53results about How to "Easy and efficient installation" patented technology

The utility model discloses a bed body frame of a seedling raising bed, which is used for placing hole trays for seedling raising and comprises a plurality of cross beam section bars, a plurality of supporting pipe columns and connecting rods, the cross beam section bars are arranged in parallel, the supporting pipe columns are also arranged below the cross beam section bars vertically, and the connecting rods are connected with the cross beam section bars. The adjacent supporting pipe columns are connected through the connecting rods. Each cross beam sectional material comprises a cross plate and a separation part, the separation part is vertically arranged on the upper surface of the cross plate, a sliding groove is formed by the separation part and the upper surface of the cross plate, and the hole tray is placed on the sliding groove of the adjacent cross beam sectional material and can slide in a reciprocating mode along the sliding groove. The hole tray is simple in structure, high in strength, high in precision, good in stability and capable of enabling the hole tray to slide smoothly in the sliding groove.

The utility model discloses a kind of damping device of unmanned plane rotating shaft, it is related to unmanned plane technical field, including: unmanned plane body and damping protection piece, unmanned plane body has rotor support, the end of rotor support is equipped with rotor drive structure, the end of rotor support is located below rotor drive structure and is equipped with through mounting hole;Damping protection piece is connected in the outside of rotor drive structure by mounting rod through mounting hole, the connecting place of mounting rod and mounting hole has elastic damping part, the outside of mounting rod is formed with damping and protection structure.The utility model sets up mounting hole by being arranged at the end of rotor support, connects damping protection piece in the outside of rotor drive structure, and sets up elastic damping part at the connecting place of mounting rod and mounting hole, can effectively buffer the vibration and impact of rotor rotating shaft, improve the flight stability and reliability of unmanned plane under complex environment.

The utility model provides a multi-band compatible compact range antenna test system which comprises a bottom plate, a feed-in antenna is fixedly mounted on the upper surface of the bottom plate, a fixing column is arranged on the upper side of the bottom plate and located on the left side of the feed-in antenna, a reflection panel is arranged on one side of the fixing column, and a connecting mechanism is arranged between the reflection panel and the fixing column. A mounting mechanism is arranged in the connecting mechanism, an electric lifting rod is fixedly mounted at the position, located on the right side of the feed-in antenna, of the upper surface of the bottom plate, a fixing frame is fixedly mounted on the upper surface of the electric lifting rod, and a clamping mechanism is arranged in the fixing frame. Through the arrangement of the connecting mechanism, the sliding rail and the moving block, the hydraulic rod is driven to cooperate with the fixed rod to adjust the angle of the reflection panel, the moving block slides on the surface of the sliding rail, the position of the reflection panel can be adjusted, and the test requirements of a multi-band antenna can be met.

This application relates to the field of cable installation technology and discloses a support structure for cable installation in power construction. The structure includes a mounting bracket with a groove on its outer surface. A matching sliding sleeve slides along the groove. A reinforcing bar connects the two mounting brackets, and a cable routing rod is detachably mounted inside the reinforcing bar. Several winding rods are staggered on both sides of the cable routing rod. This application achieves rapid fixing and flexible adjustment of the bracket through positioning kits and mounting blocks, adapting to various installation scenarios. The groove and sliding sleeve, combined with bolts, meet different wiring requirements. The reinforcing bar securely connects the two brackets, and the fastening design of the cable routing rod, positioning groove, and threaded rod ensures structural stability and ease of maintenance. The winding groove of the winding wheel, combined with the winding rod, facilitates cable winding, organization, and positioning, preventing cable tangling. The modular and detachable design of each component makes installation, adjustment, and maintenance more convenient and efficient.

