concave 623, water outlet valve 63, water inlet valve 64, water inlet valve plate 641, water inlet valve rod 642, annular groove 6421, water outlet area 65, annular wall 66, guide seat 67, intermediate connection hole 671, annular clamp 6711, limit 672, pressure spring 68, blocking ring 69, inner ring edge 691, annular groove 692, water inlet chamber 7, water inlet 71, water outlet chamber 8, water outlet 81, pressure relief channel 9, conduction hole 91, check valve assembly 10, annular seal 101, elastic clamp 102, connection screw 20.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
As shown in fig. 1 to 3, the diaphragm pump of the present invention includes a pump head 1, a pump seat 2, a swing bracket 3, a diaphragm 4, a motor 5, and a valve seat 6.
The pump head 1, the pump seat 2 and the motor 5 are connected in sequence; a motor 5 is arranged below the pump seat 2, the power output end of the motor 5 penetrates through the pump seat 2 and is provided with the swing bracket 3, and a valve seat 6 is arranged between the pump head 1 and the pump seat 2 at intervals and is arranged above the swing bracket 3; the diaphragm 4 is positioned between the valve seat 6 and the swinging bracket 3, a water inlet cavity 7 and a water outlet cavity 8 are formed between the pump head 1 and the valve seat 6, and the pump head 1 is provided with a water inlet 71 communicated with the water inlet cavity 7 and a water outlet 81 communicated with the water outlet cavity 8.
The middle part of the valve seat 6 in the embodiment is provided with a circular water outlet area 65, and the water outlet area 65 is surrounded by an annular wall 66 protruding from the top of the valve seat 6; five water outlet seats 61 which are circumferentially and equidistantly distributed are arranged in the water outlet area 65, and water outlet valves 63 are arranged on the water outlet seats 61; five water inlet seats 62 which are circumferentially and equidistantly distributed are arranged at the periphery of the water outlet area 65, the water inlet seats 62 are respectively and radially opposite to the water outlet seats 61, and water inlet valves 64 are arranged on the water inlet seats 62; the valve seat 6 is connected and matched with the pump head 1, the water outlet cavity 8 is formed between the circular water outlet area 65 and the pump head 1, each water outlet seat 61 is positioned in the water outlet cavity 8, the water inlet cavity 7 is formed between the outside of the circular water outlet area 65 and the pump head 1, and each water inlet seat 62 is positioned in the water inlet cavity 7.
In this embodiment, the pump head 1, the pump seat 2 and the motor 5 are locked and fixed into a whole by a plurality of connecting screws 20 distributed at intervals in the circumferential direction.
Thereby, the liquid is taken over at the water inlet 71 and put into the liquid, the motor 5 is electrified, the motor 5 rotates to drive the swinging bracket 3 to rotate, so that the diaphragm 4 swings up and down, the liquid is pumped up from the water inlet 71, is discharged from the water outlet valve 63 after passing through the water inlet valve 64, and finally flows out from the water outlet 81.
Based on the problem that the existing viscous liquid is difficult to suck, the structure of the valve seat 6 is improved, and the current and the power of the motor 5 are not required to be increased.
As shown in fig. 4 to 6, in the valve seat 6 structure of the diaphragm pump of the present invention, a mounting hole 622 is provided on the water inlet seat 62 of the valve seat 6, and a water inlet hole 621 is provided on one side of the mounting hole 622; the water inlet valve 64 comprises a water inlet valve block 641 and a water inlet valve rod 642 which are connected, the water inlet valve rod 642 is arranged in the mounting hole 622, and the water inlet valve block 641 is of a bowl-shaped structure and is used for movably opening and closing the water inlet hole 621.
The water inlet valve plate 641 is positioned on the front surface of the water inlet seat 62, a guide seat 67 is also arranged on the back surface of the water inlet seat 62, and the guide seat 67 is arranged in the mounting hole 622 in a reciprocating sliding manner; one end of the water inlet valve rod 642 is fixedly connected with the water inlet valve plate 641, and the other end of the water inlet valve rod 642 is penetrated and fixed in the middle connecting hole 671 of the guide seat 67 in the mounting hole 622; the inlet valve 64 is reciprocally slidable in the mounting hole 622 along with the guide seat 67.
