32results about How to "Convenient for field construction" patented technology

The invention discloses a sealed sampling bottle. The sampling bottle which comprises a bottle body (1) and a bottle cover (2) is characterized in that there are a threaded connection and a seal between the bottle body (1) and the bottle cover (2); the bottle cover (2) is provided with sampling ports (4) which are respectively provided with a sealing cover (3), and each of the sampling ports (4) has a threaded connection with one sealing cover (3); and the sealing cover (3) of each of the sampling ports (4) is provided with a through hole, and a sealing gasket is arranged between one sampling port (4) and one sealing cover (3) to seal. By adopting the sampling bottle of the invention to preserve gases, liquids and solids, the sealing effect is good, so the adoption of a unified preservation mode of different detection projects of a same sample is realized, intermediate links from an acquisition phase to a detection phase of the sample are shortened, and the reliability and the validity of analysis data are practically improved.

The invention discloses a high-voltage excitation constant-current power supply system which comprises an excitation variable voltage generator, a rectifying unit, a current sensor, an analog-digital converter, an excitation regulator and a high-power load, wherein the excitation variable voltage generator outputs a three-phase alternating voltage of 0-1000V under the control of the excitation regulator; the rectifying unit changes the alternating voltage into a direct current voltage until the high-power load is loaded; the electric current sensor carries out insulation detection on supply current; the analog-digital converter converts analog signals into digital signals; and the excitation regulator controls the output voltage of the excitation variable voltage generator, thus the supply current of the whole system is maintained at the set current value. According to the invention, the supply voltage can be regulated continuously within the large range of 0-1000V DC (direct current), and can adapt to the constant current power supply of various earthing conditions, and the system has the advantages of high efficiency, light weight and high reliability, and can be used for overcoming the defects of the traditional constant current technical scheme.

The invention relates to a novel combination arc shell structure consisting of a ripple arc plate, a steel bar truss and concrete, belonging to the technical field of constructional engineering. The arc shell structure comprises the ripple arc plate, the steel bar truss and the concrete. The steel bar truss is composed of upper chord longitudinal bars, lower chord longitudinal bars, web bars, web members and transverse steel bars; the ripple arc plates are assembled into arc shells of any length by ripple arc plate undercut; welding or colligation can be carried out on the transverse steel bars and a steel bar truss arch; and the transverse steel bars and the steel bar truss arch can be connected at the occlusion part of the ripple arc plate by spot welding; the ripple arc plate and the steel bar truss arch form an arc die plate system, and then concrete is poured; after the concrete is solidified, the combination arc shell structure consisting of the ripple arc plate, the steel bar truss and the concrete is obtained. The combination arc shell structure of the invention has good overall performance and high carrying capacity, facilitates outdoor construction and saves cost; in addition, the structure has very good overall resistance capability and the capacity to bear partial strike, therefore the structure is an excellent protective works structure.

The invention discloses a master station of a geophysical exploration data acquisition device. The master station comprises a filed programmable gate array, a double data rate (DDR) data cache interface, an explosion machine interface, a lower-level system interface module and a data uploading interface module. The DDR data cache interface, the explosion machine interface, the lower-level system interface unit and the data uploading interface module are connected with the filed programmable gate array. The master station is a hardware implementation mode and is high in instantaneity, compact in structure and small in area, modularization can be carried out on internal driving logic of the DDR data cache interface, expansibility is high, the DDR data cache interface and the data uploading interface module can both keep unchanged basically for different seismic prospecting devices, reuse of the master station can be carried out by changing the lower-level system interface module, flexibility is high, the whole master station does not need supporting through an operating system, and complexity is relatively low.

The invention discloses a modularly spliced integrated network array antenna, which is formed by splicing and combining a plurality of independent array modules, wherein each array module comprises an antenna unit, an integrated network substrate and a radio frequency connector, each integrated network substrate is provided with a feed network circuit and a calibration network circuit, the antenna units are installed on the upper surface of the integrated network substrates, and the radio frequency connectors are installed on the lower surfaces of the integrated network substrates. The integrated network array antenna is formed by freely splicing and combining the plurality of array modules, the antenna array modular design and splicing reduce the antenna development difficulty and cost, external field construction and application are facilitated, the networking speed can be effectively improved, and rapid networking is realized; and by adopting the structure design, the antenna structure is simplified, the profile and the weight of the antenna are reduced, the design cost of the antenna is greatly reduced under the condition that the function and the index of the antenna are not influenced, and the requirement of efficient and large-scale networking of a 5G communication system is met.

A booster for tightening or releasing a screw bolt or nut is composed of a shaft sleeve, a primary drive shaft in said shaft sleeve, a crank fixed to said primary drive shaft, a clutch block between primary drive shaft and upper drive gear, two secondary drive shafts in primary supporting frame, upper and lower drive gears of secondary drive shaft, the drive shaft of square-head sleeve tube, and the clutch block of secondary drive shaft.

