5results about How to "Increase girth" patented technology

The application discloses a quick-mounting wire drawing wheel device, which comprises a main wheel lobe for being connected with an output shaft of a polishing head, a sub-wheel lobe hinged to one end of the main wheel lobe through a pin shaft and capable of forming an installation surface outside the main wheel lobe and the sub-wheel lobe as a whole for directly or indirectly clamping a sand belt, an opening and closing opening provided between the sub-wheel lobe and the other end of the main wheel lobe and capable of being opened by rotating around the pin shaft to tighten the sand belt and being closed to loosen the sand belt, and a control assembly provided on the main wheel lobe or the sub-wheel lobe and capable of driving the opening and closing opening to be opened and closed. The sub-wheel lobe is hinged to the main wheel lobe, the circumference of the installation surface can be changed, the sand belt is conveniently installed when the circumference is the shortest, then the opening and closing opening is driven to be opened by the control assembly, the circumference of the installation surface is increased, the sand belt is tightened, and the sand belt can be conveniently and quickly disassembled and installed, so that the work efficiency is greatly improved.

The utility model relates to a tent technical field, especially a folding structure of a tail tent. The folding structure of the tail tent, it includes tent main part and connecting door tent, wherein, tent main part, it is provided with connecting portion, connecting door tent is connected with tent main part, makes connecting portion completely be located in connecting door tent, still includes folding part, folding part is connected with connecting door tent, and has folding state and unfolding state, when folding part is in folding state, folding part exists with the coincident part of connecting door tent, and folding part is configured to be in the unfolding state, increase the opening size of connecting door tent. The utility model can improve the circumference of the opening of the outer end of connecting door tent, and further improve the versatility of connecting door tent.

The invention relates to a method and a device for determining the dynamic tire circumference of a vehicle. The method comprises the following steps: receiving a first signal (S1) representing the yaw rate of the vehicle, a second signal (S2) representing the wheel speed of the wheel of the vehicle, a third signal (S3) representing the steering angle of the vehicle, and a fourth signal (S4) representing the dynamic wheel width of the vehicle; determining a first output signal (A1) of the first Kalman filter (K1) representing the dynamic tire circumference of the wheel by using the first signal (S1), the second signal (S2), the third signal (S3) and the fourth signal (S4) as input signals for the first Kalman filter (K1); and using the first output signal (A1) in a control device of the vehicle.

The application discloses a manufacturing method of metal electroplated abrasive belt with arbitrary cross section shape, comprising the following steps: firstly, inserting sheet-shaped elastic metal sheets into steel wire rope to construct the skeleton of the electroplated abrasive belt; and secondly, filling rubber between the skeleton to manufacture the electroplated base body of the belt-shaped polishing tool. The method combines mold pressing and grinding to obtain the high-precision and special-shaped abrasive belt base body, then the superhard abrasive is attached on the exposed surface of the ground abrasive belt collective through electroplating, thereby preparing the electroplated abrasive belt polishing tool with arbitrary cross section shape. The abrasive belt can be cut into a certain length and connected into a ring structure by the method, and the polishing tool can be driven by the similar driving device of the common plane abrasive belt to realize polishing processing. The polishing tool is characterized in that the electroplating can be repeated through the mode of stripping, grinding and re-electroplating, and the working life of the polishing tool can be significantly prolonged, and the polishing technical problems of the difficult polishing areas such as the root of turbine blade and the concave curved surface of blade basin can be solved.

The trousers with the foldable trouser legs comprise a trouser waist and the trouser legs sewn on the two sides of the trouser waist, extension parts are arranged at the bottoms of the trouser legs, lock catch assemblies are arranged on the outer side of the trouser waist and comprise bases, locking pieces and elastic pieces, the bases are sewn on the outer sides of the trouser legs, the bases are connected with the locking pieces used for locking in a rotating mode, and the elastic pieces are connected with the locking pieces. An elastic piece is arranged between the locking piece and the base, the extension part is provided with a clamping groove, and a locking cavity used for being connected with the clamping groove is formed between the base and the locking piece. The main purpose of the utility model is that the extension part of the trouser leg is used for increasing the perimeter of the trouser leg at the ankle, the trouser leg is easy to fold upwards, and when the trouser leg needs to be folded, the locking piece is rotated to open the lock catch assembly, the clamping groove of the extension part is clamped into the locking cavity, and then the locking piece is reset, so that the heat dissipation of legs or wading walking of people is facilitated; and the trouser legs cannot fall off in the walking process.