267results about How to "High structural reliability" patented technology

The utility model relates to a prefabricated middle partition wall structure of a tunnel ventilation inclined shaft. The prefabricated middle partition wall structure at least comprises a bottom supporting structure, a steel supporting assembly and a prefabricated modular wallboard. A positioning groove is formed in the top face of the bottom supporting structure, and the bottom of the steel supporting assembly is embedded into the positioning groove and fixed. The prefabricated modular wallboard is formed by splicing a plurality of prefabricated slabs, the adjacent prefabricated slabs are connected through tongue-and-groove structures which are matched in a concave-convex mode, and the tongue-and-groove joints are filled with sealing materials. The steel supporting assemblies are longitudinally arranged at intervals, and the tops of the steel supporting assemblies are fixed to a tunnel lining to form a steel-concrete combined structure for supporting the prefabricated modular wallboard. The steel supporting assembly and the prefabricated modular wall plate form a steel-concrete prefabricated structure, and the stability of the whole structure is enhanced. By adopting the autoclaved aerated concrete precast block material and the concave-convex groove embedded modular structure, the problems that the construction quality is difficult to control, the construction period is long, the on-way resistance of air flow is large and the like in the existing reinforced concrete mid-partition wall are solved.

The utility model relates to a kind of spring hinge assemblies for glasses legs, including pile head, pile head positioning sheet, spring box and spring core mechanism, the pile head slot that is penetrated out of its one end is set on the pile head, the glasses leg folding passageway that is penetrated out of the inside of pile head is further included on the pile head slot, the pile head positioning sheet is fixed on the pile head and includes the connecting ring extending into the pile head slot, the spring core mechanism is set in spring box, the spring core mechanism includes connecting sheet, the connecting sheet is penetrated out of spring box and is set with connecting hole, the connecting sheet is cooperatively set in the pile head slot and is buckled with connecting ring by connecting hole, the hinge assembly not only can realize the conventional opening and closing action of glasses leg, but also can produce certain up-down swing buffer when being subjected to vertical direction external force, to effectively prevent the bending or fracture of glasses leg due to excessive stress.

The application discloses a downhole multi-parameter logging device and belongs to the technical field of logging while drilling, comprising a drill collar, a battery module and a circuit module are respectively arranged at the two ends of the inner cavity of the drill collar and are axially fixed through locking modules, a metal centralizer is fixedly arranged in the inner cavity of the drill collar, a plurality of independent centralizing blocks are arranged at the center of the metal centralizer, the drill collar comprises a drill collar body, an antenna housing, a strip-shaped magnetic core and a coil, and stable signal transmission is guaranteed, the battery module comprises annular batteries and butterfly springs, can be replaced on site and has a damping function, the circuit module comprises resistivity, azimuth gamma and inclination measurement modules, is integrally designed and has strong anti-interference performance, the metal centralizer realizes self-adaptive centralizing through centrifugal force and hydraulic damping, and the independent centralizing blocks can compensate temperature errors, the device is stable in structure, is suitable for complex well conditions, is convenient to maintain and can realize accurate and synchronous measurement of multiple parameters, thereby providing reliable data support for logging while drilling.

The utility model discloses an upper cross beam structure of a closed four-point high-speed precision press, which comprises an upper cross beam, the upper cross beam is of a symmetrical structure, two ends of the upper cross beam are respectively provided with a mounting hole, each mounting hole is respectively provided with a first sliding bearing seat, and at least one mounting hole is provided with a flywheel seat; a first installation seat is arranged in the middle of the upper cross beam, a second installation seat is detachably arranged on the first installation seat, lower bearing seats are arranged at the two ends of the first installation seat respectively, upper bearing seats are arranged at the two ends of the second installation seat respectively, and each upper bearing seat and the corresponding lower bearing seat form a second sliding bearing seat. According to the technical scheme, the upper cross beam is of a unique split type structure, and the first installation base and the second installation base are connected through the attached installation planes and the bolts. On one hand, machining is facilitated, and the overall machining difficulty is reduced; and on the other hand, when the precision deviation of the hole system is detected, fine adjustment can be carried out by repairing the mounting plane.

