Electromagnetic diaphragm pump

Abstract

The utility model discloses an electromagnetic diaphragm pump and relates to the field of water pumps. The device comprises a diaphragm pump body, the back end of the diaphragm pump body is fixedly connected with an electromagnetic power piece, the upper end and the lower end of the diaphragm pump body are fixedly connected with pump body pipe sets, and a quick check valve assembly is fixedly connected between the diaphragm pump body and the pump body pipe sets and comprises a check valve shell and a check piston piece. The non-return piston part is connected into the non-return valve shell in a sliding mode, a non-return cavity is formed in the non-return valve shell, the two ends of the non-return piston part are fixedly connected with sealing blocks, a water conveying through hole is formed in the non-return piston part, and a spring is arranged at the bottom end of the non-return piston part. According to the quick check valve assembly, when the diaphragm piece shrinks, the piston in the water outlet pipeline blocks the water outlet downwards more quickly under the elastic force action of the spring to reduce backflow, the piston in the diaphragm piece expanding water inlet pipeline can block the water outlet downwards quickly to prevent excessive backflow, the flow is stable, and meanwhile the sealing performance of the quick check valve assembly is better by adding the sealing block.

Description

TECHNICAL FIELD

[0001] The utility model relates to water pump technical field, concretely is electromagnetic diaphragm pump. BACKGROUND

[0002] Electromagnetic diaphragm pump is a kind of metering pump using electromagnetic force to drive diaphragm vibration, to realize liquid delivery. It is widely used in chemical industry, medicine, environmental protection and other fields, and is favored due to its good sealing performance, simple structure, low power loss and other advantages. Its working principle is mainly based on electromagnetic push rod driving diaphragm reciprocating motion in pump head, causing the change of pump head cavity volume and pressure, and then realizing the opening and closing of liquid suction valve and liquid discharge valve, so as to complete the quantitative suction and discharge of liquid. At present, electromagnetic diaphragm pump industry is in the development stage, and market demand continues to grow.

[0003] The existing diaphragm pump generally uses check ball as the piston of check valve, but the speed of check ball is generally impacted by water pressure when diaphragm expands or shrinks. When expanding, the slow speed of check ball in the check valve of water inlet pipeline causes excessive backflow of water flow from the water inlet pipe, and when shrinking, the slow speed of check ball in the check valve of water outlet pipeline also causes excessive backflow of water flow into the pump body from the water outlet pipe, which reduces the flow size and has poor sealing performance. To solve the above problems, the utility model provides an electromagnetic diaphragm pump. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model provides an electromagnetic diaphragm pump, which solves the problem that the existing diaphragm pump generally uses check ball as the piston of check valve, but the speed of check ball is generally impacted by water pressure when diaphragm expands or shrinks. When expanding, the slow speed of check ball in the check valve of water inlet pipeline causes excessive backflow of water flow from the water inlet pipe, and when shrinking, the slow speed of check ball in the check valve of water outlet pipeline also causes excessive backflow of water flow into the pump body from the water outlet pipe, which reduces the flow size and has poor sealing performance.

[0005] To achieve the above purpose, the utility model is realized by the following technical scheme: an electromagnetic diaphragm pump, comprising a diaphragm pump body, the back end of the diaphragm pump body is fixedly connected with an electromagnetic power element, the upper and lower ends of the diaphragm pump body are fixedly connected with a pump body pipe group, the diaphragm pump body and the pump body pipe group are fixedly connected with a quick check valve assembly, the quick check valve assembly comprises a check valve housing and a check piston element, the check piston element is slidingly connected in the check valve housing, wherein a check cavity is formed in the check valve housing, wherein the two ends of the check piston element are fixedly connected with a sealing block, a water delivery through hole is formed in the check piston element, and a spring is arranged at the bottom end of the check piston element.

[0006] Preferably, the check valve housing is fixedly connected with a pump body pipe group at both ends, one end of the pump body pipe group is fixedly connected with a fixed flange plate, and the fixed flange plate is provided with fixing bolts.

