71results about How to "Flexible size adjustment" patented technology

The utility model relates to noise isolation device technical field, concretely relates to noise isolation and noise reduction protection integrated device, including a plurality of mutual splicing's protective plate, and the protective plate is composed of the outer frame board of setting at the outside and the sound insulation layer of setting at the central position department of outer frame board, and the sound absorption layer is arranged between the sound insulation layer and the outer frame board, the sound absorption layer is arranged between the sound insulation layer and the outer frame board, the sound absorption layer is arranged between the sound insulation layer and the outer frame board, the sound absorption layer is arranged between the sound insulation layer and the outer frame board, the sound absorption layer is arranged between the sound insulation layer and the outer frame board, the sound absorption layer is arranged between the sound insulation layer and the outer frame board, the sound absorption layer is arranged between the sound insulation layer and the outer frame board, the sound absorption layer is arranged between the sound insulation layer and the outer frame board, the sound absorption layer is arranged between the sound insulation layer and the outer frame board, the sound absorption layer is arranged between the sound insulation layer and the outer frame board, the sound absorption layer is arranged between the sound insulation layer and the outer frame board, the sound absorption layer is arranged between the sound insulation layer and the outer frame board, the sound absorption layer is arranged between the sound insulation layer and the outer frame board, the sound absorption layer is arranged between the sound insulation layer and the outer frame board, the sound absorption layer is arranged between the

The application discloses a galvanizing line air knife device and belongs to the technical field of air knives.The air knife device comprises a ring-shaped air knife shell, a base mounted on the ring-shaped air knife shell, a gas guide cavity formed in the ring-shaped air knife shell, a first gas connection end and a second gas connection end oppositely arranged on the ring-shaped air knife shell, a gas guide hose connected between the first gas connection end and the second gas connection end, a gas outlet ring arranged on the inner side of the ring-shaped air knife shell, and an adjusting mechanism arranged in the gas guide cavity of the ring-shaped air knife shell.The adjusting mechanism comprises a fixing ring arranged in the gas guide cavity of the ring-shaped air knife shell.The size of the air knife air port can be quickly adjusted according to the thickness and running speed of the galvanized plate, for example, the air flow pressure is reduced when processing thin plates to avoid blowing the plates, and the pressure is increased when processing thick plates to ensure that the thickness of the zinc layer meets the standards.Compared with a traditional single-structure air knife, the size of the air port can be flexibly adjusted, the air knife can be adapted to galvanized plates with different thicknesses and running speeds, and the universality of the equipment is improved.

The utility model discloses a flexible board fixing multi-size adjusting jig which comprises an outer frame and a flexible board body arranged on the inner side of the outer frame, and further comprises a transverse adjusting assembly, and the transverse adjusting assembly comprises first supporting plates arranged on the tops of the two sides of the outer frame and a first sliding strip arranged between the two first supporting plates; the vertical adjusting assembly comprises second supporting plates arranged at the tops of the two ends of the outer frame and a second sliding strip arranged between the two second supporting plates, and a measuring strip is arranged at the bottom of the second sliding strip; a measuring bottom plate is arranged at the bottom of the inner side of the outer frame, and the measuring bottom plate and the measuring strips are further provided with limiting clamps used for fixing the flexible board body. According to the utility model, the transverse adjusting assembly and the vertical adjusting assembly are adopted in the outer frame to form a slidable support structure, so that the size of the jig is more flexible to adjust, and an operator can easily adjust the size of the jig according to requirements to adapt to the production requirements of soft boards with different specifications.

The application discloses a camera accessory, comprising a base, a front panel and at least one side panel, the front panel is detachably connected with the base; the side panel is detachably connected with the base and is located at a different side of the base from the front panel, the front panel, the side panel and the base enclose an installation space for placing a camera; at least one of the front panel, the side panel and the base is used for connecting with the camera. Compared with the prior art, the application realizes the modular assembly of the camera accessory by detachably connecting the front panel and the side panel with the base, facilitates flexible adjustment of the size and the connection position of the front panel and the side panel according to the camera model, and improves the adaptation compatibility; in actual use, a user can select to install the front panel or the side panel according to a shooting task: when higher protection and expansibility are needed, the front panel and the side panel are simultaneously assembled to form a more complete enclosure; when lightweight or avoidance of specific accessories is needed, only the base and one of the front panel and the side panel can be reserved.