This invention provides a surface acoustic wave (SAW) filter, comprising a piezoelectric layer and interdigitated electrodes. The interdigitated electrodes are disposed on the piezoelectric layer and include at least a first metal layer and a second metal layer stacked together. The first metal layer is made of platinum or an alloy with platinum as the main component, and the second metal layer is made of aluminum or an alloy with aluminum as the main component. By setting the material of the second metal layer to aluminum or an alloy with aluminum as the main component, the uniformity of metal coverage of the electrode structure can be effectively improved, avoiding excessive local resistance or structural defects caused by poor coverage. Setting the material of the first metal layer to platinum or an alloy with platinum as the main component provides reliable support for the second metal layer, reducing the risk of deformation or corrosion of the aluminum layer in subsequent processes. By using a stacked structure of two complementary materials for the interdigitated electrodes, both structural miniaturization and improved overall electrical performance and structural reliability of the interdigitated electrodes are achieved.

The invention discloses a novel nano-coating cast steel brick and a preparation method thereof. The cast steel brick comprises a cylindrical refractory matrix, a double-layer nano coating and a modified metal reinforcing belt, wherein the double-layer nano coating comprises a nano aluminum oxide bottom layer and a functional layer containing a sol-gel pre-coated graphene-ceramic composite material. According to the preparation method, pulse vibration forming, a sol-gel pre-coating technology and a carbon thermal reduction protective atmosphere sintering technology are adopted, the graphene-ceramic composite material has an Al2O3-BN double-layer ceramic coating layer protection structure, and the structural stability of graphene at the high temperature is ensured. The technical problems of low refractoriness, poor corrosion resistance and short service life of a traditional cast steel brick are solved, the refractoriness is improved by about 6%, the corrosion resistance is improved by 78%, the thermal shock stability is improved by about 79%, the single use performance is improved by 250%, and the cast steel brick is suitable for molten steel flow control in a continuous steel casting process.

The hair sticking device comprises a handle assembly and a paper tube detachably connected with the handle assembly, the handle assembly comprises a handle and a support connected to the lower end of the handle, the support comprises a first connecting arm and a second connecting arm, the first connecting arm and the second connecting arm are symmetrically arranged, and the second connecting arm is connected with the support through a locking assembly. The locking assembly is used for locking the second connecting arm on the handle so as to cooperate with the first connecting arm to clamp the paper tube, and the locking assembly comprises a button which is used for unlocking the locking assembly so as to enable the second connecting arm to be transversely far away from the first connecting arm; after the locking assembly is unlocked, the first connecting arm is always kept connected with the support. According to the scheme, the structure of the handle assembly of the hair sticking device is improved, the locking assembly is arranged, the locking state and the unlocking state of the second connecting arm are achieved, the convenience, the structural reliability and the use experience of paper tube replacement of a user are improved, and the core pain points that in the prior art, disassembly and assembly are tedious, and parts are prone to being lost are solved.

This utility model relates to the technical field of tension adjustment devices, specifically a tension adjustment device for the production of flame-retardant needle-punched fabric. Its purpose is to solve the problem that existing tension rollers require height adjustment when guiding needle-punched fabrics of different specifications. However, the adjustment of the tension roller is cumbersome and time-consuming, achieved by raising and lowering screws on a bracket. Therefore, this new device improves the efficiency and effectiveness of the tension adjustment, thus enhancing its practicality. The device includes a tension roller, a rotating shaft, and fixed plates. The rotating shaft is fixedly mounted to the tension roller, and both sides of the rotating shaft are rotatably connected to corresponding fixed plates. The tension roller is guided and pressed by the flame-retardant needle-punched fabric. A pre-tightening mechanism is provided at the bottom of the two sets of fixed plates. The pre-tightening mechanism also includes a sliding block, a lifting plate, a limiting plate, and a spring. A groove is provided at the top of the lifting plate, and a working cavity is provided at the bottom of the groove.