One end of the guide seat 67 far away from the water inlet valve plate 641 extends out of the mounting hole 622 and is provided with a radially protruding limit part 672; the guide seat 67 is sleeved with a compression spring 68, and two ends of the compression spring 68 respectively prop against the limit part 672 and the edge of the mounting hole 622 on the back surface of the water inlet seat 62. The pressure spring 68 is arranged to push the water inlet valve 64 towards the back direction of the water inlet seat 62, so that the water inlet valve plate 641 of the water inlet valve 64 is tightly abutted against the water inlet hole 621 on the front surface of the water inlet seat 62, and the water inlet hole 621 is blocked and closed.
Thereby, the pressure spring 68 and the slidable guide seat 67 are arranged, the existing water inlet valve rod 642 clamped with the water inlet seat 62 is changed into sliding fit with the pressure spring 68 in a propping way between the water inlet seat 62, so that the water inlet hole 621 can be opened more conveniently when viscous liquid is pumped; specifically, when the water inlet cavity 7 (no pressure cavity) is filled with viscous liquid, the conventional water inlet valve plate is fixed and is round, so that the generated stress is overlarge, and the conventional water inlet valve plate is adsorbed by the viscous liquid under the state of no pressure compression, so that the diaphragm pump always runs idle; the water inlet valve rod clamped with the water inlet seat is arranged to be in a structure in sliding fit with the mounting hole 622, so that when viscous liquid is extracted, the water inlet valve plate 641 can integrally slide towards a direction away from the water inlet 71, meanwhile, the water inlet valve plate 641 can integrally deform to open the water inlet hole 621, so that viscous liquid can be extracted from the water inlet valve 64 through the water inlet hole 621 more easily, and then is discharged from the water outlet valve 63 through the water outlet cavity 8 and the water outlet 81. Thus solving the problem that the viscous liquid is difficult to suck. At the same time, the guide seat 67 and the water inlet valve 64 can be reset through the pressure spring 68.
As shown in fig. 6, in order to improve the convenience of sliding the water inlet valve 64, in this embodiment, the outer wall of the guide seat 67 is in clearance fit with the inner wall of the mounting hole 622; a blocking ring 69 is arranged between the compression spring 68 and the edge of the mounting hole 622, so that no small particle impurity flows in the gap between the outer wall of the guide seat 67 and the inner wall of the mounting hole 622, the blocking condition is prevented, and the normal operation of the water inlet valve 64 is prevented from being influenced; specifically, the blocking ring 69 is tightly pressed by the compression spring 68 to be tightly attached to the edge of the mounting hole 622, and the inner ring edge 691 of the blocking ring 69 is elastically matched with the outer wall of the guide seat 67, so that the inner ring edge 691 of the blocking ring 69 can swing along with the up-and-down sliding of the guide seat 67, part of impurity-free liquid can enter a gap in the swinging process of the inner ring edge 691, the gap between the guide seat 67 and the mounting hole 622 can be lubricated, friction is reduced, and heat generated by friction can be taken away.
As shown in fig. 6, in this embodiment, the edge of the mounting hole 622 further protrudes with an annular mounting convex ring 6221, and the blocking ring 69 is concavely provided with an annular groove 692, and the annular groove 692 is engaged with the mounting convex ring 6221. The blocking ring 69 is conveniently installed, and meanwhile, the blocking ring 69 is accurately positioned and embedded in the installation convex ring 6221 by being matched with the compression of the compression spring 68, so that the blocking ring 69 is prevented from shifting in the sliding process of the guide seat 67.
As shown in fig. 6, the middle connecting hole 671 of the guide seat 67 penetrates through both ends of the guide seat 67, and the water inlet valve rod 642 passes through the middle connecting hole 671; the water inlet valve rod 642 is provided with an annular clamping groove 6421, the middle connecting hole 671 of the guide seat 67 is provided with an annular clamping block 6711, and the annular clamping block 6711 is clamped in the annular clamping groove 6421. The annular clamping block 6711 may be formed by radially protruding the inner wall of the middle connecting hole 671, and may be interference fit in the position of the annular clamping groove 6421, so that the water inlet valve stem 642 and the guide seat 67 may be prevented from slipping.
