166results about How to "Simple and quick installation and disassembly" patented technology

The invention relates to an indoor unit of an air conditioner. The indoor unit comprises a machine shell, an air outlet frame, an air deflector, a non-wind feeling air outlet plate and a driving mechanism, wherein an air duct is arranged inside the machine shell; air outlets are formed in the machine shell; the air outlet frame is fixed inside the machine shell, and communicates with the air duct; air guide holes matched with the air outlets in shape are formed in the air deflector; a plurality of small holes are formed in the non-wind feeling air outlet plate; the air deflector and the non-wind feeling air outlet plate are connected on the air outlet frame in a sliding manner; and the driving mechanism drives the air deflector and the non-wind feeling air outlet plate to communicate with the air duct and the air outlets in a switchable manner. According to the indoor unit, the non-wind feeling air outlet plate which communicates with the air outlets in a switchable manner is arranged, so that when passing through the small holes in the non-wind feeling air outlet plate, airflow is dispersed into a plurality of small air flow to spread outwards, a user can feel cold or warm inside a room without the requirement that cold air or hot air is directly blown on the body, non-wind feeling air supply can be achieved, the user feels more comfortable, and the user experience is improved.

The invention discloses a punching mold convenient to disassemble and replace a punching head. The punching mold comprises a shell; the shell is hollowed; a feed port communicating with the internal of the shell is formed in the front side wall of the shell; an opening of the feed port is rotationally connected with a cover plate; a mounting plate, transversely arranged, is slidingly connected into the shell; chutes, matched with the mounting plate, are symmetrically formed in the inner walls of two sides of the shell; thread rods, vertically arranged, are rotationally connected into the chutes; the thread rods penetrate through the mounting plate, and are in threaded connection with the mounting plate; a driving device matched with the thread rods is arranged at the upper end of the shell; the punching head is arranged on the lower side wall of the mounting plate; a worktable is fixedly connected to the inner wall of the lower side of the shell; and an object placing tank matched withthe punching head is arranged on the upper side wall of the worktable. The punching mold is simple in operation, convenient to use, simple and fast in installation and disassembly of the punching head and convenient to replace the damaged punching head, and improves the working efficiency.

The invention discloses an anti-seepage slurry infiltration instrument of a refuse landfill, and belongs to the field of environmental geotechnics. The anti-seepage slurry infiltration instrument comprises a reservoir, a cutting ring, a filter disc, a filtrate container, a side pressure pipe and a vent valve, wherein the lower part of the reservoir is opened, and the opening is hermetically connected with one end of the cutting ring, the other end of the cutting ring is connected with the filtrate container through the filter disc, and water drainage holes are formed in the filter disc, and the side pressure pipe and the vent valve are respectively arranged on the top of the reservoir. The infiltration instrument is simple in structure and convenient to operate, a test process is safe and reliable, a test result is accurate, and the anti-seepage slurry infiltration instrument used for the anti-seepage engineering of separation walls of various refuse landfills, the adsorption retardation of anti-seepage slurry is accurately tested, and the data support is provided for the anti-seepage quality of the refuse landfill separation wall.

The invention discloses an LED (light emitting diode) lamp unit having simple and light structure, abundant combination change, flexible application, convenient connection and mounting and various illumination and decoration effects and a combined lamp. The LED combined lamp comprises a mounting plate (6) and the LED lamp units, wherein each LED lamp unit comprises a polygonal shell (1), a circuit board (2) and a conductive connecting piece (4); LEDs (6) are arranged on each circuit board (2), and the circuit board (2) is embedded in a shell (1); all the edges of each circuit board (2) are respectively provided with two conductive jacks (21) used as anode and cathode terminals of each LED lamp unit; both ends of each conductive connecting piece (4) are fixed with a conductive rivet (5), and the conductive rivets (5) are embedded in the anode and cathode conductive jacks (21) and tightly matched with the conductive jacks (21); adjacent LED lamp units are conductively connected through two conductive connecting pieces (4) and the conductive rivets (5) at both ends of the conductive connecting pieces (4); and the LED lamp units are fixedly connected with the mounting plate (6).

