CN205013217U - Vertical manual pump of two effects - Google Patents

Abstract

A double-acting vertical manual pump, which includes a manual pump oil tank (1), characterized in that the manual pump oil tank (1) is connected to the oil inlet chamber (A) of the oil cylinder (10) through the oil inlet check valve (2) ), the piston (7) is equipped with a piston check valve (5) connected to the oil inlet chamber (A) and the oil outlet chamber (B) of the oil cylinder (10), and the piston (7) is connected with a drive to move it left and right The pull rod (6), the oil outlet of the piston check valve (5) communicates with the oil outlet chamber (B), and the oil outlet chamber (B) works towards the oil outlet (11) through the oil outlet check valve (8) Oil cylinder (9) supplies oil. The utility model has the advantages of simple structure, high efficiency and less land occupation.

Description

Double acting vertical hand pump

technical field

The utility model relates to a manual pump, in particular to a vertical manual pump, in particular to a double-acting vertical manual pump.

Background technique

At present, as a simple and convenient hydraulic power source, the manual hydraulic pump is widely used in many fields such as shipbuilding industry, coal mining machinery, petrochemical, metallurgy, electric power and heavy machinery. It is small in size, light in weight, easy to carry and strong in safety And other advantages are accepted by the majority of users. However, at present, most of the manual pumps used in China are unidirectional, and they are installed horizontally, which has the problems of large footprint and low efficiency. Therefore, a double-acting vertical manual pump is designed, and the bottom vertical Installation, especially suitable for use in equipment that requires vertical installation of manual pumps. When the pull rod swings back and forth, pressure oil can be generated. The appearance is beautiful and the work efficiency is improved.

Utility model content

The purpose of this utility model is to design a double-action vertical manual pump capable of bidirectional oil supply for the problem that the existing manual pump is installed horizontally and cannot realize two-way oil supply.

The technical scheme of the utility model is:

A double-acting vertical manual pump, which includes a manual pump oil tank 1, characterized in that the manual pump oil tank 1 communicates with the oil inlet chamber A of the oil cylinder 10 through the oil inlet check valve 2, and the piston 7 is equipped with a connecting The piston check valve 5 of the oil inlet chamber A and the oil outlet chamber B of the oil cylinder 10, the piston 7 is connected with a pull rod 6 that drives it to move left and right, the oil outlet of the piston check valve 5 is connected with the oil outlet chamber B, and the oil outlet Chamber B supplies oil to the working cylinder 9 through the oil outlet 11 of the oil outlet check valve 8 .

The oil storage chamber of the working oil cylinder 9 is connected to the hand pump oil tank 1 through a circuit, and an unloading valve 3 is installed on the circuit connecting the working oil cylinder 9 and the hand pump oil tank 1 .

A pressure-limiting circuit is connected between the oil outlet chamber B and the oil tank 1 of the manual pump, and a pressure-limiting valve 4 is installed on the pressure-limiting circuit.

The beneficial effects of the utility model:

The utility model adopts the vertical installation at the bottom, and is especially suitable for use in equipment that requires a manual pump vertical installation. When the pull rod swings back and forth, pressure oil can be generated, the appearance is beautiful, and the work efficiency is improved.

The utility model has the advantages of simple structure, high efficiency and less land occupation.

Description of drawings

Fig. 1 is a schematic diagram of the external structure of the utility model.

FIG. 2 is a side view of FIG. 1 .

Fig. 3 is a schematic view of the utility model in use.

Fig. 4 is the hydraulic principle diagram of the utility model.

detailed description

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

As shown in Figure 1-4.

A double-acting vertical manual pump, whose appearance is shown in Figures 1 and 2, which includes a manual pump oil tank 1, and is characterized in that the manual pump oil tank 1 passes through the oil inlet check valve 2 and the oil inlet chamber A of the oil cylinder 10 The piston 7 is equipped with a piston check valve 5 connecting the oil inlet chamber A and the oil outlet chamber B of the oil cylinder 10. The piston 7 is connected with a pull rod 6 that drives it to move left and right. The oil outlet of the piston check valve 5 is connected to the The oil outlet chamber B is connected, and the oil outlet chamber B supplies oil to the working oil cylinder 9 through the oil outlet 11 of the oil outlet check valve 8 . The oil storage chamber of the working oil cylinder 9 is connected to the hand pump oil tank 1 through a circuit, and an unloading valve 3 is installed on the circuit connecting the working oil cylinder 9 and the hand pump oil tank 1 . A pressure-limiting circuit is connected between the oil outlet chamber B and the oil tank 1 of the manual pump, and a pressure-limiting valve 4 is installed on the pressure-limiting circuit. As shown in Figure 4.

The working process of the present utility model is:

1. Close the unloading valve 3, push the pull rod 6 to the left, the piston rod 7 moves to the right, the oil inlet check valve 2 is opened, the A cavity is at low pressure, and the hydraulic oil in the manual pump oil tank 1 enters the A cavity;

2. Pull the pull rod 6 to the right (see Figure 3), the piston rod 7 moves to the left, the oil inlet check valve 2 closes, and the hydraulic oil in the chamber A of the cylinder 10 opens the check valve 5 in the plunger and enters the cylinder 10 In the chamber B (Fig. 4), the oil outlet check valve 8 is opened, and the hydraulic oil enters the oil cylinder 9;

3. Push the pull rod 6 to the left, the piston rod 7 moves to the right, the oil inlet check valve 2 opens, the hydraulic oil in the oil tank 1 of the manual pump enters the chamber A, the check valve 5 in the plunger closes, and the hydraulic pressure in the chamber B The oil makes the oil outlet check valve 8 open and enters the working oil cylinder 9 through the oil outlet 11;

4. The function of the oil outlet check valve 8 is to prevent the hydraulic oil in the working cylinder 9 from returning to the chamber B, thereby maintaining the pressure of the hydraulic oil in the working cylinder 9;

5. When the unloading valve 3 is opened, the hydraulic oil in the working cylinder 9 returns to the oil tank 1 of the manual pump, and the working cylinder 9 resets;

6. The output pressure of the manual pump is limited by adjusting the spring pressure of the pressure limiting valve 4. When the output pressure is greater than the set pressure, the pressure limiting valve 4 opens, and the hydraulic oil returns to the oil tank 1 of the manual pump.

The parts not involved in the utility model are all the same as the prior art or can be realized by adopting the prior art.

Claims (3)

1. a double-action vertical hand-operated pump, it comprises hand pump fuel tank (1), it is characterized in that described hand pump fuel tank (1) is connected with the oil suction chamber (A) of oil cylinder (10) by line check valve (2), piston (7) is provided with the oil suction chamber (A) connecting oil cylinder (10) and the piston one-way valve (5) going out oil pocket (B), piston (7) is connected with and drives its pull bar moved left and right (6), the oil outlet of piston one-way valve (5) with go out oil pocket (B) and be connected, go out the oil outlet (11) of oil pocket (B) by oil outlet one-way valve (8) to operating cylinder (9) fuel feeding.

2. double-action vertical hand-operated pump according to claim 1, it is characterized in that being connected with hand pump fuel tank (1) by loop at the shoe cream room of described operating cylinder (9), the loop connecting operating cylinder (9) and hand pump fuel tank (1) is provided with unloading valve (3).

3. double-action vertical hand-operated pump according to claim 1, is characterized in that, going out between oil pocket (B) and hand pump fuel tank (1) to be connected with pressure limiting loop, this pressure limiting loop being provided with pressure-limit valve (4).