As shown in fig. 4, the middle part of the water inlet seat 62 is provided with a plurality of mounting holes 622, and the water inlet holes 621 may be distributed around the mounting holes 622; the middle part of the valve seat 6 is provided with a water outlet seat 61, and the valve seat 6 is provided with a water inlet seat 62 at the periphery of the water outlet seat 61; the water outlet seat 61 is provided with a water outlet hole 611, and the water outlet seat 61 is provided with a water outlet valve 63 for movably opening and closing the water outlet hole 611.
The front surface of the water inlet seat 62, which is attached to the water inlet valve plate 641, is an arc concave surface 623, and the water inlet valve plate 641 is in a shape of a reverse-buckled bowl plate so as to be adapted to the arc concave surface 623.
In order to avoid excessive pressure in the water outlet cavity 8 of the diaphragm pump, a pressure relief channel 9 is further arranged in the pump head 1 to protect the product.
Referring to fig. 3 and 7, the pump head 1 is further provided with a pressure release channel 9 and a pressure plugging cavity 11, one end of the pressure release channel 9 is communicated with the water inlet 71, the other end is provided with a through hole 91, the through hole 91 is communicated with the pressure plugging cavity 11, and the pressure plugging cavity 11 is provided with a pressure hole 111 at one side of the through hole 91 and is communicated with the water outlet 81; an elastic diaphragm 121 and a diaphragm spring 122 are arranged in the pressure blocking cavity 11, and the elastic diaphragm 121 is propped against the diaphragm spring 122 to synchronously and movably block the through hole 91 and the pressure hole 111. Therefore, when the pressure of the water outlet chamber 8 is too high, the elastic membrane 121 can be lifted up from the pressure hole 111, so that a part of liquid can flow from the through hole 91 to the water inlet 71 through the pressure release channel 9 for pressure release protection, because the water outlet chamber 8 is communicated with the water outlet 81.
Specifically, the water inlet 71 and the water outlet 81 are respectively arranged at two sides of the top of the pump head 1, the pressure release channel 9 is transversely arranged between the water inlet 71 and the water outlet 81, and the through hole 91 is arranged at the top of the pressure release channel 9; the top surface of the pump head 1 is concavely provided with the pressure plugging cavity 11, the bottom of the pressure plugging cavity 11 is vertically opposite to the through hole 91 and the pressure hole 111, the top of the pressure plugging cavity 11 is locked and sealed through the mounting plate 13, the diaphragm spring 122 is mounted in the pressure plugging cavity 11, and two ends of the diaphragm spring 122 are respectively propped against the mounting plate 13 and the elastic diaphragm 121. Therefore, when the pressure of the liquid flowing from the water outlet chamber 8 to the water outlet 81 is too high, the elastic membrane 121 is jacked up against the elastic force of the membrane spring 122, and the pressure release channel 9 is further communicated, so that the liquid flows back to the water inlet 71 for pressure release protection.
Meanwhile, according to the working environment, the one-way valve assembly 10 can be installed on the water outlet 81, so that the liquid of the water outlet 81 can only flow out in one way and cannot flow into the diaphragm pump reversely, and meanwhile, the pressure in the output pipeline is kept.
Specifically, the one-way valve assembly 10 may be installed on the water outlet channel 14 inside the water outlet 81; the outer peripheral wall of the one-way valve assembly 10 is provided with an annular sealing ring 101, and the annular sealing ring 101 is in sealing fit with the water outlet channel 14; the inner end of the check valve assembly 10 far away from the water outlet 81 is also provided with a plurality of elastic hooks 102 protruding outwards in the radial direction, in this embodiment, the check valve assembly is provided with 4 elastic hooks 102 which are uniformly distributed at intervals in the circumferential direction on the outer wall of the inner end of the check valve assembly 10; the inner side of the water outlet channel 14 is provided with a radial concave mounting clamping groove 141.
Therefore, the one-way valve assembly 10 is installed inwards from the water outlet 81 and is clamped in the clamping groove 141 installed on the inner side of the water outlet channel 14 by the elastic clamping hook 102. The installation is convenient and quick, and the check valve assembly 10 is fixed by the installation clamping groove 141 so that the check valve assembly cannot move in the water outlet channel 14.
