Electromagnetic pump air tightness detection device

Abstract

The utility model relates to the technical field of electromagnetic pump production, in particular to an electromagnetic pump air tightness detection device, which is characterized in that positioning plates are arranged on the front side of the middle part of the top surface of a bottom frame in parallel in pairs and respectively extend along the transverse direction, and the top ends of the two positioning plates in pairs are provided with corresponding positioning notches; the rear end of the air inlet joint is provided with an air inlet sleeve hole which is sleeved and matched with a liquid discharge nozzle of the electromagnetic valve; the side wall of the air inlet joint is provided with an air inlet hole of which the inner end is communicated with the air inlet sleeve hole and the outer end is connected to air pump equipment through a pipeline; the telescopic cylinder is used for pushing the air inlet connector backwards. The exhaust plate is fixed to the rear side of the middle of the top face of the bottom frame. An exhaust sleeve hole matched with a liquid inlet nozzle of the electromagnetic valve in a sleeved mode is formed in the position, right opposite to the positioning notch, of the exhaust plate. The water tank is fixed at the top rear end of the underframe; the front end of the air delivery pipe sleeves the rear end of the exhaust sleeve hole, and the rear end of the air delivery pipe extends into the inner cavity of the water tank; the problems that the operation is inconvenient and the efficiency is not high when the air tightness detection is carried out on the plunger type electromagnetic pump are well solved.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic pump manufacturing technology, specifically to an electromagnetic pump airtightness testing device. Background Technology

[0002] A plunger-type electromagnetic pump is a fluid transfer device that combines electromagnetic drive with the structure of a plunger pump. During operation, an electromagnetic coil is energized to generate a magnetic field, which drives an iron plunger to reciprocate within the pump body, achieving the intake and discharge of liquid. This type of electromagnetic pump is compact, small, and offers high and stable flow accuracy, making it suitable for metering applications.

[0003] A commonly used plunger-type electromagnetic pump mainly consists of an electromagnetic drive unit, an inlet end, and an outlet end. The electromagnetic drive unit mainly includes a housing, a coil support, an electromagnetic coil, a plunger, a guide rail, and a return spring, etc.; the inlet end and the outlet end respectively include a nozzle support fixedly mounted on both ends of the coil support of the electromagnetic drive unit and a nozzle inserted into the outer port of the nozzle support.

[0004] After manufacturing, electromagnetic pumps require airtightness testing, particularly the airtightness of the one-way valve structure at the outlet, to ensure the pump body's internal airtightness meets operational requirements. Traditionally, airtightness testing of electromagnetic pumps often employs the differential pressure method, which involves filling the pump body with gas at a certain pressure and comparing the pressure change with that of a standard tank, using a differential pressure sensor to calculate the leakage. This airtightness testing method suffers from cumbersome procedures and low testing efficiency. Utility Model Content

[0005] The purpose of this invention is to provide an electromagnetic pump airtightness testing device to solve the problems of inconvenient operation and low efficiency in the existing technology for airtightness testing of plunger electromagnetic pumps.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an electromagnetic pump airtightness testing device, wherein positioning plates are arranged in pairs parallel to each other on the front side of the middle of the top surface of the base frame, and extend laterally respectively, and the top of the two pairs of positioning plates are provided with corresponding positioning slots; the rear end of the air inlet connector is provided with an air inlet sleeve hole that matches the drain nozzle of the electromagnetic valve, and the side wall of the air inlet connector is provided with an air inlet hole whose inner end communicates with the air inlet sleeve hole and whose outer end is connected to the air pump equipment through a pipeline; a telescopic cylinder is used to push the air inlet connector backward; an exhaust plate is fixed on the rear side of the middle of the top surface of the base frame, and the exhaust plate is provided with an exhaust sleeve hole that matches the drain nozzle of the electromagnetic valve at the position opposite to the positioning slot; a water tank is fixed on the rear end of the top surface of the base frame; the front end of the air supply pipe is sleeved on the rear end of the exhaust sleeve hole, and the rear end of the air supply pipe extends into the inner cavity of the water tank.

