226results about How to "Flexible installation" patented technology

The utility model discloses a photoelectric platform stabilizing device, the utility model relates to photoelectric platform technical field, including base, the middle part fixedly connected with fixed block in the base inner wall, the fixed block inner wall fixedly connected with first motor, the output end transmission of first motor has the rotary disc, the upper surface fixedly connected with stabilizing device of rotary disc. This photoelectric platform stabilizing device, through setting stabilizing device, positive and negative toothed rod cooperation limiting rod drive clamping stable frame synchronous relative motion can realize even clamping to different size photoelectric equipment, avoid equipment to shake, the cover plate further prevents equipment from falling off, ensure that the equipment is fixed in the position in the working process, when the first motor drives the rotary disc to rotate, the limiting ring on fixed plate and the limiting block under rotary disc accurate adaptation, limit the radial displacement of rotary disc, reduce the shake, guarantee the stability when azimuth adjustment.

The utility model relates to the technical field of mechanical engineering, and discloses an anti-stretching auxiliary device for replacing pipeline components, which comprises two rigid supports, upper screw rods are slidably mounted on two sides of the interiors of the two rigid supports, and two ends of each upper screw rod penetrate through the interiors of the two rigid supports. A part penetrates through the upper hoop and the lower hoop on the two sides, the lower hoop is attached to the part, the nut is rotated to achieve reverse self-locking, the fixing mode is quite reliable, the part can be prevented from loosening, the upper hoop and the lower hoop surround and clamp a pipeline, the expansion amount caused by thermal expansion and cold contraction can be effectively reduced, the stability of a pipeline system is guaranteed, and the pipeline is prevented from being damaged. And finally, the whole replacement process is convenient, efficient, time-saving and labor-saving, the working efficiency can be improved, the labor cost can be reduced, the labor intensity can be reduced, the quality and speed of pipeline maintenance work can be improved, and the service life of the pipeline can be prolonged.

The utility model discloses a phosphoric acid tail gas guiding device, which belongs to the technical field of tail gas guiding and comprises an outer layer pipe, a middle layer is sleeved on the inner side wall of the outer layer pipe, an inner layer pipe is sleeved on the inner side wall of the middle layer, a flange is arranged at the center of one side wall of the outer layer pipe, and a spiral guide plate is arranged at the center inside the inner layer pipe. In addition, through the three-layer structure, all layers play different roles, the overall performance of the device is improved, the situation that local flow velocity is too high or airflow dead angles exist is avoided, the transmission efficiency and uniformity of phosphoric acid tail gas in the pipeline are improved, and the service life of the phosphoric acid tail gas pipeline is prolonged. The tail gas purification device can be used for providing better conditions for subsequent treatment links, meanwhile, different filtering parts can be flexibly mounted and dismounted, and the corresponding filtering parts can be replaced or adjusted in time according to the change of actual tail gas components, content and purification effect.

The utility model relates to the field of blister part processing, and discloses a blister part clamping device with an air cooling function, which comprises a first mounting plate, a first hydraulic cylinder is mounted at the top end of the first mounting plate, a support frame is mounted at the output end of the first hydraulic cylinder, an adjusting seat is movably connected in the support frame, and the adjusting seat is movably connected with the first hydraulic cylinder. A second hydraulic cylinder is mounted on the left side of the adjusting seat, a mounting seat is mounted at the output end of the second hydraulic cylinder, a connecting rod is fixedly connected to the bottom end of the mounting seat, and a heat dissipation frame is mounted at the bottom end of the connecting rod. According to the blister part clamping device with the air cooling function, the suction efficiency can be improved through suction holes evenly formed in a vacuum suction cup, a heat dissipation frame can conduct preliminary cooling and heat dissipation on a blister part before clamping, and a first fan and a second fan on the heat dissipation frame are evenly distributed outside the vacuum suction cup; and before clamping, the first fan and the second fan can quickly cool the blister part, and the problem that heat dissipation clamping is inconvenient is solved.

