44results about How to "Avoid space constraints" patented technology

The invention discloses an aero-engine internal nut universal joint driven tightening device and method and belongs to the technical field of automatic assembly. The aero-engine internal nut universaljoint driven tightening device comprises a tool pre-locating system, a nut alignment locating system and a universal joint tightening system. A nut to be tightened is sleeved with a tightening sleevethrough the nut alignment locating system. A tightening motor drives the tightening sleeve to complete tightening operation. The aero-engine internal nut universal joint driven tightening device adopts the automatic operation mode to implement the steps of coaxially locating the tightening device and a rotor shell, rotating the tightening sleeve to the nut to be tightened, tightening the nut andthe like, has the characteristics of being high in automation degree, motion precision and tightening precision, reduces manual operation tasks, greatly simplifies the operation process, avoids errorscaused by manual operation and ensures the tightening consistency of the internal nut, and the working efficiency of whole machine assembling is improved.

Multiple input multiple output (MIMO) systems are able to provide wireless communications at increased data rates. These systems involve using a plurality of antennas on both the transmitter and receiver and the problem of how to accommodate such structures in user terminals, which are often required to be hand held then arises. An antenna arrangement which is suitable for MIMO communications and which can be incorporated into a user terminal such as a personal digital assistant (PDA) is described. A pair of co-polarised umbrella monopoles and a slot antenna are incorporated into a flap which extends at approximately 90° to the body of the PDA. A fourth monopole is mounted and protrudes from the PDA itself.

The invention relates to an implanted intracranial pressure monitoring device, a monitoring system and a using method of the monitoring system. The implanted intracranial pressure monitoring device comprises a sensing module, and the sensing module comprises a flexible substrate layer, a pressure sensing chip and a flexible coating layer; the pressure sensing chip is positioned on the flexible substrate layer, and the flexible coating layer at least coats the pressure sensing chip; the sensing module is embedded between skull and dura mater; and an in-vitro data reader matching with the implanted intracranial pressure monitoring device is used for realizing power supply, control and data transmission and reading of the implanted intracranial pressure monitoring device through wireless electromagnetic waves. According to the invention, the flexible substrate layer is used as the substrate of the implanted intracranial pressure monitoring device, and a core mainboard with low power consumption and an absolute pressure sensor with high precision, miniaturization and high reliability are adopted, so that the device has the advantages of long implantation service life, accurate monitoring, good stability, good safety and convenient implantation.

The present invention provides a kind of remote monitoring method for boiler and heating furnace. Data are acquired from the boiler and heating furnace and transmitted to remote control end, and the remote control end processes the data before feeding back the control data to the boiler and heating furnace. The data acquisition, transmission, processing and feedback are real-time completed. The said method can facilitate the after service, makes the after service low in cost and high in quality, and raise the safety of the boiler and heating furnace.

The invention discloses a linear guide rail locking device with a protecting function. The linear guide rail locking device is arranged between a moving part and a fixed part of a machine tool. The lateral surface of the moving part, which is opposite to the fixed part, is L-shaped; a guide rail sliding block is arranged on one surface of the moving part; a strip-shaped limiting block or a plurality of limiting blocks are convexly arranged on the other surface of the moving part along the length direction; a linear guide rail is arranged on the lateral surface of the fixed part, which corresponds to the guide rail sliding block; a plurality of through holes are parallelly formed in the lateral surface of the fixed part, which corresponds to the liming block, along the length direction; push rods are respectively arranged in the through holes; a groove is formed at the end of each push rod, which corresponds to the limiting block; a plurality of driving mechanisms are arranged on the outer lateral surfaces of the through holes of the fixed part and are connected with the push rods; and a first protecting block and a second protecting block are relatively arranged on the moving partand the fixed part. According to the linear guide rail locking device disclosed by the invention, a locking oil cylinder is arranged at a position outside the guide rails to avoid the space limit of the traditional arrangement, so that the size and the number of the oil cylinders can be better selected personally and further a larger locking force can be provided; and by arranging the protecting device, the linear guide rail can be better protected by using the large locking force.

