31results about How to "Improve connection quality" patented technology

The utility model discloses a mechanical connecting structure for prefabricated pipe piles. The mechanical connecting structure comprises a cylindrical hoop, an upper pipe pile connecting assembly, a lower pipe pile connecting assembly and a middle connecting assembly. The upper pipe pile connecting assembly is connected to the upper end of the cylindrical hoop, the lower pipe pile connecting assembly is connected to the lower end of the cylindrical hoop, the middle connecting assembly is connected to the middle of the inner wall of the cylindrical hoop, the upper pipe pile connecting assembly is connected to the lower end of an upper pipe pile, and the lower pipe pile connecting assembly is connected to the lower end of a lower pipe pile. The lower pipe pile connecting assembly is connected with the upper end of a lower pipe pile, and the upper end and the lower end of the middle connecting assembly are connected with the upper pipe pile and the lower pipe pile respectively. The middle connecting assembly comprises an annular end plate, and eight inserting rods are inserted into the upper circumference of the annular end plate at equal intervals; the upper ends and the lower ends of the eight inserting rods are connected with the upper pipe pile and the lower pipe pile correspondingly. The mechanical connection structure for the prefabricated pipe piles aims to overcome the existing defects, and solves the problem of connection strength of the pipe piles.

The application discloses a hot isostatic pressing diffusion connection synchronous aging treatment method for high-temperature alloy and copper alloy, relates to the field of dissimilar metal solid-phase welding, and can improve the strength of the high-temperature alloy, inhibit size distortion caused by stress change in the aging process, improve machining precision, shorten the process cycle of finished products and greatly improve production efficiency. Step 1: high-temperature alloy with a predetermined structure is prepared, and solid solution treatment is carried out; step 2: copper alloy with a predetermined structure is prepared, the surfaces of the high-temperature alloy and the copper alloy are polished smooth and cleaned; step 3: the copper alloy and the high-temperature alloy structure are attached to the surfaces to be connected, and vacuum sealing is carried out; step 4: the structure after sealing is sent into a hot isostatic pressing furnace to carry out hot isostatic pressing diffusion connection and in-furnace aging treatment, so that a final product is obtained. According to the hot isostatic pressing diffusion connection synchronous aging treatment method, the strength of the high-temperature alloy is improved, size distortion is inhibited, machining precision is improved, the process cycle of finished products is shortened, and production efficiency is improved.

The utility model discloses a special carrier for data line connector crimping in the technical field of data line processing, which comprises a working table, a data line body arranged in the middle of the working table, a crimping mechanism arranged above the working table, a molding mechanism arranged above the crimping mechanism, and a supporting seat fixedly mounted at the upper end of the working table, a mounting plate is fixedly mounted in the middle of the supporting seat, a hydraulic cylinder is fixedly mounted on the mounting plate, a connecting plate is fixedly connected to the transmission end of the hydraulic cylinder, a crimping block is fixedly mounted at the lower end of the connecting plate, a glue melting box is fixedly mounted at the rear end of the mounting plate, a pressurizing plate is arranged at the upper end of the glue melting box, and a connecting rod is fixedly mounted in the middle of the pressurizing plate. The special carrier for data line connector crimping is additionally provided with the crimping mechanism and the molding mechanism, and the beneficial effects of the crimping mechanism and the molding mechanism are reflected in that the crimping and molding processes of the data line connector are efficiently and stably completed, so that the production efficiency is improved, the product quality is ensured, and a reliable solution is provided for data line processing.

This application relates to an installation device and vehicle for a cab suspension bracket, including a first mounting member connecting to the first suspension bracket, the first mounting member including a first assembly portion and a second assembly portion; and a second mounting member connecting to the second suspension bracket and capable of connecting to the first mounting member; the second mounting member includes a first positioning portion and a second positioning portion respectively matching the positions of the first assembly portion and the second assembly portion; the first positioning portion and the second positioning portion are respectively connected to the first assembly portion and the second assembly portion, so that the first mounting member and the second mounting member are connected. This application can limit and position the first suspension bracket and the second suspension bracket in at least two directions, significantly improving the accuracy of the connection between the first suspension bracket and the second suspension bracket; through the precise positioning of these two brackets during the installation process, the connection quality and stability between the cab and the frame are effectively improved, making the installation process simpler and more reliable.

