Novel electromagnetic duplex pump

Abstract

The utility model relates to a novel electromagnetic duplex pump. The oil pump has the advantage that oil can be pumped when the oil pump is started for the first time, and the oil pump comprises a pump body assembly, an oil inlet assembly, an oil outlet assembly, an electromagnetic assembly, an anti-backflow assembly, a balance disc assembly and a jacking spring, and a balance disc is arranged in a pump cavity in a sliding mode and attached to the inner wall of the pump cavity; the bottom of the pump cavity is provided with two oil injection channels parallel to the moving direction of the balance disc, plunger pipes are arranged in the two oil injection channels in a sliding mode, oil circulating assemblies are arranged in the plunger pipes, the other ends of the two plunger pipes are fixedly arranged in the balance disc, and the oil circulating assemblies are arranged in the oil injection channels. The lower ends of the two oil liquid circulation assemblies communicate with the oil injection channel, and the upper ends of the two oil liquid circulation assemblies communicate with the pump cavity.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of electromagnetic plunger pump, and specifically relates to a novel electromagnetic duplex pump. BACKGROUND

[0002] The plunger pump is a hydraulic pump that realizes oil suction and oil compression by the reciprocating movement of a plunger in a cylinder to change the sealed volume. The plunger pump has high pressure, compact structure, high efficiency, and convenient flow adjustment, and is therefore widely used in systems requiring high pressure, large flow, and large power and occasions requiring flow adjustment, such as engines, airplanes, ships, broaching machines, hydraulic machines, engineering machinery, and mining and metallurgical machinery. Currently, such electromagnetic plunger pumps are mainly single-channel, and in the lubrication system of a multi-cylinder small engine or an engine ignition device, multiple single-channel electromagnetic plunger pumps are used to build a pipeline system to meet the flow demand of engine lubrication or ignition, and a double-channel or multi-channel output structure plunger pump can reduce the resource demand of the engine, has a simple pipeline arrangement structure, and is high in reliability.

[0003] In a small-flow double-outlet electromagnetic plunger pump with the application number 202311467387.7, a balance disc is arranged, a pump cavity is arranged in a pump body, a pump cover is fixedly arranged on the pump body and in sealing cooperation with the pump cavity, an inlet and an outlet are arranged on the side wall of the pump cavity, a pressure control assembly is sealingly and fixedly arranged on the outlet, the end of an overflow pipe is sealingly and fixedly arranged on the inlet, an overflow grid is sealingly and fixedly arranged in the overflow pipe, a fine neck channel is arranged in the overflow pipe, an electromagnetic assembly is arranged on the pump cover, an oil injection channel is arranged at the bottom of the pump cavity, an anti-backflow assembly is sealingly and fixedly arranged at the outlet of the oil injection channel, a plunger pipe is fixedly arranged in the balance disc, and an oil passage is arranged in the plunger pipe. The balance disc controls the movement of the plunger pipe or multiple plunger pipes to form double-outlet or multiple-outlet flow, the pipeline mechanism for supplying oil to multiple cylinders or multiple systems is simplified, resource demand is reduced, and cost is lowered. The double-outlet flow is good in consistency, and the stability of the system is improved. However, the existing technology controls the inlet and outlet oil liquid in and out through inlet and outlet check valves. During the movement of the balance disc, the oil liquid in the oil liquid cavity is squeezed into the inlet check valve. When the product sprays oil for the first time, a large amount of air exists in the outlet check valve. The air is a compressible gas, and the oil liquid in the cavity between the inlet and the outlet cannot continuously flow in. The duplex pump cannot independently exhaust and spray oil when there is no liquid in the inlet and outlet cavities, which leads to abnormal first oil spraying. Therefore, a novel electromagnetic duplex pump capable of pumping oil at first start is designed to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the defects of the prior art and providing a novel electromagnetic duplex pump capable of pumping oil at first start.

[0005] The technical scheme of the utility model is as follows:

[0006] A novel electromagnetic dual pump includes a pump body assembly, an oil inlet assembly, an oil outlet assembly, an electromagnetic assembly, an anti-backflow assembly, a balance disc assembly, and a lifting spring. The balance disc is slidably disposed in the pump chamber and engages with the inner wall of the pump chamber. Two oil injection channels parallel to the moving direction of the balance disc are provided on the bottom of the pump chamber. A plunger tube is slidably disposed in each of the two oil injection channels. An oil flow assembly is disposed in each plunger tube. The other ends of the two plunger tubes are fixedly disposed in the balance disc. The lower ends of the two oil flow assemblies are connected to the oil injection channels, and the upper ends of the two oil flow assemblies are connected to the pump chamber.

[0007] Furthermore, the cross-section of the plunger tube is the same as the cross-section of the oil injection channel.

[0008] Furthermore, a plunger sealing ring is provided between the inner wall of the oil injection channel and the outer wall of the plunger tube.

[0009] Furthermore, the plunger sealing ring is fixed to the oil injection channel by a pressure plate.

[0010] Furthermore, a flow hole is provided on the pressure plate, the plunger tube passes through the flow hole, and the cross-section of the flow hole is larger than the cross-section of the plunger tube.

[0011] Furthermore, the oil flow assembly includes a first channel opened at the lower part of the plunger tube, a second channel opened in the middle part of the plunger tube, the lower end of the first channel is connected to the oil injection channel, the upper end of the first channel is connected to the middle part of the second channel, and both the left and right ends of the second channel are connected to the pump chamber, and the first channel and the second channel form a T-shaped channel.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention enables the electromagnetic dual pump to inject oil upon first startup by setting up an oil flow component on the plunger tube. Moreover, the structure of this application is simple and not prone to failure.