The utility model relates to the technical field of cable fixing, concretely is a kind of cable line fixing device for switch board, including two groups of mounting plate and mounting rod, mounting rod rear end is connected with two groups of mounting plate, two groups of mounting plate are all provided with two groups of mounting hole, still include fixing mechanism and mounting mechanism, fixing mechanism is connected with the front end of mounting mechanism, fixing mechanism and mounting mechanism are all provided with multiple groups, and fixing mechanism and mounting mechanism are same in number, mounting mechanism is installed in mounting rod front end, and fixing mechanism is used to fix cable line;Mounting mechanism includes mounting block, clamping block, first spring and pressing rod, mounting rod front end is provided with installation groove, mounting block outer side wall is slidably connected with installation groove, recess is provided in mounting block top end, clamping block is slidably connected with recess upper and lower. The device realizes the centralized fixing, quick installation and disassembly of multiple cable lines, effectively improves the convenience, orderliness and work efficiency of cable line fixing.

The utility model relates to a kind of miniature direct-current brushless motor, including shell, and shell is equipped with accommodating cabin;With the motor rear cover and motor front cover of accommodating cabin seal connection;Stator core is equipped in accommodating cabin;With the rotor assembly matched with stator core;PCBA board is equipped in accommodating cabin;Motor rear cover is equipped with electric connection interface, electric connection interface is operatively electrically connected to PCBA board;The center of motor rear cover is equipped with the stator support shaft extending into accommodating cabin, stator core is fixedly sleeved on stator support shaft;Motor front cover is equipped with insert sealing joint part, insert sealing joint part is used to insert into gear box and form sealed connection with gear box;The output end of the motor shaft of rotor assembly extends outward through insert sealing joint part.It replaces traditional motor.The miniature direct-current brushless motor can effectively solve the problems in the prior art through innovative structural design, improve the performance, reliability and service life of motor in smart home device.

The utility model provides a kind of exempt from formwork piece prefabricated comprehensive pipe gallery structure, including along longitudinal piece prefabricated side wall, middle wall, roof and bottom plate;The side wall top is equipped with cantilevered plate integrally formed with one, and the cantilevered plate is used to rest roof and as the template of wet connecting node;The side wall and roof, the side wall and bottom plate are connected by steel bar lap joint and post-poured concrete to form wet connecting structure;The middle wall and roof are connected by high-strength bolt to form dry connecting structure;The middle wall and bottom plate are connected by mortise and tenon structure to form dry connecting structure;The longitudinal end of the side wall, roof and bottom plate is equipped with the connecting box of built-in steel wire rope ring, and the corresponding steel wire rope ring of adjacent pipe gallery section is connected by pin shaft steel bar and forms longitudinal connecting structure by pouring concrete.The utility model has good economy, and multiple segments can also be parallel advanced during construction, and efficiency is stable.

The utility model relates to an electric cooker NTC and double fuse internal and external split type connection structure, which relates to the technical field of electronic component connection, and comprises an outer shell and an inner slide block, and the outer shell and the inner slide block are provided with the same connection mechanism; the connecting mechanism comprises a connecting part A and a connecting part B which are used for connecting the outer shell and the inner sliding block. According to the internal and external split type connecting structure of the NTC and the double fuses of the electric cooker, a connecting mechanism on the outer shell and the inner sliding block comprises a limiting block, an arc-shaped groove, a semi-ring groove, a ring piece and the like, enough creepage distance is provided, the phenomenon of electric leakage can be effectively prevented even in a high-humidity or polluted environment, and the service life of the electric cooker is prolonged. The insulation performance of the whole circuit system is improved, so that the insulation performance of the whole circuit is improved, stricter UL safety specification requirements can be met, and the problems of poor insulation performance and insufficient creepage distance of some left-right split structures in the market are solved.