In summary, according to the structure of the diaphragm pump and the valve seat 6 of the present invention, the water inlet valve rod 642 of the existing fixing structure is improved to the water inlet valve rod 642 which is slidably arranged, so that the problem that the water inlet valve plate 641 is difficult to open can be overcome in sucking viscous liquid, and the current of the motor 5 is not required to be increased, so that the service life of the motor 5 is prevented from being shortened, the service life of a product is prolonged, and the viscous liquid can be extracted at high flow rate and high pressure.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that equivalent changes and modifications can be made by those skilled in the art without departing from the principles of the present invention, which still falls within the scope of the present invention.
In the description of the embodiments of the present application, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship conventionally put in place when the application product is used, or the orientation or positional relationship conventionally understood by those skilled in the art is merely for convenience of describing the present application and simplifying the description, and is not indicative or implying that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" and "a number" means two or more, unless specifically defined otherwise.
In the description of the embodiments of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
Claims (8)
1. Valve seat structure of diaphragm pump, its characterized in that:
the valve seat is provided with a water inlet seat, and a water inlet valve is arranged on the water inlet seat;
the water inlet seat is provided with a mounting hole, and one side of the mounting hole is provided with a water inlet hole; the water inlet valve comprises a water inlet valve plate and a water inlet valve rod which are connected, the water inlet valve rod is arranged in the mounting hole, and the water inlet valve plate is of a bowl-shaped structure and is used for movably opening and closing the water inlet hole;
The water inlet valve plate is positioned on the front surface of the water inlet seat, the back surface of the water inlet seat is also provided with a guide seat, and the guide seat can be installed in the installation hole in a reciprocating sliding manner; one end of the water inlet valve rod is fixedly connected with the water inlet valve plate, and the other end of the water inlet valve rod penetrates through and is fixed in the middle connecting hole of the guide seat in the mounting hole;
one end of the guide seat, which is far away from the water inlet valve plate, extends out of the mounting hole and is provided with a radially protruding limiting part;
the guide seat is sleeved with a pressure spring, and two ends of the pressure spring respectively prop against the limit part and the edge of the mounting hole on the back surface of the water inlet seat;
The outer wall of the guide seat is in clearance fit with the inner wall of the mounting hole; a blocking ring is arranged between the pressure spring and the edge of the mounting hole, the blocking ring is tightly pressed by the pressure spring and is tightly attached to the edge of the mounting hole, and the edge of the inner ring of the blocking ring is elastically matched with the outer wall of the guide seat;
The edge of the mounting hole is protruded with an annular mounting convex ring, the blocking ring is concavely provided with an annular groove, and the annular groove is embedded with the mounting convex ring.
2. The valve seat structure of a diaphragm pump according to claim 1, wherein: the middle connecting hole of the guide seat penetrates through two ends of the guide seat, and the water inlet valve rod penetrates through the middle connecting hole; the water inlet valve rod is provided with an annular clamping groove, the middle connecting hole of the guide seat is provided with an annular clamping block, and the annular clamping block is clamped in the annular clamping groove.
3. The valve seat structure of a diaphragm pump according to claim 1, wherein: the middle part of the water inlet seat is provided with a plurality of mounting holes, and the water inlet holes are distributed around the mounting holes; the middle part of the valve seat is provided with a water outlet seat, and the valve seat is arranged at the periphery of the water outlet seat; the water outlet seat is provided with a water outlet hole, and the water outlet seat is provided with a water outlet valve for movably opening and closing the water outlet hole.
4. The valve seat structure of a diaphragm pump according to claim 1, wherein: the front surface of the water inlet seat, which is attached to the water inlet valve plate, is an arc-shaped concave surface, and the water inlet valve plate is in a shape of a inverted bowl plate so as to be matched with the arc-shaped concave surface.
5. Diaphragm pump, its characterized in that: comprising a pump head, a pump seat, a swing support, a diaphragm, a motor and a valve seat structure according to any one of claims 1-4; the pump head, the pump seat and the motor are connected in sequence; a motor is arranged below the pump seat, a power output end of the motor penetrates through the pump seat and is provided with the swing bracket, and a valve seat is arranged between the pump head and the pump seat at intervals and is arranged above the swing bracket; the diaphragm is positioned between the valve seat and the swing bracket, a water inlet cavity and a water outlet cavity are formed between the pump head and the valve seat, and the pump head is provided with a water inlet communicated with the water inlet cavity and a water outlet communicated with the water outlet cavity.
