CN107905986B - Diaphragm steady voltage pump - Google Patents
Diaphragm steady voltage pump Download PDFInfo
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- CN107905986B CN107905986B CN201711097131.6A CN201711097131A CN107905986B CN 107905986 B CN107905986 B CN 107905986B CN 201711097131 A CN201711097131 A CN 201711097131A CN 107905986 B CN107905986 B CN 107905986B
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- Prior art keywords
- pressure stabilizing
- sealing gasket
- opening
- pump
- pressure
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 116
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 92
- 238000007789 sealing Methods 0.000 claims abstract description 88
- 230000001105 regulatory effect Effects 0.000 claims abstract description 28
- 230000013011 mating Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000001965 increasing effect Effects 0.000 description 6
- 230000002349 favourable effect Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 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
- 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
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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
- F04B43/0009—Special features
- F04B43/0081—Special features systems, control, safety measures
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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
- F04B53/22—Arrangements for enabling ready assembly or disassembly
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The application relates to a diaphragm pressure stabilizing pump, comprising: the pump comprises a pump body, a water inlet chamber and a water outlet chamber; the pressure regulating device comprises a sealing gasket, and the sealing gasket is connected to the pump main body in an interference fit and sealing manner and can isolate or communicate the water inlet cavity with the water outlet cavity. The sealing gasket is in sealing connection with the pump main body in an interference fit mode, a valve body component for fixing the sealing gasket can be omitted, a plurality of screws for installing the valve body are omitted, the variety and the number of component parts of the pressure regulating device are reduced, the assembly steps of the diaphragm pressure stabilizing pump are simplified, the assembly error rate is reduced, and the assembly efficiency is improved.
Description
Technical Field
The application relates to the technical field of pump body equipment, in particular to a diaphragm pressure stabilizing pump.
Background
The diaphragm pressure stabilizing pump is widely applied in the fields of water purifying equipment and the like, the water outlet pressure P2 is larger than the water inlet pressure P1, and the water outlet pressure P2 can be regulated through a pressure regulating device arranged in the diaphragm pressure stabilizing pump. Specifically, water flow enters a water inlet cavity of the pump body from a water inlet of the diaphragm pressure stabilizing pump, the motor drives the diaphragm to reciprocate up and down, and when the diaphragm moves downwards, water can be sucked into the diaphragm pressurizing chamber through a water inlet valve at the water inlet cavity; when the diaphragm moves upwards, the diaphragm compresses water in the diaphragm pressurizing chamber to increase the water pressure, and the water is discharged into the water outlet cavity through a water outlet valve communicated with the water outlet cavity. If the water pressure in the water outlet cavity is larger than the set safety pressure value, the water pressure can arch the middle part of the sealing gasket at the pressure regulating device, so that the water inlet cavity is communicated with the water outlet cavity, the pressure of the water outlet cavity is reduced, and the purpose of stabilizing pressure is achieved.
Referring to fig. 3, the conventional diaphragm pressure stabilizing pump has at least seven or eleven assembly parts including a gasket 2', a spring seat 84, a spring 85, a spring cover 86, a pressure adjusting screw 87, a valve body 83, and a valve body mounting bolt. Wherein a spring seat 84 and a spring cover 86 are provided for positioning the spring 85 to prevent the spring 85 from tilting when assembled. In addition, in order to prevent water in the diaphragm pressure stabilizing pump from leaking outward, a valve body 83 is required to be provided in the pressure regulating device of the diaphragm pressure stabilizing pump to fix the gasket 2' to the pump housing to achieve a sealing effect. The valve body 83 is required to be fastened to the pump housing by a plurality of screws. Therefore, the pressure regulating device of the existing diaphragm pressure stabilizing pump has various component types and quantity, not only has higher component manufacturing cost, but also has complicated assembly operation steps, high assembly error rate and low assembly efficiency, and leads to the increase of the whole production cost of the diaphragm pressure stabilizing pump and low production efficiency.
Disclosure of Invention
In order to solve the problems in the prior art, the application provides a diaphragm pressure stabilizing pump, which aims to reduce the types and the number of parts used by a pressure regulating device of the diaphragm pressure stabilizing pump and improve the assembly efficiency of the pressure regulating device.