The utility model discloses a kind of anti-leakage sprayers, it is related to sprayer technical field, including spray bottle and water guide pipe, the top of the spray bottle is movably connected with the bottom of water guide pipe, and the top of water guide pipe is fixedly connected with water storage tank, the water outlet of water storage tank is fixedly connected with pipe, the top of water storage tank is fixedly connected with spray stand. The utility model is provided with sealing mechanism, first, insert ring and sealing ring are inserted into slot one and slot two respectively, at the same time, rubber pad enters slot two with the movement of sealing ring, then, by the thread cooperation of threaded block and threaded sleeve, rotate threaded sleeve until fixed, to realize the communication of pipe on water storage tank and connecting pipe, its sealing mechanism can improve the sealing property after pipe on water storage tank and connecting pipe are connected, effectively prevent liquid from spilling from connecting place, greatly enhance the anti-leakage effect, in addition, the connecting mode of thread cooperation makes installation become simple and efficient, to meet the practicality of the device.

The utility model discloses an assembly type fireproof door with fixing pieces, which belongs to the technical field of fireproof doors and comprises a fireproof door body and a door frame, the fireproof door body is hinged to the left edge of the door frame through hinges, the door frame is fixedly mounted on the edge of a wall through expansion bolts, and a door lock is arranged on the front side of the fireproof door body. A door closer is fixedly mounted above the fireproof door body, a door closer connecting rod is connected and mounted to the front side of the door frame, fixing piece shells are fixedly mounted on the left side and the right side of the outer side of the door frame, clamping blocks are arranged in the fixing piece shells in the front-back direction, embedded parts are packaged in the edges of the wall body through cement, and clamping grooves are formed in the embedded parts; and the clamping blocks are connected to the interiors of the clamping grooves to form reinforcing structures. The fabricated fireproof door with the fixing piece has the advantages of being convenient and efficient to install and stable and reliable in connection, is suitable for installation of fireproof doors of various buildings, and effectively guarantees fireproof safety of the buildings.

The application relates to the technical field of high-voltage cabinet installation, and discloses a high-voltage cabinet installation mechanism, which comprises a high-voltage cabinet body and a power meter installed on the surface of the high-voltage cabinet body, detachable positioning plates are arranged on the two sides of the back of the high-voltage cabinet body, the outer wall of each positioning plate is integrally provided with a sliding block, a sliding rod is installed in the sliding block, a fixed plate is fixed to the bottom end of the sliding rod, a movable sliding sleeve is arranged on the outer wall of the sliding rod, and the outer wall of the sliding sleeve is provided with a supporting rod used for supporting. The positioning block and the positioning hole are matched, the height of the sliding rod can be flexibly adjusted, and different installation environments can be adapted. The positioning plate is fixed to the high-voltage cabinet body, the ground is supported by the supporting rod and the mounting plate, a double-stable structure is formed, and the anti-inclination capacity is enhanced. The supporting rod is rotationally connected with the sliding sleeve through a connecting piece, the other end of the supporting rod can be fixed to the ground through the mounting plate or directly support the ground, a double-stable structure of 'cabinet body back fixed + bottom supported' is formed, and the anti-inclination capacity of the high-voltage cabinet is remarkably improved.

The utility model discloses a steel box girder hoist synchronous lifting equipment belongs to steel box girder hoist synchronous lifting technical field, including the bottom plate, the outside of bottom plate is provided with the lifting frame, the upper surface fixedly connected with the hanger of lifting frame, the bottom fixedly connected with four fixed columns of lifting frame, the bottom of each fixed column is all fixedly connected with the pull ring, the below of each fixed column all is provided with the receiving column, the outer surface all fixedly connected with four limit frames of each receiving column, the inner wall all pivotally connected with the clamping hook of each limit frame, the upper surface all fixedly connected with the steel wire rope of each clamping hook. This steel box girder hoist synchronous lifting equipment, through setting up the lifting frame, has simplified the hook fixed operation, need not the complicated manual fixed step, through the linkage design of fixed column, receiving column and steel wire rope, when the lifting frame is forced to rise, the steel wire rope will pull the clamping hook and rotate around the limit frame, make the clamping hook automatic buckling the place of steel box girder's hanging, and the installation process is convenient and efficient.

