60results about How to "Enables detachable connections" patented technology

The invention discloses a detachable guide wire comprising a guide rod and an adjusting rod. The middle of the adjusting rod is provided with a yarn passage wound into a ring, one end of the guide rod is provided with a connecting rod, the bottom end of the connecting rod is provided with a hollow accommodating cavity, a spring and stepped shafts arranged at two ends of the spring are arranged in the hollow accommodating cavity, small shafts of the stepped shafts face outwards and penetrate through holes in the hollow accommodating cavity to penetrate out of the hollow accommodating cavity, one end of the adjusting rod is externally connected with spinning equipment while the other end of the same is provided with an axial concave hole, the concave hole is matched with the connecting rod, a plurality of groups of through holes are arranged in the inner wall of the concave hole, each group of through holes include a plurality of pairs of opposite through holes, and when the connecting rod is embedded in the concave hole, the small shafts of the stepped shafts at two ends of the spring can be embedded in the opposite through holes in the inner wall of the concave hole. Detachable connection of the guide rod and the adjusting rod is realized, and the guide rod can be directly replaced when damaged without integral replacement.

The invention discloses a relay installation assembly which comprises a relay and an L-shaped installation plate. The relay comprises a body, an inverted U-shaped piece and a first clamping portion, the inverted U-shaped piece is fixed to the top of the body, and the first clamping portion is arranged on the inner wall of a top plate of the inverted U-shaped piece; the L-shaped installation plate comprises a transverse plate and a vertical plate, a second clamping portion is arranged on the transverse plate, the second clamping portion stretches into the inverted U-shaped piece, and the second clamping portion and the first clamping portion are clamped and fixed. According to the relay installation assembly, the first clamping portion is arranged on the relay, the L-shaped installation plate is arranged, and the second clamping portion is arranged on the L-shaped installation plate, so that the relay and the L-shaped installation plate are clamped and fixed, and detachable connection of the relay is achieved. Accordingly, when the relay is disassembled, other components on a vehicle do not need to be disassembled, and unnecessary losses caused by damage to other components are avoided.

The invention discloses an electronic jacquard card drive board which comprises a drive circuit board, a bistable needle selection electromagnetic valve, an FPC flexible circuit, a data transmission interface and at least two fixed pins, wherein an electromagnetic valve fixed seat and the drive circuit board are fixed together through the fixed pins; the flat cable terminal of the FPC flexible circuit is connected with the drive circuit board through an FPC connector; the FPC connector is welded on the drive circuit board; and the data transmission interface comprises an interface plug and an interface socket which are respectively vertically welded and fixed to the upper and lower surfaces of the drive circuit board. The bistable needle selection electromagnetic valve and the FPC flexible circuit on the electronic jacquard card drive board are fixed in a detachable way, and can be conveniently replaced when going wrong, thereby reducing the operation cost. The data transmission interface is convenient to disassemble and maintain, so that two electronic jacquard card drive boards can be connected together in a more stable way, thereby ensuring data transmission to be more accurate.

The invention discloses an electronic jacquard card needle-selection drive board which comprises a drive circuit board, a bistable needle selection electromagnetic valve, an FPC flexible circuit and at least two fixed pins, wherein an electromagnetic valve fixed seat for the bistable needle selection electromagnetic valve is provided with locating posts; the drive circuit board is provided with locating holes which cooperate with the locating posts; the electromagnetic valve fixed seat is provided with pin holes which cooperate with the fixed pins; the drive circuit board is provided with fixing holes which cooperate with the fixed pins and the pin holes; the electromagnetic valve fixed seat and the drive circuit board are fixed together through the fixed pins; the FPC flexible circuit comprises a flat cable terminal and an FPC connector; the FPC connector is welded on the drive circuit board; and the flat cable terminal cooperates with the slot of the FPC connector. When the bistable needle-selection electromagnetic valve and the FPC flexible circuit on the electronic jacquard card needle-selection drive board go wrong, a customer can conveniently replace bistable needle-selection electromagnetic valve and the FPC flexible circuit, thus the invention saves the cost and does not affect the regular production.

