CN115628211A

CN115628211A - Flow regulating structure and corresponding electromagnetic pump

Info

Publication number: CN115628211A
Application number: CN202211093690.0A
Authority: CN
Inventors: 熊颖申; 雷立强; 凌辉
Original assignee: Shenzhen Cnht Ltd
Current assignee: Shenzhen Cnht Ltd
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2023-01-20
Anticipated expiration: 2041-11-26
Also published as: CN115628211B; CN115681124A; CN114109805A; CN114109805B

Abstract

This application of dividing a case provides a flow control structure and corresponding electromagnetic pump, and the pump line one end of flow control structure is provided with out the liquid hole, is provided with the connection end on the inner wall in liquid hole, connects the overhead first conducting hole that is provided with intercommunication pump line inner chamber and exterior space of end. The flow regulating part is rotatably arranged in the first through hole, the first through hole comprises a first through hole penetrating to the inner cavity of the pump pipe and a second through hole penetrating to the outer space, the second through hole is formed in the flow regulating part and comprises a third through hole penetrating to the inner cavity of the pump pipe and a fourth through hole penetrating to the outer space, the second through hole and the fourth through hole are aligned all the time, the driving cover is rotatably connected with the pump pipe, one end of the driving cover is in contact with the lug to drive the flow regulating part to rotate, the alignment degree of the first through hole and the third through hole is controlled, and output flow is controlled to be communicated.

Description

Flow regulating structure and corresponding electromagnetic pump

The application is a divisional application, and the application number of the original application is as follows: "202111421703.8", application date is: the invention name of '11 month and 26 days 2021' is: "electromagnetic pump of leak protection".

Technical Field

The invention relates to the field of electromagnetic pumps, in particular to a flow regulating structure and a corresponding electromagnetic pump.

Background

The electromagnetic pump is an industrial product widely applied to daily life in the current market, and has various types and styles because the electromagnetic pump has selectable body types, excellent performance, long service life and great market demand all the time if applied to devices such as coffee makers, water dispensers, water purifiers, mopeds, irons and the like. In the prior art, many electromagnetic pumps have the problem of non-adjustable output flow, and in particular lack a combined leak-proof and flow-regulating structure.

Therefore, it is desirable to provide a flow rate adjusting structure and a corresponding electromagnetic pump to solve the above problems.

Disclosure of Invention

The invention provides a flow regulating structure and a corresponding electromagnetic pump, which are used for solving the problems that the electromagnetic pump in the prior art mostly has liquid leakage and the flow is not adjustable.

In order to solve the technical problems, the technical scheme of the invention is as follows: a flow regulating structure comprises a pump pipe, a liquid outlet control spring, a liquid outlet rubber head, a driving cover and a flow regulating piece;

one end of the pump pipe is provided with a liquid outlet hole, the liquid outlet rubber head is positioned in the pump pipe and used for sealing the liquid outlet hole in a one-way mode, the inner wall of the liquid outlet hole is provided with a connecting end, the periphery of the connecting end is sleeved with the liquid outlet control spring, the other end of the liquid outlet control spring acts on the liquid outlet rubber head, the connecting end is provided with a first conducting hole for communicating the inner cavity of the pump pipe with the external space, one end of the guide rod is connected with the pump pipe in a sliding mode, and the other end of the guide rod is connected with the liquid outlet rubber head to assist the forward sealing of the liquid outlet rubber head;

the flow regulating part is rotatably arranged in the first through hole, the first through hole comprises a first through hole penetrating to the inner cavity of the pump pipe and a second through hole penetrating to the outer space, the flow regulating part is provided with a second through hole, the second through hole comprises a third through hole penetrating to the inner cavity of the pump pipe and a fourth through hole penetrating to the outer space, the second through hole and the fourth through hole are aligned all the time, the inner wall of the pump pipe is provided with a through groove, the flow regulating part comprises a lug extending in the through groove, the driving cover is rotatably connected with the pump pipe, one end of the driving cover is connected in the through groove in a sealing mode, the driving cover is in contact with the lug to drive the flow regulating part to rotate, and therefore the alignment degree of the first through hole and the third through hole is controlled, and further the output flow is controlled.

In the invention, an elastic glue layer block is embedded in the lug, and a rough layer used for contacting with the glue layer block is arranged at the end part of the driving cover.

In the invention, the periphery of the flow regulating piece is provided with a positioning groove for arranging a sealing ring, and the movable sealing between the flow regulating piece and the connecting end is realized by arranging the sealing ring.