The technical scheme adopted by the application is as follows:
according to an aspect of the present application, there is provided a diaphragm pressure stabilizing pump comprising:
the pump comprises a pump body, a water inlet chamber and a water outlet chamber;
the pressure regulating device comprises a sealing gasket, and the sealing gasket is connected to the pump main body in an interference fit and sealing manner and can isolate or communicate the water inlet cavity with the water outlet cavity.
Preferably, the pump body further comprises a first pressure stabilizing opening communicated with the water inlet chamber and a second pressure stabilizing opening communicated with the water outlet chamber;
the sealing gasket is arranged at the first pressure stabilizing opening and the second pressure stabilizing opening and can seal the first pressure stabilizing opening and/or the second pressure stabilizing opening so as to isolate the water inlet chamber from the water outlet chamber; or opening the first pressure stabilizing opening and the second pressure stabilizing opening to communicate the water inlet chamber and the water outlet chamber.
Preferably, the pump body is provided with a mounting hole;
the sealing gasket is arranged in the mounting hole and comprises a first side wall capable of elastically deforming, and the first side wall is abutted to the first pressure stabilizing opening and the second pressure stabilizing opening.
Preferably, the mounting hole is a blind hole, an annular groove is formed in the bottom wall of the blind hole, and the first pressure stabilizing opening and the second pressure stabilizing opening are arranged in an area surrounded by the annular groove;
the sealing gasket is provided with a first annular bulge, and the first annular bulge protrudes towards the bottom wall and can be connected with the annular groove in an interference fit mode.
Preferably, the first annular protrusion includes an inner conical surface that is gradually widened from one end far from the annular groove to one end near to the annular groove.
Preferably, the annular recess comprises a conical inner side wall which is adapted to be connected with the inner conical surface of the first annular projection.
Preferably, an exhaust groove is provided at the inner conical surface in the axial direction of the gasket.
Preferably, a second annular protrusion is provided on the gasket along an edge of the gasket, and a protruding direction of the second annular protrusion is opposite to a protruding direction of the first annular protrusion.
Preferably, the pressure regulating device further comprises an adjusting component, wherein the adjusting component is in fit connection with the sealing gasket, and can apply adjustable pressure to the sealing gasket towards the directions of the first pressure stabilizing opening and the second pressure stabilizing opening.
Preferably, the adjusting assembly comprises a positioning piece and an elastic piece arranged between the positioning piece and the sealing gasket;
when the pump body includes the mounting hole, the setting element with the elastic component all set up in the mounting hole, the setting element can change the deformation degree of elastic component, in order to adjust the elastic component is right the pressure that the sealing pad applyed.
Preferably, the positioning piece is a screw plug, a threaded structure is arranged on the hole wall of the mounting hole, and the screw plug is connected with the mounting hole in a matched manner through the threaded structure.
Preferably, the screw plug comprises a connecting wall surface for connecting the elastic piece, and a mounting groove is formed at the connecting wall surface;
the elastic piece is a spring, one end of the spring is fixed in the mounting groove in an abutting mode, and the other end of the spring is fixed on the sealing gasket in an abutting mode.
Preferably, the sealing gasket comprises a second side wall for connecting the spring, a boss is arranged on the second side wall, and the other end of the spring is sleeved on the boss.
Preferably, the screw plug further comprises an adjusting wall surface which is arranged opposite to the connecting wall surface, and a polygonal counter bore is formed in the adjusting wall surface.
The application has the beneficial effects that:
1. the sealing gasket is fixed on the pump main body in an interference fit mode, and is used for forming a sealing connection structure between the sealing gasket and the pump main body, so that water is prevented from leaking to the outside of the diaphragm pressure stabilizing pump, and normal operation of the diaphragm pressure stabilizing pump is ensured. Compared with the prior art, the valve body part for fixing the sealing gasket can be omitted, and a plurality of screws for installing the valve body are omitted, so that the variety and the number of component parts of the pressure regulating device are reduced, the assembly steps of the pressure regulating device are simplified, and the assembly efficiency is improved;
2. through set up the helicitic texture in the pore wall department of mounting hole, with the plug screw direct fixation on the mounting hole to and set up the boss on sealed pad, set up the mounting groove on the plug screw, directly with the spring positioning between sealed pad and the plug screw, compared with prior art, saved parts such as spring holder, spring cover, be favorable to further reducing pressure regulator's component part kind and quantity, simplify pressure regulator's assembly step, and reduce the assembly error rate, improve assembly efficiency.
