Pneumatic diaphragm pump

Abstract

The utility model discloses a pneumatic diaphragm pump which comprises a pneumatic diaphragm pump body, a feeding port is formed in the outer surface of the pneumatic diaphragm pump body, a first connecting pipe is arranged at the front end of the feeding port, a processing box is fixedly connected to the outer surface of the first connecting pipe, and a second connecting pipe is fixedly connected to the inner surface of the processing box. A flange is fixedly connected to the outer surface of the second connecting pipe, an inserting groove is formed in the inner surface of the treatment box, and a filter screen is slidably connected to the inner surface of the inserting groove. According to the pneumatic diaphragm pump, the first connecting pipe, the treatment box, the second connecting pipe and the filter screen are arranged, large-particle impurities in a liquid material can be effectively prevented from entering the pneumatic diaphragm pump, abrasion or damage to internal parts of the pneumatic diaphragm pump caused by the impurities is avoided, and therefore the service life of the pneumatic diaphragm pump is prolonged; and the joint of the filter screen and the treatment box can be sealed, so that the possibility of liquid material leakage is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to pneumatic diaphragm pump technical field, especially pneumatic diaphragm pump. BACKGROUND

[0002] Pneumatic diaphragm pump is a kind of pump using compressed air as power source, is widely used in various industrial fields, its working principle is to realize the delivery of fluid by the reciprocating movement of diaphragm.Compressed air enters pump body, and diaphragm is pushed to move back and forth in pump cavity, thereby the volume of pump cavity is changed, and fluid is inhaled and discharged.

[0003] But the existing pneumatic diaphragm pump still has certain defects, for example: the filter structure is not arranged at the feed inlet of pump body, so that the particulate matter and impurities in liquid can directly enter pump body, and these impurities can cause abrasion or damage to the internal components of pump, such as diaphragm, valve etc., to further affect the service life of the whole equipment. UTILITY MODEL CONTENT

[0004] The utility model is to at least solve one of the technical problems existing in the prior art, provide a kind of pneumatic diaphragm pump, the impurities of larger particles in liquid material can be effectively blocked to enter the inside of pneumatic diaphragm pump, avoid these impurities to cause abrasion or damage to the internal components of pneumatic diaphragm pump, to improve the service life of pneumatic diaphragm pump.

[0005] The utility model further provides the pneumatic diaphragm pump with the above, comprising:

[0006] Pneumatic diaphragm pump, the outer surface of the pneumatic diaphragm pump is provided with feed inlet, the front end of the feed inlet is provided with first connecting pipe, the outer surface of the first connecting pipe is fixedly connected with processing box, the inner surface of the processing box is fixedly connected with second connecting pipe, the outer surface of the second connecting pipe is fixedly connected with flange, the inner surface of the processing box is provided with slot, the inner surface of the slot is slidably connected with filter screen, the upper surface of the filter screen is fixedly connected with limit board, the lower surface of the limit board is provided with sealing ring.

[0007] Connecting assembly, the inner surface of the fixed box is fixedly connected with slide rod, the lower end of the spring is fixedly connected with fixed plate, the inner surface of the fixed seat is fixedly connected with fixed column, the inner surface of the L-shaped buckle is fixedly connected with plug block, the outer surface of the L-shaped buckle is fixedly connected with T-shaped block.

[0008] According to the pneumatic diaphragm pump, the outer surface of the limit board is provided with insertion hole, the inner surface of the insertion hole is matched with plug block, so that the installation and disassembly of filter screen are facilitated.

[0009] According to the air-driven diaphragm pump, the inside of the fixed box is provided with a limiting groove, the inner surface of the limiting groove is matched with the fixed plate, and the movement of the fixed plate is limited.

[0010] According to the air-driven diaphragm pump, the lower surface of the sealing ring is in contact with the treatment box, the possibility of liquid material leakage is reduced, and the upper surface of the limiting plate is fixedly connected with a handle, so that the filter screen can be taken out conveniently.

[0011] According to the air-driven diaphragm pump, the outer surface of the treatment box is fixedly connected with the fixed box, and the number of the connecting assemblies is two and is distributed on the left and right.

[0012] According to the air-driven diaphragm pump, the outer surface of the sliding rod is in sliding connection with the fixed plate, and the spring sliding sleeve is sleeved on the outer surface of the sliding rod.

[0013] According to the air-driven diaphragm pump, the upper surface of the fixed plate is fixedly connected with the fixed seat, and the outer surface of the fixed column is rotationally connected with the L-shaped buckle.

[0014] According to the air-driven diaphragm pump, the outer surface of the limiting plate is in contact with the L-shaped buckle, and the outer surface of the L-shaped buckle is in contact with the fixed box.

