32results about How to "Does not add significant weight" patented technology

The invention belongs to the technical field of agriculture product processing, and particularly relates to a flat plate type vacuum pulsation drying machine. The flat plate type vacuum pulsation drying machine comprises a machine body, a control unit, a material drying unit and a pulsation vacuum unit, wherein the material drying unit is provided with multiple layers of material shelves. According to the flat plate type vacuum pulsation drying machine disclosed by the invention, a heating part adopts special electric heating plates, so that the processing is simple and convenient, the cost is low, the heating temperature is uniform, and the manufacturing cost, the using cost and the maintaining cost of the drying machine are greatly reduced; through a hierarchical control mode, corresponding heating plates can be opened according to actual processing amount, so that the energy consumption is reduced; meanwhile, soft material trays are adopted, so that the contact conditions between the material trays and the heating plates are remarkably improved, the quality of dried products can be effectively ensured, and the problem that the soft material trays are inconvenient to move is overcome by using a dedicated material tray shovel to assemble and disassemble the material trays; in addition, the flat plate type vacuum pulsation drying machine belongs to static drying, the breakage of materials cannot be caused; the processing and loading capacity of equipment can be effectively increased by virtue of a multi-layer structure.

The invention discloses a fabricated fibrous concrete combined deck structure and a construction method thereof. The combined deck structure comprises a steel bridge deck layer, wherein a fabricated fibrous concrete layer covers the upper surface of the steel bridge deck layer; the main body of the fabricated fibrous concrete layer is a cast-in-situ fibrous concrete layer; a plurality of prefabricated fibrous concrete plates are in embedded connection with the cast-in-situ fibrous concrete layer; tongue-and-groove joints articulated with the cast-in-situ fibrous concrete layer are arranged at the periphery of each prefabricated fibrous concrete plate; and the fabricated fibrous concrete layer is equipped with steel bars. The construction method comprises the following steps: the steel bridge deck layer is manufactured at first, and then the prefabricated fibrous concrete plates are manufactured and laid, or steel bridge deck blocks are prefabricated at first, and steel beams are erected and assembled; after that, the construction of the cast-in-situ fibrous concrete layer and the surface treatment are carried out in sequence; and the construction is completed finally. The combined deck structure disclosed by the invention can improve the tensile strength limit of concrete slabs and effectively prevent a pavement layer from cracks, and has good service durability, good fatigue resistance; and the construction process is simple and efficient.

The invention provides a backlight unit which comprises a back plate (2), a light guide plate (4) arranged in the back plate (2), a back light source (6) arranged on the back plate (2), and a heat dissipating film (220) arranged on the back plate (2). The heat dissipating film (220) is made of grapheme and is 0.01-0.05 thick. The backlight unit is effectively improved in heat dissipating effect through the arrangement of the heat dissipating film made of the grapheme on the back plate, enables heat to be evenly distributed on the whole surface in the plane direction of the heat dissipating film, and removes local heat points. Moreover, grapheme materials are light, so that the further-arranged heat dissipating film made of the grapheme can not obviously increase the weight of the backlight unit.

The invention relates to the technical field of virtual reality and specifically relates to VR glasses. The VR glasses comprise a glasses frame, glasses legs, a face mask, a sucker, a clamping buckle, support legs and spray modules. An adsorption plane and the face mask are arranged on the glasses frame; the sucker is fixedly connected with the clamping buckle; the sucker can be absorbed on the adsorption plane; the clamping buckle can be clamped to the nose bridge connection place of conventional glasses; an elastic rope is arranged between the clamping buckle and the glasses frame, and the elastic rope can prevent the sucker and the clamping buckle from being lost; the sucker and the clamping buckle are used for fixing the conventional glasses and the glasses frame; the support legs are foldably arranged under the glasses frame, and the support legs are used for supporting the glasses frame over the face; and the spray modules are arranged on the glasses frame and are used for spraying eye drops to eyes of a wearer. The VR glasses can prevent the conventional glasses from falling, and weight of the VR glasses is not increased significantly; meanwhile, wearing comfort level of the VR glasses can be improved; and eye drops can be sprayed to the eyes of the wearer, thereby relieving fatigue of the eyes of the wearer and improving watch quality of the wearer.

The invention discloses a reinforcing structure between longitudinal and transverse walls of a cold-formed thin-walled section steel house. The reinforcing structure comprises beams and wall frame columns, wherein the beams and the wall frame columns are mutually matched. The wall frame columns comprise lower-layer columns and upper-layer columns; the beams comprise floor beams (23), lower-layer house U-shaped beams (7) and upper-layer house U-shaped beams (8); the tops of the lower-layer columns are inlaid in openings of the U-shaped steel top beams (7) and fixed; the bottoms of the upper-layer columns are inlaid in openings of the U-shaped steel bottom beams (8) and fixed; the lower-layer columns and the upper-layer columns are connected through connecting pieces (12); anti-pulling pieces (17) are connected between the lower-layer columns and the U-shaped steel top beams (7), and anti-pulling pieces (17) are connected between the upper-layer columns and the U-shaped steel bottom beams (8); and H-shaped reinforcing components (6) between steel layers are connected between the U-shaped steel top beams (7) and the U-shaped steel bottom beams (8). The reinforcing structure is characterized in that oblique supporting pieces are connected between parts of the upper-layer columns and the U-shaped steel bottom beams (8) and/or oblique supporting pieces are connected between parts ofthe lower-layer columns and the U-shaped steel top beams (7).