The utility model relates to the technical field of pipe fitting connecting devices, and discloses a porcelain tube with a quick connecting structure, which comprises a porcelain tube I, a porcelain tube II is connected to the right side of the porcelain tube I in a sliding manner, an annular groove is formed in the right side of the outer wall of the porcelain tube I, and a fixing hoop is fixedly connected to the outer wall of the porcelain tube I; an annular protruding edge is fixedly connected to the left side of the outer wall of the second porcelain tube, a threaded hoop is slidably connected to the outer wall of the second porcelain tube, and a sealing mechanism is arranged outside the annular protruding edge and used for preventing materials in the tube from leaking. According to the utility model, through the cooperation of the annular groove and the annular rib, the first porcelain tube and the second porcelain tube can be rapidly and preliminarily positioned, and through the threaded connection of the threaded hoop and the fixing hoop, the fastening force can be effectively transmitted, and the threaded hoop and the fixing hoop can be tightly attached, so that the first porcelain tube and the second porcelain tube can be firmly fixed together. And the stability and the reliability of the connecting structure are enhanced.

The utility model relates to the technical field of pipe pile mechanical connection, and discloses a pin joint type and buckle type combined pipe pile mechanical connection structure which comprises a sleeve, an end plate is arranged in the middle of the sleeve, a steel pin rod is arranged on the inner wall of the end plate, a buckle groove is formed in the outer wall of the sleeve, a prestressed pipe pile is connected to the inner wall of the sleeve in a sleeved mode, and the prestressed pipe pile is connected with the buckle groove in a sleeved mode. A buckling groove is formed in the inner wall of the prestressed pipe pile, a buckling device is placed on the inner wall of the buckling groove, a first gasket is placed at the bottom of the buckling device, a second gasket is placed at the top of the buckling device, and a steel pin hole is formed in the inner wall of the prestressed pipe pile. According to the novel prefabricated pipe pile mechanical connecting structure combining pin joint type connection and buckle type connection, the problem of pipe pile connecting strength is solved, complicated and time-consuming welding or bolt reinforcement in the existing pile connecting process is avoided, the strength is sufficient, and meanwhile the pipe pile connecting efficiency is improved.

The utility model provides a connecting line crimping contact pin structure, the connecting line crimping contact pin structure comprises a connecting material belt and a plurality of crimping contact pins, the connecting material belt and the crimping contact pins are integrally formed through punching, the connecting material belt is provided with a positioning through hole, one side surface of the connecting material belt is convexly provided with a positioning bulge, and the positioning bulge is used for limiting the connecting material belt; the plurality of crimping contact pins are arranged at the extending end part in the width direction of the connecting material belt at intervals, each crimping contact pin is provided with a line connecting groove, one end, adjacent to the connecting material belt, of each crimping contact pin is provided with an inclined plane cutting groove, and the connecting material belt is convexly provided with an inclined plane supporting block which is adaptively embedded into the inclined plane cutting groove. The positioning through holes and the positioning protrusions on the connecting material belt are subjected to dual positioning in installed crimping equipment, so that the installation positions of the multiple crimping contact pins on the connecting material belt are accurate; and the connecting material belt is bent towards one side deviating from the inclined plane cutting groove, so that the crimping contact pins are quickly disconnected from the connecting material belt, and the production efficiency of connection of the plurality of crimping contact pins and the connecting wire is improved.