The utility model discloses a power line buckle device which is used for limiting a plug to a socket and comprises two fixing assemblies, two limiting pieces and a flexible connecting piece. The two fixing assemblies are used for being fixedly installed on a socket. Each fixing assembly comprises a fixed part and a movable part, and the fixed part is suitable for being fixed to the socket; the movable piece is connected to the fixed piece and provided with a limiting hole. The two limiting pieces and the two fixing assemblies are arranged in a one-to-one correspondence mode. Each limiting piece comprises a first end and a second end which are opposite, and the first end is detachably inserted into the corresponding limiting hole. The flexible connecting piece is used for being wound on the periphery of the plug; the flexible connecting piece is connected between the second ends of the two limiting pieces. Therefore, under the fixing effect of the power line buckle device, the plug can be reliably limited on the socket, the situation that the plug is accidentally loosened from the socket or even falls off is avoided, and the working reliability of electrical equipment is guaranteed.

The utility model relates to photovoltaic support technical field especially is photovoltaic module with multifunctional installation support, including installation frame and two connecting frames, all rotatory settings have support rod on the connecting frame, all settings have connecting rod between two support rods and two connecting frames, still be equipped with fixed rod between two support rods, be provided with adjusting assembly between two connecting rods, the installation frame has the pressure plate of sliding connection through the connecting mechanism, be provided with drive assembly on the connecting mechanism, the lower extreme of support rod is provided with base, be provided with lifting structure between base with support rod, through drive assembly and connecting mechanism cooperation control the position of pressure plate, make pressure plate sustain downward force, thereby guarantee the pressure plate to photovoltaic module carry out pressure tightly fixed, when the specification of photovoltaic module changes simultaneously, the position of pressure plate pressure tightly also changes along with it, adapt to different specifications photovoltaic module.

This invention relates to the field of tension clamp technology, and more specifically, to an anti-derailment wedge-shaped insulated tension clamp. Two connecting plates are respectively hinged to one end of a first wedge-shaped outer shell and a second wedge-shaped outer shell, and the two connecting plates are hinged together by bolts. Two mounting mechanisms are provided, each located inside the first and second wedge-shaped outer shells. A self-locking mechanism includes a self-locking component and a self-locking plate. The self-locking component is fixedly mounted on the first wedge-shaped outer shell, and the self-locking plate is fixedly mounted on the second wedge-shaped outer shell. Two sets of self-locking components and self-locking plates are provided, respectively located on both sides of the first and second wedge-shaped outer shells. A limiting mechanism is movably mounted within a groove formed by the combination of the first and second wedge-shaped outer shells. This invention, through the coordinated operation of these three mechanisms, achieves rapid installation, convenient disassembly and assembly, and reliable fixation of the insulated clamp, significantly improving construction efficiency and operational convenience.

The utility model relates to capacitor technical field, and disclose a capacitor that can adjust the length of pin, aims at solving the problem that the length of pin of existing capacitor is fixed and the poor commonality. It includes capacitor, and the capacitor bottom end is connected with base, and the base is equipped with pin adjusting mechanism and spring contact piece mounting mechanism, and the pin adjusting mechanism contains inner and outer cylinder, and the inner cylinder is installed in the base bottom, and the surface has outer thread, and the inner thread is in the outer cylinder, and both are connected through thread, and the rotation outer cylinder can adjust its along the inner cylinder movement, and cooperate helical beryllium copper band spring contact piece realizes pin length adjustment, and the outer thread length is not less than the outer cylinder and is equipped with limiting convex at both ends and prevents falling, and the spring contact piece mounting mechanism is installed through the first magnet in the mounting seat and the second magnet adsorption installation in the base mounting hole, and the first contact of mounting seat and the second contact of mounting hole are electrically connected, guarantee current transmission stability, improve the adaptability and reliability of capacitor.

