106results about How to "Support" patented technology

The invention discloses a container transport vehicle and a self-loading and unloading device thereof. The self-loading and unloading device comprises a hoisting component (5), wherein the hoisting component (5) comprises a base (54), a bent suspension arm component (51) and a first hydraulic oil cylinder (52); the base (54) is fixed on one side of a chassis of the container transport vehicle; a first end of the suspension arm component (51) is hinged on the base (54), and a second end of the suspension arm component (51) is provided with an object acquiring device (513); the object acquiring device (513) comprises a suspension chain and a locking mechanism positioned on the lower side of the suspension chain; and a first end of the first hydraulic oil cylinder (52) is hinged on the base (54), and a second end of the first hydraulic oil cylinder (52) is hinged in the middle of the suspension arm component (51). By the self-loading and unloading device, the transport vehicle can finish the loading and the unloading of containers from the side face of a vehicle body independently.

The invention relates to a support structure and a construction method of a cantilever plate for a house building project, and belongs to the field of cantilever plate construction. The support structure comprises wall-through screws and a bracing frame, the bracing frame comprises a carrying rack arranged horizontally and two fixed rods arranged vertically, the upper ends of the fixed rods are connected to the carrying rack, the side, far from the wall, of each fixed rod is vertically provided with a chute, the fixed rod is fixedly provided with ratchet bars at positions corresponding to thetwo sides of the chute, one end of each wall-through screw penetrates the chute, the fixed rod is provided with fixed plates corresponding to the ends, penetrating the chutes, of the wall-through screws, the side, far from the wall, of each fixed plate is in transmission connection with a nut which is in threaded connection with a screw, the circumference of the nut is fixedly connected with a ratchet ring, position, corresponding to the upper of the ratchet ring, of the fixed plate is in vertically sliding connection with a ratchet, and the side, close to the wall, of the fixed plate is provided with a ratchet plate whose tooth direction is opposite with that of the ratchet bar. The height of the support structure is convenient to adjust, and the bracing frame is firmly fixed to the wall.

The invention discloses a construction method for a connecting part of PHC tubular piles, which is characterized in that: the circumferential positioning of two butted PHC tubular piles (8) on each layer is carried out through a connecting piece (7); and the inside and outside of a pipe wall of the connecting part of the PHC tubular piles (8) on each layer are grouted from the bottom up. The construction method for the connecting part of the PHC tubular piles ensures good connecting effect between the PHC tubular piles (8) and low cost.

A magazine support reinforcement for a machine gun having a receiver. A magazine support is attached to the underside of the receiver. The magazine support reinforcement is connected to the magazine support. The reinforcement includes a front support, a rear support and a fastener for fastening the front support to the rear support. The front and rear supports include bracing members having a generally concave side and a lug portion.

The invention provides an inorganic foaming filling and reinforcing composition for a coal mine as well as a using method and application thereof. The inorganic foaming filling and reinforcing composition for the coal mine can be used as a novel safe plugging and reinforcing material, is especially suitable for plugging and reinforcing of the coal mine, and is the best water-proof, fire-proof, gas-proof, collapse-proof and accident-proof material.

The invention discloses a GNSS (global navigation satellite system) signal simulator and an implementing method thereof on the basis of GPU (graphic processing unit). The GNSS signal simulator is composed of a computer, an intermediate-frequency board card and a radio-frequency board card. The GPU of the computer generates digital intermediate-frequency data, transmits the data to the intermediate-frequency board card for digital / analog conversion, and generates GNSS navigation signals by frequency conversion and power attenuation on the radio-frequency board card. The GNSS signal simulator has the advantages of low cost, short development period, higher flexibility in supporting new navigation frequency points and signal modulation modes, no extra synchronous board card, low design difficulty, low system complexity and the like.

