52results about How to "Avoid cracking damage" patented technology

The invention relates to the technical field, and particularly discloses a nano-modified epoxy building thermal insulation material and a preparation method thereof. The nano modified epoxy building thermal insulation material is prepared from the following raw materials in parts by mass: 80 to 120 parts of Portland cement, 20 to 40 parts of slag powder, 5 to 10 parts of hollow mesoporous silicon dioxide, 0.1 to 1 part of pyrrole, 0.1 to 0.2 part of ammonium persulfate, 5 to 10 parts of nano silicon dioxide, 10 to 15 parts of bisphenol S epoxy resin, 1 to 5 parts of acrylic acid, 1 to 2 parts of polylysine, 0.01 to 0.1 part of catalyst and 1 to 2 parts of curing agent. The concrete is prepared from the following raw materials in parts by weight: 20-30 parts of epoxy resin, 4-8 parts of loaded aerogel, 0.1-1 part of polycarboxylate superplasticizer, 1-4 parts of composite fiber and 0.2-1.25 parts of hydrogen peroxide. The fireproof building material has excellent toughness, can better resist cracking and absorb energy, effectively avoids cracking and damage under the action of thermal stress, and ensures that the building material has a fireproof effect.

The utility model relates to the technical field of building heat preservation and drainage, and discloses a drainage and exhaust structure of a roof heat preservation system, the drainage and exhaust structure comprises an exhaust pipeline, a drainage groove seat and an exhaust auxiliary assembly, the exhaust pipeline is installed in a joint of two adjacent heat preservation layers, and the drainage groove seat is installed on the side of the heat preservation layers in an embedded mode. The exhaust pipeline which is through longitudinally and transversely is arranged in the heat preservation layer of the roof, the air guide through hole is formed in the upper portion of the exhaust pipeline, the end of the pipeline extends out of the roof by 90 degrees, so that water vapor in the heat preservation layer can be discharged in time, the drainage groove base is pre-buried in the connecting side of the heat preservation layer, and accumulated water in the heat preservation layer is discharged through the drainage groove base. Cracking and damage of the roof caused by frost heaving of water and pressure of gas can be effectively prevented, the service life of the roof is greatly prolonged, an active exhaust structure is formed by the semicircular fan cover and the exhaust fan blades, the semicircular fan cover is driven by wind power of the roof to drive the exhaust fan blades to rotate, and exhaust of water vapor can be accelerated through the air draft effect.

The invention discloses a high-rise concrete module which comprises a bottom plate, a top plate and a pair of side plates, the bottom plate, the top plate and the pair of side plates form a cuboid structure with two open ends, one side plate is a wall shell, and the two ends of the wall shell in the length direction form edge constraint component parts. A staggered connecting structure is arranged at the bottom of the edge restraining component part, a positioning structure corresponding to the staggered connecting structure of an adjacent module is arranged at the top of the edge restraining component part, a plurality of vertical key grooves are formed in the outer side of the wall shell at intervals in the length direction, and connecting pieces are arranged in the vertical key grooves. The invention further discloses a construction method of the high-rise concrete module connecting structure. According to the invention, the connection number of the vertical steel bars is reduced, traditional sleeve grouting connection and corrugated pipe slurry anchor lap joint connection are avoided, the field installation efficiency can be obviously improved, and the engineering quality risk is reduced.

The invention discloses a protection type anti-short-circuit relay which comprises a base, a side plate is arranged on one side of the top of the base, a shell is connected between the other side of the top of the base and the side plate, an electromagnetic coil is installed at the top of the base, a support is installed at the position, between the electromagnetic coil and the shell, of the top of the base, and a transverse plate is rotationally connected to the support. And the transverse plate is connected with an armature. According to the protection type anti-short-circuit relay, when the electromagnetic coil is electrified and the armature is attracted to drive the movable contact to be close to the second static contact, the second connecting piece presses the sliding rod to move downwards in the barrel through the shifting frame, so that air in the barrel is discharged downwards through the narrower first through opening in the opening plate, and the diameter of the first through opening is limited; therefore, the exhaust effect is limited, the buffering effect is achieved, the situation that the movable contact and the second static contact are rapidly collided when making contact, and cracks and damage of the contacts are caused for a long time is avoided, and the service life is prolonged.

