New standard handcuffs

Appearance: The surface of the metal handcuffs is oxidized, smooth without burrs, uniform color, no peeling, blistering and other defects;

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Appearance: The surface of the metal handcuffs is oxidized, smooth without burrs, uniform color, no peeling, blistering and other defects; the left and right handcuffs and fan beams of the metal handcuffs have the same shape without obvious distortion. The edges and corners of the metal handcuff body and the fan beam are round and tidy, and the three rows of teeth have complete and no defects. There are no more than 4 hard prints on each handcuff body of metal handcuffs, and the area of each handcuff is less than or equal to 3mm², and they are not concentrated on the same surface. The amount of shaking at the riveted joint between the metal handcuff body and the fan beam shall not exceed 0.05mm.

Structure: The metal handcuffs are composed of left and right handcuff bodies, three rows of fan beams, chain bases, chain links, keys, etc.

Dimensions: the distance between the handcuffs L: (52～56) mm, the minimum aperture of the handcuffs in the three-foot engaged state H: (55±2) mm, the maximum aperture of the handcuffs in the three-foot engaged state B: (82±2) mm.

Color: The surface of the metal handcuffs is shining golden, the left and right handcuffs are the same color, and there is no obvious color difference; the fan beam is matt silver.

Logo: One of the metal handcuffs has a clear and permanent marking engraved on the surface of the handcuff body, the font is in bold and the height is 3.5mm.

Quality: The quality of metal handcuffs (excluding keys and packaging) is not more than 229g.

Flexibility: The key of the metal handcuffs can be inserted into the lock hole from the front and back sides to unlock and open the handcuffs. The key of the metal handcuffs can be inserted into the lock hole of the anti-locking position to realize the anti-locking of the handcuffs, and the anti-locking position paddles operate flexibly and smoothly. The fan beam of the metal handcuffs rotates flexibly and without obstruction.

Anti-lock position: When the metal handcuffs are in the locked and anti-lock position, 3500N static pressure is applied, and there is no loose engagement or failure.

Anti-pull performance: The three locking teeth of the metal handcuffs are independent of each other. When any one of the locking teeth is moved, the other two locking teeth are not linked. When the metal handcuffs are in the locked state, the working time of anti-dragging should be greater than or equal to 2min.

Engagement strength: The metal handcuffs engage firmly and reliably, and cannot be pulled apart in the opposite direction.

Longitudinal static tension: When the metal handcuffs are locked, apply a longitudinal static tension of 3500N and keep them for 30s. The metal handcuffs should not be pulled apart, and there should be no permanent deformation or cracks on the handcuffs after the test.

Horizontal static tension: When the metal handcuffs are in the locked state, apply 3500N horizontal static tension and keep for 30s. The metal handcuffs should not be opened. During the test, the metal handcuffs should not be opened. After the test, there should be no permanent deformation or permanent deformation on the body of the handcuffs. Cracks meet the requirements of flexibility.

Strength of the fixed connector: Apply 4500N static tension to the fan beam rivets of the metal handcuffs for 30s. After the test, the fixed connector will not loosen, which meets the requirements of flexibility.

Key strength: Apply a torque of 4Nm to the key of the metal handcuffs and keep it for 30s. After the test, the key does not appear to be deformed or broken, and it meets the requirements of flexibility.

Handcuff body strength: When the metal handcuffs are locked, a torque of 25Nm is applied to the handcuff body for 30s. After the test, the handcuff body does not separate from the fan beam and meets the requirements of flexibility.

Durability: The metal handcuffs are normally opened with a key, and the lock is a cycle, after 15,000 cycles (after every 1,000 cycles, the position is unlocked once).

Falling reliability: Put the metal handcuffs horizontally, with the chain ring facing upwards, and the two handcuffs vertically downward, and the chain ring vertically downwards. The two handcuffs are facing upwards in 3 states. After falling freely to the concrete floor from a height of 2m , In line with the requirements of flexibility.

Corrosion resistance: not less than level 6.

Keyword:

standard

handcuffs

metal