The utility model relates to a vehicle-mounted ceiling screen support assembly formed by punching a galvanized steel sheet, which comprises a fixed support, an overturning component, a supporting component and a spring bolt component, the fixed support is made of the galvanized steel sheet formed by punching, a reinforcing structure is formed on the surface of the fixed support, and a screw hole is formed on the surface of the fixed support; the overturning assembly and the supporting assembly are symmetrically arranged on the two opposite sides of the screen. A side opening clamping structure is arranged on a shell of the overturning assembly and a shell of the supporting assembly, a vibration isolation sleeve is embedded in the clamping structure, a center through hole is formed in the vibration isolation sleeve, the vibration isolation sleeve is fixed to the screw hole through a step screw, and the outer diameter of the step face of the step screw is in interference fit with the inner diameter of the center through hole of the vibration isolation sleeve. According to the vehicle-mounted ceiling screen support assembly formed by stamping the galvanized steel sheet, the galvanized steel sheet formed by stamping is adopted as a core structure, all the components are optimally designed, and the effects that cost is reduced, structural strength is improved, vibration isolation and assembly are simplified, and installation adaptability is enhanced are achieved.

The present invention relates to a multi-directional precision positioning fixture for gear housing machining, comprising a multi-directional base and a modular fixture assembly disposed on the multi-directional base. This application achieves flexible installation and precise positioning of the clamping part on the multi-directional base by engaging the sub-base on the surface of the multi-directional base with the docking portion of the modular fixture assembly, combined with the adaptive design of the positioning block and positioning groove. This effectively eliminates clamping offset caused by workpiece geometric differences. The movable groove structure of the docking portion and the electrical connection design of the block-groove, through the integration of the sub-electrical connector and the female electrical connector, realize real-time linkage between the clamping action and external control equipment, thereby supporting dynamic adaptation of the fixture orientation in multi-process collaborative machining. Furthermore, when the operator needs to clamp parts in multiple directions, the clamping part can be installed on sub-bases in different directions, effectively adapting to different machining requirements.

The refrigeration equipment comprises a box body and a door body, the door body comprises a door body and a decoration plate assembly, the door body comprises vacuum glass, the decoration plate assembly is arranged on the side, away from the box body, of the door body, the decoration plate assembly comprises a door plate and a decoration strip, and the decoration strip is arranged on a projection plane perpendicular to the direction from the door body to the box body. The door plate and the decoration strip surround the vacuum glass, one side of the decoration strip is connected with the door plate through a connecting piece, and the other side of the decoration strip abuts against the vacuum glass. The decoration strip makes up various installation gaps, no matter what kind of errors are generated in the installation process, the decoration strip can fill the gaps through flexible adjustment, and therefore visual consistency of products in different installation environments is guaranteed, the attractiveness problem of a door body is remarkably solved, a more flexible installation mode is provided for a user, and the installation efficiency is improved. And the refrigeration equipment has higher competitiveness in the high-end market.

The utility model relates to the technical field of insulating ladders, in particular to an insulating ladder placing hanger for a thermal power plant, which comprises a base, at least two upright posts vertically arranged on the base, and a hanging mechanism fixed on the upright posts, the hanging mechanism comprises at least two groups of L-shaped hooks, a hinge shaft is arranged at the tail end of the short edge of each L-shaped hook, a plurality of mounting holes are formed in the stand column at equal intervals in the height direction, and the hinge shafts penetrate through the mounting holes and are connected with locking nuts through shaft end threads; the outer surface of the long edge of the L-shaped hook is coated with an anti-skid insulating layer with the thickness larger than or equal to 5 mm. The anti-skid insulating layer is a silicone rubber and epoxy resin composite layer. According to the insulation ladder hanger, through the design of adjustment, skid resistance, monitoring and insulation, the structure is adjustable, safety and stability are achieved, insulation is reliable, operation is convenient, the hanging requirements of different ladder types are met, and use safety and efficiency are improved.

The utility model discloses an anti-skidding pulley with an automatic locking function, and relates to a hoisting pulley device, in particular to an improvement of an anti-skidding, locking and anti-falling pulley structure. In order to achieve the purpose, according to the technical scheme, the sliding wheel comprises a supporting plate, a sliding wheel body, an intermediate shaft, a swing rod and an anti-skid locking mechanism, the sliding wheel body is installed in the middle of the supporting plate in a hinged mode through the intermediate shaft, and the intermediate shaft is fixedly connected to the middle of the sliding wheel body in an inserted mode and fixedly connected with the sliding wheel body. One end of the swing rod is connected to the middle shaft in a sleeved mode, the other end of the swing rod is connected to the anti-skid locking mechanism in a sleeved mode, the two ends of the anti-skid locking mechanism are clamped in the sliding grooves of the supporting plate respectively, and a baffle is arranged on the lower left side of the supporting plate. A cylindrical hole is formed in the middle of the middle shaft, and a cylindrical sliding block capable of freely sliding in the cylindrical hole is arranged in the cylindrical hole. Passive self-locking is achieved in a mechanical mode, risks caused by human errors are reduced, the device is particularly suitable for the scene without an external power source, and when a heavy object tends to fall due to accidents, the device can be automatically locked through a built-in ratchet and pawl mechanism, and the heavy object is prevented from falling.