The utility model discloses a wiper system connecting piece, including three metal sheets that are integrally connected in proper order and are straight plate, three the metal sheet includes two metal end sheets of length direction parallel and the metal intermediate sheet of arc transition connection between two the metal end sheet, the one end of metal end sheet is provided with the assembly through -hole of extending along the thickness direction of itself away from the metal intermediate sheet, still integrally connected with reinforcing member between two the metal end sheet and two the metal end sheet of the both ends of metal intermediate sheet. The wiper system connecting piece connects metal intermediate sheet and metal end sheet through reinforcing member, has increased the overall structural strength of connecting piece, has improved the stress bearing capacity at the bending, avoided the damage cracking at the bending after long -term use, thus improved the durability of connecting piece, thereby prolonged the service life.

The utility model provides a freezing pipe fixing device for freezing method construction. The freezing pipe fixing device for freezing method construction comprises an L-shaped supporting plate, a fixing rod is fixedly installed at the top of the L-shaped supporting plate, a supporting plate is fixedly installed at the top of the fixing rod, a lower clamping plate is fixedly installed at the top of the L-shaped supporting plate, and a buffering mechanism is fixedly installed in the lower clamping plate. A screw rod is rotatably mounted in the fixing rod, one end of the screw rod extends out of the supporting plate and is fixedly provided with a rotating button cover, second connecting rods are slidably mounted on the outer side of the screw rod, and upper clamping plates are fixedly mounted on the sides, away from each other, of the second connecting rods; a buffer pad is fixedly installed on the side, close to the lower clamping plate, of the upper clamping plate. The freezing pipe fixing device for freezing method construction has the advantages of being convenient to use, capable of fixing pipelines of different sizes and capable of reducing vibration of the freezing pipe.

The invention discloses a novel hinge expansion joint for high-temperature flue of flue gas turbine, comprising: end pipe I, end pipe II, bellows, load-bearing frame I, load-bearing frame II, two sets of hinge mechanisms and eight sets of supporting components; end pipe I, bellows and end pipe II are connected in sequence; load-bearing frame I is located at the side of end pipe I and supports end pipe I through four sets of supporting components; load-bearing frame II is located at the side of end pipe II and supports end pipe II through another four sets of supporting components; two sets of hinge mechanisms are installed between load-bearing frame I and load-bearing frame II. The invention ensures the long-term operation of the expansion joint under high-temperature working conditions and improves the service life of the product.

This application relates to the field of BC battery back cleaning and discloses an integrated machine for precise BSG removal wet cleaning of the back of BC batteries. In this application, a flushing pump is fixedly connected to the side surface of the working frame, an adjusting shaft is set on the outer surface of the clamping frame, the adjusting shaft is movably connected to the inner groove of the working frame, a clamping block is movably connected to the inner surface of the clamping frame, a rocker arm is movably connected to the inner surface of the corresponding clamping block, and a rack is fixedly connected to the outer surface of the clamping frame. An adjusting plate is set on the outer surface of the other end of the rack, which can automatically complete adaptive clamping after the BC battery is inserted, without additional manual intervention, thus improving clamping efficiency. The cooperative design of the rack and adjusting plate allows for flexible adjustment of the clamping span according to the size and specifications of the BC battery, adapting to the production needs of BC batteries of different sizes and enhancing the versatility of the equipment. The integrated layout of the upper support shell, tilt adjustment mechanism, precision cleaning mechanism, and flushing pump reduces material transfer losses between processes and lowers the risk of scratches on the surface of the BC battery.