A brake handle with a dynamically variable rotation center in the braking process comprises a brake shell, a piston assembly, a push rod assembly, a brake handle, a multi-fulcrum linkage component and a rotation switching mechanism. The shell is provided with a piston cavity. The handle drives the piston to move through the push rod. The linkage component is provided with two rotating fulcrums, and the switching mechanism can switch two working states. When the front section of the handle is pinched, the handle rotates around the first fulcrum, idle stroke is eliminated, and operation is labor-saving. When the rear section is pinched, the second fulcrum is switched to rotate, and the lever ratio is increased to improve braking force. By means of automatic switching of double fulcrums, labor-saving control and large braking force output are both considered, and the problem that a traditional hydraulic brake handle is poor in performance is solved; the modular structure is easy to adapt to mass production, and switching nodes are accurate and controllable; a locking and failure protection structure is arranged, so that the operation is stable and safe; meanwhile, eccentric wear of parts is eliminated, the service life of sealing pieces is prolonged, and braking efficiency and use safety are improved.

This utility model relates to the field of cable drag chain technology and discloses a machine tool drag chain with cable protection. The machine tool drag chain with cable protection includes a drag chain body, with a mounting groove at one end of the drag chain body containing a clamping component. The side wall of the drag chain body is provided with an adjustment mechanism that allows for flexible adjustment of the drag chain size. This machine tool drag chain with cable protection, through the coordinated design of the adjustment mechanism, connector, slide, limit block, connecting rod, compression spring, and fixing block, achieves flexible adjustment of the drag chain size. The dumbbell-shaped slide inside the connector cooperates with the limit block, allowing the connecting rod to slide within the slide. The elasticity of the compression spring ensures that the limit block is stably fixed at the larger size of the slide, thereby ensuring smooth and reliable adjustment. Furthermore, the connecting mechanism allows the drag chain to have a certain angular deflection effect.

The utility model provides a spliced mattress. The spliced mattress comprises a plurality of mattresses, the mattresses are all sleeved with first cloth covers, and the first cloth covers are connected through first zippers; the second cloth cover is connected to one of the first cloth covers through a second zipper, and a pillow cushion is arranged in the second cloth cover. The spliced mattress provided by the utility model solves the technical problems that the existing mattress cannot be folded and is difficult to adapt to bed boards with different lengths.

The utility model discloses a composite material forming die with flexible and adjustable size, which comprises a support component and a base, and a flat plate is fixed on the upper side of the base; the female die assembly comprises an L-shaped positioning die body, a first block die body, a second block die body and a third block die body, the positioning die body is fixed to the flat plate, one end of the positioning die body is detachably connected with one end of the first block die body, and the other end of the positioning die body is detachably connected with the third block die body. The other end of the positioning mold body is detachably connected with one end of the second block mold body, and the two ends of the third block mold body are detachably connected with the other end of the first block mold body and the other end of the second block mold body respectively; the inner side of the positioning mold body, the inner side of the first block mold body, the inner side of the third block mold body, the inner side of the second block mold body and the upper side of the flat plate form a forming cavity; the production requirements of products with different sizes can be met through simple adjustment, the application range is widened, and the preparation cost is reduced.

The invention relates to the technical field of fuel cells, and discloses a fuel cell humidifier with a novel structure, the fuel cell humidifier comprises a main body shell and a bundling shell, the bundling shell is assembled on an internal end plate of the main body shell, and the bundling shell is provided with an internal slide block structure; the internal sliding block structure is in sliding fit with an end plate in the main body shell so as to adjust the size of the bundling shell, a hollow fiber membrane tube is arranged in the bundling shell, the hollow fiber membrane tube is fixed with the main body shell through a pouring sealant surface, two ends of the main body shell are detachably connected with end covers, and the end covers are used for being connected with a dry gas path. A pressure regulating valve is installed on the main body shell and used for balancing the pressure difference of a dry path and a wet path, and a connector sliding block is arranged at a connector of the main body shell and is in sliding connection with the connector of the main body shell so as to adjust the direction of the connector of the wet path. The humidifier is used for solving the problems that an existing humidifier is insufficient in anti-compression and anti-impact strength, poor in plasticity and limited in adaptability, and the use stability is affected by differential pressure fluctuation of a dry path and a wet path.