[0007] Preferably, the check valve housing is fixedly connected with a pump body pipe group at both ends, one end of the pump body pipe group is fixedly connected with a fixed flange plate, and the fixed flange plate is provided with fixing bolts.

[0008] Preferably, the check valve housing is fixedly connected with a pump body pipe group at both ends, one end of the pump body pipe group is fixedly connected with a fixed flange plate, and the fixed flange plate is provided with fixing bolts.

[0009] Preferably, the check valve housing is fixedly connected with a pump body pipe group at both ends, one end of the pump body pipe group is fixedly connected with a fixed flange plate, and the fixed flange plate is provided with fixing bolts.

[0010] Preferably, the check valve housing is fixedly connected with a pump body pipe group at both ends, one end of the pump body pipe group is fixedly connected with a fixed flange plate, and the fixed flange plate is provided with fixing bolts.

[0011] The utility model discloses an electromagnetic diaphragm pump, which has the following beneficial effects: the electromagnetic diaphragm pump is provided with a check piston piece connected with a spring inside the check valve, so that when the diaphragm piece contracts, the piston in the water outlet pipeline can be blocked downward more quickly under the elastic force of the spring to reduce backflow, and the piston in the water inlet pipeline can be blocked downward quickly to prevent excessive backflow, so that the flow is stable, and the sealing property of the quick check valve assembly is better through the addition of the sealing block. ACCURACY

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0013] Figure 1 It is the whole section structure schematic diagram of the utility model;

[0014] Figure 2 It is the whole structure schematic diagram of the utility model quick check valve assembly;

[0015] Figure 3 It is the explosion structure schematic diagram of the utility model quick check valve assembly;

[0016] Figure 4The utility model discloses a quick check valve assembly section structure schematic diagram.

[0017] In the figure: 1, diaphragm pump body;11, diaphragm piece;2, electromagnetic power piece;3, pump body pipe group;31, input pipe;32, output pipe;33, fixed flange plate;34, fixed bolt;4, quick check valve assembly;41, check valve shell;411, fixed flange hole;412, sealing washer;413, check cavity;414, second chamber;415, water sending chamber;42, check piston piece;421, sealing block;422, water delivery through-hole;423, connecting long rod;424, spring. DETAILED DESCRIPTION

[0018] In order to make the utility model embodiment purpose, technical scheme and advantage more clearly, to the technical scheme in the utility model embodiment, clear, complete description, obviously, the described embodiment is the part embodiment of the utility model, rather than all the embodiment. Based on the embodiment in the utility model, all other embodiments that the ordinary skill in the art obtains without making creative labor are within the scope of the utility model protection.

[0019] The embodiment of the application provides the electromagnetic diaphragm pump, solve the existing diaphragm pump generally through check ball to act as the piston of check valve, but check ball is under the impact of water pressure when diaphragm expands or contracts, the speed is generally, when expanding, the speed of check ball in the check valve of inlet pipeline is too slow, and the water flow from inlet pipe causes excessive backflow, when contracting, the speed of check ball in the check valve of outlet pipeline is too slow, and the water flow from outlet pipe into the pump body also causes excessive backflow, reduces the flow size, and the sealing performance is poor.

[0020] In order to better understand the above technical scheme, the above technical scheme will be described in detail in the description of the drawings and specific embodiments.

[0021] The utility model embodiment discloses electromagnetic diaphragm pump.

[0022] According to the Figures 1-4 As shown in the figure,

[0023] The utility model provides a kind of diaphragm pump, including diaphragm pump body 1, diaphragm pump body 1 back end fixedly connected with electromagnetic power element 2, diaphragm pump body 1 upper and lower ends fixedly connected with pump body pipe group 3, diaphragm pump body 1 and pump body pipe group 3 between fixedly connected with quick check valve assembly 4, quick check valve assembly 4 includes check valve housing 41 and check piston piece 42, check piston piece 42 slidingly connects in check valve housing 41, wherein, check valve housing 41 is opened in check cavity 413, wherein, check piston piece 42 both ends fixedly connected with sealing block 421, check piston piece 42 is opened in water delivery through-hole 422, check piston piece 42 bottom end is provided with spring 424, when diaphragm expands in use, water pressure expands in the pump body pipe group 3 of upper and lower ends, so that check piston piece 42 in water inlet pipe moves downward, simultaneously under the drive of spring 424, more quickly closed, prevent liquid in diaphragm pump body 1 from flowing back into water pipe, check piston piece 42 in water outlet pipe is contracted in diaphragm similarly.

