A mobile safety net support system for a heliport

Abstract

The utility model relates to a kind of movable safety net support system of heliport, including reinforced concrete pouring rectangular heliport, the outside of the perimeter of rectangular heliport four around is equipped with several groups of rectangular movable protective screen components;Movable protective screen component includes two groups of square tube, and two groups of square tube are fixedly connected with support frame between, and the upper end surface of support frame is fixedly connected with stainless steel net plate;Parallel with square tube and open upwards and be inserted between the slot steel of adjacent movable protective screen component, and slot steel is inserted with link pipe beam, and the inner end of link pipe beam and the inner end of square tube are hinged on slot steel by hinged shaft, and the inner end of slot steel is welded and fixed on embedded steel plate, and embedded steel plate is fixed in rectangular heliport.This safety net support system is by multiple movable protective screen components, and movable protective screen component can constitute safety net for the take-off and landing of helicopter;For when helicopter does not take off and land, the protective rail of roof.

Description

Technical Field

[0001] This utility model relates to the technical field of helipads, and more specifically to a movable safety net support system for helicopter helipads. Background Technology

[0002] Helipads are crucial facilities for the safe takeoff, landing, parking, and emergency rescue of helicopters. Many high-rise buildings currently have rooftop helipads, which can be constructed using steel components or reinforced concrete. Helipads typically have fixed safety nets installed, primarily to prevent falls of personnel and equipment and to protect against crosswinds. These nets are mainly used during helicopter takeoff and landing. However, when helicopters are parked on the helipad for extended periods without taking off, the safety nets serve other purposes. Therefore, it has been proposed that the safety nets be designed as a flip-up, movable structure. When the net is laid down, it functions as a safety net; when flipped up and upright, it forms a fence around the helipad, providing protection when helicopters are parked. Thus, a movable safety net structure needs to be designed, with corresponding locking mechanisms for both states. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by providing a movable safety net support system for helicopter landing pads. The safety net support system consists of multiple movable safety net components, which can form a safety net for helicopter take-off and landing, and also serve as a protective railing for people on the roof when the helicopter is not taking off or landing.

[0004] A movable safety net support system for a helicopter landing pad includes a rectangular landing pad made of reinforced concrete. Several sets of rectangular movable safety net components are installed on the outer perimeter of the rectangular landing pad. Fan-shaped fixed safety nets are fixedly connected to the outer perimeter of the four corners of the rectangular landing pad. The fixed safety nets and the movable safety net components form a rectangular ring safety net. The movable safety net component includes two sets of square tubes, and a support frame is fixedly connected between the two sets of square tubes. A stainless steel mesh plate is fixedly connected to the upper surface of the support frame.

[0005] A channel steel parallel to the square tube and with its opening facing upwards is inserted between adjacent dynamic protective net components. A connecting pipe beam is inserted inside the channel steel. The inner end of the connecting pipe beam and the inner end of the square tube are hinged to the channel steel via a hinge shaft. The inner end of the channel steel is welded and fixed to a pre-embedded steel plate, which is fixed within the rectangular parking apron. An inclined support connector is inserted inside the channel steel. The support connector includes an intermediate sleeve, with screws threaded to both ends of the intermediate sleeve. A hinge lug is formed at the end of the screw, and a hinge seat is hinged to the hinge lug via a pin. The hinge seat is fixed to the lower end face of the channel steel and the connecting pipe beam, respectively.

[0006] Two sets of stainless steel buckles are provided on the upper surface of the outer end of the connecting pipe beam. The connecting pipe beam is fixedly connected to the dynamic protective net components on both sides of the connecting pipe beam through the stainless steel buckles. A snap fastener is provided in the channel steel on the outer side of the connecting pipe beam. The snap fastener includes a hinged lug fixed in the channel steel. A stud is hinged in the hinged lug through a pin. A cylindrical snap fastener block is screwed on the stud. The snap fastener block presses against the snap plate. The snap plate is fixedly connected to the outer end of the connecting pipe beam.

