68results about How to "Distance control" patented technology

The invention relates to a unmanned aerial vehicle (UAV) flight path planning method based on a competitive deep learning network. The method comprises the following steps: carrying out feature information extraction on real-time pictures photographed by a camera, so that a column of feature vectors are obtained; calculating each feature vector to obtain a state function value and a superiority function value, and combining the two values on a combination layer to obtain a state action function value; using the state action function value as an instant state action function value which cooperates with a target value network in construction of a loss function of the network and prediction of a next state, so that total rewards jointly formed by internal rewards and external rewards are obtained; carrying out depth-of-field prediction on the real-time pictures; carrying out calculation to obtain another state action function value; and calculating the gradient of the loss function and carrying out back propagation of the gradient to a current value network for network parameter updating.

The invention relates to diffracted light image changing high speed laser write through method. It includes the following steps: do electrostatic image for incidence parallel light reaches beam-splitting element though diaphragm; gathering the beam-slitting light to produce interference fringe optical field; orderly photoengraving interference fringe with different trend to form micro light grating image. Its features are that it is adopted solid state ultraviolet laser to produce laser beam; and it is used TTL signal control to realize laser beam pulse output; the two sets of the laser beam have zero optical path difference; optical system and photoresist dry plate are moved on two one dimension directions which are vertical with each other; photolithography is adopted continual motion, continual pulse exposing type. Thus the invention realizes high speed laser write through photolithography system to make diffracted light changing image original edition manufacturing shorten between many hours to seventeen hours. It really enters industrialization application period, and is the important breakthrough of digitalization advanced manufacturing technique in laser holographic technique field.

The invention discloses a logistics distribution path optimization method, a storage medium and computer equipment, and relates to the technical field of logistics distribution. The method is used based on a TMS system and comprises the steps: screening waybill data from a waybill pool of the TMS system; reflecting the longitude and latitude coordinate points of the shipping place and the longitude and latitude coordinate points of the delivery destination in the waybill data on a map; calculating the distance between the delivery destination and the delivery place; finding out a delivery destination with the largest distance; and calculating the distances between other delivery destinations and the farthest delivery destination, drawing a circle by taking the farthest delivery destinationas the center of the circle and R as the radius, adding other delivery destinations falling into the circle into the delivery train number, and obtaining the loading capacity according to the added delivery destination so as to determine the delivery train type. According to the method, the vehicle path scheduling is reasonably planned through the computer according to the set rule, the scheduling rationality can be improved, the distribution path can be reasonably planned, and the transportation cost can be reduced.

The invention relates to a torsional strength testing torsion testing machine, which comprises a rack and an operation table, wherein the rack is provided with the operation table and a guide rail, the guide rail is provided with a test operation table, the test operation table is provided with an operation rod and an emergency stop component, an opening / closing rod is arranged beside the operation rod, positioning blocks are arranged between the test operation table and the guide rail and are positioned on the bottom portion of the test operation table, and the positioning block is made from an alloy steel material. According to the present invention, the top portion of the guide rail is provided with the baffle, such that the distance between the clamping jaw and the clamping member can be well controlled, the impact of the clamping jaw on the clamping member due to the over high force applying is prevented, the use safety of the clamping jaw and the clamping member is ensured, and the damage on the clamping jaw and the clamping member is avoided; and the hand wheel drives the screw rod to control the movement of the clamping jaw, such that the movement speed is uniform, and the torsional strength testing result of the electric cable is accurate.

The invention relates to a card reader for a high-frequency wireless smart card, which comprises an effective radio-frequency transceiving module and a shell and is provided with a radio-frequency signal shielding device and a radio-frequency interference module, wherein the radio-frequency signal shielding device is used for restricting the communication zone of the radio-frequency transceiving module and preventing radio-frequency interference signals from interfering with the communication zone; the radio-frequency interference module can interfere with radio-frequency signals of the same and adjacent frequency ranges; the radio-frequency signal shielding device is provided with a sensing window which faces the card reading surface of the card reader; the radio-frequency transceiving module is arranged in the shielding device; and the radio-frequency interference module is arranged in the shielding device. The invention has the advantages of simple structure, stable and reliable operation and the like, is easy to implement, can satisfy demands caused by unending changes of various terminals, effectively solves the problem of variable card swiping distance caused by different terminals, effectively control the distance, and can restrict the card swiping direction and region. The invention can be used for electronic wallets, mobile phone access control, mobile phone payment and the like.

