Oil gas recovery vacuum pump with high safety

Abstract

The utility model discloses an oil-gas recovery vacuum pump with high safety. The oil-gas recovery vacuum pump comprises a pump body, the air inlet channel is arranged on the pump body; the air outlet channel is arranged on the pump body; the motor is matched with the pump body; the cable is matched with the motor; the protection mechanism is matched with the cable; the protection mechanism comprises a mounting sleeve arranged on the motor, a bolt screwed in the mounting sleeve, a guide sleeve arranged at the end part of the bolt, a control sleeve which sleeves and is screwed on the outer wall of the guide sleeve, an elastic connecting plate arranged on the inner wall of the guide sleeve, an elastic clamping plate arranged on the elastic connecting plate and a pressing plate arranged on the inner wall of the control sleeve; the elastic clamping plate is bent in an arc shape, the pressing plate can make contact with the outer wall of the elastic clamping plate, the elastic clamping plate can be attached to the outer wall of the cable, and the bolt is provided with a through hole for the cable to penetrate through.

Description

Technical Field

[0001] This utility model belongs to the field of vacuum pump technology, and in particular relates to a high-safety oil and gas recovery vacuum pump. Background Technology

[0002] The oil and gas recovery vacuum pump consists of a pump body and an explosion-proof motor. The pump body has a pump shaft, one end of which is connected to a rotor. The rotor has sliding blades, and the other end of the pump shaft is connected to the motor shaft. The rotor rotates at high speed under the drive of the explosion-proof motor and always slides along the inner wall of the pump body. This causes the blades to slide back and forth along the radial grooves of the rotor and always be in contact with the inner wall of the pump body, dividing the pump body into several variable-volume chambers. The volume change of these chambers creates an atmospheric pressure difference. When the pressure inside the pump body is less than the standard atmospheric pressure, a negative pressure (also known as a vacuum) is created, generating gas flow and thus achieving the cycle of intake and exhaust.

[0003] Patent CN202120938938.3 discloses an oil and gas recovery vacuum pump, which includes a pump body, a motor and a controller. The controller and the motor are independently set up and are connected to each other. The motor and the pump body are set in an explosion-proof area, and the controller is set in a non-explosion-proof area. That is, the pump body, the motor and the controller are all installed in the fuel dispenser.

[0004] In the aforementioned patent, the controller and motor are connected by a cable, but the cable is not equipped with a protective mechanism, and external pulling may cause the cable to fall off or break. Utility Model Content

[0005] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0006] To address the technical problems mentioned in the background section, some embodiments of this application provide a highly safe oil and gas recovery vacuum pump, including:

[0007] Pump body;

[0008] The air intake passage is located on the pump body;

[0009] The air outlet is located on the pump body;

[0010] The motor is matched with the pump body;

[0011] Cable, used in conjunction with the motor;

[0012] Protective mechanism, used in conjunction with the cable;

[0013] The protective mechanism includes a mounting sleeve on the motor, a bolt screwed into the mounting sleeve, a guide sleeve on the end of the bolt, a control sleeve screwed onto the outer wall of the guide sleeve, an elastic connecting plate on the inner wall of the guide sleeve, an elastic clamping plate on the elastic connecting plate, and a pressure plate on the inner wall of the control sleeve. The elastic clamping plate is curved in an arc shape, the pressure plate can contact the outer wall of the elastic clamping plate, the elastic clamping plate can fit against the outer wall of the cable, and the bolt has a through hole for the cable to pass through.

[0014] Preferably, the elastic clamping plate is provided with multiple elastic protrusions.

[0015] Preferably, the pressure plate has an arc-shaped curved surface.

[0016] Preferably, the outer wall of the control sleeve is provided with anti-slip protrusions.

[0017] Preferably, the protective mechanism further includes a push plate sleeved on the outer wall of the cable, an elastic clamping sleeve sleeved on the outer wall of the cable, and a baffle sleeved on the outer wall of the cable. The elastic clamping sleeve, the baffle, and the push plate can all slide up and down relative to the inner wall of the mounting sleeve. The inner wall of the mounting sleeve is provided with a step that cooperates with the baffle.

[0018] Preferably, the baffle is provided with a clamping sleeve, and the elastic clamping sleeve can enter the clamping sleeve.

