Automatic stretching machine for hanging belt of pilot protection helmet mask

Abstract

The utility model discloses a pilot protection helmet mask hanging belt automatic stretcher which comprises a mask hanging belt unwinding assembly, a mask hanging belt body can be wound on the mask hanging belt unwinding assembly, and the mask hanging belt body is wound by a mask hanging belt winding assembly after passing through a first mask hanging belt clamping assembly, a tensioning assembly and a second mask hanging belt clamping assembly. The first mask hanging belt clamping assembly and the second mask hanging belt clamping assembly comprise two clamping seats, the two clamping seats can be close to each other or away from each other, and the mask hanging belt body penetrates through the space between the two clamping seats. The tensioning assembly comprises a tensioning disc, the mask hanging belt body winds around the tensioning disc, and the tensioning disc can be driven by a second hydraulic cylinder to move in the direction away from or close to the mask hanging belt unwinding assembly. According to the equipment, a hanging belt of a protective helmet mask of a pilot can be stretched, so that the hanging belt can be more tightly attached to the head of the pilot, shaking in the flying process can be reduced, and the wearing stability can be improved.

Description

Technical Field

[0001] This utility model belongs to the field of automatic stretching machine technology, and in particular to an automatic stretching machine for the straps of a pilot's protective helmet visor. Background Technology

[0002] When flying in highly enclosed or non-airtight cockpits, the pilot's protective helmet and oxygen mask should meet the requirements for oxygen supply and G-force compatibility. When the pilot ejects, the protective helmet should remain on the pilot's head and in conjunction with the oxygen mask to prevent the oxygen mask from detaching during high-speed airflow and to ensure the pilot's oxygen supply during descent. Utility Model Content

[0003] Utility Model Purpose

[0004] To address the safety hazards posed by the elasticity of the helmet and oxygen mask straps during pilot use, this invention provides an automatic stretching machine for the helmet and oxygen mask straps.

[0005] Utility Model Technical Solution

[0006] An automatic tensioning machine for a pilot's protective helmet visor strap includes a visor strap unwinding assembly. The visor strap body can be wound around the visor strap unwinding assembly. The visor strap body passes through a visor strap clamping assembly one, a tensioning assembly, and a visor strap clamping assembly two, and is then wound by a visor strap winding assembly. The visor strap clamping assembly one and the visor strap clamping assembly two include two clamping seats that can move closer to or further away from each other. The visor strap body passes between the two clamping seats. The tensioning assembly includes a tensioning disc. The visor strap body passes around the tensioning disc. The tensioning disc can be driven by a hydraulic cylinder two to move away from or closer to the visor strap unwinding assembly.

[0007] Preferably, the clamping seat is connected to one end of the connecting rod, the other end of the connecting rod is connected to one end of the connecting plate, the other end of the connecting plate is connected to the upper end of the hydraulic rod, one of the hydraulic rods is connected to the output end of the hydraulic cylinder, and the other hydraulic rod is fixed to the hydraulic cylinder.

[0008] Preferably, the tensioning disc is rotatably connected to the mounting bracket, the mounting bracket is installed at one end of the hydraulic rod two, and the other end of the hydraulic rod two is connected to the output end of the hydraulic cylinder two.

[0009] Preferably, the mask strap winding assembly includes a drive motor, a drive shaft is mounted on the output end of the drive motor, a second pulley is mounted on the drive shaft, a first rotating shaft is connected to a first pulley, the first pulley and the second pulley are connected by a transmission belt, and the other end of the first rotating shaft is connected to a winding roller.

[0010] Preferably, both the take-up roller and the mask strap unwinding assembly include an unwinding reel 1 and an unwinding reel 2. One end of the rotating shaft 2 is mounted on the housing, and the unwinding reel 2 is mounted on the other end of the rotating shaft 2. A threaded sleeve is installed on the unwinding reel 2. The unwinding reel 1 is mounted on a fastening screw, and the fastening screw and the threaded sleeve are connected by threads.