The invention provides a position identification system and a posture identification method using the same. A conventional mode that digital photography is needed to use is eliminated by the posture identification method, and a mode of infrared ray detection is adopted. In order to achieve track accuracy in identifying an external object, the scheme at least needs two infrared ray light-emitting diodes. When the first infrared ray light-emitting diode emits infrared rays, the other infrared ray light-emitting diode receives the infrared rays. Distance between the external object and the infrared ray light-emitting diodes used for detection is determined via emitting infrared light with different energy. Besides, time-sharing multiplexing is adopted so that distance of the external object to the aforementioned at least two infrared ray light-emitting diodes respectively can be mastered and thus the position of the external object can be mastered.

The invention discloses a packaging device for spinning yarns. When work of packaging yarn ball single bodies is carried out, by means of the cooperation effect of an arranged placing belt, an inverted-T-shaped sliding groove and an inverted-T-shaped sliding block, the distance among the yarn ball single bodies can be well controlled, by means of fixedly clamping of arranged positioning columns and positioning circular grooves, the distance among the yarn ball single bodies is kept the same, moreover, the distance among the yarn ball single bodies can be controlled in a ball manner, then the package work can be carried out according to the actual requirement of package production and processing, and the quality of the package work is ensured. According to the device, by means of arranged sleeve columns and positioning mechanisms, the package processing quality of the device can be ensured, normal operation of a package processing and production line can be ensured, the processing and production quality is ensured, and economic benefits of the work are ensured.

The invention relates to the field of wall surface decoration methods, in particular to a building inner wall surface decoration method which comprises the following steps: S1, cleaning a wall surface; s2, putty is scraped and coated through a putty scrape coating machine; s3, polishing the putty layer; s4, paint spraying; and S5, flatness detection is conducted on the wall surface, and finishing is conducted again. According to the putty scraping machine, the putty scraping machine is used for scraping putty on the wall surface, force application is more uniform during putty scraping, the speed is high, and therefore the construction efficiency and the construction quality are improved.

The invention relates to a bionic fish, in particular to a bionic fish capable of picking up an article underwater. The invention aims at solving the technical problem of providing the bionic fish capable of picking up the article underwater, with the advantages of flexible operation, convenience in article pickup and short in time consumption. For solving the technical problem, the invention provides the bionic fish capable of picking up the article underwater. The bionic fish capable of picking up the article underwater comprises a first electromagnetic one-way valve, a first sliding rail, electric wheels, a stay wire, clamping plates, first sliding blocks, a first spring, a base, a second sliding rail, an electric push rod, a support, a fixing plate, a piston, a cylinder body, a water inlet pipe, a second electromagnetic one-way valve, a second spring, a wedge block, second sliding blocks, a contact roller, a fixing block, a first push rod, a water outlet pipe and a bionic fish body; the base is arranged in the bionic fish body; the second sliding rail, the electric push rod and the support are sequentially arranged at the top of the base from left to right; the second sliding block is arranged on the second sliding rail. The bionic fish disclosed by the invention realizes the effects of flexible operation, convenience in article pickup and short in time consumption.

The invention relates to a method and a device for acquiring a car distance, a storage medium and a car. The method is applied to the target car, and the target car is any one car in multiple automatic drive cars except for a first car. The method comprises the steps of acquiring a first driving parameter of the target car at a target moment; acquiring a second driving parameter of a front car ofthe target car in the multiple automatic drive cars at the target moment; acquiring a first car distance between the target car and each front car at the target moment; and determining a target car distance between the target car and the adjacent front car according to the first driving parameter, the second driving parameter and the first car distance. According to the method and the device for acquiring the car distance, the storage medium and the car provided by the invention, when determining the target car distance, second driving parameters of the all front cars before the target car arecombined, so that the problem that the target car generates response lag on the aspect of car distance control can be avoided, and the car distance between each two adjacent cars in the multiple automatic drive cars can be well controlled.