Drawings
FIG. 1 is a front view of a diaphragm pressure stabilizing pump according to the present application;
FIG. 2 is a side view of a diaphragm pressure stabilizing pump according to the present application;
FIG. 3 is a partial structural cross-sectional view of a prior diaphragm pressure stabilizing pump;
FIG. 4 is an enlarged view of a partial structure at A in FIG. 3;
FIG. 5 is a partial sectional view of the diaphragm pressure stabilizing pump according to the present application;
FIG. 6 is an enlarged view of a partial structure at B in FIG. 5;
FIG. 7 is a partial structural cross-sectional view of the pump body of the present application;
FIG. 8 is a schematic cross-sectional view of a gasket according to the present application;
fig. 9 is a schematic cross-sectional view of a positioning member according to the present application.
In the figure: 1. a pump body; 11. an annular groove; 2. a sealing gasket; 21. a first annular projection; 211. an inner conical surface; 22. a second annular projection; 23. an exhaust groove; 24. a boss; 2', a sealing gasket; 3. a water inlet chamber; 31. a first voltage stabilizing opening; 4. a water outlet chamber; 41. a second voltage stabilizing opening; 5. a mounting hole; 51. a thread structure; 6. a positioning piece; 61. a mounting groove; 62. polygonal counter bore; 7. an elastic member; 81. a water inlet; 82. a water outlet; 83. a valve body; 84. a spring seat; 85. a spring; 86. a spring cover; 87. pressure regulating screw.
Detailed Description
In order to further describe the technical means and effects adopted by the present application for achieving the intended purpose, the following detailed description refers to the specific implementation, structure, characteristics and effects according to the present application application with reference to the accompanying drawings and preferred embodiments. In the following description, particular features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.
It should be noted that, in the description of the present application, terms such as "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus are not to be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application can be understood by those skilled in the art according to the specific circumstances.
Please refer to fig. 1-9. According to an aspect of the present application, there is provided a diaphragm pressure stabilizing pump comprising: the pump comprises a pump body 1, wherein the pump body 1 comprises a water inlet chamber 3 and a water outlet chamber 4, water enters the water inlet chamber 3 through a water inlet 81 of a diaphragm pressure stabilizing pump, flows into the water outlet chamber 4 after being compressed, and flows out of the water outlet chamber 4 through a water outlet 82, and the water pressure in the water outlet chamber 4 is higher relative to that of the water inlet chamber 3; the pressure regulating device is used for regulating the water outlet pressure of the diaphragm pressure stabilizing pump and comprises a sealing gasket 2, wherein the sealing gasket 2 is connected to the pump main body 1 in an interference fit and sealing manner, and can isolate or communicate the water inlet chamber 3 with the water outlet chamber 4.
According to the application, the sealing gasket 2 is fixed on the pump main body 1 in an interference fit mode, so that the effect of mounting and fixing the sealing gasket 2 on the pump main body 1 can be realized, a sealing structure can be formed at the connection position of the sealing gasket 2 and the pump main body 1 in an interference fit mode, water in the pump body is prevented from leaking to the outside of the pump body, and the normal operation of the diaphragm pressure-stabilizing pump is ensured. Compared with the prior art, the application can omit the valve body 83 for fixing the sealing gasket 2, and simultaneously omit a plurality of screws for installing the valve body 83, thereby being beneficial to reducing the types and the number of the component parts of the pressure regulating device, simplifying the assembly steps of the pressure regulating device and improving the assembly efficiency. In the use process, when the water pressure value in the water outlet chamber 4 is lower than a preset safe water pressure value, the sealing gasket 2 keeps the water outlet chamber 4 and the water inlet chamber 3 isolated, and the diaphragm pressure stabilizing pump works normally; when the water pressure value of the water outlet chamber 4 rises to or exceeds a preset safe water pressure value, the sealing gasket 2 can enable the water outlet chamber 4 to be communicated with the water inlet chamber 3 so as to reduce the water pressure in the high-pressure water outlet chamber 4, and therefore the purpose of pressure stabilization is achieved. In the process, the interference fit sealing structure formed between the sealing gasket 2 and the pump main body 1 can always keep a good sealing effect, and the diaphragm pressure-stabilizing pump is prevented from leaking.