The utility model belongs to bridge construction, and discloses a bridge expansion joint filling structure and a bridge expansion joint structure thereof.The bridge expansion joint filling structure comprises a foam strip, the foam strip comprises a foam strip upper portion and a foam strip lower portion, and the longitudinal section of the foam strip lower portion is of a semicircular structure protruding downwards; the maximum width of the foam strip lower part is larger than that of the foam strip upper part, so that step structures are respectively formed between the foam strip lower part and the left side of the foam strip upper part and between the foam strip lower part and the right side of the foam strip upper part. The structure is simple and convenient to construct, traffic can be opened by fixing the foam strips, the road occupation time is short, the difficult problems of broken stone seam clamping, impurity deposition and the like are completely eradicated, and the structure has remarkable advantages in the aspects of construction cost, maintenance cost, service life and the like.

The utility model discloses an ultra-precise elastic inner hole mirror surface tumbling cutter which comprises a cutter handle and a cutter body arranged at the end of the cutter handle, the cutter body and the cutter handle are of an integrated structure, and a diamond hob barehead fixing shaft sleeve fixing hole is formed in the front end of the cutter body. A diamond hob light head fixing shaft sleeve is arranged in the diamond hob light head fixing shaft sleeve fixing hole, a diamond hob light head is installed in the diamond hob light head fixing shaft sleeve, and a belleville spring connected with the diamond hob light head fixing shaft sleeve is arranged in the diamond hob light head fixing shaft sleeve fixing hole. The belleville spring is arranged at the rear end of the diamond hobbing cutter head, so that rigid contact between the diamond hobbing cutter head and a part due to micro size change is effectively buffered, the diamond is prevented from being cracked and damaged, the service life of the cutter head is prolonged, and the use cost of the cutter head is reduced.

This utility model relates to the field of civil engineering technology, specifically to a large-diameter prestressed pipe pile with bending resistance, including a prestressed pipe pile mechanism. The prestressed pipe pile mechanism includes a pipe pile body one and a pipe pile body two. The bottom end of the pipe pile body one is provided with the pipe pile body two. During use, the pipe pile body one, the pipe pile body two, and the clamping mechanism are disassembled for transportation. After arriving at the site, the pipe pile body one and the pipe pile body two are connected together by the clamping mechanism and then put into use. During use, a connecting buffer plate is clamped at the connection between the pipe pile body one and the pipe pile body two.

The utility model provides an internal thread connector which comprises a connecting pipe and caps, and the caps are detachably fixed to the two ends of the connecting pipe in an inserted connection mode. The cap comprises a cap body and an inner pipe, the inner pipe comprises a first end and a second end, the first end of the inner pipe is concentrically fixed to the inner side face of the cap body, a round hole is formed in the cap body, the inner diameter of the round hole is the same as that of the inner pipe, and a sealing ring is further arranged in the cap body and arranged on the outer side of the inner pipe in a sleeving mode. The end of the connecting pipe abuts against the sealing ring, and threads are arranged on the inner wall of the inner pipe. Cracking caused by expansion caused by heat and contraction caused by cold during use is avoided, the detachable structure is beneficial to replacement when part of components of the internal thread connector are damaged, waste of resources is avoided, disassembly and replacement are fast, time waste is reduced, installation and operation are easy and convenient, and limitation of the space size of an installation area and the weight and size of the components is avoided.

The embodiment of the utility model relates to the technical field of electronics, in particular to a circuit board and electronic equipment. The embodiment of the utility model aims to solve the problem that the flexible circuit board is easily damaged by pulling force of two printed circuit boards. According to the circuit board provided by the embodiment, the second printed circuit board and the first printed circuit board are arranged at an interval, one end of the flexible circuit board is connected with the first printed circuit board, the other end of the flexible circuit board is connected with the second printed circuit board, and the rigid limiting piece is connected with the first printed circuit board and the second printed circuit board. The rigid limiting piece is used for preventing the second printed circuit board from moving relative to the first printed circuit board so as to prevent the first printed circuit board and the second printed circuit board from pulling the flexible circuit board, and then the flexible circuit board is prevented from being damaged by pulling force.