[0007] Preferably, the base frame is composed of spliced ​​aluminum profiles.

[0008] Preferably, a rubber collar one and a rubber collar two are respectively fitted inside the air intake sleeve hole and the air exhaust sleeve hole.

[0009] Preferably, the positioning slot is an arc-shaped groove, and the positioning slot is evenly distributed on the top of the positioning plate along the transverse direction.

[0010] Preferably, the plurality of telescopic cylinders are respectively fixed longitudinally to the front end of the top of the base frame, and the rear end of the piston rod of the telescopic cylinder is respectively fixedly connected to the front end of the air inlet connector.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. The electromagnetic pump air tightness testing device of this utility model has a simple overall structure, is easy to operate, and facilitates the improvement of the efficiency of air tightness testing of electromagnetic pumps.

[0013] 2. The electromagnetic pump airtightness testing device involved in this utility model is easy to process and manufacture, has low investment cost, and is easy to promote and apply. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the entire utility model;

[0015] Figure 2 This is a three-dimensional structural diagram of the positioning plate of this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the air intake connector of this utility model;

[0017] Figure 4 This is a three-dimensional structural diagram of the exhaust plate of this utility model.

[0018] In the diagram: 1 - base frame;

[0019] 2-Positioning plate; 2.1-Positioning slot;

[0020] 3-Telescopic cylinder;

[0021] 4-Inlet connector; 4.1-Inlet sleeve; 4.2-Inlet port; 4.3-Rubber collar one;

[0022] 5-Exhaust plate; 5.1-Exhaust sleeve hole; 5.2-Rubber collar two;

[0023] 6-Gas pipeline;

[0024] 7-Sink. Detailed Implementation

[0025] 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.

[0026] For examples, please refer to Figure 1-4 This utility model provides a technical solution: an electromagnetic pump airtightness testing device, wherein the base frame 1 is a frame structure composed of aluminum profile splicing.

[0027] Positioning plates 2 are arranged in pairs parallel to each other on the front side of the top surface of the base frame 1, and extend laterally. The top of each pair of positioning plates 2 is provided with corresponding positioning slots 2.1. The positioning slots 2.1 are arc-shaped grooves, and the positioning slots 2.1 are evenly distributed laterally on the top of the positioning plates 2.

[0028] The rear end of the air inlet connector 4 is provided with an air inlet sleeve hole 4.1 that matches the solenoid valve drain nozzle. The side wall of the air inlet connector 4 is provided with an air inlet hole 4.2 whose inner end is connected to the air inlet sleeve hole 4.1 and whose outer end is connected to the air pump equipment through a pipeline.

[0029] Telescopic cylinder 3 is used to push the air intake connector 4 backward.

[0030] The vent plate 5 is fixed to the rear side of the middle of the top surface of the base frame 1. The vent plate 5 has a vent sleeve hole 5.1 that matches the solenoid valve inlet nozzle at the position opposite the positioning slot 2.1. The top surface of the vent plate 5 has countersunk holes at the positions between two adjacent vent sleeve holes 5.1. The hexagon socket head cap bolts fitted in the countersunk holes are used to fix the vent plate 5 to the top surface of the base frame 1.

[0031] The water tank 7 is fixed to the rear end of the top surface of the base frame 1; the front end of the air supply pipe 6 is sleeved on the rear end of the exhaust sleeve hole 5.1, and the rear end of the air supply pipe 6 extends into the inner cavity of the water tank 7.

[0032] In summary, when performing an airtightness test on the electromagnetic pump, the inlet nozzle of the electromagnetic pump is placed in the positioning slot 2.1 on the rear positioning plate 2, and the outlet nozzle is placed in the corresponding positioning slot 2.1 on the front positioning plate 2. At this time, the outlet end of the electromagnetic pump is directly opposite the air inlet sleeve hole 4.1 of the air inlet connector 4, and the inlet end is directly opposite the exhaust sleeve hole 5.1 on the exhaust plate 5.