As a preferred embodiment, the pump body 1 further comprises a first pressure stabilizing opening 31 communicating with the water inlet chamber 3, and a second pressure stabilizing opening 41 communicating with the water outlet chamber 4; the sealing gasket 2 is arranged at the first pressure stabilizing opening 31 and the second pressure stabilizing opening 41, the sealing gasket 2 can elastically deform, and when the water pressure in the water outlet chamber 4 is not more than a preset safe water pressure value, the sealing gasket can seal the first pressure stabilizing opening 31 and/or the second pressure stabilizing opening 41 so as to isolate the water inlet chamber 3 from the water outlet chamber 4, so that water in the water outlet chamber 4 cannot flow out of the water outlet chamber 4 through the second pressure stabilizing opening 41 and/or flow into the water inlet chamber 3 through the first pressure stabilizing opening 31; when the water pressure in the water outlet chamber 4 reaches a preset safe water pressure value, the sealing gasket 2 can also simultaneously open the first pressure stabilizing opening 31 and the second pressure stabilizing opening 41 so as to communicate the water inlet chamber 3 and the water outlet chamber 4, and the water in the water outlet chamber 4 can flow out through the second pressure stabilizing opening 41 and flow into the water inlet chamber 3 through the first pressure stabilizing opening 31, so that the water pressure in the water outlet chamber 4 is reduced.
As a preferred embodiment, the pump body 1 is provided with a mounting hole 5; the sealing gasket 2 is arranged in the mounting hole 5, and comprises a first side wall capable of elastically deforming, the first side wall is abutted against the first pressure stabilizing opening 31 and the second pressure stabilizing opening 41, when the water pressure value at the second pressure stabilizing opening 41 is increased to or exceeds a preset safe water pressure value, the first side wall of the sealing gasket 2 is elastically deformed under water pressure, and a gap is formed between the first side wall and the second pressure stabilizing opening 41 and the first pressure stabilizing opening 31, so that the water inlet chamber 3 and the water outlet chamber 4 are communicated. The self-deformation of the sealing gasket 2 is utilized to sense the water pressure, the water flow between the water inlet chamber 3 and the water outlet chamber 4 is controlled, the control method is simple, and the control cost is lower.
As a preferred embodiment, the mounting hole 5 is a blind hole, an annular groove 11 is disposed at a bottom wall of the blind hole, and the first voltage stabilizing opening 31 and the second voltage stabilizing opening 41 are disposed in an area surrounded by the annular groove 11; the sealing gasket 2 is provided with a first annular bulge 21, and the first annular bulge 21 protrudes towards the bottom wall and can be connected with the annular groove 11 in an interference fit manner to form an annular sealing structure. The annular seal structure encloses the first and second manostatic openings 31, 41 therein, and prevents water from leaking out from the water inlet chamber 3 or the water outlet chamber 4 even in the case where both the first and second manostatic openings 31, 41 are open. In this embodiment, as shown in fig. 5, the first side wall abutting against the first voltage stabilizing opening 31 and the second voltage stabilizing opening 41 may not only include a side wall portion in a plane in the middle of the gasket 2, but also include at least a portion of a side wall of the first annular protrusion 21 structure, so as to adapt to the specific structures of the first voltage stabilizing opening 31 and the second voltage stabilizing opening 41, and perform sealing connection between the two. In addition, the outer side wall and at least part of the inner side wall of the first annular bulge 21 can be correspondingly matched and connected with the inner wall and the outer wall of the annular groove 11, compared with the prior art, the contact area between the sealing gasket 2 and the wall of the mounting hole 5 is increased, the friction force between the sealing gasket 2 and the wall of the mounting hole 5 is increased, the reliability of the fixed connection relationship between the sealing gasket 2 and the mounting hole 5 is improved, meanwhile, the sealing area between the sealing gasket 2 and the pump main body 1 is increased, and the reliability of a sealing structure is improved.
As a preferred embodiment, the first annular protrusion 21 includes an inner conical surface 211, and the inner conical surface 211 is gradually widened from an end far from the annular groove 11 to an end near to the annular groove 11. Preferably, the annular recess 11 comprises a conical inner side wall which is adapted to be connected with the inner conical surface 211 of the first annular projection 21. As shown in fig. 5 and 6, the inner conical surface 211 on the first annular protrusion 21 and the conical inner side wall on the annular groove 11 are in contact with each other, which is favorable for further increasing the sealing contact area between the sealing gasket 2 and the annular groove 11, thereby further improving the friction force and sealing performance between the first annular protrusion 21 and the annular groove 11, ensuring that the mounting structure of the sealing gasket 2 and the formed sealing structure are more stable and reliable, and avoiding the diaphragm steady pump from leaking outwards
As a preferred embodiment, a vent groove 23 is provided at the inner conical surface 211 in the axial direction of the gasket 2. The sealed pad 2 is pressed into the mounting hole 5 through the frock, is connected with the mounting hole 5 in a matched manner, combines the air discharge groove 23 that sets up to show with fig. 5 and 6 can be at the in-process of installing sealed pad 2, in smoothly discharging the air in the annular groove 11 to the cooperation space between sealed pad 2 and the mounting hole 5 diapire, avoid the cooperation structure between first annular bulge 21 and the annular groove 11 to store up gas, cause the mounting structure of sealed pad 2 unstable, deviate from pump main part 1, perhaps sealed not good problem of effect.