The invention discloses a chain wheel device of an all terrain vehicle. The chain wheel device comprises a vertical plate, a slide groove, a driving groove and scale lines are formed in the vertical plate, a driving case is arranged on the front face of the vertical plate, a T-shaped sliding block and a driving shaft are arranged on the back face of the driving case, a main chain wheel body is arranged on the driving shaft, and an auxiliary chain wheel body is connected to the main chain wheel body through a chain. A first fixing block is arranged on the vertical plate, a second fixing block is arranged below the vertical plate, a main shell is arranged on the back face of the vertical plate, the first fixing block is fixed to the main shell through a first bolt, the second fixing block isfixed to the main shell through a second bolt, an auxiliary shell is arranged out of the auxiliary chain wheel body, locking hooks are arranged at the upper end and the lower end of the main shell correspondingly, and shell cylinders are hinged to the upper end and the lower end of the auxiliary shell correspondingly. A cross rod and a tension spring are arranged in the shell cylinder, a round ring is arranged on the cross rod, a vertical rod is arranged on the cross rod, and a side lug is arranged on the vertical plate. According to the chain wheel device of the all terrain vehicle, adjusting can be conducted without the need of using a tool manually, foreign matter can be prevented from entering the chain wheel, and accurate adjusting can be conducted effectively.

The invention relates to the technical field of forged workpieces, and discloses a forged workpiece fixing device. The forged workpiece fixing device comprises supporting columns and a fixing mechanism, wherein the fixing mechanism comprises fixing blocks I, fixing blocks II, a movable plate, a lead screw, a connecting rod, a fixing rod, a spring and a movable rod. According to the forged workpiece fixing mechanism disclosed by the invention, the fixing mechanism is arranged, and a distance between the two fixing blocks II is regulated by utilizing the movable rod, the spring, a long slot andthe fixing rod in the fixing mechanism; when a cylindrical forged piece is forged, a middle formation distance of the cylindrical forged piece is calculated; the fixing blocks II are extruded by the middle part; under the action of the spring, the fixing blocks II are extruded into a recycling slot, and the forged piece is fixed by the fixing blocks I, so that while performing forging, the fixingdevice is not damaged as a result of deformation of the cylindrical forged part, and the problems that the existing fixing device is damaged as the top is forged and the middle position is widened when the existing fixing device fixes the cylindrical forged part are solved.

The invention discloses a deep brain adjustable endoscope channel system and belongs to the technical field of medical auxiliary instruments, the deep brain adjustable endoscope channel system comprises a base cylinder and a tissue expansion winding drum, the tissue expansion winding drum is curled into a cylinder shape and then penetrates through an inner cavity of the base cylinder, and an inner diameter adjusting mechanism is arranged in the middle of the base cylinder; and the tissue expansion winding drum is arranged on the base cylinder and matched with the inner diameter adjusting mechanism, two fixing clamping strips are symmetrically arranged on the two sides of the base cylinder, the base cylinder, the tissue expansion winding drum and the inner diameter adjusting mechanism are arranged, the inner diameter adjusting mechanism can be expanded and contracted, and therefore the tissue expansion winding drum which is curled into a cylinder shape is driven to be expanded and contracted. By means of the structure, the pipe diameter of the tissue expansion winding drum can be adjusted according to operation requirements, a deep brain prying space can be opened for an operator, the exposure area can be directly increased, a good view and a wider operation space are provided for a doctor in an operation under the more stable and safer condition, and the operation becomes safer and more convenient.

The invention discloses an automatic welding device of a character welding machine. The automatic welding device of the character welding machine comprises a character welding machine main body, a welding gun and a support frame, wherein the character welding machine main body comprises a main body upper part and a main body lower part; the character welding machine main body and a rotation motor are arranged on the support frame; the rotation motor is connected to the main body lower part, and connected with the main body upper part and used for driving the rotation of the main body upper part; a welding gun fixing adjustment seat and a welding gun forward-backward drive motor are provided; a welding gun movement guide rail horizontally penetrates in the main body upper part; a welding gun movement slide block is arranged on the welding gun movement guide rail; the welding gun forward-backward drive motor is connected with the welding gun movement slide block and used for driving the forward-backward movement of the welding gun movement slide block in a horizontal direction; the main body upper part is provided with a welding port, a sensor and a welding gun forward-backward movement limit switch; the main body lower part is provided with a welding gun rotation limit switch; an inverted-U-shaped welding port protection porcelain mouth is arranged at the welding port; and a location column used for locating a welded object is arranged at the welding port and at the front end of the welding gun. The automatic welding device of the character welding machine, which is disclosed by the invention, is simple in structure, capable of realizing the forward-backward movement of the welding gun along the direction of the movement guide rail, and the 360-degree horizontal rotation of the welding gun, long in service life, and high in welding efficiency.