The invention relates to a four-column suspension swinging beam type gangue filling hydraulic support. The four-column suspension swinging beam type gangue filling hydraulic support comprises a front top beam, an Y-shaped upper connection rod, and a rear top beam, a stand column, a balance jack, a swinging beam, a swinging beam jack, a rear connection rod, a front connection rod, a foundation, a pushing frame, and a pushing jack which are connected with the front top beam; the stand column is supported between the front and rear top beams and the foundation; the upper end of the Y-shaped upper connection rod is connected with a connection point of the front and rear top beams; the Y-shaped upper connection rod, the front connection rod, the rear connection rod, and the foundation are connected two by two to form a four-connection-rod structure; the swinging beam is positioned at the rear end of the foundation, the upper part of the swinging beam is connected with the swinging beam jack which is arranged on the rear top beam, and the swinging beam can swing in a vertical direction under the action of the swinging beam jack; and the upper and lower parts of the swinging beam jack are connected with the rear top beam and the swinging beam respectively, and the swinging beam is adjusted in a vertical direction under the action of the swinging beam jack. The four-column suspension swinging beam type gangue filling hydraulic support can support a top plate during coal mining, can fill a gob, and integrates support and filling.

The invention discloses a strong-water-permeability stratum building foundation pit horizontal grouting sealing bottom construction method. The strong-water-permeability stratum building foundation pit horizontal grouting sealing bottom construction method includes the following steps that horizontal grouting sealing bottom construction is conducted, wherein precise positioning and horizontal grouting hole drilling are conducted through a horizontal directional drilling machine, and after hole drilling is completed, retreating type grouting is conducted when drill stems are dragged back, and ahorizontal sealing bottom is formed at the bottom of a foundation pit; and vertical curtain construction is conducted, wherein after sealing bottom horizontal grouting is completed, closed vertical curtains are formed on the four sides or the three sides of the foundation pit, complete lap joint connection is conducted on the vertical curtains and the horizontal sealing bottom, and in other words, a strong-water-permeability stratum foundation pit water insulation structure is formed. According to the strong-water-permeability stratum building foundation pit horizontal grouting sealing bottomconstruction method, vertical curtain construction is conducted after horizontal sealing bottom construction is conducted; firstly, the horizontal sealing bottom can be rapidly formed for the foundation pit to control underground water; then, the vertical curtains and the horizontal sealing bottom structure are connected together, and therefore a three-dimensional anti-seepage structure can be formed for the foundation pit project, and the effects of supporting, water insulation and foundation pit project reinforcing are achieved; and while the surrounding environment is well protected, the project cost is saved, and the project risk is lowered.

A suspended structure for heavy equipment comprises two suspended cross beams which are arranged oppositely, the two ends of each suspended cross beam are both provided with a lifting lug plate, each lifting lug plate is provided with multiple lifting lug holes, the faces, opposite to each other, of the two suspended cross beams are both provided with multiple connecting plates, each connecting plate is provided with a connecting hole, and each connecting plate is provided with multiple reinforcing ribs connected to the corresponding suspended cross beam. According to the suspended structure for the heavy equipment, the connecting plates penetrate through the suspended cross beams, the contact stress of the connecting plates and the suspended cross beams is dispersed, and the range of the force capable of being borne by the connecting plates is enlarged; by means of the reinforcing ribs, the functions of protection, support and deformation avoiding on the connecting plates are achieved, vertical plates are connected with the lifting lug faces and the welding faces, and angular variations of the lifting lug faces and the welding faces are avoided.

The present invention relates to a high-performance asphalt composition and a preparation method thereof, wherein the high-performance asphalt composition comprises petroleum asphalt and polyimide powder accounting for 5-15% of the weight of the petroleum asphalt, and the polyimide powder has a particle size of 400-500 mesh, and is self-end-capping trapezoidal polysiloxane modified polyimide powder. According to the present invention, the high-performance asphalt composition has advantages of crack resistance, rutting resistance and flame retardancy, and cannot produce penetration or crackingin a low temperature and humid environment.

