84results about How to "Avoid direct force" patented technology

The invention relates to a detachable light bracing trellis, which comprises at least two support bars and a plurality of cross bars and / or diagonal ties and / or cross holdfasts which are respectively connected between the two support bars, connecting positions between each cross bar or diagonal tie or cross holdfast and the support bar are respectively provided with a connecting structure which are detachably connected on the support bars. The invention adopts a connecting disc structure and a connecting fastener structure which can be assembled and disassembled between the support bars and the cross bar or the cross holdfast, and the firmness and reliability of the connecting are strengthened by the detachable connection of the connecting disc and the support bars, and the invention can effectively adopt light aluminum alloy sections, electron alloys sections, steel casting, aluminum pressure castings, and multiple tubes such as steel pipes, plastic-aluminum tubes and the like to make various monotowers or double towers or trellis which are adapt to various environments with high casualness and durability, and are not easy to bounded with foreign matters such as cement and the like, and are convenient for climbing stairs, walking stairs or platforms, and the monotowers or double towers or trellis are applicable to the employment of occasions with various heights.

The invention relates to an inspection well, in particular relates to an inspection well for maintaining a pipeline and removing sludge. The inspection well belongs to the field of municipal engineering and solves the problems of low compression strength, easiness for leakage and large construction difficulty of the conventional inspection well. The inspection well comprises a well cover and a base, wherein the well cover is nested on the base; and a well opening is arranged at the middle of the base. The inspection well further comprises a retainer ring, a well cylinder and a bearing pipe; the well cylinder is a corrugated pipe made of metal; the bearing pipe is another corrugated pipe made of the metal; zinc plated layers are respectively arranged on the inner wall surface and the outer wall surface of the well cylinder and the inner wall surface and the outer wall surface of the bearing tube; the retainer ring is sleeved on the well cylinder; the base is arranged on the upper end surface of the retainer ring; the well opening and the well cylinder are coaxially arranged; a connection hole is formed on the pipe wall of the bearing pipe; the lower end of the well cylinder is arranged on the connection hole of the bearing tube; the well cylinder and the bearing pipe are integrally manufactured; and tube openings at both ends of the bearing tube are detachably connected with a pipeline which is pre-embedded under the ground. The inspection well is used for drainage pipelines in the municipal engineering.

The invention discloses a reinforced concrete shear wall and a construction method thereof, and belongs to the technical field of civil engineering construction. The reinforced concrete shear wall comprises a first fixing plate, wherein the top of the first fixing plate is connected with a supporting rod, the top of the supporting rod is connected with a cylinder, the output end of the cylinder isconnected with a pull rod, a through hole matched with the pull rod is formed in the top of the first fixing plate, the end, away from the cylinder, of the pull rod penetrates through the through hole and is connected with a connecting box, connecting rods are rotationally connected to the inner walls of the two sides of the connecting box, second fixing plates are fixedly connected to the two ends of the first fixing plate, sliding plates are slidably connected to the outer walls of the two second fixing plates, the ends, away from the connecting box, of the connecting rods are connected with the sliding plates, clamping plates are connected to the bottoms of the sliding plates, and wood formworks are connected to the outer walls of the clamping plates. According to the invention, the cylinder is used for controlling the clamping plates to clamp the wood formworks, the clamping distance between the wood formworks can be adjusted, the use requirement is met, nails are not needed for fixing, and dismounting and mounting are convenient.

The invention discloses a PCB connecting plate welding fixture for charger production. The PCB connecting plate welding fixture comprises a baseplate. The top center of the baseplate is provided witha limiting groove. A workbench is arranged on the inner side of the limiting groove. Uniformly distributed H-shaped blocks are installed on the bottom of the workbench. A guide rod is arranged on theinner side of each H-shaped block. The top end of the guide rod is provided with a spring in a nested way. A chuck is arranged on the bottom end of the guide rod in a penetrating way. Two buffer postsare arranged on the inner side of the chuck. An upper cavity is arranged in each buffer post. The problem that the existing PCB connecting plate welding fixture generally performs direct clamping anddirectly uses the action force on that PCB connecting plate, the clamping pressure is high and the PCB connecting plate is liable to be extruded to deform; meanwhile, the existing PCB connecting plate welding fixture is directly placed on the workbench surface and does not have certain buffering capacity, and the PCB connecting plate is liable to be damaged by the force when the welding pressureis high.