The utility model relates to the technical field of naked eye display, in particular to a dynamic naked eye panoramic all-digital immersive display device with a transverse cylindrical lower section, which comprises a transverse cylindrical frame, a light-emitting diode (LED) display screen module, a rectangular galvanized steel pipe and a fixing piece. The curvature radius of the rectangular galvanized steel pipe is matched with the diameter of the transverse cylindrical frame, and the rectangular galvanized steel pipe is distributed in the axial direction of the cylindrical frame and used for supporting the LED display screen module. U-shaped clamps arranged at the corners of the display screen are adopted as the fixing pieces and matched with strip-shaped clamping grooves in the inner sides of the galvanized steel pipes, connection stability is enhanced through built-in magnet pieces, rapid mounting and dismounting are facilitated, the equipment further comprises fixing frames arranged at the two ends of the transverse cylindrical frame in a sleeving mode, the overall structural strength is further improved, and the equipment is compact in structure, high in visual immersion sense and high in practicability. The method is suitable for scenes such as virtual reality, exhibition display and game experience, and high-quality naked eye panoramic dynamic image presentation is realized.

The utility model relates to a mute cabin technical field, concretely relates to a combined mute cabin splicing structure, including base plate, connecting assembly and perspective window, the base plate is equipped with a plurality of sound insulation cavities in its thickness direction, the base plate is connected through connecting assembly and is mutually connected and encloses the rectangular outer frame of constitution, the connecting assembly includes the edge strip of package of base plate side and the connecting strip of base plate corner, the both ends end face of connecting strip is equipped with the insertion slot of T type structure, the sound insulation cavity of base plate is fixed through the insertion of insertion slot and three card lock and connecting column, the one side of edge strip and connecting strip towards the inside of outer frame is provided with the auxiliary positioning slot, the inside decorative board is inlayed in the auxiliary positioning slot, the one side of edge strip towards the outside of outer frame is provided with the mounting groove, the edge of perspective window is respectively inserted in the mounting groove of adjacent edge strip, the one side of mounting groove is rotatably connected with the perspective door through the connecting hinge.

The utility model discloses a vacuum chamber positioning calibration structure for a rocket electromagnetic ejection track, which comprises a vacuum chamber and a fixed seat, the vacuum chamber comprises a plurality of vacuum pipelines which are sequentially spliced in a sealing way along the axial direction of the vacuum chamber, and any two adjacent vacuum pipelines are connected through a flexible pipe; the two ends, in the axial direction, of the flexible pipe are fixedly connected with the corresponding ends of the adjacent vacuum pipelines in a sealed mode respectively, and an axial supporting part and a radial supporting part are arranged on the outer wall face of each vacuum pipeline at intervals. The fixing base comprises a plurality of fixing frames which are sequentially and fixedly spliced in the height direction of the fixing base, and each fixing frame is fixedly arranged on the periphery of the corresponding vacuum pipeline in a sleeving mode and provided with an axial installation part and a radial installation part. An axial adjusting piece is arranged on each axial mounting part, and a radial adjusting piece is arranged on each radial mounting part, so that the fixing position of the vacuum pipeline relative to the fixing frame is adjusted in the axial direction and the radial direction. The device has the advantages of being simple in structure, convenient to install and adjust and good in sealing performance.

The utility model discloses a kind of calling box fixing structure for reforming ladder, it is related to the field of elevator reform, to solve the problem that old calling box bottom box is left in wall hole in old ladder reform, leading to new calling box difficult to fix.It includes the bottom plate of thin wall-mounted calling box, bottom plate back surface is equipped with tensioner, tensioner contains stud, left and right pressing block, support and adjusting piece;The thread rotation direction of stud two ends is opposite, connects corresponding pressing block, drives pressing block synchronous reverse movement when rotating, so that pressing block top column is tightly pressed or separated from old bottom box inner wall.The structure does not need to block old bottom box, saves material and working hours;Through calling box front face wire hole operation, installation is convenient;Top column and support design enhance fixed firmness, adapt to a variety of old bottom box, easy mass production, effectively improve reform efficiency and stability.