The invention relates to underground comprehensive mechanized coal mining work surface support equipment for a coal mine, in particular to a backstop gangue beam suspension swinging beam type gangue filing hydraulic support frame with a side protection plate for goaf filling. The hydraulic support frame comprises a front top beam, a back top beam, a front upright post, a back upright post, an upper connecting rod, a front connecting rod, a back connecting rod and a base, wherein the back top beam is hinged with one end of the front top beam, a backstop gangue beam with a side protection plate is also hinged on the back end of the base, a telescopic swinging beam is hinged on the backstop gangue beam with the side protection plate, the telescopic swinging beam is suspended in the air through a swinging beam jack, in addition, the angle is adjusted, and the side protection plate of the backstop gangue beam with the side protection plate can be opened to two sides or the single side through the lateral pushing of the jack or other external force during the support frame filling, so a sealed separation plate is formed between the support frames, and sundries such as gangue and the like are prevented from entering the front side of the support frames.

The invention relates to a four-column and double-swing-beam type gangue filling hydraulic support, comprising a front top beam, a Y-shaped upper connecting rod, a rear top beam hinged with the front top beam, columns, a balance jack, a swing beam, a swing beam jack, a rear connecting rod, a front connecting rod, a base, a pushing frame, a pushing jack, an upper swing beam jack and an upper swing beam, wherein the columns are supported between the front top beam and the base and between the rear top beam and the base; the upper end of the Y-shaped upper connecting rod is hinged on a hinged point of the front top beam and the rear top beam; the Y-shaped upper connecting rod, the front connecting rod, the rear connecting rod and the base are hinged in pairs to form a four-connecting-rod structure; the upper part and the lower part of the swing beam jack are hinged with the rear top beam and the swing beam respectively so as to regulate the swing beam; one end of the upper swing beam jack is hinged with a lug at the rear end of the rear top beam, and the other end of the upper swing beam jack is hinged with the upper swing beam. According to the four-column and double-swing-beam type gangue filling hydraulic support, not only a top plate is supported during the coal mining, but also a mined-out area is filled, so that the supporting operation and the filling operation are integrated.

The invention discloses a supporting mechanism for a machine tool cutter and relates to the field of machine tool machining. The supporting mechanism comprises a movable base and a supporting part, wherein the movable base is arranged on the bottom side of the cutter and makes flexible motion towards the cutter, and the supporting part is arranged on the movable base; and particularly in the period of reloading a workpiece or in the machine tool stopping period and the cutter returns to a normal position in the machining process, the movable base is extended out to reach the highest position, the cutter is supported on a horizontal axis by the supporting part, and thus the problem that the machining accuracy of the cutter is affected due to the deflection deformation caused by the long-time suspension of the cutter is avoided.

The invention discloses an open hole segmented acid fracturing easy-to-drill well completion production tubular column and a working method thereof. The open hole segmented acid fracturing easy-to-drill well completion production tubular column comprises an oil pipe, a packer, an easy-to-drill releasing device, an easy-to-drill oil pipe, easy-to-drill packer sieve tube sliding sleeve groups, an easy-to-drill setting ball seat and an easy-to-drill floating shoe which are sequentially connected from top to bottom. Each easy-to-drill packer sieve tube sliding sleeve group comprises an easy-to-drill open hole packer, an easy-to-drill temporary plugging sieve tube and an easy-to-drill fracturing sliding sleeve which are connected from top to bottom, and the number of the easy-to-drill packer sieve tube sliding sleeve groups is at least one. Each easy-to-drill temporary plugging sieve tube comprises a base pipe, a coupling and soluble plugs, wherein the base pipe adopts a circular pipe column, holes are uniformly drilled in a pipe body of the base pipe, and the soluble plugs are arranged in the holes and tightly connected and fixed to the holes. A check valve is arranged in the easy-to-drill floating shoe. According to the open hole segmented acid fracturing easy-to-drill well completion production tubular column and the working method thereof, rapid and convenient drilling treatmentcan be realized, a well wall can be effectively supported, pipe column sand burial caused by the collapse of the well wall is prevented, various designs are provided for the internal structure, and different requirements are met.

