CN211287992U

CN211287992U - Solenoid valve charge pump that leakproofness is good

Info

Publication number: CN211287992U
Application number: CN201922157605.2U
Authority: CN
Inventors: 龙炳伶; 李寿兰
Original assignee: Dongguan Ji Keer Automation Technology Co ltd
Current assignee: Dongguan Ji Keer Automation Technology Co ltd
Priority date: 2019-12-05
Filing date: 2019-12-05
Publication date: 2020-08-18
Anticipated expiration: 2029-12-05

Abstract

The utility model relates to a control fluid measurement technical field specifically is a solenoid valve infusion pump that leakproofness is good, which comprises an outer shell, the shell is the U type that the opening is downward and have the vallecular cavity, one side of vallecular cavity is equipped with the adapter sleeve, the inner chamber of adapter sleeve is equipped with the pump housing through the seal cover connection, the terminal surface that the seal cover is close to the pump housing is equipped with first sealing washer, the seal cover is located the terminal cover of adapter sleeve and is equipped with the second sealing washer, be equipped with the volume chamber in the pump housing, the volume intracavity is equipped with horizontal reciprocating motion's case, the one end that the vallecular cavity is close to the adapter sleeve is equipped with the motor cabinet, the one end fixed mounting that the adapter sleeve was kept away from to the motor cabinet has driving. Through the U type shell that the opening is decurrent, carry out effectual protection to the infusion pump, through the seal cover, adapter sleeve, the screw-nut subassembly that set up, protect layer upon layer, make liquid can not enter into driving motor through the case, the leakproofness is better.

Description

Solenoid valve charge pump that leakproofness is good

Technical Field

The utility model relates to a control fluid measurement technical field especially relates to a solenoid valve charge pump that leakproofness is good.

Background

The liquid injection pump is widely applied to industries such as electrolyte, acid, alkali, glue, reagent and the like. In the existing liquid injection pump, an output shaft of a driving motor is connected with a plunger rod through a rotary joint, and the plunger rod is arranged in a plunger cavity. When the driving motor drives the plunger rod to rotate, liquid in the plunger cavity easily flows into the rotary joint along a gap between the plunger rod and the cavity wall of the plunger cavity, an output shaft of the rotary motor is connected with the rotary joint through the coupler, the liquid entering the rotary joint can invade into the rotary motor, the rotary motor is easily damaged, and the service life of the motor is shortened. On the other hand, the disclosed priming pump is not provided with a protective casing, and dust and the like fall into gaps of parts and are difficult to clean.

Disclosure of Invention

An object of the utility model is to prior art current situation, provide a solenoid valve priming pump that the leakproofness is good.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a solenoid valve priming pump that leakproofness is good, includes the shell, its characterized in that: the casing is the U type that the opening is downward and has the vallecular cavity, and one side in vallecular cavity is equipped with the adapter sleeve, the inner chamber of adapter sleeve is connected through the seal cover and is equipped with the pump housing, the terminal surface that the seal cover is close to the pump housing is equipped with first sealing washer, and the seal cover is located the terminal cover of adapter sleeve and is equipped with the second sealing washer, be equipped with the volume chamber in the pump housing, be equipped with horizontal reciprocating motion's case in the volume chamber, the vallecular cavity is close to the one end of adapter sleeve and is equipped with the motor cabinet, and the one end fixed mounting that the adapter sleeve was kept away from to the motor cabinet has driving motor.

The lead screw nut assembly is located in the mounting hole, two tail ends of the mounting hole extend outwards to form a stopping boss used for jacking the connecting sleeve and an isolating boss used for isolating the driving motor, the stopping boss and the axial end face of one side, close to the connecting sleeve, of the motor base form a stopping cylindrical cavity, a convex body matched with the stopping cylindrical cavity is arranged at one end, close to the motor base, of the connecting sleeve, and the isolating boss and the other axial end face of the motor base form an isolating cylindrical cavity used for mounting the spacer sleeve.

The screw-nut assembly comprises a front nut connected with the valve core and a rear nut connected with the screw-nut through threads, a main shaft of the driving motor penetrates through the rear nut to be connected with the screw-nut, and the screw-nut assembly further comprises a nut fixing sleeve used for connecting the front nut, the screw-nut and the rear nut together.

And a concave cavity used for coating the tail end of the valve core is formed at one end of the front nut close to the connecting sleeve.

The top of the nut fixing sleeve is provided with an induction column, and one end of the top of the motor base, which is close to the motor, is provided with an induction switch matched with the induction column for use.