[0011] Preferably, it also includes a counting assembly, which includes a counting roller rotatably mounted on the housing, a sensor mounted on the counting roller, and a meter counter mounted near the counting roller. The mask strap body passes through the mask strap clamping assembly two, passes around the counting roller, and is then wound up by the mask strap winding assembly. When the mask strap winding assembly winds up the mask strap body, it drives the counting roller to rotate. The rotation of the counting roller causes the sensor to rotate around the counting roller, thereby measuring the length of the wound mask strap body through the meter counter.

[0012] Preferably, a guide wheel is provided between the mask strap unwinding assembly and the mask strap clamping assembly. The guide wheel is mounted on the housing, and the mask strap body passes through the guide wheel and the mask strap clamping assembly in sequence.

[0013] Preferably, a guide wheel is provided between the mask strap clamping assembly 2 and the mask strap winding assembly, and the mask strap body passes sequentially through the mask strap clamping assembly 2, the guide wheel 2, and the winding assembly, or the mask strap clamping assembly 2, the guide wheel 2, and the mask strap winding assembly.

[0014] Preferably, the second hydraulic cylinder is housed inside the housing, which is mounted on the outer shell.

[0015] Preferably, it also includes a control panel, which is used to set the tension pressure, working time, and control the start and stop of hydraulic cylinder one in mask strap clamping assembly one and mask strap clamping assembly two. Hydraulic cylinder two outputs corresponding power according to the set tension pressure.

[0016] The advantages of this invention are: Firstly, the device can stretch the helmet visor straps of the pilot, allowing for a closer fit to the pilot's head. This reduces swaying during flight and improves wearing stability. Secondly, a proper wearing position better protects the pilot's head, preventing accidental injury during flight. Furthermore, the stretched, non-elastic visor straps ensure a tight fit, preventing the helmet from falling off during flight and enhancing pilot safety. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention.

[0018] Figure 2 This is a perspective view of the mask strap clamping assembly of this utility model.

[0019] Figure 3 This is a perspective view of the mask strap winding assembly of this utility model.

[0020] Figure 4 This is a perspective view of the mask hanging strap unwinding assembly of this utility model.

[0021] Figure 5 This is a perspective view of the marking component of this utility model.

[0022] Figure 6 This is a perspective view of the tensioning component of this utility model.

[0023] In the diagram: 1. Housing; 2. Guide wheel 1; 3. Face mask strap clamping assembly 1; 31. Clamping seat; 32. Connecting rod; 33. Connecting plate; 34. Hydraulic rod 1; 35. Hydraulic cylinder 1; 4. Face mask strap clamping assembly 2; 5. Face mask strap unwinding assembly; 51. Fastening screw; 52. Unwinding reel 1; 54. Rotating shaft 2; 55. Threaded sleeve; 6. Face mask strap body; 7. Tensioning assembly; 71. Hydraulic cylinder 2; 72. Hydraulic... 73. Pressure bar 2; 74. Tensioning disc; 8. Mounting bracket; 9. Mask strap winding assembly; 10. Winding roller; 11. Rotating shaft 1; 12. Pulley 1; 13. Drive belt; 14. Pulley 2; 15. Drive shaft; 16. Drive motor; 17. Reel counting assembly; 18. Reel counting roller; 19. Sensor; 10. Meter counter; 11. Wire; 12. Housing; 13. Guide wheel 2; 14. Support rod; 15. Control panel. Detailed Implementation

[0024] This utility model is achieved through the following technical solution.