The invention discloses an underground mould bag pile supporting method. The method includes the following steps that (1), pore-forming is conducted by using a drilling machine to form a mold bag hole, an injection pipe is arranged in the mold bag hole, a grouting outlet hole is formed in the injection pipe, the injection pipe is internally provided with a separator, a mold bag is arranged in themiddle rear section of the injection pipe, at least one grouting outlet hole formed in the injection pipe communicates with the mold bag, a draining pipe is arranged between the rear section of the mold bag and the outer wall of the injection pipe, and the front section of the injection pipe includes a segmented mold bag; (2), first grouting equipment is firstly used for injecting first grout intothe injection pipe to make the mold bag be saturated, then second grouting equipment is used for injecting second grout into the injection pipe, and the second grout flows out of the injection pipe from a front grouting outlet hole; and (3), grouting is conducted on the mold bag hole alternately, and grouting is conducted on a mold bag pile I firstly, and then grouting is conducted on a mold bagpile II after a mold bag I expands fully and achieves certain strength until a mold bag pile supporting wall structure is formed. The underground mould bag pile supporting method has the advantages ofbeing good in stress condition, capable of stopping water, capable of effectively controlling excavation subsidence and the like.

The invention discloses a support device for a fender of a tracked armored vehicle, and belongs to the technical field of armored vehicles. The support device for a fender of a tracked armored vehicle improves the maintenance performance of the tracked armored vehicle, and saves the auxiliary maintenance time of the motion system of the tracked armored vehicle. The support device for a fender of a tracked armored vehicle comprises three parts, namely steel wire brackets (1), a base (2) and a support hinge (3), wherein the steel wire brackets (1) are installed in the holes on both sides of the base(2), and the support hinge (3) is connected with the body of the fender through rivets. When the motion system needs to be inspected and repaired, the fender can be turned over, and is supported through the steel wire brackets (1) and arranged in a semicircular seat of the support hinge (3). The support device for a fender of a tracked armored vehicle can be applied to most fenders of tracked armored vehicles; by means of the support device for a fender of a tracked armored vehicle, turning up and later quick fixing of the fender can be achieved, so that the inspection and maintenance of the motion system are facilitated.

A sliding type supporting arm mechanism of a lifting machine is installed on a carrier platform of the lifting machine. Two carrier plates are arranged on the carrier platform in parallel. The sliding type supporting arm mechanism comprises guide grooves formed in the inner sides of the carrier plates, the front portion and the back portion of each carrier plate are provided with the guide grooves, each guide groove is provided with a sliding supporting arm, and each sliding supporting arm comprises a sliding block and a supporting arm body, wherein the sliding block is installed in the corresponding guide groove, a bolt installing base is arranged inside the sliding block and located inside the corresponding guide groove, one end of the supporting arm body is connected with the corresponding bolt installing base through a bolt, and the supporting arm body is provided with a supporting block in a sliding mode. The sliding type supporting arm mechanism of the lifting machine is simple in structure and easy to install, the supporting arm bodies can swing, the swing axis points can move front and back, the unfolded area of the supporting arm bodies is increased, the lifting machine can support a larger chassis area of a vehicle, the adjusting range is enlarged, and the application range of the lifting machine is widened.

The invention discloses a canine tooth spliced type multi-union ecological purification pond which comprises a purification pond, a plurality of porous purification bricks, aquatic plants and a plurality of baffle strips, wherein the water inlet of the purification pond is communicated with a canal; the plurality of the baffle strips are arranged at the bottom of the purification pond; the bottomof the purification pond is partitioned into a plurality of long-stripy zones by the plurality of the baffle strips; the aquatic plants and the porous purification bricks are fixed at intervals amongthe plurality of the baffle strips; a plurality of porous purification bricks are arranged at intervals between adjacent baffle strips; two adjacent rows of the porous purification bricks are arrangedin a staggered manner. By adopting the purification pond, three water purification means of plant absorption, microorganism degradation and photocatalysis removal are integrated, a complementary purification mode can be achieved, concentrations of various pollutants in water bodies can be effectively reduced, and the water purification efficiency can be thus improved; the porous purification bricks are arranged in a canine tooth staggered arrangement mode, and water flows along a curve in the purification pond, so that not only is the water retention time of sewage in the purification pond prolonged, but also the water through quantity of the porous purification bricks is increased, and the water purification efficiency can be greatly improved.