The utility model relates to the technical field of assembly type ceiling surface, especially a kind of assembly type ceiling surface of convenient construction. Including multiple main keels, vice keel and panel, multiple main keels are all installed with the suspender for being connected with the building top structure, multiple main keels are all provided with the first clamping assembly for being clamped with multiple vice keels, multiple vice keels are all provided with the second clamping assembly for being clamped with multiple panels. The utility model is through the setting of first clamping assembly and second clamping assembly, main keel and vice keel are clamped by first clamping assembly, vice keel and panel are clamped by second clamping assembly, without complex splicing operation, construction personnel only need to complete installation by corresponding clamping, reduce the requirement to the technical level of construction personnel, simplify construction process, make ceiling surface installation more convenient and efficient, significantly improve construction efficiency.

The utility model discloses a kind of LED lamps with rotating buckle type lamp holder structure and angle can 360 ° adjustment, it is related to LED lamps technical field.The lamp includes power supply support and lamp holder assembly, power supply support is connected with external mounting seat by 360 ° rotatable connecting piece, and its opening cavity is equipped with circular boss with symmetrical gap;Lamp holder assembly contains light source part and lamp head part, and lamp head part includes lamp shell assembly and clamping mechanism, and lamp shell assembly is equipped with limit baffle, and clamping mechanism is composed of clamping plate, push main body and compression spring.When installing, clamping plate is inserted after alignment gap and rotates dislocation, under the spring elasticity, clamping plate and limit baffle clamping circular boss realize fixed;Dismounting reverse operation can be, without tool.The utility model is installed convenient and efficient, can 360 ° all-around adjustment angle, connection is stable and reliable and structure is simple and compact, can satisfy diversified lighting scene demand.

The utility model belongs to the technical field of pipe burying structures, and discloses a municipal pipe network slotting pipe burying structure which comprises a pre-buried connecting position, a mounting mechanism is fixedly arranged on one side of the pre-buried connecting position, a mounting pipe is fixedly arranged on the inner side of the mounting mechanism, a connecting pipe is arranged at one end of the mounting pipe, and a connecting pipe is arranged at the other end of the mounting pipe. One end of the mounting pipe and one end of the connecting pipe are jointly provided with a connecting mechanism, the connecting mechanism comprises a connecting plate, the two sides of the connecting plate are attached to one end of the mounting pipe and one end of the connecting pipe respectively, the two sides of the connecting plate are jointly and fixedly provided with a communicating pipe, and the two sides of the connecting plate are both fixedly provided with a plurality of annularly-distributed clamping plates; stable connection and effective sealing between the mounting pipe and the connecting pipe are achieved through the connecting mechanism, the stability and the bearing capacity of the whole mounting structure are enhanced through the mounting mechanism, the mounting process is more convenient and efficient, and the construction efficiency and quality are improved.

This utility model relates to the field of household appliance technology and discloses a stirring device and agitator. The stirring device includes a housing assembly, a stirring component, and a protective cover. The housing assembly has a stirring chamber inside and a through hole. The stirring component is disposed in the stirring chamber, and the driving end of the stirring component is used to connect to an external driving component through the through hole. The protective cover is located in the stirring chamber and is disposed on the stirring component. Its projection on the housing assembly covers the through hole. By setting the protective cover, when the stirring component is stirring materials in the stirring chamber, the splashing materials are blocked by the protective cover and cannot splash directly into the through hole, preventing the materials from accumulating and clumping in the through hole. It also prevents materials from splashing from the through hole to the outside of the housing assembly, keeping the outside of the housing assembly clean. The driving component outside the housing assembly is also less likely to be contaminated by materials. This not only facilitates daily cleaning and maintenance but also effectively reduces the failure rate of the driving component caused by material contamination.

