Oil gas recovery pump

Abstract

The utility model discloses an oil gas recovery pump, and relates to the technical field of oil gas recovery. The oil gas recovery pump comprises a motor and a pump head, the pump head is connected to the motor, the pump head comprises a connecting shell, an input port and an output port are formed in the outer side of the connecting shell, and a second connecting bolt is connected to the inner side of the connecting shell in an inserted mode; the positioning shell sleeves the outer side of the second connecting bolt; a notch is formed in the outer side of the shaft head, a second positioning bolt is inserted into the inner side, in the same direction as the notch, of the shaft head, and the second positioning bolt penetrates through the connecting shell. The oil gas recovery pump is provided with the pump head, the pump head is provided with the connecting shell and the shaft head, the pump ring is arranged through the connecting shell, the blades are arranged on the outer side of the shaft head and inserted into the shaft head, the motor is started to drive the rotor to rotate, the blades slide out through centrifugal force to be tightly attached to the pump ring, and sealing of the ends of the blades and the pump ring is guaranteed; the problem that the sealing performance of the blade and the pump ring is reduced after the blade is abraded is solved, and the service life of the blade is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil gas recovery technical field, concretely is oil gas recovery pump. BACKGROUND

[0002] Gasoline is a kind of volatile liquid, so in the oil tank of car, the space except gasoline is filled with oil gas, when filling gasoline for car, oil gas can volatilize into air, cause environmental pollution and energy waste, in order to change oil gas environmental pollution and energy waste, each gas station generally uses oil gas recovery pump nozzle, oil gas is recovered to oil storage tank when filling for vehicle, to realize the recovery of oil gas, need to install oil gas recovery pump on the inlet pipeline of pump nozzle.

[0003] When the car wants to fill oil, the oil gun of the oil filling machine is inserted into the oil tank, and the newly injected gasoline will squeeze the oil gas in the oil tank and discharge into the air, on the other hand, while the oil gun injects oil into the oil tank of the car, gasoline also continuously volatilizes, forming oil gas diffusing into the air, causing oil gas to diffuse in the gas station. The oil station equipment supporting frequency conversion oil gas recovery pump sold on the market is one pump per nozzle, due to the space limitation of the oil filling machine, it is difficult to install one pump per nozzle for more than 6 oil filling machines, it is difficult to meet the national environmental protection standard, and one pump per nozzle also causes high power consumption of the oil station during operation, resulting in energy waste.

[0004] The diffused oil gas not only brings safety hazards to the gas station, but also causes serious pollution to the air, which is not conducive to the health of people, especially the health of the staff in the gas station, and the installation ratio of one pump per nozzle causes high power consumption. INVENTION CONTENTS

[0005] In view of the deficiencies in the prior art, the utility model provides an oil gas recovery pump, which solves the problems of diffused oil gas not only bringing safety hazards to the gas station, but also causing serious pollution to the air, which is not conducive to the health of people, especially the health of the staff in the gas station, and the installation ratio of one pump per nozzle causing high power consumption.

[0006] To achieve the above purpose, the utility model discloses the following technical scheme: an oil gas recovery pump, comprising a motor and a pump head, the pump head is connected to the motor, characterized in that the pump head comprises:

[0007] A connecting shell is provided with an input port and an output port on the outside, and a second connecting bolt is inserted into the inside of the connecting shell.

[0008] A positioning shell is sleeved on the outside of the second connecting bolt.

[0009] The shaft head is provided with a notch on the outer side, and a second positioning bolt is inserted into the shaft head and the notch in the same direction, and the second positioning bolt penetrates the connecting shell.

[0010] Preferably, the electric motor is provided with a protection shell, and a first connecting bolt is distributed in a circular ring on the outer side of the protection shell, and a first positioning bolt is inserted into the right side of the protection shell.

[0011] Preferably, the electric motor is provided with a fixed shell, and the fixed shell is inserted into the inner side of the protection shell and is threadedly connected with the first connecting bolt.

[0012] Preferably, the electric motor is provided with a stator, and the stator is located on the inner side of the protection shell, and a rotor is arranged on the inner side of the stator, and a fan blade and a first coupling are arranged on the outer side of the rotor, and a first fixing bolt is inserted into the inner side of the fan blade and the first coupling, and the first fixing bolt is inserted into the inner side of the rotor.

[0013] Preferably, a sealing ring is arranged on the inner side of the connecting shell, the sealing ring is tightly connected with the positioning shell, and a pump ring is arranged on the inner side of the connecting shell.

[0014] Preferably, the positioning shell is inserted into the inner side of the fixed shell, and the fan blade is located on the same side.