This utility model relates to the field of flue gas sampling technology, specifically to a flue gas sampling device, including a fixed housing. One side of the fixed housing is connected to one end of a delivery pipeline, and the other end of the delivery pipeline is connected to a sampling component. A set of adjustable mounting components are connected to opposite upper and lower surfaces of the fixed housing. Each set of adjustable mounting components includes an electric telescopic rod, one end of which is perpendicularly connected to the fixed housing, and the other end is connected to a mounting frame. A set of hydraulic telescopic rods are connected to the left and right sides of each mounting frame. The hydraulic telescopic rods and the sampling component are located on the same side of the fixed housing. A rotating component is connected to the end of each hydraulic telescopic rod furthest from the mounting frame. The rotating component includes a connecting shaft parallel to the hydraulic telescopic rod, and the end of the connecting shaft furthest from the hydraulic telescopic rod is perpendicularly connected to a clamping arm. This utility model improves the ease of installation and adaptability of the device, enhances installation stability, and ensures the accuracy and continuity of flue gas sampling.

A communication engineering cable tray includes a cable tray, a hanging rod, a cable tray plate, a fastening plate, a locking rod, a lever, and a cover. The cable tray has connecting plates at both ends, and a screw passes through the connecting plates. The two ends of the screw are threadedly connected to fixing nuts. The upper part of the cable tray has a hanging tube, which is threadedly connected to the hanging rod. The upper end of the hanging rod has a mounting plate. The cable tray has an internal slide rail that adapts to the cable tray plate. The cable tray plate connects to the slide rail and slides within the slide rail. The cable tray is externally connected to a fastening plate, which has fastening rods on both sides. The cable tray has multiple external through holes on both sides, and the cable tray plate has internal through holes on both sides. The internal and external through holes adapt to the fastening rods, and the fastening rods pass through the external and internal through holes sequentially. The fastening rods are threadedly connected to fastening nuts.

The utility model relates to the technical field of robot equipment, and provides a humanoid foot plate assembly of a biped robot, which comprises a main body assembly, and the main body assembly comprises a foot plate, a heel shell, a front foot sole shell and a gravity sensor; the heel shell is mounted at the rear end of the top of the sole plate, the front sole shell is mounted at the front end of the top of the sole plate, and the gravity sensor is mounted in the heel shell; the maintenance assembly comprises a placement groove, an insertion frame, a rotating gear and a threaded rod; the placing groove is formed in the foot bottom plate, the inserting frame is fixedly connected to the inner bottom wall of the foot bottom plate, and the rotating gear is rotationally connected to the inner side wall of the foot bottom plate. According to the utility model, through the auxiliary cooperation between the tooth block and the insertion frame, the heel shell can be pulled out upwards, and the two groups of screw blocks release the clamping of one end of the gravity sensor at the same time, so that a worker can be assisted to quickly disassemble, assemble and take the gravity sensor, and a more abundant maintenance disassembly and assembly space is provided for the worker.

The utility model provides an outdoor wind -resistant tent, including tent body, fills water ballast sac, fills water ballast sac setting at the bottom of tent body outside, and fills water ballast sac with tent between is provided with detachable connecting mechanism, fills water ballast sac includes sac body, is provided with fills water mouth on the sac body, and the seal cover is detachably connected on fills water mouth, one end of sac body is provided with pressure relief protection device, in the utility model, fills water mouth to fill water in water ballast sac, fills water ballast sac can significantly increase the overall weight of tent after filling water, and the pulling force of strong wind to tent is offset through the gravity effect of water ballast sac, avoids the tent to be blown away by strong wind when being idle, reduces the equipment damage and environmental safety risk. Fills water ballast sac distribution in the bottom of tent outside, can form the stable support surface of horizontal direction, forms the higher grip between tent and bottom surface through water ballast sac, and the tent is not prone to lateral transverse when the tent is subjected to crosswind effect.