The invention discloses a slope stabilization system for an ecological side slope in a semiarid plain terrain. The slope stabilization system comprises a slope roof supporting structure, a slope bottom blocking structure and a slope surface soil stabilization structure. The slope surface soil stabilization structure comprises a soil improvement foundation and a supporting frame, the soil improvement foundation is laid on an inclined plane of the ecological side slope, stacked ecological bags are laid on the upper surface of the soil improvement foundation, and the ecological bags are filled with plant growth matrixes. The upper end of the supporting frame is detachably connected with a longitudinal soil retaining plate, the lower end of the supporting frame is detachably connected with a retaining wall, and the supporting frame is used for compacting the ecological bags on the soil improvement foundation. The slope stabilization system for the ecological side slope in the semiarid plain terrain can improve the soil environment, has a high water retaining property, provides nutrients for plant growth, ensures rapid growth of plants, and plays a role in stabilizing the slope.

The invention discloses a method for connecting a pipeline into an existing box culvert. The method for connecting the pipeline into the existing box culvert comprises the steps that firstly, an inspection well is vertically arranged close to the outer side of the embedded box culvert; secondly, a horizontal maintenance passage is arranged between the box culvert and the inspection well, and the two ends of the maintenance passage are made to communicate with the box culvert and the inspection well correspondingly; and finally, a guide-in opening is formed in the side wall of the inspection well, and the pipeline stretches into the inspection well through the guide-in opening and finally extends into the box culvert through the maintenance passage. By the adoption of the method for connecting the pipeline into the existing box culvert, an old pipeline can be connected into the box culvert, and thus management is facilitated; meanwhile, a gap does not exist between an embedded sealing ring and the junction end face of the box culvert, so that water seepage is avoided; and when the joint of two box culvert deforms, a good waterproof function can still be achieved through the embedded sealing ring and a compression ring, so that water seepage at the junction of the box culverts is completely avoided, and the safety of the junction and normal operation are ensured during connecting construction of the box culverts.

The invention discloses a car seat headrest, and relates to the technical field of car trims in order to solve the technical problem that a car seat headrest in the prior art is low in comfort and safety. The car seat headrest comprises a headrest body, first protrusions, second protrusions and a headrest sleeve, the first protrusions and the second protrusions are arranged on the headrest body and located at the bottom area of the side on which the head and neck of a user lean, and the headrest sleeve covers the headrest body, the first protrusions and the second protrusions. The headrest sleeve comprises a slow springback sponge, and the slow springback sponge is arranged on the side on which the head and neck of the user lean. The first protrusions and the second protrusions are arranged in a spaced mode and located on the same horizontal plane. The car seat headrest is mainly applied to being produced and manufactured.

The invention relates to a supporting brake device, and concretely relates to a supporting brake device for assisting an electric vehicle. According to the supporting brake device for assisting the electric vehicle, people can park the electric vehicle conveniently, rollover is not prone to happening during steering, physical and psychological health of people is not affected, and harm is avoided.The supporting brake device for assisting the electric vehicle comprises: a vehicle body, wherein supporting seats are symmetrically installed on one side of the vehicle body; a driving shaft rotatably mounted between the two supporting seats; and two wheels, wherein one wheel is installed on the driving shaft, and the other wheel is installed on the vehicle body in a rotating mode. The device issupported through a supporting mechanism, when people drive the device to move through the wheels, meanwhile, the wheels drive a transmission mechanism to operate through the driving shaft, the transmission mechanism operates to drive the supporting mechanism to operate, and the supporting mechanism operates to stop supporting the device, so that people can park the electric vehicle conveniently,and rollover is avoided.