And the top of the motor base is also provided with a long round hole for the induction column to slide along with the nut fixing sleeve.

An electromagnetic valve is arranged above the pump sleeve, the electromagnetic valve is a three-way valve, a liquid inlet hole connected with the electromagnetic valve, a straight-through hole communicated with the volume cavity and the electromagnet and a liquid outlet hole connected with the electromagnetic valve are arranged in the pump sleeve in parallel, and the liquid inlet hole and the liquid outlet hole are respectively positioned on two sides of the straight-through hole.

The end face of the pump sleeve, which is far away from the connecting sleeve, is provided with a liquid inlet joint and a liquid outlet joint, the liquid inlet hole and the electromagnetic valve are connected, and the liquid outlet joint, the liquid outlet hole and the electromagnetic valve are connected.

One end of the groove cavity, which is far away from the connecting sleeve, is provided with a connecting plate, and the connecting plate is provided with an aviation connector.

The beneficial effects of the utility model reside in that: through the U type shell that the opening is decurrent, carry out effectual protection to the infusion pump, through the seal cover, adapter sleeve, the screw-nut subassembly that set up, protect layer upon layer, make liquid can not enter into driving motor through the case, the leakproofness is better.

Drawings

FIG. 1 is a side view of a solenoid operated infusion pump.

Fig. 2 is a cross-sectional view taken at a-a in fig. 1.

FIG. 3 is a first perspective view of the solenoid operated priming pump.

FIG. 4 is a second perspective view of the solenoid operated priming pump.

FIG. 5 is a first exploded view of the solenoid operated priming pump.

FIG. 6 is a second exploded view of the solenoid operated priming pump.

FIG. 7 is a third exploded view of the solenoid operated priming pump.

Fig. 8 is a perspective view of the pump sleeve.

Fig. 9 is a first perspective view of the motor base.

Fig. 10 is a second perspective view of the motor base.

Fig. 11 is a schematic structural diagram of a sealing sleeve, a connecting sleeve, a lead screw nut assembly, a motor base and a driving motor.

Fig. 12 is an exploded schematic view of a seal cartridge, a connection sleeve, a feed screw nut assembly, a motor base, and a driving motor.

In the figure: 10-housing, 11-groove cavity, 12-connecting sleeve, 13-sealing sleeve, 14-pump sleeve, 15-first sealing ring, 16-second sealing ring, 17-volume cavity, 18-valve core, 19-motor base, 20-driving motor, 21-mounting hole, 22-main shaft, 23-stopping boss, 24-isolating boss, 25-stopping cylindrical cavity, 26-convex body, 27-spacer sleeve, 28-isolating cylindrical cavity, 29-front nut, 30-screw nut, 31-back nut, 32-nut fixing sleeve, 33-concave cavity, 34-slotted hole, 35-induction column, 36-induction switch, 37-electromagnetic valve, 38-liquid inlet hole, 39-straight through hole, 40-liquid outlet hole, 41-liquid inlet joint, 42-liquid outlet joint, 43-connecting plate, 44-aviation joint, 45-liquid inlet and 46-liquid outlet.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings and embodiments:

referring to figures 1-7 of the drawings, fig. 11-12 show, the utility model discloses a solenoid valve priming pump that leakproofness is good, which comprises a housing 10, shell 10 is the downward U type that has slot 11 of opening, one side of slot 11 is equipped with adapter sleeve 12, the inner chamber of adapter sleeve 12 is connected through seal cover 13 and is equipped with pump housing 14, the terminal surface that seal cover 13 is close to pump housing 14 is equipped with first sealing washer 15, the end cover that seal cover 13 is located adapter sleeve 12 is equipped with second sealing washer 16, be equipped with volume chamber 17 in the pump housing 14, be equipped with horizontal reciprocating motion's case 18 in the volume chamber 17, the one end that slot 11 is close to adapter sleeve 12 is equipped with motor cabinet 19, the one end fixed mounting that adapter sleeve 12 was kept away from to motor cabinet 19 has driving motor 20, motor cabinet 19 has opening mounting hole 21 along axial center, driving motor 20's main shaft 22 passes through the screw-nut subassembly and.

The feed screw nut assembly is located in the mounting hole 21, as shown in fig. 9-10, two ends of the mounting hole 21 extend outward to form a stopping boss 23 for stopping the connecting sleeve 12 and an isolating boss 24 for isolating the driving motor 20, the stopping boss 23 and an axial end face of the motor base 19 close to one side of the connecting sleeve 12 form a stopping cylindrical cavity 25, one end of the connecting sleeve 12 close to the motor base 19 is provided with a convex body 26 matched with the stopping cylindrical cavity 25, and the isolating boss 24 and the other axial end face of the motor base 19 form an isolating cylindrical cavity 28 for installing the spacer 27.