The invention relates to a joint debugging device and a joint debugging method for a workpiece table interferometer and a mask table interferometer. The joint debugging device is used for on-line detection and adjustment of the workpiece table interferometer and the mask table interferometer in a photo-etching machine. The joint debugging device comprises a multi-side reflector detection assembly, a light-splitting prism set assembly, and a multi-side reflector reflection assembly, wherein the multi-side reflector detection assembly is used for adjusting the workpiece table interferometer, thereby locking the position of the workpiece table interferometer; the light-splitting prism set assembly is used for adjusting the multi-side reflector reflection assembly, thereby locking the position of the multi-side reflector reflection assembly relative to the light-splitting prism set assembly; and the light-splitting prism set assembly and the multi-side reflector reflection assembly are jointly used for detecting the parallel degree of the emergent beam of the mask table interferometer and the emergent beam of the workpiece table interferometer, thereby locking the position of the masktable interferometer.

The invention discloses a compact low-voltage grounding wire, which comprises an insulated operation rod, a wire clamp and a soft copper wire. The insulated operation rod is divided into a plurality of different segments. All the segments of the insulated operation rod are in hinged connection. Each of the segments of the insulated operation rod is capable of being rotated and bent at any angle. The insulated operation rod is composed of a plurality of continuously connected segments, and the plurality of continuously connected segments are in hinged connection. In this way, the bending and the angle adjustment of the insulated operation rod are realized, so that the insulated operation rod is not limited by the space during the hanging process. The operation difficulty in the narrow space is lowered. Meanwhile, the condition that due to the insulated operation rod cannot be bent, the insulated operation rod is exposed out of a switch cabinet and the door of the switch cabinet cannot be closed can be avoided. In addition, the angle position of the insulated operation rod can be freely adjusted according to the requirements of the actual operation space and the actual operation position. As a result, the insulated operation rod does not hinder other objects or bus bars or is not hindered by other objects or bus bars during the operation process. The wire clamp is provided with a limiting portion and jagged teeth, so that the wire clamp can be firmly fixed to a hung bus bar. The false hanging is avoided, and the safety is improved. Potential safety hazards are avoided.

The invention discloses a device and a method for realizing 3D printing by using a magnetic control flexible conduit robot, and belongs to the field of additive manufacturing. According to the deviceand the method, a special superimposed external magnetic field is adopted, and after specification accurate superimposition, the superimposed magnetic field has a zero magnetic field point at the geometric center of the superimposed magnetic field, the geometric center has radiation gradient fields near the zero magnetic field point on the plane, and the free end of a magnetic conduit disposed isrepelled in the radiation direction, so that the free end of the magnetic conduit is limited in a region. Therefore, a universal digital control method can be used to control the movement of the zeromagnetic field point, and a complex external magnetic field control mode can be used to control the movement of the free end of the magnetic conduit. A stable, easy-to-control and digitally controlledinvasive printing system is provided.

A workpiece table device of the invention comprises a workpiece table unit, an edge gas-liquid recovery unit and a heat isolation unit, wherein the edge gas-liquid recovery unit surrounds an edge position disposed in the workpiece table unit; and the heat isolation unit surrounds the inner side and/or outer side of the edge gas-liquid recovery unit. The invention provides a workpiece table deviceand an immersive lithographic device, which can thermally isolate a refrigeration source at the edge gas-liquid recovery unit from other parts of the workpiece table unit in order to prevent the energy in the edge gas-liquid recovery unit from leaking to other parts in the workpiece table unit and to improve the reliability of the workpiece table unit.

The invention provides a tea table type convenient cabinet, comprising a transparent tea table panel 1 and a base 5, wherein the base 5 is provided with a maintaining bin assembly 4 of which the upper surface is connected with the lower surface of a warehouse assembly 2 by being provided with support columns 3, the upper surface of the warehouse assembly 2 is positioned below the tea table panel 1; the warehouse assembly 2 comprises a warehouse body 21 of which the middle is provided with multiple warehouses 23, a lower turning bin door 24 at the bottom of the warehouse body forms a bottom surface of the warehouses 23, and mutually matched locking devices are arranged between the lower turning bin door 24 and the warehouse body 21. The convenient cabinet has the advantages of a multi-warehouse automatic vending machine, has the advantages of combination with indoor furniture, avoidance of field limitation and dual purposes by one machine, and belongs to brand new development and extension of a traditional lattice warehouse automatic vending machine, and appears on the market for the first time.

