5results about How to "Easy and quick release" patented technology

The utility model relates to the technical field of wheelchairs, in particular to a wheelchair protection fixing device which comprises a safety belt, the safety belt is transversely fixed to the upper portion of a wheelchair body, a protection assembly is installed on the front portion of the wheelchair body, the bottom of the protection assembly is fixed to the bottom of a backrest of the wheelchair body, and the top of the protection assembly is connected with the middle of the safety belt. An extension assembly is installed on the front side of the bottom of the wheelchair body, the protection assembly comprises a gasket, the gasket is located on a seat cushion of the wheelchair body, the top of the front end of the gasket is connected with a flexible cushion, the top of the flexible cushion is connected with screen cloth, and the top of the screen cloth is clamped and matched with the middle of a safety belt through a connecting mechanism. According to the wheelchair protection fixing device, the safety belt is transversely fixed to the upper portion of the wheelchair body and tightly connected with the protection assembly on the front portion, and the risk of slipping or injury is effectively avoided; and through the design of the connecting mechanism, clamping and releasing of the safety belt become simple and rapid, use habits of different passengers are adapted, and the practicability of the device is improved.

The application belongs to the technical field of petroleum drilling equipment, and discloses an integrated hydraulic chuck device, which comprises a shell, end covers, an adjusting mechanism and a clamping mechanism. The end covers are provided in two, and the two end covers are respectively detachably fixed at the two ends of the shell. The adjusting mechanism and the clamping mechanism are arranged in the interior of the shell. The adjusting mechanism comprises two piston guide blocks and two piston bodies. The two piston guide blocks are respectively fixedly connected with the two end covers. The piston bodies are respectively in sliding connection with the shell and the piston guide blocks. The clamping mechanism comprises two jaw seats and two jaw bodies. The two jaw seats are respectively fixedly connected with the two piston bodies. The two jaw seats are respectively provided with dovetail grooves. The jaw body is installed on the jaw seat through the dovetail groove. The two jaw bodies are oppositely arranged to form a clamping hole. The application has compact structure and convenient jaw replacement. During work, the drilling rod can be conveniently and quickly clamped and released, and the operation difficulty and the scratching risk are reduced.

The utility model relates to the technical field of water pump machining, and provides a water pump clamp capable of being assembled according to needs, which comprises a working table, two mounting frames, a clamping mechanism, a clamping block, an adjusting clamping assembly, a spring telescopic rod I and a positioning assembly, the two mounting frames are connected to the working table in a sliding manner, the clamping mechanism is mounted on the mounting frames, and the clamping block is mounted on the spring telescopic rod I; by means of the technical scheme, the problems that in the prior art, due to the fact that the outer surface of a pump shell is very irregular, the assembly work of a water pump is started on the basis of the pump shell, and the assembly efficiency of the water pump is greatly improved are solved. The problems that a pump shell cannot be fixed very stably due to the fact that only two clamping plates are used for clamping, water pump parts can shift or incline when being subjected to force in various directions in the installation process, and the precision of a water pump is affected are solved.

The invention discloses a comprehensive testing fixture for a curved surface groove of a shaft part. A testing fixture supporting mechanism comprises a base, and a pedestal and a supporting block are connected to the base; the axial reference block is in sliding fit with the base, an elastic piece A is connected between the axial reference block and the base, the reference block is connected with a handle, and the clamp is connected to the supporting block. The bottom plate is in sliding fit with the base, and a fixing block is connected to the bottom plate; one end of the circumferential reference block is of a profiling structure, and an elastic piece B is connected between the circumferential reference block and the bottom plate; the first dial indicator is connected to the bottom plate, and a measuring head of the first dial indicator is in contact with the circumferential reference block; the second dial indicator is connected to the fixing seat, the bottom plate is connected with an axial detection reference block, and a measuring head of the second dial indicator is in contact with the axial detection reference block. Radial and axial rapid positioning is carried out on the curved surface groove, a three-base-plane detection reference system is accurately established, the detection mechanism carries out radial and axial detection on detected elements in the curved surface groove, and the detection efficiency is greatly improved.

The invention discloses a sound control automobile data recorder with an angle stable adjusting structure, the sound control automobile data recorder comprises a connecting seat, an automobile data recorder display and an automobile data recorder body, the automobile data recorder display is in communication connection with the automobile data recorder body, the connecting seat is provided with a hinged ball cover, the automobile data recorder display is provided with a hinged ball body, and the hinged ball body is provided with an angle stable adjusting structure. The universal hinge ball and the ball sleeve can be conveniently and rapidly loosened and locked through the reversing angle ejector mechanism, the situation that operation is difficult due to the fact that a nut needs to be adjusted from the rear portion of a display screen is avoided, the reversing angle ejector mechanism is fixed, and the universal hinge ball and the ball sleeve can be conveniently and rapidly loosened and locked through the reversing angle ejector mechanism. And through cooperation of the movable hemisphere and the elastic structure, it is guaranteed that the friction face of the movable hemisphere is tightly attached to the surface of the inner wall of the hinged ball sleeve, the friction force is improved, the stability is improved, and the angle is more stable on the basis that operation is convenient.