Lateral outgoing line explosion suppression type submersible sewage electric pump

Abstract

The utility model relates to the technical field of electric pumps, in particular to a side-outgoing-line explosion-proof type submersible sewage electric pump which comprises a side-outgoing-line submersible sewage electric pump connected with an air pressure balance structure with adjustable pressure. According to the utility model, the pressure-adjustable air pressure balance structure is arranged in the side-outlet explosion-proof submersible sewage electric pump, so that the pressure cylinder, the movable piston, the pressure spring, the movable connecting plate, the cylinder end cover, the adjusting screw rod and the interaction among the components in the pressure-adjustable air pressure balance structure are utilized; according to the side-outgoing-line explosion-proof type submersible sewage electric pump, the air pressure can reach the balance design, so that in the using process of the side-outgoing-line explosion-proof type submersible sewage electric pump, the air pressure in the side-outgoing-line submersible sewage electric pump can be adjusted according to the using requirement of the side-outgoing-line submersible sewage electric pump, the protection device is not prone to burst in the using process, the service life of the device is prolonged, and the service life of the device is prolonged. Therefore, the problem that the air pressure in the submersible sewage electric pump cannot be adjusted is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric pumps, in particular to a side-outlet flameproof submersible sewage electric pump. Background Art

[0002] When currently using submersible sewage electric pumps, when the internal air pressure of the device is too high, the gas cannot be automatically discharged to the outside, so that the internal and external air pressures are mostly in a state of balanced state, causing the device to burst during use, thereby reducing the service life of the device. To address the above problems, it is necessary to provide a side-outlet flameproof submersible sewage electric pump. Utility Model Content

[0003] The utility model aims to provide a side-outlet flameproof submersible sewage electric pump to solve the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A side-outlet explosion-proof submersible sewage electric pump, comprising a side-outlet submersible sewage electric pump, wherein the side-outlet submersible sewage electric pump is connected to a pressure-adjustable air pressure balance structure;

[0006] The pressure-adjustable air pressure balancing structure includes a pressure cylinder, which is connected to a submersible sewage electric pump with a side outlet. An air inlet is provided on the side wall of the bottom of the pressure cylinder, and the other end of the air inlet is connected to an air outlet pipe in the inner cavity of the submersible sewage electric pump with a side outlet through a conduit. An air guide pipe is provided on the side wall of the pressure cylinder, and a movable piston is provided in the inner cavity of the pressure cylinder. A pressure spring is connected in the inner cavity of the pressure cylinder and on the end surface of the movable piston, a movable connecting plate is connected in the inner cavity of the pressure cylinder and on the end surface of the pressure spring, a cylinder end cover is connected to the pressure cylinder, an adjusting screw is connected on the end surface of the movable connecting plate and on the cylinder end cover, and a rotating knob is connected on the end surface of the adjusting screw.

[0007] As a preferred solution of the utility model, the connection mode between the pressure cylinder and the movable piston is a sliding connection.

[0008] As a preferred solution of the utility model, the matching mode between the inner cavity of the pressure cylinder and the side wall of the movable connecting plate is a clearance fit.

[0009] As a preferred solution of the utility model, the adjusting screw is connected to the end face of the movable connecting plate through a bearing seat, wherein the connection mode of the adjusting screw and the bearing seat is a rotational connection.

[0010] As a preferred solution of the utility model, a threaded hole is arranged on the cylinder end cover and corresponds to the adjusting screw, wherein the adjusting screw and the threaded hole are connected by a threaded connection.

[0011] As a preferred solution of the utility model, the connection method of the pressure cylinder and the cylinder end cover is a threaded connection.

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

[0013] 1. In the utility model, a pressure-adjustable air pressure balance structure is provided in the side-outlet flameproof submersible sewage electric pump, so that the air pressure can be balanced by utilizing the interaction between the pressure cylinder, the movable piston, the pressure spring, the movable connecting plate, the cylinder end cover, the adjusting screw and the various components in the pressure-adjustable air pressure balance structure. Therefore, during the use of the side-outlet flameproof submersible sewage electric pump, the internal air pressure of the side-outlet submersible sewage electric pump can be adjusted according to the use requirements of the side-outlet submersible sewage electric pump, so as to protect the device from bursting easily during use and improve the service life of the device, thereby solving the problem of being unable to adjust the internal air pressure of the submersible sewage electric pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the front and side structures of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the pressure-adjustable air pressure balance structure of the utility model;

[0016] Figure 3 For this utility model Figure 2 Schematic diagram of the cross-section structure.

