CN114837958B - Electromagnetic pump with self-priming structure - Google Patents

Electromagnetic pump with self-priming structure Download PDF

Info

Publication number
CN114837958B
CN114837958B CN202210474360.XA CN202210474360A CN114837958B CN 114837958 B CN114837958 B CN 114837958B CN 202210474360 A CN202210474360 A CN 202210474360A CN 114837958 B CN114837958 B CN 114837958B
Authority
CN
China
Prior art keywords
self
liquid
inclined plane
branch pipe
liquid outlet
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
Application number
CN202210474360.XA
Other languages
Chinese (zh)
Other versions
CN114837958A (en
Inventor
熊颖申
黄志勇
李平华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Cnht Ltd
Original Assignee
Shenzhen Cnht Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shenzhen Cnht Ltd filed Critical Shenzhen Cnht Ltd
Priority to CN202210474360.XA priority Critical patent/CN114837958B/en
Publication of CN114837958A publication Critical patent/CN114837958A/en
Application granted granted Critical
Publication of CN114837958B publication Critical patent/CN114837958B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D9/00—Priming; Preventing vapour lock
    • F04D9/02—Self-priming pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/0606—Canned motor pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/086—Sealings especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention provides an electromagnetic pump with a self-priming structure, which comprises a coil assembly, a pump pipe, an iron core, a reset spring, a liquid outlet control spring, a liquid inlet control spring, a liquid outlet rubber head, a liquid inlet rubber head and the self-priming structure. The two ends of the pump pipe are respectively provided with a liquid inlet hole and a liquid outlet hole, a sealing cavity is arranged between the iron core and the liquid outlet hole, and the liquid outlet rubber head and the liquid inlet rubber head are blocked at the two ends of the sealing cavity in opposite water blocking directions; the self-priming structure comprises a branch pipe and a sealing head, wherein the inside of the branch pipe is provided with a liquid guide hole penetrating along the axial direction, the liquid guide hole is communicated with a sealing cavity and an external space, and the sealing head is movably arranged in the branch pipe and is used for plugging the liquid guide hole. According to the electromagnetic pump with the self-priming structure, when the electromagnetic pump is started, air in the sealing cavity can be discharged through the self-priming structure, so that water can easily enter the sealing cavity and wet out the liquid rubber head, the adhesion force between the liquid rubber head and other parts is small, the liquid rubber head is easy to open, and the water can be pumped out easily.