The invention discloses a series parallel ankle recovery machinery and using method thereof. The series parallel ankle recovery machinery comprises a supporting platform driven by a rotating driving device, wherein the supporting platform is vertically provided with three or more than three longitudinal lifting driving devices, and a ball joint at the top of the longitudinal lifting driving device is used for an action platform for placing feet. The series parallel ankle recovery machinery has the advantages of simple structure, small volume and light weight. As the movement trajectory planning controls four motor drives, the series parallel ankle recovery machinery can not only realize the patient's ankle rehabilitation of plantar flexion, dorsiflexion, introversion, extroversion, abduction and adduction movement, but also by controlling the cooperation change of motor output to achieve complex compound motion to promote the repair of damaged parts.

The invention belongs to the field of communication cables, and particularly relates to an optical cable. The optical cable comprises a sheath layer, a structure buffer layer, a beam tube and an optical fiber layer which are sequentially arranged from outside to inside, the optical cable radial cross section of the structure buffer layer main body is polygonal, the edge part of the structure buffer layer main body is provided with an inner buffer structure protruding outwards, the sheath layer wraps the outer layer of the structure buffer layer, and the inner surface of the sheath layer is provided with an outer buffer structure corresponding to each inner buffer structure; the inner buffer structure comprises at least three edge structures, a middle edge in the center of the inner buffer structure protrudes outwards in the radial direction of the optical cable, side edges are arranged on the two sides of the middle edge, and the inner ends of the side edges and the inner end of the middle edge are connected to the edge portion of the structure buffer layer. The outer buffer structure is provided with an opening, the opening abuts against the side edge, the outer buffer structure is provided with a middle groove in the radial direction of the optical cable, and the outer end of the middle edge of the inner buffer structure extends into the middle groove. The compression resistance of the optical cable can be effectively improved, and meanwhile the problem that the specific gravity of the optical cable is excessively increased is solved.

A self-locking device for correcting the deformity of teeth has a main body with bottom plate, the working slot in which the correcting wire is arranged, the fixing structure at both sides of said working slot, and a cover. Its advantages are small size, and no damage to oral cavity.

The invention provides a temperature sensor used for a numerical control machine tool thermal error test. The temperature sensor comprises a neodymium iron boron magnetic shell, a circuit board, a temperature sensing chip and a twisted-pair double-shielding cable wire. The circuit board is fixed in the middle part of the internal cavity of the neodymium iron boron magnetic shell. The temperature sensing chip is welded at the lower side surface of the circuit board and connected with the bottom part of the neodymium iron boron magnetic shell, and high-thermal-conducting glue is smeared on the bottom part. The internal side of high-thermal-conducting glue is fit with the temperature sensing chip, and the external side is attracted on the temperature sensitive points of a numerical control machine tool via the neodymium iron boron magnetic shell. The twisted-pair double-shielding cable wire penetrates through the neodymium iron boron magnetic shell and is welded on the circuit board. Resin used for thermal insulation fully fills the gap of the internal cavity between the temperature sensing chip and the circuit board and the neodymium iron boron magnetic shell. Temperature measurement is performed on the temperature sensitive points of the numerical control machine tool by the temperature sensing chip via high-thermal-conducting glue. The circuit board transmits temperature signals to the outside via the twisted-pair double-shielding cable wire. The temperature sensor used for the numerical control machine tool thermal error test has advantages of being convenient and reliable in installation, high in precision, great in stability, high in anti-interference and suitable for measurement of temperature of the thermal sensitive points of the numerical control machine tool thermal error test.