The utility model discloses a kind of UHPC cable manhole covers, including the cover plate body made of UHPC, multiple groups of reinforcement cage are pre-buried along length direction in the cover plate body inside, and reinforcement cage includes longitudinal main reinforcement and transverse distribution reinforcement;Anti-skid texture is equipped on the upper surface of cover plate body, and sealing groove is equipped on the side surface of four around, and rubber sealing strip is adaptively installed in sealing groove;Hoisting connecting part is equipped on the side surface of both ends of the short side of cover plate body;Reserved mark area is on the upper surface of cover plate body, multiple groups of reinforcing ribs are arranged along width direction in the cover plate body inside, and drainage groove is set up on the upper surface, the utility model uses UHPC material, compared with traditional concrete, high in strength, good in durability, under the premise of guaranteeing cover plate strength, cover plate thickness can be appropriately thinned, effectively reduce dead weight, after testing, the utility model cover plate body compared with same size ordinary concrete cover plate dead weight lightens 30%-40%, convenient to carry and install, reduce construction difficulty and labor intensity;Meanwhile, the high durability of UHPC makes cover plate long-term use under harsh environment, reduces maintenance replacement frequency, reduces whole life cycle cost.

The invention discloses an air cooler mounting structure, and relates to the technical field of air coolers. The shell is arranged on the rack, a plurality of heat exchange tubes and a box body are arranged in the shell, and two vent grooves are formed in the box body; the two movable plates are arranged in the two vent grooves in a sliding mode respectively, and a plurality of connecting pipes are arranged on the movable plates; the two ends of the movable plate are provided with a first sealing assembly and a second sealing assembly which are used for sealing a gap between the movable plate and the box body. When the heat exchange pipeline in the shell expands with heat and contracts with cold, the connecting pipe is driven to move axially, then the movable plate is pushed to move towards the interior or the exterior of the vent groove, the heat exchange pipeline is prevented from being cracked and damaged, and the service life is prolonged; and in the moving process of the movable plate, the first sealing assembly and the second sealing assembly are always in a sealed state, so that air leakage of the box body is effectively prevented.

The utility model discloses a dam waterproof heat preservation structure in the dam waterproof heat preservation field, which comprises a dam body, a heat preservation assembly and a waterproof assembly, the heat preservation assembly is fixedly connected to the front side and the rear side of the dam body, and the waterproof assembly is fixedly connected to the outer side of the heat preservation assembly. According to the dam waterproof heat preservation structure, water in the heat preservation water tank is heated through a heating wire, then a pump machine is started, the water in the water tank is conveyed into a water inlet and outlet pipe through a water inlet pipe and enters a heat preservation pipe, and therefore the heat preservation pipe heats the dam body; and heat loss of the heat preservation pipe is avoided through the arrangement of a heat preservation cover and heat preservation cotton, so that the heat preservation effect of the dam is better, cracking and damage of the dam are avoided, the safety and reliability of use of the dam are improved, and the service life of the dam is prolonged.

A vibrating screen comprises a bottom frame and a screening machine shell, the screening machine shell is obliquely arranged on the bottom frame, a plurality of stand columns are arranged on the two sides of the bottom frame, springs are arranged at the tops of the stand columns located at the two ends of the bottom frame, a connecting base is arranged on the side portion of the screening machine shell, and the bottom face of the connecting base is connected with the tops of the springs. A vibrating mechanism used for driving the screening machine shell to vibrate is arranged on the middle stand column, a screen is detachably arranged in the screening machine shell, screen supporting structures used for supporting the screen are connected between the two inner walls of the screening machine shell at intervals, and a dust blocking plate is hinged to the top of the screening machine shell. The length of the dust blocking plate is smaller than that of the screening machine shell so that a feeding port can be formed in the upper portion of the screening machine shell, blocking rods and a baffle are arranged between the two inner walls of the screening machine shell, the blocking rods are arranged at intervals and located at the feeding port, and the baffle is located at the position close to the last blocking rod.

