A manual diaphragm pump

Abstract

The utility model discloses a manual diaphragm pump, which belongs to the technical field of delivery pumps, including a water pump body, characterized in that: an end cover is installed above the water pump body, a water storage cavity is integrated inside the water pump body, a water inlet and a drain are integrated at both ends of the water pump body, a check baffle A and a check baffle B are rotatably connected inside the water inlet and the drain, a piston is slidably installed inside the water pump body through a water seal, a diaphragm is clamped at the bottom of the piston through a clamping plate, the diaphragm is tightly fitted around the water storage cavity, a rocker arm is rotatably connected at the bottom of the piston, and a handle lever is movably connected at one end of the rocker arm. In the utility model, the device does not need to rely on electricity, eliminates risks such as sewage overflow, pollutes sewage pits and equipment, and reduces unnecessary losses. This design can be applied to civil air defense emergency drainage matching, and the baffle-type check device is more flexible and convenient for flat installation or hanging installation, which makes the device more applicable.

Description

Technical Field

[0001] The utility model belongs to the technical field of delivery pumps, in particular to a manual diaphragm pump. Background Art

[0002] A water pump is a machine that transports liquid or pressurizes liquid. It transfers the mechanical energy of the prime mover or other external energy to the liquid, increasing the liquid energy and achieving the purpose of transportation.

[0003] Water pumps are the most common water delivery equipment in daily life. Diaphragm pumps use a thin film to separate the delivered liquid from the piston and pump cylinder, thereby protecting the piston and pump cylinder. They are often used in households, and existing water pumps are generally driven by motors. When commercial buildings have sewage lifting equipment maintenance or power outages, the sewage cannot be lifted, and there is a risk of pipe expansion or overflow. Therefore, based on this demand, a set of emergency devices has been improved to eliminate the risk of sewage overflow, pollute sewage pits and equipment, and reduce unnecessary losses. Utility Model Content

[0004] The purpose of the utility model is to provide a manual diaphragm pump in order to solve the above-mentioned problem.

[0005] The technical solution adopted by the utility model is as follows: a manual diaphragm pump, including a water pump body, characterized in that: an end cover is installed above the water pump body, a water storage cavity is integrated inside the water pump body, a water inlet and a drain are integrated at both ends of the water pump body, and a check baffle A and a check baffle B are rotatably connected inside the water inlet and the drain;

[0006] A piston is slidably installed inside the water pump body through a water seal, a diaphragm is clamped at the bottom of the piston through a clamping plate, the diaphragm is tightly fitted around the water storage cavity, a rocker arm is rotatably connected to the bottom of the piston, a handle lever is movably connected to one end of the rocker arm, and a compensating piece is rotatably connected to the other end of the rocker arm, and the compensating piece is rotatably connected to the end cover.

[0007] Wherein, an adjusting bolt is rotatably connected to the end cover.

[0008] Among them, the water inlet and the drain outlet are both equipped with protrusions that function as a check baffle A and a check baffle B, and the rotation angle of the check baffle A and the check baffle B is 90°.

[0009] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0010] 1. In the utility model, the rocker arm is pressed up and down to drive the piston to move up and down, and the piston discharges the water inside the water chamber, and the purpose of manual drainage is achieved by reciprocating. The manual equipment does not require the use of electricity, eliminates the risk of sewage overflow, pollutes the sewage pit and equipment, and reduces unnecessary losses.

[0011] 2. In the utility model, this design can be applied to civil air defense emergency drainage matching, and the baffle-type non-return device is more flexible and convenient for flat installation or hanging installation, which makes the application range of the device wider. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the flat-mounted piston in the upward movement state of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the flat-mounted piston in the utility model in the downward movement state;

[0014] Figure 3 This is a schematic diagram of the structure of the utility model in which the piston is mounted upward;

[0015] Figure 4 This is a schematic diagram of the structure of the utility model in which the piston is mounted in a downward movement state.