As a preferred embodiment, a second annular protrusion 22 is provided on the gasket 2 along the edge of the gasket 2, and the protruding direction of the second annular protrusion 22 is opposite to the protruding direction of the first annular protrusion 21. The side wall of the second annular protrusion 22 can be contacted with the side wall of the mounting hole 5, so that the contact area between the sealing gasket 2 and the mounting hole 5 is increased, and enough friction force between the sealing gasket 2 and the mounting hole 5 can be ensured, so that the sealing gasket 2 cannot move when receiving water inlet pressure and water outlet pressure.
As a preferred embodiment, the pressure regulating device further comprises an adjusting component, wherein the adjusting component is cooperatively connected with the sealing gasket 2, and can apply adjustable pressure to the sealing gasket 2 in the directions of the first pressure stabilizing opening 31 and the second pressure stabilizing opening 41. By adjusting the pressure applied to the gasket 2, the pressure applied to the first and second regulated openings 31 and 41 by the gasket 2 can be correspondingly adjusted, thereby changing the aforementioned preset safety water pressure value and achieving the effect of adjusting the diaphragm regulated pump water pressure.
As a preferred embodiment, the adjusting assembly comprises a positioning member 6 and an elastic member 7 disposed between the positioning member 6 and the gasket 2; when the pump body 1 includes the mounting hole 5, the positioning member 6 and the elastic member 7 are both disposed in the mounting hole 5, and the positioning member 6 can change the degree of deformation of the elastic member 7 to adjust the pressure applied to the gasket 2 by the elastic member 7. Specifically, the positioning member 6 may press the elastic member 7 to different degrees by, for example, moving the position, changing the degree of deformation of the elastic member 7, thereby changing the magnitude of the elastic restoring force applied by the elastic member 7 to the gasket 2 located at one side thereof. The elastic deformation of the elastic piece 7 is utilized to adjust the pressure applied to the sealing gasket 2, which is favorable for conveniently controlling the magnitude of acting force, and compared with other types of control components, the adjusting component comprising the elastic piece 7 and the positioning piece 6 has lower manufacturing and assembling cost, simple control operation and lower energy consumption, and is favorable for reducing the cost of the adjusting process.
As a preferred embodiment, the positioning piece 6 is a screw plug, a threaded structure 51 is arranged on the hole wall of the mounting hole 5, and the screw plug is connected with the mounting hole 5 in a matched manner through the threaded structure 51, so that the screw plug is directly fixed on the mounting hole 5. The screw plug is screwed in the mounting hole 5 and can rotate relative to the mounting hole 5 to change the position of the screw plug in the mounting hole 5, so that the deformation degree of the elastic piece 7 between the sealing gasket 2 and the screw plug is changed to adjust the acting force on the sealing gasket 2 of the elastic piece 7. Preferably, the fine thread structure 51 is provided at the wall of the mounting hole 5, so that the compression length of the elastic member 7 can be more precisely adjusted, thereby improving the accuracy and fineness of the diaphragm regulated pump outlet pressure adjustment.
As a preferred embodiment, the screw plug comprises a connecting wall surface for connecting the elastic member 7, and a mounting groove 61 is arranged at the connecting wall surface; the elastic member 7 is a spring 85, one end of the spring 85 is fixed in the mounting groove 61 in an abutting manner, and the other end is fixed on the gasket 2 in an abutting manner. The mounting groove 61 can fix the spring 85, so that the screw plug and the spring 85 are in direct matching structure, and the spring 85 cannot move and fail relative to the screw plug in the mounting and using processes. Compared with the prior art, the mounting groove 61 can omit the use of the spring cover 86 parts, so that the variety and the number of the component parts of the pressure regulating device are further reduced, the material cost is reduced, the assembly complexity and the assembly error rate are reduced, and the assembly efficiency of the diaphragm pressure stabilizing pump is improved.