The invention discloses a machining stamping device with a die convenient to replace. The machining stamping device comprises a table plate, wherein a plurality of supporting legs are fixedly connected to the bottom of the table plate, a lower mounting block is fixedly connected to the top of the table plate, a mounting groove is formed in the top of the lower mounting block, a lower die is arranged at the top of the lower mounting block, the lower die is matched with the mounting groove, two pressing plates are symmetrically arranged on the two sides of the lower mounting block, two matchingstrips are symmetrically and fixedly connected to the bottoms of the pressing plates, and matching grooves are formed in the outer walls of the matching strips in a penetrating mode. According to themachining stamping device, by arranging first hydraulic cylinders, the pressing plates, the matching grooves, wedge-shaped blocks, pressing blocks and the like, the wedge-shaped blocks are driven by the first hydraulic cylinders to move, the matching strips can be driven to move downwards through mutual matching of the wedge-shaped blocks and the matching grooves, the pressing blocks are driven bythe pressing plates to fix the lower die, the hydraulic cylinders are driven in the direction, and the pressing plates can be jacked up under the action of first springs, so that the lower die is convenient to disassemble.

The invention discloses a wind power generation system. The wind power generation system comprises a base, the upper end of the base is fixedly connected with a fixing seat, the fixing seat is provided with a lifting groove with an upward opening, and a lifting rod is slidably connected in the lifting groove, and the upper end of the lifting rod is fixedly connected with a mounting plate, and themounting plate is connected to the wind power generation device by a fixing device, wherein the fixing seat is provided with a first rotating groove disposed vertically, and a first threaded groove isrotatably connected to the first rotating groove, the first threaded rod is sleeved with a matching nut, and the side wall of the nut is fixedly connected with a connecting rod. The wind power generation device can be raised and lowered, and the wind power generation device is lowered during transportation, the volume of the device is reduced, and the transportation is convenient, and the heightof the device is raised by using the splicing mechanism connection, thereby reducing the labor intensity of the worker and improving the working intensity, and the installation and disassembly of windpower generation device is simple and quick, which is convenient for maintenance and replacement, and improves work efficiency.

The invention discloses a blanket display rack, which comprises a base, a supporting shaft and a display plate, wherein the supporting shaft is arranged on the base; the display plate sleeves the outer surface of the supporting shaft and is in pin-joint with the supporting shaft; the display plate can rotate on the supporting shaft in a mode of deviating leftwards by 360 degrees; the outer surface of the display plate is of a polygonal structure which is formed by a plurality of planes; two corresponding vertical sides of each plane are each provided with a plurality of clamping blocks; and notches for clamping a blanket are formed between the clamping blocks and the corresponding planes. When the blanket display rack provided by the invention is used, two corresponding long sides of the blanket are clamped in the notches between the clamping blocks and the planes, so that the blanket can be assembled and disassembled quite conveniently and rapidly; moreover, a plurality of blankets, differing in style, can be simultaneously displayed on one display plate which is provided with the plurality of planes; and the blankets can be observed and browsed quite conveniently by rotating the display plate, so that the trouble of walking around is avoided.

The invention discloses waste gas purification equipment with a filtering function for chemical machine production. The waste gas purification equipment comprises a purification box, wherein the innerwall of one side of the purification box is provided with a first fan through a bolt; one side, which is near the first fan, on the outer wall of the top of the purification box is provided with an air inlet pipe through a bolt; two sides of the inner wall of the bottom of the purification box are respectively provided with a supporting substrate through bolts; the outer walls of two ends of thesupporting substrate are respectively connected with the inner walls of two ends of the purification box through bolts; the outer wall of the top of each supporting substrate is provided with a connecting groove. According to the waste gas purification equipment, a first filtering screen plate and a second filtering screen plate of different net holes are used for carrying out dual filtering to remove larger impurity particles in waste gas, alkaline liquid is sprayed into waste gas through a shower nozzle to carry out neutral reaction with acid gas in the waste gas so as to filter the acidic components of the waste gas, oil stain in the waste gas is adsorbed and filtered by oil adsorption cotton so as to improve the waste gas filtering effect of the device, and waste gas filtering qualityis ensured.

The invention discloses a pressing pin device which comprises a base. A first rotating groove is transversely formed in the base and rotationally connected with a first threaded rod, one end of the first threaded rod penetrates through the first rotating groove, the first threaded rod is further sleeved with a first nut matched with the first threaded rod, a first connection rod is fixedly connected to the side wall of the first nut, the side wall of the upper side of the base is provided with a strip-shaped opening communicating with the first rotating groove, the first connection rod penetrates through the strip-shaped opening, the upper end of the base is provided with a placement plate, the end, away from the first nut, of the first connection rod is fixedly connected with the placement plate, a second rotating groove is transversely formed in the placement plate, a second threaded rod is rotationally connected with the interior of the second rotating groove, and one end of the second threaded rod penetrates through the second rotating groove. A pin hole for installation of fixing pin materials can be rapidly positioned, clamping is firm, disengagement is not likely to occur, ad working efficiency is improved.