Description

Electromagnetic pump with self-priming structure
Technical Field
The invention relates to the field of electromagnetic pumps, in particular to an electromagnetic pump with a self-priming structure.
Background
When the existing electromagnetic pump technology works, the one-way structure of the liquid rubber head is pushed out by the pressure intensity of the sealing cavity to discharge water. The liquid outlet rubber head of the electromagnetic pump is in a static state when the pump is not in operation, the liquid outlet rubber head can be adhered with other parts for a long time, the electromagnetic pump is generally of a one-in one-out structure, the air compression pressure generated by the internal sealing cavity of the electromagnetic pump cannot meet the requirement of normal water supply, the electromagnetic pump is not easy to enter the sealing cavity when being started to operate, the liquid outlet rubber head cannot be soaked by water, the liquid outlet rubber head is difficult to be opened by the air compression pressure compressed by the sealing cavity, and particularly, large air back pressure exists in equipment connected with one end of the liquid outlet hole, and the liquid outlet rubber head can be further compressed by the air back pressure, so that water is difficult to pump.
It is desirable to provide an electromagnetic pump with a self-priming structure to solve the above-mentioned problems.
Disclosure of Invention
The invention provides an electromagnetic pump with a self-priming structure, which solves the problem that a liquid outlet rubber head of an electromagnetic pump in the prior art is difficult to open, so that water is difficult to pump.
In order to solve the technical problems, the technical scheme of the invention is as follows: an electromagnetic pump with a self-priming structure comprises a coil assembly, a pump pipe, an iron core, a reset spring, a liquid outlet control spring, a liquid inlet control spring, a liquid outlet rubber head, a liquid inlet rubber head and the self-priming structure;
the two ends of the pump pipe are respectively provided with a liquid inlet hole and a liquid outlet hole, the iron core is arranged in the pump pipe in a sliding way, the iron core is penetrated in the axial direction, the liquid outlet rubber head is matched with the liquid outlet control spring to seal the liquid outlet holes in a unidirectional way, the liquid inlet rubber head is matched with the liquid inlet control spring to seal a port at one end of the iron core in a unidirectional way, a sealing cavity is arranged between the iron core and the liquid outlet holes, and the liquid outlet rubber head and the liquid inlet rubber head are blocked at two ends of the sealing cavity in opposite water blocking directions;
the self-priming structure comprises a branch pipe and a sealing head, wherein a liquid guide hole penetrating along the axial direction is formed in the branch pipe, the liquid guide hole is communicated with the sealing cavity and the external space, and the sealing head is movably arranged in the branch pipe and is used for blocking the liquid guide hole.
In the invention, the self-priming structure further comprises a self-priming spring and a spring seat, wherein the spring seat is connected to one end of the branch pipe far away from the pump pipe, and the self-priming spring is arranged between the sealing head and the spring seat.
In the invention, the branch pipe is in threaded connection with the pump pipe, a convex ring is arranged on the periphery of one end, far away from the pump pipe, of the branch pipe, the spring seat comprises a connecting shaft and a clamping part, a plurality of clamping parts are distributed on the periphery side of the connecting shaft, one end of the connecting shaft is sleeved in the branch pipe, and the clamping part is clamped with the convex ring.
Further, both ends of the self-priming spring are respectively sleeved with the sealing head and the connecting shaft, a communication hole for communicating the liquid guide hole and an external space is formed in the spring seat, and when the sealing head moves to a set distance in a direction close to the spring seat, the sealing head seals the communication hole.
In the present invention, one end of the seal head is provided with a conical tip portion for sealing the communication hole, an inner wall surface of the communication hole is provided with an inner conical surface corresponding to an outer peripheral surface of the tip portion, and an outer periphery of the other end of the seal head is provided with a sliding protrusion for sliding contact with an inner wall surface of the branch pipe.
The branch pipe and the sealing head are made of metal, the liquid guide hole is communicated with the liquid inlet hole, and when the sealing head seals the liquid guide hole and the liquid outlet rubber head seals the liquid outlet hole, the elastic force of the self-suction spring is larger than that of the liquid outlet control spring.
In the invention, the spring seat is in threaded connection with the branch pipe.
In the invention, the convex ring is provided with a first positioning groove and a second positioning groove which are used for positioning and connecting the clamping part, the depth directions of the first positioning groove and the second positioning groove are consistent with the axial direction of the connecting shaft, and the depths of the first positioning groove and the second positioning groove are unequal.
