47results about How to "Simple and reliable installation" patented technology

The invention belongs to the technical field of vibration noise control and particularly relates to an active vibration absorber. The magnetic resistance type electromagnetic active vibration absorber comprises a vibration absorber lower installation plate, a vibration absorber cover, a vibration absorber upper installation plate, a rotor assembly and a stator assembly. Four rolling guide rail pairs are installed between the rotor assembly and the stator assembly. The rotor assembly is connected with the vibration absorber lower installation plate and the vibration absorber upper installation plate through springs. The rotor assembly can freely vibrate through the rolling guide rail pairs. The magnetic resistance type electromagnetic active vibration absorber can be installed and used in combination with various types of passive vibration absorbers and can be arranged on a controlled object or a base at will, after a coil is electrified with alternating current, electromagnetic force is generated between the rotor assembly and the stator assembly, the stator coil generates Lorentz force, the resultant force of the electromagnetic force and the Lorentz force drives a vibration absorber rotor to move, the vibration absorption force generated by the vibration absorber rotor is used for offsetting the vibration of the controlled object, and the purpose of controlling vibration is achieved.

The invention provides a low-noise high-navigational-speed large-depth underwater unpowered upwards-floating test platform. The low-noise high-navigational-speed large-depth underwater unpowered upwards-floating test platform comprises a non-watertight outer shell, a floating force device, an electronic cabin, a release mechanism and a stern force bearing rod, wherein the floating force device is composed of a plurality of pressure withdrawing hollow floating balls and a floating ball outer frame; the non-watertight outer shell is composed of a bow end, a parallel middle body and a stern; the multiple pressure withdrawing hollow floating balls are fixedly embedded into the floating ball outer frame, and the floating ball outer frame is fixed to the interior of the parallel middle body; the electronic cabin is fixed to the interior of the stern through a flange, a sensor and a data collecting device are loaded inside the electronic cabin, and a depth sensor is loaded outside the electronic cabin; one end of the stern force bearing rod is fixedly connected to the electronic cabin, and the other end of the stern force bearing rod is fixedly connected with the tail end of the stern of the outer shell; and the release mechanism is composed of a weight and a releaser, and the weight is connected with the other end of the stern force bearing rod through the releaser. The test platform can serve as an underwater structure flow-induced near-field or a far-field noise test verification platform.

The invention discloses a self-inducing magnetic resistance type electromagnetic damper and belongs to the technical field of vibration noise control. The damper comprises a housing stator assembly and an internal active cell assembly, wherein the housing stator assembly and the internal active cell assembly are assembled together, the internal active cell assembly freely moves with respect to the housing stator assembly, a soft magnetic metal magnet yoke and a coil in the internal active cell assembly move in a magnetic field produced by the housing stator assembly, respectively produce eddy current and a Lorentz force hindering cutting magnetic induction line motion of the coil and meanwhile produce an electromagnetic force hindering cutting magnetic induction line motion of the soft magnetic metal magnet yoke, and the electromagnetic force is far greater than the Lorentz force. The damper can output lots of damping forces greater than a traditional electromagnetic damper, meanwhile has good anti-swing and anti-impact performance and has very high engineering applicability.

The invention relates to a two-way communication tire pressure monitoring system. The two-way communication tire pressure monitoring system comprises a plurality of transmitters, a plurality of low-frequency antennas and a receiver, wherein a plurality of transmitters are fixed on an automobile rim respectively, each transmitter comprises a low-frequency receiving module for receiving a low-frequency wake-up signal; a plurality of low-frequency antennas are used for transmitting all low-frequency wake-up signals respectively; the receiver is arranged inside an automobile body and comprises one or more low-frequency driving modules which are connected with all low-frequency antennas in a wired manner for outputting all low-frequency wake-up signals to all low-frequency antennas respectively.