In the invention, the connecting end is in threaded connection with the inner wall of the liquid outlet hole, the flow regulating structure further comprises a guide rod and an anti-loosening cover, the anti-loosening cover is detachably and fixedly connected to one end, close to the liquid outlet hole, in the pump pipe, the guide rod penetrates through the connecting end and the anti-loosening cover simultaneously, and the guide rod is a square rod.

The flow adjusting structure further comprises a driving cover and a fixing ring, the fixing ring is clamped in the pump pipe and used for limiting axial movement of the anti-loosening cover, a second positioning tooth groove is formed in the inner side of the fixing ring, and the driving cover is axially connected to the pump pipe in a sliding mode;

a plurality of elastic telescopic rods are arranged at one end of the outer side of the anti-loosening cover, each elastic telescopic rod comprises a limiting end head, a first rod section and a second rod section, the first rod section and the anti-loosening cover are elastically connected, the limiting end head is connected to one end, far away from the first rod section, of the second rod section, and a second positioning convex tooth corresponding to the second positioning tooth socket is arranged on the second rod section;

the drive lid rotates to be connected a plurality of the periphery of second pole section and spacing is in the inboard of spacing end, during the elasticity telescopic link shrink, second location dogtooth with second location tooth's socket location cooperation, and then make solid fixed ring can restrict locking lid rotates, the extrusion of drive lid spacing end makes when the elasticity telescopic link is elongated, second location dogtooth with second location tooth's socket dislocation, and then make the drive lid can drive locking lid rotates.

Furthermore, the limiting end head is connected with the second rod section in a threaded connection mode.

Furthermore, the telescopic direction of the second rod section is obliquely arranged relative to the axial center line of the driving cover, and one end, far away from the first rod section, of the second rod section is far away from the axial center line of the driving cover.

In addition, the second positioning convex tooth is arranged on the second rod section in an axial sliding manner, a sliding block and a first elastic piece are respectively arranged at two ends of the second positioning convex tooth in the sliding direction, the sliding block is arranged on the second rod section in a sliding manner, and the sliding direction is along the radial direction of the second rod section;

the second rod section is sleeved on the periphery of the first rod section in a sliding mode, a second elastic piece is sleeved on the first rod section, a stop block is arranged at one end, located in the second rod section, of the first rod section, the second elastic piece is limited between the inner wall of the second rod section and the stop block, an extrusion rod used for extruding the sliding block is arranged on one side, close to the second elastic piece, of the stop block, and a first inclined surface used for extruding the second positioning convex teeth and a second inclined surface used for bearing extrusion of the extrusion rod are arranged on the sliding block;

the drive lid is close to one side of solid fixed ring is provided with third location tooth's socket, works as the extrusion of drive lid spacing end makes when the elastic telescopic rod is elongated, the stripper bar passes through the slider extrusion second location dogtooth is to being close to the direction of third location tooth's socket slides, second location dogtooth with third location tooth's socket location cooperation, so that the drive lid can stably drive locking lid rotates.

The invention also comprises an electromagnetic pump using the flow regulating structure.

Compared with the prior art, the invention has the beneficial effects that: the electromagnetic pump is provided with the guide rod, so that the liquid outlet control spring moves more regularly and orderly in the reciprocating motion process of the liquid outlet rubber head, the service life is long, the elasticity of the liquid outlet rubber head is more concentrated and accurate, the liquid outlet rubber head can be stably contacted with the liquid outlet hole to form better sealing, and the leakage-proof effect is realized. Meanwhile, the flow regulating piece is controlled to rotate by the driving cover through the arrangement of the flow regulating piece, so that the output flow is controlled, and the operation is convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the embodiments are briefly introduced below, and the drawings in the following description are only corresponding drawings of some embodiments of the present invention.

Fig. 1 is a schematic configuration diagram of a first embodiment of an electromagnetic pump of the present invention.

Fig. 2 is a schematic structural view of a second embodiment of the electromagnetic pump of the present invention.

Fig. 3 is an enlarged view of a portion a of fig. 2.

Fig. 4 is a schematic structural view of the anti-loosening cover in the second embodiment.

Fig. 5 is a schematic structural view of an elastic member in the second embodiment.

Fig. 6 is a schematic configuration diagram of a third embodiment of the electromagnetic pump of the present invention.

Fig. 7 is a schematic view of the contracted state of the elastic expansion link in the third embodiment.

Fig. 8 is a schematic view of the extended state of the elastic telescopic rod in the third embodiment.

Fig. 9 is a schematic structural view of a flow rate regulating member in the third embodiment.

Fig. 10 is a schematic configuration diagram of a fourth embodiment of the electromagnetic pump of the present invention.

Fig. 11 is a schematic structural view of a flow rate regulating member in the fourth embodiment.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the present invention, directional terms such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", "top" and "bottom" are used only with reference to the orientation of the drawings, and the directional terms are used for illustration and understanding of the present invention, and are not intended to limit the present invention.