The invention provides a surgical suture line with barbs and a preparation method thereof, and relates to the field of surgery and medical cosmetology, the preparation method of the surgical suture line with barbs comprises the following steps: S1, stamping on a suture line base material to form a plurality of barbs to obtain a suture line base material with barbs; s2, the suture line base material with the barbs is fed into a heated bending and shaping mold, and after cooling and curing, the surgical suture line with the barbs is obtained. According to the surgical suture line with the barbs and the preparation method of the surgical suture line, the barbs are formed on the suture line base material in a stamping mode firstly, then the base material with the barbs is heated, bent and shaped, the three-dimensional suture line with the barbs is integrally formed, cutting stress concentration is fundamentally eliminated, and the surgical suture line with the barbs and the preparation method of the surgical suture line with the barbs are obtained. And the mechanical interlocking effect generated by the three-dimensional configuration is combined, so that the connection reliability of the barb and the body of the suture line is remarkably improved.

The utility model discloses an interactive hand clamping mechanism, which comprises an X-axis cross beam, an X-axis cross beam, an X-axis cross beam, a Y-axis cross beam, a Y-axis cross beam, a Y-axis cross beam and a Y-axis cross beam, the upper clamping hand module reciprocates along the X-axis cross beam in the upper clamping hand moving area; the upper clamping hand module comprises an upper clamping hand, an upper clamping hand X-axis translation seat and a Y-axis driving unit; the Y-axis driving unit drives the upper clamping hand to extend towards one side part of the X-axis cross beam to wait for materials and to retract to avoid one side part deviating from the X-axis cross beam; the lower clamping hand module reciprocates along the X-axis cross beam in the lower clamping hand moving area; the lower clamping hand module comprises a lower clamping hand, a lower clamping hand X-axis translation seat and a Z-axis driving unit for driving the lower clamping hand to move in the Z-axis direction relative to the lower clamping hand X-axis translation seat; and the Z-axis driving unit drives the lower clamping hand to ascend for material waiting and descend for avoiding. The structural compactness, the movement precision, the working stability and the structural reliability are improved.

This utility model discloses a spiral-grooved vibration-damping tapered shank cutting tool, relating to the technical field of BT-type tapered shank cutting tools. Specifically, it is a spiral-grooved vibration-damping tapered shank cutting tool, comprising a flange and a BT-type tapered shank. The surface of the BT-type tapered shank is provided with spiral grooves, which are filled with elastic damping material. This spiral-grooved vibration-damping tapered shank cutting tool, by designing spiral grooves in the BT-type tapered shank and filling them with elastic damping material, utilizes the multi-head spiral structure of the spiral grooves to disperse vibration energy in multiple directions. At the same time, the elastic damping material absorbs high-frequency vibrations through shear deformation. This "rigid-flexible composite" structural design solves the contradiction between vibration suppression and structural strength in BT-type tapered shank cutting tools, and also provides high structural reliability without affecting the original strength of the BT-type tapered shank. It offers a BT-type tapered shank cutting tool that combines high rigidity, good vibration reduction performance, and low manufacturing cost.

The application discloses a pile driver intelligent guiding device arranged on the surface of a machine body and comprising a vertical guiding mechanism, the vertical guiding mechanism comprising a frame rod fixedly connected with the machine body, a fixed plate fixedly installed at the end of the frame rod, and a universal joint arranged on the top surface of the fixed plate. The pile driver intelligent guiding device is connected with the fixed plate through the universal joint, and a sliding cylinder-screw rod driving structure is combined to adjust the pitch angle of a laser instrument in real time. When the sliding cylinder slides along the fixed cylinder, the fixed plate is pushed to rotate around the universal joint as the fulcrum, so that the laser line emitted by the laser instrument is always perpendicular to the ground, the high-precision guiding requirement of the vertical implantation of a steel sheet pile is met, the inner wall of the sliding cylinder is provided with an embedded nut and is threadedly connected with a screw rod, the end of the screw rod is limited from being separated from the sliding cylinder through a stop ring, the threaded connection is prevented from being invalid due to vibration or impact, the surface groove of the sliding cylinder is matched with the inner wall protrusion of the fixed cylinder to prevent the rotation of the sliding cylinder and ensure that the sliding direction is always along the axial direction, and the structural reliability is improved.