[0025] An automatic tensioning machine for a pilot's protective helmet visor strap includes a housing 1. A support rod 12 is installed at the lower end of one side of the housing 1, and a control panel 13 is installed at the upper end of the support rod 12. A housing 10 is installed on the other side of the housing 1. A tensioning component 7 is installed on the side of the housing 10 away from the control panel 13. A visor strap unwinding component 5 is installed at the upper corner of the inner side of the housing 1. A visor strap clamping component 3 is installed on the other inner side of the housing 1. A guide wheel 2 is provided on the inner side of the housing 1 near the visor strap clamping component 3. A visor strap clamping component 4 is provided on the inner side of the housing 1 below the visor strap clamping component 3. A guide wheel 11 is provided on the inner side of the housing 1 near the visor strap clamping component 4. A visor strap winding component 8 is provided at the lower corner of the inner side of the housing 1. A counting component 9 is provided on the inner side of the housing 1 above the visor strap winding component 8. A visor strap body 6 is wound around the surface of the tensioning component 7.

[0026] Specifically, the mask strap clamping assembly 1 3 and the mask strap clamping assembly 2 4 include a clamping seat 31, a connecting rod 32, a connecting plate 33, a hydraulic rod 1 34 and a hydraulic cylinder 1 35. The hydraulic cylinder 1 35 is installed on the other side of the housing 1. The output end of the hydraulic cylinder 1 35 is equipped with the hydraulic rod 1 34. The upper end of the hydraulic rod 1 34 is equipped with the connecting plate 33. The other end of the connecting plate 33 is equipped with the connecting rod 32. The lower end of the connecting rod 32 is equipped with the clamping seat 31.

[0027] By adopting the above technical solution, by opening the hydraulic cylinder 35, the hydraulic cylinder 35 drives the hydraulic rod 34 to move through the output end, the hydraulic rod 34 drives the connecting plate 33 to move, the connecting plate 33 moves and drives the connecting rod 32 to move, and the connecting rod 32 moves and drives the two clamping seats 31 to fix the mask hanging body 6.

[0028] Specifically, the mask strap winding assembly 8 includes a winding roller 81, a rotating shaft 82, a pulley 83, a transmission belt 84, a pulley 85, a drive shaft 86, and a drive motor 87. The drive motor 87 is mounted on the other side of the housing 1. The output end of the drive motor 87 is equipped with the drive shaft 86. The other end of the drive shaft 86 is equipped with the pulley 85. The surface of the pulley 85 is wound with the transmission belt 84. The other end of the transmission belt 84 is equipped with the pulley 83. The rotating shaft 82 is mounted on the side of the pulley 83. The other end of the rotating shaft 82 is equipped with the winding roller 81. A threaded sleeve is mounted on the winding roller 81. The winding roller is mounted on a fastening screw, and the fastening screw is threadedly connected to the threaded sleeve.

[0029] By adopting the above technical solution, the drive motor 87 is turned on, and the drive motor 87 drives the drive shaft 86 to rotate through the output end. The rotation of the drive shaft 86 drives the second pulley 85 to rotate, the rotation of the second pulley 85 drives the transmission belt 84 to rotate, the rotation of the transmission belt 84 drives the first pulley 83 to rotate, the rotation of the first pulley 83 drives the first rotating shaft 82 to rotate, and the rotation of the first rotating shaft 82 drives the take-up roller 81 to rotate, thereby driving the stretched mask hanging strap body 6 to perform the take-up operation.

[0030] Specifically, the mask strap unwinding assembly 5 includes a fastening screw 51, an unwinding reel 1 52, an unwinding reel 2 53, a rotating shaft 2 54, and a threaded sleeve 55. The rotating shaft 2 54 is installed at the upper corner of the inner side of the housing 1. The unwinding reel 2 53 is installed at the other end of the rotating shaft 2 54. The threaded sleeve 55 is installed on the side of the unwinding reel 2 53. The unwinding reel 1 52 is installed on the side of the threaded sleeve 55. The fastening screw 51 is installed inside the unwinding reel 1 52. The fastening screw 51 and the threaded sleeve 55 are connected by threaded engagement.

[0031] By adopting the above technical solution, the mask strap body 6 that needs to be stretched is placed between the unwinding reel 1 52 and the unwinding reel 2 53, and then the mask strap body 6 is installed by correspondingly installing the fastening screw 51 and the threaded sleeve 55, so that the unwinding operation of the mask strap body 6 can be carried out.