The terms "first," "second," and the like in the terms of the invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or any order limitation.

In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., the connection may be a detachable connection, or a connection of a unitary construction; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

The electromagnetic pump in the prior art has the problem of weeping in the use.

The following is a first embodiment of an electromagnetic pump according to the present invention that solves the above technical problems.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an electromagnetic pump according to a first embodiment of the present invention.

In the drawings, elements having similar structures are denoted by the same reference numerals.

The embodiment provides an electromagnetic pump, which comprises a coil assembly 12, a pump pipe, an iron core 13, a return spring 14, a liquid outlet control spring 19, a liquid inlet control spring 18, a liquid outlet rubber head 16, a liquid inlet rubber head 15 and a guide rod 17.

The both ends of pump line are provided with feed liquor hole 113 and play liquid hole 114 respectively, iron core 13 slides and sets up in the pump line, iron core 13 link up along the axial, the iron core still can set up the through-hole in radial direction simultaneously, make things convenient for the liquid to get into, go out the liquid and glue head 16 cooperation play liquid control spring 19 one-way sealed play liquid hole 114, the port of the one end of iron core 13 is sealed to feed liquor gluey head 15 cooperation feed liquor control spring 18 one-way, be the pump chamber between iron core 13 and the play liquid hole 114, it blocks at the both ends of pump chamber with opposite direction that blocks water to go out liquid gluey head 16 and feed liquor gluey head 15.

The iron core 13 includes the position of holding liquid and flowing back the liquid position that are located both ends respectively on the slip orbit, and coil pack 12 encircles the periphery of establishing at the pump line for drive iron core 13 slides to holding the liquid position, and then can open feed liquor rubber head 15 and make liquid fill pump chamber, and reset spring 14 sets up between the inner wall of iron core 13 and pump line, is used for driving iron core 13 to slide to flowing back the liquid position, and then drives the liquid in the pump chamber and discharge to play liquid hole 114.

One end of the guide rod 17 is connected with the pump pipe in a sliding mode, and the other end of the guide rod is connected with the liquid outlet rubber head 16 to assist the liquid outlet rubber head 16 in sealing in the forward direction.

Specifically, a connection end 115 is arranged on an inner wall of the liquid outlet hole 114, a first end of the connection end 115 is connected with the inner wall of the pump tube, a liquid outlet control spring 19 is sleeved on the periphery of a second end of the connection end 115, a first via hole (reference numeral 114 in fig. 1 may also refer to the first via hole) for communicating an inner cavity of the pump tube with an external space is arranged at the first end of the connection end 115, and the guide rod 17 is connected with the connection end 115 in a penetrating and sliding manner. In the reciprocating motion process of the liquid outlet rubber head 16, the guide rod 17 can guide the motion of the liquid outlet rubber head 16, so that the motion stability is high, the liquid outlet rubber head can be stably contacted with a liquid outlet, the sealing performance is good, and the leakage-proof effect is achieved.

In this embodiment, the liquid outlet control spring 19 and the liquid inlet control spring 18 are both tower springs, and the tower springs are in a conical structure, so that the elastic force concentration can be further improved, and the tower springs are not easy to radially swing, thereby improving the sealing performance of the liquid outlet rubber head 16 and the liquid inlet rubber head 15.

The pump tube in this embodiment includes a front tube 111 and a rear tube 112, and the front tube 111 and the rear tube 112 are detachably butted to facilitate assembly of internal components.

Wherein, the electromagnetic pump still includes sleeve 116, and sleeve 116 is connected in the pump line, and sleeve 116 cup joints in iron core 13 periphery, and one end is provided with the liquid outlet on the sleeve 116, and the liquid outlet communicates with liquid outlet hole 114, goes out liquid and glues the head 16 activity seal liquid outlet, and feed liquor control spring 18 is located the liquid outlet and the feed liquor glues between the head 15.

When the electromagnetic pump of this embodiment works, after coil pack 12 circular telegram, cooperation reset spring 14, can drive iron core 13 make a round trip to reciprocate to slide, as in the view position of fig. 1, when iron core 13 slides to the left, can produce the clearance between iron core 13 and the feed liquor rubber head 15, liquid can flow in the pump chamber from the clearance between iron core 13 and the feed liquor rubber head 15, and it can block up the liquid outlet and prevent the liquid backward flow to go out liquid rubber head 16, when iron core 13 slides to the right, feed liquor rubber head 15 can extrude the liquid in the pump chamber, and extrude out liquid rubber head 16, make liquid discharge hole 114 discharge, it blocks up the liquid outlet once more under the effect of play liquid control spring 19 to go out liquid rubber head 16 after the completion, guide arm 17 can cooperate out liquid rubber head 16 to carry out stable reciprocal slip.