The invention discloses an embedded-column formwork device and a method for constructing a fabricated building embedded column by the same, and relates to the technical field of prefabrication engineering, aiming to solve the problems of proneness to formwork explosion and increased correction difficulty in surface plates of existing embedded columns. The embedded-column formwork device comprisesat least one embedded-column surface plate, at least one exterior-wall formwork and a plurality of formwork-explosion resisting components. The embedded-column surface plates are located on one side of two fabricated exterior walls which are arranged at an interval. The exterior-wall formworks are located on the other side of the fabricated exterior walls. The formwork-explosion resisting components are arranged along the height direction of the embedded-column surface plates at intervals. Each formwork-explosion resisting component comprises a reinforcing rod and a plurality of connectors. The reinforcing rods are arranged on the outer side of the embedded-column surface plates. One ends of the connectors penetrate the embedded-column surface plates and the reinforcing rods to be locked and fastened, and the other ends of the connectors penetrate the exterior-wall formworks to be locked and fastened. A to-be-poured region of the embedded column is formed by the embedded-column surfaceplates, the adjacent two fabricated exterior walls and the exterior-wall formworks in an encircling mode. Steel bars are tied in the to-be-poured region of the embedded column, and concrete is pouredon site. After the strength of the concrete meets design requirements, the formwork-explosion resisting components are demounted.

The invention provides a locking device and a wire binding belt, and relates to the technical field of package, and the technical problem that an existing wire binding band cannot be adjusted reversely is solved. The locking device comprises a telescopic mechanism and a locking piece, the locking piece is fixedly connected to one end of the telescopic mechanism, and the telescopic mechanism can drive the locking piece to axially stretch so as to realize locking and unlocking of the locking piece and the to-be-locked piece. The telescopic mechanism can drive the locking piece to axially stretchso as to realize locking and unlocking of the locking piece and the to-be-locked piece, so that the detachable connection between the to-be-locked piece and the locking piece is realized. The to-be-locked piece can be adjusted forward and reversely relative to the locking piece, so that the locking of any position of the to-be-locked part is realized, the operation is convenient, and the lockingdevice can be repeatedly used.

The invention provides a brushless direct-current motor and circuit board quick connecting device, relating to a motor device; the existing brushless direct-current motor and circuit board quick connecting device has high production cost and complex dismounting process; the quick connecting device comprises an electric-conduction contact pin (1) electrically connected with a motor winding, and a connector (2) which is matched with the electric-conduction contact pin (1) for being fixed on the connector (2) of a circuit board (3), the connector (2) comprises a connecting base (21) and a plurality of metal spring plates (22) which can clamp the electric-conduction contact pin (1) and is arranged on the connecting base (21), and the spring plates (22) are electrically connected with the circuit board (3); the circuit board (3) is inserted in an insertion cavity formed by the spring plates, so as to realize dismountable connection, achieve the purpose of the electrical connection of the winding and the circuit board and discard the connecting mode of manual welding; in addition, single-surface routing is carried out to distribute the board, so as to save the manufacturing cost of a printed circuit board; in addition, the production, assembly and maintaining efficiency can be improved.

The invention relates to a seasoning box, comprising a box body, a cover and a plurality of bearing units; the box body is cylindrical; the center of the box body is provided with a positioning post;a drying layer is arranged at the bottom of the box body; the bearing units are arranged in the box body; each bearing unit is provided with a limiting block; the positioning post is provided with grooves mating with the limiting blocks. The seasoning box is compact in structure and is capable of holding various seasonings at a time; the positioning post is provided with the grooves mating with the limiting blocks so that the positioning post is releasably connected with the bearing units, and cleaning and replacing are facilitated. Tag pockets are provided so that types of seasonings can be written on the tag pockets to facilitate usage; the seasoning box also has antibacterial effect.