[0024] Check valve housing 41 both ends fixedly connected with pump body pipe group 3, pump body pipe group 3 is fixedly connected with fixed flange plate 33 close to check valve housing 41 one end, fixed flange plate 33 is provided with fixed bolt 34, check valve housing 41 upper and lower ends are all opened in fixed flange hole 411, fixed flange plate 33 is fixedly connected in fixed flange hole 411 by fixed bolt 34, check valve housing 41 upper and lower ends fixedly connected with sealing washer 412, check piston piece 42 bottom end fixedly connected with connecting long rod 423, spring 424 bottom end is fixedly connected on connecting long rod 423, check valve housing 41 is opened in second chamber 414 and water delivery chamber 415, second chamber 414 and check cavity 413 are communicated, connecting long rod 423 slidingly connects in second chamber 414, spring 424 top end is fixedly connected on the inner wall of second chamber 414, fixed flange plate 33 is used for fixed with check valve housing 41, simultaneously sealed by sealing washer 412, spring 424 is arranged in second chamber 414.

[0025] Diaphragm pump body 1 is provided with diaphragm piece 11, pump body pipe group 3 bottom end fixedly connected with input pipe 31, pump body pipe group 3 top end fixedly connected with output pipe 32.

[0026] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model can have various changes and improvements, and these changes and improvements fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. An electromagnetic diaphragm pump, comprising a diaphragm pump body (1), wherein an electromagnetic power component (2) is fixedly connected to the back end of the diaphragm pump body (1), and pump body pipe assemblies (3) are fixedly connected to the upper and lower ends of the diaphragm pump body (1), characterized in that, A quick check valve assembly (4) is fixedly connected between the diaphragm pump body (1) and the pump body pipe assembly (3); The quick check valve assembly (4) includes a check valve housing (41) and a check piston (42), wherein the check piston (42) is slidably connected within the check valve housing (41); The check valve housing (41) has a check cavity (413) inside; Among them, the check piston (42) is fixedly connected to sealing blocks (421) at both ends, the check piston (42) is provided with a water supply hole (422), and the bottom end of the check piston (42) is provided with a spring (424).

2. The electromagnetic diaphragm pump according to claim 1, characterized in that: The check valve housing (41) is fixedly connected to two ends of a pump body pipe assembly (3). The pump body pipe assembly (3) is fixedly connected to a fixed flange (33) at one end near the check valve housing (41). The fixed flange (33) is provided with a fixing bolt (34).

3. The electromagnetic diaphragm pump according to claim 2, characterized in that: The check valve housing (41) has fixed flange holes (411) at both the upper and lower ends. The fixed flange (33) is fixedly connected to the fixed flange hole (411) by fixing bolts (34). Sealing gaskets (412) are fixedly connected to the upper and lower ends of the check valve housing (41).

4. The electromagnetic diaphragm pump according to claim 1, characterized in that: The bottom end of the check piston (42) is fixedly connected to a connecting rod (423), and the bottom end of the spring (424) is fixedly connected to the connecting rod (423).

5. The electromagnetic diaphragm pump according to claim 4, characterized in that: The check valve housing (41) has a second chamber (414) and a water delivery chamber (415) inside. The second chamber (414) and the check chamber (413) are connected. The connecting rod (423) is slidably connected in the second chamber (414). The top end of the spring (424) is fixedly connected to the inner wall of the second chamber (414).

6. The electromagnetic diaphragm pump according to claim 1, characterized in that: The diaphragm pump body (1) is provided with a diaphragm component (11), the bottom end of the pump body pipe assembly (3) is fixedly connected to an input pipe (31), and the top end of the pump body pipe assembly (3) is fixedly connected to an output pipe (32).

Images