CN108131268A - A kind of respiratory pump - Google Patents

Abstract

The invention relates to a breathing pump, which includes left and right end covers and a pump body, and the left and right end covers are sealed and connected to the pump body. It is characterized in that, one end of the pump body is provided with a fixed piston connected to a constant voltage DC power supply. The other end is provided with a moving piston connected to an alternating voltage power supply, the fixed piston generates a stable magnetic field, and the moving piston generates an alternating magnetic field; under the action of the magnetic field force, the moving piston moves left and right to form positive and negative Alternate pressure to achieve the purpose of oil suction and pressure oil. One end of the moving piston is connected to a telescopic film, and the telescopic film is fixed to the pump body through a transitional end cover; the pump body and the telescopic film form a volume-variable oil chamber. This breathing pump not only has no leakage, but also does not need an external power device, so the production efficiency is high.

Description

a breathing pump

technical field

The invention belongs to the technical field of pumps, in particular to the technical field of volumetric pumps, and in particular to a breathing pump.

Background technique

At present, the general pump body mainly adopts piston type, vane type, plunger type and other structures. These structures generally require an external power source. Due to the external power source, there are power devices such as transmission mechanisms. Existence, energy loss and leakage problems will occur, which reduces production efficiency and greatly reduces the efficiency of the pump.

Contents of the invention

In order to solve the above-mentioned technical problems, the present invention designs a breathing pump, which not only has no leakage, but also does not require an external power device, and has high production efficiency.

In order to solve the above-mentioned technical problems, the present invention adopts the following scheme:

A breathing pump, comprising left and right end covers and a pump body, the left and right end covers are in sealing connection with the pump body, one end of the pump body is provided with a fixed piston connected to a constant voltage DC power supply, and the other end is provided with an alternating current The moving piston connected to a voltage power supply, the fixed piston generates a stable magnetic field, and the moving piston generates an alternating magnetic field; under the action of the magnetic field force, the moving piston performs left and right telescopic movements to form positive and negative alternating pressures to reach the pump. The purpose of sending oil.

Further, one end of the movable piston is connected to a telescopic film, and the telescopic film is fixed to the pump body through an intermediate cover; the pump body and the telescopic film form a volume-variable oil chamber.

Further, the telescopic film is connected with the moving piston through a connecting piece.

Further, among the left and right end caps, the end caps close to the moving piston have a groove at their inner ends, leaving a certain distance for the telescoping movement of the moving piston.

Further, one or more chambers are distributed in the pump body, and a fixed piston and a moving piston are arranged in each chamber; an oil inlet is arranged on an outer wall plate at one end of each chamber, and an oil inlet is arranged on the outer wall plate at the other end. There is an oil outlet on it.

Further, a one-way valve is provided at the oil inlet and the oil outlet.

Further, the outer surface of one end of the pump body is provided with a corresponding sealed oil passage and a general oil inlet, and the outer surface of the other end is provided with a corresponding sealed oil passage and a general oil outlet. The oil ports communicate with the oil inlet and the oil outlet of each chamber respectively through corresponding sealed oil passages.

Further, the outer wall plate of the chamber is provided with a slide rail structure, and the fixed piston and the moving piston are respectively provided with a slide block structure correspondingly, and the slide rail structure cooperates with the corresponding slide block structure.

Further, when there are multiple chambers, each of the chambers is composed of an outer side wall, an inner side wall and two side partitions; slide rails are arranged on the outer side wall and the inner side wall of the chamber structure, the fixed piston and the moving piston are respectively provided with a slider structure correspondingly, and the slide rail structure cooperates with the corresponding slider structure.

Further, electrodes are connected to the inner wall of the slide rail structure of the outer wall plate, and the electrodes are electrically connected to the corresponding terminals on the outer surface of the pump body; there are at least two pairs of the terminals, one of which corresponds to a constant Voltage DC power supply, and another pair or pairs correspond to the corresponding AC voltage power supply.

Further, the fixed piston includes a fixed piston body, and the moving piston includes a moving piston body. Both the fixed piston body and the moving piston body are equipped with excitation coils, and the excitation coils pass through the corresponding electrodes of the fixed piston or the moving piston. The electrodes and the corresponding electrodes on the inner wall of the slide rail structure are electrically connected to the corresponding terminals on the outer surface of the pump body.