The invention discloses a detachable guide hook, comprising a guide rod and an adjusting rod. The middle of the guide rod is provided with a yarn passage coiled into a ring. One end of the guide rod is provided with two elastic rods facing each other; the outer sides of the bottom ends of the elastic rods are provided with protrusions; one end of the adjusting rod is externally provided with a spinning unit, and the other end thereof is provided with a cavity in the axial direction; the diameter of the cavity matches with the spacing of the elastic rods; the inner wall of the cavity is provided with a plurality of groups of through holes; each group of through holes include a plurality of pairs of through holes, facing each other; the through holes in the inner wall of the cavity match with the protrusions; the elastic rods are embedded in the cavity; the protrusions can be embedded in the through holes. The detachable guide hook allows the guide rod and the adjusting rod to be detachably connected; if damaged, the guide rod is directly replaced, and changing the whole hook is not required. The detachable guide hook allows the angle and length to be adjusted according to different needs and is suitable for various conditions.

The invention discloses woven fabric inspecting equipment The woven fabric inspecting equipment comprises a rack, a feeding device, a material conveying device, a fabric inspecting device, a fabric coiling device and an edge blowing device; the feeding device is arranged on the rack and used for containing a finished product fabric roll; the material conveying device is arranged on the rack and used for conveying fabric on the finished fabric roll; the fabric inspecting device is arranged on the rack and used for inspecting fabric conveyed by the material conveying device; the fabric coiling device is arranged on the rack and used for coiling and taking the fabric after being inspected by the fabric inspecting device; the edge blowing device comprises an air blowing nozzle and a universalpipe arranged on the rack and connected with the air blowing nozzle; one end of the universal pipe communicates with the air blowing nozzle and the other end of the universal pipe is used for communicating with an air blowing device; and the air blowing nozzle is located between the feeding mechanism and the material conveying device to be used for blowing air for the edge of the fabric. The wovenfabric inspecting equipment can improve the fabric inspecting efficiency and reduce the workload of employees.

The invention relates to a house building steel structure fabricated wallboard, and relates to the field of fabricated wallboards. The house building steel structure fabricated wallboard comprises a mounting frame body arranged on the outer side of a wall body, a mounting opening formed in the mounting frame body and a wallboard body arranged in the mounting opening; mounting grooves are formed in the two opposite side walls of the mounting opening correspondingly, and mounting assemblies are arranged in the mounting grooves; a clamping mechanism used for clamping the mounting assemblies is arranged in the wallboard body and comprises an adjusting shaft rotatably connected into the wallboard body, an adjusting gear arranged on the outer side of the adjusting shaft, two adjusting racks slidably connected into the wallboard body, connecting strips arranged at one ends of the adjusting racks and clamping assemblies arranged at one ends of the connecting strips and used for clamping the mounting assemblies; and the two adjusting racks are located on the two opposite sides of the adjusting gear correspondingly, and the adjusting gear is engaged with the adjusting racks. According to the house building steel structure fabricated wallboard, the wallboard body is mounted at the mounting opening, the adjusting shaft drives the adjusting racks to move through the adjusting gear, thus the clamping assemblies clamp the mounting assemblies in the mounting grooves, and the wallboard body and the mounting frame body can be fixed.

The invention provides a bridge support height adjustment system. It includes a base, a jacking device arranged on the base, an adjustment backing plate assembly and a telescopic mechanism; the base is provided with a bridge support connection part and a backing plate accommodation part, and the bridge support connected to the bridge is detachably arranged on the bridge support On the connecting part, one side of the connecting part of the bridge support is provided with an opening communicating with the backing plate receiving part; the end of the jacking device away from the base is against the bottom of the bridge; the adjusting backing plate assembly is located in the backing plate receiving part, and the adjusting backing plate assembly It includes a plurality of adjustable backing plates arranged in layers; the telescopic mechanism is located on the side of the backing plate accommodation part away from the bridge support connection part, and is used to push the adjustment backing plates from the backing plate accommodation part to the bridge support connection part. Through the cooperation of the jacking device and the telescopic mechanism, the present invention can automatically add an adjustment backing plate at the bottom of the bridge support after it is jacked up, realize the automatic adjustment of the height of the bridge support, and improve the adjustment efficiency.