The invention provides a composite connector which reduces occupied portion of a substrate caused by a plurality of memory cards related to the carried substrate. The composite connector of the invention has at least a card insertion opening where a first and a second memory card (24, 25) can be plugged on a body (21). The body (21) has a first body (27) for connection and a second body (28) for connection connected with an edge of the first body (27) for connection. On the first body (27) for connection, a first card conductive cover (22) is covered by way of forming a first card insertion opening (45) and on the second body (28) for connection, a second card conductive cover (23) is covered by way of forming a second card insertion opening (53). Outer side surface of the first card conductive cover (22) is used as a slide surface of the second memory card (25) so that the slide surface faces the second card insertion opening (53).

The invention relates to an installation structure of a vertical self-priming pump on a chemical tank. The installation structure is characterized in that a base is installed on the vertical self-priming pump through a bolt B, an inlet special-shaped pipe penetrates through the base and is fixed on the inlet flange of the vertical self-priming pump through a bolt C and a nut B, an inlet rubber gasket is adopted for sealing between the inlet special-shaped pipe and the inlet flange of the vertical self-priming pump, the vertical self-priming pump is lifted up and installed on a tank body flange through the base, the base and the tank body flange are fixedly connected through a bolt A and a nut A, a tank body flange opening is arranged on the tank body flange and one end of the inlet special-shaped pipe stretches into liquid in a tank body. The installation structure of the vertical self-priming pump on the chemical tank has the advantages that: 1) the cost is saved, the tank body and the tank body flange are not required to be modified at all, the vertical self-priming pump is not required to be modified at all, and two simple parts, i.e. the base and the inlet special-shaped pipe are only required to be added; and 2) the installation method is simple and reliable, the entire installation can be completed as long as the base and the tank body flange are connected through the bolt and the nut, and the entire process is simple and easy to operate.

The invention discloses a cooling room and a cooler unit air volume control method of the cooling room. The cooling room comprises a cooling room body, an air velocity sensor and a cooler unit. A through hole is formed in the cooling room body. The cooling room body is internally provided with an accommodating space. The accommodating space is internally provided with a cooling channel and a storing space. The cooling channel communicates with the outside of the cooling room body by the through hole. The air velocity sensor is arranged at the through hole. The air outlet of the cooler unit communicates with the cooling channel. The cooler unit is used for supplying air to the cooling channel based on detection data of the air velocity sensor, and therefore the cooling channel can cool thestoring space. The technical problems of the poor synchronism between cooler unit air output and actual demand and poor draught fan rotating speed controlling stability are solved.

The invention provides a throttler for an air floatation part and an air floatation piston comprising the throttler. The air floatation part is provided with a mounting cavity for mounting the throttler and an air outlet hole which communicates with the mounting cavity; the local area or the whole area of the outer side face of the throttler is a rough surface, the throttler is fixedly connected to the air outlet hole in the mounting cavity in an interference fit connection mode, part of the rough surface of the throttler faces the air outlet hole, after air enter into the mounting cavity, and the air makes contact with the rough surface and flows into the air outlet hole through the rough surface to achieve gas throttling. Compared with single small hole throttling, the throttler has the advantages that the risk of dirt dust particle blockage can be reduced, the throttling reliability is improved, throttling is achieved through the rough surface, machining is easy, large-batch production and installation are convenient, and the cost is low.

The invention provides an insertion type ultrasonic flowmeter.The insertion type ultrasonic flowmeter comprises a connecting rod; the lower end of the connecting rod is fixed to a flow reflection mechanism through a locating screw, the outer wall of the middle of the connecting rod is connected with a ball valve in a sleeved mode, and the upper end of the connecting rod is fixed to a meter head assembly through a meter head connecting assembly; a pressure sensor assembly is arranged between the ball valve and the meter head assembly and connected with the meter head assembly and a connecting pipe of the ball valve respectively; the flow reflection mechanism can be arranged in a pipeline and comprises a fixed base like a hollow pipe, the outer wall of the fixed base is fixed to the lower end of the connecting rod, two ultrasonic sensors are fixed to the upper end of the inner wall of the fixed base, and two ultrasonic reflectors are fixed to the lower end of the inner wall of the fixed base; the two ultrasonic sensors and the two ultrasonic reflectors are located in the same right-angle quadrangle, and opposite end faces of the two ultrasonic reflectors are each provided with a bevel used for reflecting ultrasonic waves.Through the insertion type ultrasonic flowmeter, installation is simple and reliable, there is no need to conduct null point debugging or flow calibration on site, and overhaul and maintenance in a later period are both convenient.