The invention belongs to the seismic exploration technical field and relates to an anti-loosening spherical multi-beam transducer. The anti-loosening spherical multi-beam transducer comprises a shell, a top cover, a sleeve and an electrode main body; the sleeve sleeves the upper part of the electrode main body; clamping positions are arranged in the shell; the sleeve and the electrode main body are movably arranged at the clamping positions of the shell; the sleeve and the shell enclose a discharge cavity; the discharge cavity is filled with electric conduction liquid; the lower part of the electrode main body is arranged in the electric conduction liquid; the shell is fixedly connected with the upper cover; a buffer cavity is formed between the sleeve and the upper cover; and adjustment components are arranged in the buffer cavity. With the anti-loosening spherical multi-beam transducer of the invention adopted, transduction conditions are controllable, so that test comparison can be facilitated; the frequency of vibration waves can be adjusted, so that different geological conditions and exploration requirements can be satisfied; the position adjusting assemblies are designed, so that control on the distance between discharge electrodes can be realized, and comparative analysis and effective selection of corona and arc discharge in a test can be facilitated, and the flexibility of field exploration adjustment can be improved.

The invention provides a blanking device of filter bag installation pipe welding equipment in dust removal equipment, and belongs to the technical field of machines. The technical problem that a blanking device in filter bag installation pipe welding equipment in dust removal equipment in the prior art cannot well control the distance between steel rings is solved. The blanking device of the filter bag installation pipe welding equipment in the dust removal equipment comprises a base and is characterized by comprising a supporting frame, the supporting frame is fixedly arranged on one side of the base, a platform is fixedly arranged on the supporting frame, a plurality of parallel guide sliding rails are fixedly arranged on the platform, an infrared distance sensor is fixedly arranged at the ends of the guide sliding rails, a sliding table is arranged on guide sliding rails, a plurality of supporting rods are fixed to one side of the sliding table, and a clamping mechanism used for clamping welded products is connected to the supporting rods. The blanking device has the advantage of accurately controlling the distance between the welding steel rings.

The invention discloses an automatic orbit transfer classifying device in accordance with thickness of panels and relates to the technical field of panel processing equipment. The automatic orbit transfer classifying device comprises a sliding mechanism, a mounting seat, a clamping mechanism and an orbit transfer mechanism. Connection of each group of outer ring and rotating shaft is pushed according to a descending distance of a panel clamped by a clamping plate to rotate to control movement of a rotating bar so as to drive a resisting sheet to be separated from a slide rail, so that the movable distance of the slide rail is controlled. Moreover, when one group of outer ring and rotating shaft control the resisting sheet to be separated from the slide rail, the outer ring and the rotatingshaft of the group will be separated automatically through a reset assembly, so that the outer rings in upper and lower positions do not affect each other, and the slidable distance of the slide railis controlled effectively in multiple sections, and thus, if the thickness of the panels clamped by the clamping plate is equal, the moving distance of the clamping mechanism is equal, too. Panels ofdifferent thickness can be distinguished according to the movable distance of the clamping mechanism and the panels are classified, so that a conclusion that whether the panels of other thickness arequalified or not can be obtained by only measuring one panel, and therefore, the measuring efficiency is improved greatly.

The invention discloses a portable fishing toolbox. The toolbox comprises wheels, fixing pads and a spring. A fixing seat is arranged above each wheel, and a box body is connected above the fixing seats. A handle is fixed between the fixing pads, and the fixing pads are located in the middle of the box body. The outside of the box body is connected with a box cover, the top of the box cover is provided with a seat cushion, the inside of the spring is equipped with a pull rod, and the spring is located below the middle of the box body. The middle of the pull rod is provided with a fixed rod, and the inside of the box body is provided with support rods. A movable frame is installed between the support rods. Pin rolls are installed inside the front end and the rear end of each support rod. Rotating shafts are installed in the middles of the movable frame, a placing plate is arranged outside the movable frame, and two sides of the placing plate are respectively provided with a sliding slot. The end portions of the movable frame are in sliding connection with the sliding slots. The front end of the placing plate is provided with a flap plate, and locking pieces are fixed on two sides ofthe flap plate, and a placing sleeve is arranged inside the placing plate.