The invention provides a turnout mechanism and a track system. The turnout mechanism includes a basic rail, a base, a guard rail and eccentric sleeves, wherein the base is arranged on one side of thebasic rail, the guard rail is installed on the base through fasteners, and forms a track slot with the basic rail; and the eccentric sleeves sleeve the fasteners and can rotate on the fasteners to drive the guard rail to move towards one side of the basic rail. According to the turnout mechanism, functions of adjusting and replacing the guard rail are achieved. In the case of deviation or slight wear of the guard rail, the eccentric sleeve can be rotated to adjust the distance between the guard rail and the basic rail to ensure that the track slot is matched with a tram, in the case of seriouswear of the guard rail, the guard rail can be replaced to overcome the disadvantage that a related technology needs to excavate a subgrade to replace the guard rail, maintenance difficulty of the track system can be effectively lowered, and the maintenance cost and repair difficulty are greatly lowered.

The invention discloses a safety protection device for electric power maintenance. The device comprises a vehicle panel, a handle arranged at the rear end of the vehicle panel and wheels arranged at the bottom of the vehicle panel, wherein a tool box used for containing inspection tools is arranged on the vehicle panel, the upper portion of the tool box is provided with an opening, the position, located at the tail of the tool box, of the vehicle panel is provided with a hinge seat, the hinge seat is hinged with a shell, the vehicle panel is provided with a locking mechanism used for locking the shell, the side face, facing the tool box, of the shell is provided with a cover body used for sealing the opening of the upper portion of the tool box, the shell is internally provided with a safety protection mechanism used for arranging a retractable type safety protection region. The safety protection device for the electric power maintenance has the advantages that a special storage structure is adopted, the installation, transportation and storage are facilitated, and the problem is solved that a traditional safety protection net is disorderly and unsystematic after being put away andeasily lost.

The invention discloses a clamping mechanism and method for laser drilling of an artificial soft-bodied artery vessel stent. The clamping mechanism comprises a mounting seat, an electric clamping jawand a pneumatic elastic mandril, wherein one end of the electric clamping jaw is connected with a mounting seat, a plurality of clamping arms are arranged at the other end of the electric clamping jaw; the pneumatic elastic mandril comprises a mandril body, a pneumatic assembly and an inflating and exhausting assembly; the mandril body comprises a clamping segment and a support segment; a plurality of clamping grooves are formed in the clamping segment, and each clamping arm can be clamped in the corresponding clamping groove; the pneumatic assembly comprises an elastic air bag and an elasticexternal connecting layer; the elastic air bag is used for wrapping the support segment, and a vent hole is formed; the elastic external connecting layer sleeves the elastic air bag, and can be inserted into the vessel stent; and the inflating and exhausting assembly is used for inflating air into the elastic air bag, so that the elastic air bag expands to enable the elastic external connecting layer to be abutted against the vessel stent. The positioning errors of the vessel stent in the circumferential direction and in the axial direction can be reduced, the laser drilling accuracy and the drilling quality are improved, the operation is simple, and the laser drilling efficiency is improved.

The invention discloses an externally-hung condenser for a refrigerator, and belongs to the field of externally-hung condensers. The externally-hung condenser for the refrigerator comprises a condenser body, adjusting rods, a mounting frame, a sweeping assembly, a driving mechanism and dust collection mechanisms. The adjusting rods are arranged on the two sides of the condenser body respectively, therefore, detachable connection between the condenser and the refrigerator is achieved, and later maintenance and replacement are facilitated; the sweeping assembly is mounted on the mounting frame to sweep the surface of the condenser body, and therefore the situation that excessive dust adheres to the surface of the condenser body, and normal operation of the condenser body is affected is avoided; the driving mechanism is mounted on the mounting frame to drive the sweeping assembly to move, therefore, sweeping of the whole surface of the condenser body is achieved, and sweeping is more thorough; and the dust collection mechanisms are arranged on the two sides of the sweeping assembly correspondingly, so that the situation that dust swept out by the sweeping assembly splashes, and secondary pollution is caused is avoided.

