5results about How to "Not easy to detect" patented technology

The invention relates to the technical field of mine underground positioning, and discloses a UWB-based coal mine underground accurate positioning system, which comprises a UWB base station, a UWB label, a central processing unit and a data transmission network, and is characterized in that the UWB base station is installed on a monorail hoist and is used as a signal receiver, the UWB label is fixed on a wall or a ceiling of a roadway and is used as a signal transmitter, and the central processing unit is used as a signal receiver. The central processing unit is responsible for receiving data from the UWB tag, executing a PDOA algorithm and calculating the position of the monorail hoist, and the data transmission network is used for data exchange between the base station and the tag and between the tag and the central processing unit. The monorail hoist can be quickly positioned, and rescue action is facilitated.

The utility model provides a hidden installation frame for a camera, which comprises a picture frame, the top of the picture frame is fixedly provided with a placing groove, the front side wall of the placing groove is provided with hidden small holes, the front side wall of the placing groove is symmetrically marked with patterns, the top of the placing groove is provided with a clamping groove, and a clamping plate is installed inside the clamping groove. An auxiliary block is fixedly arranged on the rear side wall of the clamping plate, a limiting assembly is further installed in the containing groove, and a hanging assembly is further installed at the top of the picture frame. According to the hidden mounting frame for the camera, the camera is placed on the inclined plate in the placing groove, and the rear side wall of the placing groove is covered by the clamping plate, so that an accident can be recorded in time under a dangerous condition, and cracking of a case is assisted.

The utility model discloses a portable tire puncturing device, and particularly relates to the technical field of tire puncturing devices, the portable tire puncturing device comprises a shell, a groove is formed in the front end of the shell, a strong plastic plate is fixedly connected in the groove, a supporting plate is fixedly connected to the bottom wall of the inner surface of the shell, and a limiting assembly is arranged on the upper portion of the supporting plate. An extrusion assembly is slidably connected to the front portion of the bottom wall of the inner surface of the shell, a plurality of trigger assemblies located in front of the extrusion assembly are fixedly connected to the bottom wall of the inner surface of the shell, and a threaded rod is rotationally connected to the lower portion of the front side wall of the inner surface of the shell. Before the portable tire breaking device is used, the supporting plate is limited through the limiting assembly, the steel nails are arranged in the shell, workers are prevented from being punctured, the steel nails can be stacked and stacked for transportation in the transportation process, when the shell is placed on the road surface, the shell is in the shape of a deceleration strip in the hyperopia direction and is hidden, and the portable tire breaking device is convenient to use. And therefore, the pursuit of pursuit personnel is facilitated.

The utility model discloses a kind of spring seat of cold-rolled strip steel coiling machine jaw opening device, it is related to spring seat technical field, and it includes: second spindle housing;The inner side of second spindle housing is provided with pyramid sleeve, the inner side of the pyramid sleeve is provided with second spindle body, the outer side of the second spindle body is provided with second spring seat, the left end of the second spring seat is connected with second spring piece, the right end of the second spindle body is connected with spindle rear end, for with mechanical docking installation, the second spindle body is movably installed in the inner side of pyramid sleeve;Solve its complex structure, many fault points, spring seat is embedded to spindle interior, support roll and connecting shaft need to be installed in spindle end portion by transition flange, the split structure form of spindle leads to connecting bolt easy to break, simultaneously, spring seat structure strength is low, because the stress point of spring seat is higher, the bending moment received is larger, the technical problem that the root of spring seat is easily broken.

The present invention provides an automated analyzer that can highly accurately detect the position of a front end of a nozzle for dispensing, thus being able to highly accurately adjust the position of the nozzle. The automated analyzer according to the present invention includes: dispensing mechanisms (14, 15) including nozzles (21, 22) that dispense a reagent and a specimen, respectively, and dispensing arms (201) that move the nozzles (21, 22), respectively; cleaning tanks (26, 27) for cleaning the nozzles (21, 22) ; and an automated analyzer control unit that adjusts positions of the nozzles (21, 22). The automated analyzer analyzes a mixed liquid of the reagent and the specimen, the mixed liquid being held in a reaction cell. At the dispensing mechanisms (14, 15), stop positions of the nozzles (21, 22) are set. The dispensing mechanisms (14, 15) each include an imaging device (202) disposed on each of the dispensing arms (201). The automated analyzer control unit takes images of the nozzles (21, 22), using the imaging device (202), at imaging positions (407, 412) of the nozzles (21, 22). The imaging positions (407, 412) are positions to which the nozzles (21, 22) are allowed to move, respectively, and are positions different from the stop positions.