[0019] Preferably, the inner wall of the clamping sleeve is chamfered.

[0020] Preferably, the push plate, the elastic clamping sleeve, and the baffle are arranged in sequence from top to bottom.

[0021] This application provides a highly safe oil and gas recovery vacuum pump that prevents external force damage to cables. Attached Figure Description

[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0023] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0024] In the attached diagram:

[0025] Figure 1 This is a schematic diagram of the structure of this utility model.

[0026] Figure 2 This is a cross-sectional view of the present invention.

[0027] Figure 3 for Figure 2 A magnified view of point A.

[0028] Figure 4 for Figure 2 Enlarged view of point B.

[0029] Figure 5 This is a partial structural diagram of the protective mechanism of this utility model.

[0030] Reference numerals: 1. Pump body; 11. Pump head; 12. Pump base; 13. Flower-shaped impeller; 14. Cylinder liner; 2. Inlet passage; 3. Outlet passage; 4. Motor; 5. Cable; 61. Mounting sleeve; 62. Bolt; 621. Through hole; 63. Guide sleeve; 64. Control sleeve; 641. Anti-slip protrusion; 65. Elastic connecting plate; 66. Elastic clamping plate; 67. Pressure plate; 671. Arc-shaped curved surface; 68. Elastic protrusion; 71. Push plate; 72. Elastic clamping sleeve; 73. Baffle; 74. Clamping sleeve. Detailed Implementation

[0031] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0032] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0033] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0034] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0035] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0036] like Figure 1-5As shown, a high-safety oil and gas recovery vacuum pump includes a pump body 1, an inlet channel 2, an outlet channel 3, a motor 4, a cable 5, and a protective mechanism. The pump body 1 includes a pump head 11, a pump base 12, a flower-shaped impeller 13, and a cylinder liner 14. The pump head 11 and the pump base 12 are connected by a screw. The cylinder liner 14 is located inside the pump head 11 and the pump base 12. The flower-shaped impeller 13 cooperates with the cylinder liner 14 and is fixed on the output shaft of the motor 4. The inlet channel 2 and the outlet channel 3 are located on the pump head 11. The cable 5 is connected to the motor 4.

[0037] Specifically, the protective mechanism includes a mounting sleeve 61, a bolt 62, a guide sleeve 63, a control sleeve 64, an elastic connecting plate 65, an elastic clamping plate 66, and a pressure plate 67. The mounting sleeve 61 is fixed to the motor 4 and allows the cable 5 to pass through. The bolt 62 is screwed onto the inner wall of the mounting sleeve 61 and has a through hole 621 for the cable 5 to pass through. One end of the guide sleeve 63 is fixed to the end of the bolt 62. The control sleeve 64 is fitted and screwed onto the outer wall of the guide sleeve 63. The elastic connecting pieces are evenly fixed to the inner wall of the guide sleeve 63. The elastic clamping plates 66 are respectively fixed to the elastic connecting plate 65. At the connector end, the elastic clamping plate 66 is curved in an arc shape and can fit against the outer wall of the cable 5. The pressure plate 67 is fixed on the inner wall of the control sleeve 64 and can contact the outer wall of the elastic clamping plate 66. By rotating the control sleeve 64, the pressure plate 67 is moved upward. During the upward movement of the pressure plate 67, the elastic clamping plate 66 is pushed towards the cable 5, thereby pressing the elastic clamping plate 66 against the outer wall of the cable 5. Thus, through the synergistic action of the mounting sleeve 61, bolt 62, guide sleeve 63, control sleeve 64, and elastic clamping plate 66, a dynamic clamping mechanism is formed. When the control sleeve 64 is rotated, the pressure plate 67 pushes the elastic clamping plate 66 to fit against the cable 5. The curved elastic clamping plate 66 applies pressure evenly, and combined with the limiting of the cable 5 by the through hole 621 of the bolt 62, multi-point fixation of the cable 5 is achieved. This design effectively disperses the tensile stress on cable 5 from external forces, preventing cable 5 from falling off or breaking due to vibration or external impact, significantly improving the stability and safety of cable 5 connection, and is suitable for high-risk environments such as oil and gas recovery.