As follows, according to a second embodiment of the electromagnetic pump capable of solving the above technical problems, in this embodiment, the structures and principles of the coil assembly 12, the iron core 13, the return spring 14, the liquid outlet control spring 19, the liquid inlet control spring 18, the liquid outlet rubber head 16, and the liquid inlet rubber head 15 are the same as those of the first embodiment, and the main difference is that the connection end is movably arranged, and a corresponding movable adjustment structure is arranged, so that the elastic force of the liquid outlet control spring on the liquid outlet rubber head 16 can be further changed according to actual use conditions, the liquid outlet rubber head 16 cannot be easily damaged due to over-tightness or leakage due to over-looseness through adjustment, and an effect of improving the sealing performance is achieved.

The same reference numerals are used for the same structures as those of the first embodiment, and the rear tube 212 of the pump tube is modified in structure corresponding to the movable adjusting structure as compared with the first embodiment.

Referring to fig. 2, the present embodiment provides an electromagnetic pump, which includes a coil assembly 12, a pump tube, an iron core 13, a return spring 14, a liquid outlet control spring 19, a liquid inlet control spring 18, a liquid outlet rubber head 16, a liquid inlet rubber head 15, and a guide rod 17.

The two ends of the pump pipe are respectively provided with a liquid inlet hole 113 and a liquid outlet hole 114, the iron core 13 is arranged in the pump pipe in a sliding mode, the iron core 13 penetrates through the pump pipe along the axial direction, the liquid outlet rubber head 16 is matched with the liquid outlet control spring 19 to seal the liquid outlet hole 114 in a one-way mode, the liquid inlet rubber head 15 is matched with the liquid inlet control spring 18 to seal the port of one end of the iron core 13 in a one-way mode, a pump cavity is formed between the iron core 13 and the liquid outlet hole 114, and the liquid outlet rubber head 16 and the liquid inlet rubber head 15 are blocked at the two ends of the pump cavity in opposite water blocking directions;

the iron core 13 comprises a liquid storage position and a liquid discharge position which are respectively positioned at two ends on a sliding track, the coil assembly 12 is annularly arranged on the periphery of the pump pipe and used for driving the iron core 13 to slide to the liquid storage position so as to open the liquid inlet rubber head 15 to fill the pump cavity with liquid, and the reset spring 14 is arranged between the iron core 13 and the inner wall of the pump pipe and used for driving the iron core 13 to slide to the liquid discharge position so as to drive the liquid in the pump cavity to be discharged to the liquid outlet hole 114;

The inner wall of the liquid outlet hole 114 is provided with a connecting end 21, the first end of the connecting end 21 is connected with the inner wall of the pump pipe, the periphery of the second end of the connecting end 21 is sleeved with a liquid outlet control spring 19, the first end of the connecting end 21 is provided with a first conducting hole for communicating the inner cavity of the pump pipe with the external space, and the guide rod 17 is connected with the connecting end 21 in a penetrating and sliding manner.

Referring to fig. 3, in this embodiment, the electromagnetic pump further includes a locking cover 22, the locking cover 22 is detachably and fixedly connected to one end of the pump tube close to the liquid outlet hole 114, the connection end 21 is in threaded connection with the inner wall of the liquid outlet hole 114, the guide rod 17 penetrates through the connection end 21 and the locking cover 22 at the same time, the guide rod 17 is a square rod, so that the guide rod 17 can rotate synchronously with the connection end 21 and the locking cover, and the liquid outlet control spring 19 sleeved on the connection end 21 frequently moves, so that the connection end 21 is easily loosened, thereby affecting the sealing performance of the liquid outlet rubber head 16 to cause liquid leakage, and the connection end 21 can be prevented from being loosened by the locking cover 22.

Furthermore, the electromagnetic pump further comprises a fixed cover 24, the fixed cover 24 is fixedly connected to one end of the liquid outlet hole 114, and a sealing ring 25 is arranged between the fixed cover 24 and the pump tube, and can be fixedly and hermetically connected in a threaded connection mode.

Locking lid 22 restriction is between fixed lid 24 and pump line, and the both sides of locking lid 22 are provided with elastic component 23 and first location dogtooth 225 respectively, and fixed lid 24 inboard ring distribution has a plurality of first location tooth sockets, and when first location dogtooth 225 and first location tooth socket location were connected, locking lid 22 can not rotate to can connect the rotation of end 21 through guide arm 17 restriction, have locking effect.