The invention relates to the technical field of underground excavation construction, in particular to an underground excavation obstacle removing scaffold tightly attached to an underground diaphragm wall of an existing station and a construction method.The underground excavation obstacle removing scaffold comprises a frame body, two walkway plates are installed on the upper portion of the frame body, a dense mesh is arranged on the front side of the frame body, and two installation grooves are formed in the left side and the right side of each walkway plate; a mounting block is inserted into the inner wall of the mounting groove, and sliding blocks are mounted on the front side and the rear side of the mounting block; the method has the beneficial effects that the MJS horizontal reinforcing technology and the five-step three-step method are adopted for tunnel portal breaking, rapid, safe and low-cost tunnel portal breaking work is achieved, the construction progress is accelerated, the construction risk is reduced, meanwhile, in the scaffold erecting process, through cooperation of a hook, a lower hook piece and a rubber pad, the construction efficiency is improved, and the construction cost is reduced. Therefore, the possibility that the walkway plate slides on the frame body is effectively reduced, the installation stability of the walkway plate is enhanced, and the using effect of the scaffold can be improved.

The utility model discloses a stay cord connecting device and vehicle, the device comprises a first stay cord, a second stay cord and a clamping connection structure, the clamping connection structure comprises a sleeve and a clamping connection portion matched with the sleeve in an inserting connection mode, the clamping connection portion and the sleeve are relatively locked or loosened, one end of the first stay cord is connected with the clamping connection structure, and the other end of the first stay cord is connected with the second stay cord. One end of the first pull rope is connected with the clamping structure, the other end of the first pull rope is provided with a first fixing part for connecting and fixing, one end of the second pull rope is connected with the clamping structure, and the other end of the second pull rope is provided with a second fixing part for connecting and fixing. The pull rope connecting device is installed at a designated position, assembling is easy and convenient, the pull rope connecting device automatically loosens after exceeding the set load, and load bearing damage is avoided.

The utility model discloses a charger data line structure, which comprises a first data connector, a data line body, a second data connector and a data line storage box, and is characterized in that two ends of the data line body are integrally connected with the first data connector and the second data connector respectively; one end of the first data connector and one end of the second data connector are respectively provided with an electric connection plug, and data line clamping grooves distributed in a winding mode are formed in the data line storage box. A data line clamping interface is arranged on one side of the opening of the data line storage box, a data line penetrating hole position is arranged on one side of the data line storage box, the middle portion of a data line body can be stored in the data line storage box, a good protection effect is achieved, the uncovering type design mode is adopted, the data line body is convenient to take and use, and the data line storage box is very convenient to use.

The utility model discloses a universal tin planting degumming platform, which comprises a chip, the tin planting degumming platform comprises a platform body, a degumming assembly and a tin planting assembly, the degumming assembly comprises an adjusting suite, a translation clamping block and a fixed clamping block, the adjusting suite is spirally connected with the translation clamping block, the fixed clamping block is fixedly arranged below the translation clamping block, and the chip is arranged on the platform body. The translation clamping block translates up and down through the adjusting suite and is matched with the fixed clamping block to clamp a chip, and a first chip groove for placing the chip is formed between the translation clamping block and the fixed clamping block; according to the glue removing assembly, the chip is clamped and fixed in a mode of adjusting the clamping force, a traditional mode of fixing the chip by adopting a spring springback type structure is replaced, and the situation that the chip is sprung away or is clamped, cracked and damaged due to the fact that the clamping force is too large is avoided; besides, the surface of the platform body is also provided with a stepped groove, and a tin planting steel mesh can be placed in the stepped groove, so that stable alignment of chips with different specifications is realized, and the tin planting step is ensured to be carried out smoothly.

This utility model relates to the field of connectors, specifically a low-voltage cable connector, including a connector body, a cable fixedly mounted on the connector body, the connector body and the cable being electrically connected, a limiting component on the connector body, a protective component on the periphery of the connector body, and an adjusting component on the protective component. The limiting component includes several trapezoidal slots formed on the connector body, located on the top, bottom, left, and right sides of the connector body, respectively. A trapezoidal block is disposed within each trapezoidal slot, and a clamping block is fixedly connected to the end of the trapezoidal block away from the connector body, the clamping block penetrating the trapezoidal slot and extending to the outside. Compared to the prior art, this patent, by setting up protective components and protective covers, can protect the outer shell of the connector body and the pins inside the connector body, thereby preventing damage to the connector body and its pins from impacts.

