A pneumatic grouting pump air control system

Abstract

The application discloses a pneumatic grouting pump air control system, which comprises a cylinder, a total air inlet pipe and an air control module. The cylinder comprises a cylinder body and a piston. The air control module comprises a two-position five-way single air control reversing valve, a two-position two-way valve I, a two-position two-way valve II, a pressure rod I of the two-position two-way valve I being telescopically connected to an end wall at one end of the cylinder body, a pressure rod II of the two-position two-way valve II being telescopically connected to an end wall at the other end of the cylinder body, a first air inlet being arranged at an outer end of a side wall of a first air cavity, and a second air inlet being arranged at an outer end of a side wall of a second air cavity. The pneumatic grouting pump can be automatically reciprocally controlled without a controller, the error rate is low, and the overall structure is simple.

Description

Technical Field

[0001] This invention relates to the field of reciprocating pump technology, and more specifically to a pneumatic control system for a pneumatic grouting pump. Background Technology

[0002] Currently, the most commonly used pneumatic grouting pumps are single-liquid pneumatic grouting pumps. There are very few types of reciprocating pneumatic grouting pumps, and the pneumatic control system cannot achieve automatic reciprocating control according to the working conditions of the grouting pump. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a pneumatic control system for a pneumatic grouting pump.

[0004] The technical solution of the present invention to solve the above problems is: a pneumatic grouting pump air control system, including a cylinder, a main air inlet pipe, and an air control module;

[0005] The cylinder includes a cylinder body and a piston. The piston is movably connected to the cylinder body and divides the interior of the cylinder body into a first air chamber and a second air chamber. At least one end of the piston is connected to a piston rod, and the outer ends of the piston rod extend out of the cylinder body. The piston rod is sealed to the cylinder body. The pneumatic control module includes a two-position five-way single pneumatic control directional valve, a two-position two-way valve I, and a two-position two-way valve II. The pressure rod I of the two-position two-way valve I is telescopically connected to the end wall of one end of the cylinder body, and the pressure rod II of the two-position two-way valve II is telescopically connected to the end wall of the other end of the cylinder body. The outer end of the side wall of the first air chamber is provided with a first air inlet, and the outer end of the side wall of the second air chamber is provided with a second air inlet.

[0006] The two-position five-way single air-controlled reversing valve includes an air inlet P, a first air outlet R, a second air outlet S, a first working port A, a second working port B, and an air control port. The main air inlet pipe is connected to the air inlet P, and the first working port A and the second working port B are respectively connected to the first air inlet and the second air inlet through air pipes.

[0007] The air inlet II of the two-position two-way valve II is connected to the main air inlet pipe through the first air pipe, and the air outlet II of the two-position two-way valve II is connected to the air inlet I of the two-position two-way valve I through the second air pipe. The air control port of the two-position five-way single air-controlled reversing valve is connected to the second air pipe through the third air pipe 208.

[0008] Furthermore, the piston is connected to a first piston rod and a second piston rod at its two ends, respectively.

[0009] The present invention has the following beneficial effects: This invention provides a pneumatic grouting pump control system that can realize automatic reciprocating control of the pneumatic grouting pump without the need for a controller, has a low error rate, and a simple overall structure. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the structure of Embodiment 2 of the present invention; In the diagram: 101-Cylinder body, 102-Piston, 103-First piston rod, 104-Second piston rod, 105-First air chamber, 106-Second air chamber, 107-First air inlet, 108-Second air inlet; 201 - Two-position five-way single-pneumatic directional control valve; 202 - Two-position two-way valve I; 203 - Two-position two-way valve II; 204 - Pressure rod I; 205 - Pressure rod II; 206 - First air pipe; 207 - Second air pipe; 208 - Third air pipe; 209 - Main air inlet pipe. Detailed Implementation

[0011] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0012] Example 1 like Figure 1 As shown, a pneumatic grouting pump air control system includes a cylinder, a main air inlet pipe 209, and an air control module; The cylinder includes a cylinder body 101, a piston 102, a first piston rod 103, and a second piston rod 104. The piston 102 is movably connected inside the cylinder body 101 and divides the interior of the cylinder body 101 into a first air chamber 105 and a second air chamber 106. The first piston rod 103 and the second piston rod 104 are respectively connected to both ends of the piston 102. The outer ends of the first piston rod 103 and the second piston rod 104 extend out of the cylinder body 101 and are sealed to the cylinder body 101. The pneumatic control module includes a two-position five-way single pneumatic control reversing valve 201, a two-position two-way valve I 202, and a two-position two-way valve II 203. The pressure rod I 204 of the two-position two-way valve I 202 is telescopically connected to the end wall of one end of the cylinder body 101, and the pressure rod II 205 of the two-position two-way valve II 203 is telescopically connected to the end wall of the other end of the cylinder body 101. The outer end of the side wall of the first air chamber 105 is provided with a first air inlet 107, and the outer end of the side wall of the second air chamber 106 is provided with a second air inlet 108. The pressure rod I 204 and the pressure rod II 205 are sealed to the end wall.