The elastic component 23 is located between the anti-loose cover 22 and the pump pipe, and is used for extruding the anti-loose cover 22 to enable the first positioning convex tooth 225 and the first positioning tooth groove to keep positioning connection, the axial length of the first positioning convex tooth 225 is smaller than the axial elastic stroke of the elastic component 23, so that the anti-loose cover 22 can be rotated by compressing the elastic component 23, the first positioning convex tooth 225 and different first positioning tooth grooves are matched, the connecting end 21 is driven to rotate by the guide rod 17, and the elastic force formed by the liquid outlet control spring 19 by screwing in and out of the connecting end 21 is changed.

Referring to fig. 4, the anti-loose cover 22 in the present embodiment includes an outer ring portion 223, an inner ring portion 222, and a connecting rod 224, the inner ring portion 222 is located inside the outer ring portion 223, the connecting rod 224 is connected between the inner ring portion 222 and the outer ring portion 223, a first positioning protruding tooth 225 is located on the outer ring portion 223, a boss portion 221 which is convenient for being held and screwed is arranged in the middle of the inner ring portion 222, anti-skid threads are arranged on the surface of the boss portion 221, the guide rod 17 penetrates through the boss portion 221, and the anti-loose cover 22 is convenient for liquid to pass through and better allows a user to screw and adjust.

Referring to fig. 5, in the present embodiment, the elastic member 23 includes an annular plate 231, a bent portion 232, a spring and balls, the bent portions 232 are connected to a periphery of one side of the annular plate 231, which is close to the anti-loose cover 22, a through hole 233 is formed on the bent portion 232, the spring 26 is disposed between the bent portion 232 and the annular plate 231, the balls are disposed between the spring 26 and the through hole 233, the balls are in contact with the anti-loose cover 22 through the through hole 233, and the bent portion 232 and the spring 26 have dual elastic forces, so that the anti-loose cover 22 can be stably elastically supported, and the anti-loose cover 22 can be smoothly rotated when the first positioning protruding tooth 225 and the first positioning tooth socket are disconnected due to the arrangement of the balls.

When the electromagnetic pump of this embodiment needs to adjust the connection end 21, only the boss portion 221 needs to be held and the anti-loosening cover 22 needs to be pressed toward the elastic member 23, so that the first positioning protruding tooth 225 and the first positioning tooth groove are disconnected, and then the anti-loosening cover 22 is rotated to drive the connection end 21 to rotate, thereby achieving the purpose of adjusting the pre-tightening force of the liquid outlet control spring 19.

In addition, many electromagnetic pumps of the prior art suffer from the problem of non-adjustable output flow, and in particular lack of a leak-proof and flow-regulating combination.

The following is a third embodiment of the electromagnetic pump according to the present invention that solves the above technical problems. The structure and principle of the coil assembly 12, the iron core 13, the return spring 14, the liquid outlet control spring 19, the liquid inlet control spring 18, the liquid outlet rubber head 16 and the liquid inlet rubber head 15 in this embodiment are the same as those in the second embodiment, and the main difference is that the movable adjusting structure of the connecting end has a difference, and a flow adjusting piece is arranged to adjust the output flow.

Referring to fig. 6, the present embodiment provides an electromagnetic pump, which includes a coil assembly 12, a pump tube, an iron core 13, a return spring 14, a liquid outlet control spring 19, a liquid inlet control spring 18, a liquid outlet rubber head 16, a liquid inlet rubber head 15, and a guide rod 17.

The two ends of the pump pipe are respectively provided with a liquid inlet hole 113 and a liquid outlet hole 114, the iron core 13 is arranged in the pump pipe in a sliding mode, the iron core 13 penetrates through the pump pipe along the axial direction, the liquid outlet rubber head 16 is matched with the liquid outlet control spring 19 to seal the liquid outlet hole 114 in a one-way mode, the liquid inlet rubber head 15 is matched with the liquid inlet control spring 18 to seal the port of one end of the iron core 13 in a one-way mode, a pump cavity is formed between the iron core 13 and the liquid outlet hole 114, and the liquid outlet rubber head 16 and the liquid inlet rubber head 15 are blocked at the two ends of the pump cavity in opposite water blocking directions.

One end of the guide rod 17 is connected with the pump pipe in a sliding way, and the other end of the guide rod is connected with the liquid outlet rubber head 16 to assist the liquid outlet rubber head 16 in sealing in the positive direction.

In this embodiment, the inner wall of the liquid outlet hole 114 is provided with a connection end 31, a first end of the connection end 31 is connected with the inner wall of the pump tube, the periphery of a second end of the connection end 31 is sleeved with the liquid outlet control spring 19, the first end of the connection end 31 is provided with a first via hole for communicating the inner cavity of the pump tube with the external space, and the guide rod 17 is connected with the connection end 31 in a sliding manner.