[0014] In summary, this invention has the advantage of being able to pump oil upon initial startup. Attached Figure Description

[0015] Figure 1 This is a top view schematic diagram of the novel electromagnetic double pump of this utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the present invention;

[0017] Figure 3 This is a longitudinal cross-sectional view of the present invention;

[0018] Figure 4 This is a schematic diagram of the plunger tube in this utility model.

[0019] In the diagram, 1 is the pump chamber; 2 is the oil injection channel; 3 is the balance disc; 4 is the plunger tube; 5 is the plunger seal ring; 6 is the pressure plate; 7 is the flow hole; 8 is the first channel; and 9 is the second channel. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figures 1-4 As shown, a novel electromagnetic dual pump includes a pump body assembly, an oil inlet assembly, an oil outlet assembly, an electromagnetic assembly, an anti-backflow assembly, a balance disc 3 assembly, and a lifting spring. The balance disc 3 is slidably disposed in the pump chamber 1 and fits against the inner wall of the pump chamber 1. Two oil injection channels 2 are provided on the bottom of the pump chamber 1, parallel to the moving direction of the balance disc 3. The above content refers to Chinese Patent Application No. 202311467387.7, which describes a small flow dual-outlet electromagnetic plunger pump. The structure and working principle are the same as the above patent and will not be described in detail here. A plunger tube 4 is slidably disposed in each of the two oil injection channels 2. An oil flow assembly is disposed in the plunger tube 4. The other end of each of the two plunger tubes 4 is fixedly disposed in the balance disc 3. The lower end of the two oil flow assemblies is connected to the oil injection channel 2, and the upper end of the two oil flow assemblies is connected to the pump chamber 1.

[0022] When the electromagnetic component is de-energized, the oil enters the oil injection channel 2 from the pump chamber 1 through the oil flow component. When the electromagnetic component is energized, the plunger tube 4 moves downward, closes the oil flow component, and squeezes the oil in the oil injection channel 2 out. When it resets, a negative pressure appears in the oil outlet chamber, making it easier for the oil in the pump chamber 1 to enter the oil injection channel 2.

[0023] In this embodiment, the cross-section of the plunger tube 4 is the same as the cross-section of the oil injection channel 2;

[0024] Preferably, a plunger sealing ring 5 is provided between the inner wall of the oil injection channel 2 and the outer wall of the plunger tube 4.

[0025] In this embodiment, the plunger sealing ring 5 is fixed to the oil injection channel 2 by the pressure plate 6.

[0026] In this embodiment, a flow hole 7 is provided on the pressure plate 6, the plunger tube 4 passes through the flow hole 7, and the cross-section of the flow hole 7 is larger than the cross-section of the plunger tube 4.

[0027] In the embodiment, the oil liquid flow assembly comprises a first channel 8 formed in the lower part of the plunger tube 4, a second channel 9 formed in the middle part of the plunger tube 4, the lower end of the first channel 8 is communicated with the oil injection channel 2, the upper end of the first channel 8 is communicated with the middle part of the second channel 9, the left and right ends of the second channel 9 are communicated with the pump cavity 1, the first channel 8 and the second channel 9 form a T-shaped channel, when the plunger tube 4 is reset, the oil liquid from the pump cavity 1 enters the first channel 8, the oil liquid in the first channel 8 enters the second channel 9 and then enters the oil injection channel 2, when the electromagnetic assembly is powered, the plunger tube 4 can be pushed to move downwards, when the oil inlet of the second channel 9 enters the oil injection channel 2, the oil liquid can no longer enter the oil injection channel 2 from the pump cavity 1, then the oil injection pipe continues to move to push the oil liquid in the oil injection channel 2 to be sprayed out;

[0028] Through the arrangement of the oil liquid flow assembly on the plunger tube 4, the electromagnetic double-pump can spray oil when it is started for the first time.

[0029] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A novel electromagnetic duplex pump, comprising a pump body assembly, an oil inlet assembly, an oil outlet assembly, an electromagnetic assembly, an anti-backflow assembly, a balance disc assembly and a jacking spring, the balance disc is slidingly arranged in the pump cavity and is in close contact with the inner wall of the pump cavity, two oil injection channels parallel to the moving direction of the balance disc are arranged on the bottom of the pump cavity, characterized in that: Two plunger pipes are slidably arranged in the oil injection channels, and oil flow assemblies are arranged in the plunger pipes.

2. A novel electromagnetic double pump as claimed in claim 1, wherein: The cross section of the plunger pipe is the same as that of the oil injection channel.

3. A novel electromagnetic double pump as claimed in claim 1, wherein: A plunger sealing ring is arranged between the inner wall of the oil injection channel and the outer wall of the plunger pipe.

4. A new electromagnetic double pump according to claim 3, characterized in that: The plunger sealing ring is fixed on the oil injection channel by a pressing plate.

5. A new electromagnetic double pump according to claim 1, characterized in that: A flow hole is formed in the pressing plate, the plunger pipe penetrates through the flow hole, and the cross section of the flow hole is larger than that of the plunger pipe.

6. A new electromagnetic double pump according to claim 1, characterized in that: The oil flow assembly comprises a first channel formed in the lower part of the plunger pipe, a second channel formed in the middle part of the plunger pipe, the lower end of the first channel is communicated with the oil injection channel, the upper end of the first channel is communicated with the middle part of the second channel, the left and right ends of the second channel are communicated with the pump cavity, and the first channel and the second channel form a T-shaped channel.

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