[0017] In the figure: 1. Submersible sewage electric pump with side outlet; 2. Air pressure balance structure with adjustable pressure; 201. Pressure cylinder; 202. Air inlet; 203. Air guide tube; 204. Moving piston; 205. Pressure spring; 206. Moving connecting plate; 207. Cylinder end cover; 208. Adjusting screw; 209. Turning knob. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0019] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0020] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0022] For example, please refer to Figure 1-3 , the utility model provides a technical solution:

[0023] A side-outlet flameproof submersible sewage electric pump, comprising a side-outlet submersible sewage electric pump 1, the side-outlet submersible sewage electric pump 1 being connected to a pressure-adjustable air pressure balance structure 2;

[0024] The pressure-adjustable air pressure balance structure 2 comprises a pressure cylinder 201, which is connected to the submersible sewage electric pump 1 of the side outlet line, an air inlet 202 is arranged on the side wall of the bottom of the pressure cylinder 201, the other end of the air inlet 202 is connected to the air outlet pipe in the inner cavity of the submersible sewage electric pump 1 of the side outlet line through a conduit, an air guide pipe 203 is arranged on the side wall of the pressure cylinder 201, a movable piston 204 is arranged in the inner cavity of the pressure cylinder 201, a pressure spring 205 is connected in the inner cavity of the pressure cylinder 201 and on the end surface of the movable piston 204, a movable connecting plate 206 is connected in the inner cavity of the pressure cylinder 201 and on the end surface of the pressure spring 205, a cylinder end cover 207 is connected to the pressure cylinder 201, an adjusting screw 208 is connected on the end surface of the movable connecting plate 206 and on the cylinder end cover 207, and a rotating knob 209 is connected to the end surface of the adjusting screw 208;

[0025] In this embodiment, reference Figure 1 and Figure 2, the gas inside the submersible sewage electric pump 1 of the side outlet line will be led out from the air guide pipe 203 and enter the pressure cylinder 201. Under the condition that the connection mode between the pressure cylinder 201 and the movable piston 204 is a sliding connection, the air pressure will push the movable piston 204 upward and compress the pressure spring 205. When the movable piston 204 moves to the top of the air guide pipe 203, the gas is discharged from the air guide pipe 203, thereby achieving the balance of the air pressure inside the submersible sewage electric pump 1 of the side outlet line, preventing the explosion of the entire device due to excessive air pressure, and improving the service life of the device. At the same time, after the gas is discharged, the movable piston 204 is restored to its original position under the reaction force of the pressure spring 205;

[0026] In this embodiment, reference Figure 1 and Figure 3 When high-pressure gas is needed inside the submersible sewage electric pump 1 with the side outlet, the adjusting screw 208 is connected to the end face of the mobile connecting plate 206 through the bearing seat, wherein the connection mode of the adjusting screw 208 and the bearing seat is a rotational connection, and a threaded hole is provided on the cylinder end cover 207 corresponding to the adjusting screw 208, wherein the connection mode of the adjusting screw 208 and the threaded hole is a threaded connection. When the adjusting screw 208 is rotated under the condition that one end of the adjusting screw 208 moves downward, the pressure spring 205 and the mobile piston 204 at the bottom of the mobile connecting plate 206 are driven to move downward, thereby increasing the pressure when the gas is discharged.

[0027] Furthermore, the connection between the pressure cylinder 201 and the mobile piston 204 is a sliding connection, the cooperation between the inner cavity of the pressure cylinder 201 and the side wall of the mobile connecting plate 206 is a clearance fit, the adjusting screw 208 is connected to the end face of the mobile connecting plate 206 through a bearing seat, wherein the connection between the adjusting screw 208 and the bearing seat is a rotational connection, and threaded holes are provided on the cylinder end cover 207 corresponding to the adjusting screw 208, wherein the connection between the adjusting screw 208 and the threaded hole is a threaded connection, and the connection between the pressure cylinder 201 and the cylinder end cover 207 is a threaded connection, so that the device can be easily operated when in use.

