61results about How to "Easy and fast assembly and disassembly" patented technology

The invention discloses a cutter head device of a farmland ditcher, including a cutter head axis and a cutter head; the cutter head device is characterized in that the section of the cutter head axis which is matched with a cutter head axis hole can be divided into two parts of a cutter head assembling segment and a cutter head positioning segment from inside to outside, the cutter head assembling segment is a cylinder or a truncated cone, and the cutter head positioning segment is a prism; being corresponding to the cutter head assembling segment and the cutter head positioning segment of the cutter head axis, the cutter head axis hole can be divided into a cutter head assembling hole and a cutter head positioning hole, the cutter head assembling hole is a cylindrical inner hole or a truncated cone inner hole, and the cutter head positioning hole is a prism inner hole. The cutter head device overcomes the defects existing in the prior art for a long time that the disassembly of single key and spline cutter heads is troublesome, the cutter head can be inversely installed but is hard to use and likely to be damaged. The cutter head device has simple structure, easy processing as well as convenient, quick and reliable assembly and disassembly.

The invention discloses a cable inlet wire winding drum device of a roll changing trolley, comprising a base, wherein the base is provided with a motor and a winding drum device, the winding drum device comprises an iron winding drum, an inner end plate, an outer end plate and a plurality of connecting bolts, the inner wall of the winding drum is welded and fixed with a plurality of steel pipes which are uniformly arranged, the connecting bolts sequentially pass through the outer end plate, the steel pipes in the winding drum and the inner end plate and are fastened by nuts, the nuts are connected and the fixed on the inner side of the inner end plate, the motor is connected with the winding drum device by a transmission mechanism and can drive the winding drum device to rotate, the winding drum is also provided with a wire inlet port, the wire inlet port is rectangular, two sides (arranged at the circumference of the winding drum) of the wire inlet port and one side (arranged in the direction of the inner end plate) of the wire inlet port form extending section which turn and roll outwards, and the surface of each extending section is provided with a rubber layer. The winding drum device disclosed by the invention can conveniently wind and release a wire for travelling of the roll changing trolley and also has the advantages of being simple in structure, convenient, rapid and labour-saving for dismounting, good in cable and winding drum protective effect and long in service life.

A housing includes a housing body defining a receiving space, having a lateral opening, and including two fixed plates one of which is formed with a latch hole. A carrier device includes a carrier frame rotatably connected between the fixed plates and rotatable into and out of the receiving space through the lateral opening and having at least one first connection part, at least one locking member releasably engaged to the latch hole and including a second connection part slidably connected to the first connection part, and at least one resilient biasing element configured to bias the locking member toward the latch hole.

A housing includes a housing body defining a receiving space, having a lateral opening, and including two fixed plates one of which is formed with a latch hole. A carrier device includes a carrier frame rotatably connected between the fixed plates and rotatable into and out of the receiving space through the lateral opening and having at least one first connection part, at least one locking member releasably engaged to the latch hole and including a second connection part slidably connected to the first connection part, and at least one resilient biasing element configured to bias the locking member toward the latch hole.

The invention relates to a solar cell array and antenna deployment test device for spacecraft such as a satellite and the like, and provides a zero-gravity suspension type deployment test device which overcomes the shortcomings of the air-floating deployment test device in the prior art and solves the problem existing in simulation of the zero-gravity state of the environment orbit of the solar cell array and antenna of the satellite in the ground gravity environment. The zero-gravity suspension type deployment test device is characterized by comprising a support system [1], a guide rail system [2] and a hanging system [3]. The support system [1] comprises four upright frames and a horizontal frame. The guide rail system [2] comprises two longitudinal guide rails, multiple transverse guide rails and a guide rail hanger. The guide rail system [2] is mounted below the horizontal frame. The hanging system [3] comprises a rolling bearing frame, a tubular dynamometer and a connecting piece. Through the invention, the problems existing in simulation of the zero-gravity state of the environment orbit of the solar cell array and antenna of the satellite in the ground gravity environment and the like are solved, and beneficial effects of simple structure, convenience in use, strong adaptability and the like are obtained.

A special tong for assembling and disassembling chains comprises a first half body and a second half body, wherein the first half body and the second half body are pivotally connected to each other; a first transverse recess is formed in a first clamping portion of the first half body, is positioned in the inner side surface of the first clamping portion and runs through a left side surface and a right side surface of the first clamping portion; the width of the inner side surface of the second clamping portion of the second half body is greater than that of the inner side surface of the first clamping portion; a second transverse recess and two intervening preventing recesses are formed in the second clamping portion; the second transverse recess is positioned in the inner side surface of the second clamping portion and runs through a left side surface and a right side surface of the second clamping portion; and the intervening preventing recesses are respectively formed in the left side surface and the right side surface of the second clamping portion. Owing to the intervening preventing recesses, when a positioning plate is assembled or disassembled, the tong can be prevented from colliding with an adjacent latch, intervening is avoided, and assembling and disassembling operations are quite quick and convenient.