The invention relates to a pseudo-flow dividing aluminum profile hot extrusion mould which belongs to the large cantilever class and is used for the hot extrusion of aluminum products with higher request to the profile surface of the large cantilever. The mould comprises a guide plate (1), a mold surface (2) and a mold pad (3), the feeding surface of the diversion plate (1) is uniformly distributed with flow-dividing holes (1.1), a discharge surface is provided with a bridge down position (1.2), the middle of the discharge surface is provided with a pseudo mold core (1.3), the middle of which is provided with a screw hole (1.4), the middle of the mold surface (2) is provided with the large cantilever (2.3), the peripheral feeding surface of the mold surface of the large cantilever (2.3) is provided with a mold cavity (2.1), the discharge surface is provided with a discharge hole (2.2), the middle of the large cantilever (2.3) is provided with a lock screw hole (2.4), the middle of the large cantilever (2.3) of the mold surface (2) is locked on the pseudo mold core (1.3) of the guide plate by lock screw (4), the middle of the mold pad (3) is provided with a discharge hole (3.1), the shape of which is matched with that of the discharge hole (2.2) of the mold surface (2), and the discharge hole (3.1) of the mold pad (3) is larger than the discharge hole (2.2) of the mold surface (2). The mold can produce the aluminum profile in the large cantilever class, with good surface quality, low production cost and long service life in the large cantilever class.

The invention provides a chassis structure of a sliding block type wheel set orbital robot. The chassis structure comprises a bottom plate, wherein the bottom plate is horizontally arranged below an orbit, and the axis of the bottom plate is consistent with the axis direction of the rail; and linear motion wheel sets, wherein the linear motion wheel sets are located above the bottom plate, and mounted on the orbit and make contact with the outer side face and the upper surface of the orbit, the number of the linear motion wheel sets is two, and each pair of linear motion wheel sets is arrangedby taking the axis direction of the orbit as the symmetry axis; each linear motion wheel set comprises a linear sliding mechanism located on the lower portion, a mounting mechanism fixed to the linear sliding mechanism and a rotating wheel mechanism arranged above the linear sliding mechanism and located below the mounting mechanism. The chassis structure of the sliding block type wheel set orbital robot provided by the invention, solves the problem that the existing wheel set has large impact on the motor when the orbital robot is blocked or during steering.

The invention relates to the field of winding pipe production equipment, in particular to PP winding pipe production equipment with a braking component. The PP winding pipe production equipment comprises a diameter adjusting structure, a first stretching and contracting structure, a second stretching and contracting structure, a guiding structure, a braking structure and a lubricating structure, wherein use of the diameter adjusting structure facilitates to adjust the position of the first stretching and contracting structure rapidly, meanwhile, a bolt of the adjusting position is avoided frombeing subjected to force directly, and the position adjusting efficiency and quality of the first stretching and contracting structure are greatly improved; by means of the arrangement of the brakingstructure, the pressure on cooling water is reduced, the cooling water is made to be poured on the guiding structure better, the water pouring amount is increased, splashing of the cooling water on arubber strip is effectively avoided at the same time, and the rubber strip is avoided from being pasted to the guiding structure; and the lubricating structure is arranged at the end portion of the second stretching and contracting structure and is connected to the braking structure, the use of the lubricating structure facilitates resetting of the braking structure, and by means of the use of the braking structure, the fact that the lubricating structure is driven to lubricate the guiding structure while the cooling water is sprayed is facilitated.

The invention relates to a small waterline plane double-body leisure houseboat with multifunctional submerged body support. The small waterline plane double-body leisure houseboat comprises a boat house and a connecting bridge hull, wherein two multifunctional submerged body support systems are arranged on both sides of the connecting bridge hull; submerged bodies of the multifunctional submergedbody support systems are connected with retractable stay bar systems; the conversion of a three-body boat type and the small waterline plane double-body boat type is realized through the retraction and lowering of the retractable stay bar systems; propellers are installed at the tail of the submerged bodies, and ballast water tanks, control systems and underwater power systems are installed in thesubmerged bodies; and lifting stand column mooring systems are fixed around the boat house and the submerged bodies of a connecting bridge, and the lifting stand column mooring systems realize berthing of the three-body boat type, berthing of the small waterline plane double-body boat type and berthing of stand columns through lifting of the stand columns of the lifting stand column mooring systems, matching with stabilizer fin on the submerged bodies and positioning of a locking mechanism installed on the boat house. The small waterline plane double-body leisure houseboat meets the need of providing open deck space for sightseeing, and provides the need of comfortable enjoyment for passengers during traveling and berthing in waves.

