11results about How to "Meet different usage requirements" patented technology

The utility model discloses a multifunctional table lamp which comprises a base, a lamp arm structure installed on the base in a horizontal rotating mode and a lamp cap installed at the upper end of the lamp arm structure, a second lamp arm is arranged at the lower end of the lamp arm structure, and a power source PCB is arranged in the second lamp arm. The power supply PCB is provided with a power supply input interface for supplying power and a power supply output interface for external electronic products; the lamp arm structure is further provided with an auxiliary lighting module used for emitting light to assist in lighting. According to the utility model, the lighting function is realized through the lamp holder, and the lamp holder is adjusted to an optimal position so as to realize lighting at a preset position; the power supply output interface can be connected with an external electronic product through an external charging line to charge the external electronic product, the function of a power bank is achieved, the auxiliary lighting module can be used for emitting light to assist lighting, the light illuminance is large, most of the visual area of the table top can be covered, the overall illuminance is uniform and natural, and the practicability is high. The use requirements of customers are met.

The utility model discloses a kind of vehicle-mounted high-definition video transmission high-power charging circuit, it includes: MQS connector;LED driver, with LED being connected, and LED driver connects MQS connector;Power surge protection module, it connects MQS connector;Anti-reverse circuit module, it connects the output end of power surge protection module;DC-DC controller module, it connects the output end of anti-reverse circuit module;TYPE-C interface, it is connected with DC-DC controller module;USB signal demultiplexer, it connects TYPE-C interface;ADI high-speed differential transceiver module, it connects USB signal demultiplexer and is used to convert parallel video signal into serial differential signal;DC-DC power module, it is connected between MQS connector and ADI high-speed differential transceiver module;Fakra connector, it connects ADI high-speed differential transceiver module to output serial differential signal.

A folding handlebar structure, a turning seat and a left folding seat and a right folding seat are respectively installed on a vertical tube and a left handlebar tube and a right handlebar tube, the turning seat is hinged to the bottom ends of the left folding seat and the right folding seat, the top ends of the left folding seat and the right folding seat are respectively hinged to a four-link quick lock and a connecting rod, the four-link quick lock is hinged to the other end of the connecting rod, and when the handlebar is unfolded, a dead point can be formed between the connecting rod and the hinged end of the left folding seat or the right folding seat; in addition, a locking structure is also installed between the four-link quick lock and the left folding seat or the right folding seat to stabilize the handlebar in the unfolded state. The structure of the folding handlebar is simple, but through the setting of the four-link dead point and the cooperation of the safety buckle and the safety hook, an extremely stable working effect can be formed, and it is also conducive to meeting different use requirements and improving its applicability; in addition, the handlebar is extremely easy to fold and unfold, which can effectively improve the convenience of the folding operation.

The present application relates to polyester material, disclose a kind of aliphatic-aromatic polyester and its preparation method and application.The light transmittance of the aliphatic-aromatic polyester is greater than 90% when the thickness is 5-100mm, and the elongation at break of the aliphatic-aromatic polyester is 50-1050%.The preparation method comprises the following steps: (1) under esterification reaction conditions, aliphatic diol monomer containing the structure shown in formula (I), aromatic monomer containing the structure shown in formula (II) and catalyst are mixed to carry out first stage reaction, and obtain prepolymer;(2) under polycondensation reaction conditions, the second stage reaction is carried out to the prepolymer.The aliphatic-aromatic polyester not only has good toughness, but also has good light transmission performance.

The utility model provides a kind of far image display device, including image source, optical module, window and shell.Image source is configured as exit image light.Optical module is set in the light path downstream of image source, including at least one free curved mirror, to receive the image light amplification and reflection of image source exit.Optical module is set in the light path downstream of window, and reflected image light is emitted by window.Image source and optical module are set in shell, and reflected image light is emitted to the outside of shell by the position of window in shell.Window includes two mutually spaced and non-light-transmitting sub-windows.The distance between the shape center of two sub-windows is 50-80mm.Or window is connected whole, and optical module deflects image light, so that the optical axis of image light reflected by free curved mirror is perpendicular to window.The embodiment of the utility model is beneficial to simplify optical module, simplify far image display device structure, reduce volume, reduce light loss, and meet different use requirements.

The utility model discloses a mechanical keyboard with an under-shaft composite pad, and belongs to the technical field of mechanical keyboards. Comprising a positioning plate and a PCB, the positioning plate is provided with a key hole and is provided with a shaft body unit with a positioning rod and an electrode pin, and the PCB is provided with a shaft body connecting seat. An under-shaft composite pad is clamped between the positioning plate and the PCB, the under-shaft composite pad comprises a flexible pad layer and a sound absorption pad which are overlapped and glued or welded, and a plurality of avoiding hole groups are synchronously punched. The receding hole set is provided with a center rod hole, an electrode penetrating hole, a lamp bead receding hole, a positioning hole and the like, and electric connection and assembly positioning of the shaft body unit and the PCB are achieved. According to the keyboard, the assembly process is simplified, the hole site precision is improved through synchronous blanking of the under-shaft composite pad, and the defective rate is reduced.