The invention discloses a locking clamping track instrument, which comprises a base with an inverted U-shaped cross section, an arc-shaped panel, a handle locking seat, a handle, a handle rotating shaft, a contact surface, a handle rotating shaft seat, a handle tension spring, at least one pair of gripper arms and torsional springs, wherein the base is used for sleeving a rail; the arc-shaped panel is fixedly arranged on the base; the cambered surface of the arc-shaped panel is matched with a wheel; the handle locking seat is fixedly arranged on the base; the handle locking seat is provided with a locking slot; the front end of the handle is provided with locking clamping blocks; the locking clamping blocks are correspondingly arranged in the locking slot under the state that the handle is locked; the handle is also provided with the handle rotating shaft; the tail of the handle is provided with the contact surface; the contact surface downwards presses when the handle rotates around the handle rotating shaft; the handle rotating shaft seat is provided with handle rotating shaft holes; the handle rotating shaft can linearly slide in the handle rotating shaft holes along the inner outlines of the handle rotating shaft holes; the handle tension spring is used for applying a force in the length direction of the base to the handle; the at least one pair of gripper arms is arranged on two sides of the width direction of the base; the torsional springs correspondingly sleeve the gripper arms.

The invention discloses an insert button type electricity getting-based external track power supply system. The system comprises a power supply track and an electricity getting device; the power supply track comprises reverse hooks, a limiting groove and a track groove; the reverse hooks are arranged on the two sides of the track groove and extend upwards to form the limiting groove; the bottom ofthe limiting groove is provided with a conductive copper sheet; the electricity getting device comprises an electricity getting probe, forward hooks and hook grooves; the hook grooves are formed in the two sides below the electricity getting device; the forward hooks and the reverse hooks are matched in an abutted manner; and the electricity getting probe is in contact with the conductive coppersheet to get electricity. The system has the beneficial effects as follows: an independent insert button type electricity getting plug is used for obtaining the electricity from the external track system to provide illumination and display for a display rack, a display cabinet and a display board; and the mounting and dismounting are very simple and quick.

A circuit board is disclosed and includes a circuit board body, A first cushion block and a mounting hole, A top frame is horizontally connected to the top of the circuit board body, and the bottom ofthe circuit board body is horizontally connected with a bottom plate, A longitudinally arrange first cushion block is connected with that top four corner of the circuit board body, the top frame andthe bottom plate, a second cushion block is connected with the bottom of the first cushion block, two sides of the bottom plate are clam with sliding rails along the length direction, and the bottom plate is fixedly connected with the sliding block through four groups of positioning holes and bolts. A limit position plate is horizontally connected between that two second pad blocks at the two endsof the top of the circuit board body and between the two second pads at the two side of the top, and a pressing plate connected with the horizontal arrangement is connected at the bottom of the limiting plate. The position of the circuit board body inside the electrical equipment is easy to adjust and change, and the circuit board body installation is more convenient and quick, and can meet different installation needs. When the whole circuit board needs to be disassembled, replaced or repaired, it can be disassembled freely.

The invention relates to a polypropylene textile environment-friendly advertising cloth. Polypropylene is adopted as the main raw material for preparing the novel environment-friendly advertising cloth with a plurality of characteristics and with a polypropylene cloth as the base cloth. The advertising cloth can include a polypropylene base cloth layer, a waterproof coloring layer, and a macromolecular ink absorption layer. Compared with the currently widely used polyvinyl chloride coated mesh sandwiched cloth, the advertising cloth provided in the invention has the advantages of good inkjet printing effect, light weight, cost saving, and more environment-friendly use and treatment after use.

The invention discloses a proximity switch with a damping function, comprising a shell and a mounting plate, wherein the mounting plate is arranged above the shell, wherein a storage groove having anopening downward is provided in the shell, a proximity switch is arranged in the storage groove, the upper side wall of the shell is fixedly connected to the mounting plate by a fixing device, the upper end of the proximity switch is connected with a wire, a through hole matched with the wire is provided in the shell, two sets of first sliders and second sliders are symmetrically arranged on two side walls of the proximity switch, and first chutes matched with the first sliders and the second sliders are provided in the two inner walls of the storage groove. The proximity switch is easy to operate and convenient to use. The proximity switch is effectively protected by the shell, so that the service life of the proximity switch is prolonged. The shell is easy to mount and detach, which is convenient for inspection and replacement, and improves the work efficiency.