[0038] As a preferred embodiment, the elastic clamping plate 66 is provided with multiple elastic protrusions 68, and the pressure plate 67 is provided with an arc-shaped curved surface 671. The multiple elastic protrusions 68 provided on the elastic clamping plate 66 further enhance the clamping effect by increasing the contact area with the outer wall of the cable 5 and the local friction. The elastic characteristics of the protrusions can adapt to cables 5 of different diameters, ensuring uniform distribution of clamping force, while reducing wear on the surface of the cable 5 caused by long-term clamping, thus balancing firmness and protection.

[0039] In other embodiments, the outer wall of the control sleeve 64 is provided with anti-slip protrusions 641. The anti-slip protrusions on the outer wall of the control sleeve 64 increase the friction during operation, thereby improving the convenience and reliability of rotation control.

[0040] In other embodiments, the protective mechanism further includes a push plate 71, an elastic clamping sleeve 72, a baffle 73, and a clamping sleeve 74. The push plate 71, the elastic clamping sleeve 72, and the baffle 73 are sequentially fitted around the cable 5 from top to bottom. The elastic clamping sleeve 72, the baffle 73, and the push plate 71 can all slide up and down relative to the inner wall of the mounting sleeve 61. The inner wall of the mounting sleeve 61 is provided with a step 731 that cooperates with the baffle 73. The elastic clamping sleeve 72 is fixed on the baffle 73, and its inner wall is chamfered. By rotating the bolt 62, the push plate 71 can be pushed down, thereby pushing the elastic clamping sleeve 72 and the baffle 73 down. When the baffle 73 moves to the step, the bolt 62 is rotated again to press the elastic clamping sleeve 72 into the elastic clamping sleeve 72, so that the elastic clamping sleeve 72 clamps the cable 5. The double clamping mechanism can cope with external force impacts from different directions and greatly improve the protection redundancy.

[0041] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A high-safety oil and gas recovery vacuum pump, comprising: a pump body; an air inlet channel provided on the pump body; an air outlet channel provided on the pump body; a motor cooperating with the pump body; a cable cooperating with the motor; a protection mechanism cooperating with the cable; characterized in that the protection mechanism comprises a mounting sleeve provided on the motor, a bolt screwed in the mounting sleeve, a guide sleeve provided on the end of the bolt, a control sleeve sleeved on the outer wall of the guide sleeve, an elastic connecting plate provided on the inner wall of the guide sleeve, an elastic clamping plate provided on the elastic connecting plate, and a pressing plate provided on the inner wall of the control sleeve, the elastic clamping plate is arc-shaped, the pressing plate can contact the outer wall of the elastic clamping plate, the elastic clamping plate can be attached to the outer wall of the cable, and the bolt is provided with a through hole for the cable to pass through.

2. The safety enhanced oil vapor recovery vacuum pump of claim 1, wherein: A plurality of elastic protrusions are provided on the elastic clamping plate.

3. The safety enhanced oil vapor recovery vacuum pump of claim 1, wherein: The pressing plate is provided with an arc-shaped curved surface.

4. The safety enhanced oil vapor recovery vacuum pump of claim 1, wherein: The outer wall of the control sleeve is provided with anti-slip protrusions.

5. The safety enhanced oil vapor recovery vacuum pump of claim 1, wherein: The protection mechanism further comprises a push plate sleeved on the outer wall of the cable, an elastic clamping sleeve sleeved on the outer wall of the cable, and a baffle sleeved on the outer wall of the cable, the elastic clamping sleeve, the baffle, and the push plate can slide up and down relative to the inner wall of the mounting sleeve, and the inner wall of the mounting sleeve is provided with a step cooperating with the baffle.

6. The safety enhanced oil vapor recovery vacuum pump of claim 5, wherein: The baffle is provided with a clamping sleeve, and the elastic clamping sleeve can enter the clamping sleeve.

7. The safety enhanced oil vapor recovery vacuum pump of claim 6, wherein: The inner wall of the clamping sleeve is chamfered.

8. The safety enhanced oil vapor recovery vacuum pump of claim 5, wherein: The push plate, the elastic clamping sleeve, and the baffle are sequentially arranged from top to bottom.

Images