Further, the fixed piston electrode is arranged on the slider structure outside the fixed piston body, and the moving piston electrode is arranged on the slider structure outside the moving piston body.

Further, the slide rail structure is a "T"-shaped chute structure; the slider structure is a "T"-shaped slider structure; the electrodes of the slide rail structure are arranged on the lower sides of the two shoulders of the "T"-shaped chute , the fixed piston electrode or the movable piston electrode is arranged on the lower side of the two shoulders of the corresponding "T" type slider.

Further, the pump body is a multi-chamber cylindrical pump body, and the chambers are arranged in the circumferential direction and extended in the axial direction.

Further, when there are multiple chambers, the multiple chambers are divided into two or three groups to form a relay-type suction oil circuit.

Further, sealing rings are respectively provided between the pump body and the left and right end covers.

The breathing pump has the following beneficial effects:

(1) The present invention does not need to be connected to a power device such as a transmission mechanism, and has high production efficiency and no leakage.

(2) In the present invention, the volume-variable oil chamber is composed of the pump body and the stretchable film. When the external movable piston terminal is connected to an alternating voltage, the movable piston inside the pump body generates an alternating magnetic field, and the external fixed piston terminal is connected to a constant voltage. Voltage DC power supply, the fixed piston produces a stable magnetic field. Under the action of the magnetic field force, the moving piston pushes the telescopic film, or pulls back the telescopic film, thereby changing the volume of the pump body cavity, forming positive and negative alternating pressure, achieving the purpose of oil suction and pressure oil, and opening up a new technology of breathing pump .

(3) In the present invention, since each chamber is independent, multiple chambers can be divided into two or three groups, and the two or three groups of moving piston groups alternately reciprocate to form a relay-type suction oil circuit. The total oil inlet and oil suction port form a continuous suction pressure oil circuit, which further improves production efficiency.

Description of drawings

Fig. 1: Exploded view of a breathing pump in an embodiment of the present invention;

Figure 2: a front view and a partial enlarged view of the pump body in an embodiment of the present invention;

Fig. 3: the left side view of the pump body in an embodiment of the present invention;

Figure 4: A-A sectional view of Figure 2;

Figure 5: Schematic diagram of the structure of the moving piston in an embodiment of the present invention;

Fig. 6: Schematic diagram of the structure of the fixed piston in an embodiment of the present invention.

Explanation of reference signs:

1—left end cover; 2—left sealing ring; 3—fixed piston; 31—fixed piston electrode; 4—one-way valve; 5—pump body; 6—fixed piston terminal; 7—moving piston terminal; 8—moving Piston; 81—moving piston electrode; 9—expandable film; 10—coupling piece; 11—excessive end cover; 12—right sealing ring; 13—right end cover; 14—general oil inlet; 15—general oil outlet; 16 —Oil inlet; 17—Oil outlet; 18—Electrode; 19—Seal oil passage.

Detailed ways

Below in conjunction with accompanying drawing, the present invention will be further described:

1 to 6 show an embodiment of the breathing pump of the present invention. Fig. 1 is an exploded view of the breathing pump in this embodiment.

As shown in Figure 1, the breathing pump in the present embodiment comprises a left end cover 1, a pump body 5 and a right end cover 13, and the left end cover 1 and the right end cover 13 are respectively sealed and connected with the pump body 5; The fixed piston 3 connected to a constant voltage DC power supply is provided with a moving piston 8 connected to an alternating voltage power supply at the other end; the fixed piston 3 generates a stable magnetic field, and the moving piston 8 generates an alternating magnetic field; under the action of the magnetic field force, the moving piston 8 Perform left and right telescopic movements to form positive and negative alternating pressures to achieve the purpose of oil suction and pressure oil pumping.

Preferably, one end of the moving piston 8 is provided with a telescopic film 9, the telescopic film 9 is connected with the moving piston 8 through a connecting piece 10, and the telescopic film 9 is fixedly connected with the pump body 5 through a transition end cover 11, as shown in FIG. 1 . The pump body 5 and the telescopic membrane 9 form a volume-variable oil chamber.

Preferably, the end cover close to the moving piston 8 among the left and right end covers has a groove at its inner end, leaving a certain distance for the moving piston 8 to expand and contract. In this embodiment, the inner end of the right end cover 13 is provided with an annular groove, and the annular groove has a certain depth to allow a certain distance for the expansion and contraction of the moving piston 8, as shown in FIG. 1 .