In the invention, a guide ring is arranged on the branch pipe, the clamping part is positioned between the guide ring and the convex ring, a first guide path is arranged on the guide ring, the first guide path comprises a first guide inclined plane and a second guide inclined plane, the inclination direction of the first guide inclined plane is opposite to that of the second guide inclined plane, the first end of the first guide inclined plane is opposite to the first positioning groove, the second end of the first guide inclined plane is opposite to the first end of the second guide inclined plane, and the second end of the second guide inclined plane is in butt joint with the second positioning groove.
In the invention, the convex ring is further provided with a guiding groove, the guiding ring is provided with a second guiding path, the second guiding path comprises a third guiding inclined plane and a fourth guiding inclined plane, the inclination direction of the third guiding inclined plane is opposite to that of the fourth guiding inclined plane, the first end of the third guiding inclined plane is opposite to the second positioning groove, the second end of the third guiding inclined plane is opposite to the first end of the fourth guiding inclined plane, and the second end of the fourth guiding inclined plane is in butt joint with the guiding groove.
In the invention, one side of the convex ring far away from the pump pipe is provided with an introduction groove for guiding the buckling part to be connected, the position of the introduction groove is opposite to the first positioning groove or the second positioning groove, and a fifth guide inclined plane is arranged in the introduction groove along the axial direction of the branch pipe.
In the invention, a threaded hole for threaded connection with the branch pipe is arranged on the pump pipe, a reaming is arranged on the periphery of the threaded hole, the branch pipe is matched with the reaming in a positioning way, and a sealing ring is arranged between the branch pipe and the reaming.
Compared with the prior art, the invention has the beneficial effects that: according to the electromagnetic pump with the self-priming structure, when the electromagnetic pump is started, air in the sealing cavity can be discharged through the self-priming structure, so that water can easily enter the sealing cavity and wet out the liquid rubber head, the adhesion force between the liquid rubber head and other parts is small, the liquid rubber head is easy to open, and the water can be pumped out easily.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments are briefly described below, and the drawings in the following description are only drawings corresponding to some embodiments of the present invention.
Fig. 1 is a schematic structural view of a first embodiment of an electromagnetic pump with self-priming structure of the present invention.
Fig. 2 is a schematic structural view of a self-priming structure of the electromagnetic pump with the self-priming structure of the first embodiment.
Fig. 3 is a schematic diagram of a pump tube with a self-priming structure and a disassembled structure of the self-priming structure according to the first embodiment.
Fig. 4 is a schematic partial structure of a branch pipe of an electromagnetic pump having a self-priming structure of a second embodiment.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The terms of directions used in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", "top" and "bottom", are used for explaining and understanding the present invention only with reference to the orientation of the drawings, and are not intended to limit the present invention.
The words "first," "second," and the like in the terminology of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance and not as limiting the order of precedence.
In the present invention, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, detachably connected, or integrally formed; can be mechanically or electrically connected; 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 invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The liquid outlet rubber head of the electromagnetic pump in the prior art is in a static state when the pump does not work, the liquid outlet rubber head can be adhered with other parts for a long time, the electromagnetic pump is generally of a one-in one-out structure, the air compression pressure generated by the internal sealing cavity of the electromagnetic pump cannot meet the requirement of normal water supply, the electromagnetic pump is not easy to enter the sealing cavity when being started to work, the liquid outlet rubber head cannot be soaked by water, the liquid outlet rubber head is difficult to be opened by the air compression pressure of the sealing cavity, and particularly, large air back pressure exists in equipment connected with one end of the liquid outlet hole, and the liquid outlet rubber head can be further compressed by the air back pressure, so that water is difficult to pump.
The following is a first embodiment of an electromagnetic pump with a self-priming structure, which can solve the above technical problems.