The utility model relates to the field of centrifugal pumps, and discloses a quick exhaust device of a self-suction centrifugal pump, which comprises a mounting plate, a centrifugal pump main body is mounted at the top of the mounting plate, an exhaust pipe is fixedly connected to the outer side of the centrifugal pump main body, and a leakage-proof component is arranged on the outer side of the exhaust pipe. The end, away from the centrifugal pump body, of the exhaust pipe is in threaded connection with a nut, a connecting pipe is fixedly connected to the outer side of the exhaust pipe, and a collecting assembly is arranged at the end, away from the exhaust pipe, of the connecting pipe. According to the utility model, the exhaust pipe, the connecting pipe, the collecting box, the filter screen, the collecting drawer, the pull rod, the baffle plate, the thin shell, the spring and other structures are matched with one another, so that discharged liquid can be collected, the liquid is prevented from being discharged at will, the environmental protection requirement is met, the cleanliness and safety of the working environment are guaranteed, and the filter screen is easy and efficient to clean and install; and the maintenance cost and the maintenance time are greatly reduced.

The utility model relates to the field of industrial chains, and discloses a high-strength tensile industrial chain which comprises outer chain plates, inner chain plates, pin shafts, sleeves and rollers, the rollers are inserted between round holes in the two sides of the two inner chain plates, the sleeves are sleeved on the outer cylindrical surfaces of the rollers, the sleeves are arranged between the two inner chain plates, the pin shafts are inserted in the rollers, and the sleeves are sleeved on the pin shafts. Outer chain plates are inserted into the two ends of the pin shafts on the outer sides of the inner chain plates, round holes of the outer chain plates are rotationally connected with the pin shafts, round holes in the other sides of the outer chain plates are rotationally connected with the pin shafts of the other set of inner chain plates, one ends of the pin shafts are fixedly connected with protruding blocks, and the faces, connected with the protruding blocks, of the pin shafts are attached to the outer chain plates. A self-locking structure is arranged at the end, deviating from the protruding block, of the pin shaft, the chain is integrated into the buffering and self-locking structure, impact and friction between the chain and the chain wheel are effectively relieved, the abrasion degree and energy consumption during equipment operation are greatly reduced, and meanwhile the equipment downtime is greatly shortened through the convenient maintenance design.

The utility model discloses an identification PCCP (prestressed concrete cylinder pipe), which relates to the technical field of concrete prefabricated parts and comprises a PCCP frame and an integrally formed concrete chip arranged on the PCCP frame. The PCCP frame comprises a peripheral steel cylinder, a pipe core outer wall concrete layer wrapping the peripheral steel cylinder, a prestressed steel wire wound around the periphery of the pipe core outer wall concrete layer, a mortar protection layer wrapping the prestressed steel wire and a pipe core inner wall concrete layer arranged on the inner side of the peripheral steel cylinder. The integrally-formed concrete chip is arranged on a peripheral steel cylinder at the socket end of the PCCP pipe frame and / or a concrete layer on the inner wall of the pipe core; the integrally-formed concrete chip is arranged in the identification PCCP pipe, so that identification and traceability management are facilitated. The PCCP information recording device is simple in principle and obvious in effect, can be effectively suitable for PCCPs with different information recording requirements, marks and traces the PCCPs at the same time, and remarkably improves the quality management level of concrete products or structures.

This disclosure relates to the field of building profile technology, providing a nail-free leveling keel assembly and its installation method. The nail-free leveling keel assembly includes: a fixing member having a first groove, with at least one fixing strip connected to the sidewall of the first groove and the sidewall of the second groove respectively; a keel having a second groove, with multiple adjustment holes on the bottom wall of the groove for the fixing strips to pass through. The multiple adjustment holes are arranged in two rows, with the two rows of adjustment holes oppositely arranged on the bottom wall of the second groove near the sidewall of the third and fourth grooves. Each row of adjustment holes includes at least one adjustment hole and is arranged sequentially along the direction of the second groove. Limiting edges are respectively provided on the outer sidewall of the second groove, and the limiting edges are parallel to the straight extension direction of the second groove. When the keel is connected to the fixing member, the fixing strip passes through the adjustment holes and continuously bends to the outer sidewall of the second groove, forming a limiting edge tightly fastened to the limiting edges. This disclosure realizes nail-free installation of the keel, making installation more convenient.