This application provides a semiconductor laser with a ridge-side integrated PN junction temperature control layer and its fabrication method, relating to the field of semiconductor laser technology. The semiconductor laser includes a substrate; an epitaxial structure formed on one side of the substrate along a first direction; the epitaxial structure having a first surface facing away from the substrate; a ridge waveguide layer formed on the first surface and extending along a second direction; a temperature control region formed on the first surface and located on one side of the ridge waveguide layer along a third direction; the temperature control region includes a P-type control layer and an N-type control layer, which form a PN junction. In this application embodiment, because the PN junction has high resistance and small footprint under static operation, it is possible to achieve efficient thermal tuning while reducing the process complexity of the thermal tuning scheme, improving structural reliability, and reducing the footprint, thereby meeting the industrial demands for high integration, low cost, and high reliability.

The utility model discloses a high-torque-density magnetic transmission speed reducer and a built-in motor of a power-assisted bicycle, and belongs to the power-assisted technology of bicycles. A magnetic transmission speed reducer and a motor in the prior art have the defects of large torque fluctuation, low transmission efficiency, easy magnetic field mismatch, uncontrollable eddy current loss and the like, the magnetic transmission speed reducer comprises a first stator, a first rotor and a modulation ring, the modulation ring is located between the first rotor and the first stator, a first air gap is kept between the modulation ring and the first stator, and a second air gap is kept between the modulation ring and the second stator. A second air gap is kept between the modulation ring and the first rotor, the modulation ring comprises modulation teeth, the total number of the modulation teeth is p2, the number of pole pairs of the first stator magnetic ring is p3, the number of pole pairs of the first rotor magnetic ring is p1, p1 = p2-p3, a magnetic field of the first air gap is coupled with a magnetic field of the second air gap, and rotation from the first rotor is output in a speed reduction mode through the modulation ring. The motor part and the reduction gear realize transmission through magnetic force, thereby improving the motor operation efficiency and reducing the overall noise of the motor.

The application discloses a battery pack and a vehicle, and belongs to the technical field of vehicle batteries. The battery pack comprises a support structure and a battery module. The support structure comprises a first support and a second support. The first support is arranged on a bottom plate of a battery box body, and the first support has a first accommodating space. The second support is arranged on a side of the first support away from the bottom plate of the battery box body, and the second support has a second accommodating space. A positioning block is arranged on a side of the first support facing the second support, and the second support is provided with an additional beam. The additional beam is connected with the positioning block. The battery module comprises a first module and a second module. The first module is arranged in the first accommodating space, and the second module is arranged in the second accommodating space. The combined mounting mode of the layer-by-layer arranged support structure and the battery module significantly improves the space utilization rate of the battery pack, and effectively improves the volume energy density of the whole battery system.

This application relates to the field of electrical components, specifically to a filter; it includes a housing, a resonant cavity, several stub transmission plates, and a connector; the lateral extensions of adjacent stub transmission plates are connected at intervals by insulating connectors to form a main connector, the two ends of the main connector are electrically connected to the connector, and the lateral extensions of each stub transmission plate are staggered on both sides of the main connector and electrically connected to the sidewall of the resonant cavity; through this structure, the stub transmission plates form a continuous whole, effectively improving mechanical strength and resonant stability, simplifying assembly processes and reducing the number of solder joints; at the same time, the staggered arrangement of the main connector and the stub transmission plates improves the utilization rate of cavity space, which is conducive to realizing miniaturization and high integration design.