As a preferred embodiment, the sealing gasket 2 includes a second side wall for connecting the spring 85, a boss 24 is disposed on the second side wall, and the other end of the end portion of the spring 85 matched with the sealing gasket 2 is sleeved on the boss 24. The boss 24 plays a role in positioning the spring 85, prevents the spring 85 from moving and failing relative to the sealing gasket 2 in the installation and use processes, and is beneficial to keeping the stability and reliability of the matching structure of the spring 85 and the sealing gasket 2. Compared with the prior art, the boss 24 structure is designed on the sealing gasket 2, so that the spring seat 84 structure can be omitted, the types and the number of the required component parts in the pressure regulating device are further reduced, the production and assembly steps of the diaphragm pressure stabilizing pump are simplified, and the assembly efficiency is improved. As shown in fig. 6, the boss 24 may be disposed in an area surrounded by the second annular protrusion 22, and the end portion sleeved on the boss 24 is located in a space sandwiched between the second annular protrusion 22 and the boss 24, which is favorable for further enhancing the positioning effect of the sealing gasket 2 on the spring 85, so that the mounting structure of the spring 85 is more stable and reliable.
In a preferred embodiment, the screw plug further comprises an adjusting wall surface opposite to the connecting wall surface, and a polygonal counter bore 62 is arranged at the adjusting wall surface. The polygonal counterbore 62 is preferably a hexagonal counterbore that can be used to mate with an allen wrench for screwing the plug into the mounting hole 5 during installation or for adjusting the plug position during hydraulic adjustment using the plug.
In summary, it is easily understood by those skilled in the art that the above-mentioned advantageous ways can be freely combined and superimposed without conflict.
The above description is only a preferred embodiment of the present application, and is not intended to limit the present application in any way. Any person who is in the light of the present application can obtain other products in various forms, however, any change in shape or structure is within the scope of the present application, and all the technical solutions that are the same or similar to the present application are included.
Claims (12)
1. A diaphragm pressure stabilizing pump, comprising:
a pump body (1), the pump body (1) comprising a water inlet chamber (3) and a water outlet chamber (4);
the pressure regulating device comprises a sealing gasket (2), wherein the sealing gasket (2) is in interference fit and sealing connection with the pump main body (1) and can isolate or communicate the water inlet chamber (3) and the water outlet chamber (4);
the pump body (1) further comprises a first pressure stabilizing opening (31) communicated with the water inlet chamber (3) and a second pressure stabilizing opening (41) communicated with the water outlet chamber (4);
the sealing gasket (2) is arranged at the first pressure stabilizing opening (31) and the second pressure stabilizing opening (41) and is positioned outside the first pressure stabilizing opening (31) and the second pressure stabilizing opening (41), and can seal the first pressure stabilizing opening (31) and/or the second pressure stabilizing opening (41) so as to isolate the water inlet chamber (3) and the water outlet chamber (4); or opening the first and second pressure stabilizing openings (31, 41) to communicate the water inlet chamber (3) with the water outlet chamber (4);
the pump body (1) is provided with a mounting hole (5);
the sealing gasket (2) is arranged in the mounting hole (5) in an interference fit and sealing manner, and comprises a first side wall capable of elastically deforming, and the first side wall is abutted to the first voltage stabilizing opening (31) and the second voltage stabilizing opening (41).
2. The diaphragm pressure stabilizing pump according to claim 1, wherein the mounting hole (5) is a blind hole, an annular groove (11) is arranged at the bottom wall of the blind hole, and the first pressure stabilizing opening (31) and the second pressure stabilizing opening (41) are arranged in an area surrounded by the annular groove (11);
the sealing gasket (2) is provided with a first annular bulge (21), and the first annular bulge (21) protrudes towards the bottom wall and can be connected with the annular groove (11) in an interference fit mode.
3. The diaphragm pressure stabilizing pump according to claim 2, wherein said first annular protrusion (21) includes an inner conical surface (211), said inner conical surface (211) being gradually widening from an end remote from said annular recess (11) to an end close to said annular recess (11).
4. A diaphragm pressure stabilizing pump according to claim 3, wherein said annular recess (11) comprises a conical inner side wall which is adapted to be connected with an inner conical surface (211) of said first annular protrusion (21).