As shown in FIG. 1 , sealing rings are respectively provided between the pump body 5 and the left and right end covers to further enhance the sealing effect. In this embodiment, a left sealing ring 2 is provided between the left end cover 1 and the pump body 5 , and a right sealing ring 12 is provided between the pump body 5 and the right end cover 13 .

Preferably, one or more chambers are distributed in the pump body 5, and a fixed piston 3 and a moving piston 8 are arranged in each chamber; an oil inlet 16 is arranged on the outer wall plate at one end of each chamber, and another An oil outlet 17 is arranged on the outer wall plate at one end, as shown in FIG. 1 , FIG. 2 and FIG. 4 . Fig. 2 is a front view and a partially enlarged view of the pump body in this embodiment, and Fig. 4 is a sectional view along line A-A of Fig. 2 . In this embodiment, there are six chambers distributed in the pump body 5 .

Preferably, a one-way valve 4 is provided at both the oil inlet 16 and the oil outlet 17, as shown in FIG. 1 .

Preferably, pump hubs are respectively provided on the outer surfaces of both ends of the pump body 5. The pump hub at one end of the pump body 5 is provided with a corresponding sealing oil passage 19 and a general oil inlet 14, and the pump hub at the other end is provided with a corresponding The corresponding sealed oil passage 19 and the total oil outlet 15, the total oil inlet 14 and the total oil outlet 15 communicate with the oil inlet 16 and the oil outlet 17 of each chamber through the corresponding sealed oil passage 19, as As shown in Fig. 3 and Fig. 4, Fig. 3 is an appearance view of the pump body in this embodiment.

Preferably, the outer wall plate of the chamber is provided with a slide rail structure, and the fixed piston and the movable piston are respectively provided with a slide block structure correspondingly, and the slide rail structure cooperates with the corresponding slide block structure.

Preferably, when there are multiple chambers, each chamber is composed of an outer side wall, an inner side wall and two side partitions. Both the outer wall plate and the inner wall plate of the chamber are provided with a slide rail structure, and the fixed piston 3 and the movable piston 8 are respectively provided with a slide block structure, and the slide rail structure cooperates with the corresponding slide block structure. ,As shown in Figure 1. In this embodiment, two slide rail structures are arranged on the outer wall plate and the inner wall plate of each chamber, and two rows of slider structures are arranged on the outer surface and the inner marking surface of the fixed piston 3 and the moving piston 8 .

Preferably, an electrode 18 is connected to the inner wall of the slide rail structure of the outer wall plate, and the electrode is electrically connected to the corresponding terminal on the outer surface of the pump body 5; there are at least two pairs of the terminal, one of which is a fixed piston Terminal 6 is correspondingly connected to a constant voltage DC power supply, and the other pair or pairs are movable piston terminals 7 to be correspondingly connected to an alternating voltage power supply, as shown in Fig. 1 and Fig. 2 .

Preferably, the fixed piston 3 and the moving piston 8 include a fixed piston body and a moving piston body, and both the fixed piston body and the moving piston body are equipped with excitation coils, as shown in Figure 5 and Figure 6, Figure 5 is a moving piston body in this embodiment Schematic diagram of the structure of the piston, FIG. 6 is a schematic diagram of the structure of the fixed piston in this embodiment. The excitation coil is electrically connected to the corresponding terminal on the outer surface of the pump body 5 through the corresponding fixed piston electrode 31 or the movable piston electrode 81 , the corresponding electrode 18 on the inner wall of the slide rail structure, as shown in FIG. 1 .

In this embodiment, the slide rail structure is a "T"-shaped chute structure; the slider structure is a "T"-shaped slider structure; the electrodes of the slide rail structure are arranged on both sides of the "T"-shaped chute On the lower side of the shoulder, the fixed piston electrode or the movable piston electrode is arranged on the lower side of the two shoulders of the corresponding "T"-shaped slider.

Preferably, the pump body 5 is a multi-chamber cylindrical pump body, and each chamber is arranged circumferentially and axially.

Preferably, when there are multiple chambers, the multiple chambers are divided into two or three groups to form a relay-type suction oil circuit. In this embodiment, there are six chambers, and three chambers distributed at intervals are regarded as a group, which are divided into two groups. The moving pistons of the two groups alternately reciprocate to form a relay-type pressure suction oil circuit.