A laser-assisted rivet-free riveting method of composite and metal materials, first, the composite material is stacked on the metal material to complete the laser ring cutting of the composite material through the annular laser to form regular through holes; then the connecting plate is pre-tightened by pressing the concave die; under the forming force of the convex die upward movement, the metal material is plastically deformed and rivet-free riveting is formed at the hole cutting part of the composite material; the waste cutting is collected under the condition of not completely opening the riveting die by opening the concave die outer cylinder in sections. The present application utilizes the difference in the absorption capacity of resin-based composite and metal materials for specific laser waveband laser energy, realizes the continuous process of laser cutting composite and metal material plastic deformation, and further realizes the rivet-free riveting of composite and metal materials without pre-punching, which is suitable for the connection of composite and metal materials with different resin materials as the matrix, and the connection head can have a certain tensile strength.

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 invention provides a micro-channel heat exchange device based on high-entropy alloy connection and a preparation method and application of the micro-channel heat exchange device. According to the micro-channel heat exchange device, the connection quality of the joints of all layers of the micro-channel heat exchange device is improved, the tensile strength, the corrosion resistance and the hydrogen embrittlement resistance are improved, and the compactness, the corrosion resistance and the hydrogen embrittlement resistance of the fluid contact surface in the micro-channel heat exchange device are improved; the strength, the corrosion resistance and the hydrogen embrittlement resistance of the micro-channel heat exchange device are integrally improved, so that the micro-channel heat exchange device based on high-entropy alloy connection is suitable for places with high requirements for the space utilization rate and the reliability such as a hydrogen refueling station, and is particularly applied as a micro-channel heat exchanger of a hydrogen cooling system of the hydrogen refueling station.

A longitudinal connecting device for steel arches comprises a plurality of connecting ribs, the connecting ribs and the steel arches are arranged in a one-to-one correspondence mode, the connecting ribs are connected to webs of the steel arches in an inserted mode through fixing assemblies, and every two adjacent connecting ribs are connected through a connecting piece. According to the design, the connecting ribs are connected with the steel arches in an inserting mode, compared with welding, the connecting speed is high, the two connecting ribs are in butt joint through the connecting pieces, and the butt joint precision is high; meanwhile, the connecting ribs are connected with the steel arch frame through the fixing assemblies, the fixing effect is good, traditional welding connection is replaced with mechanical connection, fire operation in a tunnel is avoided, and particularly potential safety hazards in the tunnel with gas are greatly reduced; the connection mode of the I-shaped steel of the steel arch and the connecting ribs is directly converted from passive contact connection of the I-shaped steel and the connecting ribs into the mode that the two materials form a whole through structure interpenetration, external force is borne through the material strength, and the connection quality is greatly improved.

This utility model discloses a double-bonded, non-scraping grout-stopping tape, relating to the field of grout-stopping tape technology. It includes a grout-stopping tape substrate with a plurality of staggered and evenly distributed large and small teeth integrally connected to the upper surface of the substrate. The substrate is composed of a sealing layer, an adhesive transition layer, a fiber reinforcement layer, and a polymer wear-resistant layer. The sealing layer is made of natural rubber or nitrile rubber, the adhesive transition layer is made of resin adhesive, the fiber reinforcement layer is made of glass fiber, and the polymer wear-resistant layer is made of high-density polyethylene or polytetrafluoroethylene. The large teeth have a right-angled trapezoidal structure, and the small teeth have grooved protrusions. This utility model achieves double bonding and fixation, forming stable burrs on the surface of the precast component, improving connection strength, eliminating the need for scraping, and improving construction efficiency.

The application discloses a battery box and an energy storage device. The battery box comprises a box body and a temperature component. The box body comprises an outer shell and a lap joint part. The outer shell is enclosed to form an opening. The lap joint part is connected with the inner wall of the outer shell and is located at the opening. The temperature component is lapped on the lap joint part and closes the opening. The temperature component is provided with a containing cavity for containing temperature material. The temperature component and the battery pack are attached to adjust the temperature of the battery pack. Compared with the prior art, the application sets the lap joint part at the opening of the box body, laps the temperature component on the lap joint part and closes the opening. The temperature adjustment of the battery pack is realized by the containing cavity in the temperature component. The lap joint part provides the installation position for the temperature component. Before the temperature component is installed, the temperature component can be placed on the lap joint part. The lap joint part supports the temperature component, so that manual support or support of the temperature component is not needed, so as to facilitate the fixed connection between the temperature component and the box body and simplify the installation steps.