The invention belongs to the technical field of food processing equipment, and relates to a smashing device of dry food. A fixing seat is manufactured in the center of an inner cavity at the bottom box, a vertical shaft is manufactured on the fixing seat, and a linear groove is formed in the circumferential wall of the inner cavity of the bottom box, a spiral tool is manufactured at the bottom end of an inner hollow type round rotary shaft, a transmission cavity is manufactured in the top end of the rotary shaft, a transmission groove is manufactured in the side face of the inner wall of the transmission cavity, a transmission clamp is arranged inside the transmission cavity, and the transmission clamp and the transmission groove are mutually meshed. The lower section portion of the transmission shaft is inserted in the top end of the transmission clamp in a penetrating mode, and a butting seat is manufactured on the upper end of the top section portion of the transmission shaft. The upper section portion of the transmission shaft is inserted into a transmission port at the central position of he box cover in a sleeved mode and is clamped by a bayonet lock in a clamping and locking mode. An inward concave type butting port is manufactured on the upper side face of the box cover, and a butting groove is manufactured in the circumference of the bottom face of the butting interface. The smashing device of the dry food is scientific and reliable in design principle, fashionable and concise in appearance, mature in preparative technique, simple and easy to use and operate, good in processing effect, high in efficiency, simple and easy to assemble and disassemble, convenient to wash, high in safety, good in stability, wide in application range, and environmentally friendly.

The invention provides a steel die grabbing mechanism. The steel die grabbing mechanism comprises a mechanical gripper and a steel die connecting tool which are detachably connected; the mechanical gripper comprises a first sliding mechanism, a second sliding mechanism and a connecting frame used for being connected with the steel die connecting tool; the connecting frame is arranged on the first sliding mechanism; the first sliding mechanism is arranged on the second sliding mechanism, and the sliding direction of the first sliding mechanism is perpendicular to that of the second sliding mechanism; the mechanical gripper further comprises a swing mechanism and a rotation mechanism; the swing mechanism is connected between the connecting frame and the first sliding mechanism; and the second sliding mechanism is arranged on the rotation mechanism and used for achieving rotation of the connecting frame in the vertical plane and the horizontal plane. The mechanical gripper has two linear freedom degrees and two rotation freedom degrees, the mounting position of a steel die can be conveniently adjusted in a tunnel, and accurate mounting of the steel die can be achieved.

The invention discloses a vortex generating device comprising at least one vortex generating unit (11). Each vortex generating unit (11) comprises a square channel set up by four clapboards (13) with the same size, and at least one level of vortex guide vane component is arranged in the square channel along the airflow direction. Each level of vortex guide vane component is composed of four flat-plate-type vortex generating vanes (12), and each flat-plate-type vortex generating vane (12) is fixed on the inner surface of each clapboard (13) and is vertical to the clapboard (13) connected with the vane (12). The vortex generating device is additionally arranged on a body of a denitration device, thus flue gas can penetrate through a catalyst layer in a vortex state so as to prolong the contact time of the flue gas with a catalyst and further realize the purposes of reducing the height of the catalyst and reducing the cost.

The invention provides a bridge support height adjusting system. The system comprises a base, a jacking device, an adjusting base plate assembly and a telescopic mechanism, a bridge support connecting part and a base plate accommodating part are arranged on the base, a bridge support connected with a bridge is detachably arranged on the bridge support connecting part, and an opening communicated with the base plate accommodating part is formed in one side of the bridge support connecting part; the end, away from the base, of the jacking device abuts against the bottom of the bridge; the adjusting base plate assembly is located in the base plate containing part and comprises a plurality of adjusting base plates which are arranged in a stacked mode; and the telescopic mechanism is located on the side, away from the bridge support connecting part, of the base plate containing part and used for pushing the adjusting base plate to the bridge support connecting part from the base plate containing part. Through cooperation of the jacking device and the telescopic mechanism, the adjusting base plate can be automatically added to the bottom of the bridge support after the bridge support is jacked, automatic adjustment of the height of the bridge support is achieved, and the adjusting efficiency is improved.