Referring to fig. 1, 2 and 3, fig. 1 is a schematic structural diagram of a first embodiment of an electromagnetic pump with a self-priming structure according to the present invention. Fig. 2 is a schematic structural view of a self-priming structure of the electromagnetic pump with the self-priming structure of the first embodiment. Fig. 3 is a schematic diagram of a pump tube with a self-priming structure and a disassembled structure of the self-priming structure according to the first embodiment.
In the drawings, like structural elements are denoted by like reference numerals.
The invention provides an electromagnetic pump with a self-priming structure, which comprises a coil assembly 11, a pump pipe 13, an iron core 12, a return spring 14, a liquid outlet control spring 18, a liquid inlet control spring 17, a liquid outlet rubber head 16, a liquid inlet rubber head 15 and a self-priming structure 19.
The two ends of the pump tube 13 are respectively provided with a liquid inlet hole and a liquid outlet hole (it can be understood that the pump tube 13 in the embodiment is of a split structure and is convenient for internally mounting parts), the iron core 12 is slidably arranged in the pump tube 13, the iron core 12 is axially penetrated, the liquid outlet rubber head 16 is matched with the liquid outlet control spring 18 to seal the liquid outlet hole in a unidirectional manner, the liquid inlet rubber head 15 is matched with the liquid inlet control spring 17 to seal a port at one end of the iron core 12 in a unidirectional manner, a sealing cavity 131 is arranged between the iron core 12 and the liquid outlet hole, and the liquid outlet rubber head 16 and the liquid inlet rubber head 15 are blocked at two ends of the sealing cavity 131 in opposite water blocking directions.
The self-priming structure 19 comprises a branch pipe 191 and a sealing head 192, wherein a liquid guide hole 1911 penetrating along the axial direction is formed in the branch pipe 191, the liquid guide hole 1911 is communicated with the sealing cavity 131 and the external space, and the sealing head 192 is movably arranged in the branch pipe 191 and used for sealing the liquid guide hole 1911.
When the electromagnetic pump is started, air in the sealing cavity 131 can be discharged through the self-priming structure, so that water easily enters the sealing cavity and wets out the liquid rubber head, the adhesion force between the liquid rubber head 16 and other parts is small, the liquid rubber head 16 is easy to open, and the water is easily pumped out.
The self-priming structure 19 in this embodiment further includes a self-priming spring 193 and a spring seat 194, the spring seat 194 being connected to an end of the branch pipe 191 remote from the pump pipe 13, the self-priming spring 193 being disposed between the sealing head 192 and the spring seat 194. Meanwhile, the disassembly and the assembly are convenient, and parts are replaced and utilized.
Referring to fig. 3, in the present embodiment, a branch pipe 191 is in threaded connection with a pump pipe 13, a convex ring 1912 is disposed on the outer periphery of one end of the branch pipe 191 away from the pump pipe 13, a spring seat 194 includes a connecting shaft 1941 and a plurality of buckling parts 1942, the plurality of buckling parts 1942 are distributed on the circumferential side of the connecting shaft 1941, one end of the connecting shaft 1941 is sleeved in the branch pipe 191, and the buckling parts 1942 are clamped with the convex ring 1912, so that the connection is convenient.
Referring to fig. 2, in the present embodiment, two ends of a self-priming spring 193 are respectively sleeved with a sealing head 192 and a connecting shaft 1941, a communication hole 1943 is formed in a spring seat 194 to communicate a liquid guiding hole 1911 with an external space, and when the sealing head 192 moves a set distance in a direction approaching the spring seat 191, the sealing head 192 seals the communication hole 1943. That is, when the water pressure is high, the water pressure presses the sealing head 192 to seal the communication hole 1943, so that the branch pipe 191 does not output water any more, the set distance in the embodiment is between 0.5 and 3mm, and a smaller set distance can be set, so that the gas can be leaked and released, and water leakage is not easy.
One end of the sealing head 192 is provided with a conical tip portion for sealing the communication hole 1943, and an inner wall surface of the communication hole 1943 is provided with an inner conical surface adapted to an outer peripheral surface of the tip portion.
In addition, the outer periphery of the other end of the sealing head 192 may be provided with a sliding protrusion (the sliding protrusion is not shown in the drawing) for sliding contact with the inner wall surface of the branch pipe, so that the sealing head 192 can stably slide in the axial direction inside the branch pipe 191, is less liable to shake, and is more stable.
In this embodiment, the branch pipe 191 and the sealing head 192 are made of metal, so that adhesion is not easy to occur, and the liquid guiding hole 1911 can be communicated with the liquid inlet, so that the liquid guiding hole 1911 is discharged to one end of the liquid inlet when water leaks. When the sealing head 192 seals the liquid guiding hole 1911 and the liquid outlet head 16 seals the liquid outlet hole, the elastic force of the self-priming spring 193 is larger than that of the liquid outlet control spring 18, so that when the water pressure is smaller, water is more easily discharged through the liquid outlet hole, and the branch pipe 191 does not output water any more. It will be appreciated that when the liquid dispensing head 16 is adhered to the pump tube 13, the elastic force of the adhesive force and the liquid dispensing control spring 18 is greater than the elastic force of the self-priming spring 193, and the liquid dispensing head 16 is more difficult to be dispensed.