[0028] The working process of the utility model is as follows: when using the side-outlet explosion-proof submersible sewage electric pump, when the air pressure in the side-outlet submersible sewage electric pump 1 is too high, the gas inside the side-outlet submersible sewage electric pump 1 will be led out from the air guide pipe 203 and enter the pressure cylinder 201. Under the condition that the connection mode between the pressure cylinder 201 and the movable piston 204 is a sliding connection, the air pressure will push the movable piston 204 upward and compress the pressure spring 205. When the movable piston 204 moves to the top of the air guide pipe 203, the gas is discharged from the air guide pipe 203, thereby achieving the balance of the air pressure in the side-outlet submersible sewage electric pump 1, preventing the entire device from bursting when the air pressure is too high, and improving the service life of the device. At the same time, after the gas is discharged, the movable piston 204 is restored to its original position under the reaction force of the pressure spring 205.

[0029] At the same time, when high-pressure gas is needed inside the submersible sewage electric pump 1 with the side outlet, the adjusting screw 208 is connected to the end face of the movable connecting plate 206 through the bearing seat, and the connection mode of the adjusting screw 208 and the bearing seat is a rotating connection. A threaded hole is provided on the cylinder end cover 207 corresponding to the adjusting screw 208, and the connection mode of the adjusting screw 208 and the threaded hole is a threaded connection. When the adjusting screw 208 is rotated under the condition that one end of the adjusting screw 208 moves downward, the pressure spring 205 and the movable piston 204 at the bottom of the movable connecting plate 206 are driven to move downward, thereby increasing the pressure of the gas when it is discharged.

[0030] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A side-outlet flameproof submersible sewage electric pump, comprising a side-outlet submersible sewage electric pump (1), Features: The side-outlet submersible sewage electric pump (1) is connected to a pressure-adjustable air pressure balance structure (2); The pressure-adjustable air pressure balance structure (2) comprises a pressure cylinder (201), the pressure cylinder (201) is connected to a submersible sewage electric pump (1) with a side outlet, an air inlet (202) is arranged on the side wall at the bottom of the pressure cylinder (201), the other end of the air inlet (202) is connected to an air outlet pipe in the inner cavity of the submersible sewage electric pump (1) with a side outlet via a conduit, an air guide pipe (203) is arranged on the side wall of the pressure cylinder (201), a movable piston (204) is arranged in the inner cavity of the pressure cylinder (201), and the A pressure spring (205) is connected in the inner cavity of the pressure cylinder (201) and located on the end surface of the movable piston (204); a movable connecting plate (206) is connected in the inner cavity of the pressure cylinder (201) and located on the end surface of the pressure spring (205); a cylinder end cover (207) is connected to the pressure cylinder (201); an adjusting screw (208) is connected on the end surface of the movable connecting plate (206) and located on the cylinder end cover (207); and a rotating knob (209) is connected to the end surface of the adjusting screw (208).

2. A side-outlet flameproof submersible sewage electric pump according to claim 1, Features: The connection between the pressure cylinder (201) and the movable piston (204) is a sliding connection.

3. A side-outlet flameproof submersible sewage pump according to claim 1, Features: The inner cavity of the pressure cylinder (201) and the side wall of the movable connecting plate (206) are matched in a clearance fit.

4. A side-outlet flameproof submersible sewage electric pump according to claim 1, Features: The adjusting screw (208) is connected to the end surface of the movable connecting plate (206) via a bearing seat, wherein the adjusting screw (208) and the bearing seat are connected in a rotational manner.

5. A side-outlet flameproof submersible sewage electric pump according to claim 1, Features: A threaded hole is provided on the cylinder end cover (207) and corresponds to the adjusting screw (208), wherein the adjusting screw (208) and the threaded hole are connected by thread connection.

6. A side-outlet flameproof submersible sewage electric pump according to claim 1, Features: The pressure cylinder (201) is connected to the cylinder end cover (207) in a threaded connection.

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