The invention provides a steel structure supporting device, and relates to the field of building steel structures, the steel structure supporting device comprises a supporting vertical beam and a connecting cross beam, and the outer wall of the supporting vertical beam is provided with a supporting piece; buckle positioning grooves are formed in the left and right ends of the bottom of the connecting cross beam; inserting positioning grooves are formed in the left and right ends of the front and rear sides of the connecting cross beam; locking screw holes are formed in the front side and the rear side of the connecting cross beam; a clamping positioning groove is formed in the connecting cross beam; a guide through groove is formed in the bottom of the connecting cross beam; according to the device, four connecting modes can be automatically triggered through the self weight of the connecting cross beam, the connecting stability is guaranteed, meanwhile, the connecting steps cannot be trivial, the connecting efficiency and the connecting quality are improved at the same time, the problem that during locking, the bolt locking step needs to be repeated many times is solved, and the connecting efficiency is improved. The problems that the connecting speed of the supporting device to the transverse beam and the vertical beam is low, and the efficiency of constructional engineering is lowered are solved.

This utility model provides a steel pipe pile assembly component and a steel trestle. The steel pipe pile assembly component includes a first sleeve, a second sleeve, and a partition plate. During assembly, two sections of steel pipe piles are respectively fitted into the first and second sleeves and then fixed with bolts. This avoids the series of processes involved in traditional welding operations, such as positioning, beveling, grinding, welding, and weld inspection, greatly improving installation speed. It also reduces the high requirements of traditional welding methods on the operating environment, enabling rapid construction even in complex environments such as the field, damp areas, and river channels. Unlike welding methods, it is not easily affected by human factors, leading to defects such as incomplete welds and cracks, resulting in better connection quality and stronger controllability. Furthermore, it avoids the disassembly difficulties associated with welding methods. After assembling the steel pipe piles using this assembly component, disassembly can be performed when necessary, facilitating the replacement of specific sections of the steel pipe piles or connecting parts, thus improving service life and maintenance efficiency.

The invention discloses an Internet of Things equipment multi-dimensional intelligent service scheduling method and system, and the method comprises the following steps: S1, request receiving and feature extraction: receiving a service scheduling request, and extracting scheduling feature information from the request; and S2, multi-dimensional scheduling rule matching: according to a preset priority sequence of scheduling feature information, carrying out matching query on the information in a multi-dimensional scheduling rule base in sequence, and once matching succeeds in a certain dimension, terminating a matching process and entering a service distribution stage. The method has the advantage of accurate and efficient scheduling, and solves the problems that in the service scheduling process of existing Internet of Things equipment, accurate and efficient scheduling of various different Internet of Things equipment is inconvenient, and scheduling faults and inconsistency are easily caused.

The utility model belongs to the technical field of building materials, and particularly relates to a welding stud beneficial to vertical welding, which comprises a stud body and a stud cap, one end of the stud body is arranged on the stud cap, and the other end of the stud body is uniformly provided with a plurality of drainage grooves extending to the edge of the end face. An arc striking body protruding out of the end face is arranged at the position where the drainage grooves converge at one point, and the nail cap is provided with a plurality of limiting open holes formed in the length direction of the nail body. A drainage groove is formed in the welding end of the nail body to evenly guide an arc striking body which is molten firstly to the edge of the end face, and the situation that the nail body cannot be perpendicularly arranged on a steel frame due to uneven distribution of molten fluid can be avoided. And meanwhile, the nail cap is also provided with a limiting open hole for positioning when being matched with a welding nail gun, so that the perpendicularity of the welding nail can be effectively ensured, the welding nail is prevented from rotating in the circumferential direction during solidification connection, and the connection quality of the welding nail and the steel frame is improved.