[0032] Specifically, the loop counting assembly 9 includes a loop counting roller 91, a sensor 92, a meter counter 93, and a wire 94. The loop counting roller 91 is located on the inner side of the housing 1 above the mask strap winding assembly 8. The sensor 92 is installed on the side of the loop counting roller 91. The meter counter 93 is installed on the inner side of the housing 1 near the loop counting roller 91. The wire 94 is installed on the side of the meter counter 93.

[0033] By adopting the above technical solution, when the mask strap winding assembly 8 winds up the mask strap body 6, it will drive the counting roller 91 to rotate. The rotation of the counting roller 91 will drive the sensor 92 to rotate around the counting roller 91, thereby measuring the length of the wound mask strap body 6 through the meter counter 93, thus preventing the unstretched mask strap body 6 from being wound up.

[0034] Specifically, the tensioning assembly 7 includes a second hydraulic cylinder 71, a second hydraulic rod 72, a tensioning disc 73, and a mounting bracket 74. The second hydraulic cylinder 71 is installed inside the housing 10. The second hydraulic rod 72 is installed at the output end of the second hydraulic cylinder 71. The mounting bracket 74 is installed at the other end of the second hydraulic rod 72. The tensioning disc 73 is rotatably connected to the other end of the mounting bracket 74 via a rotating shaft.

[0035] By adopting the above technical solution, by opening the second hydraulic cylinder 71, the second hydraulic cylinder 71 drives the second hydraulic rod 72 to extend and retract through the output end. The second hydraulic rod 72 drives the mounting frame 74 to move, and the movement of the mounting frame 74 drives the mask hanging body 6 to perform stretching work.

[0036] The working principle and usage process of this utility model are as follows: When using this utility model, the mask strap body 6 is wrapped around the surface of the mask strap unwinding assembly 5, and then passed sequentially through the guide wheel 1 2, the mask strap clamping assembly 1 3, the tensioning assembly 7, the mask strap clamping assembly 2 4, the guide wheel 2 11, and the loop counting assembly 9. Finally, the mask strap body 6 is wound up by the mask strap winding assembly 8. When stretching the mask strap body 6, the mask strap body 6 is clamped by the mask strap clamping assembly 1 3 and the mask strap clamping assembly 2 4, and then stretched by the tensioning assembly 7. After stretching, the mask strap body 6 is wound up by opening the mask strap winding assembly 8. The loop counting assembly 9 measures the length of the mask strap body 6 wound up by the mask strap winding assembly 8 to prevent the unstretched mask strap body 6 from being wound up by the mask strap winding assembly 8.

[0037] The control panel 13 is used to set the tension pressure, working time, and control the start and stop of the hydraulic cylinder 35 in the mask strap clamping assembly 1 3 and the mask strap clamping assembly 2 4. The hydraulic cylinder 2 71 outputs corresponding power according to the set tension pressure.

[0038] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All equivalent transformations or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model. The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

Claims

1. An automatic stretching machine for the helmet visor straps of a pilot, characterized in that, The device includes a mask strap unwinding assembly (5), a mask strap body (6) that can be wound around the mask strap unwinding assembly (5), and a mask strap body (6) that is wound by a mask strap winding assembly (8) after passing through a mask strap clamping assembly one (3), a tensioning assembly (7), and a mask strap clamping assembly two (4). The mask strap clamping assembly one (3) and the mask strap clamping assembly two (4) include two clamping seats (31), which can move closer to or further away from each other, and the mask strap body (6) passes between the two clamping seats (31). The tensioning assembly (7) includes a tensioning disc (73), and the mask strap body (6) passes around the tensioning disc (73). The tensioning disc (73) can be driven by a hydraulic cylinder two (71) to move away from or closer to the mask strap unwinding assembly (5).

