Oil cylinder of grouting machine

Abstract

The utility model discloses a grouting machine oil cylinder which comprises a cylinder body, a connecting flange and a material storage cylinder which are sequentially connected, a sealing cover is arranged at the end, away from the connecting flange, of the material storage cylinder, a protruding connector is arranged in the middle of the face, away from the material storage cylinder, of the sealing cover, a first material opening is formed in the middle of the sealing cover and communicated with the connector, and a gland is arranged on the connector in a sleeved mode. The gland is provided with a second material opening, a sealing ball and a spring are arranged in the connector, the sealing ball can be matched with the first material opening and the second material opening, and the diameter of the spring is larger than that of the first material opening and that of the second material opening. Through the improvements, oil leakage can be effectively prevented, the operation convenience and safety are improved, and the grouting operation is more efficient and stable.

Description

Technical Field

[0001] The utility model relates to an oil cylinder, in particular to an oil cylinder for a grouting machine. Background Art

[0002] The conventional grouting machine oil cylinder is usually composed of a cylinder body, a connecting flange and a storage cylinder, and is used to reinforce and repair concrete structures in construction projects. However, the conventional design has some problems, such as oil leakage during grouting and inconvenient operation. In order to solve these problems and improve the performance and reliability of the grouting machine, the present invention proposes an improved grouting machine oil cylinder structure. Utility Model Content

[0003] In order to solve the above problems, the following technical solutions are proposed:

[0004] A grouting machine oil cylinder comprises a cylinder body, a connecting flange and a material storage cylinder which are connected in sequence. A sealing cover is arranged at one end of the material storage cylinder away from the connecting flange. A protruding connecting head is arranged in the middle of a side of the sealing cover away from the material storage cylinder. A first material port is arranged in the middle of the sealing cover, and the first material port is connected to the connecting head. A pressure cover is arranged on the connecting head, and a second material port is arranged on the pressure cover. A sealing ball and a spring are arranged in the connecting head. The sealing ball can fit with the first material port and the second material port. The diameter of the spring is larger than the diameter of the first material port and the second material port.

[0005] Furthermore, a shaft seal is installed at the connection between the oil cylinder and the connecting flange, and also includes a push rod, which passes through the shaft seal. A first piston is arranged at one end of the push rod in the cylinder body, and a second piston is installed at the end of the push rod away from the cylinder body. The first piston slides in the cylinder body, and the second piston slides in the storage cylinder.

[0006] Furthermore, a first oil chamber is formed between the first piston and the bottom of the cylinder body, a second oil chamber is formed between the first piston and the shaft seal, a first oil port is provided on the side wall of the cylinder of the first oil chamber, and the first oil port is connected to the first oil chamber, a second oil port is provided on the side wall of the cylinder of the second oil chamber, and the second oil port is connected to the second oil chamber.

[0007] Furthermore, a cavity is formed between the shaft seal and the second piston, and a muffler is arranged on the side wall of the cavity connected to the flange.

[0008] Furthermore, a volume cavity is formed between the second piston and the sealing cover, and the first material port is connected to the volume cavity.

[0009] The beneficial effects of the utility model are as follows:

[0010] The grouting machine oil cylinder structure of the present invention is improved on the basis of the traditional structure, and new components such as a cover, a connector, and a gland are introduced, and functional components such as a first material port, a second material port, and a muffler are reasonably arranged. Through these improvements, oil leakage can be effectively prevented, the convenience and safety of operation are improved, and the grouting operation is made more efficient and stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] The description of the accompanying drawings is as follows: 1. Cylinder body; 111. First oil port; 112. Second oil port; 121. First oil chamber; 122. Second oil chamber; 2. Connecting flange; 21. Muffler; 22. Cavity; 3. Storage cylinder; 31. Volume chamber; 4. Cover; 41. First material port; 42. Connecting head; 5. Pressure cover; 51. Second material port; 61. First piston; 62. Second piston; 63. Shaft seal; 71. Spring; 72. Sealing ball. DETAILED DESCRIPTION

[0013] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0014] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0015] The utility model is further described below in conjunction with the accompanying drawings:

[0016] A grouting machine oil cylinder includes a cylinder body, a connecting flange, and a storage cylinder connected in sequence. A cover is provided at one end of the storage cylinder away from the connecting flange. A protruding connector is provided in the middle of a side of the cover away from the storage cylinder. A first material port is provided in the middle of the cover. The first material port is connected to the connector. A pressure cap is provided on the connector. The pressure cap is provided with a second material port. A sealing ball and a spring are provided in the connector. The sealing ball can fit with the first material port and the second material port. The diameter of the spring is larger than the diameter of the first material port and the second material port. A shaft seal is installed at the connection between the cylinder and the connecting flange. The oil cylinder also includes a push rod. The push rod passes through the shaft seal. A first piston is provided at one end of the push rod in the cylinder body. A second piston is provided at one end of the push rod away from the cylinder body. The first piston slides in the cylinder body, and the second piston slides in the storage cylinder. The first oil chamber is between the first piston and the bottom of the cylinder body, the second oil chamber is between the first piston and the shaft seal, a first oil port is provided on the side wall of the oil cylinder of the first oil chamber, the first oil port is connected to the first oil chamber, a second oil port is provided on the side wall of the oil cylinder of the second oil chamber, the second oil port is connected to the second oil chamber. There is a cavity between the shaft seal and the second piston, and a muffler is provided on the side wall of the connecting flange on the cavity. There is a volume chamber between the second piston and the cover, and the first material port is connected to the volume chamber.

[0017] The working principle of the utility model is as follows:

[0018] Before the oil cylinder works, the first piston is at the bottom of the oil cylinder; the second oil cylinder is at the bottom of the liquid storage cylinder; at this time, the position of the spring and the sealing ball is as follows Figure 1 shown.

[0019] Before work, oil enters the first oil chamber from the first oil port. At this time, the second piston gradually moves to a position close to the sealing cover. Then the gland is removed, and the positions of the spring and the sealing ball are swapped. At this time, the two ends of the spring are respectively in contact with the sealing cover and the sealing ball, and then the gland is installed.

[0020] When absorbing the slurry, the oil in the first oil chamber is discharged from the first oil port, and the second oil port is filled with oil to fill the second oil chamber. At this time, the second piston gradually moves toward the shaft sealing position, and the slurry enters the volume chamber through the second material port and the first material port. When the second piston is about to move to the shaft sealing position, stop absorbing the slurry, remove the gland, and replace the position of the spring and the sealing ball. At this time, the two ends of the spring are respectively against the gland and the sealing ball. Then move the second piston to the shaft sealing position.

[0021] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A grouting machine oil cylinder, comprising a cylinder body (1), a connecting flange (2), and a material storage cylinder (3) connected in sequence, wherein a sealing cover (4) is provided at one end of the material storage cylinder (3) away from the connecting flange (2), and characterized in that: A protruding connector (42) is provided in the middle of one side of the cover (4) away from the material storage cylinder (3); a first material opening (41) is provided in the middle of the cover (4); the first material opening (41) is communicated with the connector (42); a pressure cover (5) is sleeved on the connector (42); the pressure cover (5) is provided with a second material opening (51); a sealing ball (72) and a spring (71) are provided in the connector (42); the sealing ball (72) can fit with the first material opening (41) and the second material opening (51); the diameter of the spring (71) is larger than the diameters of the first material opening (41) and the second material opening (51).

2. A grouting machine cylinder according to claim 1, characterized in that: A shaft seal (63) is installed at the connection between the oil cylinder and the connecting flange (2), and the oil cylinder also includes a push rod, which passes through the shaft seal (63). A first piston (61) is arranged at one end of the push rod in the cylinder body (1), and a second piston (62) is installed at the end of the push rod away from the cylinder body (1). The first piston (61) slides in the cylinder body (1), and the second piston (62) slides in the storage cylinder (3).

3. A grouting machine oil cylinder according to claim 2, characterized in that: A first oil chamber (121) is formed between the first piston (61) and the bottom of the cylinder body (1), and a second oil chamber (122) is formed between the first piston (61) and the shaft seal (63). A first oil port (111) is provided on a side wall of the cylinder of the first oil chamber (121), and the first oil port (111) is communicated with the first oil chamber (121). A second oil port (112) is provided on a side wall of the cylinder of the second oil chamber (122), and the second oil port (112) is communicated with the second oil chamber (122).

4. A grouting machine oil cylinder according to claim 2, characterized in that: A cavity (22) is formed between the shaft seal (63) and the second piston (62), and a muffler (21) is provided on a side wall of the cavity (22) connected to the flange (2).

5. The grouting machine cylinder according to claim 2, characterized in that: A volume chamber (31) is provided between the second piston (62) and the sealing cover (4), and the first material port (41) is in communication with the volume chamber (31).

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