The utility model relates to the technical field of power boxes, and discloses a new energy automobile power box which comprises a chassis frame and a fixing part mounting hole, the fixing part mounting hole is formed in the inner wall of the top of the chassis frame, a power module is connected to the outer wall of the bottom of the chassis frame in a clamped mode, and an adjusting mechanism is arranged on the chassis frame. An auxiliary mechanism is arranged on the chassis frame, the adjusting mechanism comprises a ring opening, the ring opening is formed in the inner wall of the left side of the chassis frame, a positioning opening is formed in the inner wall of the bottom of the chassis frame, the inner wall of the right side of the ring opening is in threaded connection with a fixing screw, and a positioning plate is clamped to the inner wall of the bottom of the positioning opening; the outer wall of the left side of the positioning plate is fixedly connected with a power box shell. According to the utility model, the convenient separation of the power box shell and the chassis frame is realized through the adjusting mechanism, so that the cooling module, the inductor module main body and the power module form a modular structure and can be independently disassembled and assembled without overall disassembly, and the maintenance time is greatly reduced.

The invention relates to the technical field of batteries, and discloses a pole column and a forming process thereof, a battery cell cover plate assembly and a battery cell. The pole forming process comprises the following steps: stamping and blanking a conductive composite board along a Z direction to obtain a pole body; wherein the pole body comprises a first conductive section and a second conductive section; wrapping and limiting the first conductive section, and extruding and expanding the local part of one end, far away from the first conductive section, of the second conductive section along the Z direction, so that an annular flange is formed on the side wall of the second conductive section on the X-Y plane; stamping and stretching the local part of the annular flange to enable the free end of the annular flange to form a pole turnup; wherein the pole turnup comprises a first turnup and a second turnup which are connected with each other, the first turnup extends towards the direction far away from the second conductive section along the Z direction, the first turnup and the first conductive section are arranged at an interval, and the second turnup extends towards the direction far away from the first conductive section. The pole prepared by the invention can reduce heat transferred to the upper plastic, and the insulating property of the pole is guaranteed.

The invention relates to an energy storage device and a power utilization system. The energy storage device comprises a shell, an electrode assembly, an end cover assembly and a binding piece, wherein the shell is provided with an accommodating cavity; the electrode assembly is arranged in the accommodating cavity, the electrode assembly comprises a plurality of tabs and an electrode main body which are electrically connected, and the tabs and the electrode main body are arranged along a first direction; the end cover assembly is arranged on one side of the shell and used for sealing the containing cavity. The binding piece is positioned between the end cover assembly and the electrode main body; the binding piece is provided with a penetrating hole, and the penetrating hole penetrates through the two opposite surfaces of the binding piece in the first direction. The penetrating hole extends along a second direction, the plurality of tabs penetrate through the penetrating hole, and the first direction is intersected with the second direction; the penetrating hole is provided with a first side wall and a second side wall which are oppositely arranged in the second direction, and in the second direction, the distance between the first side wall and the second side wall is larger than the size of the ends, close to the electrode body, of the tabs.

This utility model discloses an engineering vehicle and its chassis, including a chassis body, a winch, and a winch support. The winch is installed on the rear side of the chassis body in the forward direction, allowing the winch performing traction work behind the chassis body and the working device performing construction work in front of the chassis body to operate independently or collaboratively without interference, thus improving equipment utilization and work efficiency. The winch support is installed on the chassis body located behind the winch, and the winch support has a rope guiding structure to limit the rope released from the winch. This utility model enables convenient collection of logs while meeting load-bearing requirements.

The utility model relates to wind power generation technical field discloses wind power generation device, including support subassembly, wind wheel subassembly and power generation subassembly, wind wheel subassembly includes main shaft and impeller, and the main shaft fixed mounting is in support subassembly, and the impeller rotatablely installs on the main shaft, power generation subassembly includes first power generation unit and second power generation unit, and the stator of first power generation unit and second power generation unit all fixed mounting is in main shaft, and the outer rotor of first power generation unit and second power generation unit all are connected with the impeller fixedly, the utility model under the same wind force condition, first power generation unit and second power generation unit can work simultaneously, and the mechanical energy of impeller capture is more efficient, more fully converts into electric energy, effectively increases the overall power generation, improves the wind energy utilization efficiency and power generation efficiency, solves when the outside wind speed is at the low level, and the overall power generation of generator is insufficient.