The invention discloses a filtering mechanism for lubricating oil of an automatic machine tool. The filtering mechanism comprises a shell body, wherein a filtering groove with an upward opening is formed in the shell body; a cover plate is in rotary connection with the opening of the filtering groove; the shell body is internally provided with a cylindrical filter cartridge; a feeding opening withan upward opening is formed in the cylindrical filter cartridge; a plurality of through holes, which are communicated with the feeding opening, are formed in a side wall at the lower side of the cylindrical filter cartridge; the lower end of the cylindrical filter cartridge is fixedly connected with a fixed barrel; the fixed barrel is connected with a filtering plate through a fixing device; an oil pump is arranged on the side wall at one side of the shell body; the oil pump is communicated with a filtering groove through an oil suction pipeline; the oil pump is further connected with an oilconveying pipeline. The filtering mechanism is simple in structure and convenient to use; lubricating oil raw materials are filtered for three times so that the filtering effect is improved; the cylindrical filter cartridge for filtering and the filtering plate in the device are simple and rapid to mount and dismount and the device is convenient to wash.

The invention discloses a method for construction of a continuous grid frame 0# section or a linear section through an assembly-type bracket corbel construction device, and particularly relates to a method for construction of a continuous beam linear segment without a floor stand. The method comprises the following steps that (1) a horizontal transverse beam, a vertical supporting mechanism, a slant supporting mechanism, a tie bar, a shear-resisting plug, an embedded steel tube and an embedded steel box are manufactured; (2) the embedded steel tube and the embedded steel box are installed; (3) a corbel tripod is formed by the horizontal transverse beam, the vertical supporting mechanism and the slant supporting mechanism; (4) when the corbel tripod is installed in place, stress is borne by the shearing-resisting plug, the tie bar penetrates through the embedded steel tube and is used for tensioning the horizontal transverse beam and the two ends of the tie bar are fixed; (5) after a bracket is installed, following construction of a bottom die platform and beams is conducted; (6) connection bolts of the tripod are detached, the tripod is put down in a hanging mode and is detached into independent rods which are not assembled, then, the shearing-resistant plug and finish-rolled threaded steel pull bars are detached, and all components are transferred to the next construction point for reassembly or are transferred to a stock for storage.

The invention discloses a drill bit conveniently-changed garden planting hole digging device. The drill bit conveniently-changed garden planting hole digging device comprises a mounting base, both side walls of the mounting base are provided with handles; the inside of the mounting base is provided with a downward opened rotating slot, inside which a rotating rod is rotatingly connected through alimiting device; the inside of the mounting base is also provided with a driving device matched with the rotating rod, the lower end of the rotating rod is provided with a drill bit and a lug, the upper wall of the drill bit is provided with a groove matched with the lug, the inside of the lug is provided with a first sliding cavity, the inside of the rotating rod is provided with a second slidingcavity communicated with the first sliding cavity, the inside of the first sliding cavity is symmetrically and slidingly connected with vertical sliding rods, the upper ends of the two sliding rods extend into the second sliding cavity, and the side walls of the two sliding rods which are opposite to each other are fixedly connected with clamping blocks. The drill bit conveniently-changed gardenplanting hole digging device is simple in operation and convenient to use; the drill bit is simple and rapid to mount and dismount, thereby being convenient to maintain and change and improving the working efficiency.

The invention discloses a base fixing mechanism for a building lifting machine. The base fixing mechanism for the building lifting machine comprises a base plate, a limiting plate and a through hole.Accommodating cylinders are respectively connected with the limiting plate and the base plate through top plates and base plates. After the top of the limiting plate is subjected to downward pressure,tappets retract downwards into the accommodating cylinders, and first damping springs and second damping springs push the top plates to move upwards. The first damping springs and the second dampingsprings absorb vibration force, shaking of the bottom of the lifting machine is reduced, stability of the bottom of the lifting machine is excellent, and damage is not liable to occur. Fixing rods areused for being inserted into the ground, the method is simple, installation is quick, the occupied space is small, and stability is excellent. Excessive machinery is not required, the bottom can bearpressure of the lifting machine in application, and the base plates and the limiting plate are not liable to deform.