[0007] Preferably, the support frame is composed of four angle irons forming a rectangular frame. The angle irons on both sides of the support frame are welded and fixed to the side wall of the square tube, and a support beam parallel to the square tube is welded and fixed to the middle of the support frame.

[0008] The stainless steel mesh is made of diamond-shaped stainless steel mesh, and the upper surface of the stainless steel mesh is flush with the upper surface of the square tube.

[0009] Preferably, the hinge shaft includes an optical shaft inserted into the connecting pipe beam, with both ends of the optical shaft passing through the two side walls of the channel steel and the square tube respectively and screwed with limit nuts, the limit nuts abutting against the side wall of the square tube.

[0010] Preferably, a pad is inserted and fixed inside the channel outside the channel steel, and the lower end face of the connecting pipe beam abuts against the pad; a ring-shaped rotating handle is formed on the upper end face of the snap-fit ​​block.

[0011] Preferably, one end of the screw on the support connector is formed with a cylindrical guide limiting head, the guide limiting head is inserted into the intermediate sleeve and abuts against the inner wall of the intermediate sleeve, and the two ends of the intermediate sleeve are fixed with internal threaded joints, and the screw is respectively screwed into the internal threaded joints at both ends of the intermediate sleeve.

[0012] The other end of the screw is formed with a smooth rod, and the end of the smooth rod is formed with a hinged lug.

[0013] Preferably, the guide rod is a round rod, the diameter of which is smaller than the diameter of the screw, and the diameter of the screw is smaller than the diameter of the guide limiting head; the length of the guide rod is smaller than the length of the screw.

[0014] Preferably, the stainless steel door latch is a sliding door latch, which includes a latch seat fixed to the connecting pipe beam. A latch plate is hinged to the latch seat by a T-shaped positioning pin. A locking seat is fitted on the latch plate, and a locking bolt is screwed onto the locking seat. The end of the locking bolt is inserted into the latch plate. The locking seat is fixed to the square tube of the dynamic protective net assembly.

[0015] The beneficial effects of this utility model are as follows:

[0016] This safety net support system consists of multiple dynamic safety net components, which can form a safety net for helicopter take-off and landing; and for protective railings on rooftops when helicopters are not taking off or landing. Attached Figure Description

[0017] Figure 1 This is a top view of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the dynamic protective net component of this utility model when used as a safety net;

[0019] Figure 3 This is a schematic diagram showing the connection between adjacent moving protective net components within this utility model;

[0020] Figure 4 This is a side view of the inner channel steel outer end snap-fit ​​connection of this utility model;

[0021] Figure 5 This is a top view schematic diagram of the locking connection between the outer end of the inner connecting pipe beam of this utility model;

[0022] Figure 6 This is a partial cross-sectional view of the internal support connector of this utility model;

[0023] Figure 7 This is a schematic diagram of the dynamic protective net assembly of this utility model when used as a fence;

[0024] In the diagram: 1. Rectangular helipad; 2. Dynamic protective netting assembly; 3. Connecting pipe beam; 4. Channel steel; 6. Support connector; 7. Embedded steel plate; 8. Stainless steel door latch; 9. Press fastener; 10. Clip plate; 11. Spacer block. Detailed Implementation

[0025] Example: See Figures 1 to 6 As shown, a movable safety net support system for a helicopter landing pad includes a rectangular landing pad 1 made of reinforced concrete. Several sets of rectangular movable safety net components 2 are respectively provided on the outer perimeter of the rectangular landing pad 1. Fan-shaped fixed safety nets are fixedly connected to the outer perimeter of the four corners of the rectangular landing pad 1. The fixed safety nets and the movable safety net components 2 form a rectangular ring safety net. The movable safety net component 2 includes two sets of square tubes 21. A support frame 22 is fixedly connected between the two sets of square tubes 21. A stainless steel mesh plate 23 is fixedly connected to the upper surface of the support frame 22.