The feed screw nut assembly comprises a front nut 29 connected with the valve core 18 and a rear nut 31 connected with the feed screw nut 30 through threads, a main shaft 22 of the driving motor 20 penetrates through the rear nut 31 to be connected with the feed screw nut 30, and the feed screw nut assembly further comprises a nut fixing sleeve 32 used for connecting the front nut 29, the feed screw nut 30 and the rear nut 31 together. The end of the front nut 29 near the connecting sleeve 12 is provided with a cavity 33 for covering the end of the valve core 18. The top of the motor base 19 is also provided with a long round hole 34 for the induction column 35 to slide along with the nut fixing sleeve 32.

The main shaft 22 of the driving motor 20 is a screw rod, when the driving motor 20 rotates, the screw rod also rotates, and the torque is transmitted to the screw nut 30, because the screw nut 30 is connected with the nut fixing sleeve 32, the screw nut 30 makes an axial linear movement along the screw rod, so as to drive the nut fixing sleeve 32 to make an axial linear movement. The valve core 18 is fixedly connected with a front nut 29 of the feed screw nut component through a screw, and then the valve core 18 is further driven to axially and linearly move.

An induction column 35 is arranged above the nut fixing sleeve 32, and an induction switch 36 matched with the induction column 35 is arranged at one end, close to the motor, of the top of the motor base 19.

As shown in fig. 8, an electromagnetic valve 37 is disposed above the pump casing 14, a protective cover is sleeved outside the electromagnetic valve 37, the electromagnetic valve 37 used in the present application is a three-way valve, a liquid inlet hole 38 connected to the electromagnetic valve 37, a through hole 39 electromagnetically communicated with the volume cavity 17 and a liquid outlet hole 40 connected to the electromagnetic valve 37 are disposed in the pump casing 14 in parallel, and the liquid inlet hole 38 and the liquid outlet hole 40 are respectively disposed on two sides of the through hole 39.

The end surface of the pump sleeve 14 far away from the connecting sleeve 12 is provided with a liquid inlet joint 41 and a liquid outlet joint 42, the liquid inlet joint 41 and the liquid inlet hole 38 are connected with the electromagnetic valve 37, and the liquid outlet joint 42 and the liquid outlet hole 40 are connected with the electromagnetic valve 37.

And a connecting plate 43 is arranged at one end of the slot cavity 11 far away from the connecting sleeve 12, and an aviation connector 44 is mounted on the connecting plate 43.

The liquid inlet joint 41 is communicated with the liquid storage tank through a hose, and the liquid outlet joint 42 is also communicated with a container to be filled with liquid through a hose. When the valve core 18 moves in a direction away from the volume cavity 17, namely the valve core 18 moves rightwards, the liquid inlet 45 communicated with the electromagnetic valve 37 is opened, the liquid outlet 46 is closed, the liquid inlet connector 41, the liquid inlet hole 38, the liquid inlet 45 of the electromagnetic valve 37 and the through hole 39 form a liquid inlet channel, liquid is sucked into the volume cavity 17 from a liquid storage tank, when the valve core 18 moves in a direction close to the volume cavity 17, namely the valve core 18 moves leftwards, the liquid outlet 46 of the electromagnetic valve 37 is opened, the liquid inlet 45 is closed, the through hole 39, the liquid outlet 46 of the electromagnetic valve 37, the liquid outlet hole 40 and the liquid outlet connector 42 form a liquid outlet channel, and the liquid is pushed out of the volume cavity 17 to enter a container to be filled with the liquid, wherein the electromagnetic valve 37 is a known product.

The control drive unit of this application includes switching power supply, controller, driver and inductive switch 36, and inductive switch 36 is connected with the controller, and the controller all is connected with switching power supply with the driver. When the inductive switch 36 senses metal, it sends a direction signal and a pulse signal to the driver, so that the driving motor 20 rotates at a designated speed by a designated angle, thereby controlling the stroke of the linear movement of the valve core 18. On the other hand, the controller and the driver are both connected to a switching power supply, the switching power supply supplies power to the controller and the driver, and the power supply of the inductive switch 36 is supplied by the controller. In addition, the switching power supply, controller, driver and inductive switch 36 used in the present application are well known products.

Through the U-shaped shell 10 with the downward opening, the liquid injection pump is effectively protected, and through the arranged sealing sleeve 13, the connecting sleeve 12 and the screw nut component, the liquid is protected layer by layer, so that the liquid cannot enter the driving motor 20 through the valve core 18, and the sealing performance is better.