In the present invention, the volume-variable oil chamber is composed of the pump body and the stretchable film. When the external movable piston terminal is connected to an alternating voltage, the movable piston inside the pump body generates an alternating magnetic field, and the external fixed piston terminal is connected to a constant voltage DC Power supply, the fixed piston produces a stable magnetic field. Under the action of the magnetic field force, the moving piston pushes the telescopic film, or pulls back the telescopic film, thereby changing the volume of the inner cavity of the pump, forming positive and negative alternating pressures, and achieving the purpose of oil absorption and pressure. Since each cavity is independent, three alternate moving pistons can be set as a group to form a relay-type suction oil circuit, which forms a continuous suction oil circuit through the general oil inlet and oil suction port, which improves production. efficiency.

The present invention does not need to be connected to a power device such as a transmission mechanism, and has high production efficiency and no leakage.

Above, the present invention has been exemplarily described in conjunction with the accompanying drawings. Obviously, the realization of the present invention is not limited by the above-mentioned manner, as long as various improvements of the method concept and technical solutions of the present invention are adopted, or the present invention is implemented without improvement. The ideas and technical schemes directly applied to other occasions are within the protection scope of the present invention.

Claims (10)

1. A breathing pump, comprising left and right end caps and a pump body, the left and right end caps are hermetically connected to the pump body, characterized in that one end of the pump body is provided with a fixed piston connected to a constant voltage DC power supply, and the other One end is provided with a moving piston connected to an alternating voltage power supply. The fixed piston generates a stable magnetic field, and the moving piston generates an alternating magnetic field. Change the pressure to achieve the purpose of pumping oil. 2. The breathing pump according to claim 1, wherein one end of the moving piston is connected to a telescopic film, and the telescopic film is fixed to the pump body through a transitional end cap; the pump body and the telescopic film are A variable volume oil chamber is formed. 3. The breathing pump according to claim 1 or 2, characterized in that, among the left and right end caps, the end caps close to the moving piston have a groove at their inner end to provide space for the telescopic movement of the moving piston. There is a certain distance. 4. The breathing pump according to any one of claims 1 to 3, wherein one or more chambers are distributed in the pump body, each chamber is provided with a fixed piston and a moving piston; each chamber One end of the chamber is provided with an oil inlet on the outer wall, and the other end of the outer wall is provided with an oil outlet; the oil inlet and the oil outlet are both provided with a one-way valve. 5. The breathing pump according to claim 4, characterized in that, the outer surface of one end of the pump body is provided with a corresponding sealing oil passage and a general oil inlet, and the outer surface of the other end is provided with a corresponding sealing oil passage and The main oil outlet, the main oil inlet and the main oil outlet are respectively communicated with the oil inlet and the oil outlet of each chamber through corresponding sealed oil passages. 6. The breathing pump according to any one of claims 4 to 5, wherein a slide rail structure is provided on the outer wall of the chamber, and sliding rail structures are provided on the fixed piston and the moving piston correspondingly. The block structure, the slide rail structure works with the corresponding slider structure. 7. The breathing pump according to claim 6, wherein when there are multiple chambers, each of said chambers is made up of outer sidewalls, inner sidewalls and both side partitions; said chamber Both the outer wall panel and the inner wall panel are provided with slide rail structures. 8. The breathing pump according to claim 6, characterized in that electrodes are connected inside the slide rail structure of the outer wall plate, and the electrodes are electrically connected to corresponding terminals on the outer surface of the pump body; There are at least two pairs of connecting terminals, one pair corresponds to a constant voltage DC power supply, and the other pair or pairs correspond to a corresponding AC voltage power supply. 9. The breathing pump according to claim 8, wherein the fixed piston includes a fixed piston body, the moving piston includes a moving piston body, and both the fixed piston body and the moving piston body are equipped with excitation coils, The excitation coil is electrically connected to the corresponding connecting terminal on the outer surface of the pump body through the corresponding fixed piston electrode or the movable piston electrode, and the corresponding inner electrode of the slide rail structure; the fixed piston electrode is arranged on the fixed piston electrode. On the slider structure outside the piston body, the moving piston electrode is arranged on the slider structure outside the moving piston body. 10. The breathing pump according to any one of claims 4 to 8, wherein when there are multiple chambers, the multiple chambers are divided into two or three groups to form a relay-type suction oil circuit .