[0026] A channel steel 4 parallel to the square tube 21 and with its opening facing upwards is inserted between adjacent dynamic protective net components 2. A connecting pipe beam 3 is inserted inside the channel steel 4. The inner end of the connecting pipe beam 3 and the inner end of the square tube 21 are hinged to the channel steel 4 through a hinge shaft 5. The inner end of the channel steel 4 is welded and fixed to a pre-embedded steel plate 7, which is fixed inside the rectangular parking apron 1. A support connector 6 is inserted obliquely inside the channel steel 4. The support connector 6 includes an intermediate sleeve 61. Both ends of the intermediate sleeve 61 are screwed with screw rods 62. The end of the screw rod 62 is formed with a hinged lug. The hinged lug is hinged to a hinge seat through a pin. The hinge seat is fixed inside the channel steel 4 and on the lower end face of the connecting pipe beam 3.

[0027] Two sets of stainless steel buckles 8 are provided on the upper surface of the outer end of the connecting pipe beam 3. The connecting pipe beam 3 is fixedly connected to the dynamic protective net assembly 2 on both sides of the connecting pipe beam 3 through the stainless steel buckles 8. A pressure fastener 9 is provided in the channel steel 4 on the outer side of the connecting pipe beam 3. The pressure fastener 9 includes a hinged lug 91 fixed in the channel steel 4. A stud 92 is hinged in the hinged lug 91 through a pin. A cylindrical pressure fastener block 93 is screwed on the stud 92. The pressure fastener block 93 presses against the snap-fit ​​plate 10. The snap-fit ​​plate 10 is fixedly connected to the outer end of the connecting pipe beam 3.

[0028] The support frame 22 is composed of four angle irons forming a rectangular frame. The angle irons on both sides of the support frame 22 are welded and fixed to the side wall of the square tube 21. A support beam 24 parallel to the square tube 21 is welded and fixed in the middle of the support frame 22. Its connecting tube beam 3 is also made of square tube and is flush with the upper end face of the square tube 21.

[0029] The stainless steel mesh plate 23 is made of diamond-shaped stainless steel mesh, and the upper end face of the stainless steel mesh plate 23 is flush with the upper end face of the square tube 21.

[0030] The hinge shaft 5 includes an optical shaft 51 inserted into the connecting pipe beam 3. The two ends of the optical shaft 51 pass through the two side walls of the channel steel 4 and the square tube 21 respectively and are screwed with limit nuts 52. The limit nuts 52 abut against the side wall of the square tube 21. One hinge shaft 5 can realize the connection between the square tube 21 and the connecting pipe beam 3 on the channel steel 4 by hinge.

[0031] A pad 11 is inserted and fixed inside the channel outside the channel steel 4, and the lower end face of the connecting pipe beam 3 abuts against the pad 11; a ring-shaped rotating handle 931 is formed on the upper end face of the snap fastener 93, and the pad 11 cooperates with the snap fastener 9 to make the connecting pipe beam 3 firmly fixed to the channel steel 4.

[0032] One end of the screw 62 on the support connector 6 is formed with a cylindrical guide limiting head 621. The guide limiting head 621 is inserted into the intermediate sleeve 61 and abuts against the inner wall of the intermediate sleeve 61. Internal threaded connectors 63 are inserted and fixed at both ends of the intermediate sleeve 61. The screw 62 is screwed into the internal threaded connectors 63 at both ends of the intermediate sleeve 61. The other end of the screw 62 is formed with a smooth rod 622, and the end of the smooth rod 622 is formed with a hinged lug. When the screw 62 on the support connector 6 is screwed and fixed to the intermediate sleeve 61, the connecting pipe beam 3 is in a flipped and upright state, thereby realizing the positioning of the dynamic protective net assembly 2 when it is flipped and upright. Figure 7 As shown;

[0033] When the connecting pipe beam 3 is lowered into the channel steel 4, it is fixed and positioned by the aforementioned snap fastener 9; the screw 62 on its supporting connector 6 is set inside the intermediate sleeve 61 and is not screwed to the intermediate sleeve 61. The advantage of the above structural design is that it can greatly facilitate the flipping and positioning of the dynamic protective net assembly 2.

