1001 results about "Open type" patented technology

An embodiment multi-stage open-type storage compartment for a vehicle includes a housing disposed inside the vehicle, an accommodation space defined within the housing, wherein the accommodation space is configured to accommodate an article, an inner cover rotatably disposed in the housing, the inner cover being configured to open and close a front surface of the housing, a guide slot disposed in the housing, the guide slot including a plurality of sections arranged as portions, respectively, of circles having different radii and centered around a rotational center of the inner cover, the plurality of sections being connected to each other, and a control lever rotatably disposed on a lateral surface of the inner cover, wherein the guide slot is configured to guide a movement of the control lever.

The invention relates to a composite interactive water-rich stratum efficient grooving ultra-deep underground diaphragm wall and a construction method. The construction method comprises the following steps of cement mixing pile groove wall reinforcement, guide wall foundation steel pipe pile built-in, guide wall novel template system installation, soft soil layer grab bucket grooving, karst cave drilling and grouting, rotary digging drill rock breaking and karst cave backfilling and double-wheel milling groove milling. The method has the beneficial effects that the groove wall is reinforced by the cement mixing piles, so that the groove wall is prevented from collapsing; the assembled drainage device is adopted, so that the construction efficiency is improved; the steel pipe piles are connected with the guide wall, so that the stability of the guide wall is improved; the steel plate groove is used as a guide wall template, so that the template turnover rate is improved; the open type steel box is placed on the groove opening, so that the risk of collapse of the groove wall is reduced; gaps and holes are blocked through drilling and grouting, then guide holes are rotationally excavated, and the karst cave is backfilled with plain concrete, so that the construction problem of grooving at the karst cave is solved; through the cooperation of the steel casing hoisting and positioning device, the construction efficiency of the rotary excavating guide hole is improved.

The invention relates to a heat protection structure of a dredging coupling semi-open type dissipation structure, which belongs to the technical field of heat protection of high-speed aircrafts and comprises a dredging structure shell, a dredging structure capillary core body, a dredging structure working medium, a semi-open type dissipation structure, a semi-open type dissipation working medium, a semi-open type dissipation structure exhaust pipe and a semi-open type dissipation structure control switch. Aiming at a local high-heating part of a hypersonic aircraft, on the basis of semi-active dredging type uniform-temperature heat protection, phase change heat absorption and discharge heat dissipation of an active dissipation working medium are combined, and heat absorption and dissipation ways are increased, so that the total heat amount is effectively reduced while the internal heat distribution of the structure is optimized, and the heat dissipation efficiency is improved. Internal heat control and management of the structure are realized through coupling of dredging semi-active heat protection and active dissipation, the problem of non-ablative heat protection in an extreme environment is solved, and a feasible heat protection technical approach is provided for performance improvement of high-speed aircrafts in the future.

An open-type TBM for tunnel expanding excavation is used for executing expanding excavation operation of an original tunnel with the cross section in a city gate shape, a front shield protection plate and a middle shield protection plate are arranged between a front shield and a middle shield of the open-type TBM, the front portion of the front shield protection plate is fixedly connected with the rear portion of the front shield, the front shield protection plate is located on the outer side of the middle shield protection plate, and the middle shield protection plate is located on the outer side of the middle shield protection plate. The rear portion of the front shield protection plate and the front portion of the middle shield protection plate are partially overlapped, and the rear portion of the middle shield protection plate is fixedly connected with the front portion of the middle shield. By means of the design, it can be avoided that slag materials are exposed behind a TBM host and slide to the bottom area of a tunnel to be accumulated under the combined action of water flow in the tunnel and mechanical disturbance, and then continuous tunneling of the TBM is affected.

The application discloses a multi-column packaging machine convenient to clean, which comprises a feeding assembly, a former body and a longitudinal sealing assembly. A material guiding recess is arranged at the bottom of a material bin. The accumulated powder material is gathered and guided to flow to a first discharge hole through the material guiding recess. The former body is arranged below the feeding assembly. A central through hole is arranged on the front side of the former body. A longitudinal sealing accommodating channel is movably formed between the surface in the third accommodating recess and the back surface of the longitudinal sealing movable seat. The longitudinal sealing accommodating channel is in communication with the central through hole. One end of a filling pipe is fixedly connected with the first discharge hole, and the other end of the filling pipe is sequentially arranged in the central through hole and the longitudinal sealing accommodating channel. Compared with the prior art, the application has the beneficial effects that the flowability of the powder material in the material bin is effectively improved through the arrangement of the arc-shaped curved surface, the central through hole is designed in an open type, and the detachable connection mode of the longitudinal sealing assembly is adopted, so that the disassembly direction of the longitudinal translation of the filling pipe is realized.

The utility model designs a semi-open impeller top clearance adjusting structure of a horizontal sewage pump, which comprises a pump cover, an impeller, a pump body and a front cover, and is characterized in that the front cover is fixed on the pump body by a screw which is positioned in a pump body mounting hole and is sleeved in an adjusting bolt, and the screw is screwed in a front cover screw hole. Compared with the prior art, the novel structure has the advantages that the front cover is additionally arranged in the pump body, through optimization of the pump body structure, the adjusting bolt is introduced to push the front cover to adjust the blade top clearance of the semi-open type impeller towards the side of the semi-open type impeller in a micro distance mode, and the current situation that the pump efficiency is reduced after the pump runs for a long time is solved. Meanwhile, two O-shaped ring grooves are formed in the front cover and used for containing O-shaped rings, and liquid leakage is prevented.

The invention relates to the technical field of TBM auxiliary supporting shoes, and discloses an open type TBM auxiliary supporting shoe device which comprises a main beam, first hydraulic rods are symmetrically and fixedly connected to the outer wall of one side of the main beam, main supporting shoes are fixedly connected to the outer ends of the two first hydraulic rods, and first side face supporting rods are symmetrically hinged to the outer walls of the two main supporting shoes; the other ends of the first side face supporting rods are hinged to the outer wall of the main beam. And an auxiliary supporting mechanism is further included, the auxiliary supporting mechanism comprises two sets of second hydraulic rods, the two sets of second hydraulic rods are fixedly connected to the outer wall of the other side of the main beam, and the second hydraulic rods and the first hydraulic rods are horizontally arranged. Under the counter-acting force of the supporting blocks in the auxiliary supporting shoe mechanism and the interior of a tunnel, the multiple sets of inserting rods can be synchronously driven to rotationally drill the inner wall of the tunnel, so that the tunnel can be better inserted into the inner wall of the tunnel, the friction force between the auxiliary supporting shoe mechanism and the inner wall of the tunnel is conveniently improved, and the overall stability of equipment is guaranteed; and stable support is provided for the propelling mechanism.

The invention provides an open type separable modularized mining transportation box body and a using method thereof, relates to the field of mine material transportation, and is designed for solving the problem that a traditional mine car cannot meet the transportation requirements of different types of materials. Comprising a walking chassis, a bearing box body and a locking structure, and the locking structure is provided with an unlocking position enabling the bearing box body to be separated from the walking chassis and a locking position enabling the bearing box body to be combined with the walking chassis; the bearing box body comprises a rectangular bottom plate, four stand columns, two sets of side plate assemblies and two sets of end plate assemblies, and the four stand columns are fixedly arranged at the four corner point positions of the rectangular bottom plate correspondingly. The two groups of side plate assemblies are respectively distributed on two long edges of the rectangular bottom plate, the side plate assemblies are movably arranged, and the side plate assemblies are provided with exposed positions and hidden positions; the two end plate assemblies are distributed on the two short edges of the rectangular bottom plate correspondingly, the end plate assemblies are movably arranged, and each end plate assembly has an unfolding position and a folding position. The conveying requirements of different kinds of materials can be met.

The invention discloses a hydraulic control system for a sliding gate of a tundish of a continuous casting machine, which relates to the technical field of hydraulic control systems and comprises an energy accumulator safety system and two oil cylinder control systems which are connected in parallel between an oil inlet main path and an oil return main path, the oil inlet main path is connected with an oil pump through a one-way valve; the energy accumulator safety system comprises an energy accumulator, a normally-open type high-pressure ball valve and an energy accumulator safety valve. The oil cylinder control oil way comprises a two-position four-way electromagnetic directional valve, a stacked type double-one-way throttle valve, a stacked type hydraulic control one-way valve, a first normally-closed type two-position two-way electromagnetic directional valve, a second normally-closed type two-position two-way electromagnetic directional valve and an oil cylinder. The hydraulic cylinder of the sliding nozzle can be stably controlled, and the energy accumulator safety system is arranged, so that the sliding nozzle can still be opened and closed for two to three times when an oil pump pauses in a sudden power failure state, and molten steel is prevented from being cooled and solidified.

The utility model discloses a double-open type coded lock, which comprises a coded lock and a lock cylinder, the coded lock comprises a code plate, a movable plate and a turn button arranged on the code plate, the lock cylinder is arranged on the code plate, the double-open type coded lock is characterized by further comprising a straight tongue plate, an unlocking limiting plate and a shifting button arranged on the lock cylinder, a spring bolt is arranged at the end part of the straight tongue plate, and the movable plate is arranged on the lock cylinder. The end of the unlocking limiting plate is connected with the movable plate, after the rotary button unlocks, the shifting button can rotate along with rotation of the key so as to jack up the unlocking limiting plate to drive the straight tongue plate to move to achieve unlocking and locking, and the movable plate can be pushed to move while the unlocking limiting plate moves.

The invention discloses a low-noise open type air suspension compressor integrated with a distribution valve, and relates to the technical field of compressors, the low-noise open type air suspension compressor comprises a shell, and a motor assembly, a compression cavity, the distribution valve, an air inlet and an air outlet are arranged in the shell; the output end of the motor assembly is connected with a compression mechanism, and the compression mechanism is located in the compression cavity. A renewable drying barrel is installed on the shell, and the air inlet is communicated with the compression cavity. Modular design is adopted in the compressor, a distribution valve, a motor assembly, a compression mechanism, a renewable drying barrel, an exhaust mechanical valve and an exhaust electromagnetic valve are integrated, the arrangement space and difficulty of an ASU chassis are reduced, and meanwhile the effects of space reduction and mass reduction are achieved; in order to solve the noise problem, the noise is reduced by additionally arranging the air inlet silencer and the exhaust silencer, and meanwhile the airflow flowing noise can be further reduced in a double-channel circulation mode.

The utility model relates to the technical field of diffusion welding, in particular to an open type diffusion welding device with size adaptability, which comprises a device base, two movable plates are arranged on the upper surface of the device base, and adjusting motors are fixed at two ends of the device base through bolts. A power output shaft of the adjusting motor penetrates through the device base to be connected with a lead screw, the lead screw is in threaded connection with the movable plate, and a guide rod fixedly connected with the device base penetrates through the interior of the movable plate. According to the automatic welding device, the clamping plate is driven by the clamping electric cylinder on the feeding piece to vertically move, so that materials are clamped and fixed, the clamping plate is prevented from deviating during movement, the anti-skid convex points on the clamping plate can play an anti-skid role, the situation that the welding quality is affected due to displacement of the materials is avoided, and the two adjusting motors are started, so that the welding quality is guaranteed. The two movable plates drive the two lead screws to rotate respectively, and the two movable plates move relatively, so that the two feeding pieces are driven to get close to each other, and automatic feeding is achieved.

The invention provides an open type three-dimensional reconstruction method. The three-dimensional reconstruction method comprises the following steps: collecting a multi-view image of a target by using a visual module; obtaining a dense point cloud based on a three-dimensional reconstruction algorithm; and post-processing the dense point cloud to obtain a dense target point cloud. According to the method, dense target point clouds are screened through original open type three-dimensional reconstruction and AI post-processing, so that the data volume of subsequent processing and analysis is reduced, the data processing efficiency is effectively improved, and the three-dimensional reconstruction speed on a conventional computing power platform is greatly improved. In addition, the invention also provides an automatic depth positioning method, equipment and a robot.

The invention relates to the technical field of forge piece detection, and discloses a forge piece finished product size detection device which comprises a base, a detection table and a height adjusting frame are fixedly installed on the base, an open type containing groove is formed in the bottom of the detection table, a plurality of detection blocks which are circumferentially and evenly distributed are slidably arranged on the upper portion of the detection table, and limiting columns are arranged at the bottoms of the detection blocks. A positioning detection mechanism for driving the limiting columns to synchronously move back and forth towards the center of the detection table is arranged in the placement groove, a mounting groove is reserved in the detection block, a sleeve is arranged in the mounting groove, and a flaw detection unit is arranged in the sleeve. Compared with the prior art, the device has the beneficial effects that size deviation detection can be carried out on different casting parts for multiple times; the positioning detection mechanism can be used for synchronously measuring the outer walls of a plurality of circular pipe castings, and can be matched with the flaw measuring unit to measure the outer diameter sizes and size deviation values of a plurality of parts; and the flaw detecting unit can quickly obtain the dimensional deviation value among a plurality of parts of the round pipe casting by simply rotating the knob.

The invention discloses a half-open type thrust magnetic levitation bearing. The bearing comprises a first magnetic ring, a second magnetic ring and a third magnetic ring, wherein the first magnetic ring, the second magnetic ring and the third magnetic ring are arranged in annular and laminating manners so as to form an annular magnetic pole; the magnetic pole of each of the magnetic rings is different from that of the adjacent magnetic ring; a first winding and a second winding of the annular magnetic pole are wound according to a predetermined half-open way, the lower part of the middle magnetic pole is recessed inwards so as to generate a winding space which meets predetermined conditions; and the magnetic pole arranged at the upper end extends, and thus, a complete circle of magnetic pole is formed after splicing. Based on the bearing, continuity and consistency of magnetic field strength of the magnetic poles of the half-opened axial thrust bearing can be basically reserved, and the half-open type thrust magnetic levitation bearing can be applied to high-speed rotation machines; and moreover, a more flexible mounting way can be obtained, particularly to large-size rotation machines.

The invention relates to the technical field of coal mine drilling, and provides an open type hydraulic clamping device which comprises a main body structure with stepped holes formed in the two sides, piston rods are slidably connected into the stepped holes, slips are detachably connected to the small ends of the piston rods, and sealing cavities are formed in the two sides of the large ends of the piston rods. The side, away from the slip, of the sealing cavity is communicated with an oil inlet pipe of a hydraulic system, the other side of the sealing cavity is communicated with a guide-in pipe, the tail end of the guide-in pipe is communicated with an oil return pipe and an overflow pipe of the hydraulic system through a three-way valve, the overflow pipe is communicated with an overflow hole in the side portion of the main body structure, and the large end of the piston rod can block or open the overflow hole. And hydraulic locks are arranged on the oil inlet pipe and the ingress pipe. When power is cut off suddenly, the hydraulic locks on the oil inlet pipe and the guide-in pipe can be locked rapidly, so that the pressure maintaining effect on the two sealing cavities can be achieved, the two slips can maintain the clamping force of a drilling tool, the drilling tool is prevented from sliding off, and the safety of underground equipment or personnel is guaranteed.

The utility model relates to a vibration reduction technology in the field of vibration control of building structures, in particular to an open type modularized tuned mass damping system. The device comprises an embedded part, a frame, a mass block, a supporting beam, an adjusting spring, a damper, a lug plate, a friction plate, a pin shaft and a nut, the frame provided with the mass block serves as a mass module, the supporting beam and the adjusting spring jointly form a rigidity module, and a friction pair composed of the friction plate and the lug plate and the damper jointly form a damping module. When the floor slab generates vertical vibration due to external excitation, the nearby structural beams vibrate synchronously. The supporting beam provided with the mass module is connected to the structural beam through the friction damping pin shaft assembly. The structural beam vibrates to drive the mass module, and the supporting beam and the adjusting spring have the same vibration frequency and opposite directions. The damper between the mass module and the floor is enlarged in deformation due to reverse vibration, energy consumption is enhanced, and therefore vibration of the floor is relieved.

The invention discloses an open type TBM rock burst jamming risk early warning method. The method comprises the steps that the running state of a TBM is divided into a normal tunneling state, a jamming early warning state and a jamming state; screening out key operation parameters; obtaining a data set; the data set comprises input data and output data; dividing the data set into a training set and a test set; preprocessing the training set to obtain a preprocessed training set; a weight adaptive algorithm is adopted, the preprocessed training set is used for training, and a risk early warning model is obtained; and the risk early warning model is utilized to perform early warning on the open-type TBM rockburst jamming risk. According to the method, a transition state between a normal tunneling state and a jamming state of the TBM is defined as a jamming early warning state, and a jamming risk early warning problem is converted into a jamming early warning state recognition problem; accurate early warning of the open-type TBM rockburst jamming risk is realized by using the running data of the TBM, additional deployment of a monitoring sensor is not needed, the reliability is high, and the method has important academic and engineering values.

The invention discloses a self-adaptive adjusting system and method for the transverse position of an automobile safety belt, and belongs to the technical field of automobiles. The system comprises a transverse position adjusting mechanism which comprises a sliding rail arranged on a seat backrest and an adjusting executing mechanism moving along the sliding rail; the safety belt braid is fixed through an open type guide ring arranged on the adjusting executing mechanism. The multi-modal sensing module is used for collecting multi-modal shape data and dynamic posture data of the passenger; and the controller is electrically connected with the multi-mode sensing module, the transverse position adjusting mechanism and the vehicle control unit and used for determining a static optimal transverse position according to the multi-mode body shape data of the passenger, predicting the posture of the passenger according to the dynamic posture data and the vehicle driving state, generating a dynamic adjusting instruction and driving the adjusting executing mechanism to transversely move along the sliding rail. The body shape of the passenger is predicted through multi-modal feature fusion, the posture change of the passenger is actively pre-judged, the transverse position of the safety belt is adaptively adjusted in time, and the condition of shoulder sliding or neck tightening is effectively avoided.

The invention provides an open type special-shaped aluminum honeycomb board cornice connecting structure which is used for connecting a keel and a honeycomb board assembly and comprises a base, an adapting piece, a gasket and a hanging piece, the base is fixed to the keel, the base is provided with an arch-shaped protrusion, the adapting piece comprises an arch-shaped connecting part and a hanging piece connecting part, and the adapting piece is connected with the hanging piece connecting part. The base is provided with an arch-shaped protrusion, an arch-shaped connecting part of the adapting piece is connected with the arch-shaped protrusion of the base through the gasket, the adapting piece can rotate in the circumferential direction of the arch-shaped protrusion and can move in the axial direction of the arch-shaped protrusion, the hanging piece connecting part is connected with the cellular board assembly through the hanging piece, and the distance between the hanging piece and the base is adjustable. By means of the connecting structure, translation adjustment in three directions and rotation around the keel can be carried out on the cellular board, alignment, installation and disassembly of the cellular board are facilitated, the installation precision is effectively guaranteed, and the maintenance cost of later disassembly, replacement and the like is reduced.

The invention belongs to the field of refrigerated carriages, and particularly relates to a brand-new open type foaming process refrigerated carriage and carriage body plate structure and a manufacturing process thereof.The refrigerated carriage body is composed of a bottom plate, side plates, a top plate and a front plate, the side plates are arranged on the two sides of the top of the bottom plate, the top plate is arranged over the bottom plate, and the top plate is located at the tops of the side plates; according to the invention, a secondary pouring foaming refrigeration compartment body splicing process is adopted, open foaming process cold-bridge-free structural plates are adopted in a plate structure, and the interior and the exterior of the refrigeration compartment body are spliced in a manner of riveting aluminum alloy sections of a special two-sealant groove structure; and the side plates are arranged on the two sides of the bottom of the top plate, and the front plate is arranged at the front end of a frame body formed by the bottom plate, the side plates and the top plate. Secondary high-pressure pouring foaming is carried out in a closed cavity formed at the connecting positions of all the plates, polyurethane foam layers of all the plates of the compartment body form a closed-loop structure, the overall air tightness and heat preservation performance of the compartment body are greatly improved, and the heat conductivity coefficient of the whole compartment is 0.03 or below.

The invention discloses an online in-situ detection and analysis system for a wide-temperature-range lubricating material wear failure mechanism, which mainly comprises a vacuum high-temperature multi-environment friction and wear test part and an in-situ Raman detection part, and has an in-situ analysis equipment combination function and a vacuum, high-temperature and different-atmosphere environment controllable function. The system relates to three core function units of high vacuum, high temperature and in-situ Raman, and the difficulty lies in the compatibility of a high-temperature system and a high-vacuum system, the introduction of in-situ Raman and the compatibility of high vacuum and high temperature. According to the invention, three structural designs are adopted to overcome the difficulty: 1, the frictional wear experiment unit adopts a mechanical loading structural design; secondly, an open type design is adopted, a groove is formed in the upper part of a vacuum chamber, and a detection optical fiber of a Raman detection unit extends into the chamber; and thirdly, a circulating water cooling system is introduced, and a cooling water pipe is connected below the heating unit to cool the outer wall of the heating tank body.

1. Name of the Design Product: Headphones (Open Type). 2. Use of the Design Product: For playing audio. 3. Design Key Points of the Design Product: Lies in the overall shape of the product. 4. Picture or Photograph that Best Illustrates the Design Key Points: Perspective View of Design 1. 5. Design 1 is designated as the basic design.

The utility model discloses a normally open type two-position two-way fluid valve which comprises a valve body, a valve cover is arranged on the valve body, a pilot head assembly is arranged on the valve cover, the valve body is provided with an inlet, an outlet and a valve port, a diaphragm assembly is arranged between the valve cover and the valve body, the position of the diaphragm assembly corresponds to that of the valve port, and an upper cavity is formed between the diaphragm assembly and the valve cover. The membrane assembly is provided with a channel A and a channel B. The pilot head assembly is used for opening or blocking the channel B. The pilot head assembly is provided with a locking assembly which comprises a locking rod, an adjusting sleeve and a connecting base, one end of the connecting base is fixedly connected with the pilot head assembly, the other end of the connecting base is connected with a flange, and the connecting base is provided with a plurality of conical holes. Each conical hole is provided with a steel ball, the adjusting sleeve is movably arranged on the connecting base in a sleeved mode, an elastic reset piece is arranged between the adjusting sleeve and the connecting base, the locking rod is movably arranged in the connecting base, the locking rod is provided with a protruding part and a locking assembly, and therefore the fluid valve can be kept in a normally-closed state and is convenient to overhaul.

The utility model relates to the technical field of valves, in particular to a valve seat structure of an open type slag locking valve capable of being purged, which comprises a valve seat body, a disc spring used for abutting against the valve seat body and a supporting seat abutting against one side, away from the valve seat body, of the disc spring, a disc spring cavity used for installing the disc spring is formed between the supporting seat and the valve seat body, and the disc spring cavity is communicated with a valve cavity. The supporting seat is provided with a soot blowing groove; the open type disc spring cavity is adopted, the characteristic of medium circulation is utilized, accumulated impurities can be effectively purged, slag-bonding is prevented from influencing action of the valve, compared with a conventional column spring structure, the phenomenon of impurity blockage can be completely eliminated, the problem of crawling jamming caused by elasticity failure due to spring blockage in the using process of the valve is effectively solved, and the service life of the valve is prolonged. And redundant sealing structures are not needed, the overall structure is simple, maintenance and replacement are convenient and fast, in addition, media are guided through the soot blowing grooves in the supporting parts while the supporting parts are used for supporting the disc springs, and the impurity blowing effect is improved.

The invention relates to the technical field of steel backing stamping, and provides an open type inclinable punching machine and method for steel backing stamping, the open type inclinable punching machine for steel backing stamping comprises a punching machine frame, a stamping assembly, a stamping machine frame, a displacement assembly, a braking assembly, a mounting groove, a lifting seat, a position adjusting assembly and a fixing assembly, and the punching machine frame is provided with a material loading area and a stamping area; the material carrying area is located on the lower portion of the punching area, the punching assembly is installed in the punching area, the punching rack is fixedly installed in the punching area, the displacement assembly is installed on the punching rack, the brake assembly is installed on the punching rack, an installation groove is formed in the material carrying area, a lifting base is installed on the installation groove in a sliding mode, and the position adjusting assembly is installed on the punching rack. By means of the technical scheme, the problems that in the prior art, due to the fact that the distance between the upper die and the lower die is unreasonably adjusted, accurate matching between the upper die and the lower die is difficult, and a workpiece deforms are solved.

A latch mechanism for a storable cover plate includes: a carriage frame mechanism configured to be mounted on a boxcar, the carriage frame mechanism enclosing an open large cavity; the sealing cover system is assembled on the carriage frame mechanism and used for shielding the open type large cavity, and the sealing cover system at least has an unfolding position state and a storage position state relative to the carriage frame mechanism; and the latch mechanism is configured on the sealing cover frame mechanism, and the latch mechanism at least has an unlocking state and a locking state, so that the sealing cover frame mechanism is in releasable joint with the carriage frame mechanism through the latch mechanism. According to the latch mechanism, the integrated lock tongue is adopted, the structure and the function are integrated, an existing lock tongue body and screw rod combination scheme is replaced, a spring is directly installed in a lock tongue cavity, and a bent structure at the tail end of a lock shell is omitted. Therefore, the number of parts is smaller, production and assembly are simpler and more practical, and the device is more stable and reliable after being used for a long time.

The invention discloses an open-type TBM stepping device and a rapid assembly stepping method thereof, the stepping device comprises a stepping track and a pushing device, and the stepping track is used for supporting stepping movement of a TBM host; the stepping track comprises a plurality of stepping bases, and the stepping bases are sequentially connected end to end to form the stepping track of an integrated structure. The pushing device is fixedly arranged on the top of the stepping base and used for controlling the TBM host to run on the stepping base. In the assembling process, working condition switching from assembling to tunneling is completed through replacement of the rails and the wheels. According to the design, TBM equipment installation and civil engineering cavern construction operation can be synchronously carried out, the application range is effectively expanded, the front shield and the cutter head can be continuously kept in a head-up state in the whole stepping process, and the safety of TBM stepping operation is effectively improved.

The invention provides a simple building pipeline gradient measuring device and a using method thereof.The device comprises a left pipe clamp and a right pipe clamp which are installed on a pipeline in a sleeving mode, suspenders are installed on the lower portions of the pipe clamps, a horizontal rod is connected to the lower portion of the left suspender, the other end of the horizontal rod is connected with the right suspender, and fixing rods are installed between the two ends of the horizontal rod and the suspenders on the two sides; the fixing device is used for fixing the horizontal rod 5 to 90 degrees; a spring is mounted between the right pipe clamp and the horizontal rod, a level bubble level is mounted in the middle of the horizontal rod, and a telescopic adjusting device is mounted at the rear of the horizontal rod; a long-strip-shaped sliding groove is formed in the middle of the lifting rod on the right side and marked with scales and gradient readings. Due to the fact that the pipe clamp is of an open type, pipelines with different pipe diameters can be fixed through the fastening bolts, the gradient of the pipelines can be measured, the pipeline gradient measuring device is suitable for measuring the gradient of the pipelines in the pipeline installation process and after installation is completed, and carrying, dismounting and using are convenient and flexible. After adjustment is completed, the gradient can be read according to the arrow indication on the horizontal rod, and the measurement precision and the measurement efficiency are improved.