The invention relates to a sensor for monitoring temperature/strain signals of bearings. The sensor is formed by preparing a strain sensitive layer (2) and a temperature sensitive layer (3) on an outer-ring end face (1) of a bearing. One end of the strain sensitive layer (2) and one end of the temperature sensitive layer (3) are overlapped with each other. The strain sensitive layer (2), the temperature sensitive layer (3) and the overlap surface of the strain sensitive layer (2) and the temperature sensitive layer (3) are insulated from the outer-ring end face (1) of the bearing. The resistance value of the strain sensitive layer (2) can change with strain so as to form a strain sensor. The voltage value of the overlap surface of the strain sensitive layer (2) and the temperature sensitive layer (3) can change with temperature so as to form a thermocouple temperature sensor. Signals are led out by leads (4) at the other end of the strain sensitive layer (2) and at the other end of thetemperature sensitive layer (3). A thin film sensor of a composite structure is realized, which can simultaneously detect the temperature and strain parameters of bearings.

The invention belongs to the field of wireless optical communication, and discloses a wireless optical communication atmospheric turbulence resisting method based on OAM mode hopping. The high-speed optical switch gates a modulated Gaussian beam to different spiral phase plates, the spiral phase plates convert the Gaussian beam into a vortex beam, and in each symbol period, the topological charge of OAM is changed for multiple times, so that the performance can be improved. According to the atmospheric turbulence resisting method, the spatial dimension of light is modulated, the structure is simple, a mode with good turbulence resisting performance can be selected in real time, the mode hopping rate can be dynamically adjusted, the problem that turbulence of different intensities cannot be adapted due to a fixed emission mode is avoided, the method is easily combined with an existing wireless optical communication system, the weight and the size of the system are not obviously increased, and optical power fluctuation caused by atmospheric turbulence can be effectively reduced.

A method for manufacturing non-woven glass fiber cloth, which includes manufacturing steps such as fiber expansion, resin impregnation, fiber smoothing processing, and finished product coiling, and can produce a non-woven glass fiber cloth for application In the production of various fiber composite products, the phenomenon of thread marks on the surface of the fiber composite products can be effectively improved, so that the surface of the surface layer can clearly present a reflection image of an object.

The invention provides a luggage box body structure and a manufacturing method thereof, wherein the luggage box body structure is a stereoscopic box body being made from a woven thermoplastic composite material. The box body includes four side plates, a bottom plate and four arc-angle end parts, wherein a sealed arc-shaped gap is formed at an adjacent connection position of each arc-angle end part and the bottom plate. Any two adjacent connection side plates are each integratedly extended to form a first laminated part and a second laminated part, wherein an integrated connection structure being free of notch is formed between the first laminated part and the second laminated part. The arc-angle end parts of the box body are folded and are attached to the first laminated part and a second laminated part and are arranged on an inner surface of one side surface to form an integratedly connected and laminated angle end structure. By means of the folding method, the plate material, of which the angle ends are not notched, are folded and are processed to form a stereoscopic concave box body structure, thereby achieving the object of increasing the strength of the angle end parts of the box body without increasing of the whole weight of the luggage box.

The invention provides a chopping knife. The chopping knife comprises a threaded conical section and a threaded truncated conical section, wherein the threaded conical section is provided with a head part and a tail part; the threaded truncated conical section is provided with a first end part with a smaller diameter and a second end part with a larger diameter, the first end part is connected with the tail part, the diameter of the first end part and the diameter of the tail part are equal, and the taper angle of the threaded truncated conical section is greater than the taper angle of the threaded conical section; the chopping knife additionally comprises a threaded cylindrical section which is connected with the threaded truncated conical section, wherein the diameter of the cylindrical section and the diameter of the second end part are equal. The threaded truncated conical section can expand wood to enable the wood to be easily cracked, the threaded cylindrical section can continuously expand the wood, the size and the weight of a conical head are not obviously increased, the product cost is reduced and the chopping knife is convenient to use.

The invention belongs to the technical field of civil construction engineering, and particularly relates to a building concrete compressive strength detection device which comprises a shell, a machineshell and an adjusting column. A machine shell is arranged in the shell, and the machine shell is of a cylinder structure. An adjusting column is fixedly connected to the position, close to the uppersurface of the machine shell, of the outer arc face of the machine shell, and the adjusting column is rotationally connected with the shell. Effective detection of the concrete surface compressive strength in the inclined state is effectively achieved, meanwhile, the concrete inclination angle specific corresponding numerical value can be effectively and synchronously detected in the detection process, effective conversion of the later compressive strength detection numerical value is facilitated, the situation that special angle detection on the concrete surface cause inconvenience in detection personnel, and the workload of the detection personnel is greatly improved can be avoided, The device has the advantages of simple structure, easiness in operation, no great increase of the weightof the rebound apparatus, convenience in carrying and detection at any time.