The utility model discloses anti-cracking leather, relates to the technical field of leather, and aims to solve the problem that the existing leather still cannot meet the tensile requirements of part of users in the process of being made into products and used, the technical scheme is that the anti-cracking leather comprises a leather layer, an outer surface layer is coated on the leather layer, and the outer surface layer is coated on the outer surface layer. A tensile net is connected to the other side of the leather layer in a bonding mode, a deformation layer is arranged on the side, away from the leather layer, of the tensile net in a covering mode, and a fabric layer is arranged on the side, away from the tensile net, of the deformation layer in a covering mode. According to the anti-cracking leather disclosed by the utility model, when being pulled, the anti-cracking leather is borne by the tensile net to external tensile force, so that the tensile effect of the whole structure of the leather is formed, and when the leather is used, the situation that the leather is cracked and damaged due to the tensile force is avoided.

The utility model provides an anti-drop ceramic money pot, which relates to the field of ceramic money pots, and comprises a pot body, a spacing ring and a base, the bottom of the pot body is connected with a balancing weight, the outer side of the pot body is wrapped with a protective sleeve, the inner side of the protective sleeve is provided with a ceramic layer, the inner wall of the ceramic layer is bonded with a metal layer, the inner side of the metal layer is provided with an internal storage cavity, and the inner side of the internal storage cavity is provided with an opening. The limiting ring is connected to the upper side of the base, the inner wall of the limiting ring is connected with the spring, the inner side end of the spring is connected with the rubber ring, meanwhile, the rubber ring adheres to the outer wall of the balancing weight, the universal ball seat is installed in the base, and the lower end of the balancing weight is connected to the upper end of the universal ball seat. The anti-falling ceramic money pot solves the problems that an existing anti-falling ceramic money pot is poor in anti-falling effect, and the surface of the pot body cannot be protected.

This invention provides a photothermal conversion phase change insulation flexible composite pipe and its preparation method, comprising a base pipe layer and, from the inside out, an adhesive transition layer, a phase change insulation layer, a photothermal conversion layer, and a protective layer. The base pipe layer consists of an inner lining layer, a double-layer fiber reinforcement layer, and an outer protective layer. The adhesive transition layer is a mixture of ethylene-vinyl acetate copolymer and silane coupling agent. The phase change insulation layer uses modified melamine foam as a skeleton, loaded with erythritol phase change material and nano-silica. The photothermal conversion layer is a composite layer of polydopamine and waterborne polyurethane. The protective layer is a polyvinyl fluoride layer. The preparation method includes extrusion winding of the base pipe layer, thermal spraying of the adhesive transition layer, vacuum impregnation and hot pressing of the phase change insulation layer, spraying and drying of the photothermal conversion layer, and extrusion cooling and shaping of the protective layer. This invention achieves a combination of photothermal conversion energy storage and flexible insulation, with strong layer bonding, good flexibility, high mechanical strength, low heat loss, energy saving and environmental protection, and is suitable for various scenarios such as centralized heating and industrial steam transportation.

The present invention provides a central dividing guardrail suitable for a double-span top-pushing bridge, comprising a steel panel, a steel transverse diaphragm, a seam-covering steel plate and a longitudinal partition plate. The seam-covering steel plate covers the longitudinal seam of the bridge, the longitudinal partition plate is vertically arranged on the seam-covering steel plate and arranged along the length of the bridge, there are two steel panels, arranged along the length of the bridge, and the two steel panels are symmetrically fixed on the bridge steel beams on both sides of the longitudinal seam of the bridge, the steel transverse diaphragm is arranged between the steel panel and the longitudinal partition plate along the transverse direction of the bridge, and concrete is poured between the steel panel and the longitudinal partition plate. The invention adopts a steel plate-concrete combined structure to give full play to the advantages of the two materials, and adopts the concept of permanent and temporary combination. In the top-pushing stage, the steel panel and the steel transverse diaphragm are used as temporary guardrails to ensure transportation safety during the construction stage, and the temporary steel structure guardrail is filled with concrete to become a permanent integral guardrail. At the same time, the design of the longitudinal partition plate avoids the problem of cracking and damage caused by different deformations between the two spans of the bridge.

