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CN-224219576-U - Enclose degree adjusting device and helmet

CN224219576UCN 224219576 UCN224219576 UCN 224219576UCN-224219576-U

Abstract

The utility model relates to the technical field of helmet equipment, and discloses a circumference adjusting device and a helmet. The circumference adjusting device is used for adjusting the circumference of the helmet and comprises an annular air bag, an inflating piece, an air pipe and an exhaust piece, wherein a connecting port is formed in the annular air bag, one end of the air pipe is communicated with the connecting port, the other end of the air pipe is connected with the inflating piece, the inflating piece is configured to supply air to the air pipe, and the exhaust piece is arranged on the air pipe and is used for exhausting air in the air pipe. This circumference adjusting device can realize the regulation of helmet circumference through the hole aperture of control annular gasbag, adjusts convenient and fast, has reduced the manufacturing cost of helmet and the complexity of circumference regulation thereof.

Inventors

  • ZHU XUEGANG
  • ZHU YONG
  • WU PING

Assignees

  • 上海和汇安全用品有限公司

Dates

Publication Date
20260512
Application Date
20250507

Claims (7)

  1. 1. The circumference adjusting device is used for adjusting the circumference of a helmet (100) and is characterized by comprising an annular air bag (1), an inflating piece (2), an air pipe (3) and an exhaust piece (4), wherein a connecting port is arranged on the annular air bag (1), one end of the air pipe (3) is communicated with the connecting port, the other end of the air pipe is connected with the inflating piece (2), the inflating piece (2) is configured to supply air to the air pipe (3), and the exhaust piece (4) is arranged on the air pipe (3) and is used for exhausting air in the air pipe (3); The exhaust piece (4) comprises an exhaust main body (41), a blocking piece, an operation piece (43) and a connecting piece, wherein a gas channel (42) and an exhaust port communicated with the gas channel (42) are arranged on the exhaust main body (41), one end of the gas channel (42) is communicated with the gas pipe (3), the other end of the gas channel is communicated with a gas outlet of the inflating piece (2), the blocking piece is movably arranged at the exhaust port and is provided with a blocking state for blocking the exhaust port and an exhaust state for unblocking the exhaust port, the operation piece (43) is movably arranged in the exhaust main body (41), one end of the connecting piece is connected with the blocking piece, the other end of the connecting piece is connected with the operation piece (43), and the operation piece (43) is driven to move, and the blocking piece is driven to switch between the blocking state and the exhaust state through the connecting piece.
  2. 2. The circumference adjustment device according to claim 1, characterized in that the inner hole diameter at the first end of the annular air bag (1) is smaller than the inner hole diameter at the second end of the annular air bag (1), and the inner hole diameter of the annular air bag (1) gradually transitions from the first end to the second end, the first end and the second end being the two ends of the annular air bag (1) in the extending direction thereof, respectively.
  3. 3. The circumference adjusting device according to claim 1, wherein a connecting cylinder (11) is arranged at the connecting port, and the air pipe (3) is detachably sleeved on the connecting cylinder (11).
  4. 4. A circumference adjusting device according to claim 3, characterized in that the outer wall of the connecting cylinder (11) is provided with external threads, and the inner pipe wall of the air pipe (3) is provided with internal threads which are in threaded fit with the external threads; Or the connecting cylinder (11) is provided with a clamping groove (111), the inner cavity of the air pipe (3) is provided with a clamping block, and the clamping block is clamped in the clamping groove (111).
  5. 5. The circumference adjusting device according to any one of claims 1 to 4, wherein the inflatable member (2) employs an air pump.
  6. 6. Helmet (100) characterized by comprising a shell (101) and a circumference adjustment device according to any of claims 1-5, wherein a wearing space (102) is provided on the shell (101), the circumference adjustment device is detachably provided in the wearing space (102), and the annular airbag (1) is connected with the shell (101).
  7. 7. The helmet (100) according to claim 6, wherein the helmet (100) further comprises a fastener passing through the inflatable member (2) and fastened to the shell (101), wherein a mounting groove is provided on an inner wall of the shell (101), and wherein the annular airbag (1) is caught in the mounting groove.