The electromagnetic pump further comprises a locking cover 32, the locking cover 32 is detachably and fixedly connected to one end, close to the liquid outlet hole 114, in the pump pipe, the connecting end 31 is in threaded connection with the inner wall of the liquid outlet hole 114, the guide rod 17 is simultaneously in penetrating connection with the connecting end 31 and the locking cover 32, and the guide rod 17 is a square rod, so that the guide rod 17 can rotate synchronously with the connecting end 21 and the locking cover.

Referring to fig. 6, in the present embodiment, the electromagnetic pump further includes a driving cover 36 and a fixing ring 33, the fixing ring 33 is clamped in the pump tube, the fixing ring 33 is non-rotatable and is used for limiting the axial movement of the anti-loose cover 32, a second positioning spline is disposed inside the fixing ring 33, and the driving cover 36 is axially slidably connected to the pump tube.

The outside one end of locking lid 32 is provided with a plurality of elastic expansion link 34, elastic expansion link 34 includes spacing end 3421 and elastic connection's first pole section 341, second pole section 342, first pole section 341 is connected with locking lid 32, spacing end 3421 is connected in the one end that first pole section 341 was kept away from to second pole section 342, spacing end 3421 can adopt if threaded connection's mode is connected with second pole section 342, also make things convenient for the dismouting of drive lid 36 like this, be provided with the second location dogtooth 344 that corresponds with the second location tooth's socket on the second pole section 342.

The driving cover 36 is rotatably connected to the periphery of the second rod sections 342 and is limited on the inner side of the limiting end 3421, when the elastic telescopic rod 34 contracts, the second positioning protruding tooth 344 is in positioning fit with the second positioning tooth groove, so that the fixing ring 33 can limit the rotation of the anti-loose cover 32, the driving cover 36 extrudes the limiting end 3421 to extend the elastic telescopic rod 34, the second positioning protruding tooth 344 and the second positioning tooth groove are dislocated, so that the driving cover 36 can drive the anti-loose cover 32 to rotate through the elastic telescopic rod 34, further, the connecting end 31 can be driven to rotate through the guide rod 17, and the elastic force of the liquid outlet control spring 19 for sealing the liquid outlet rubber head 16 is adjusted.

Preferably, the extension and retraction directions of the plurality of second rod segments 342 are inclined relative to the axial centerline of the driving cap 36, and the end of the second rod segment 342 far away from the first rod segment 341 is further far away from the axial centerline of the driving cap 36. When making second pole section 342 extend like this, a plurality of second pole sections 342 homoenergetic are to the periphery diffusion, and second pole section 342 is bigger with drive lid 36 extrusion force, and frictional force is bigger to do benefit to drive lid 36 and pass through elasticity telescopic link 34 and drive locking lid 32 and rotate.

Referring to fig. 7 and 8, in the present embodiment, the second positioning protrusion 344 is axially slidably disposed on the second rod segment 342, a sliding block 345 and a first elastic member 346 are respectively disposed at two ends of the second positioning protrusion 344 in a sliding direction, and the sliding block 345 is slidably disposed on the second rod segment 342 in a radial direction of the second rod segment 342.

The second rod section 342 is sleeved on the periphery of the first rod section 341 in a sliding manner, a second elastic member 343 is sleeved on the first rod section 341, a stop 3411 is arranged at one end of the first rod section 341 in the second rod section 342, the second elastic member 343 is limited between the inner wall of the second rod section 342 and the stop 3411, a pressing rod 3412 for pressing the sliding block 345 is arranged on one side of the stop 3411 close to the second elastic member 343, and a first inclined surface for pressing the second positioning convex tooth 344 and a second inclined surface for bearing the pressing of the pressing rod 3412 are arranged on the sliding block 345.

The driving cap 36 is provided with a third positioning spline 361 on a side close to the fixing ring 33, when the driving cap 36 presses the position-limiting end 3421 to extend the elastic expansion link 34, the pressing rod 3412 presses the second positioning protrusion 344 through the sliding block 345 to slide in a direction close to the third positioning spline 361, and the second positioning protrusion 344 is in positioning fit with the third positioning spline 361, so that the driving cap 36 can stably drive the anti-loosening cap 32 to rotate through the elastic expansion link 34.