The invention discloses a vehicle-mounted brake device for an automobile rear impact test, which mainly comprises an electric control device, a pneumatic device and a mechanical connection device. Theelectric control device comprises a controller; the controller is electrically connected with a valve control module, a test trigger interface, a reset button, a trigger switch and a delay module; the test trigger interface is externally connected to the trigger switch; and the trigger switch is attached to the most protruding part of the rear impact surface of an impacted vehicle. The pneumaticdevice comprises a gas cylinder, a pipeline and a leg type device, the gas cylinder is connected with the leg type device through the pipeline, the valve control module is arranged on the pipeline, and the leg type device is a cylinder and piston rod assembly; the mechanical connection device is used to connect the leg type device to a seat and simulate knee and ankle motions. The vehicle-mountedbrake device has the advantages of simple structure, convenient installation, stable and reliable braking effect, and installation and use are not limited by the vehicle type.

The invention provides a self-lubricating friction-reducing sliding bed plate, being characterized in that a square groove (2) is arranged on the upper end face of a sliding bed table (1); a wear-resisting self-lubricating plate (4) is embedded into the square groove (2); front, rear, left, right and lower directions of the wear-resisting self-lubricating plate (4) are positioned by the square groove (2), and the upper surface of the wear-resisting self-lubricating plate (4) is protruded from the upper end face of the sliding bed table (1); the square groove (2) is a rectangular groove, and one side of the rectangular groove is provided with a notch (3); the wear-resistant self-lubricating plate (4) is a rectangular structure formed in one step; and the wear-resistant self-lubricating plate (4) and the square groove (2) are bonded together by an adhesive, so that the wear-resisting self-lubricating plate (4) and the sliding bed table become an integral whole. The invention simplifies the structure of the sliding bed table, has lower manufacturing cost and high production efficiency; the wear-resistant self-lubricating plate is made of modified polytetrafluoroethylene, which can effectively reduce the surface friction coefficient of sliding table, and its wear resistance and plastic creep resistance can meet the requirements of the tip rail.

The invention provides an online detection device for a shield tunneling machine cutter, which relates to the technical field of shield tunneling machines. The device comprises a blind hole, a reflector, a laser sensor, a transparent plug, a magnetic object to be detected, a magnetic sensor, an acceleration sensor and a signal acquisition and control system, wherein openings of the blind holes are formed in an inner wall of a cutter hub and extend into a cutter ring; the reflector is arranged at the bottom of the blind hole; the laser sensor is arranged on the cutter shaft sleeve, emits a laser signal into the blind hole and receives a reflected laser signal; the transparent plug is arranged at one end of the blind hole close to the opening; the magnetic object to be detected is arranged on an inner wall of the cutter hub; the magnetic sensor is arranged on the cutter shaft sleeve and is used for detecting the magnetic object to be detected; the acceleration sensor is arranged on a shaft sleeve of the cutter shaft and used for monitoring a vibration state of the cutter in the operation process. The device is advantaged in that technical problems that in the prior art, a traditional detection method is complex in process, low in reliability and safety, difficult to deal with complex geology and prone to causing damage to a system are solved.

The invention provides a self-propelled movable inverted arch trestle. According to the self-propelled movable inverted arch trestle, the left-right position of an inverted arch formwork system and abridge main body can be adjusted through a transverse movement hydraulic oil cylinder, the front-rear position of the inverted arch formwork system can be adjusted through a trestle travelling mechanism, and the vertical height of the inverted arch formwork system can be adjusted through a lifting mechanism on the inverted arch formwork system, so that the positioning of the inverted arch formworksystem is more accurate and faster, and construction requirements of high standards can be met. In addition, the inverted arch formwork system can realize the inverted arch operation construction ofa whole tunnel with the same section after being installed at a time, formwork assembly and disassembly are omitted, movement and positioning are mechanically controlled in a full-automatic mode, thelabor intensity of workers is greatly reduced, the labor cost is saved, and the construction efficiency and the construction quality are improved.