Alternatively, the spring seat 194 may be further configured to be screwed with the branch pipe 191, so that the elastic pressing force of the self-priming spring 193 on the sealing head 192 can be conveniently adjusted by screwing the spring seat 194. However, the disadvantage of the threaded connection compared to the snap connection is that it requires a large number of rotations to connect the spring seat 194 to the branch 191 to a certain extent, which is not convenient for assembly and disassembly.
In the invention, a threaded hole for threaded connection with the branch pipe 191 is arranged on the pump pipe 13, a reaming is arranged on the periphery of the threaded hole, the branch pipe 191 is matched with the reaming in a positioning way, and a sealing ring is arranged between the branch pipe 191 and the reaming, so that the branch pipe 191 and the pump pipe 13 are stably connected in a sealing way.
The electromagnetic pump with the self-priming structure disclosed by the invention has the working principle that: the coil assembly 11 is electrified to generate a magnetic field, the iron core 12 is influenced by magnetic force to move to the left end in the direction of fig. 1 to compress the return spring 14, the volume of the sealing cavity 131 is increased in the process, the pressure is reduced, and the liquid inlet rubber head 15 is easy to open to balance the pressure of the sealing cavity 131.
Then, because alternating current is used, the coil assembly 11 can change from electrified to non-electrified, and when the electricity is not used, the return spring 14 can reset and push the iron core 12 to the right end in fig. 1, drives the liquid inlet rubber head 15 to compress the sealing cavity 131, meanwhile, the volume of the sealing cavity 131 is becoming smaller, the pressure is becoming larger, the liquid outlet rubber head 16 is tightly sealed due to the adhesion condition of the liquid outlet rubber head 16 or the larger back pressure of one end of the water outlet hole, at the moment, the sealing head 192 can be propped to balance the pressure, gas can be discharged from the liquid guide hole 1911 of the branch pipe 191, and the reciprocating operation can discharge the gas.
The gas is discharged and pumped, water can enter the sealing cavity 131 and wets out the liquid rubber head 16, so that the adhesion force between the liquid rubber head 16 and the pump tube 13 is reduced, the liquid rubber head 16 is easy to open, and water is easy to pump out from the liquid outlet hole.
It should be further noted that, the water pressure in the sealing cavity 13 also presses the sealing head 192 to open, but the sealing head 192 is limited by the spring seat 194, the stroke of the sealing head 192 is very short, and the large back pressure also makes the pressure in the sealing cavity relatively large, so that the sealing head 192 can be pressed to relatively stably push against the communication hole of the spring seat 194, so that the branch pipe 191 no longer releases water.
The electromagnetic pump with the self-priming structure of the preferred embodiment has the self-priming structure, so that when the electromagnetic pump is started, air in the sealing cavity can be discharged through the self-priming structure, water can easily enter the sealing cavity and can be soaked out of the liquid rubber head, the adhesion force between the liquid rubber head and other parts is small, the liquid rubber head is easy to open, and the water can be pumped out easily.
The following is a second embodiment of an electromagnetic pump with a self-priming structure, which can solve the above technical problems. The working principle of the self-priming structure of the present embodiment is the same as that of the first embodiment, and the main difference is that, compared with the first embodiment, the connection between the spring seat and the branch pipe 21 of the self-priming structure of the present embodiment has a further improved structure, so that the use is more convenient, but the cost is relatively higher.
The invention provides an electromagnetic pump with a self-priming structure, which comprises a coil assembly, a pump pipe, an iron core, a reset spring, a liquid outlet control spring, a liquid inlet control spring, a liquid outlet rubber head, a liquid inlet rubber head and the self-priming structure.
The two ends of the pump pipe are respectively provided with a liquid inlet hole and a liquid outlet hole, the iron core is arranged in the pump pipe in a sliding way, the iron core is penetrated in the axial direction, the liquid outlet rubber head is matched with the liquid outlet control spring to seal the liquid outlet hole in a one-way, the liquid inlet rubber head is matched with the port of one end of the liquid inlet control spring to seal the iron core in a one-way, a sealing cavity is arranged between the iron core and the liquid outlet hole, and the liquid outlet rubber head and the liquid inlet rubber head are blocked at two ends of the sealing cavity in opposite water blocking directions.