The invention discloses a wire penetration piece for a high-temperature and high-pressure electrochemical corrosion experiment, and an assembling method thereof. The wire penetration piece comprises apressing rod, a sealing joint, a cooling jacket and a threaded adapter; the cooling jacket is of a hollow structure, a cooling water cavity is formed in the cooling jacket, a cooling water pipe communicated with the cooling water cavity is arranged on the side wall of the cooling jacket, and the lower end of the cooling jacket is hermetically connected with an autoclave through a threaded adapter; the sealing joint is tightly pressed in the cooling water cavity under the action of a pressing rod, the sealing joint is of a hollow structure, a platform is arranged in the sealing joint, and a plurality of wire penetrating through holes for electrode wires to penetrate through are formed in the platform; and the pressing rod is of a hollow structure, the lower end of the pressing rod makes contact with the top of the sealing connector and presses the sealing joint, and the upper end of the pressing rod is connected with the upper end of the cooling jacket in a sealed mode. The penetrationpiece can be used for safely realizing simultaneous penetration of leads with different diameters and different materials under high-temperature and high-pressure conditions.

The invention discloses a sound attenuation clamping piece of an amorphous alloy transformer, and belongs to the technical field of a transformer clamping piece. The sound attenuation clamping piece comprises an upper clamping piece (1) and a lower clamping piece (2), wherein the lower clamping piece (2) is matched with the upper clamping piece (1), the upper clamping piece (1) comprises a cover plate (11), first sound attenuation array holes (111) and first installation holes (112) are formed in the cover plate(11), the lower clamping piece (2) comprises a lower bottom plate (21) and second sound attenuation array holes (211), and the second sound attenuation array holes (211) are formed in the lower bottom plate (21). In the sound attenuation clamping piece of the amorphous alloy transformer, the first sound attenuation array holes and the second sound attenuation array holes are respectively formed in the upper clamping piece and the lower clamping piece, the resonance of an iron core and a winding of the amorphous alloy transformer can be effectively damaged by the first sound attenuation array holes and the second sound attenuation array holes, so that the noise of the amorphous alloy transformer is reduced, and the noise pollution generated by the amorphous alloy transformer on a surrounding environment is reduced.

The invention provides an oil pipe arranging device and an oil pipe winding control method. In the using process, hydraulic oil is introduced into an oil pipe, conveyed through the oil pipe and then input into oil equipment for use. The oil pipe and the oil equipment can be disconnected by detaching a connecting device, then a winch is dismounted from the oil equipment, and then the winch and the oil equipment start to be transported. According to the oil pipe arranging device, detachable connection of the oil pipe and the oil equipment is realized, and the situation that the oil pipe is damaged due to friction and collision with the oil equipment in the transporting process is prevented.

An OTG multipurpose fast charging wire disclosed by the present invention comprises a first plug fixed on a first socket, a second plug fixed on a second socket, a fast charging and data controller and a changeover plug. The first plug is formed by combining a USB A-type plug and an OTG plug which are connected mutually, and the second plug is set as a Micro USB plug. The first and second plugs are connected with a control circuit of the fast charging and data controller separately and electrically via connection lines, at least one side surface part of the first socket and / or the second socket is equipped with a plugging groove, and the changeover plug is connected with the first socket or the second socket detachably via a plugging block plugged in the plugging groove. The OTG multipurpose fast charging wire possesses the fast charging, data protection and OTG functions, can realize the switching of a fast charging mode and a data transmission mode, can realize the situation that the changeover plug is disassembled to be in butt joint with the first plug or the second plug to thereby be compatible with various plug interfaces, and is convenient to use and carry.

The invention discloses a large-specification energy-saving ceramic plate curtain wall structure and a construction method thereof. The curtain wall structure comprises a steel frame assembly, a transverse fixing assembly, a vertical fixing assembly, a ceramic composite plate assembly and an edge and opening closing assembly. According to the large-specification energy-saving ceramic plate curtainwall structure and the construction method thereof, the specific notch embedded parts and capital omega-shaped adapting parts are adopted, detachable connection among all the parts can be achieved, the on-site welding process is omitted, and the steel frame assembly can be conveniently detached at any time; and through position-adjustable connection among an aluminum alloy stand column, the capital omega-shaped adapters and the notch embedded parts, a function that errors can be adjusted at any time is achieved, a T-shaped aluminum alloy inner hanging piece is detachably and fixedly connectedwith a transverse angle steel, a ceramic composite plate assembly is hung on the T-shaped aluminum alloy inner hanging piece through an F-shaped aluminum alloy outer hanging piece, the position precision is adjustable, installing and uninstalling are conducted at any time, maintenance is convenient, steel is saved, and tedious temporary reinforcing measures during solidification of ceramic tile glue in the past are omitted.