[0033] The air inlet 4.2 is connected to the output end of the air pump equipment through an air pipe, and clean water is injected into the water tank 7, which needs to cover the port of the air supply pipe 6.

[0034] The telescopic cylinder 3 pushes the air inlet connector 4 backward, which not only connects the air inlet sleeve 4.1 to the liquid outlet of the electromagnetic pump, but also pushes the liquid inlet of the electromagnetic pump into the exhaust sleeve 5.1.

[0035] Restart the air pump. The air pump supplies high-pressure gas through the air inlet 4.2 into the air inlet sleeve 4.1. If there is a leak in the one-way valve inside the electromagnetic pump, this high-pressure gas will be introduced into the water in the water tank 7 through the liquid inlet, the exhaust sleeve 5.1, and the air supply pipe 6, generating bubbles. If no bubbles are generated at the output end of the corresponding air supply pipe 6, it indicates that the one-way valve inside the corresponding electromagnetic pump is airtight.

[0036] To ensure the airtightness between the liquid outlet and liquid inlet of the electromagnetic pump and the air inlet sleeve 4.1 and the exhaust sleeve 5.1, rubber collar 1 4.3 and rubber collar 2 5.2 are respectively fitted inside the air inlet sleeve 4.1 and the exhaust sleeve 5.1.

[0037] Alternatively, for the method of pushing the air intake connector 4 backward with the telescopic cylinder 3, one telescopic cylinder 3 can be used to synchronously drive multiple air intake connectors 4 to move backward at the same time. Another method is to use multiple telescopic cylinders 3 to independently push a single air intake connector 4 backward, that is, multiple telescopic cylinders 3 are respectively fixed longitudinally to the front end of the top of the base frame 1, and the rear end of the piston rod of the telescopic cylinder 3 is fixedly connected to the front end of the air intake connector 4.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for detecting the airtightness of an electromagnetic pump, characterized in that, include: Base frame (1); Positioning plates (2) are arranged in pairs parallel to each other on the front side of the top surface of the base frame (1) and extend laterally respectively. The top of the two positioning plates (2) are provided with corresponding positioning slots (2.1). The air inlet connector (4) has an air inlet sleeve hole (4.1) at the rear end that is matched with the drain nozzle of the solenoid valve. The side wall of the air inlet connector (4) has an inner end that communicates with the air inlet sleeve hole (4.1) and an outer end that is connected to the air inlet hole (4.2) of the air pump equipment through a pipeline. Telescopic cylinder (3) for pushing the air intake connector (4) backward; The exhaust plate (5) is fixed to the rear side of the middle of the top surface of the base frame (1). The exhaust plate (5) is provided with an exhaust sleeve hole (5.1) that matches the solenoid valve inlet nozzle at the position opposite the positioning slot (2.1). Water tank (7) is fixed to the rear end of the top surface of the base frame (1); The front end of the gas supply pipe (6) is sleeved on the rear end of the exhaust sleeve hole (5.1), and the rear end of the gas supply pipe (6) extends into the inner cavity of the water tank (7).

2. The electromagnetic pump airtightness testing device according to claim 1, characterized in that: The base frame (1) is composed of aluminum profiles spliced ​​together.

3. The electromagnetic pump airtightness testing device according to claim 1, characterized in that: Rubber collar one (4.3) and rubber collar two (5.2) are respectively fitted inside the air intake sleeve (4.1) and the exhaust sleeve (5.1).

4. The electromagnetic pump airtightness testing device according to claim 1, characterized in that: The positioning slot (2.1) is an arc-shaped groove, and the positioning slot (2.1) is evenly arranged on the top of the positioning plate (2) in the transverse direction.

5. The electromagnetic pump airtightness testing device according to claim 4, characterized in that: Multiple telescopic cylinders (3) are fixed longitudinally to the front end of the top of the base frame (1), and the rear end of the piston rod of the telescopic cylinder (3) is fixedly connected to the front end of the air inlet connector (4).

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