[0015] Preferably, the shaft head is inserted into the inner side of the positioning shell, a second coupling is arranged on the right side of the shaft head, a sleeve is inserted into the second coupling, a second fixing bolt is inserted into the inner side of the second coupling and the sleeve, the second fixing bolt is inserted into the inner side of the shaft head, a vane is arranged on the outer side of the shaft head, and the vane is tightly connected with the pump ring.

[0016] The utility model discloses an oil gas recovery pump, which has the following beneficial effects: the pump head is provided with a connecting shell and a shaft head, the connecting shell is provided with a pump ring, the outer side of the shaft head is provided with a vane, the vane is inserted into the shaft head, the motor drives the rotor to rotate, the vane slides out and is tightly connected with the pump ring under the pressure of the centrifugal force, the sealing between the vane end and the pump ring is ensured, the problem of the sealing performance of the vane and the pump ring being reduced after the abrasion of the vane is avoided, and the service life of the vane is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 It is a whole structure schematic diagram of the utility model;

[0019] Figure 2 It is a structure schematic view of the motor of the utility model;

[0020] Figure 3 It is a structure schematic view of the pump head of the utility model;

[0021] Figure 4 It is a sectional structure schematic view of the pump head of the utility model.

[0022] In the drawing: 1, motor;11, protective shell;111, first connecting bolt;112, first positioning bolt;12, fixed shell;13, stator;131, rotor;132, fan blade;133, first coupling;134, first fixed bolt;2, pump head;21, connecting shell;211, input port;212, output port;213, second connecting bolt;214, sealing ring;215, pump ring;22, positioning shell;23, shaft head;231, notch;232, second positioning bolt;233, second coupling;234, sleeve;235, second fixed bolt;236, blade. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model more clear, the technical scheme in the embodiments of the utility model is clearly and completely described, obviously, the described embodiments are a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] The oil gas recovery pump provided by the embodiments of the application solves the problems that the diffused oil gas not only brings potential safety hazard to the gas station, but also causes serious pollution to the air, which is not conducive to the health of people, especially the health of the staff in the gas station, and the installation proportion of one gun and one pump causes the problem of high power consumption, and the purpose of recovering oil gas is achieved.

[0025] The utility model discloses an oil gas recovery pump.

[0026] Embodiment one

[0027] According to the drawing, Figures 1-4 As shown, it comprises motor 1 and pump head 2, and the pump head 2 is connected on the motor 1, and the pump head 2 comprises:

[0028] Connecting shell 21, the outer side of connecting shell 21 is provided with input port 211 and output port 212, and the inner side of connecting shell 21 is inserted with second connecting bolt 213;

[0029] Positioning shell 22, positioning shell 22 is sleeved on the outer side of second connecting bolt 213;

[0030] The shaft head 23 is provided with a notch 231 on the outer side, and the second positioning bolt 232 is inserted into the shaft head 23 in the same direction and on the inner side of the notch 231, and the second positioning bolt 232 penetrates the connecting shell 21.

[0031] The pump head 2 is provided, the pump head 2 is provided with the connecting shell 21 and the shaft head 23, the pump ring 215 is arranged on the connecting shell 21, the vane 236 is arranged on the outer side of the shaft head 23, the vane 236 is inserted into the shaft head 23, the motor 1 drives the rotor 131 to rotate, the vane 236 slides out and is pressed tightly to the pump ring 215 by the centrifugal force, the sealing performance of the vane 236 and the pump ring 215 is ensured, the problem that the sealing performance is reduced after the vane 236 is worn is avoided, and the service life of the vane 236 is improved.

[0032] Further, the motor 1 is provided with the protection shell 11, the first connecting bolt 111 is arranged on the outer side of the protection shell 11 in a circular ring, and the first positioning bolt 112 is inserted into the right side of the protection shell 11.

[0033] Further, the motor 1 is provided with the fixed shell 12, the fixed shell 12 is inserted into the inner side of the protection shell 11 and is threadedly connected with the first connecting bolt 111.

[0034] In particular, the motor 1 is provided with the stator 13, the stator 13 is located on the inner side of the protection shell 11, the rotor 131 is arranged on the inner side of the stator 13, the fan blade 132 and the first coupling 133 are arranged on the outer side of the rotor 131, the first fixing bolt 134 is inserted into the inner side of the rotor 131, and the first fixing bolt 134 is inserted into the inner side of the rotor 131.

[0035] In particular, the connecting shell 21 is provided with the sealing ring 214 on the inner side, the sealing ring 214 is tightly connected with the positioning shell 22, and the pump ring 215 is arranged on the inner side of the connecting shell 21.