The utility model relates to an integrated 3D printing bar counter chair, which comprises an integrated seat main body, the seat main body comprises a seat support part, a rear support part, a bottom foot part and a buffer part which are annularly distributed, and the buffer part comprises an outer elastic part, an adapter part and an inner elastic part which are distributed in an S shape. The adapter part and the outer elastic part form a first buffer surface, the adapter part and the inner elastic part form a second buffer surface, the outer elastic part is connected with the bottom foot part, the inner elastic part is connected with the seat supporting part, and the front end of the seat supporting part is located over the first buffer surface. The seat body is integrally printed through the 3D printing technology, when a human body sits on the seat supporting part, generated acting force acts on the buffering part, at the moment, the first buffering face and the second buffering face deform at the same time and play a buffering role, the seat body is prevented from cracking due to impact, and the safety of the seat is improved. The service life and the comfort of the seat main body are improved.

The utility model relates to an assembly type component fixing device, which belongs to the technical field of assembly type component installation, and comprises an upper support plate, a load-bearing base, a fixing anchor rod, an assembly cover and a fixing bolt, the load-bearing base is uniformly provided with connecting plates, the load-bearing base is fixedly connected with a lower support plate, the top of the lower support plate is rotatably connected with the upper support plate, and the top of the lower support plate is fixedly connected with the assembly cover. A groove is formed in the upper supporting plate, first clamping strips are installed in the groove, a groove is formed in the lower supporting plate, second clamping strips are installed in the groove, and the number of the first clamping strips and the number of the second clamping strips of the upper supporting plate and the number of the second clamping strips of the lower supporting plate are both two. The fabricated component fixing device not only can be quickly unfolded for use and folded for storage, but also can be mutually spliced, is not only suitable for common strip-shaped fabricated upright posts, but also suitable for wide fabricated walls, has better applicability, is simple in structure and convenient to operate, and can effectively improve the construction efficiency.

The utility model relates to the technical field of heating mantle cooling, in particular to heating mantle forced cooling, and adopts the technical scheme that the heating mantle forced cooling device comprises a heating mantle, a cover cap is rotatably mounted on the top surface of the heating mantle, an air inlet pipe is fixedly mounted on the side surface of the outer wall of the heating mantle, and a communication valve is fixedly connected to one end, far away from the heating mantle, of the air inlet pipe; one end, far away from the air inlet pipes, of the communicating valve is connected with a transfer cabin, one side, far away from the air inlet pipes, of the transfer cabin is connected with a cold air pipe and a normal-temperature air pipe, and air input by the cold air pipe and air input by the normal-temperature air pipe can be mixed in the communicating valve and injected into the heating cover. By controlling the air inflow of the cold air pipe and the normal-temperature air pipe, the temperature of injected air is flexibly adjusted, and the effect that metal materials are cracked and damaged due to the fact that the temperature change is large within a short time is avoided.

The utility model discloses a bearing wheel with a good heat dissipation function, and belongs to the technical field of bearing wheels. The bearing wheel with the good heat dissipation function comprises a wheel body and a wheel shaft, the wheel body is installed on the wheel shaft in a rotating mode, the wheel body comprises a wheel core and a wheel face arranged on the outer side of the wheel core, at least one end of the wheel core is provided with a heat dissipation ring capable of rotating along with the wheel body, and heat dissipation blades are arranged on the outer side of the heat dissipation ring. The heat dissipation blades are distributed in a spiral radial shape, and a spiral flow guide groove is formed between every two adjacent heat dissipation blades. According to the bearing wheel, the heat dissipation ring is arranged at the end of the wheel core, heat dissipation airflow is generated through the heat dissipation blades when the bearing wheel rotates, the heat dissipation performance of the bearing wheel is improved, the working temperature of the bearing wheel can be greatly reduced, the service life of the bearing wheel is prolonged, and the working stability of the bearing wheel is improved.