[0013] The two-position five-way single air-controlled reversing valve 201 includes an air inlet P, a first air outlet R, a second air outlet S, a first working port A, a second working port B, and an air control port. The main air inlet pipe 209 is connected to the air inlet P. The first working port A is connected to the second air inlet 108 through an air pipe, and the second working port B is connected to the first air inlet 107 through an air pipe.

[0014] The air inlet II of the two-position two-way valve II 203 is connected to the main air inlet pipe 209 through the first air pipe 206, and the air outlet II of the two-position two-way valve II 203 is connected to the air inlet I of the two-position two-way valve I 202 through the second air pipe 207. The air control port of the two-position five-way single air-controlled reversing valve 201 is connected to the second air pipe 207 through the third air pipe 208.

[0015] like Figure 1 As shown, air enters through the main air intake pipe 209 and enters the first air chamber 105 through the second working port B of the two-position five-way single-pneumatic control directional valve 201. This pushes the piston 102 to the right, and the air discharged from the second air intake port 108 is discharged through the first air outlet R of the two-position five-way single-pneumatic control directional valve 201. This continues until the piston 102 moves to the far right, pushing the pressure rod II 205 of the two-position two-way valve II 203 to the right. The two-position two-way valve II 203 opens, and air enters from the first air pipe 206 into the second air pipe 207, and then into the pneumatic control port of the two-position five-way single-pneumatic control directional valve 201. This pushes the valve core of the two-position five-way single-pneumatic control directional valve 201 to the right, and then air enters from the first working port. A enters the second air chamber 106, pushing the piston 102 to the left. The air discharged from the first air inlet 107 is discharged through the first air outlet S of the two-position five-way single-pneumatic control valve 201. The two-position two-way valve II 203 automatically resets without force. However, there is no exhaust in the second air pipe 207, so the two-position five-way single-pneumatic control valve 201 will not reset until the piston 102 moves to the leftmost end, pushing the pressure rod I 204 of the two-position two-way valve I 202 to the left. The two-position two-way valve I 202 opens, and the air in the second air pipe 207 is discharged from the air outlet II of the two-position two-way valve I 202. The two-position five-way single-pneumatic control valve 201 resets, completing one cycle of automatic control.

[0016] Example 2 like Figure 2 As shown, the difference between this embodiment and Embodiment 1 is that: The pneumatic control port of the two-position five-way single pneumatic control directional valve 201 is on the right side. The first working port A of the two-position five-way single pneumatic control directional valve 201 is connected to the first air inlet 107 through an air pipe, and the second working port B is connected to the second air inlet 108 through an air pipe.

[0017] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A pneumatic control system for a pneumatic grouting pump, characterized in that: Includes cylinder, main intake manifold, and pneumatic control module; The cylinder includes a cylinder body (101) and a piston (102). The piston (102) is movably connected inside the cylinder body (101). The piston (102) divides the inside of the cylinder body (101) into a first air chamber (105) and a second air chamber (106). At least one end of the piston (102) is connected to a piston rod. The outer ends of the piston rod extend out of the cylinder body (101) and are sealed to the cylinder body (101). The pneumatic control module includes a two-position five-way single pneumatic control reversing valve (201), a two-position two-way valve I (202), and a two-position two-way valve II (203). The pressure rod I (204) of the two-position two-way valve I (202) is telescopically connected to the end wall of one end of the cylinder body (101), and the pressure rod II (205) of the two-position two-way valve II (203) is telescopically connected to the end wall of the other end of the cylinder body (101). The outer end of the side wall of the first air chamber (105) is provided with a first air inlet (107), and the outer end of the side wall of the second air chamber (106) is provided with a second air inlet (108). The two-position five-way single air-controlled reversing valve (201) includes an air inlet P, a first air outlet R, a second air outlet S, a first working port A, a second working port B, and an air control port. The main air inlet pipe is connected to the air inlet P. The first working port A and the second working port B are respectively connected to the first air inlet (107) and the second air inlet (108) through air pipes. The air inlet II of the two-position two-way valve II (203) is connected to the main air inlet pipe through the first air pipe (206), the air outlet II of the two-position two-way valve II (203) is connected to the air inlet I of the two-position two-way valve I (202) through the second air pipe (207), and the air control port of the two-position five-way single air control reversing valve (201) is connected to the second air pipe (207) through the third air pipe (208).

2. The pneumatic grouting pump air control system as described in claim 1, characterized in that: The piston (102) is connected to the first piston rod (103) and the second piston rod (104) at its two ends respectively.

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