2. The automatic stretching machine for the helmet visor strap of a pilot as described in claim 1, characterized in that, The clamping seat (31) is connected to one end of the connecting rod (32), the other end of the connecting rod (32) is connected to one end of the connecting plate (33), the other end of the connecting plate (33) is connected to the upper end of the hydraulic rod (34), one of the hydraulic rods (34) is connected to the output end of the hydraulic cylinder (35), and the other hydraulic rod (34) is fixed on the hydraulic cylinder (35).

3. The automatic stretching machine for the helmet visor strap of a pilot as described in claim 2, characterized in that, The tensioning disc (73) is rotatably connected to the mounting bracket (74), which is mounted on one end of the hydraulic rod (72), and the other end of the hydraulic rod (72) is connected to the output end of the hydraulic cylinder (71).

4. The automatic stretching machine for the helmet visor strap of a pilot as described in claim 1, characterized in that, The mask strap winding assembly (8) includes a drive motor (87), a drive shaft (86) is installed at the output end of the drive motor (87), a second pulley (85) is installed on the drive shaft (86), a first rotating shaft (82) is connected to a first pulley (83) at one end, the first pulley (83) and the second pulley (85) are connected by a transmission belt (84), and the other end of the first rotating shaft (82) is connected to a winding roller (81).

5. The automatic stretching machine for the helmet visor strap of a pilot as described in claim 1, characterized in that, The mask strap unwinding assembly (5) includes an unwinding reel one (52) and an unwinding reel two (53). One end of the rotating shaft two (54) is mounted on the housing (1), and the unwinding reel two (53) is mounted on the other end of the rotating shaft two (54). A threaded sleeve (55) is mounted on the unwinding reel two (53). The unwinding reel one (52) is mounted on the fastening screw (51), and the fastening screw (51) and the threaded sleeve (55) are connected by threads.

6. The automatic stretching machine for the helmet visor strap of a pilot as described in claim 1, characterized in that, It also includes a counting assembly (9), which includes a counting roller (91) rotatably mounted on the housing (1), a sensor (92) mounted on the counting roller (91), and a meter counter (93) mounted near the counting roller (91). The mask strap body (6) passes through the mask strap clamping assembly two (4) and then passes around the counting roller (91) before being wound up by the mask strap winding assembly (8). When the mask strap winding assembly (8) winds up the mask strap body (6), it drives the counting roller (91) to rotate. The rotation of the counting roller (91) drives the sensor (92) to rotate around the counting roller (91), thereby measuring the length of the wound mask strap body (6) through the meter counter (93).

7. The automatic stretching machine for the helmet visor strap of a pilot as described in claim 1, characterized in that, A guide wheel (2) is provided between the mask strap unwinding assembly (5) and the mask strap clamping assembly (3). The guide wheel (2) is installed on the housing (1). The mask strap body (6) passes through the guide wheel (2) and the mask strap clamping assembly (3) in sequence.

8. The automatic stretching machine for the helmet visor strap of a pilot as described in claim 6, characterized in that, A guide wheel (11) is provided between the mask strap clamping assembly 2 (4) and the mask strap winding assembly (8). The mask strap body (6) passes through the mask strap clamping assembly 2 (4), the guide wheel (11), and the loop counting assembly (9) in sequence, or the mask strap clamping assembly 2 (4), the guide wheel (11), and the mask strap winding assembly (8).

9. The automatic stretching machine for the helmet visor strap of a pilot as described in claim 3, characterized in that, Hydraulic cylinder 2 (71) is installed inside the housing (10), and the housing (10) is mounted on the shell (1).

10. An automatic stretching machine for the helmet visor strap of a pilot as described in claim 3, characterized in that, It also includes a control panel (13), which is used to set the tension pressure, working time, and control the start and stop of the hydraulic cylinder (35) in the mask strap clamping assembly one (3) and the mask strap clamping assembly two (4). The hydraulic cylinder two (71) outputs corresponding power according to the set tension pressure.

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