This invention discloses a computer case with an adjustable power supply mounting position and arbitrarily oriented placement. It includes a case frame, four side panels mounted on the top, bottom, left, and right sides of the case frame, front and rear panels mounted on the front and rear ends of the case frame, and a heat dissipation fan module mounted within the case frame and capable of emitting light. The four side panels and the front and rear panels form a mounting cavity with the case frame. A mounting bracket for mounting a graphics card and / or motherboard is provided within the case frame. The mounting bracket divides the mounting cavity into main and secondary mounting chambers. The main mounting chamber has at least one first mounting position on the side closest to the mounting bracket; the secondary mounting chamber has a second mounting position. The power supply is mounted in either the first or second mounting position, with its power interface facing or exposed in the secondary mounting chamber. One of the four side panels has a cable outlet. By interchangeably assembling the four side panels, the side panel with the cable outlet does not serve as a support surface, allowing the computer case to be placed in any orientation.

The utility model discloses a pulley assembly which comprises a wheel carrier and a pulley block installed on the wheel carrier, and the pulley block is provided with more than two pulleys arranged in the left-right direction. The pulley is mounted on the wheel carrier in an up-and-down moving manner; wherein the pulley is provided with a wheel and a wheel shaft, the wheel is installed on the wheel frame through the wheel shaft, and the wheel shaft is installed on the wheel frame in an up-and-down movable mode; adjusting wheels are arranged on the portions, on the left side and the right side of the wheel shaft, of the wheel frame, the adjusting wheels can be installed on the wheel frame in a left-right moving mode, and the wheel shaft makes contact with the adjacent adjusting wheels. Thus, the adjusting wheels are arranged on the pulleys and used for adjusting the heights of the wheels in a self-adaptive mode, the wheels in each row can make effective contact with the rails, stress of each wheel is balanced, the doors and the windows can be pushed and pulled more smoothly, abrasion between the wheels and the rails can be reduced, and the service life of the pulley assembly and the service life of the doors and the windows are prolonged.

The utility model discloses a multifunctional handheld fan, which comprises a handle, a fan main body and a control circuit board, the fan main body is arranged on the handle and can generate wind, the control circuit board is arranged in the handle, a rechargeable battery for supplying power is arranged in the handle, the control circuit board is connected with the rechargeable battery, and the control circuit board is further electrically connected with the fan main body. A rotating structure is arranged between the handle and the fan body, the angle of the fan body can be adjusted relative to the handle through the rotating structure so as to meet different use requirements of different users, the fan body can be folded and attached to the handle through the rotating structure, and then the height of the multifunctional handheld fan is further reduced. The storage and the carrying are more convenient; the handle is further provided with a charging structure which is electrically connected with the control circuit board and used for charging external electronic products, that is, the external electronic products are charged through the charging structure, the function of a power bank is achieved, and the multifunctional power bank has multiple functions so as to meet different use requirements of different users.

The utility model discloses a kind of air source heat pump units with double cold double temperature heat recovery function, including air conditioner side compressor;Heat recovery heat exchanger;Air conditioner air disc temperature regulating system, communicate with air conditioner side compressor, including air conditioner air disc side heat exchanger;Air conditioner floor heating temperature regulating system, communicate with air conditioner side compressor, air conditioner floor heating temperature regulating system includes air conditioner floor heating side heat exchanger;Water cooling temperature regulating system, communicate with air conditioner side compressor by heat recovery heat exchanger, water cooling temperature regulating system includes water cooling heat exchanger.By being equipped with air conditioner air disc temperature regulating system and air conditioner floor heating temperature regulating system can realize double temperature output, satisfy the temperature regulation of fan coil and floor heating, realize multiple temperature output, greatly save cost;Through water cooling heat exchanger heat exchange, fan coil and floor heating can be cooled and regulated, on the basis of air source temperature regulation, realize temperature water source regulation, realize double cold effect.

The utility model discloses an astronaut-shaped starry sky projection lamp which comprises an astronaut body model, an astronaut head model and a starry sky lamp assembly arranged in the astronaut head model, a spherical groove is formed in the lower end of the astronaut head model, and a spherical convex part is arranged at the upper end of the astronaut body model. The head model of the astronaut is mounted on the spherical convex part in a sleeving manner through the spherical groove, the elevation angle can be adjusted relative to the body model of the astronaut, and the astronaut can rotate by 360 degrees, so that multi-angle light emitting is realized, and different use requirements are met; the spherical convex part comprises a hard ball frame fixed with the body shape of the astronaut and a soft rubber sleeve fixed outside the hard ball frame, and the outer surface of the soft rubber sleeve is attached to and in interference fit with the spherical groove to have great friction force, so that it can be guaranteed that the head shape of the astronaut stably stays at the adjusted position and is stably arranged at the upper end of the body shape of the astronaut; the phenomenon that the astronaut head shape and the astronaut body shape are loosened is prevented, and the light effect is better.