The invention discloses external power dredging equipment for a small-pipe-diameter drainage blind pipe of a tunnel and a working method. The external power dredging equipment comprises a rotary driving device; a power output end of the rotary driving device is connected with a vibration cutting mechanism through a power transmission mechanism; the power transmission mechanism is sleeved with a sliding pipe and a fixed pipe; one end of the sliding pipe is connected with the rotary driving device, the other end of the sliding pipe extends into the fixed pipe and is in sliding connection with the fixed pipe, and the vibration cutting mechanism extends out of the fixed pipe; the power transmission mechanism comprises a plurality of universal joints which are sequentially connected through connecting shafts, the universal joint at one end of the power transmission mechanism is connected with the rotary driving device, and the universal joint at the other end of the power transmission mechanism is connected with a cutting drill bit seat mounting column; and the multiple connecting shafts are rotatably sleeved with supporting pieces, and the multiple supporting pieces make contact with the inner walls of the corresponding sliding pipe and the corresponding fixed pipe. The blockage problem of the small-pipe-diameter drainage blind pipe can be quickly and conveniently dredged in a mechanical cutting and vibrating mode.

Provided are a convenient and rapid side-surface-screw-screwing-in structure and a using method thereof. The convenient and rapid side-surface-screw-screwing-in structure is used for screwing in a screw from the side surface direction relative to the facing direction of an operator. The convenient and rapid side-surface-screw-screwing-in structure comprises an installation positioning assembly (9) and a screwing-in driving assembly (8). The installation positioning assembly comprises a fixed positioning chassis (91) and a screw containing disc (92), a sliding foot part (922) used for being connected with an elastic friction gasket (21) arranged in a sliding chute (910) of the fixed positioning chassis (91) in a jointing mode is arranged at the bottom of the screw containing disc (92), and the elastic friction gasket (21) comprises elastic clamping parts (211) located on the two sides of the sliding foot part (922) and used for clamping and positioning the sliding foot part (922) and an elastic telescopic part (212) located on the bottom side of the sliding foot part (922) and used for allowing to adjust the upper and the lower positions of the sliding foot part (922).

The embodiment of the invention provides a wheel pressure balance structure and a crane, and relates to the technical field of wheel pressure balance. The problem that an existing wheel pressure balance structure is limited in wheel pressure balance effect is solved. The wheel pressure balance structure comprises a wheel frame, auxiliary wheels and a hydraulic pressure maintaining system, the auxiliary wheels are arranged in the middle of the wheel frame, the hydraulic pressure maintaining system comprises a constant pressure assembly and a hydraulic cylinder, the constant pressure assembly isused for adjusting fluid in the hydraulic pressure maintaining system so as to enable pressure of the hydraulic cylinder to be kept constant, the two ends of the hydraulic cylinder are connected withthe middle of the wheel frame and the auxiliary wheels, and the crane comprises the wheel pressure balance structure. Through the hydraulic pressure maintaining system, the pressure of the auxiliarywheels is always and constantly controlled within the limited range, the wheel pressure is constant and known, the wheel pressure balance effect is better, meanwhile, the auxiliary wheels are arrangedin the middle of the wheel frame, the whole machine width is not affected, the multi-unit combined work efficiency of the crane is not affected, meanwhile, the space limiting problem is solved, the effect of reducing the wheel pressure of the single wheel is achieved, and the problem that the existing wheel pressure balance structure is limited in balance effect is solved.

The invention discloses a data transmission device based on BMC, comprising: N BMC chips; a first MUX for receiving N network signals and outputting a received network signal according to the first control signal; a second MUX used for receiving M + N serial port signals and outputting a received serial port signal according to the second control signal; a third MUX configured to receive a networksignal outputted from the first MUX and a serial signal outputted from the second MUX, and output the received network signal or serial signal to the network interface according to the third controlsignal; a network interface; a control means for transmitting a corresponding first control signal, a second control signal and a third control signal according to the received instruction to determine the source of the output signal of the network interface. The invention also discloses a server, which has corresponding effect. The invention avoids the problem of space limitation caused by the excessive number of external network ports and serial ports.