The utility model relates to the technical field of house building construction, in particular to a material placing frame capable of being installed in a combined mode, which comprises a support body, and a layer plate assembly is installed on the outer wall of the support body in an attached mode. According to the improved material placing frame, the inserting bolts, the B-shaped pins, the supporting frames and the supports are installed, the height and the layer number of the placing frame can be freely adjusted, the first inserting plates, the second inserting blocks and the brackets are installed, the length and the width of the layer plate assemblies can be freely expanded, and through the modularized assemblies, the size can be flexibly adjusted according to needs, and rapid disassembly, assembly and expansion can be achieved; the goods shelf is suitable for different building material specifications, the utilization rate of longitudinal space is effectively improved through multi-layer installation, the occupied area is reduced, and therefore the overall space utilization rate, environment adaptability and storage efficiency are improved, damaged parts can be locally repaired or replaced under the condition that construction is not affected, frequent replacement or splicing of the whole goods shelf is avoided, and the labor intensity of workers is lowered. The labor cost is reduced, and the overall construction efficiency is improved.

The utility model discloses a telescopic cross heightening frame which comprises two sleeve plates, four sliding plates and four stand columns, the two sleeve plates are arranged in a cross mode, and the top faces and the bottom faces of the two sleeve plates are located on the same plane; the four sliding plates are arranged in the two sleeve plates in a sliding mode respectively, and the sliding plates cannot be separated from the sleeve plates. The four stand columns are vertically arranged at the ends of the four sliding plates correspondingly. Each sleeve plate comprises a first composition plate and a second composition plate, and the first composition plate and the second composition plate are the same in structure. According to the device, the two sleeve plates which are arranged in a crossed mode are designed, and the sliding plates are arranged in the sleeve plates in a sliding mode, so that the sliding plates can slide along the sleeve plates, and the distance between the sliding plates is adjusted to adapt to appliances of different sizes. Meanwhile, the stand column is arranged at the end of the sliding plate, and stable supporting is provided for the appliance. In addition, the sleeve plate is composed of the first composition plate and the second composition plate which are the same in structure, machining and assembling are convenient, and the production cost is reduced.

The application discloses a kind of multi-channel adaptive real-time signal processing methods, comprising the following steps: to multiple analog input signals are synchronously sampled, obtain multi-channel digital signal;The multi-channel digital signal is adaptively filtered and processed, and low-pass filtering and median filtering are executed in parallel for the digital signal of the same channel;Signal zero-crossing point is identified based on zero-crossing detection principle, and multi-cycle synchronous measurement strategy is used, and the frequency value of each channel signal is calculated according to the frequency range of multi-channel digital signal;To the filtered multi-channel digital signal, square sum is accumulated to sampling value using time sliding window, and the effective value of each channel signal is calculated by hardware accelerated square root algorithm;The frequency value and effective value calculated by each channel are output through the preset communication interface or analog output channel.

The utility model belongs to the technical field of medical auxiliary instrument, concretely relates to a kind of supporting device, including multiple supporting pieces of slidingly being arranged on bed board, each supporting piece is including supporting rod and mounting, the both sides of bed board are provided with slide rail, multiple mounting are slidably arranged on each slide rail, and each supporting rod both ends are connected with corresponding mounting;The slide rail includes first sliding slot and second sliding slot, one end of first sliding slot and second sliding slot is communicated, when supporting piece is located first sliding slot, supporting rod is located above bed board, when supporting piece is located second sliding slot, supporting rod is located below bed board.The utility model is slidably arranged with multiple supporting pieces, and then corresponding number of supporting pieces can be selected according to needs and its interval is adjusted to realize the support of cotton quilt corresponding position, and when not using, it can be directly slid to the end of bed board and stored under the tail of bed.

This utility model relates to the field of building construction technology, specifically to a modular cast-in-place mold for reinforced concrete hollow sandwich slabs, comprising a mold frame assembly and a baffle assembly. The mold frame assembly includes a first mold frame, at least one second mold frame, and a third mold frame. The first mold frame has a first protrusion at one end, the second mold frame has a corresponding first recess at one end and a second protrusion at the other end, and the third mold frame has a corresponding second recess at one end. By interlocking the first protrusion with the first recess and the second protrusion with the second recess, the overall size of the mold frame assembly can be adjusted by increasing or decreasing the number of second mold frames to accommodate different slab specifications. The baffle assembly is detachably connected to the assembled mold frame assembly, together forming the casting cavity. The modular, standardized design and detachable nature of the mold frame assembly and baffle assembly improve standardization and reusability; standardized modular assembly shortens the construction cycle and reduces construction costs.