Description

Enclose degree adjusting device and helmet Technical Field The utility model belongs to the technical field of helmet equipment, and particularly relates to a circumference adjusting device and a helmet. Background Helmets are used as a head protective harness, often to avoid crashing, squeezing or other forms of injury to the head during accidents or accidents. Helmets are often equipped with a circumference adjustment function in order to adapt to the head shape of different wearers and to ensure the comfort and safety of the helmet wearing. Currently, the adjustment of the circumference of helmets mainly depends on two devices, a rotary adjusting knob and an air conditioning system. The air conditioning system adjusts the air quantity in the air bag in the mode of inflating and deflating the air bag, so that the circumference of the helmet is adjusted. However, the existing air conditioning system generally comprises a plurality of air bags which are communicated with each other, but only one air bag is provided with an air inlet and an air outlet, and air needs to be transmitted among the plurality of air bags through an air pipe, so that the adjusting speed of the circumference of the helmet is slower, and the air inlet and the air outlet of the air bags are positioned at different positions, so that a user needs to operate respectively during adjustment, and the adjusting complexity is increased. In addition, the air conditioning system in part of the helmet also has a safety protection function, and the air bags are distributed inside the helmet, so that the complexity of the air conditioning system is increased, and the production cost of the helmet is obviously increased. Therefore, there is a need for a circumference adjusting device and a helmet to solve the above problems. Disclosure of utility model Aiming at the defects in the prior art, the utility model aims to provide the circumference adjusting device and the helmet, wherein the circumference of the helmet can be adjusted by controlling the aperture of the inner hole of the annular air bag, the adjustment is convenient and quick, and the production cost of the helmet and the complexity of circumference adjustment are reduced. To achieve the purpose, the utility model adopts the following technical scheme: in one aspect, there is provided a circumference adjusting apparatus for adjusting the circumference of a helmet, comprising The device comprises an annular air bag, an inflatable part, an air pipe and an exhaust part, wherein a connecting port is formed in the annular air bag, one end of the air pipe is communicated with the connecting port, the other end of the air pipe is connected with the inflatable part, the inflatable part is configured to supply air to the air pipe, and the exhaust part is arranged on the air pipe and is used for exhausting air in the air pipe. Optionally, the inner hole diameter at the first end of the annular air bag is smaller than the inner hole diameter at the second end of the annular air bag, the inner hole diameter of the annular air bag is gradually transited from the first end to the second end, and the first end and the second end are respectively two ends of the annular air bag along the extending direction of the annular air bag. Optionally, the connecting opening is provided with a connecting cylinder, and the air pipe is detachably sleeved on the connecting cylinder. Optionally, an external thread is arranged on the outer wall of the connecting cylinder, and an internal thread matched with the external thread is arranged on the inner pipe wall of the air pipe; Or the connecting cylinder is provided with a clamping groove, the inner cavity of the air pipe is provided with a clamping block, and the clamping block is clamped in the clamping groove. The air exhausting device comprises an air exhausting main body, a blocking piece, an operating piece and a connecting piece, wherein the air exhausting main body is provided with an air channel and an air outlet communicated with the air channel, one end of the air channel is communicated with an air pipe, the other end of the air channel is communicated with an air outlet of the air inflating piece, the blocking piece is movably arranged at the air outlet and is provided with a blocking state for blocking the air outlet and an air exhausting state for unblocking the air outlet, the operating piece is movably arranged on the air exhausting main body, one end of the connecting piece is connected with the blocking piece, the other end of the connecting piece is connected with the operating piece, and the operating piece drives the blocking piece to switch between the blocking state and the air exhausting state through the connecting piece. Optionally, the air pump is used as the air charging member. On the other hand, provide a helmet, including casing and foretell circumference adjusting device, be provided with on the casing and wear the space, circumferenc