The self-priming structure comprises a branch pipe 21 and a sealing head, wherein the inside of the branch pipe 21 is provided with a liquid guide hole penetrating along the axial direction, the liquid guide hole is communicated with a sealing cavity and an external space, and the sealing head is movably arranged in the branch pipe 21 and is used for sealing the liquid guide hole.
The self-priming structure further comprises a self-priming spring and a spring seat, wherein the spring seat is connected to one end of the branch pipe 21, which is far away from the pump pipe, and the self-priming spring is arranged between the sealing head and the spring seat.
In the invention, a branch pipe 21 is in threaded connection with a pump pipe, a convex ring 211 is arranged on the periphery of one end, far away from the pump pipe, of the branch pipe 21, a spring seat comprises a connecting shaft and a clamping part, a plurality of clamping parts are distributed on the periphery side of the connecting shaft, one end of the connecting shaft is sleeved in the branch pipe 21, and the clamping part is clamped with the convex ring 211.
Referring to fig. 4, in the present embodiment, a first positioning groove 212 and a second positioning groove 213 for positioning the connecting buckle portion are provided on the convex ring 211, the depth directions of the first positioning groove 212 and the second positioning groove 213 are consistent with the axial direction of the connecting shaft, and the depths of the first positioning groove 212 and the second positioning groove 213 are unequal. Therefore, when the clamping parts are clamped in the positioning grooves which are not different any more, the spring seat can extrude the self-priming spring to different degrees, and the elastic extrusion force of the self-priming spring to the sealing head can be adjusted according to the actual use condition of the spring.
In the present invention, the branch pipe 21 is provided with a guide ring 21A, the snap part is located between the guide ring 21A and the convex ring 211, the guide ring 21A is provided with a first guide path, the first guide path includes a first guide inclined plane 216 and a second guide inclined plane 217, the inclination direction of the first guide inclined plane 216 is opposite to that of the second guide inclined plane 217, the first end of the first guide inclined plane 216 is opposite to the first positioning groove 212, the second end of the first guide inclined plane 216 is opposite to the first end of the second guide inclined plane 217, and the second end of the second guide inclined plane 217 is butted with the second positioning groove 213. So that when the pressing spring seat moves towards the pump pipe, the clamping part can slide along the inclined surface of the first guide inclined surface 216, then fall onto the second guide inclined surface 217 and then smoothly slide into the second positioning groove 213. Therefore, the switching of the buckling part between different positioning grooves can be realized by only beating the spring seat forcefully, the extrusion adjustment of the self-priming spring is completed, and the operation is very convenient.
In the present invention, the convex ring 211 is further provided with the guiding groove 214, the guiding ring 21A is provided with the second guiding path, the second guiding path includes the third guiding inclined plane 218 and the fourth guiding inclined plane 219, the inclination direction of the third guiding inclined plane 218 is opposite to the inclination direction of the fourth guiding inclined plane 219, the first end of the third guiding inclined plane 218 is opposite to the second positioning groove 213, the second end of the third guiding inclined plane 218 is opposite to the first end of the fourth guiding inclined plane 219, and the second end of the fourth guiding inclined plane 219 is in butt joint with the guiding groove 214. The fastening portion is not directly led out from the guiding groove 214, but is easy to detach after force is applied, so that the detachment is very convenient.
In the present invention, the convex ring 211 is provided with the guide groove 215 for guiding the fastening part to connect at one side far away from the pump pipe, the position of the guide groove 215 is opposite to the first positioning groove 212 or the second positioning groove 213, and the fifth guide inclined plane is provided in the guide groove 215 along the axial direction of the branch pipe 21, so that the installation is more convenient.
In this embodiment, the fastening portion of the spring seat can be installed between the guide ring 21A and the convex ring 211 through the guide groove 215, and can be stably fitted in the first positioning groove 212 or the second positioning groove 213 under the compression of the self-priming spring. The fastening part can be switched from the first positioning groove 212 to the second positioning groove 213 through the first guiding path on the guiding ring 21A, and can be switched from the second positioning groove 213 to the guiding groove 214 through the second guiding path on the guiding ring 21A, so that the operation is very convenient.
In summary, although the present invention has been described in terms of the preferred embodiments, the preferred embodiments are not limited to the above embodiments, and various modifications and changes can be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention is defined by the appended claims.