[0036] It needs to be particularly emphasized that the positioning shell 22 is inserted into the inner side of the fixed shell 12 and the fan blade 132 is located on the same side.

[0037] Embodiment two

[0038] According to the drawings Figures 1-4 As shown, the motor 1 and the pump head 2 are arranged, the pump head 2 is connected to the motor 1, and the pump head 2 comprises:

[0039] The connecting shell 21 is provided with the input port 211 and the output port 212 on the outer side, and the second connecting bolt 213 is inserted into the inner side of the connecting shell 21.

[0040] The positioning shell 22 is sleeved on the outer side of the second connecting bolt 213.

[0041] The shaft head 23 is provided with a notch 231 on the outer side, and the shaft head 23 is provided with a second positioning bolt 232 on the inner side in the same direction as the notch 231, and the second positioning bolt 232 penetrates the connecting shell 21.

[0042] It should be particularly emphasized that the shaft head 23 is inserted into the inner side of the positioning shell 22, the shaft head 23 is provided with a second coupling 233 on the right side, the second coupling 233 is inserted with a sleeve 234, the second coupling 233 and the sleeve 234 are inserted with a second fixing bolt 235 on the inner side, the second fixing bolt 235 is inserted into the inner side of the shaft head 23, the shaft head 23 is provided with a blade 236 on the outer side, and the blade 236 is tightly connected with the pump ring 215.

[0043] Working principle:

[0044] The motor 1 is started to drive the rotor 131 to rotate. The blade 236 slides out and is pressed against the pump ring 215 by centrifugal force, so as to ensure the sealing of the end of the blade 236 and the pump ring 215. When the rotor 131 rotates, the elementary volume (the volume surrounded by the rotor 131, the pump ring 215 and the blade 236) on the suction side continuously increases, and the gas is sucked into the elementary volume. When the elementary volume reaches the maximum value, the elementary volume is separated from the suction port and then connected with the discharge port. The rotor 131 continues to rotate, and the elementary volume gradually becomes smaller, and the gas is discharged. The rotor 131 rotates one revolution, the blade 236 reciprocates in the groove once, each elementary volume becomes large and small once, and the suction and discharge process is completed once.

[0045] The basic principle and main features of the utility model and the advantages of the utility model are shown and described. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can also have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. An oil and gas recovery pump, comprising an electric motor (1) and a pump head (2), wherein the pump head (2) is connected to the electric motor (1), characterized in that, The pump head (2) includes: A connecting shell (21) is provided with an input port (211) and an output port (212) on the outside of the connecting shell (21), and a second connecting bolt (213) is inserted into the inside of the connecting shell (21). Positioning shell (22), which is sleeved on the outside of the second connecting bolt (213); Shaft head (23), the shaft head (23) has a notch (231) on the outside, and a second positioning bolt (232) is inserted into the shaft head (23) and the notch (231) in the same direction. The second positioning bolt (232) passes through the connecting shell (21). The motor (1) is provided with a stator (13), the stator (13) is located inside the protective shell (11), the rotor (131) is provided inside the stator (13), the fan blade (132) and the first coupling (133) are provided outside the rotor (131), and the first fixing bolt (134) is inserted into the inner side of the fan blade (132) and the first coupling (133), and the first fixing bolt (134) is inserted into the inner side of the rotor (131); A sealing ring (214) is provided on the inner side of the connecting shell (21), and the sealing ring (214) is in close contact with the positioning shell (22). A pump ring (215) is provided on the inner side of the connecting shell (21). The shaft head (23) is inserted into the inner side of the positioning housing (22). A second coupling (233) is provided on the right side of the shaft head (23). A kit (234) is inserted into the second coupling (233). A second fixing bolt (235) is inserted into the inner side of the second coupling (233) and the kit (234). The second fixing bolt (235) is inserted into the inner side of the shaft head (23). A blade (236) is provided on the outer side of the shaft head (23). The blade (236) is in close contact with the pump ring (215).

2. The oil and gas recovery pump according to claim 1, characterized in that, The motor (1) is provided with a protective shell (11), and a first connecting bolt (111) is distributed in a ring on the outer side of the protective shell (11), and a first positioning bolt (112) is inserted into the right side of the protective shell (11).

3. The oil and gas recovery pump according to claim 1, characterized in that, The motor (1) is provided with a fixed shell (12), which is inserted into the inner side of the protective shell (11) and threadedly connected to the first connecting bolt (111).

4. The oil and gas recovery pump according to claim 1, characterized in that, The positioning shell (22) is inserted into the inside of the fixed shell (12) and is located on the same side as the fan blade (132).

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