[0034] The optical rod 622 is a round rod, and the diameter of the optical rod 622 is smaller than the diameter of the screw 62, which is smaller than the diameter of the guide limiting head 621; the length of the optical rod 622 is smaller than the length of the screw 62.

[0035] The stainless steel door latch 8 is a sliding door latch. The stainless steel door latch 8 includes a door latch seat fixed to the connecting pipe beam 3. A latch plate is hinged to the door latch seat by a T-shaped positioning pin. A locking seat is fitted on the latch plate. A locking bolt is screwed onto the locking seat. The end of the locking bolt is inserted into the latch plate. The locking seat is fixed to the square tube 21 of the moving protective net assembly 2. During the flipping and adjustment process of the moving protective net assembly 2, its stainless steel door latch 8 can be opened. That is, the positioning connecting pipe beam 3 is flipped first, and then the individual moving protective net assembly 2 is flipped and locked to the connecting pipe beam 3. It is not necessary to flip all the moving protective net assemblies 2 on one side of the rectangular helipad 1 at the same time, which can greatly facilitate the construction of the moving protective net assembly 2 into a person-accessible roof protective railing.

[0036] Working principle: This structure is a movable safety net support system for helicopter landing pads. The technical features of the safety net support system are reflected in the structure of the movable safety net component 2 and its connection structure with the rectangular landing pad 1.

[0037] like Figure 2 As shown, the dynamic protective net assembly 2 is in a laid-down state. The dynamic protective net assembly 2 is connected to the connecting pipe beam 3 by a stainless steel door buckle 8. The connecting pipe beam 3 is fixedly connected to the channel steel 4 by a pressure fastener 9. This allows the dynamic protective net assembly 2 to work with the fixed protective net to form a rectangular ring safety net, and the channel steel 4 provides effective support for the safety net.

[0038] By opening the snap fastener 9 and the stainless steel door latch 8, the connecting pipe beam 3 can be flipped and erected first, and the connecting pipe beam 3 can be positioned and supported by the support connector 6; then the moving protective net assembly 2 can be flipped, and the stainless steel door latch 8 can be used to fix the moving protective net assembly 2 and the connecting pipe beam 3 together; thus, its safety net can be transformed into a protective railing structure for use on an accessible roof.

[0039] The embodiments described above are illustrative of the present invention and are not intended to limit the present invention. Any person skilled in the art can modify the embodiments without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be as set forth in the claims.