The utility model discloses a movable spraying device for a working face, and relates to the technical field of coal mining equipment. The working face movable type spraying device comprises two adjusting type moving structures, a driving structure is arranged between the two adjusting type moving structures, dust falling nozzles are arranged on the inner sides of the adjusting type moving structures, a water storage structure is arranged on the outer side of the adjusting type moving structure on the right side, and the water storage structure is connected with the dust falling nozzles; according to the spraying device with the movable working face, by arranging the adjusting type moving structures and the driving structures, the adjusting type moving structures can adjust the lengths of the adjusting type moving structures so as to change the dust falling height of the dust falling spray head, and then the driving mechanisms are matched to adjust the interval between the two adjusting type moving structures so as to adjust the dust falling range of the dust falling spray head; the size of the spraying device can be flexibly adjusted according to the requirements of the actual working environment, and water mist sprayed in the spraying process can evenly cover the whole working face.

The utility model discloses an assembled light inner partition wall splicing node structure belongs to splicing node technical field, including support frame, connecting plate and adapter pole, the both sides of support frame all are established recessed mounting slot, the both sides of connecting plate all are fixedly connected with the first convex mounting block of recessed mounting slot adaptation, the one side and the front of adapter pole all are fixedly connected with the second convex mounting block of recessed mounting slot adaptation, the front of fender is fixedly connected with fixed frame, the upper and lower surface of support frame all are fixedly installed with fixed plate, the front and back of fixed plate all are fixedly connected with fixed assembly. The utility model discloses through setting up support frame, has simplified the assembly process, improved work efficiency, satisfied the diversified use demand, through setting up fixed assembly, effectively prevented the component loosening or falling off in the use, improved the security and stability of overall structure, simplified maintenance work, reduced maintenance cost.

The invention discloses an elastomer structure for a high-rotating-speed flange type torque sensor rotor and a design method. The elastomer structure comprises a left flange plate, a right flange plate and a middle main body section, wherein the left flange plate and the right flange plate are integrally formed; the middle main body section is located between the two flange plates; the middle main body section is sequentially provided with a strain measuring area, an induction clamping ring mounting area and a rotating speed measuring area along the axial direction; a circle of annular groove is formed in the induction clamping ring installation area, a non-metal induction clamping ring with the inverted-T-shaped section is installed in the annular groove in a matched mode, a concave aluminum alloy pressing ring is arranged on the left side of the induction clamping ring, and the pressing ring and the elastic body are fastened through a bolt to form a concave-convex-concave embedded type fixing structure. Through the structural design of the groove, the contact area of the clamping ring and the elastic body is increased, the limit stress of the clamping ring is effectively reduced, and the clamping ring adapts to the high-rotating-speed working condition.

The utility model discloses a printing roller ink scraper capable of being externally connected, which comprises a supporting shell, an even number of symmetrical rolling shafts are rotatably arranged in a groove of the supporting shell, and the supporting shell is connected with a supporting plate through a sliding shaft and a spring. The supporting plate is rotationally provided with a bent swing rod, the swing rod is provided with a limiting rack, and the inner supporting rod and the outer supporting rod are connected through a limiting sliding frame. A long shaft of the outer supporting rod is provided with a limiting rod matched with a limiting rack ratchet wheel. The ink scraper is composed of a sliding seat, a sliding rod, a mounting rod and a scraper. The ink scraping device can be directly installed on the upper printing roller shaft and the lower printing roller shaft and is suitable for printing rollers of various specifications, the ink scraping angle and position are flexibly adjusted through cooperation of limiting and the ratchet wheel and buffering stable supporting of the spring, the problems that a traditional ink scraping device is poor in installation adaptability, inconvenient to adjust, insufficient in stability and the like are solved, and the ink scraping effect of the printing rollers and the device universality are improved.

The utility model relates to the field of electronic equipment shells, in particular to a size-adjustable optical fiber demodulator shell, which comprises a bottom plate, side plates and fixing corners. The fixing corner is of a triangular prism structure and comprises a first edge and a second edge, the first edge is provided with a first connecting part, the second edge is provided with a second connecting part, the first edge is connected with one side plate through the first connecting part, and the second edge is connected with the other side plate through the second connecting part; first connecting holes are formed in the two ends of the fixing corners, first mounting holes are formed in the bottom plate, and the bottom plate is connected with the ends of the fixing corners through the first mounting holes and the first connecting holes. Flexible size adjustment is achieved through splicing of the bottom plate, the side plates and the fixing corners, spare part types are reduced through standardized modules, production and inventory cost is reduced, the sizes can be freely combined according to actual requirements, the whole shell does not need to be customized, the delivery cycle is shortened, only the single side plate or the fixing corner needs to be replaced when local damage occurs, and cost is saved. And the whole shell does not need to be scrapped.