The invention relates to an underwater seismic detector string, which is provided with a shell consisting of a lower protective shell and an upper cover, a plug, detector cassette mechanisms, a transmission cable, a tail cone and a steel rope; the detector cassette mechanisms are fixed in the shell; the plug is connected with the upper cover by threads, wherein the shell is provided with cable through holes; a plurality of the detector cassette mechanisms are assembled in the shell in a sealing mode according to a serial and parallel structure; the detector cassette mechanisms are arranged in grooves of the lower protective shell respectively, and are fixed by tablets and fastening screws; the detector cassette mechanisms are sequentially and serially connected by conducting wires, and are connected with the transmission cable by a wiring terminal; and the other end of the transmission cable passes through the upper cover and the plug, and are output. The underwater seismic detector string has compact and reasonable structure, reliable seal, easy assembly, small volume, light weight, convenient mounting and fixation, and excellent waterproof and pressure resisting performances, and can be simultaneously used in various service environments of land, shallow fords of rivers, lakes and seas and offshore waters and other filed construction sites.

The invention discloses an active data transmission system for a seismic exploration system. The seismic exploration system is provided with multiple collection nodes connected to a transmission line;the active data transmission system is used for supplying power for various collection nodes of the seismic exploration system, and transmitting data among various nodes; the active transmission system comprises a power supply end and a power receiving end; the power supply end is configured on the former collection node, and the power receiving end is configured on the next collection node, andthe power supply end and the power receiving end have the power module. The active data transmission system for the seismic exploration system performs multiplexing transmission by adopting a way of coupling the power supply and the data, the weight of the data transmission line and the cable core number are reduced; the cable of the seismic exploration system can be saved after the system is saved, the manpower and the material resource are saved, and the system brings great convenience for the field construction.

The invention discloses a geophysical surveying data acquisition and transmission system, which comprises a main control station, N cross stations and N*M acquisition stations. The main control station is sequentially connected with the N cross stations. The N cross stations are connected with one another via cross lines. M acquisition stations are connected at the two sides of each cross station via jug lines. According to the technical scheme of the invention, the acquisition stations are symmetrically arranged and are not directivity-sensitive. In this way, the field construction is greatly facilitated and the field operation efficiency is improved. The cross stations are symmetrically arranged all around the system, so that the cross stations can be connected with one another, the main control station or the acquisition stations through being freely rotated at 90 degrees without the need of differentiating connection directions. As a result, the field construction is facilitated and the on-site field operation efficiency is improved. The main control station can be connected with the cross stations and can also be directly connected with the acquisition stations. Based on the LVDS high-speed differential power transmission mode, the main control station is in communication with the cross stations/acquisition stations. Therefore, the defect that the optical fiber communications is not easy in maintenance can be overcome.

The invention relates to a power-supply work station for a seismic prospecting instrument and a working method thereof. Compared with the prior art, the defect that a power-supply work station cannot integrate data acquiring, buffering, forwarding and power supplying is overcome. The power-supply work station comprises an FPGA (Field Programmable Gate Array) chip, a local power supply connected with the FPGA chip, a master SDRAM (Synchronous Dynamic Random Access Memory), a slavery SDRAM, a local data acquiring chip, a power supply management module and a network transformer, wherein the local data acquiring chip is connected with an acquisition driving module of the FPGA chip, the master SDRAM and the slavery SDRAM are respectively connected with an SDRAM ping-pong control module of the FPGA chip, and the network transformer is connected with a power supply control module of the FPGA chip via the power supply management module. According to the invention, data acquiring, buffering, forwarding and power supplying functions are integrated, a ping-pong buffering work mode is employed, and the work station and method are helpful for realization of large-scale seismic prospecting instrument systems, especially systems without limitations of channels.

The invention discloses a special-shaped pipe cavity high-voltage cable laying device and method, and belongs to the technical field of cable construction. A specially-arranged clamping mechanism and a pipeline matched with the clamping mechanism are adopted, and the clamping mechanism can drive a power cable to be bent in the pipeline when running along the pipeline, so that the problem that an existing power cable is inconvenient to bend can be solved, and the laying time and cost are reduced. The device comprises a pipeline and a clamping mechanism, wherein the clamping mechanism is arranged in the pipeline, and the clamping mechanism can make contact with the inner wall of the pipeline; a handle is arranged at the end of the pipeline and penetrates through the pipe wall of the pipeline, the part, which is located in the pipe wall, of the handle is connected with a traction cable, and the traction cable is connected with the clamping mechanism; and the pipeline is provided with a bent section, the inner side pipe wall of the bent section is in an arc shape, and the traction cable can be attached to the inner side pipe wall of the bent section to slide.

The invention discloses an electric pole composite stay wire device which comprises a pull disc, a stay wire rod, a UT wire clamp, a steel wire stay wire and a hoop, after the pull disc is of an open disc-shaped structure, a slope plate can wrap and press soil on the slope plate towards the periphery in an open mode, the traction stress of the pull disc is increased, the pull disc is connected with the lower end of the stay wire rod through a locking plug-in, the UT wire clamp is arranged at the upper end of the stay wire rod, and the steel wire stay wire is arranged at the lower end of the stay wire rod. The UT wire clamp is connected with a hoop through a steel wire stay wire, and the hoop is used for being fixed on an electric pole. The application method comprises the following steps: firstly, determining the position of the pole stay wire and digging the stay wire pit according to requirements; one end of the anchor rod is inserted into the connecting base to be reliably connected and locked; the pull disc is placed at the bottom of the stay wire pit, the higher slope plate side is far away from the electric pole, and the opposite lower slope plate side is close to the electric pole; the stay wire rod and the steel stay wire are fixed; backfilling the stay wire pit with soil, and compacting; and a UT wire clamp is used for connecting and tensioning. The stability of the electric pole is guaranteed, construction is convenient and flexible, the labor intensity is reduced, the construction and storage cost is saved, and the working efficiency is improved.