The utility model provides a kind of cover plate structure and battery, belong to battery technical field, cover plate structure includes first cover plate, first pole post, first lower plastic and insulating part being arranged on first cover plate, and connecting portion being arranged between first lower plastic and insulating part. Among them, first pole post is used to and the first lug of pole group is connected, insulating part can be connected with first lower plastic by connecting portion, and abuts on the side of first lug opposite to first pole post. The cover plate structure of the utility model can fix the first lug after welding, limit the shake and displacement of first lug in the process of battery use, transportation etc.

A conductive terminal includes a first fixing portion, a first mating portion, a second fixing portion, and a second mating portion. The second mating portion and the first mating portion are arranged side by side along a first direction. The first mating portion includes a first spring extending along a second direction, and the first spring includes a first elastic contact portion protruding from the first fixing portion along the first direction. The second mating portion includes a second spring, and the second spring includes a second elastic contact portion protruding from the second fixing portion along the first direction. The first elastic contact portion extends along a first arcuate surface, and the second elastic contact portion extends along a second arcuate surface, wherein the protrusion directions of the first arcuate surface and the second arcuate surface are opposite along the first direction. This invention omits the adapter spring, improving structural reliability and safety. This invention also discloses an electrical connector including the conductive terminal and an electrical connector assembly.

The utility model provides a kind of liftable chassis structure suitable for shifting robot, for the existing shifting robot structure is mostly single-layer chassis design, limited to its rear structure is higher, it is difficult to seamlessly dock with different height sickbed, this paper designs a kind of new liftable chassis structure suitable for shifting robot to effectively conquer existing robot rear structure is too high, difficult to insert bed body and other difficult problems.When shifting robot moves to patient bedside, under the drive of vertical motor, the seat plate is located on the bed surface, which facilitates nursing staff to place the patient on the shifting robot, while ensuring the balance of the robot;When the shifting robot is running on a smooth road, under the drive of the horizontal motor, the seat plate is smoothly docked through the horizontal movement of the first chassis, effectively improving the convenience and comfort of patient transfer.The rear wheel and the horizontal shifting mechanism are fixed on the second chassis, which improves the driving stability and structural reliability.

This utility model discloses an ultrasonic device, including a display device and a support device. The display device includes a shell assembly and a screen assembly. The shell assembly includes a rear shell and a front frame. The screen assembly is located between the rear shell and the front frame and includes a screen body and a connecting structure that supports the screen body. The support device supports the display device, and the display device is assembled and connected to the support device through the connecting structure. According to the ultrasonic device of this utility model, the display device is assembled and connected to the support device through the connecting structure that supports the screen body. Thus, the weight of the screen assembly is directly borne by the support device. The shell assembly does not need to bear the screen assembly and be connected to the support device, which would prevent the shell assembly itself and the connection between the shell assembly and the screen assembly from being damaged by factors such as bumps or vibrations. This effectively protects the shell assembly and allows the shell assembly and screen assembly to maintain a good fit, improving the structural stability of the display device and the reliability of the connection between the display device and the support device.

The application discloses an antibacterial and anti-mite low-odor slow-rebound memory sponge, relates to the technical field of high polymer foam materials, and adopts in-situ doping and synchronous grafting coupling technology of an antibacterial and anti-mite active group to uniformly disperse mesoporous silicon dioxide nanoparticles in a polyurethane matrix and realize in-situ anchoring when the slow-rebound memory sponge is foamed and formed, and simultaneously graft non-dissolution type antibacterial and anti-mite active groups on the surface of the mesoporous silicon dioxide; the mesoporous silicon dioxide continuously adsorbs trace volatile odor molecules in the sponge by virtue of a high specific surface area, realizes static odor locking and odor removal, the antibacterial and anti-mite groups are stably combined by a covalent bond without migration and precipitation risk, the mesoporous structure blocks a moist microenvironment for mites to inhabit, and bacteria breeding is inhibited from the source, so that the sponge has both persistent antibacterial and anti-mite performance and ultralow odor release characteristics without the need of adding covering type fragrances and free antibacterial additives.