The utility model relates to the technical field of motor supports, in particular to a compact motor mounting support, which comprises a mounting rack and a mounting mechanism, and the mounting rack is cylindrical. According to the utility model, the installation mechanism is arranged, the installation rack is cylindrical and is mainly used for providing installation support for the motor, the through hole arranged in the installation rack is convenient for the insertion installation of the motor shaft, the installation stability can be ensured, and the carbon brush box support arranged outside the installation rack is the foundation of the whole installation structure. During use, the mounting table and the carbon brush box support can be limited and fixed by adjusting the position of the threaded rod and utilizing the locking nut, so that the mounting table can be more flexibly mounted in a complicated or space-limited application scene, and the mounting efficiency is improved; and the mounting table can adapt to the mounting requirements of motors with different sizes and shapes, and is more stable and reliable to mount by matching with limiting insertion between the clamping boss and the insertion block and the clamping groove.

This invention relates to the field of microbial treatment technology and discloses a quality testing device for sugarcane nitrogen-fixing bacteria agents. The device includes a workbench, an incubator fixedly mounted on the upper side of the workbench, a partition fixedly mounted inside the incubator, a temperature control component inside the incubator, a connecting seat fixedly connected to the upper side of the incubator, a humidity regulating component inside the connecting seat, a base fixedly mounted on the right side of the incubator, an electric telescopic rod fixedly mounted on the upper side of the base, a fixed seat fixedly connected to the telescopic end of the electric telescopic rod, and a housing fixedly mounted on the front side of the fixed seat. By adopting the technical solution of setting a temperature control component and a humidity regulating component inside the incubator, the device achieves the technical effect of real-time monitoring and precise adjustment of the temperature and humidity inside the incubator, solving the shortcomings of large temperature and humidity fluctuations, low adjustment efficiency, and easy impact on the accuracy of sugarcane nitrogen-fixing bacteria agent detection.

The utility model relates to a self-rotating pig for oil and natural gas pipeline, belong to pipeline cleaning technical field, the pig includes box, support walking mechanism and install the leather bowl of box outer wall, the box is hollow body, is equipped with the battery in the box and is installed with the drive motor for providing power through the support frame, the output shaft of drive motor and the central axis of box coincide, the first output shaft of drive motor can detachable connection support walking mechanism, support walking mechanism includes with the first output shaft connection first pivot and installs the spiral plate on the first pivot, and the spiral plate outer edge evenly is equipped with the gyro wheel that agrees with the pipeline inner wall. The utility model adopts one motor to match the spiral plate with gyro wheel to can complete the self-rotation advance of pig, greatly alleviates the counterweight, simple structure, convenient to use.

The utility model relates to the technical field of mixing pile construction, disclose a kind of mixing pile mud splashing prevention device including shielding subassembly and base;Shielding subassembly includes multiple shielding monomers, rotationally connected between adjacent shielding monomers, the shielding monomer for being connected to mixing pile drill rod in multiple shielding monomers one end, the shielding monomer connected to base in multiple shielding monomers other end.The utility model shielding monomer rotationally connected and two ends are connected drill rod and base, can closely adhere drill rod lifting track, angle is flexibly adjusted to reduce mud overflow, improve mud efficiency;Modular structure adapts to different drill rod specifications and construction conditions, solve the problem of traditional mudguard adaptation difference;Portable design and dismounting are convenient, can save construction manpower time cost, improve construction efficiency.

This utility model relates to the field of rainwater chain technology, and in particular to a non-splashing rainwater chain structure, including a lotus-shaped outer liner, an inner liner cylinder inside the lotus-shaped outer liner, a first mounting hole, a second mounting hole and a hollow design on the outer surface of the inner liner cylinder, a first connecting strip at the top of the inner liner cylinder, a first connecting chain inside the first connecting strip, and an inner substrate seat at the bottom of the lotus-shaped outer liner. The bottom of the inner liner cylinder is fixedly connected to the inner substrate seat. By using the lotus-shaped outer liner, the inner liner cylinder, the hollow design and the inner substrate seat in combination, the directional guidance of rainwater and the suppression of splashing are achieved. The bottom of the inner liner cylinder is connected to the inner substrate seat, and the inner liner cylinder is located inside the lotus-shaped outer liner. The hollow design ensures the structural strength while increasing the permeability of rainwater, avoiding the increase in pressure caused by water accumulation, and has aesthetic appeal and reduces the overall weight. The inner substrate seat plays a stable supporting role, ensuring the stability and durability of the entire rainwater chain structure.