A laser marking machine comprises a product conveying track and a laser device located above the product conveying track; the laser device is mounted on a longitudinal driving device; the longitudinaldriving device is mounted on a transverse driving device; the moving direction of the longitudinal driving device driven by the transverse driving device is identical with that of products conveyed by the product conveying track; and the product conveying track has the adjustable width. During operation, the product conveying track is adjusted to the proper size to adapt to the size of products,and the products are blocked by a lifting type blocking device and positioned by a positioning device when advancing to the predetermined position along the product conveying track; longitudinal and transverse positions of the laser device are adjusted under driving of the transverse driving device and the longitudinal driving device, the laser device is aligned to the products vertically under assistance of an industrial camera, and laser marking is performed on the products by the laser device.

The invention discloses a quenching system and method of an automobile accessory and relates to the technical field of quenching. The quenching system of the automobile accessory comprises a base, anextending and retracting mechanism, a material falling hopper, a flame spraying heating mechanism, a heat preservation conveying mechanism and a quenching box. The flame spraying heating mechanism isprovided with a material opening, a heating space, an annular gear, a power device, a bevel gear, a flame spraying column, a connection block, a spring, an electromagnetic sheet and a threaded cylinder. According to the quenching system, the annular gear drives the bevel gear to rotate, the flame spraying column is driven to rotate in and rotate out in the threaded cylinder so that the distance between the flame spraying column and the connection rod is controlled; when the distance between the flame spraying column and the connection rod is controlled, the manners that the electromagnetic sheet attracts the connection block and the spring resets the connection block can be adopted to enable the flame spraying column to be disengaged from and connected with the bevel gear at any time, andthen the adjustment of rotating in and rotating out a part or the whole of the flame spraying column according to the shape of the connection rod can be freely achieved; and in this way, the connection rod can obtain a uniform appropriate quenching layer in the heating process, and the physical performance of the connection rod finished product is improved.

The invention relates to and discloses a rapid veneer grooving device and an application method, and relates to the field of architectural decoration. The rapid veneer grooving device comprises a tool bit used for loading a tool, a motor used for driving the tool bit to rotate, and a motor shaft used for connecting the tool bit and the motor and driving the tool bit to rotate when the motor rotates. The rapid veneer grooving device further comprises a prismatic tool arranged on the surface of the tool bit and used for forming a circular groove in the veneer, a trapezoidal tool sliding in the tool bit and used for widening the circular groove formed in the prismatic tool into a trapezoidal groove, and a connecting rod used for pushing the trapezoidal tool to slide in the tool bit. According to the rapid veneer grooving device and the application method provided by the invention, the motor drives the motor shaft to rotate so as to drive the tool bit to rotate, the prismatic tool arranged on the surface of the tool bit is provided with the circular groove in the back face of a veneer, after the circular groove is formed to a certain depth, the connecting rod is rotated, the trapezoidal tool arranged in the tool bit is pushed out of the tool bit through the connecting rod, and the trapezoidal tool widens the circular groove, so that a trapezoidal groove is formed in the veneer.

The invention relates to an electrostatic dust suppression device of a belt conveyor. The electrostatic dust suppression device comprises a metal barrel, a circulating fan, a rapping device fixed on the metal barrel (7) and a plurality of mutually connected cathode electrodes (3) distributed on different parts in a sealed cavity, wherein the metal barrel covers the upper portion of a belt (8) and forms the sealed cavity together with a belt conveying frame (1). High voltage is applied between the cathode electrodes and the metal barrel (7) serving as an anode and used for electrostatic adsorption of raised dust. The circulating fan (5) is used for disturbing dust-containing air flow in the sealed cavity. The rapping device is used for dropping accumulated dust from the cathode electrodes (3) and the inner wall of the metal barrel (7). The cathode electrodes (3) are star-shaped. The invention also provides a method for controlling the electrostatic dust suppression device. The electrostatic dust suppression device has the advantages of being good in dust suppression effect and saving energy.

The invention provides a position identification system and a posture identification method using the same. A conventional mode that digital photography is needed to use is eliminated by the posture identification method, and a mode of infrared ray detection is adopted. In order to achieve track accuracy in identifying an external object, the scheme at least needs two infrared ray light-emitting diodes. When the first infrared ray light-emitting diode emits infrared rays, the other infrared ray light-emitting diode receives the infrared rays. Distance between the external object and the infrared ray light-emitting diodes used for detection is determined via emitting infrared light with different energy. Besides, time-sharing multiplexing is adopted so that distance of the external object to the aforementioned at least two infrared ray light-emitting diodes respectively can be mastered and thus the position of the external object can be mastered.

