5results about How to "Guaranteed tightening effect" patented technology

The utility model relates to the technical field of fire extinguisher production equipment, in particular to fire extinguisher valve assembly equipment which comprises a bearing frame, a conveying mechanism and a screwing mechanism. According to the fire extinguisher bottle body conveying device, the conveying mechanism is fixed to the bottom of the connecting shell, the first motor is started to enable the conveying belt to rotate, and therefore the fire extinguisher bottle body can be conveyed conveniently, the conveyed fire extinguisher bottle body can be limited conveniently through the two limiting assemblies, and the conveyed fire extinguisher bottle body is stable; then a clamping plate and a rubber pad are moved by starting a second motor, so that the fire extinguisher bottle body is conveniently clamped and fixed, the fire extinguisher bottle bodies of different sizes can be clamped and fixed, the inner side wall of a first connecting notch is in extrusion contact with the end of a valve by starting a second air cylinder and a fourth motor, and then the inner side wall of a second connecting notch is in extrusion contact with the end of the valve by starting a third motor; and the two connecting plates are rotated, and the two rotating connecting plates are used for conveniently screwing the valve.

The application discloses a waistband structure, and belongs to the technical field of waistbands, which comprises a main band body and a sub-band body, the two ends of the main band body and the sub-band body are respectively and respectively detachably connected, the sub-band body is arranged near the middle position of the main band body and is used for gathering the main band body, and at least one adjusting part is formed by folding the main band body relative to the sub-band body, and a connecting piece for fixing the adjusting part is arranged on the outer wall of the main band body. The adjusting part is folded to make the main band body capable of being flexibly adjusted according to the body shape of a user, effectively avoiding that the top of the main band body presses or clamps the lower edge of the chest of the user, or that the bottom of the main band body rubs against the hip bone or the hip of the user to cause discomfort, and improving the size adaptability and ergonomics compatibility. The adjusting part can be fixedly installed on the outer wall of the main band body through the connecting piece, thereby preventing the adjusting part from being randomly rolled up and raised to cause discomfort to the user, and improving the wearing comfort of the user.

The application provides a nut and bolt automatic tightening device, which comprises corresponding bolt clamping structure and nut clamping structure; the bolt clamping structure and the nut clamping structure are in sliding fit; the nut clamping structure comprises a clamping jaw locking mechanism, a nut sleeve mechanism and a base; the nut sleeve mechanism comprises a sleeve base, a rotating cylinder and a motor; the motor is in transmission connection with the rotating cylinder arranged on the sleeve base; the sleeve base and the base are respectively arranged on the sliding rails fixed on the clamping jaw locking mechanism, a first electric cylinder is arranged between the sleeve base and the clamping jaw locking mechanism, and a second electric cylinder is arranged between the base and the clamping jaw locking mechanism; the clamping jaw locking mechanism comprises a limiting jaw facing the opening part of the rotating cylinder; the limiting jaw is provided with a through hole for the bolt after being closed; the bolt and the nut are in the opposite relationship and are stably connected.

The utility model relates to the technical field of fastening tools, in particular to a rapid fastening tool for a photovoltaic flexible support assembly mounting bolt, which is used for fastening an assembly mounting bolt and a nut thereof at a high position and comprises a torque transmission rod, a fastening device and a fastening device. The nut sleeve is arranged at one end of the torque transmission rod, and a screwing groove matched with a nut in shape is formed in the nut sleeve; a support bar; the bolt sleeve is arranged at one end of the supporting rod, and a positioning groove matched with a bolt head of an assembly mounting bolt in shape is formed in the bolt sleeve. Through the arrangement of the torque transmission rod and the nut sleeve, a worker can hold the torque transmission rod by hand to enable the nut sleeve to be in butt joint with a nut at a high position, driving force is applied to the torque transmission rod, then torque is generated, the nut sleeve is driven to screw the nut, and meanwhile the supporting rod and the bolt sleeve are arranged. When the bolt sleeve is arranged on the surface of the bolt head in a sleeving mode, axial rotation of the assembly installation bolt can be limited, and the tightening effect is guaranteed.

This utility model provides an easy-tightening outer jacket, including an outer jacket body with a hood at the top. A tightening channel is provided along the edge of the hood, and two openings are respectively formed at both ends of the hood near the tightening channel. A tightening strap is placed in the tightening channel, passing through the openings. A positioning component is positioned at the point where the tightening strap exits the openings. Through the above structure, with the tightening strap and positioning component, and the cooperation of the upper and lower buckles and spring of the positioning component, after the tightening strap passes through the lower and upper buckle holes of the upper and lower buckles, the spring force pushes the upper buckle away from the lower buckle, causing the lower and upper buckle holes to be misaligned. This creates a continuous bending structure for the tightening strap, thereby clamping the positioning component in the corresponding position of the tightening strap. This increases the clamping force of the positioning component, prevents it from loosening and easily sliding on the tightening strap, and ensures the tightening effect.