Claims

1. A movable safety net support system for a heliport, comprising a reinforced concrete poured rectangular heliport (1), the outer side of the perimeter of the rectangular heliport (1) is provided with a plurality of groups of rectangular movable protective net assemblies (2), the outer side of the four corners of the rectangular heliport (1) is fixedly connected with a fan-shaped fixed protective net, and the fixed protective net and the movable protective net assemblies (2) form a rectangular annular safety net; characterized in that: The dynamic protective net assembly (2) includes two sets of square tubes (21), a support frame (22) is fixedly connected between the two sets of square tubes (21), and a stainless steel mesh plate (23) is fixedly connected to the upper surface of the support frame (22). A channel steel (4) parallel to the square tube (21) and with its opening facing upward is inserted between adjacent dynamic protective net components (2). A connecting pipe beam (3) is inserted inside the channel steel (4). The inner end of the connecting pipe beam (3) and the inner end of the square tube (21) are hinged to the channel steel (4) through a hinge shaft (5). The inner end of the channel steel (4) is welded and fixed to the embedded steel plate (7). The embedded steel plate (7) is fixed inside the rectangular parking apron (1). A support connector (6) is inserted obliquely inside the channel steel (4). The support connector (6) includes an intermediate sleeve (61). Both ends of the intermediate sleeve (61) are screwed with screw rods (62). The end of the screw rod (62) is formed with a hinged lug. The hinged lug is hinged to a hinged seat through a pin. The hinged seat is fixed inside the channel steel (4) and on the lower end face of the connecting pipe beam (3). Two sets of stainless steel door buckles (8) are provided on the upper surface of the outer end of the connecting pipe beam (3). The connecting pipe beam (3) is fixedly connected to the dynamic protective net assembly (2) on both sides of the connecting pipe beam (3) through the stainless steel door buckles (8). A pressure fastener (9) is provided in the channel steel (4) on the outer side of the connecting pipe beam (3). The pressure fastener (9) includes a hinge ear seat (91) fixed in the channel steel (4). A stud (92) is hinged in the hinge ear seat (91) through a pin shaft. A cylindrical pressure fastener block (93) is screwed on the stud (92). The pressure fastener block (93) presses against the snap-fit ​​plate (10). The snap-fit ​​plate (10) is fixedly connected to the outer end of the connecting pipe beam (3).

2. A portable helipad safety net support system according to claim 1, wherein: The support frame (22) is composed of four angle irons forming a rectangular frame. The angle irons on both sides of the support frame (22) are welded and fixed to the side wall of the square tube (21). A support beam (24) parallel to the square tube (21) is welded and fixed in the middle of the support frame (22). The stainless steel mesh plate (23) is made of diamond-shaped stainless steel mesh, and the upper end face of the stainless steel mesh plate (23) is flush with the upper end face of the square tube (21).

3. A portable helipad safety net support system according to claim 1, wherein: The hinge shaft (5) includes an optical shaft (51) inserted on the connecting pipe beam (3). The two ends of the optical shaft (51) pass through the two side walls of the channel steel (4) and the square tube (21) respectively and are screwed with limit nuts (52). The limit nuts (52) abut against the side wall of the square tube (21).

4. A portable helipad safety net support system according to claim 1, wherein: A pad (11) is inserted and fixed inside the channel outside the channel steel (4), and the lower end face of the connecting pipe beam (3) abuts against the pad (11); a ring-shaped rotating handle (931) is formed on the upper end face of the snap-fit ​​block (93).

5. A portable helipad safety net support system according to claim 1, wherein: One end of the screw (62) on the support connector (6) is formed with a cylindrical guide limiting head (621). The guide limiting head (621) is inserted into the intermediate sleeve (61) and abuts against the inner wall of the intermediate sleeve (61). The two ends of the intermediate sleeve (61) are fixed with internal threaded connectors (63). The screw (62) is screwed into the internal threaded connectors (63) at both ends of the intermediate sleeve (61). The other end of the screw (62) is formed with a smooth rod (622), and the end of the smooth rod (622) is formed with a hinged lug.

6. A portable helipad safety net support system according to claim 5, wherein: The light rod (622) is a round rod, the diameter of the light rod (622) is smaller than the diameter of the screw (62), and the diameter of the screw (62) is smaller than the diameter of the guide limit head (621); the length of the light rod (622) is smaller than the length of the screw (62).

7. The movable safety net support system for a helicopter landing pad according to claim 1, characterized in that: The stainless steel door latch (8) is a sliding door latch. The stainless steel door latch (8) includes a door latch seat fixed to the connecting pipe beam (3). A latch plate is hinged to the door latch seat by a T-shaped positioning pin. A lock latch seat is fitted on the latch plate. A locking bolt is screwed onto the lock latch seat. The end of the locking bolt is inserted into the latch plate. The lock latch seat is fixed to the square tube (21) of the dynamic protective net assembly (2).

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