[0015] Compared with the prior art, the air-driven diaphragm pump has the advantages that:

[0016] 1. By arranging the first connecting pipe, the treatment box, the second connecting pipe and the filter screen, the larger impurities in the liquid material can be effectively blocked from entering the inside of the air-driven diaphragm pump, so that the wear or damage of the internal components of the air-driven diaphragm pump is avoided, the service life of the air-driven diaphragm pump is prolonged, and the interface between the filter screen and the treatment box can be sealed by arranging the filter screen and the sealing ring, so that the possibility of liquid material leakage is reduced.

[0017] 2. By arranging the slot, the connecting assembly and the plug hole, the filter screen can be conveniently installed and dismounted as a whole, so that the filter screen can be conveniently cleaned without the aid of tools, and the use effect is better.

[0018] Additional aspects and advantages of the present application will be given in part in the following description, some of which will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0019] The present application will be further described below in combination with the drawings and embodiments.

[0020] Figure 1 It is a whole structure schematic view of the air-driven diaphragm pump.

[0021] Figure 2Part structure diagram of a pneumatic diaphragm pump of the utility model,

[0022] Figure 3 For Figure 2 Structure enlarged schematic view at A in the middle,

[0023] Figure 4 Part structure sectional view of a pneumatic diaphragm pump of the utility model,

[0024] Figure 5 Filter screen structure schematic view of a pneumatic diaphragm pump of the utility model,

[0025] Figure 6 Connection assembly structure sectional view of a pneumatic diaphragm pump of the utility model.

[0026] Legend:

[0027] 1, pneumatic diaphragm pump, 2, feed inlet, 3, first connecting pipe, 4, processing box, 5, second connecting pipe, 6, flange, 7, slot, 8, filter screen, 9, limiting plate, 10, sealing ring, 11, handle, 12, connecting assembly, 13, fixed box, 14, sliding rod, 15, spring, 16, fixed plate, 17, fixed seat, 18, fixed column, 19, L-shaped buckle, 20, plug block, 21, T-shaped block, 22, insertion hole, 23, limiting groove. Specific implementation

[0028] This part will describe the specific embodiments of the utility model in detail, the preferred embodiments of the utility model are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0029] Referring Figures 1-6 , the utility model embodiment a pneumatic diaphragm pump, the outer surface of pneumatic diaphragm pump 1 is provided with feed inlet 2, the front end of feed inlet 2 is provided with first connecting pipe 3, the outer surface of first connecting pipe 3 is fixedly connected with processing box 4, the inner surface of processing box 4 is fixedly connected with second connecting pipe 5, the outer surface of second connecting pipe 5 is fixedly connected with flange 6, the inner surface of processing box 4 is provided with slot 7, the inner surface of slot 7 is slidably connected with filter screen 8, the upper surface of filter screen 8 is fixedly connected with limiting plate 9, the lower surface of limiting plate 9 is provided with sealing ring 10, the outer surface of limiting plate 9 is provided with insertion hole 22, the lower surface of sealing ring 10 is in contact with processing box 4, the upper surface of limiting plate 9 is fixedly connected with handle 11.

[0030] The connecting assembly 12 comprises a fixed box 13, a sliding rod 14, a spring 15, a fixed plate 16, a fixed seat 17, a fixed column 18, an L-shaped buckle 19, an insertion block 20 and a T-shaped block 21, the inner surface of the fixed box 13 is fixedly connected with the sliding rod 14, the lower end of the spring 15 is fixedly connected with the fixed plate 16, the inner surface of the fixed seat 17 is fixedly connected with the fixed column 18, the inner surface of the L-shaped buckle 19 is fixedly connected with the insertion block 20, the outer surface of the L-shaped buckle 19 is fixedly connected with the T-shaped block 21, the inner surface of the insertion hole 22 is matched with the insertion block 20, the inside of the fixed box 13 is provided with a limiting groove 23, the inner surface of the limiting groove 23 is matched with the fixed plate 16, the outer surface of the processing box 4 is fixedly connected with the fixed box 13, the number of the connecting assembly 12 is two and is distributed on the left and right sides, the outer surface of the sliding rod 14 is slidingly connected with the fixed plate 16, the spring 15 is slidingly sleeved on the outer surface of the sliding rod 14, the upper surface of the fixed plate 16 is fixedly connected with the fixed seat 17, the outer surface of the fixed column 18 is rotatably connected with the L-shaped buckle 19, the outer surface of the limiting plate 9 is in contact with the L-shaped buckle 19, and the outer surface of the L-shaped buckle 19 is in contact with the fixed box 13.