Referring to fig. 6 and 9, in the present embodiment, the electromagnetic pump further includes a flow rate adjusting member 35, the flow rate adjusting member 35 is rotatably disposed in the first through hole, the first through hole includes a first through hole 311 penetrating to the inner cavity of the pump tube and a second through hole penetrating to the external space (as shown in fig. 6, the second through hole is located at the right end of the connection end 31, and the structure of the first through hole is similar to that of the second through hole, so fig. 9 is also referred to), the flow rate adjusting member 35 is disposed with the second through hole, the second through hole includes a third through hole 353 penetrating to the inner cavity of the pump tube and a fourth through hole 354 penetrating to the external space, and the second through hole and the fourth through hole 354 are always aligned;

a through groove is formed in the inner wall of the pump pipe, the flow regulating member 35 comprises a lug 351 extending in the through groove, one end of the driving cover 36 is connected in the through groove in a sealing mode, the driving cover 36 is in contact with the lug 351 to drive the flow regulating member 35 to rotate, and therefore the alignment degree of the first through hole 311 and the third through hole 353 is controlled, and the output flow is further controlled. When the driving cap 36 controls the flow rate adjusting member 35 to rotate, the second positioning protrusion 344 and the second positioning tooth groove are positioned in a matching state, and at this time, the anti-loosening cap 32 can limit the rotation of the connection end 31, so that the flow rate adjustment and the adjustment of the connection end 31 do not interfere with each other.

It can be understood that the radial two sides of the flow-rate adjusting member 35 are provided with the third through holes 353, and on the radial cross section of the pump tube, the angle of a single through groove is designed to be between about 60 degrees and 90 degrees, that is, the first through hole 311 and the third through hole 353 can be controlled to complete the process from complete alignment to complete dislocation step by controlling the lug 351 to rotate completely in one stroke in the through groove.

In this embodiment, an elastic adhesive layer block 352 is embedded in the protruding lug 351, and a rough layer for contacting with the adhesive layer block 352 is disposed at the end of the driving cover 36, so that when the driving cover 36 is pushed in the direction close to the liquid outlet adhesive head 16, the driving cover 36 and the protruding lug 351 can be stably squeezed, and the driving cover 36 can drive the flow rate adjusting member 35 to rotate.

The periphery of the flow regulating member 35 is provided with a positioning groove 355 for setting a sealing ring, so that the movable sealing between the flow regulating member 35 and the connecting end 31 is realized by setting the sealing ring.

When the electromagnetic pump of this embodiment requires adjustment of the connection head 21. The driving cover 36 is pulled in the direction away from the dispensing head 16, the driving cover 36 extrudes the limiting end 3421 to extend the elastic telescopic rod 34, the second positioning protruding tooth 344 and the second positioning tooth groove are dislocated, and the second positioning protruding tooth 344 and the third positioning tooth groove 361 are in positioning fit, so that the driving cover 36 can drive the anti-loosening cover 32 to rotate through the elastic telescopic rod 34, the connecting end 31 can be driven to rotate through the guide rod 17, and the sealing elasticity of the dispensing control spring 19 on the dispensing head 16 can be adjusted.

When the flow rate adjusting member 35 needs to be adjusted, the driving cover 36 is pushed towards the direction close to the dispensing head 16, so that the driving cover 36 and the lug 351 form extrusion, and then the driving cover 36 can be rotated to drive the flow rate adjusting member 35 to rotate, so as to adjust the alignment degree of the first through hole 311 and the third through hole 353, thereby achieving the purpose of flow rate adjustment.

The following is a fourth embodiment of the electromagnetic pump according to the present invention that solves the above technical problems. It is mainly characterized in that a flow regulating member is arranged on the basis of the first embodiment, and the structure of the flow regulating member is different from that of the third embodiment.

Referring to fig. 10, the present embodiment provides an electromagnetic pump, which includes a coil assembly 12, a pump tube, an iron core 13, a return spring 14, a liquid outlet control spring 19, a liquid inlet control spring 18, a liquid outlet rubber head 16, a liquid inlet rubber head 15, and a guide rod 17.

The first through hole comprises a first through hole 1511 penetrating through the inner cavity of the pump pipe and a second through hole penetrating through the outer space, the flow regulating piece 41 is rotatably arranged in the first through hole, and the flow regulating piece 41 blocks the first through hole 1511 to different degrees, so that the purpose of regulating the flow is achieved.

Referring to fig. 11, two first through holes 1511 are oppositely disposed in the first through hole, the flow adjusting member 41 in this embodiment includes two baffles 411 for blocking the first through holes 1511, a lug 412 is disposed on one end of each of the two baffles 411, two ends of the inner side of each of the two baffles 411 are rotatably connected by two rotating rods 413, a rotating shaft 414 between the two rotating rods 413, and a rotating axis of the rotating shaft 414 is coaxially disposed with a central axis in the first through hole, so that when the baffle 411 is controlled to rotate by pulling the lug 412, the baffle 411 can slide along an inner wall surface of the connection end 115 to block the first through holes 1511, wherein the two baffles 411 are separately controlled, and are highly independent, and can be matched for flow adjustment, and therefore the adjustability is higher.

