Locking bolt for helipad

Abstract

The machine locking bolt comprises an upper layer plate, a lower layer plate, bolt rods, two sets of limiting connecting pieces and connecting piece adjusting pieces, the upper layer plate and the lower layer plate are connected through the multiple bolt rods and are both arranged on a stopping plane layer in advance, the limiting connecting pieces are arranged in the limiting connecting pieces, and the connecting piece adjusting pieces are arranged in the limiting connecting pieces. The plurality of rollers are symmetrically arranged on the upper surface of the parking plane layer; the limiting connecting piece comprises a supporting frame and a buckle, the two ends of the supporting frame are fixedly connected with the bolt rods located on the same plane, and the buckle is rotationally installed in the middle of the supporting frame. According to the locking device, the aircraft support is limited by rotating the buckle, then the adjusting stud is rotated, so that the T-shaped rod drives the buckle to descend to be tightly pressed on the aircraft support, the connection tightness between the buckle and the aircraft support is improved, and the locking effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of locking bolts, in particular to a locking bolt for a helicopter landing pad. Background Art

[0002] The currently used apron locking bolt embedded parts adopt single positioning plates, which are embedded in the apron surface concrete before concrete pouring. After the concrete is cured and reaches the design strength, the locking bolt is fixed to the embedded parts with bolts.

[0003] The existing Chinese utility model patent "A helipad locking bolt assembly" with application number 202222148928.7 discloses that "the two ends of the support frame 41 are respectively fixedly connected to the two bolt rods 3 located in the same plane; the buckle 42 is rotatably installed in the middle of the support frame 41, and the aircraft bracket is limited by rotating the buckle 42." Considering that the buckle limits the aircraft bracket by rotation, it is necessary to leave a movable space between the buckle and the aircraft bracket to prevent the buckle from being unable to be connected to the aircraft bracket. However, the existence of the movable space will also reduce the tightness of the connection between the buckle and the aircraft bracket, thereby affecting the locking effect. Utility Model Content

[0004] The purpose of the utility model is to solve the technical problems mentioned in the above background technology and to propose a locking bolt for a helicopter landing pad.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A locking bolt for a helicopter landing pad, comprising an upper plate, a lower plate, a bolt rod, a limit connector and a connector adjustment member, wherein the upper plate and the lower plate are connected by a plurality of the bolt rods, the upper plate and the lower plate are both preset on a parking plane layer, and the limit connector is provided in two groups and symmetrically arranged on the upper surface of the parking plane layer;

[0007] The limit connecting member includes a support frame and a buckle, the two ends of the support frame are respectively fixedly connected to the bolt rods located in the same plane, the buckle is rotatably installed in the middle of the support frame, and a plurality of water leakage holes are opened on the bottom side of the support frame;

[0008] The connector adjustment piece includes an adjusting stud, a T-rod and a support plate. The support frame is fixedly connected to a support plate arranged on both sides of the buckle. A through groove and a sliding groove are provided on the support plate. The vertical end of the horizontally placed T-rod slides in the sliding groove. The buckle passes through the through groove and rotates in cooperation with the vertical end of the T-rod. The adjusting stud is rotatably installed on the support frame and passes through the horizontal end of the T-rod.

[0009] As a further description of the above technical solution:

[0010] The shutdown plane layer includes a concrete layer and a backfill soil layer. The upper plate is arranged inside the concrete layer and flush with the upper surface of the concrete layer. The lower plate is arranged on the upper surface of the backfill soil layer.

[0011] As a further description of the above technical solution:

[0012] A steel mesh is arranged inside the concrete layer.

[0013] As a further description of the above technical solution:

[0014] One end of the bolt rod is fixedly connected to the lower plate, and the other end passes through the upper plate and is connected to the limiting connector.

[0015] As a further description of the above technical solution:

[0016] There are multiple bolt rods, which are arranged between the upper plate and the lower plate in a surrounding and equidistant manner.

