7results about How to "Achieve partial replacement" patented technology

This invention relates to a prefabricated 3D-printed box-type concrete retaining wall and retaining wall system. The prefabricated 3D-printed box-type concrete retaining wall is assembled from 3D-printed concrete retaining wall units. Each 3D-printed concrete retaining wall unit is an integrated 3D-printed concrete structure, consisting of an arched outer wall panel, a concave inner wall panel, and concave side wall panels, which enclose a cavity. A transverse keyway is formed between the concave side wall panels of adjacent 3D-printed concrete box-type retaining wall units. Shear keys are formed by casting cement-based material within the transverse keyway, enabling the combined load-bearing capacity of the 3D-printed concrete retaining wall units. Under the same loading conditions, the peak bearing capacity of the structure of this invention is significantly improved compared to traditional vertical box-type retaining walls, and the bearing performance is further enhanced under simulated backfill conditions, demonstrating good engineering applicability and green construction value.

This utility model discloses a guiding device for polyester fiber processing, relating to the field of polyester fiber guiding technology. The device includes a base with support frames welded to both ends. A rotating assembly is rotatably connected to the top of each support frame. A guiding assembly is located at one end of the rotating assembly. The guiding assembly includes multiple guiding wheels, each with screw holes on its front surface. Each guiding wheel includes a first splicing plate and a second splicing plate, with guiding grooves on their outer edges. This solution solves the problem that existing polyester fiber guiding methods often result in damage and replacement of the guiding wheels due to prolonged friction. Furthermore, most existing guiding wheels are integral structures, requiring complete replacement and incurring high costs.

The utility model provides a solution dropping device which comprises a carrier plate, a micro motor is mounted in the middle of one side of the carrier plate, a screw is mounted on an output shaft of the micro motor, a moving seat is arranged on the lower side of the micro motor, a piston rod is mounted on the lower surface of the moving seat, and a lug is arranged on the lower side of the moving seat. The lower end of the piston rod penetrates through the lug seat and is provided with a piston, a first clamping seat is installed on the lower surface of the lug seat through a screw, a second clamping seat is arranged on the side, away from the carrying plate, of the first clamping seat, a transparent pipe is clamped between the first clamping seat and the second clamping seat, and the lower portion of the face, away from the first clamping seat, of the carrying plate is sunken to form a positioning groove. A positioning groove is formed in the first clamping seat, a positioning plate is inserted in the positioning groove, two counter bores are formed in the face, away from the first clamping seat, of the second clamping seat, and long screws are inserted in the counter bores.

The utility model discloses a multifunctional orchard ladder, which relates to the technical field of orchard ladders, and comprises a left support leg, a right support leg and pedal frames, and the pedal frames are uniformly connected between the left support leg and the right support leg; top frames are connected to the top ends of the left supporting leg and the right supporting leg, two fixing rods are fixed between the top frames, and dismounting assemblies are arranged on the outer sides of the top frames. According to the orchard ladder, the mounting grooves are reserved in the left supporting leg, the right supporting leg and the telescopic sleeve, the bases are correspondingly welded in the mounting grooves, then the ground inserting screws, the butt joint screws and the connecting screws can be correspondingly mounted in the bases, and when the orchard ladder is used in a muddy ground, the ground inserting screws can be inserted into the ground to improve the placement stability of the orchard ladder; and the end part of the butt joint screw rod is matched with a universal rotating ball to be matched with a universal foot cup, so that the left supporting leg and the right supporting leg can deal with complex terrain support, namely, the left supporting leg and the right supporting leg can be stably used in potholes, bulges or uneven grounds.

The utility model discloses a packing structure for seawater desalination, which belongs to the field of container manufacturing and comprises a plate cylinder, a plurality of support rods are arranged in the plate cylinder in parallel, and two ends of each support rod are connected onto the inner wall of the plate cylinder; a plurality of stand columns are arranged on the supporting rod and are parallel to the center line of the plate cylinder. The two stand columns at different positions are sleeved with spiral-wire-shaped rings, and each spiral-wire-shaped ring is formed by winding at least one spiral wire. The utility model not only facilitates the installation and arrangement of the filler, but also facilitates the replacement after local damage, and is low in cost.

This utility model provides a uniform defrosting structure for a defrosting heating element in a frost-free refrigerator, relating to the field of defrosting equipment technology. It includes a heating box, a connecting frame, an air diffuser, a heating element, a heat exchanger, a fan motor, and a main frame. The main frame has circular mounting holes on both sides, and each heating element has a set of circular heads on both sides, which are mounted on the sides of the main frame. The heat exchanger has a series of through-holes inside, and one side of the heating element is mounted on one side of these holes. The connecting frame has two sets of threaded circular holes on one side, and each side of the heating box has a set of connecting plates with a set of circular holes. The connecting plates on both sides of the heating box are fastened to one side of the connecting frame with screws. The mounting of the heating element to the main frame and the grouped electrical connections of the heat exchanger allow for partial replacement, reducing maintenance costs. The fan motor accelerates hot air diffusion, expanding the range and improving efficiency. The connecting frame optimizes the path, reducing blind spots and ensuring uniform defrosting.

The application discloses a large-scale flotation machine disperser replacement method for mines and belongs to the technical field of mine mechanical equipment. The method comprises the following steps: a new disperser composed of a new four-piece assembled arc block is adopted, a "composite process cutting method" is adopted to safely decompose an old integral rubber-steel composite disperser, that is, rubber of the main body is first cold cut, rubber of the steel plate area is then separated with the aid of heat, exposed steel plates are finally gas cut, and a complete limited space safety operation system is integrated; according to a slot-in situ replacement mode that old dispersers are hoisted out and new dispersers are assembled in slots, efficient, safe and accurate partial replacement of a core component of a large-scale flotation machine is realized, a construction period is short, risks are controllable, and a standardized maintenance process that can be popularized is formed.