The invention belongs to the field of building decoration ceilings and particularly relates to a large-span net ceiling system and a mounting method thereof on account of the problems that the large-space attractiveness effect is affected by the exposure of roof trusses and support systems, and increased decorative ceilings are limited by suspension rod support roof truss stress. The system comprises a cable net structure, a net ceiling and a plurality of snapping sheet connectors. The cable net structure is arranged on a structural ring beam and is woven through a plurality of pre-stress processed steel cables, and the net ceiling is fixed on the cable net structure through the snapping sheet connectors. By means of the system and the mounting method, the net ceiling gravity can be transferred to the structural ring beam through the cable net structure, the form of transferring of the net ceiling gravity to the roof truss structure through the ceiling and a transfer layer in the prior art can be cancelled, and the cable net structure can be hidden above the net ceiling, so that the project quality and the attractiveness of the net ceiling are guaranteed.

The invention belongs to the technical field of six-degree-of-freedom mechanical structures, and particularly relates to a six-degree-of-freedom platform and application thereof. The six-degree-of-freedom platform comprises a base, a movable platform and six driving devices for connecting the base with the movable platform, wherein any one of the six driving devices is used for driving the movableplatform to complete six-degree-of-freedom movement; each driving device comprises a hydraulic cylinder, a first hinge beam and a second hinge beam hinged to the first hinge beam, one end of the hydraulic cylinder is connected with the first hinge beam, the other end of the hydraulic cylinder is connected with the second hinge beam, and the hydraulic cylinder is used for changing the angle between the first hinge beam and the second hinge beam; and the first hinge beams and the second hinge beams are rotationally connected with the base and the movable platform correspondingly. According to the six-degree-of-freedom platform and the application thereof, the hinge structure formed by the first hinge beams and the second hinge beams is used for realizing the speed amplification of the linear movement of piston rods of the hydraulic cylinders, so that the stable and safe work of the hydraulic cylinders is guaranteed, and the service life of the hydraulic cylinders is prolonged.

The invention discloses a novel street lamp lampshade which comprises a street lamp lampholder and a street lamp lampshade arranged on the street lamp lampholder. The street lamp lampshade is coveredwith an outer cover, the outer cover is arranged on the street lamp lampholder, a washing device is arranged outside the outer cover and fixed to the street lamp lampholder, and the washing device includes a water storage tank, a water pump disposed on the side wall of the water storage tank and a water spraying structure connected with the water outlet end of the water pump. The water storage tank is fixed to the street lamp lampholder. The water spraying structure includes a water distributing pipe connected with the water outlet end of the water pump, the two ends of the water distributingpipe are communicated with water outlet pipes, the tail ends of the water outlet pipes are provided with spray heads, and the spray heads are provided with a plurality of water outlet holes. Accordingto the novel street lamp lampshade, the technical problems that in the prior art, when a lampshade cleaning brush is used to clear the lampshade, during insect spot and insect stain clearing, an acting force of a lampshade cleaning brush on the lampshade often needs to be increased to clear away insect spots and insect stains, so that the acting force of the lampshade cleaning brush is too largeand the lampshade breaks easily are solved.

The invention provides a steel cable supporting net for a large-span net shaped ceiling system, and aims at solving the problems that the exposed house frame and supporting system of the open type light roof in the existing public building influence the artistic effect of the large space, and the added decorative ceiling is limited by the stressing of the lifting rods supporting the house frame. The steel cable supporting net comprises a plurality of steel cables and a plurality of adjustable length mechanisms, wherein the steel cables are knitted into a net shape; the end parts of the steel cables are arranged between structure ring beams through the adjustable length mechanisms. According to the steel cable supporting net, the gravity of a net shaped ceiling is transferred to the structural ring beams, thus the form of transferring the gravity of the net shaped ceiling to the house frame structure through a ceiling and a conversion layer in the prior art can be replaced, and the house frame is free of stressing; a plurality of clamp connecting parts for suspending the net-shaped ceiling are arranged on the steel cables; the knitting direction of the steel cables are corresponding to the style direction of the net-shaped ceiling, and therefore, the steel cable supporting net can be hidden above the net-shaped ceiling, and the problem that the lifting rods cannot be hidden in the traditional scheme can be solved.