A mould for manufacturing an induction coil comprises a plurality of diameter adjusting discs which are sequentially arranged from top to bottom. Stand columns used for adjusting the turn pitch are arranged between the adjacent diameter adjusting discs, and the center points of the diameter adjusting discs and the center points of the stand columns are located on the same axis. According to the invention, based on working condition requirements, different numbers of control modules with different diameters are selected to manufacture the induction coil; the inner diameter of each turn of coil and the turn number of the coils are guaranteed through the diameter adjusting discs; the distance between coils is guaranteed through the stand columns; it is guaranteed that the coils are not deformed by pouring fine sand into the coils; the diameter of each turn of the induction coil prepared through the mould is within the controllable range; and the number of turns can be flexibly changed.

The invention discloses metal plate bending equipment for mechanical equipment machining. The metal plate bending equipment comprises a bottom plate, supporting rods, a top plate and a housing, wherein a mounting groove is formed in the center of the inner top wall of the housing, a driving motor is embedded in the mounting groove, a motor shaft is mounted at the bottom end of the driving motor, and a lead screw is connected to the bottom end of the motor shaft through a coupler. The metal plate bending equipment has the beneficial effects that when an inserting rod extends, a pressing rollerarranged at the bottom end of the inserting rod can move towards the bottom plate, and the pressing roller can extrude the middle of a metal plate between two vertical rods, so that the bending function is achieved; when connecting rods move, the connecting rods can drive moving blocks to move through second hinge seats, and the moving blocks can drive the vertical rods to move; and when the inserting rods extend, the vertical rods get close to each other, and force is applied to the two ends of the metal plate, so that it can be guaranteed that the distance between the two ends of the metal plate is effectively controlled, the bending of the metal plate can be assisted, and the bending efficiency is improved.

The invention discloses a combined type furrow opener capable of opening an omega-shaped bottom. The combined type furrow opener comprises a ground breaking shovel (1), a fertilizer guide trough (2) and a furrow opener (3), wherein the ground breaking shovel (1) is welded at the front lower end of the fertilizer guide trough (2); the back lower end of the fertilizer guide trough (2) is connected with the front end of the furrow opener (3); the furrow opener (3) consists of a left side plate (3a) and a right side plate (3b) which are bended inwards to form a shape with a conical front part and a rectangular back part; an upward bevel edge structure is arranged at the bottom edge of the front end of each of the left side plate and the right side plate; and a gap (6) is formed between the left side plate and the right side plate. The combined type furrow opener also comprises a seed guide trough (4), wherein the seed guide trough (4) is arranged in the middle of the furrow opener (3); and a seed guide spacer plate (5) divides the seed guide trough (4) into two parts. The combined type furrow opener is simple and reasonable in structure, and fertilizes when the ground breaking shovel breaks the ground; during furrowing, a part of soil covers on the applied fertilizer to form an omega-shaped furrow bottom, so that a certain distance is kept between the fertilizer and sugarcane seeds.

The invention discloses connecting equipment for direct sliding-in type fastening and connecting pipe fittings, and relates to the technical field of connecting pipe fittings. The connecting equipment comprises a bottom plate, a fastening assembly and a sliding assembly; and the fastening assembly is fixedly installed in the middle of the upper surface of the bottom plate, a pipeline connecting piece is installed in the fastening assembly, sliding assemblies are arranged on the two sides of the fastening assembly correspondingly, and pipe fittings are installed in the sliding assemblies. The connecting equipment is scientific and reasonable, and safe and convenient to use, the fastening assembly and the pipeline connecting piece is arranged, a fastening groove is formed in the pipeline connecting piece, the fastening groove is inclined, gas is introduced into a pneumatic groove through a gas conveying pipe, so that a pneumatic piston slides towards the two sides in the pneumatic groove, the pneumatic piston with magnetism drives a fastening magnetic block to slide towards the two ends, the inner wall of the pipeline connecting piece deforms, the pipeline connecting piece is fixedly connected with a pipeline, and convenience and rapidness are achieved.