[0017] As a further description of the above technical solution:

[0018] It also includes an electrostatic release rod and a grounded galvanized round steel, which are both arranged between the upper plate and the lower plate and preset inside the concrete layer, and the grounded galvanized round steel is welded to the bolt rod.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effect of the utility model is: first, the aircraft bracket is limited by rotating the buckle, and then, the adjustment stud is rotated to make the T-bar drive the buckle to descend and press tightly on the aircraft bracket, thereby improving the tightness of the connection between the buckle and the aircraft bracket and improving the locking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The overall structural diagram of a helicopter landing pad locking bolt provided in accordance with an embodiment of the utility model is shown;

[0021] Figure 2 Shows Figure 1 The enlarged schematic diagram of point A in the middle;

[0022] Figure 3 Shows Figure 1 A magnified schematic diagram of point B in the middle.

[0023] Legend:

[0024] 1. Upper plate; 2. Lower plate; 3. Bolt rod; 41. Support frame; 411. Leakage hole; 42. Buckle; 51. Concrete layer; 52. Backfill soil layer; 6. Grounded galvanized round steel; 7. Static electricity release rod; 81. Adjustment stud; 82. T-bar; 83. Support plate; 831. Through groove; 832. Slide groove. DETAILED DESCRIPTION

[0025] 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 of 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.

[0026] See also Figure 1-3 The utility model provides a technical solution: a locking bolt for a helicopter pad, comprising an upper plate 1, a lower plate 2, a bolt rod 3, a limiting connector and a connector adjusting member, one end of the bolt rod 3 is fixedly connected to the lower plate 2, and the other end passes through the upper plate 1 and is connected to the limiting connector to enhance the stability of the limiting connector 4, a plurality of bolt rods 3 are provided, and are equidistantly arranged between the upper plate 1 and the lower plate 2 to ensure that the forces around the upper plate 1 and the lower plate 2 are relatively uniform, and a plurality of water leakage holes 411 are provided on the bottom side of the support frame 41 to prevent rainwater from accumulating in the support frame 41 for a long time and corroding the support frame 41, thereby improving the service life of the support frame 41.

[0027] Specifically, Figure 1 As shown, the shutdown plane layer includes a concrete layer 51 and a backfill soil layer 52. The upper plate 1 is arranged inside the concrete layer 51 and is flush with the upper surface of the concrete layer 51. The upper plate 1 is poured with concrete so that the concrete is flush with the upper surface of the upper plate 1 to facilitate subsequent installation. The lower plate 2 is arranged on the upper surface of the backfill soil layer 52, that is, the lower plate 2 is leveled on the upper surface of the backfill soil layer 51. A steel mesh is provided inside the concrete layer 51 to increase the strength of the concrete layer 52.

[0028] By providing an upper plate 1 and a lower plate 2, leveling between the two layers is achieved, thereby increasing the stability thereof, and by providing a bolt rod 3, the tightness of the connection between the upper plate 1 and the lower plate 2 is improved, and the fixation is performed by pre-embedding. Compared with the prior art method of pre-setting only by a single plate, this method is more stable, thereby effectively preventing the occurrence of pre-embedding deviations caused by vibrations due to shaking or other factors.

[0029] Specifically, Figure 1As shown, there are two groups of limit connectors, which are symmetrically arranged on the upper surface of the parking plane layer, for fixing the helicopter. By setting two limit connectors, the two sides of the aircraft are limited and fixed to improve the stability of the aircraft parking.

[0030] The limiting connector includes a support frame 41 and a buckle 42. Both ends of the support frame 41 are fixedly connected to the bolt rod 3 located in the same plane. The buckle 42 is rotatably installed in the middle of the support frame 41. By rotating the buckle 42, the aircraft bracket is limited.

[0031] It should be noted that the buckle 42 provided in this embodiment is a stainless steel curved structure. In actual application, it is adjusted according to the shape of the aircraft bracket. For example, if the aircraft bracket is square, the buckle 42 uses a square structure. The shape of the buckle 42 is not limited.