The application belongs to the field of power equipment support, and relates to a power equipment combined support, which comprises a mounting seat, a limiting mechanism fixedly connected to the outer surface of the mounting seat, an adjusting mechanism attached to the lower surface of the mounting seat, the limiting mechanism comprising a connecting block fixedly connected to the lower surface of the mounting seat and a limiting rod, the outer surface of the mounting seat being threadedly connected with a limiting bolt, the adjusting mechanism comprising a limiting frame attached to the lower surface of the mounting seat, and the inner wall of the limiting frame being slidingly connected with an extension frame, the power equipment combined support belonging to the technical field of power equipment support; the power equipment combined support is flexible in size adjustment, suitable for different specifications of equipment, and capable of driving the extension frame to slide the threaded rod in the through hole, rotating the nut after the length is determined, and fixing the gasket to the limiting frame by the deformation of the clasp spring to form different rectangular structures, thereby meeting the diversified installation requirements and preventing the sliding block from being separated, and ensuring the use safety.

The utility model relates to the technical field of plastic partition, disclose a plastic partition with buffer structure, including roof one, the one side of roof one is connected with roof two with sliding, the bottom fixed connection of roof one has buffer mechanism, the bottom fixed connection of buffer mechanism has bottom, the outer wall fixed connection of bottom has splicing mechanism, splicing mechanism includes fixed base, the outer wall rotation is connected with lock shell of fixed base, the one side rotation is connected with lock block of fixed base, the outer wall of lock shell has set up through -hole, the outer wall rotation is connected with two fixed blocks no. Two the inner wall fixed connection of fixed block no. Two all has the connecting column. In the utility model, when roof one and roof two are impacted, the spring is extruded downwards, the spring is influenced by the friction of rubber ring, the rebound speed is slowed down, the buffering effect is enhanced, the movable range of roof is limited by limit groove no. One and protruding block, and the loss of goods is reduced.

The utility model provides a kind of noise reduction assembly, air outlet device and air conditioner indoor unit, and noise reduction assembly includes: noise reduction pipe fittings, including the main pipe body and noise reduction shell being connected with each other, main pipe body is enclosed into inflow port, outflow port and the flow-through passage being communicated with inflow port and outflow port, main pipe body is provided with the noise reduction through-hole being communicated with flow-through passage, noise reduction shell is set in the side of main pipe body away from flow-through passage and with the at least part of main pipe body interval arrangement to enclose into noise reduction chamber, to make the airflow in flow-through passage enter into noise reduction chamber through noise reduction through-hole;Wherein, main pipe body and noise reduction shell can be deformed to be set to stretch and contract, to when main pipe body and noise reduction shell are lengthened or shortened, the radial distance between the at least part of main pipe body and noise reduction shell reduces or increases. By the technical scheme provided by the utility model, the technical problem that the noise reduction effect of airflow noise in the prior art is poor can be solved.

The utility model belongs to the technical field of protective sheds, and particularly relates to a protective shed for constructional engineering, which solves the problems of insufficient comfort and insufficient practicability in the prior art, and comprises a main shed body, a main shed assembly, an auxiliary shed assembly, a heat dissipation assembly and an auxiliary assembly, the auxiliary shed assemblies are arranged on the two sides of the main shed body, the heat dissipation assemblies are arranged on the two sides of the auxiliary shed assemblies, the auxiliary assemblies are installed at the bottom of the main shed assembly, and through arrangement of structures such as a lead screw motor and the auxiliary shed bodies, a bidirectional lead screw is driven by the lead screw motor to rotate, so that sliding of the two auxiliary shed bodies is achieved; the size of a protection area is flexibly adjusted, a sealing gasket is designed to effectively prevent rainwater from permeating, an external pipeline is connected with a water source, a first spraying head and a second spraying head spray water mist, dust in the construction period is reduced, a servo motor drives a straight shaft to rotate, the angle of an axial flow fan is adjusted, blowing cooling is conducted after starting, and the comfort of the construction environment is improved.