The invention discloses a cutting device which comprises an upper pressing plate, a cutting die and a cutting shaft. An installing groove provided with a downward opening and extending in the length direction of the upper pressing plate is formed in the upper pressing plate. The cutting shaft is located in the installing groove of the upper pressing plate. The cutting die is connected with the portion, extending out of the opening of the installing groove, of the cutting die, and the cutting die is located under the upper pressing plate. The upper pressing plate is provided with a stress surface making contact with the upper surface of the cutting die. According to the cutting device, the upper pressing plate can be directly used as a punch by forming the installing groove in the upper pressing plate and installing the cutting shaft in the installing groove, a punch steel piece does not need to be assembled, and the weight of the cutting device can be effectively reduced so that the moving speed of the cutting device can be increased. Meanwhile, the structure of the cutting device can be compact by arranging the cutting shaft in the installing groove so as to effectively decrease the size of the cutting device; moreover, the cutting die can directly transmit the top pressure borne by the cutting die to the upper pressing plate, so that the cutting shaft is prevented from being directly stressed, and the service life of the cutting shaft can be effectively prolonged.

The invention discloses a method for embedding an optical fiber for testing internal force of a cast-in-place pile by an acoustic testing pipe. The method comprises the following steps that 1, an optical fiber embedding device is manufactured; 2, a steel wire rope is connected with the optical fiber embedding device, and the optical fiber is wound; 3, the optical fiber is bound; 4, the acoustic testing pipe is grouted; 5, the optical fiber is lifted downward; and 6, the steps 1 to 5 are repeated to complete the embedding of the optical fiber in the other acoustic testing pipe. According to themethod, the design is reasonable, the influence on the construction of the cast-in-place pile is less, the accuracy of strain test of the cast-in-place pile is ensured, and the subsequent analysis ofthe internal force of the cast-in-place pile is convenient.

The invention belongs to the technical field of data lines, in particular to a data line. The data line comprises a line body, a braided outer layer, a plastic soft layer, a power line, an aluminum foil shielding layer, a first plug, a second plug, a first outer shell, a second outer shell, a buffer spring, an internal thread plastic sleeve, an external thread fixing soft sleeve, a finger collar,a fixing block, a fine hole, a fixed U-shaped seat, a movable socket, a threaded round tube, bolt, a rubber block, a tensile string, a rubber granular layer, a strip chute, a cutting, a circular ring,a bending buffer section and an oil liquid layer. The data line is reasonable in structure, when a mobile phone is charged, a mobile phone engaging limiting structure can be engaged with the bottom portion of a mobile phone to provide clamping for the two sides of the bottom portion of the mobile phone, separation is avoided during charging, or shaking is generated at the connection of the charging interface of the second plug and the mobile phone, wearing is avoided, and through sliding of the strip-shaped chute and the cutting, the adjusting of the distance between the fixed U-shaped seat and the movable groove seat can be achieved, and therefore, the data line can be applied to mobile phones with different sizes and widths.

The invention discloses an anti-vibration mobile cutting machine for a self-insulating block assembly line, which comprises two slide rails arranged in parallel and a cutting machine for cutting self-insulating block blanks slidably arranged on the slide rails. The cutting machine includes a frame, a traveling mechanism for driving the cutting machine, a cross-cutting mechanism for cutting off the upper and lower end faces of the self-insulating block body, and a mechanism for cutting off the side end faces of the self-insulating block body and turning the self-insulating block body The block body is divided into equal parts and blocks; the equipment adopts wet cutting, which not only greatly improves the production efficiency, but also produces smooth and beautiful blocks, the labor cost is reduced, and the labor intensity is low. It is operated by a single person, and no dust is generated during the production process, which is consistent with the company's goal of building a green and environmentally friendly factory.