Claims (6)

1. An electromagnetic pump with a self-priming structure is characterized by comprising a coil assembly, a pump pipe, an iron core, a reset spring, a liquid outlet control spring, a liquid inlet control spring, a liquid outlet rubber head, a liquid inlet rubber head and the self-priming structure;
the two ends of the pump pipe are respectively provided with a liquid inlet hole and a liquid outlet hole, the iron core is arranged in the pump pipe in a sliding way, the iron core is penetrated in the axial direction, the liquid outlet rubber head is matched with the liquid outlet control spring to seal the liquid outlet holes in a unidirectional way, the liquid inlet rubber head is matched with the liquid inlet control spring to seal a port at one end of the iron core in a unidirectional way, a sealing cavity is arranged between the iron core and the liquid outlet holes, and the liquid outlet rubber head and the liquid inlet rubber head are blocked at two ends of the sealing cavity in opposite water blocking directions;
the self-priming structure comprises a branch pipe and a sealing head, wherein a liquid guide hole penetrating along the axial direction is formed in the branch pipe, the liquid guide hole is communicated with the sealing cavity and the external space, and the sealing head is movably arranged in the branch pipe and is used for blocking the liquid guide hole;
the self-priming structure further comprises a self-priming spring and a spring seat, wherein the spring seat is connected to one end of the branch pipe far away from the pump pipe, and the self-priming spring is arranged between the sealing head and the spring seat;
the branch pipe is in threaded connection with the pump pipe, a convex ring is arranged on the periphery of one end, far away from the pump pipe, of the branch pipe, and the spring seat comprises a connecting shaft and a clamping part;
the spring seat is in threaded connection with the branch pipe, a first positioning groove and a second positioning groove which are used for positioning and connecting the clamping part are formed in the convex ring, the depth directions of the first positioning groove and the second positioning groove are consistent with the axial direction of the connecting shaft, and the depths of the first positioning groove and the second positioning groove are unequal;
be provided with the guide ring on the branch pipe, buckle portion is located the guide ring with between the bulge loop, be provided with first direction route on the guide ring, including first direction inclined plane and second direction inclined plane in the first direction route, the incline direction of first direction inclined plane with the incline direction of second direction inclined plane is opposite, the first end of first direction inclined plane with first constant head tank is relative, the second end of first direction inclined plane with the first end of second direction inclined plane is relative, the second end of second direction inclined plane with the butt joint of second constant head tank.
2. The electromagnetic pump with the self-priming structure according to claim 1, wherein a plurality of the fastening portions are distributed on the peripheral side of the connecting shaft, one end of the connecting shaft is sleeved in the branch pipe, and the fastening portions are clamped with the convex ring.
3. The electromagnetic pump with the self-priming structure according to claim 2, wherein two ends of the self-priming spring are respectively sleeved with the sealing head and the connecting shaft, a communication hole for communicating the liquid guide hole with an external space is formed in the spring seat, and when the sealing head moves a set distance in a direction approaching the spring seat, the sealing head seals the communication hole.
4. The electromagnetic pump with self-priming structure according to claim 3, wherein one end of said sealing head is provided with a conical tip portion for sealing said communication hole, an inner wall surface of said communication hole is provided with an inner conical surface adapted to an outer peripheral surface of said tip portion, and an outer periphery of the other end of said sealing head is provided with a sliding protrusion for sliding contact with an inner wall surface of said branch pipe.
5. The electromagnetic pump with the self-priming structure according to claim 1, wherein the branch pipe and the sealing head are made of metal materials, the liquid guide hole is communicated with the liquid inlet hole, and when the sealing head seals the liquid guide hole and the liquid outlet rubber head seals the liquid outlet hole, the elastic force of the self-priming spring is larger than the elastic force of the liquid outlet control spring.
6. The electromagnetic pump with self-priming structure according to claim 1, wherein the convex ring is further provided with a guiding groove, the guiding ring is provided with a second guiding path, the second guiding path comprises a third guiding inclined plane and a fourth guiding inclined plane, the inclination direction of the third guiding inclined plane is opposite to that of the fourth guiding inclined plane, the first end of the third guiding inclined plane is opposite to the second positioning groove, the second end of the third guiding inclined plane is opposite to the first end of the fourth guiding inclined plane, and the second end of the fourth guiding inclined plane is in butt joint with the guiding groove;
the convex ring is far away from one side of the pump pipe and is provided with an introduction groove for guiding the buckling part to be connected, the position of the introduction groove is opposite to the first positioning groove or the second positioning groove, and a fifth guide inclined plane is arranged in the introduction groove along the axial direction of the branch pipe.
CN202210474360.XA 2022-04-29 2022-04-29 Electromagnetic pump with self-priming structure Active CN114837958B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210474360.XA CN114837958B (en) 2022-04-29 2022-04-29 Electromagnetic pump with self-priming structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210474360.XA CN114837958B (en) 2022-04-29 2022-04-29 Electromagnetic pump with self-priming structure