The inner wall of the liquid outlet hole of the electromagnetic pump with the adjustable flow is provided with the connecting end head, the first end of the connecting end head is provided with the first conducting hole, the first conducting hole comprises the first through hole penetrating to the inner cavity of the pump pipe and the second through hole penetrating to the external space, the flow adjusting piece is rotatably arranged in the first conducting hole, and the flow adjusting piece can be used for adjusting the output flow by plugging the first through hole to different degrees, so that the adjustment is convenient.

In addition, the electromagnetic pump is provided with the guide rod, so that the movement of the liquid outlet control spring is more regular and orderly in the reciprocating movement process of the liquid outlet rubber head, the service life is long, the elasticity of the liquid outlet rubber head is more concentrated and accurate, the liquid outlet rubber head can be stably contacted with the liquid outlet hole to form better sealing, a leakage-proof effect is achieved, the leakage-proof structure and the flow regulation structure can be better integrated together, and the comprehensive performance is strong.

In summary, although the present invention has been disclosed with reference to the preferred embodiments, the above embodiments are not intended to limit the present invention, and can be applied to different types of electromagnetic pumps with different sizes. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, as defined by the appended claims.

Claims

1. A flow regulating structure is characterized by comprising a pump pipe, a liquid outlet control spring, a liquid outlet rubber head, a guide rod, a driving cover and a flow regulating piece;

2. The flow regulating structure according to claim 1, wherein an elastic rubber layer block is embedded in the lug, and a rough layer for contacting the rubber layer block is provided at an end portion of the driving cap.

3. The flow regulating structure according to claim 1, wherein the flow regulating member is provided at an outer periphery thereof with a positioning groove for disposing a sealing ring, and movable sealing between the flow regulating member and the connection end is achieved by disposing the sealing ring.

4. The flow regulating structure according to claim 1, wherein the connecting end is in threaded connection with the inner wall of the liquid outlet hole, the flow regulating structure further comprises a locking cover, the locking cover is detachably and fixedly connected to one end, close to the liquid outlet hole, of the pump tube, the guide rod penetrates through the connecting end and the locking cover simultaneously, and the guide rod is a square rod.

5. The flow rate adjusting structure according to claim 4, further comprising a driving cover and a fixing ring, wherein the fixing ring is clamped in the pump pipe and used for limiting the axial movement of the anti-loosening cover, a second positioning tooth groove is arranged on the inner side of the fixing ring, and the driving cover is axially and slidably connected to the pump pipe;

the drive lid rotates to be connected and is a plurality of the periphery of second pole section and spacing be in the inboard of spacing end, during the elasticity telescopic link shrink, second location dogtooth with second location tooth's socket location fit, and then make solid fixed ring can restrict locking lid rotates, the drive lid extrusion spacing end makes when the elasticity telescopic link is elongated, second location dogtooth with second location tooth's socket dislocation, and then make the drive lid can drive locking lid rotates.

6. The flow regulating structure of claim 5, wherein the limit tip is threadably connected to the second segment.

7. The flow regulating structure of claim 5, wherein the direction of extension and retraction of the second rod segment is obliquely disposed with respect to the axial centerline of the driving cap, and the end of the second rod segment remote from the first rod segment is further remote from the axial centerline of the driving cap.

8. The flow rate adjusting structure according to claim 5, wherein the second positioning protrusion is axially slidably disposed on the second rod segment, and a sliding block and a first elastic member are respectively disposed at two ends of the second positioning protrusion in a sliding direction, the sliding block is slidably disposed on the second rod segment, and the sliding direction is along a radial direction of the second rod segment;

the second rod section is sleeved on the periphery of the first rod section in a sliding mode, a second elastic piece is sleeved on the first rod section, a stop block is arranged at one end, located in the second rod section, of the first rod section, the second elastic piece is limited between the inner wall of the second rod section and the stop block, an extrusion rod used for extruding the sliding block is arranged on one side, close to the second elastic piece, of the stop block, and a first inclined surface used for extruding the second positioning convex tooth and a second inclined surface used for bearing extrusion of the extrusion rod are arranged on the sliding block;

the drive lid is close to one side of solid fixed ring is provided with third location tooth's socket, works as the extrusion of drive lid spacing end makes when the elastic telescopic link extends, the pressure ram passes through the slider extrusion second location dogtooth is to being close to the direction of third location tooth's socket slides, second location dogtooth with third location tooth's socket location cooperation, so that the drive lid can stably drive locking lid rotates.

9. An electromagnetic pump, characterized in that the flow rate regulation structure of any one of claims 1 to 8 is used.