[0016] Markings in the figure: 1. Water pump body; 101. End cover; 1011. Adjusting bolt; 102. Water inlet; 103. Discharge outlet; 2. Compensating part; 201. Rocker arm; 202. Handle lever; 3. Piston; 4. Diaphragm; 5. Water storage chamber; 6. Check baffle A; 7. Check baffle B. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] In the utility model:

[0019] Reference Figure 1-4 A manual diaphragm pump comprises a water pump body 1, an end cover 101 is installed on the water pump body 1, a water storage chamber 5 is integrated inside the water pump body 1, a water inlet 102 and a water outlet 103 are integrated at both ends of the water pump body 1, and a check baffle A6 and a check baffle B7 are rotatably connected inside the water inlet 102 and the water outlet 103;

[0020] A piston 3 is slidably installed inside the water pump body 1 through a water seal, a diaphragm 4 is clamped at the bottom of the piston 3 through a clamping plate, a rocker arm 201 is rotatably connected to the bottom of the piston 3, a handle lever 202 is movably connected to one end of the rocker arm 201, and a compensating member 2 is rotatably connected to the other end of the rocker arm 201. The compensating member 2 is rotatably connected to the end cover 101, and the compensating member 2 is used to compensate for the circular displacement generated at the tail of the rocker arm 201.

[0021] Furthermore, an adjusting bolt 1011 is rotatably connected to the end cover 101 , and the movement stroke of the piston 3 can be indirectly adjusted by adjusting the height of the adjusting bolt 1011 .

[0022] The diaphragm 4 is tightly fitted with the water storage chamber 5 on all sides, and the water inlet 102 and the drain outlet 103 are both equipped with protrusions that function as check baffles A6 and check baffles B7. The rotation angle of the check baffles A6 and check baffles B7 is 90°. The diaphragm 4 separates the water body inside the water storage chamber 5 from the piston 3. When the rocker arm 201 is pressed, the piston 3 is driven to move downward, and the piston 3 squeezes the water body inside the water chamber 5. At this time, the check baffle A6 blocks the water inlet 102, and the water pressure flushes the check baffle B7, opens the drain outlet 103, completes the drainage, pulls up the rocker arm 201, drives the piston 3 to move upward, and the piston 3 forms a negative pressure on the water body inside the water chamber 5. At this time, the check baffle B7 blocks the drain outlet 103, and the check baffle A6 opens to suck in the water outside the water inlet 102.

[0023] Working principle: First, connect the water inlet 102 and the drain outlet 103 to the water inlet pipe and the water outlet pipe. Then, by adjusting the height of the adjusting bolt 1011, the moving stroke of the piston 3 can be indirectly adjusted. Then, press the rocker arm 201 to drive the piston 3 to move downward. The piston 3 squeezes the water inside the water chamber 5. At this time, the check baffle A6 blocks the water inlet 102, and the water pressure flushes the check baffle B7 to open the drain outlet 103 to complete the drainage. Pull up the rocker arm 201 to drive the piston 3 to move upward. The piston 3 forms a negative pressure on the water inside the water chamber 5. At this time, the check baffle B7 blocks the drain outlet 103, and the check baffle A6 opens to suck in the water outside the water inlet 102. This reciprocating process achieves the purpose of manual drainage.

[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A manual diaphragm pump, comprising a water pump body (1), characterized in that: An end cover (101) is installed above the water pump body (1), a water storage chamber (5) is integrally provided inside the water pump body (1), a water inlet (102) and a water outlet (103) are integrally provided at both ends of the water pump body (1), and a non-return baffle A (6) and a non-return baffle B (7) are rotatably connected inside the water inlet (102) and the water outlet (103); A piston (3) is slidably mounted inside the water pump body (1) via a water seal, a diaphragm (4) is clamped at the bottom of the piston (3) via a clamping plate, a rocker arm (201) is rotatably connected to the bottom of the piston (3), a handle lever (202) is movably connected to one end of the rocker arm (201), and a compensating member (2) is rotatably connected to the other end of the rocker arm (201).

2. A manual diaphragm pump according to claim 1, characterized in that: The compensating member (2) is rotationally connected to the end cover (101).

3. A manual diaphragm pump according to claim 1, characterized in that: An adjusting bolt (1011) is rotatably connected to the end cover (101).

4. A manual diaphragm pump as claimed in claim 1, characterized in that: The diaphragm (4) is tightly fitted around the water storage cavity (5).

5. A manual diaphragm pump as claimed in claim 1, characterized in that: The water inlet (102) and the water outlet (103) are both equipped with protrusions that function as a non-return baffle A (6) and a non-return baffle B (7), and the rotation angle of the non-return baffle A (6) and the non-return baffle B (7) is 90 degrees.

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