[0031] Working principle: when the pneumatic diaphragm pump 1 is in use, liquid material enters the inside of the pneumatic diaphragm pump 1 through the second connecting pipe 5, the processing box 4, the first connecting pipe 3 and the feeding port 2 in sequence, first, the liquid material can block the possibility of larger particle impurities entering the inside of the pneumatic diaphragm pump 1 under the action of the filter screen 8, thereby reducing the possibility of damage to the components in the inside of the pneumatic diaphragm pump 1, thereby prolonging the service life of the pneumatic diaphragm pump 1, when it is necessary to clean and replace the filter screen 8, the T-shaped block 21 on the connecting assembly 12 on the two sides is pulled upwards, the L-shaped buckle 19 is driven to move upwards, the fixed plate 16 on the sliding rod 14 is compressed under the action of the fixed plate 16, the insertion block 20 can be separated from the inside of the insertion hole 22, then the L-shaped buckle 19 is turned over as a whole around the fixed column 18, the limiting effect on the filter screen 8 as a whole is released, then the handle 11 is pulled upwards along the inside of the insertion slot 7, the filter screen 8 as a whole can be taken out to complete disassembly, after cleaning, the filter screen 8 as a whole is inserted into the insertion slot 7 again, and the sealing ring 10 below the limiting plate 9 is attached to the processing box 4, the sealing property of the interface between the processing box 4 and the limiting plate 9 can be ensured, then the L-shaped buckle 19 is turned over again around the fixed column 18, and the T-shaped block 21 is pulled upwards, so that the insertion block 20 is in the corresponding position of the insertion hole 22, then the T-shaped block 21 is slowly loosened, the insertion block 20 can be automatically clamped into the insertion hole 22, thereby completing the limiting and fixed installation of the filter screen 8 as a whole, which is simple and convenient, and tools are not needed.

[0032] The utility model embodiment has been explained in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiment, within the knowledge range of ordinary skill in the art, various changes can be made without departing from the purpose of the utility model.

Claims

1. A pneumatic diaphragm pump characterized in that, The utility model relates to a kind of air-operated diaphragm pumps (1), the outer surface of the air-operated diaphragm pump (1) is provided with feed inlet (2), the front end of the feed inlet (2) is provided with first connecting pipe (3), the outer surface of the first connecting pipe (3) is fixedly connected with processing box (4), the inner surface of the processing box (4) is fixedly connected with second connecting pipe (5), the outer surface of the second connecting pipe (5) is fixedly connected with flange (6), the inner surface of the processing box (4) is provided with slot (7), the inner surface of the slot (7) is slidably connected with filter screen (8), the upper surface of the filter screen (8) is fixedly connected with limiting plate (9), the lower surface of the limiting plate (9) is provided with sealing ring (10); Connecting assembly (12), the connecting assembly (12) includes fixed box (13), sliding rod (14), spring (15), fixed plate (16), fixed seat (17), fixed column (18), L-shaped buckle (19), plug block (20) and T-shaped block (21), the inner surface of the fixed box (13) is fixedly connected with sliding rod (14), the lower end of the spring (15) is fixedly connected with fixed plate (16), the inner surface of the fixed seat (17) is fixedly connected with fixed column (18), the inner surface of the L-shaped buckle (19) is fixedly connected with plug block (20), the outer surface of the L-shaped buckle (19) is fixedly connected with T-shaped block (21). The outer surface of the limiting plate (9) is provided with insertion hole (22), the inner surface of the insertion hole (22) is matched with plug block (20).

2. A gas driven diaphragm pump according to claim 1, characterized in that The inside of the fixed box (13) is provided with limiting groove (23), the inner surface of the limiting groove (23) is matched with fixed plate (16).

3. A gas driven diaphragm pump according to claim 1, characterized in that The lower surface of the sealing ring (10) is in contact with the processing box (4), and the upper surface of the limiting plate (9) is fixedly connected with the handle (11).

4. A gas driven diaphragm pump according to claim 1, characterized in that The outer surface of the processing box (4) is fixedly connected with the fixed box (13), and the number of the connecting assembly (12) is two and is distributed left and right.

5. A gas driven diaphragm pump according to claim 1, characterized in that The outer surface of the sliding rod (14) is slidably connected with the fixed plate (16), and the spring (15) is slidably sleeved on the outer surface of the sliding rod (14).

6. A gas driven diaphragm pump according to claim 1, characterized in that The upper surface of the fixed plate (16) is fixedly connected with the fixed seat (17), and the outer surface of the fixed column (18) is rotatably connected with the L-shaped buckle (19).

7. A gas driven diaphragm pump according to claim 1, characterized in that The outer surface of the limiting plate (9) is in contact with the L-shaped buckle (19), and the outer surface of the L-shaped buckle (19) is in contact with the fixed box (13).

8. A gas driven diaphragm pump according to claim 1, characterized in that ​

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