The invention relates to a stone extractor for digestive department, which structurally comprises a stone extracting block, a telescopic rod, a connector, a machine body and a telescopic driving cavity, the side, provided with the stone extracting block, of the machine body is fixedly connected with the telescopic driving cavity, the connector is arranged on the side close to the stone extractingblock, the connector is movably clamped with the telescopic driving cavity, and the telescopic rod penetrates through the connector; the connecting head is in clearance fit with the telescopic rod, the stone taking block is located at the top end of the telescopic rod, the stone taking block is movably connected with the telescopic rod through the movable shaft, a wrapping cavity is an arc-shapedwrapping surface, and a ultrasonic probe and other part structures are wrapped in one cavity, so that when a probe body of the ultrasonic probe is twisted and broken, the broken probe falls into the cavity body of the wrapping cavity and does not fall out of the gap of the stone removing net, so that the broken probe is left in the body of a patient and is difficult to take out.

The invention relates to a drilling machine structure with convenience in use and a use method thereof. The drilling machine structure is used for drilling from the lateral direction relative to the direction to which a user faces. The drilling machine structure comprises a solid joint component (9) and a transferring component (8), wherein the solid joint component (9) comprises a solid joint seat (91) and a drill bit containing piece (92); a sliding connection foot piece (922) is arranged at the bottom of the drill bit containing piece (92) and is used for jointing a rubber pad (21) arranged in a sliding chute (910) of the solid joint seat (91); the rubber pad (21) comprises an elastic connection clamping part (211) and an elastic connection stretching movement part (212), and the elastic connection clamping part (211) is positioned on the two sides of the sliding connection foot piece (922) and is used for clamping and fixing the sliding connection foot piece (922); and the elastic connection stretching movement part (212) is positioned on the bottom side of the sliding connection foot piece (922) and is used for allowing adjusting the vertical position of the sliding connection foot piece (922).

The invention discloses a rapid installation method for a large cone steel structure in a narrow space. According to the technical scheme, when installation operation is carried out, firstly, a target cone steel structure is divided into a bottom section, a positioning and supporting section, a ring beam section and a top section according to the installation sequence from bottom to top, and then the positioning and supporting section, the ring beam section, the top section and the bottom section are sequentially installed at the designated positions. Due to the adoption of segmented assembly, not only is the assembly efficiency improved, but also the problems of high danger coefficient, inconvenience and limited field of hoisting which adopts integral assembly and then is mounted in the prior art are solved. In addition, due to the fact that the positioning supporting section with the installation position in the middle is firstly installed, and then the other sections are installed from the two end faces of the positioning supporting section, installation can be conducted without waiting for all the components to be in order, line production is formed, the large cone steel structure can be directly installed after arriving at the site, and the installation efficiency is improved.

The invention discloses an irradiation head moving device of a millimeter wave treatment couch body, which comprises a strip-shaped rail body and an annular lamp holder used for installing an irradiation head of a millimeter wave treatment couch body, two rod bodies are connected to the annular lamp holder in a sliding manner, and the other ends, far away from the annular lamp holder, of the two rod bodies are installed on the strip-shaped rail body through a walking driving structure. The two rod bodies are located in the horizontal plane where the strip-shaped rail bodies are located, and the walking driving structures are used for driving the ends, away from the annular lamp holder, of the rod bodies to move along the strip-shaped rail bodies. The moving area of the millimeter wave irradiation head on the annular lamp holder is constructed through the strip-shaped rail body capable of being installed on the edge of the bed body and the two rod bodies in the horizontal plane where the strip-shaped rail body is located, and automatic position adjustment of the irradiation head of an existing millimeter wave treatment bed body is achieved; and the irradiation head can be automatically positioned at multiple treatment positions, and space limitation of a multi-joint rod body structure of an irradiation head of an existing millimeter wave treatment instrument is avoided.