The invention discloses a supporting device for an electric automobile. The supporting device comprises lifting supporting arms, a limiter and two lifting stand columns which are oppositely distributed, a transverse beam is fixed to the tops of the inner side faces of the two lifting stand columns, a driving mechanism for controlling the lifting supporting arms to ascend and descend is fixed to the side surface of one lifting stand column, and the driving mechanism comprises a hydraulic oil pot and a copper core motor. The supporting device has the beneficial effects that through a designed auxiliary mechanism, the mounting efficiency of the limiter can be improved, and tilt of mounting of the limiter can be prevented; a protective pad is arranged on the outer wall of the limiter so that limiting protection when the electric automobile ascends can be better achieved through the protective pad; through a designed supporting mechanism, supporting of the hydraulic oil pot can be better achieved, and occurrence of the problem that supporting of the hydraulic oil pot is insufficient is reduced; and ventilation ports and ventilation holes are formed in the supporting block so that air circulation can be facilitated through the ventilation ports and the ventilation holes, and the risk of being affected with damp in the bottom of the hydraulic oil pot can be reduced.

The invention provides a battery and a battery preparation method. The battery comprises a housing, wherein the housing comprises a first accommodating cavity, a cover plate and a first roll core assembly; the first accommodating cavity comprises a first opening; the cover plate is used for sealing the first opening; the first roll core assembly is arranged in the first accommodating cavity and comprises a first laminated roll core, a second laminated roll core and a connecting piece, the first laminated roll core comprises a first roll core main body and a first roll core tab connected with the first roll core main body, the second laminated roll core comprises a second roll core main body and a second roll core tab connected with the second roll core main body, one end of the connectingpiece is connected with the first roll core tab and the second roll core tab, the other end of the connecting piece is connected with the cover plate, and the first roll core tab and the second roll core tab are respectively connected to different parts of the connecting piece.

The invention discloses an air purification high-frequency pulse ultraviolet beam adjusting device. The air purification high-frequency pulse ultraviolet beam adjusting device comprises a first shell,and the bottom of the first shell is fixedly connected with a cabinet body. The inner side wall of the first shell is fixedly connected with a plate body, the inner side wall of the plate body is connected with a second shell in an embedded mode, and an air cylinder is arranged in the second shell. During use, the air cylinder is started to operate, a piston rod of the air cylinder drives an ultraviolet filter to ascend and descend, a connecting rod drives a sliding block to move up and down in a guide rail during ascending and descending, and the ultraviolet filter can be supported during moving. Meanwhile, a dust sticking pad can play a role in adsorbing floating dust or dust in air during contact. A dust removal effect is achieved by starting an air blower and holding a spray head by hand to blow the inner part of the first shell or the inner part of the cabinet body. After the dust sticking pad is used, an operator can slide two L-shaped rod bodies to take the L-shaped rod bodiesout of through holes, so that the dust sticking pad is pulled out of the first shell, and replacement of the dust sticking pad is completed.

The invention relates to a novel brush worktable plate. The novel brush worktable plate comprises a worktable plate body mounted on a work frame, a plurality of ball pits are formed in the upper surface of the worktable plate body, movable steel balls are mounted in the ball pits, the upper surfaces of the movable steel balls protrude out of the worktable plate body, a plurality of brush bundles are further arranged on the upper surface of the worktable plate body, and are fixedly placed in brush holes in the upper surface of the worktable plate body, the multiple brush bundles are evenly distributed on the periphery of the multiple movable steel balls, and the upper ends of the brush bundles stretch out upwards to be higher than the upper surfaces of the movable steel balls. The novel brush worktable plate is simple in structure, when a board is thin, the weight is small, due to the fact that the upper ends of the brush bundles are higher than the upper surfaces of the movable steel balls, the brush bundles carry out complete supporting, and the board can be effectively prevented from being scratched by the worktable plate body in the moving process; when the board is thick, and the weight is large, the board compresses the brush bundles, the brush bundles deform, at the moment, the movable steel balls can achieve the effective supporting effect, and therefore the brush bundles are protected, plastic deformation of the brush bundles is reduced, the service life of the worktable plate is prolonged, and the surface of the board is better protected against scratching.