The invention discloses a connecting adjusting structure of side formworks for road construction. The connecting adjusting structure comprises a first shell, a second shell, support rods and positioning bolts. The second shell is connected to one end of the first shell. One end of a first screw is sleeved with an extrusion spring, and a second screw is connected to the other end of a connecting plate. Longitudinally-arranged threaded barrels are connected to one sides of clamping joints through fastening screws, and the positioning bolts are connected into the threaded barrels through threads.Two sets of reticulated plates are connected between the first shell and the second shell through receiving grooves, and an inflatable bag is installed between the two sets of reticulated plates. Raised heads are connected to both sides, close to one end of the concave surface, of the inflatable bag in the height direction, and the other ends of the two reticulated plates are connected into the receiving groove of the interior of one end of the second shell in a clamped mode. And the reticulated plates and the inflatable bag are connected between the two shells, so that the two shells after removal cannot be separated, and concrete cannot be leaked between the two shells.

The invention discloses a dust spraying treatment method. The dust spraying treatment method comprises a framework and a transportation mechanism, wherein the transportation mechanism is mounted inside the framework; the two sides inside the framework are separately provided with an adsorption cavity and a spraying cavity; the top of the framework is connected to a top plate; the bottom of the topplate is equipped with an upper top plate; a bottom plate is mounted below the inner part of the framework; and a plurality of gas spraying tubes are rotatably mounted on the upper part of the bottomplate. In use, inclination angles of the gas spraying tubes and an inclination angle of a dust sucking tube can be freely regulated; after the gas spraying tubes and a rotary shaft on the bottom of the dust sucking tube rotate, the inclination angles of the gas spraying tubes and the inclination angle of the dust absorbing tube also change to adapt to different working needs, so that dust clearing is more complete; and after articles are cleared inside the adsorption cavity, the articles move into the spraying cavity along an upper slide rail, so that a plurality of spraying heads on the bottom of a water storage tank can spray water to to-be-cleared articles, and therefore, dust outside the articles is cleaned, and dust is degraded.

The invention discloses a cutting device for a plastic product. The cutting device comprises a shell, the side wall of one side of the shell is provided with a feeding port communicating with the interior of the shell, and a cover plate is ratably connected to an opening of the feeding port; the shell is internally and rotatably connected with a transversely-formed first rotating groove which is internally and rotatably connected with a first threaded rod, one end of the first threaded rod is arranged to penetrate through the shell, and the first threaded rod is sleeved with a first nut matched with the first threaded rod; the side wall of the first nut is fixedly connected with a first connecting rod, the inner wall of the lower side of the shell is provided with a strip-shaped opening communicating with the first rotating groove, and the first connecting rod is arranged to penetrate through the strip-shaped opening; and the end, away from the first nut, of the first connecting rod isfixedly connected with an object placing plate which is internally provided with a transversely-formed second rotating groove. The cutting device for the plastic product is easy to operate and convenient to use, material clamping is simple and firm, mounting and dismounting of a cutting wheel for cutting is simple, convenient and fast, overhaul and replacement of the cutting wheel is facilitated,and the working efficiency is high.

The invention discloses an aerator with a top multi-layer sealing device. The aerator with the top multi-layer sealing device comprises a shell, the shell is of a hollow structure, a top frame is fixedly connected to the upper end of the shell through a top frame stand column, a movable autorotation mechanism and a braced chain system are further arranged at the upper end of the shell, the bracedchain system is connected with a lifting hook through a sliding rod, and a strip-shaped port matched with the sliding rod is formed in the side wall of the upper side of the shell. The lifting hook islocated in the shell, a sealing groove body is fixedly connected to the side wall of the upper side of the shell, and the sliding rod is located in the sealing groove body. The aerator is simple in operation and convenient to use, the strip-shaped port is sealed by a wear-resisting sealing skin and a top sealing sliding plate, shot blasting and splash can be effectively prevented flying out fromthe strip-shaped port, the sealing effect of the aerator is good, the environment and safety of workers are protected, the safety performance is high, and the wear-resisting sealing skin is easy to install and disassemble and convenient to replace.

The invention discloses a water ecology comprehensive repairing system which comprises oxygenating and aerating systems and animal and plant ecological cultivation systems which are arranged alternately along the riverway at intervals, wherein each of the oxygenating and aerating systems comprises an aerating disc, an air supply general pipe, an air supply branch pipe and air supply dividing discs; the air supply general pipe is arranged vertical to the riverway, the air inlet end of the air supply branch pipe is vertically bended downward and is then communicated with the air supply general pipe, the air supply dividing discs are arranged along the extension direction of the air supply branch pipe at intervals, and each of the air supply dividing discs is composed of a main channel and a plurality of dividing pipes; the dividing pipes are radially distributed on the circumferential side wall of the main channel, each of the dividing pipes is provided with an automatic control valve and is connected with one aerating disc through an air supply hose; each of the animal and plant ecological cultivation systems comprises a plant floating island, a fish nest and an ecological fish shelter which are sequentially arranged from bottom to top; the ecological fish shelter is a hollow hexahedron which is encircled by a top plate, a bottom plate, a left vertical plate, a right vertical plate, a front oblique plate and a rear oblique plate, wherein the cross section is an isosceles trapezoid. The system is good in oxygenating effect and remarkable in repairing effect.