Of course, the above illustration is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, so all equivalent changes made in the principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a solenoid valve priming pump that leakproofness is good, includes shell (10), its characterized in that: the shell (10) is U-shaped with a downward opening and a groove cavity (11), one side of the groove cavity (11) is provided with a connecting sleeve (12), the inner cavity of the connecting sleeve (12) is connected with a pump sleeve (14) through a sealing sleeve (13), a first sealing ring (15) is arranged on the end surface of the sealing sleeve (13) close to the pump sleeve (14), a second sealing ring (16) is sleeved at the tail end of the sealing sleeve (13) positioned at the connecting sleeve (12), be equipped with volume chamber (17) in pump housing (14), be equipped with horizontal reciprocating motion's case (18) in volume chamber (17), the one end that tank chamber (11) are close to adapter sleeve (12) is equipped with motor cabinet (19), and the one end fixed mounting that adapter sleeve (12) were kept away from in motor cabinet (19) has driving motor (20), and motor cabinet (19) are opened along axial direction center has mounting hole (21), and main shaft (22) of driving motor (20) are connected with case (18) through the screw-nut subassembly.

2. The electromagnetic valve liquid injection pump with good sealing performance as claimed in claim 1, wherein: the feed screw nut assembly is located in the mounting hole (21), two tail ends of the mounting hole (21) extend outwards to form a stopping boss (23) used for jacking the connecting sleeve (12) and an isolating boss (24) used for isolating the driving motor (20), the stopping boss (23) and the axial end face of one side, close to the connecting sleeve (12), of the motor base (19) form a stopping cylindrical cavity (25), a convex body (26) matched with the stopping cylindrical cavity (25) is arranged at one end, close to the motor base (19), of the connecting sleeve (12), and the isolating boss (24) and the other axial end face of the motor base (19) form an isolating cylindrical cavity (28) used for installing the spacer bush (27).

3. The electromagnetic valve liquid injection pump with good sealing performance as claimed in claim 2, wherein: the screw nut assembly comprises a front nut (29) connected with the valve core (18) and a rear nut (31) connected with the screw nut (30) through threads, a main shaft (22) of the driving motor (20) penetrates through the rear nut (31) to be connected with the screw nut (30), and the screw nut assembly further comprises a nut fixing sleeve (32) used for connecting the front nut (29), the screw nut (30) and the rear nut (31) together.

4. The electromagnetic valve liquid injection pump with good sealing performance as claimed in claim 3, wherein: one end of the front nut (29) close to the connecting sleeve (12) is provided with a concave cavity (33) used for coating the tail end of the valve core (18).

5. The electromagnetic valve liquid injection pump with good sealing performance as claimed in claim 3, wherein: an induction column (35) is arranged above the nut fixing sleeve (32), and an induction switch (36) matched with the induction column (35) for use is arranged at one end, close to the motor, of the top of the motor base (19).

6. The electromagnetic valve liquid injection pump with good sealing performance as claimed in claim 5, wherein: the top of the motor base (19) is also provided with a long circular hole (34) for the induction column (35) to slide along with the nut fixing sleeve (32).

7. The electromagnetic valve liquid injection pump with good sealing performance as claimed in claim 1, wherein: an electromagnetic valve (37) is arranged above the pump sleeve (14), the electromagnetic valve (37) is a three-way valve, a liquid inlet hole (38) connected with the electromagnetic valve (37), a straight-through hole (39) communicated with the volume cavity (17) and the electromagnetism, and a liquid outlet hole (40) connected with the electromagnetic valve (37) are arranged in the pump sleeve (14) in parallel, and the liquid inlet hole (38) and the liquid outlet hole (40) are respectively positioned on two sides of the straight-through hole (39).

8. The electromagnetic valve liquid injection pump with good sealing performance as claimed in claim 7, wherein: the end face, far away from the connecting sleeve (12), of the pump sleeve (14) is provided with a liquid inlet connector (41) and a liquid outlet connector (42), the liquid inlet connector (41) and the liquid inlet hole (38) are connected with the electromagnetic valve (37), and the liquid outlet connector (42) and the liquid outlet hole (40) are connected with the electromagnetic valve (37).

9. The electromagnetic valve liquid injection pump with good sealing performance as claimed in claim 1, wherein: one end of the groove cavity (11) far away from the connecting sleeve (12) is provided with a connecting plate (43), and the connecting plate (43) is provided with an aviation connector (44).