The invention discloses an oil collecting device. The oil collecting device comprises an oil cup body with an opening in the top end, and is characterized in that the two ends of the oil cup body in the length direction are open; and the oil collecting device further comprises plug mechanisms detachably arranged at the openings in the two ends of the oil cup body as well as hooks used for being connected with an external installation foundation, wherein the two ends of the oil cup body are sealed through the plug mechanisms, and the plug mechanisms are clamped into the hooks. The invention further discloses a range hood applying the oil collecting device. Compared with the prior art, the oil collecting device and range hood applying the same has the advantages that the two ends of the oilcup body are blocked through the detachable plug mechanisms, the plug mechanisms cooperate with the hooks so that the oil collecting device can be conveniently installed, the installation mode is simple and reliable, and installation failure caused by insertion pieces can be avoided.

The invention discloses a fixed device of a permanent magnet. The fixed device comprises a cover body, wherein the cover body covers the permanent magnet to make the permanent magnet fixed on a rotor and comprises a rectangular-ambulatory-plane top plate and side plates, the rectangular-ambulatory-plane top plate is fixedly connected, and the side plates encircle the top plate; when the fixed device is used, the cover body covers the permanent magnet, the permanent magnet can be pressed on the rotor by the rectangular-ambulatory-plane top plate and is prevented from being disconnected with the rotor, the permanent magnet can be circumferentially fixed by the side plates and is prevented from moving, a rectangular-ambulatory-plane gap can be formed in the periphery of the top of the permanent magnet and is matched with the rectangular-ambulatory-plane top plate, a top surface of the permanent magnet can be flush with an external plate surface of the top plate, an air gap is reduced, the external diameter size of the rotor is reduced, the magnetic hysteresis loss is reduced, and the magnetic field utilization ratio is improved. Therefore, the fixed device of the permanent magnet, provided by the invention, is simple in structure, and the permanent magnet can be simple and reliable to install and fix. The invention also discloses a permanent magnet motor comprising the abovementioned fixed device of the permanent magnet.

The invention relates to the technical field of a refrigerator in an electric appliance, in particular to a refrigerator handle structure. The refrigerator handle structure comprises a handle main body, wherein the handle main body is provided with a first groove and a second groove, a piece of handle glass is fixed in the first groove, and a handle gasket is fixedly arranged in the second groove. A layer of gasket which is made of TPE is added onto the part, which makes contact with the hand of the user, of the aluminum-alloy handle main body when the refrigerator door is opened, so that the refrigerator handle is soft and warm to touch when the refrigerator door is opened; moreover, a layer of tempered glass is additionally attached on the surface of the handle, the refrigerator handle can be beautified by changing the pattern of the tempered glass and utilizing the attractive patterns of the tempered glass, and the appearance of the handle also can be changed by changing the glass pattern.

The invention provides an expansion type rapid connecting piece for circular tube tracks, circular tubes and a working method. The expansion type rapid connecting piece for the circular tube tracks comprises a cylindrical connecting piece body, an external diameter of the connecting piece body is in clearance fit with internal diameters of the circular tubes, at least one counter bore is correspondingly formed in the positions, close to the two ends, of the top of the connecting piece body, wire sleeves coaxial with the counter bores are arranged at the top of the inner side of the connectingpiece body, and a bolt fixing structure arranged opposite to the wire sleeves is arranged at the bottom of the inner side of the connecting piece body; gaps extending to the inside from the end partsare correspondingly formed in the two sides of the bottoms of the two ends of the connecting piece body, transformation parts are correspondingly formed at the bottoms of the two ends of the connecting piece body, and the bolt fixing structure is arranged on the transformation parts; and when the two circular tube tracks are connected, expansion force generated from the interiors of the two circular tube tracks connects and fastens the two circular tubes, operation construction in a tunnel is greatly convenient for construction personnel, and the reliability of the circular tube tracks after connection is high.