The utility model relates to the technical field of combined sound equipment, and discloses modularized detachable multichannel combined sound equipment, which comprises a bottom plate, the top of the bottom plate is fixedly connected with a fixed support, the top of the fixed support is fixedly connected with a supporting frame, and the bottom plate is fixedly connected with the supporting frame. The interior of the supporting frame is slidably connected with a plurality of sound boxes, the periphery of the front side of each sound box is fixedly connected with a pull plate, the bottom of the rear side of each sound box is fixedly connected with two audio interfaces, the interior of the rear side of the supporting frame is fixedly connected with two first limiting plates, and the inner wall of the rear side of the supporting frame is provided with two flat cable holes. The rear side of the fixed support is fixedly connected with an audio adapter. According to the utility model, flexible disassembly and installation of the multichannel combined sound equipment are realized, maintenance and adjustment are convenient, durability and reliability of the equipment are improved, and the service life of the equipment is prolonged.

The application relates to the technical field of wheel hubs, in particular to a vehicle wheel hub, which comprises a hub component group, the outer part of the hub component group is provided with a spoke component group, a quick-connection component group and an adjustable rim component group from near to far. Through the design of the quick-connection component group and the adjustable rim component group, the damaged spoke component group can be quickly replaced without disassembling the wheel hub, and through the cooperation of the outer moving plate, the clamping block and the inserting rod, the dismounting and mounting efficiency of the rim component is further improved.

The utility model discloses a kind of practical wall fixing devices on medical ship, it is related to medical ship wall fixing device technical field, including wallboard body and hole wall fixing profile, one side of hole wall fixing profile is contacted with the side of wallboard body, and hole wall fixing profile is threadedly connected with wallboard body, hole wall fixing profile is embedded with multiple fixed plates, profile cover plate is clamped on hole wall fixing profile, and the outer wall of fixed plate is respectively contacted with the outer wall of profile cover plate and the inner wall of hole wall fixing profile.The utility model is driven between hole wall fixing profile and wallboard body by multiple first fastening bolts and rounded rectangular hole to carry out horizontal or vertical connection, form long strip multi-point fixing, carry out multi-point stress, effectively dispersed the pressure of wall fixing device to wallboard body, improve the strength and stability of overall structure, can better resist the jolt and sway of hospital ship sailing.

The utility model discloses an LED display screen module capable of being rapidly assembled. The LED display screen module capable of being rapidly assembled comprises a display screen and a heat dissipation piece. The display screen is provided with a fixing plate and a mounting seat, the fixing plate is provided with a first magnetic attraction piece, a second magnetic attraction piece and a mounting hole mounting bolt, and the heat dissipation piece is provided with a heat dissipation opening and a heat dissipation pipeline; the fixing plates are located on the two sides of the display screen, the mounting bases are located on the rear side wall of the display screen and close to the four corners, the first magnetic attraction piece and the second magnetic attraction piece are located on the fixing plates on the different sides respectively, and the mounting hole is located in the center of the fixing plate on one side of the first magnetic attraction piece. And the mounting bolt is positioned at the central position of the fixing plate on one side of the second magnetic attraction piece. The structure design is reasonable, and the magnetic attraction piece and the installation assembly are convenient to quickly assemble; relevant parts of the mounting seat are combined and mounted flexibly; the heat dissipation piece and the heat dissipation structure effectively dissipate heat; the data interface is arranged on the side wall of the heat dissipation piece, and data transmission and wiring are facilitated.

The utility model discloses a long-time recording law enforcement recorder with a high-capacity battery, which comprises a law enforcement recorder main body, camera modules are rotatably arranged on two sides of the law enforcement recorder main body, and the camera modules are used for shooting; the power supply module is arranged in the battery cavity in the back surface of the law enforcement recorder main body, and the power supply module is used for supplying power to the law enforcement recorder main body; the power supply module is also provided with a standby battery, and the power is supplied to the law enforcement recorder through the standby battery when the power supply module is short of power. Rapid connection between the power supply module and the main body is realized through the connection slot and the connection insertion block, so that the battery is convenient to disassemble and replace; the design of the standby groove enables the standby battery to be flexibly mounted and dismounted and is convenient to use.