Publications (2)

Publication Number Publication Date
CN114837958A CN114837958A (en) 2022-08-02
CN114837958B true CN114837958B (en) 2024-03-26

Family

ID=82568675

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210474360.XA Active CN114837958B (en) 2022-04-29 2022-04-29 Electromagnetic pump with self-priming structure

Country Status (1)

Country Link
CN (1) CN114837958B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201330687Y (en) * 2008-04-11 2009-10-21 熊颖申 Electromagnetic water pump with check aeration valve
CN204738924U (en) * 2015-07-09 2015-11-04 深圳华星恒泰泵阀有限公司 Area is from electromagnetism water pump of inhaling valve and relief valve
CN206539490U (en) * 2017-01-23 2017-10-03 惠州市三协磁电技术有限公司 A kind of electromagnetic pump of built-in rubber pad
CN110486524A (en) * 2019-09-10 2019-11-22 高满囡 Pressure controlled solenoid valve is realized by mechanical force transmitting
CN210422911U (en) * 2019-07-16 2020-04-28 深圳华星恒泰泵阀有限公司 Miniature electromagnetic water pump
CN114109805A (en) * 2021-11-26 2022-03-01 深圳华星恒泰泵阀有限公司 Leakage-proof electromagnetic pump

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201330687Y (en) * 2008-04-11 2009-10-21 熊颖申 Electromagnetic water pump with check aeration valve
CN204738924U (en) * 2015-07-09 2015-11-04 深圳华星恒泰泵阀有限公司 Area is from electromagnetism water pump of inhaling valve and relief valve
CN206539490U (en) * 2017-01-23 2017-10-03 惠州市三协磁电技术有限公司 A kind of electromagnetic pump of built-in rubber pad
CN210422911U (en) * 2019-07-16 2020-04-28 深圳华星恒泰泵阀有限公司 Miniature electromagnetic water pump
CN110486524A (en) * 2019-09-10 2019-11-22 高满囡 Pressure controlled solenoid valve is realized by mechanical force transmitting
CN114109805A (en) * 2021-11-26 2022-03-01 深圳华星恒泰泵阀有限公司 Leakage-proof electromagnetic pump

Also Published As

Publication number Publication date
CN114837958A (en) 2022-08-02

Similar Documents

Publication Publication Date Title
US12000386B2 (en) Plunger, hydraulic end and plunger pump
US11971023B2 (en) Miniature electromagnetic water pump
CN114837958B (en) Electromagnetic pump with self-priming structure
CN210623065U (en) Fluid end mechanism of emulsion pump
CN216589106U (en) Novel oil gas recovery pump and oiling machine
CN214577563U (en) Diaphragm type metering pump
CN214699401U (en) Connection sealing mechanism for water inlet valve and water discharge valve
CN213270245U (en) Plunger pump check valve
CN113685329A (en) Reciprocating electromagnetic pump
CN114893411A (en) Electromagnetic pump with high-efficiency output
CN221003098U (en) Water pump structure capable of preventing unidirectional failure
CN114508597A (en) Electric valve
CN214533498U (en) Novel plunger pump
CN219993888U (en) Diaphragm pump for beverage machine
CN209977359U (en) Pressure reducing valve
CN220286530U (en) Check valve, flushing assembly and toilet
CN220849968U (en) Diaphragm chamber feeding mechanism of volumetric pump
CN117570016B (en) Pump head structure for improving tightness and rotary valveless plunger pump
CN208651683U (en) Valve and refrigeration system with the valve
CN220060660U (en) High-performance high-pressure one-way valve
CN217043055U (en) Discharge structure of diaphragm spraying machine
CN220395994U (en) Novel agricultural irrigation water pump
CN221220785U (en) Pump head sealing structure of valveless plunger pump
CN219711765U (en) Eccentric peristaltic pump
CN211599596U (en) Novel suck-back valve

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant