609 results about "Connection design" patented technology

The invention relates to the technical field of ore distributing devices, in particular to an ore conveying and distributing device which comprises a main steel frame, an upper-layer sealing-tape machine arranged on one side of the main steel frame, a second-layer steel frame fixedly arranged in the main steel frame and a movable sealing-tape machine arranged above the second-layer steel frame and capable of moving transversely. A movable sealing-tape machine is arranged on one side of the main steel frame, a tail discharging mechanism is arranged at the tail end of the movable sealing-tape machine, a walking driving mechanism is arranged between the movable sealing-tape machine and the second-layer steel frame, a plurality of sets of storage bins are arranged on the other side of the main steel frame, and a middle hopper is fixedly arranged at the tail end of the upper-layer sealing-tape machine. According to the device, dynamic adjustment of a mineral aggregate conveying path is achieved through the synergistic effect of the movable sealing-tape machine and the walking driving mechanism, meanwhile, through the feeding connection design of the middle funnel and the movable sealing-tape machine and the cooperation of the discharging mechanism capable of transversely moving, the device can meet the loading requirements of different storage bins, and flexible point-to-point material distribution is achieved.

This disclosure proposes a vacuum circuit breaker, comprising a stationary conductive component and a moving conductive component. The moving conductive component is configured to adjustably move toward and contact the stationary conductive component to achieve the closing action of the vacuum circuit breaker. The solid-sealed pole also includes a buffer energy-absorbing mechanism, which includes a first movable member and a second movable member. The first movable member is located on the side of the stationary conductive component opposite to the moving conductive component. The second movable member is located on the side of the stationary conductive component opposite to the moving conductive component and is movably connected to the stationary conductive component. The second movable member is movably connected to the first movable member. The buffer energy-absorbing mechanism is used to absorb the impact energy generated when the stationary conductive component contacts the moving conductive component. Through the above design, this disclosure utilizes the movable connection design between the first movable member and the stationary conductive component and the movable connection design between the second movable member and the first movable member to construct a buffer structure with two degrees of freedom, thereby achieving a buffer function in the above two degrees of freedom.

The application provides a micro-precision angular contact ball bearing limit speed testing machine, which comprises a base and a motor, a ring block and a test shaft are arranged on the base, one end of the test shaft penetrates into the ring block to form a test station for installing a bearing to be tested, a first connecting part is arranged on the test shaft, the motor comprises a second connecting part on an output shaft, a plurality of first connecting holes and a plurality of second connecting holes are arranged on the first connecting part and the second connecting part respectively, and the first connecting holes and the second connecting holes can be connected by a connecting line to form a flexible connection between the first connecting part and the second connecting part. In view of the defects of the prior art, the micro-precision angular contact ball bearing limit speed testing machine provided by the application is designed to be flexibly connected and can avoid aggravating damage.

This utility model provides a pipe flaring fixture and flaring stamping equipment. The pipe flaring fixture includes a base, a fixture body with a clamping cavity, a feeding mechanism, and a unloading mechanism. The feeding mechanism includes a mounting base, a feeding drive, and a feeding top block located at the output end of the feeding drive. The feeding top block has a feeding ramp and a connecting end. The fixture body includes a lower fixture and an upper fixture. The lower fixture has an inlet ramp parallel to the feeding ramp and a clearance groove perpendicular to the clamping cavity. The unloading mechanism includes an unloading component installed on the connecting end of the feeding top block. By parallelly engaging the ramp of the feeding top block with the inlet ramp of the lower fixture, a progressive guide channel is formed, improving positioning accuracy and feeding efficiency. Simultaneously, the rigid connection design between the unloading mechanism and the feeding top block creates a mechanical linkage between the ejection action and the unloading process, allowing for automatic unloading upon completion of processing, reducing manual operation and improving feeding and unloading efficiency.

The application relates to the technical field of cutting equipment, and particularly discloses a positioning cutting device for grey cast iron production, which comprises a main body structure, a locking unit, a cutting unit and a distance adjusting structure. The locking unit is fixedly arranged on the main body structure, the cutting unit is movably arranged on the main body structure, and the distance adjusting structure is fixedly arranged on the main body structure. The first motor in the main body structure drives the first gear to mesh with the first gear seat, so that the distance between the clamping frames can be flexibly adjusted, and the grey cast iron workpieces and the workbench surface with different width specifications can be accurately matched. The modular series connection design of the third gear seat in the distance adjusting structure further expands the cutting range and adjusts the boundary. Meanwhile, the device has two modes of handheld construction and bench surface fixation, and can meet the multiple requirements of regular workpiece batch cutting, irregular workpiece special-shaped cutting and special position fixed-point cutting.

The utility model relates to the technical field of constructional engineering, in particular to a closed section steel component end and closed section steel component side connecting node which comprises a main box column and a side edge connecting box column located on the main box column, and two connecting plates are further fixedly installed on the outer side of the main box column. The connecting plate and the connecting box column are connected and fixed through a fastener; wherein reinforcing assemblies are arranged between the connecting plates and the connecting box columns, the two connecting plates are installed at the corresponding positions of the main box column, so that the connecting plates are effectively connected with webs of the connecting box columns, and operation holes are formed in the upper flange and the lower flange of each connecting box column, so that fastening pieces such as bolts can be conveniently installed. According to the joint connection design, the anti-torsion and anti-shear capacity of the end of the connecting box column is remarkably improved, in addition, the specially-made reinforcing assembly is matched, the connecting strength is further enhanced, the overall anti-torsion and anti-shear performance is optimized, meanwhile, the side connection requirements of rigidity and hinge joint are supported, and the applicability is better.

The invention discloses a multifunctional safety type connecting bridge system for an LNG (liquefied natural gas) filling wharf boat, which comprises a connecting bridge body, the connecting bridge body comprises an LNG equipment cabin and a pedestrian guardrail, an LNG pipeline group is laid in the LNG equipment cabin, and two ends of the LNG pipeline group are respectively communicated with a fixed pipeline of the connecting wharf boat and are output / input outwards; the LNG equipment cabin comprises an anti-explosion partition plate and an anti-explosion sealing top plate, the anti-explosion partition plate and the anti-explosion sealing top plate jointly define a cabin space for laying of the LNG pipeline set, the pedestrian guardrail is fixedly connected to the top of the LNG equipment cabin, and the pedestrian guardrail and the LNG equipment cabin define a pedestrian path; the LNG equipment cabin is movably connected with the wharf boat and the wharf through universal hinge supports. Through mechanical design and flexible connection design of vertical space layering, physical isolation of a dangerous source and a personnel channel is achieved in a single bridge body, safety is improved, the overall design is miniaturized, and the device is more suitable for transformation projects with limited space and can adapt to wharf boat operation under various hydrological conditions.

The utility model relates to the field of biopharmaceutical consumables, in particular to a connector dock for connecting soft and hard pipelines with different sizes, which comprises a ventilation body and a plurality of quick locking devices, the inside of the ventilation body is a ventilation cavity, each quick locking device comprises a quick connection lock hole and a thumb piece, and the quick connection lock hole is fixed on the ventilation body and communicated with the ventilation cavity; the connector dock can be connected with a plurality of quick connectors with different sizes and different quick connection modes, one ends of the quick connectors are connected with soft and hard pipelines with different sizes or are closed, and the other ends of the quick connectors are directly inserted into the quick connection lock holes and are locked through automatic bounce of the thumb pieces. According to the utility model, a plurality of quick-connection lock holes are provided in the same connector dock, and a plurality of quick connectors can be quickly connected with quick connectors with different sizes and different connection modes, so that two structural components are designed, the consistency of design and production is realized, the production efficiency and the production quality are improved, and the production cost is reduced. The multi-compatibility of the product and the universality level used in the whole industry are improved, and meanwhile the problem of complex connection of soft and hard pipeline connection and different pipeline sizes and different connections is solved.

The utility model discloses a crawler-type chassis and a walking robot, and relates to the technical field of crawler-type structures, and the crawler-type chassis comprises a supporting structure, a wheel set, a driving assembly and a crawler belt. According to the technical scheme, the overall stability of the chassis is improved through the inserted connection design of the main beam supports and the supporting beams; the driving wheel, the guide wheel set, the tensioning wheel set and the walking supporting arm assembly are beneficial for improving the stability and steering performance of the crawler belt and reducing deviation and falling of the crawler belt, meanwhile, the crawler belt is arranged on the outer side of the wheel set, the contact area between the crawler belt and the ground is increased, and the road holding force and stability of the crawler belt are improved. According to the arrangement mode, good stability and bearing capacity are provided, and the crawler-type chassis can adapt to various complex terrains.

The utility model discloses a compression-resistant and bending-resistant double-omega-shaped seamless steel pipe which comprises a steel pipe body, the periphery of the cross section of any position of the steel pipe body comprises two straight edges and two grooves, the two straight edges are symmetrically distributed, the two grooves are symmetrically distributed, and any groove is in arc connection with the two adjacent straight edges; the two grooves and the two adjacent straight edges form a double-omega-shaped structure. Through the connection design of the two oppositely-distributed straight edges and the two oppositely-distributed grooves, the double-omega-shaped seamless steel pipe is obtained and can be telescopically adjusted in the radial direction in the high-temperature and high-pressure environment so as to bear the impact of high-temperature and high-pressure steam, so that the anti-fatigue performance of the seamless steel pipe is improved, and the service life of the seamless steel pipe is prolonged.

The invention relates to the technical field of capacitor processing equipment, in particular to a capacitor shaping device, which adopts modular layout, organically combines a feeding mechanism, a bending mechanism, a turnover mechanism, a cutting mechanism and a detection mechanism, and is matched with a transfer mechanism to realize a full-automatic production process, so that the processing efficiency and the product consistency are remarkably improved. High efficiency and precision of capacitor pin shaping processing are realized; the bending mechanism serves as a core innovative part, and precise bending forming of the capacitor pins is achieved through cooperative control of the first linear driving assembly and the second linear driving assembly in combination with the elastic buffering mechanism and the floating connection design. A buffering system formed by the first elastic element and the second elastic element can automatically compensate dimensional deviation in the machining process, the mechanical gap is effectively eliminated through the elastic attaching design of the bending wheel and the machining inclined face, the machining precision is improved, and the bending requirements of pins of different specifications can be met.

The utility model discloses a stainless steel angle groove punch forming die which comprises a base, the outer wall of the top of the base is fixedly connected with a lower die structure and a punching structure, and the outer wall of the lower die structure is fixedly connected with the outer wall of the punching structure; the utility model relates to the technical field of angle groove stamping, according to the die structure, through the threaded connection design of the threaded rod and the positioning plate, an operator can flexibly adjust the position of the positioning plate according to stainless steel plate blanks of different sizes, it is ensured that the blank is always kept at the stable and accurate position in the stamping process, and the stamping efficiency is improved. Through mutual cooperation of a pressure spring, an extrusion plate and a demolding block in a demolding groove, in the stamping process, along with gradual forming of a blank, the demolding block can be pressed downwards, and the pressure spring accumulates force. After stamping is completed, the pressure spring releases elastic potential energy, the extrusion plate and the demolding block are automatically pushed to move upwards, and the formed stainless steel angle groove is ejected out of the forming groove of the lower mold block.

The utility model belongs to bore cleaning and maintaining device technical field, especially for vehicle 155 gun bore cleaning and maintaining device, including power component and maintaining component, power component includes handle shell, the inside installation of handle shell has power motor, the output of power motor is connected big gear through the meshing rotation of tooth disc, one end center of big gear is fixedly connected connector, be equipped with external thread on the connector. The utility model through power component realizes stable deceleration and increases the twist through big gear, cooperation positive and negative rotation motor, can drive maintaining component high -efficient reciprocating cleaning, promotes the removal efficiency of pollutant, the threaded connection design of connector and connecting cavity is convenient for quick replacement copper wire brush, nylon brush different brush head, adapts to the diversification cleaning demand, both ends annular can accurate orientation positioning, avoid long rod cylinder deviation and scratch bore, simultaneously, the length of bristle adaptation guarantees clean dead angle, effectively prolongs the service life of gun barrel, satisfies the high efficiency and safety requirement of actual combat maintenance.

The invention discloses a UHPC (Ultra High Performance Concrete) composite structure for repairing bridge deck pavement diseases and a construction method, and aims to solve the technical problems of poor durability, insufficient bearing capacity and the like generally existing after the existing bridge deck pavement pit slot diseases are repaired. The method comprises the core technical links of bridge deck pavement milling, drilling and steel bar planting, steel bar mesh installation, UHPC mixing, pouring, maintenance and the like. By adopting a composite structure composed of the UHPC120 concrete and the asphalt concrete surface layer and matching with the reinforced connection design of the HRB400-grade twisted steel mesh and the implanted erection steel bars, the bonding strength between the repairing layer and the original bridge deck concrete pavement layer is effectively improved, the structural integrity and the anti-cracking performance are enhanced, and the service life of a bridge is remarkably prolonged. The technology is suitable for repairing bridge floor cavities, pit slots and other diseases of various types of bridges, and has wide engineering application prospects.

The utility model provides a connectable gas cap, which relates to the technical field of die gas cap connection design, and comprises a gas cap body, a connecting block is arranged on one side of the gas cap body, a top block is arranged in the gas cap body, one end of the top block is fixedly connected with a top rod, the inside of the top rod is fixedly connected with a connecting rod, and the connecting rod is fixedly connected with the connecting rod. A telescopic spring is wound on the surface of the ejector rod, and one end of the gas cap body is fixedly connected with a fixed lantern ring. According to the utility model, by designing the structures such as the connecting clamping rod and the fixed lantern ring, the thread on the inner wall of the connecting block is in threaded connection with the surface of the fixed lantern ring, the gas cap body is fixedly connected to the connecting block, and meanwhile, the moving rod in the connecting block is aligned with the ejector rod in the gas cap body to eject and move the ejector rod; and the gas cap body is fixedly connected into the connecting block through the design of the structures such as the connecting clamping rod and the fixing lantern ring, so that the gas cap body can be quickly connected and disassembled at the same time, and the gas cap structure on the device can be conveniently replaced in the later period.

1. The name of the design product: earphone binding graphical user interface for electronic device. 2. The use of the design product: for an electronic device. 3. The design points of the design product: in the graphical user interface. 4. The picture or photo that best indicates the design points: design 1 front view. 5. The product is a graphical user interface (GUI) design, and other views are conventional designs, omitting other views. 6. Design 1 is designated as the basic design. 7. The use of the graphical user interface: the interface is used to connect earphone devices; design 1: design 1 front view is the initialization interface; click 【my】 in design 1 front view to enter design 1 interface change state diagram 1, which shows the current earphone device list; click 【OWS】 in design 1 interface change state diagram 1 to enter design 1 interface change state diagram 2, which shows the prompt information that the device is not connected; click 【connect】 in design 1 interface change state diagram 2 to enter design 1 interface change state diagram 3, which shows the prompt information that the device binding is successful; design 2: design 2 front view is the initialization interface; click 【my】 in design 2 front view to enter design 2 interface change state diagram 1, which shows the current earphone device list; click 【bind new device】 in design 2 interface change state diagram 1 to enter design 2 interface change state diagram 2, which shows the prompt information that the device connection code; enter the connection code and click 【connect】 in design 2 interface change state diagram 2 to enter design 2 interface change state diagram 3, which shows the prompt information that the device binding is successful.

The utility model discloses a sliding door checking fixture which comprises a roller shaft assembly, a door body clamping mechanism, a clamping and clamping mechanism and an adjusting auxiliary mechanism, the door body clamping mechanism comprises a hydraulic cylinder, a moving plate, a moving clamping rod, an adjusting sleeve and an adjusting clamping rod, and the clamping and clamping mechanism comprises a clamping pipe, a clamping rod, a threaded sleeve, rotating teeth, a pushing rod, a moving frame and a toothed plate. Movement of the moving plate and the clamping rod is controlled through the hydraulic cylinder, the clamping force can be accurately adjusted, stable clamping of the sliding door is ensured, adjustment of the clamping mechanism is more flexible through the design of the adjusting sleeve and the adjusting clamping rod, the clamping mechanism can adapt to door bodies of different sizes, firm fixation of the door bodies in the clamping process is ensured through the design of the clamping pipe and the clamping rod, and the clamping effect is good. And the threaded connection design of the pushing rod and the threaded sleeve is matched with the meshing of the toothed plate and the rotating teeth, so that the force transmission in the clamping process is stable and reliable.

The utility model provides a material feeding device for machining mechanical parts, which relates to the field of machining, and comprises a feeding hopper, an adjusting and dredging component and a feeding frame body, a flow adjusting plate and a distance adjusting plate in the adjusting and dredging component are used for adjusting the flow of the feeding hopper, and the distance adjusting plate is used for adjusting the distance of the feeding frame body. According to the material flow control device, accurate control over the material flow can be achieved, the stability and consistency of material supply in the machining process can be guaranteed, and therefore the production efficiency and the product quality are improved, and due to the rotary connection design between the flow adjusting plate and the distance adjusting plate and the rotary connection design between the flow adjusting plate and the distance adjusting plate and between the distance adjusting plate and the feeding frame body. In addition, the first limiting piece and the second limiting piece are used, so that the whole system can be flexibly adjusted to adapt to materials of different sizes or types, the adjusting flexibility is high, the universality and adaptability of equipment are improved, and then the production continuity and economic benefits are improved.

The invention discloses a full connection system, a backboard and a design method, and belongs to the field of full connection design, the backboard comprises at least three service card slot positions with the same backboard bandwidth, and each service card slot position is internally provided with at least two connectors. Each connector is provided with a plurality of ports, and the number of the ports is greater than or equal to the number of the service card slot positions minus 1; all ports in each connector of each service card slot position are connected with a port with the same serial number in the connectors located at the same position of the rest of other slot positions in a pairwise mode, and a full connection relation is formed; the rates of the ports in the connectors of the service cards are the same or different; the port types of the same serial numbers of different service cards are the same or compatible; and the different service cards are in full connection by configuring the public port. According to the invention, the problem of differentiation of business card backboard ports is solved, different types of business cards are supported, and the flexibility and expansibility of full connection are enhanced.

The invention relates to the technical field of metallized films, and discloses a metallized film unwinding and flattening device which comprises a machine body, a mounting seat is arranged on the inner wall of the machine body, a flattening roller is mounted on the mounting seat, a wrinkle removing mechanism is arranged on the machine body, and the wrinkle removing mechanism comprises a guide roller and a wrinkle removing wheel. The guide rollers are rotationally connected to the inner wall of the machine body. The guide roller and the wrinkle removing wheel are arranged to cooperatively remove wrinkles on the metallized film, the guide grooves symmetrically formed in the guide roller can actively unfold the metallized film towards the two sides, and bending stress left after winding is preliminarily released; the wrinkle removing wheel at the bottom of the scraping plate is matched to remove wrinkles on the upper surface of the film in a rolling mode, the elastic connection design of the torsional spring enables the wrinkle removing wheel and the film to keep adaptive pressure all the time, coating damage caused by overpressure or incomplete wrinkle removing caused by underpressure is avoided, and the problems of arc-shaped bending and local tiny wrinkles of the film after unwinding are effectively solved; and the machining deviation caused by insufficient flatness is reduced.

The invention belongs to the technical field of polishing equipment, and particularly relates to polishing equipment for staddle machining, which comprises a workbench, the workbench is provided with a discharging seat, a pressing assembly, a machining assembly and a discharging box, and the complete automatic process of feeding, positioning and clamping, double-sided polishing and automatic discharging of a staddle is realized. The work mode that in a traditional mode, workpieces are frequently transferred between different devices and stations is thoroughly changed, manual intervention and the transferring time between procedures are greatly shortened, the grinding rods are arranged on the two sides of the mounting plate, synchronous double-face grinding can be conducted on the cutting face of the staddle after cutting, attached chippings and burrs are effectively removed, and the working efficiency is improved. And the flatness and smoothness of a cutting surface are ensured. By means of the detachable connection design of the grinding blocks and the grinding rods, the abraded grinding blocks can be conveniently replaced, the number and the positions of the grinding blocks can be flexibly adjusted according to the machining requirements, the consistency and the quality of products are improved, and the grinding device has the beneficial effect that feeding, positioning, grinding, pushing and discharging are integrated.

This utility model discloses a coating machine for processing silicone protective film, including a coating frame, a transmission roller group, a coating seat, a pressing mechanism, a feeding end seat, a feeding mechanism, a discharge end seat, and a winding mechanism. The transmission roller group is arranged on the surface of the coating frame. A coating seat is arranged on one side of the top surface of the coating frame. A pressing mechanism is arranged on one side of the coating seat. A feeding end seat is installed on one side of the pressing mechanism. A feeding mechanism is arranged above the surface of the feeding end seat. A discharge end seat is arranged below one side of the outer wall of the coating frame. A winding mechanism is arranged above the surface of the discharge end seat. The feeding mechanism and the winding mechanism have the same structure. A traction roller is installed at one end of the coating frame. This silicone protective film coating machine improves coating efficiency and uniformity. The connection design between the various components is reasonable, facilitating disassembly and cleaning. In particular, the identical structure of the feeding mechanism and the winding mechanism makes maintenance simpler.

The invention provides a rubber bolt composite coaxial connection design method, a connection device and a preparation method of an FRP rib, and relates to the field of reinforcing members in building structures, the design method comprises the following steps: based on a cantilever beam structure of a jamming bolt bearing the shear stress of a bonding medium, obtaining the jamming resistance of the jamming bolt; the bearing capacity of the bonding medium is obtained based on a double-broken-line model; carrying out stress analysis on the FRP rib, the bonding medium and the sleeve to obtain total bearing capacity Fj; and obtaining structural design parameters of the sleeve, the jamming bolt and the bonding medium according to connection bearing critical conditions and mechanical parameters of the FRP rib. Through the combined action of the constraint force of the sleeve, the binding force of the binding medium and the blocking force of the blocking bolt, the coaxial connection deviation value of the FRP rib is dynamically compensated, so that the problems that the FRP rib is easy to slip, insufficient in centering degree, remarkable in stress concentration and performance degradation caused by long-term creep or shrinkage in the connection process are solved, and the service life of the FRP rib is prolonged. And high redundancy and high reliability are provided through multiple force transmission paths and an active compensation mechanism.

The invention relates to a special bearing device for electric power equipment transportation and a design method thereof, which are characterized in that the device comprises a plurality of bearing units, the bearing units are connected into a whole or are arranged side by side at intervals in the length direction, each bearing unit comprises a wooden tray and a plurality of damping balls arranged at the bottom of the wooden tray, and the damping balls are arranged at the bottom of the wooden tray. The design method comprises the steps that the size of the wooden tray is determined according to the size of the base of the electric power equipment to be loaded, the number of the vibration reduction balls is determined, calculation is conducted according to the uniform bearing capacity of each vibration reduction ball, and it is guaranteed that the bearing capacity of a single ball does not exceed 1 / 6 of the ultimate bearing capacity of the single ball. The device is simple in structure and convenient to use, the single-time application cost can be effectively reduced, repeated use is achieved, vibration and impact loads borne by electric power equipment in the transportation process can be reduced, and the risk of damage to transported goods is reduced.

The utility model discloses a novel orthopaedic orthopedic device for reduction and fixation, which relates to the technical field of orthopaedic orthopedic devices and comprises an upper fixing ring and an adjusting arm ring movably connected with the upper fixing ring, side seats are symmetrically arranged on the side surfaces of the upper fixing ring and the adjusting arm ring, an adjusting rod is clamped between the two side seats, and the adjusting rod is movably connected with the upper fixing ring. By means of the movable connection design of the upper fixing ring and the adjusting arm ring and the threaded connection mode of the side face seat and the X insertion frame through the limiting threaded rod, the orthopedic device for the orthopedics department achieves height adjustability, a doctor can adjust the position of the orthopedic device according to the specific fracture condition and orthopedic requirements of a patient, and the orthopedic device for the orthopedics department is convenient to use. The angle, the position and the fastening degree of the device are flexibly adjusted, meanwhile, due to the design of the limiting threaded rod, the stability of the device in the using process is guaranteed, looseness or displacement caused by movement or external force of a patient is effectively prevented, and therefore the orthopedic effect and the success rate of treatment are greatly improved.

According to the anti-interference lightning arrester, the magnetic ring positioning groove is formed in the inner wall of the cable plugging part of the plugging channel, and the anti-interference magnetic ring is arranged, so that the influence of electromagnetic interference on the performance of the lightning arrester can be effectively reduced. In addition, through the buckle type connection design, the anti-interference magnetic ring is more convenient to install and replace, and the maintenance efficiency is improved. The arrangement of the crimping terminal not only ensures the reliable connection between the cable and the lightning arrester, but also further enhances the anti-interference capability of the lightning arrester through the internal connection with the anti-interference magnetic ring. On the whole, the lightning arrester can still keep stable working performance in a complex electromagnetic environment due to the design, and a powerful guarantee is provided for safe operation of a power system.

The utility model discloses a material level detection device for solid materials in a stock bin and the solid stock bin, and belongs to the technical field of material level measurement equipment. The device comprises a moving rod, a cambered surface movable cover, a linear bearing guide piece, an adjustable check ring, a spring elastic piece and the like, a sealing structure is formed through a flexible connecting piece (an organ cover), and material interference is avoided. The adjustable check ring is combined with the key connection design, the detection pressure can be adjusted according to the material density, and detection of particles, powder and other solid materials is adapted. The device solves the problems of dust interference, misjudgment of hanging materials, mechanical abrasion, complex calibration and the like in the prior art, has the advantages of being high in environmental adaptability, small in abrasion, convenient and fast to maintain and the like, can effectively achieve automatic detection of the high and low material levels of the stock bin, and guarantees the stability of continuous production.

The utility model relates to the technical field of composite pipelines, in particular to a fireproof corrosion-resistant heat preservation composite pipeline. The fireproof corrosion-resistant heat preservation composite pipeline comprises a plurality of pipeline units which are arranged in the length direction of the pipeline units and can be spliced. Each pipeline unit is provided with a heat preservation layer, a pipeline body, a fireproof layer and a corrosion-resistant layer from inside to outside. The fireproof corrosion-resistant thermal insulation composite pipeline is ingenious in structural design, has excellent thermal insulation, fireproof and corrosion-resistant performance, adopts pipeline connection design of an ingenious structure, is simple and convenient to disassemble and assemble, facilitates pipeline replacement of a maintenance box, can be suitable for long-line material conveying, and is stable in connection and extremely good in leakproofness.

The utility model discloses a shield tunneling machine sealing brush, which belongs to the field of shield tunneling machine sealing brushes, and is characterized in that a detachable steel wire brush comprises a steel wire brush arc-shaped part, a steel wire brush straight strip part and an elastic part, and the lower end of the elastic part is provided with the steel wire brush straight strip part which penetrates through an upper-layer steel frame to be fixed with a lower-layer steel frame; a steel wire brush arc-shaped part is arranged at the lower end of the steel wire brush straight strip part, and the steel wire brush arc-shaped part provides compression resistance for the sealing brush. Through the rapid separation design, workers can rapidly complete dismounting and mounting of the steel wire brush, the downtime is shortened, the maintenance cost is reduced, meanwhile, the accident risk is reduced, and safety is improved. The quick disassembly design also shortens the replacement time, improves the operation efficiency of the shield tunneling machine, reduces the damage of disassembly to parts such as the sealing brush, prolongs the service life, and reduces the long-term maintenance cost. The clamping fixing and bending connection design ensures that the steel wire brush is firmly fixed to the steel frame, the stability and reliability are improved, the compression resistance is enhanced, and the leakage risk is reduced.

The utility model relates to the technical field of mine coal mining, in particular to a grooving drill rod which solves the problems that in the prior art, due to the fact that polygonal matched insertion and key connection are low in connection strength, a drill rod is prone to falling off in the using process, and economic losses and potential safety hazards are caused. A grooving drill rod comprises a rod body, an external threaded rod and an internal threaded ring, the top of the external threaded rod is connected with a top column through a cylinder, the top column is connected to one end of the rod body, the internal threaded ring is connected to the other end of the rod body, and the edge of the top of the internal threaded ring is connected with a convex ring matched with the cylinder. By adopting the threaded connection design of the external threaded rod and the internal threaded ring, combining the close fit of the cylinder and the convex ring and the reinforced connection of the fixed screw rod, the connecting strength of the drill rod is obviously enhanced, the loosening or falling phenomenon caused by overlarge torsion in the use process is effectively prevented, and the service life of the drill rod is prolonged. And the safety and the reliability of drilling operation are improved.