The invention discloses a light suspension type track robot chassis. The light suspension type track robot chassis comprises driving assemblies, side plate assemblies, guide support assemblies, armorshells, circuit board assemblies, locking rod assemblies and a central mounting plate, wherein the bottoms of the two side plate assemblies are symmetrically fixed at the two ends of the central mounting plate correspondingly, the two driving assemblies are fixed at the central positions of the outer sides of the two side plate assemblies correspondingly, the two guide support assemblies are symmetrically fixed on the top surface of the central mounting plate correspondingly and are parallel to the short side of the central mounting plate at the same time, furthermore, gaps are reserved between the two guide support assemblies and the two side plate assemblies, the two circuit board assemblies are correspondingly open and inwards fixed to the inner sides of the two guide support assemblies, the two armor shells are correspondingly fixed on the outer sides of the two guide support assemblies and are wrapped around the two guide support assemblies, and the two locking rod assemblies arearranged in parallel and are used for connecting and locking the two side plate assemblies. The light suspension type track robot chassis is light and compact in structure, small in size, good in invisibility, convenient to carry, capable of being detached from a track at any time and convenient to disassemble, assemble, transport and maintain.

The invention relates to an advertisement display box. The advertisement display box comprises a box body and a base, wherein the base is used for supporting the bottom part of the box body; the basecomprises legs and a protective casing, the legs are fixedly connected with the box body, and the protective casing is fixedly connected with the legs; through holes are formed in the protective casing, and the legs penetrate through the through holes and enter the protective casing; the protective casing is also provided with a first matching surface and a second matching surface, the first matching surface is mutually attached with the peripheral surface of the box body, and the second matching surface extends along the first matching surface and is used for receiving the legs exposed out ofthe protective casing; each through hole is formed in the first matching surface. By adopting the creative design, the advertisement display box has the advantages that the legs for supporting the box body are hidden in the protective casing, and are not exposed, and the first matching surface of the protective casing is tightly attached with the peripheral surface of the box body, so that the structure of the whole advertisement display box is compact, and the appearance is attractive.

The invention relates to a cutting machine with a movable backup plate, comprising a work table, a saw cutting unit with a saw blade, a guide rail installed at the side edge of the work table and a movable backup plate unit. The movable backup plate unit comprises a backup plate, a gear meshed with the guide rail, a hooking part opposite to the gear and connected with the backup plate, a driving member connected with the gear and a fixing member, wherein the fixing member changes between a locking state and a releasing state relative to the driving member, when being in the locking state, the fixing member approximately limits the driving member and enables the driving member to be locked, when being in the releasing state, the fixing member is away from the driving member, enables the driving member to rotate and drives the backup plate to move, and therefore, a user cannot forget to release the fixing member due to negligence when wanting to rotate the driving member once more to adjust the position of the backup plate, the condition of directly applying force to rotate the driving member in the locking state is avoided, and the user can conveniently adjust the position of the backup plate.

The invention provides a semi-underground multiple-row lifting and transferring cubic garage, comprising a main frame spliced by a plurality of support beams and stand columns. The main frame is multi-row multi-column parking stalls including a pit layer and a ground layer. The ground layer parking stall is provided with a transverse vehicle carrying board and a first transverse driving mechanism used to control the transverse vehicle carrying board to move transversely. The pit layer parking stall is provided with a pit vehicle carrying board and a pit lifting driving mechanism used to control the pit vehicle carrying board to lift up and down. The first row parking stall support beam of the pit layer is provided with a pit additional plate, so that a vehicle on the rear row can access through the front row pit. Through using the front-row pit additional plate structure, vehicle can access without barrier from the rear row through the front row pit. Under the condition that area is not changed, the number of parking stalls is maximized.