The invention discloses a supporting mechanism for a machine tool cutter and relates to the field of machine tool machining. The supporting mechanism comprises a movable base and a supporting part, wherein the movable base is arranged on the bottom side of the cutter and makes flexible motion towards the cutter, and the supporting part is arranged on the movable base; and particularly in the period of reloading a workpiece or in the machine tool stopping period and the cutter returns to a normal position in the machining process, the movable base is extended out to reach the highest position, the cutter is supported on a horizontal axis by the supporting part, and thus the problem that the machining accuracy of the cutter is affected due to the deflection deformation caused by the long-time suspension of the cutter is avoided.

The utility model relates to a waterproofing device suitable for the thermal expansion and cold contraction of the outer PE sheath outside a stay cable, comprising a waterproofing umbrella, matching screw or bolt pairs and a sliding inner liner; The waterproof umbrella is left-right type, the joint is straight line or tooth shape or broken line, the two-half type waterproof umbrella is fixed by screws or bolts, and is connected to form an umbrella-shaped waterproof object; An upper end of that waterproof umbrella is fasten and fixed on a PE sheath out of the cable through screws or bolts, A sliding liner made of a material having a small sliding friction coefficient in contact with the sealing cylinder is installed in a mounting groove (III) in the lower part of the waterproof umbrella, The sliding liner can slide freely on the cable sealing cylinder with the thermal expansion and cold contraction of the PE sheath, so that the waterproof umbrella of the waterproof device can slide up and down with the thermal expansion and cold contraction of the PE sheath. The waterproofing device can play a waterproofing and sealing role at the transition outlet between the front end of the anchor and the outer PE sheath of the cable, and has the advantages of simple installation, long service life and guaranteed cable body life.

The invention provides a heat exchange device and an air conditioner. The heat exchange device comprises a first heat exchange pipe and a second heat exchange pipe; the first end of the first heat exchange pipe communicates with the outside; the second heat exchange pipe is located in a surrounding area of the first heat exchange pipe, the first end of the second heat exchange pipe communicates with the second end of the first heat exchange pipe, and the second end of the second heat exchange pipe communicates with the outside; due to the fact that the second heat exchange pipe is located in the surrounding area of the first heat exchange pipe, the second heat exchange pipe does not extend out of the outer side of the outer edge of the first heat exchange pipe, the size of the heat exchange device is not changed on the basis of increasing the heat exchange area, a larger installation space does not need to be provided for the heat exchange device, the situation that the size of the airconditioner with the heat exchange device is large is avoided, and therefore the heat exchange effect of the heat exchange device is effectively improved on the basis that the size of the heat exchange device is not changed.

The invention relates to the technical field of tire processing, and discloses a waste tire slitting device. The waste tire slitting device comprises a rack, and a conveying unit, a cutting unit and adust removing unit are arranged on the rack, wherein the conveying unit comprises a driving wheel and a conveyer belt; the cutting unit comprises a hollow first rotating shaft and a driving mechanism; through holes are formed in the first rotating shaft; a cutter is fixedly connected to the first rotating shaft; hollow supporting blocks are arranged on the rack; the first rotating shaft is rotatably connected to the supporting blocks and communicates with the supporting blocks; the dust removing unit comprises a dust collection box; a partition is fixedly connected in the dust collection box;filter holes used for filtering flying dust are formed in the partition; the partition divides the dust collection box into a first cavity and a second cavity; a first air outlet is formed in the first cavity; the second cavity communicates with the supporting blocks; a negative pressure blade is rotatably connected in the first cavity; the negative pressure blade is coaxially connected with a first gear; and a second gear which meshes with the first gear is coaxially connected to the driving wheel. According to the waste tire slitting device, flying dust can be collected and the cutter can be cooled during cutting.