The invention discloses a connecting assembly for automobile exhaust pipes. The connecting assembly for the automobile exhaust pipes includes a main pipe, an installation head and a decorative pipe. One end of the main pipe is connected with the decorative pipe through the installation head, a sleeve is connected between the decorative pipe and the main pipe, one end of the sleeve is welded to themain pipe, and the other end of the sleeve is connected with a stabilizing pipe through a thread. A metal hose is connected to the end, close to the sleeve, of the stabilizing pipe, and three groupsof connection plates are uniformly connected between the external of the sleeve and the installation head. A fixing frame is installed at the middle end of the external of the sleeve in a sleeving mode, the fixing frame is composed of a first half ring and a second half ring, a plurality of damping springs are installed between one side of inner rings and the interior of the first half ring and the second half ring. Existence of the metal hose facilitates connection of a whole exhaust pipe, installation between a plurality of parts of the exhaust pipe is more convenient and quicker, exhaust gas leakage is not prone to occur, and the work efficiency of installation is improved.

The invention discloses a pin-type connector of a reinforced communication cable, which comprises a fixing shell, a clamping shell and a cable conveying pipe. A cover plate is clamped at the top of the clamping shell; a plurality of pins are connected to the interiors of a mounting hole and a limiting groove; a plurality of threaded holes are uniformly formed in the mounting hole and the limitinggroove; a metal sleeve is in threaded connection in the threaded hold; a plug is connected to the middle of the end, away from the mounting hole, of a pressing plate; a plurality of jacks are uniformly formed in the plug; the middle end of the top of the cable conveying pipe is longitudinally connected with a bolt rod; the bottom of the bolt rod penetrates through the cable conveying pipe to be connected with a top plate; and the bottom end of the interior of the top plate is connected with a push plate. The plug can be detachably connected with the clamping shell through the pins, and the interior of the plug can be independently detached from one end of the clamping shell to be replaced after being damaged, and normal transmission of communication signals can be ensured. The plug is replaced independently, so that the cost is saved and the use cost is reduced.

The invention discloses a drill bit with dry internal drillings discharge and is intended to solve the problem that an existing drillings-discharge drill bit with simple structure is low in drillingsdischarging efficiency, cannot provide dry discharging for drillings, is not convenient enough to change during use and is high in post-damage maintenance cost. The drill bit comprises a bit body, a plurality of cutting edges in spiral shape, a shank and a plurality of through holes; the cutting edges are connected to the outer side of the bit body; the through holes are arranged in the outer sideof the bit body between the cutting edges; one end of the bit body is fitted with a top cap; the top cap is fixedly connected with the bit body via a screw hole and a screw; a plurality of conical protrusions are evenly connected to the edge, close to grooves, of the top cap. The middle of the other end of the bit body is connected with a fixing terrace; the bit body is connected with the shank via the fixing terrace; the outside of the other end of the shank is connected with a hex terrace; a second inner tube is connected to the middle of the inside of the end, close to the hex terrace, ofthe shank; an inner ring is connected to each inner side of the second inner tube.

The invention relates to the technical field of mobile houses, in particular to a mobile house capable of being quickly disassembled and assembled. The mobile house comprises two mobile house units stacked from top to bottom. The mobile house unit includes a mobile house front panel, a mobile house rear panel, and mobile house side panels connecting the mobile house front panel and the mobile house rear panel. Each mobile house side panel includes a first mobile house side panel rotatably connected to the mobile house front panel, a second mobile house side panel rotatably connected to the mobile house rear panel, and the first mobile house side panel and the second mobile house side panel are rotatably connected and have the same structure. The mobile house further includes a support frame disposed inside the lower mobile house unit, and the support frame includes a bottom support frame. The wall, the bottom plate and the roof of a mobile house can be disassembled, and the mobile house front panel, the mobile house rear panel and the mobile house side panels of the wall can be folded to facilitate transportation. And through the mobile house units and the support frame, the mobilehouse is easy to disassemble and install.