The invention provides a high-sealing smooth load-bearing detection cable for a digital oil field. The high-sealing smooth load-bearing detection cable for the digital oil field comprises a cable body and a protective sleeve, the cable body comprises a copper wire, an insulating layer and a shielding layer, the insulating layer is arranged at the outer side of the copper wire, and the shielding layer is arranged at the outer side of the insulating layer; the protective sleeve is arranged at the outer side of the cable body, a waterproof layer is arranged at the outer side of the protective sleeve, and a supporting rod is fixedly connected between the waterproof layer and the protective sleeve; an anti-corrosion layer is arranged at the outer side of the waterproof layer, an inner armor layer is arranged at the outer side of the anti-corrosion layer, and a sealant layer is arranged at the outer side of the inner armor layer; an outer armor layer is arranged at the outer side of the sealing rubber layer, and the inner wall of the waterproof layer is fixedly connected with a reinforcing rod. The high-sealing smooth load-bearing detection cable for the digital oil field provided by the invention has the advantages that the anti-pressure capability is high, and the service life of the cable can be effectively prolonged.

The invention discloses a silent cloth finishing machine, comprising a tensile force detection device, a speed regulation device and photoelectricity delineation device; the tensile force detection device comprises a loop composed of a first chain wheel, a second chain wheel and a transmission chain; one side of the transmission chain is provided with a tensile force sampling roller which is arranged between two cloth guide rollers, the other side of the transmission chain is provided with a metallic stick and a linear proximity switch; one fixed block of the metallic stick and the transmission chain form an included angle. The silent cloth finishing machine features stable operation and quick response speed.

The invention relates to the technical field of grinding equipment, and discloses a double-layer automatic horizontal polishing device. The device comprises a bearing base plate, wherein the bearing base plate is respectively provided with a driving roller, a first driven roller, a second driven roller, a first motor for driving the driving roller, and a third driven roller; the third driven roller, the first driven roller and the second driven roller are interconnected by a transmission manner through liner strips. The device has the advantages that 1, the pressure is applied to a processing surface through a pressure applying device, so that the transmission performances of the first driven roller and the second driven roller can be improved, and the polishing efficiency can be obviously increased; 2, the direct stressing of an abrasive belt can be avoided through the pressure applying device, and thus the utilization rate of the abrasive belt is maximized; in a conclusion, the device has the advantages of being high in grinding efficiency, high in transmission performance, and long in service life of the abrasive belt.

The invention discloses a construction method for paving expressway with asphalt concrete. The method comprises steps of material mixing, paving and compacting; wherein the materials are mixed duringmixing, four kinds of asphalt concrete, including a material A, a material B, a material C and a material D, are prepared; the material A comprises asphalt, coarse aggregate, fine aggregate, chinlon 66 and filler I, the material B comprises asphalt, coarse aggregate, fine aggregate, metal fibers and filler I, the material C comprises asphalt, coarse aggregate, fine aggregate, chinlon 66 fibers, metal fibers and filler I, and the material D comprises asphalt, coarse aggregate, fine aggregate, chinlon 66 fibers and filler II; and in the step of paving, the material A, the material B, the material C and the material D are sequentially spread. When the asphalt concrete is prepared, the fibers are added, due to the flexibility of the fibers, the toughness of the asphalt concrete mixed with thefibers is enhanced, and cracks of a pavement are greatly reduced.

The invention discloses an adjusting mechanism. The adjusting mechanism comprises an adjusting piece, a first connecting piece, a second connecting piece and a mounting body provided with a guide groove, wherein the adjusting piece comprises a first connecting shaft and a second connecting shaft; an offset distance is formed between the axis of the first connecting shaft and the axis of the second connecting shaft; the first connecting shaft is pivoted with the mounting body; the first connecting piece is slidably connected with the guide groove; the first connecting piece is provided with a first connecting end connected with a plane connecting rod mechanism, and a second connecting end pivoted with the second connecting piece; and the end, far from the second connecting end, of the second connecting piece is pivoted with the second connecting shaft. The adjusting piece adjusts the position of the first connecting piece through the second connecting piece to realize position adjustment of the tail end of the plane connecting rod mechanism; the plane connecting rod mechanism directly acts on the first connecting piece to reduce collision and damage to the adjusting piece, so that the adjusting mechanism is more smooth in use; and in addition, the slippage amplitude of the adjusting piece is reduced.