5. A diaphragm pressure stabilizing pump according to claim 3, wherein an exhaust groove (23) is provided at said inner conical surface (211) in the axial direction of said gasket (2).
6. Diaphragm pressure stabilizing pump according to any one of claims 2-5, characterized in that a second annular protrusion (22) is provided on the sealing gasket (2) along the edge of the sealing gasket (2), the protruding direction of the second annular protrusion (22) being opposite to the protruding direction of the first annular protrusion (21).
7. The diaphragm pressure regulator pump according to any one of claims 1-5, characterized in that the pressure regulating device further comprises an adjusting assembly, which is in mating connection with the sealing gasket (2), capable of applying an adjustable pressure to the sealing gasket (2) in the direction of the first pressure regulating opening (31) and the second pressure regulating opening (41).
8. The diaphragm pressure stabilizing pump according to claim 7, wherein said adjustment assembly comprises a positioning member (6), and an elastic member (7) provided between said positioning member (6) and said gasket (2);
when the pump body (1) comprises a mounting hole (5), the positioning piece (6) and the elastic piece (7) are arranged in the mounting hole (5), and the positioning piece (6) can change the deformation degree of the elastic piece (7) so as to adjust the pressure applied by the elastic piece (7) to the sealing gasket (2).
9. The diaphragm pressure stabilizing pump according to claim 8, wherein the positioning piece (6) is a screw plug, a threaded structure is arranged on the wall of the mounting hole (5), and the screw plug is connected with the mounting hole (5) in a matched manner through the threaded structure.
10. The diaphragm pressure stabilizing pump according to claim 9, wherein said screw plug comprises a connecting wall surface for connecting said elastic member (7), said connecting wall surface being provided with a mounting groove (61);
the elastic piece (7) is a spring, one end of the spring is fixed in the mounting groove (61) in an abutting mode, and the other end of the spring is fixed on the sealing gasket (2) in an abutting mode.
11. Diaphragm pressure stabilizing pump according to claim 10, characterized in that the sealing gasket (2) comprises a second side wall for connecting the spring, a boss (24) is arranged on the second side wall, and the other end of the spring is sleeved on the boss (24).
12. The diaphragm pressure stabilizing pump according to claim 10 or 11, wherein said plug screw further comprises an adjustment wall surface disposed opposite said connection wall surface, said adjustment wall surface being provided with a polygonal counterbore (62).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711097131.6A CN107905986B (en) | 2017-11-09 | 2017-11-09 | Diaphragm steady voltage pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711097131.6A CN107905986B (en) | 2017-11-09 | 2017-11-09 | Diaphragm steady voltage pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107905986A CN107905986A (en) | 2018-04-13 |
| CN107905986B true CN107905986B (en) | 2023-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711097131.6A Active CN107905986B (en) | 2017-11-09 | 2017-11-09 | Diaphragm steady voltage pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109838366B (en) * | 2019-01-25 | 2024-04-12 | 邹昌红 | Diaphragm booster pump with switch and protective adjusting structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201193604Y (en) * | 2008-04-11 | 2009-02-11 | 卢连苗 | Constant voltage regulating device for diaphragm pump |
| CN206268059U (en) * | 2016-11-30 | 2017-06-20 | 宁波强生电机有限公司 | A kind of membrane pump pressure relief and membrane pump |
| CN106931208A (en) * | 2017-04-20 | 2017-07-07 | 威迪亚（长泰）科技有限公司 | A kind of pressure reducing flow stable valve for being applied to rinse toilet lid |
| CN207621005U (en) * | 2017-11-09 | 2018-07-17 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of diaphragm stabilized pressure pump |
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- 2017-11-09 CN CN201711097131.6A patent/CN107905986B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201193604Y (en) * | 2008-04-11 | 2009-02-11 | 卢连苗 | Constant voltage regulating device for diaphragm pump |
| CN206268059U (en) * | 2016-11-30 | 2017-06-20 | 宁波强生电机有限公司 | A kind of membrane pump pressure relief and membrane pump |
| CN106931208A (en) * | 2017-04-20 | 2017-07-07 | 威迪亚（长泰）科技有限公司 | A kind of pressure reducing flow stable valve for being applied to rinse toilet lid |
| CN207621005U (en) * | 2017-11-09 | 2018-07-17 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of diaphragm stabilized pressure pump |
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| CN107905986A (en) | 2018-04-13 |
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