The invention discloses a uterine cavity cutter knife, which solves problems of complicated structure, difficult operation, large injury, long operation time and expensive cost and the problem that the damage can be caused easily of using hard shears or semi-hard shears in the prior art. The uterine cavity cutter knife mainly consists of an operating rod (1), a handle (2) and a cutter blade (3), wherein the handle (2) is arranged at the first end part of the operating rod (1), and the cutter blade (3) is arranged at and detachably connected to the second end part of the operating rod (1), the included angle between the cutter point of the cutter blade (3) and the operating rod (1) is 45-90 degrees; and the cutter blade (3) is in detachably connected with the operating rod (1) through a card slot or / and threads. On the basis of the structure, the invention also discloses a connecting method of the uterine cavity cutter knife. The uterine cavity cutter knife is simple in structure, low in cost and easy in operation, thereby being suitable for popularization.

The invention discloses an air feeding and discharging device of a guide head. The air feeding and discharging device of the guide head is mounted on a shell (10) of the guide head and placed in an inner cavity of the guide head, and comprises outer sleeves (1), an air nozzle (2), handles (4) and air feeding heads (5). The air nozzle (2) is placed in the outer sleeves (1), the air nozzle (2) comprises a plug section and a ventilation section, the plug section is provided with an external thread, a flow guide groove is formed in the external thread, and an air nozzle inner cavity (202) is formed in the middle of the ventilation section. First steps (203) are arranged between the plug section and the ventilation section, gaps are arranged between the outer sleeves (1) and the first steps (203), and the outer sleeves (1) are provided with first sealing rings (6) at the gaps. An air through hole (201) is formed in the position, close to the first sealing rings (6), of the ventilation section, the air nozzle cavity (202), the air through hole (201) and the flow guide groove form an air feeding and discharging channel, and the handles (4) sleeve the air nozzle (2). The air feeding heads(5) are placed in the air nozzle inner cavity (202). The air feeding device has simple structure, convenient air feeding and discharging operation and good sealing.

The invention discloses fixed type laser scanning equipment, including a scanner and a pedestal. The scanner includes an engine part and a holding part; the pedestal includes a sucker, a bendable pipe and an end part accommodating groove with an open end; the engine part consists of an engine head and a positioning seat, the bendable pipe is fixed on the sucker, a pad groove and a fixed disc are arranged on the bendable pipe, and the fixed disc is provided with bendable left enclasping arm and right enclasping arm; the engine head is arranged in the positioning seat, and includes a laser scanning window which is recessed inward, an upper end position of a scanning head of the laser scanning window is provided with a dust removing mechanism, and a front end side face of the laser scanning window is provided with a vertical sliding mechanisms. The fixed type laser scanning equipment reduces the failure rate, improves work efficiency, reduces loss, and has high feasibility; alleviates the extent of oppression and injury of a wrist, and can avoids occurrence of a phenomenon that after use, the scanner is placed at will for multiple times, and damage of the engine part is caused.

The invention discloses a laser scanning device with a base. The laser scanning device comprises a scanner and the base, wherein the scanner comprises an engine part and a holding part; the engine part consists of an engine head and a positioning seat; the base comprises a suction cup, a hose connected to the suction cup, an insertion groove fixedly connected to the top end of the hose, and a supporting part fixed in the middle of the hose; an insertion column is arranged in the insertion groove; the engine head further comprises a laser scanning window that is recessed inwards; a dust removal mechanism is arranged at the upper end of a scanning head of the laser scanning window; and a longitudinal sliding mechanism is arranged on the side surface of the front end of the laser scanning window. The laser scanning device not only can realize detachable connection between the engine head and the holding part but also can realize automatic dust removal all the time, and the dust removal is simple, convenient and flexible; the service life of the laser scanner is prolonged, the fault rate is reduced, the efficiency is improved, and the loss is reduced; the laser scanning device is high in feasibility, safety and stability; and the problem of damage to the engine part caused by improper arrangement is avoided.