This utility model belongs to the technical field of fitness equipment, and specifically relates to a rhythmic device and a treadmill. The rhythmic device includes a connecting seat and a support seat that are movably connected. The connecting seat is provided with a fixing component for connecting to other objects. The support seat is provided with a roller for supporting the support seat. An eccentric shaft is provided on the roller. The roller is rotatably mounted on the support seat through the eccentric shaft. During the rotation of the roller, the distance between the eccentric shaft and the lower end of the roller changes, causing the support seat and the connecting seat to move relative to each other, thereby causing the support seat to rise and fall. The purpose of this utility model is to provide a rhythmic device with a simple structure and convenient production and assembly.

This utility model discloses a modular shower arm facility, including two shower arms symmetrically arranged on the left and right sides; a housing, with the two shower arms located on the left and right sides of the housing respectively; two symmetrically arranged rotating shaft assemblies installed inside the housing, with their outer ends extending laterally outward from the housing and connecting to the shower arm on the same side, each rotating shaft assembly having a water supply channel inside, the outlet end of the water supply channel connecting to the shower arm; a water path switching component installed inside the housing, having a water inlet and two symmetrically arranged water outlets, the outlets connecting to the water supply channel; and a support component, one end connected to the housing. The modular shower arm facility of this invention, based on the housing, integrates the shower arms, rotating shaft assemblies, water path switching component, and support component into a modular unit, utilizing the support component to achieve rapid installation and connection. It has the advantages of simple and flexible installation, and completely eliminates the dependence on specific chair back structures in terms of installation requirements.

The utility model discloses a kind of power line winding mechanism and line winder of bamboo cutting scissors, the power line winding mechanism of bamboo cutting scissors includes mounting bracket, winding assembly, wire arrangement component and locking assembly installed on mounting bracket;Winding assembly and winding assembly are sequentially installed on mounting bracket, winding assembly includes winding limiting piece;Locking assembly controls the rotation state of winding limiting piece by mechanical limit, to realize the locking state and the unlocking state of switching winding mechanism.The utility model realizes efficient power line management by modular design: winding assembly orderly receives and releases wire, wire arrangement component prevents winding, locking assembly accurately controls the rotation state of winding assembly;In locking state, guarantee transportation stability, when unlocking, quick collection and release improve efficiency.The utility model compact structure is light and handy, adapts complex terrain, prolongs power line coverage range, reduces equipment carrying frequency, significantly improves the applicability and practicality of electric bamboo cutting scissors equipment in forestry operation.

The utility model discloses an inflator for inflating product belongs to inflating device technical field, and it includes the cylinder, the inflator and the piston structure. Its innovation lies in setting up the oil absorption cotton structure, and this oil absorption cotton can be installed in two positions: one is on the piston structure, and specifically can be set in the positioning groove of piston or the annular groove specially, is located the rubber ring inside, two is the bottom of the cylinder. The piston structure includes the support disc with the positioning groove and the annular groove and the rubber ring with the inverted L type section. The oil absorption cotton can be annular or circular, and can be provided with tail strip to facilitate replacement. The utility model prolongs the service life of inflator, improves the inflating cleanliness through the effective adsorption and slow -release lubricating oil of oil absorption cotton, reduces the friction wear and oil spill, is especially suitable for the product such as inflating toy.

The utility model relates to pipe gallery gas detection technical field especially is arrayed optical fiber gas sensor protection device for pipe gallery, device includes first optical cable locking subassembly, optical fiber device chamber subassembly, gas sensing chamber subassembly and second optical cable locking subassembly, wherein, first optical cable locking subassembly is connected with optical fiber device chamber subassembly respectively, and optical fiber device chamber subassembly is fixedly installed with optical fiber device, gas sensing chamber subassembly is fixedly installed with optical fiber gas sensing device, second optical cable locking subassembly is connected and fixed with gas sensing chamber subassembly respectively, a kind of multi-joint type optical fiber gas sensor structure of the utility model has multiple optical device installation chamber, and the flexible installation and effective protection of optical fiber gas sensor each device are easy.