Anti-rotation vertical connection structure of ship lock reverse radial gate oil cylinder

Abstract

An anti-rotation vertical connecting structure of a ship lock reverse radial gate oil cylinder comprises a piston rod and a pull rod, a first limiting protrusion is arranged at the lower end of the piston rod, a second limiting protrusion is arranged at the upper end of the pull rod, and rotation stopping platforms are arranged on the side faces of the first limiting protrusion and the second limiting protrusion. The piston rod further comprises two semicircular enclosures, the lower end of the piston rod and the upper end of the pull rod are wrapped by the two semicircular enclosures, and rotation stopping grooves matched with the first limiting protrusion and the second limiting protrusion are formed in the inner sides of the semicircular enclosures. According to the anti-rotation vertical connecting structure of the ship lock reverse radial gate oil cylinder, the two semicircular surrounding devices are oppositely fixed, the piston rod and the pull rod are connected and fixed to prevent rotation, the service life of the pull rod is prolonged, and safety in the using process is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of ship lock reverse arc doors, in particular to a ship lock reverse arc door oil cylinder anti-rotation vertical connection structure. Background Art

[0002] The action of the ship lock anti-arc gate is achieved by the piston rod 1 of the top hydraulic cylinder driving the pull rod 2, and the pull rod 2 then drives the anti-arc gate. A connecting device is provided between the piston rod 1 and the pull rod 2 to make the pull rod and the piston rod rotatably connected. However, the working environment of the oil cylinder of the anti-arc gate of the Three Gorges permanent ship lock is complex, the perennial operation load is large, and the moisture corrosion phenomenon is serious. Long-term operation can easily cause the pull rod to rotate and dislocate or even be damaged, which brings great invisibility to subsequent maintenance and brings great safety hazards to the safe operation of the ship lock. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a vertical connection structure for preventing rotation of a ship lock reverse arc door oil cylinder, which can prevent relative rotation between a pull rod and a piston rod.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a ship lock reverse arc door oil cylinder anti-rotation vertical connection structure, including a piston rod and a pull rod, a first limiting protrusion is provided at the lower end of the piston rod, a second limiting protrusion is provided at the upper end of the pull rod, and a rotation-stopping platform is provided on the side of the first limiting protrusion and the second limiting protrusion;

[0005] It also includes a semicircular enclosure, which covers the lower end of the piston rod and the upper end of the pull rod. A rotation-stopping groove that matches the first limiting protrusion and the second limiting protrusion is provided on the inner side of the semicircular enclosure.

[0006] Preferably, a third limiting protrusion is provided above the first limiting protrusion, and a fourth limiting protrusion is provided below the second limiting protrusion; a first limiting groove matching with the third limiting protrusion and a second limiting groove matching with the fourth limiting protrusion are also provided on the inner side of the semicircular enclosure.

[0007] Preferably, a mounting hole is provided on the side wall of the semicircular enclosure, and the two semicircular enclosures are fixed together by bolts.

[0008] The utility model provides a ship lock reverse arc door oil cylinder anti-rotation vertical connection structure, which adopts two semicircular enclosing devices to fix oppositely, connects and fixes a piston rod and a pull rod to prevent rotation, prolongs the service life of the pull rod and ensures safety during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0010] Figure 1It is a structural schematic diagram of the prior art;

[0011] Figure 2 It is a schematic diagram of the structure of the utility model;

[0012] Figure 3 This is a schematic diagram of the structure of the utility model after the semicircular enclosure is installed;

[0013] Figure 4 It is a structural schematic diagram of the utility model when in use. DETAILED DESCRIPTION

[0014] like Figure 2 As shown, a ship lock reverse arc door oil cylinder anti-rotation vertical connection structure comprises a piston rod 1 and a pull rod 2, a first limiting protrusion 3 is provided at the lower end of the piston rod 1, a second limiting protrusion 4 is provided at the upper end of the pull rod 2, and a rotation-stopping platform 5 is provided on the side of the first limiting protrusion 3 and the second limiting protrusion 4;

[0015] It also includes a semicircular enclosure 6, which covers the lower end of the piston rod 1 and the upper end of the pull rod 2. A rotation-stopping groove 7 is provided on the inner side of the semicircular enclosure 6 to match the first limiting protrusion 3 and the second limiting protrusion 4. The rotation-stopping platform 5 and the rotation-stopping groove 7 are provided to prevent the piston rod 1 and the pull rod 2 from rotating relative to each other.

[0016] Preferably, a third limiting protrusion 8 is provided above the first limiting protrusion 3, and a fourth limiting protrusion 9 is provided below the second limiting protrusion 4; a first limiting groove 10 matched with the third limiting protrusion 8 and a second limiting groove 11 matched with the fourth limiting protrusion 9 are also provided on the inner side of the semicircular enclosure 6. Adding another set of limiting protrusions and limiting grooves plays a role in bearing force in the up and down directions, thereby increasing the stability of the device.

[0017] Preferably, a mounting hole 12 is provided on the side wall of the semicircular enclosure 6, and the two semicircular enclosures 6 are fixed together by bolts.

[0018] When the semicircular enclosure 6 covers the piston rod and the pull rod, the internal structure is as follows Figure 3 As shown, it plays the role of connection and anti-rotation.

[0019] When using, Figure 4 As shown, two semicircular enclosures 6 are connected to cover the lower end of the piston rod and the upper end of the pull rod.

[0020] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A ship lock reverse arc door oil cylinder anti-rotation vertical connection structure, comprising a piston rod (1) and a pull rod (2), characterized in that: A first limiting protrusion (3) is provided at the lower end of the piston rod (1), a second limiting protrusion (4) is provided at the upper end of the pull rod (2), and a rotation-stopping platform (5) is provided on the side surfaces of the first limiting protrusion (3) and the second limiting protrusion (4); It also includes a semicircular enclosure (6), wherein the two semicircular enclosures (6) cover the lower end of the piston rod (1) and the upper end of the pull rod (2), and a rotation-stopping groove (7) matching with the first limiting protrusion (3) and the second limiting protrusion (4) is provided on the inner side of the semicircular enclosure (6).

2. According to claim 1, a ship lock reverse arc door oil cylinder anti-rotation vertical connection structure is characterized by: A third limiting protrusion (8) is provided above the first limiting protrusion (3), and a fourth limiting protrusion (9) is provided below the second limiting protrusion (4); a first limiting groove (10) matching with the third limiting protrusion (8) and a second limiting groove (11) matching with the fourth limiting protrusion (9) are also provided on the inner side of the semicircular enclosure (6).

3. According to claim 1 or 2, a ship lock reverse arc door oil cylinder anti-rotation vertical connection structure is characterized in that: A mounting hole (12) is provided on the side wall of the semicircular enclosure (6), and the two semicircular enclosures (6) are fixed together by bolts.

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