4results about How to "Achieve tightness" patented technology

The embodiment of the utility model provides a fabric fixing device, and belongs to the field of textile processing. The fabric fixing device comprises a supporting frame and two first clamping mechanisms. The two first clamping mechanisms are arranged in a spaced mode in the first direction, and the two opposite ends of each first clamping mechanism are rotationally connected to the supporting frame. Wherein the first clamping mechanism comprises a first clamping piece and a second clamping piece, the first clamping piece and the second clamping piece are used for clamping fabric, and the second clamping piece can be relatively close to or away from the first clamping piece. When the fabric is located between the first clamping piece and the second clamping piece, the first clamping piece and the second clamping piece can rotate so that the first clamping piece and the second clamping piece can drive the fabric to be wound, and the second clamping piece can move towards the first clamping piece and clamp the fabric with the first clamping piece under driving of the fabric. According to the technical scheme of the embodiment of the invention, the fabric is fixed and tightened, and the operation safety during fabric fixing is improved.

This application discloses a spraying device and process for a wear-resistant coating on a titanium ball valve, relating to the field of ball surface spraying. It includes a body, a first rotating arm, a second rotating arm, an inner support assembly, support wheels, a centering assembly, and a plasma spray gun. The first rotating arm is rotatably mounted on the body, and the second rotating arm is slidably mounted on the body. When the second rotating arm slides towards the first rotating arm, it engages with the first rotating arm to form a coaxial rotational fit. The inner support assembly is provided on both the first and second rotating arms, and the support wheel is provided on both the first and second rotating arms. The support wheel is slidably mounted on the two rotating arms, supporting the inner wall of the ball and forming a sliding fit with the ball. The centering assembly includes two synchronously sliding centering plates, and a pre-support portion is provided on the centering plates. This application can prevent the spray gun from producing dry spray, reducing waste.

This utility model relates to the field of mounting bracket technology, specifically to a television mounting structure. The specific technical solution is as follows: A television mounting structure includes a wall mount and a hanging strip mounted on the wall mount. The wall mount has parallel hanging plates facing the same direction along its length. The hanging plates are L-shaped. The hanging strip has multiple hook plates along its length, each hook plate being 7-shaped. Two hanging plates simultaneously adapt to hook plates of different heights. This utility model solves the problem of cumbersome television height adjustment in existing technologies.

The utility model relates to the technical field of fire hydrant, and disclose a fire hydrant system water testing device for fire detection, including fire hydrant body still include: the rotating disc that rotates in fire hydrant body top, and the side flange of fire hydrant body is connected with the connecting port. Through the setting of connecting assembly, the connecting pipe is aligned with the connecting port, and then the connecting pipe is inserted in the inner cavity of the connecting port, and the second wedge is inserted in the inner cavity of the positioning shell and engaged with the first wedge while being inserted, and the spring is opened while being engaged with the first wedge, and the first wedge is moved while the first wedge is opened, and the sliding sleeve is moved on the surface of the sliding rod while the first wedge is moved, at this moment, the first wedge and the second wedge are firmly engaged, and then the damping pad is attached to the inner cavity of the connecting pipe, preventing water leakage, and then the clamping plate is rotated through the rotating shaft after connection.