6. The diaphragm pump of claim 5 wherein: the middle part of the valve seat is provided with a circular water outlet area, and the water outlet area is surrounded by an annular wall protruding out of the top of the valve seat; five water outlet seats which are circumferentially and equidistantly distributed are arranged in the water outlet area; the periphery of the water outlet area is provided with five water inlet seats which are circumferentially and equidistantly distributed, and each water inlet seat is radially opposite to each water outlet seat respectively; the valve seat is connected with the pump head, the water outlet cavity is formed between the circular water outlet area and the pump head, and the water inlet cavity is formed between the circular water outlet area and the pump head.
7. The diaphragm pump of claim 5 wherein: the pump head is internally provided with a pressure relief channel and a pressure plugging cavity, one end of the pressure relief channel is communicated with the water inlet, the other end of the pressure relief channel is provided with a through hole, the through hole is communicated with the pressure plugging cavity, and the pressure plugging cavity is provided with a pressure hole at one side of the through hole and is communicated with the water outlet; the pressure plugging cavity is internally provided with an elastic diaphragm and a diaphragm spring, the elastic diaphragm is propped against the diaphragm spring, and the through hole and the pressure hole are synchronously and movably plugged.
8. The diaphragm pump of claim 5 wherein: a one-way valve assembly is arranged on the water outlet channel at the inner side of the water outlet; the periphery wall of the one-way valve assembly is provided with an annular sealing ring, and the annular sealing ring is in sealing fit with the water outlet channel; the inner end of the one-way valve assembly, which is far away from the water outlet, is also provided with a plurality of elastic hooks which are radially outwards protruded, and the inner side of the water outlet channel is provided with a mounting clamping groove which is radially concavely arranged; the one-way valve component is installed inwards from the water outlet and is clamped in the installation clamping groove at the inner side of the water outlet channel by the elastic clamping hook.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411052759.4A CN118564449B (en) | 2024-08-02 | 2024-08-02 | Valve seat structure of diaphragm pump and diaphragm pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411052759.4A CN118564449B (en) | 2024-08-02 | 2024-08-02 | Valve seat structure of diaphragm pump and diaphragm pump |
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| Publication Number | Publication Date |
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| CN118564449A CN118564449A (en) | 2024-08-30 |
| CN118564449B true CN118564449B (en) | 2024-11-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202411052759.4A Active CN118564449B (en) | 2024-08-02 | 2024-08-02 | Valve seat structure of diaphragm pump and diaphragm pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN119353199B (en) * | 2024-12-23 | 2025-03-21 | 福建爱的电器有限公司 | A diaphragm pump capable of sucking viscous liquids |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203614385U (en) * | 2013-12-14 | 2014-05-28 | 周如景 | Diaphragm pump and spring valve of diaphragm pump |
| CN208456825U (en) * | 2018-07-31 | 2019-02-01 | 山东博世机械有限公司 | A kind of pump body structure of more working chamber diaphragm pumps |
| CN113931833A (en) * | 2021-10-25 | 2022-01-14 | 宁波亿林节水科技股份有限公司 | Valve seat mechanism and miniature electric diaphragm pump |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201912057D0 (en) * | 2019-08-22 | 2019-10-09 | Ge Healthcare Bio Sciences Ab | A diaphragm pump |
| CN218030527U (en) * | 2022-08-01 | 2022-12-13 | 山东中聚电器有限公司 | Diaphragm pump check valve assembly and diaphragm pump |
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- 2024-08-02 CN CN202411052759.4A patent/CN118564449B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203614385U (en) * | 2013-12-14 | 2014-05-28 | 周如景 | Diaphragm pump and spring valve of diaphragm pump |
| CN208456825U (en) * | 2018-07-31 | 2019-02-01 | 山东博世机械有限公司 | A kind of pump body structure of more working chamber diaphragm pumps |
| CN113931833A (en) * | 2021-10-25 | 2022-01-14 | 宁波亿林节水科技股份有限公司 | Valve seat mechanism and miniature electric diaphragm pump |
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| CN118564449A (en) | 2024-08-30 |
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