The embodiment of the utility model discloses a battery device, an energy storage device, an energy storage system and a charging network. The battery device comprises a plurality of battery cells, wherein a pressure relief mechanism is arranged on the wall part of a shell of each battery cell; the discharge pipeline comprises a gas collecting pipe, the gas collecting pipe comprises a first area and a plurality of second areas, the first area and the second areas are oppositely arranged along the thickness direction of the wall part, the second areas are second through holes or weak areas, and the plurality of second areas are in one-to-one correspondence with the pressure relief mechanisms of the plurality of single batteries; the plurality of pressure relief mechanisms are arranged in the second area, so that emissions discharged by the plurality of pressure relief mechanisms enter the gas collecting pipe through the second area; and the heat insulation piece covers the first area. According to the battery device, the energy storage device, the energy storage system and the charging network, the reliability and the stability of the battery device can be improved.

The utility model provides an environment monitoring device for tunnel safety, which comprises a shell, an air inlet flow channel, a semiconductor detection unit, a control panel and a power supply module, the outer wall of the air inlet flow channel is in a circular truncated cone shape and can gather and accelerate air flow, so that the semiconductor detection unit can obtain gas data more efficiently and accurately, and the detection efficiency and sensitivity are improved; in the filter piece connected with the air inlet flow channel, the filter screen can intercept impurities, pollution to the detection unit, influence on result accuracy and reduction of element loss are avoided, and the threaded connection of the connecting cylinder facilitates maintenance; the anti-vibration pad at the bottom of the shell supports the air inlet channel, external vibration influence is reduced, looseness of internal components is reduced, and stable work of the device is guaranteed; the warning lamp is electrically connected with the controller and the like, and warning signals can be sent out in time when abnormity is detected, so that rapid processing is facilitated, and the early warning capacity is improved. According to the device, efficient and accurate detection, stable operation and timely early warning are realized, and the tunnel safety monitoring level is improved.

This application discloses an automotive hood lock, including a lock plate, a hook lock, and an actuating assembly. The lock plate has a receiving groove extending through its top. The hook lock is rotatably connected to one side of the lock plate. The actuating assembly includes a lever plate, a first rotating shaft, a second rotating shaft, and a pawl located on the same side of the lock plate. The first and second rotating shafts are respectively located on opposite sides of the receiving groove and extend through the lock plate. One end of the lever plate and one end of the pawl are both sleeved on the first rotating shaft, and the other end of the lever plate is used to connect to a pull rope. The other end of the pawl and the hook lock are sleeved on the second rotating shaft, and the pawl has a cavity directly opposite the receiving groove. When the pull rope pulls the lever plate to rotate, the pawl drives the second rotating shaft to rotate, thereby causing the hook lock to rotate and switch between a locked position and a released position, thus locking or releasing the hood lock ring placed in the receiving groove. This solves the problems of cumbersome and concealed traditional double unlocking, and significantly improves in terms of ease of operation, environmental adaptability, and structural reliability.

The utility model discloses a modularization quick -wearing AF line suspender connecting structure contains base, boom and insulator, and the boom is located between both, and the insulator one end has cable clamp for fixing AF line, the base has the connecting ring and guide column of anchor groove, and the boom has top cap, arc push block and the like spare, when installing, through guide column and L shape guide groove complete preliminary positioning, then use the jacking device to make arc push block card into anchor groove and realize firm fixation, and the insulator is connected with the boom through the positioning rod, the convenient connection of the clamping block, modularization design is convenient to independent replacement when partial component damage, has reduced maintenance cost, and the whole structure installs fast, stable and reliable, can effectively improve AF line suspender laying efficiency and use stability.