The invention relates to the field of mechanical surface engineering and bionic design, in particular to a bionic tooth surface microstructure concrete design method. The method comprises the following steps: acquiring point cloud data of a shell body surface, and constructing a shell body surface three-dimensional model by using the point cloud data; constructing a bionic coupling element matrix by using the shell body surface three-dimensional model; constructing an equal-arc-length parameter sequence and a gray mapping matrix based on the bionic coupling element matrix, and constructing a structural feature matrix by using the equal-arc-length parameter sequence and the gray mapping matrix; and establishing a tooth surface geometric model of the target gear, and mapping the structural feature matrix to a parameter domain of the tooth surface geometric model to obtain initial micro-texture geometric distribution. And constructing a morphological design parameter matrix, and regulating and controlling the initial micro-texture geometric distribution by using the morphological design parameter matrix to obtain a bionic tooth surface micro-texture model. The problem that in the prior art, a quantitative conversion method from biological structure geometric characteristics to engineering tooth surface micro-texture design parameters is lacked is solved.

The application relates to a fertilizer particle cooling device for fertilizer production, which comprises a conveyor for conveying the granular fertilizer, a feeding hopper for feeding on both ends of the conveyor, and a guide frame for discharging on both ends of the conveyor, a discharge port for discharging is formed in the feeding hopper, an adjusting unit is slidably arranged on the discharge port, a cooling bin is arranged on the conveyor, and a cooling unit is arranged on the cooling bin; two material distribution mechanisms are oppositely arranged in the cooling bin, the material distribution mechanism comprises a fixed plate arranged above the inner wall of the cooling bin, the size of the discharge port can be flexibly adjusted through the adjusting unit, so that the flow of the fertilizer particles falling from the feeding hopper to the conveyor is kept balanced, the fertilizer particles can be dispersed through the material distribution mechanism, gaps are formed among the fertilizer particles, the contact area of the fertilizer particles and the cooling gas is increased, and the cooling effect is improved.

The utility model relates to the field of cable wheel discs, in particular to a cable wheel disc which comprises a center cylinder, two oppositely-arranged baffle discs and an adjusting device, the center cylinder is composed of two telescopic cylinders which are matched in an inserted mode and connected in a sliding mode, and the adjusting device achieves the telescopic function of the center cylinder through threaded connection of a lead screw and the telescopic cylinders. In addition, the cable wheel disc is further provided with a sliding rail and sliding groove matching structure to enhance stability, the detachable multi-pulley design is arranged on the edge of the blocking disc to facilitate adjustment, and meanwhile an anti-rolling device is arranged to ensure use safety. The technical effects of improving the adaptability and safety of the cable wheel disc and optimizing the operation convenience are achieved.

The utility model relates to mechanical sling technical field, concretely relates to a telescopic hopper formula with gate machine welding frock, including base, the base left and right sides symmetry is provided with connecting rod, the connecting rod passes through base side wall and is connected with base sliding, and the inside of base is provided with adjusting assembly, adjusting assembly is used for adjusting the length that connecting rod is from base and projects, and one end of connecting rod is provided with moving plate outside base, and the moving plate is provided with the fixed component that is used for limiting sling telescopic arm on, this utility model discloses moving plate and the two fixed plates on upper clamping plate jointly form the clamping effect to sling telescopic arm, ensure that the gate machine sling telescopic arm keeps stable in the processing all the time, and can adjust the distance between two moving plates to adapt to the sling telescopic arm of different length.

This utility model provides a novel internal support mandrel for pipe bending, comprising: a mandrel body; an inner support core disposed on the inner side of the mandrel body; a connecting bolt disposed at one end of the inner support core; a through-bead threadedly connected to the outer side of one end of the connecting bolt; a spring disposed at the other end of the inner support core; and a screw threadedly connected to the inner side of the mandrel body. This novel internal support mandrel for pipe bending allows for adjustment of the position of the inner support core by rotating the through-bead, thereby changing the compression of the spring and flexibly adjusting the magnitude of the supporting force. In this way, the internal support mandrel can provide appropriate supporting force according to the needs of pipes with different diameters and bending angles, improving the accuracy of pipe bending.

The utility model discloses a kind of core shaft of stator core outer pressure installation of permanent magnet motor, it is related to permanent magnet motor technical field, including optical axis, the outside of optical axis is fixedly welded with multiple annular array arrangement's No. welding plate, No. welding plate is equipped with sliding slot, the inside sliding connection of sliding slot has No. 2 welding plate, No. 2 welding plate is fixedly welded with arc support plate. In the utility model, optical axis, No. welding plate, No. 2 welding plate and arc support plate, commonly form a web welding core shaft, guarantee the position stress uniformity of core shaft and seamless steel pipe inside contact, so that core shaft is more not easy to deform when being subjected to external force, to extend the service life of core shaft.