[0032] Specifically, Figure 2 As shown, the connector adjustment member includes an adjustment stud 81, a T-shaped rod 82 and a support plate 83. The support frame 41 is fixedly connected with the support plate 83 arranged on both sides of the buckle 42. The support plate 83 is provided with a through slot 831 and a slide slot 832. The vertical end of the horizontal T-shaped rod 82 is slidably matched with the slide slot 832. The buckle 42 passes through the through slot 831 and rotates with the vertical end of the T-shaped rod 82. The adjustment stud 81 is rotatably installed on the support frame 41 and passes through the horizontal end of the T-shaped rod 82. After the buckle 42 is rotatably sleeved on the aircraft bracket.

[0033] Specifically, Figure 1 As shown, it also includes an electrostatic release rod 7 and a grounded galvanized round steel 6. The electrostatic release rod 7 and the grounded galvanized round steel 6 are both arranged between the upper plate 1 and the lower plate 2, and are preset inside the concrete layer 51. The grounded galvanized round steel 6 is welded to the bolt rod 3 to achieve an anti-static function.

[0034] Working principle: When in use, firstly, the aircraft bracket is limited by rotating the buckle 42, and then, the adjusting stud 81 is rotated so that the T-bar 82 drives the buckle 42 to descend and press tightly on the aircraft bracket, thereby improving the tightness of the connection between the buckle 42 and the aircraft bracket and improving the locking effect.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A locking bolt for a helicopter landing pad, comprising an upper plate (1), a lower plate (2), a bolt rod (3), a limit connector and a connector adjusting member, characterized in that: The upper plate (1) and the lower plate (2) are connected via a plurality of bolt rods (3); the upper plate (1) and the lower plate (2) are both preset on the parking plane layer; two groups of the position-limiting connectors are provided and are symmetrically arranged on the upper surface of the parking plane layer; The position-limiting connecting member comprises a support frame (41) and a buckle (42), the two ends of the support frame (41) are respectively fixedly connected to the bolt rods (3) located in the same plane, the buckle (42) is rotatably mounted on the middle part of the support frame (41), and a plurality of water leakage holes (411) are opened on the bottom side of the support frame (41); The connecting member adjusting member comprises an adjusting stud (81), a T-shaped rod (82) and a supporting plate (83); the supporting frame (41) is fixedly connected with the supporting plate (83) arranged on both sides of the buckle (42); a through groove (831) and a sliding groove (832) are provided on the supporting plate (83); the vertical end of the horizontally placed T-shaped rod (82) is slidably matched with the sliding groove (832); the buckle (42) passes through the through groove (831) and is rotationally matched with the vertical end of the T-shaped rod (82); the adjusting stud (81) is rotatably mounted on the supporting frame (41) and passes through the horizontal end of the T-shaped rod (82).

2. The helicopter pad lock bolt according to claim 1, characterized in that: The shutdown plane layer comprises a concrete layer (51) and a backfill soil layer (52); the upper plate (1) is arranged inside the concrete layer (51) and flush with the upper surface of the concrete layer (51); and the lower plate (2) is arranged on the upper surface of the backfill soil layer (52).

3. The helicopter pad lock bolt according to claim 2, characterized in that: A steel mesh is provided inside the concrete layer (51).

4. The helicopter pad lock bolt according to claim 3, characterized in that: One end of the bolt rod (3) is fixedly connected to the lower plate (2), and the other end passes through the upper plate (1) and is connected to the limiting connector.

5. The helicopter pad lock bolt according to claim 4, characterized in that: A plurality of bolt rods (3) are provided and are arranged in a surrounding and equidistant manner between the upper plate (1) and the lower plate (2).

6. The helicopter pad lock bolt according to claim 5, characterized in that: It also includes an electrostatic release rod (7) and a grounded galvanized round steel (6), wherein the electrostatic release rod (7) and the grounded galvanized round steel (6) are both arranged between the upper plate (1) and the lower plate (2), and are preset inside the concrete layer (51), and the grounded galvanized round steel (6) is welded to the bolt rod (3).

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