The utility model discloses a multi-section nested type self-adaptive reducing steel bar connecting sleeve assembly, and relates to the technical field of steel bar connecting sleeves. The multi-section nested type self-adaptive variable-diameter steel bar connecting sleeve assembly comprises two steel bars, and sleeve mechanisms and fixing mechanisms are arranged on the outer walls of the two steel bars; the fixing mechanism is located outside the sleeve mechanism. The sleeve mechanism comprises an inner cylinder; the fixing mechanism comprises an extrusion part and a fixing part; the device has the technical effects that after the fixing mechanism sleeves the joint of the reinforcing steel bars with the inner cylinder, the extrusion ring and the extrusion blocks can be fixed by moving and extruding the arc-shaped blocks and the extrusion blocks through the extrusion ring and then rotating a screw rod to extrude the inner side surface of the fixing frame through a nut, so that the device is easy to operate by constructors, and the efficiency is improved; in the structural aspect, all the components are matched with one another, the fixing frame, the extrusion ring, the fixing plate, the screw and the nut form a stable system, and the structural strength and the connection reliability are enhanced.

The application discloses an electrode assembly hot-pressing device and an electrode assembly hot-pressing method. The electrode assembly hot-pressing device comprises a carrier, a pressure head assembly and a lifting and pressing device. The carrier is used for carrying at least one electrode assembly, the electrode assembly comprises a plate body, an insulating adhesive layer and an electrode which are stacked, and the carrier fixes the outer edge of the plate body. The pressure head assembly comprises a first hot pressure head and a second hot pressure head which are respectively located on the two sides of the carrier. The lifting and pressing device is used for driving the first hot pressure head and / or the second hot pressure head to move, so that the first hot pressure head and the second hot pressure head press the electrode assembly from both sides. In the application, the first hot pressure head and the second hot pressure head press the electrode assembly on the carrier from both sides, and the electrode assembly and the insulating adhesive layer in the electrode assembly are heated from both sides, which is beneficial to rapidly heat the insulating adhesive layer to connect the plate body and the electrode, thereby improving the connection quality and the connection strength of each part of the electrode assembly.

The present application relates to a kind of glass solder for connecting aluminum nitride ceramic and its preparation method and application.The chemical composition of the glass solder for connecting aluminum nitride ceramic includes: 60-65wt.% ZnO, 20-25wt.% B2O3, 10-13wt.% SiO2 and 2-5wt.% Al2O3, and the sum of the mass percentage of each component is 100wt.%.

The application discloses an automatic electric wrench for reinforcing steel sleeve connection, which comprises a shell main body, a rotating assembly, an electric device and a supporting device; one end of the shell main body is a counterforce arm; one end of the shell main body is a circular arc body, and the circular arc body is circumscribed by an arc body; one end of the circular arc body is rotationally connected with one end of the arc body, and the other end is detachably connected; a plurality of grooves are formed in the top surfaces of the circular arc body and the arc body; a ring-shaped sliding groove is arranged on the inner ring of the circumferences of the circular arc body and the arc body; an arc-shaped earring extending in the direction of the circumferential outer wall of the rotating assembly is clamped into the ring-shaped sliding groove; a gear ring is distributed on the outer circumferential wall of the rotating assembly, and a rotating gear connected with the electric device is engaged with the gear ring. The application solves the problems of the existing electric wrench, such as complex structure, large weight, time-consuming and laborious manual operation, and inclination or falling of the wrench during the working process due to the self-weight bias.

The invention belongs to the technical field of hot melting connection of silicon core pipes, and particularly relates to a hot melting connection device for an HDPE (high-density polyethylene) silicon core pipe, which comprises a U-shaped outer frame, a butt joint mechanism, a clamping mechanism and a positioning mechanism. The butt joint mechanism is arranged on the U-shaped outer frame and controls the ends of the two silicon core pipes on the clamping mechanism to be close to each other. The number of the clamping mechanisms is two, each clamping mechanism comprises a connecting frame connected with the butt joint mechanism, two holding and clamping assemblies are arranged on each connecting frame, one holding and clamping assembly is relatively fixed to the corresponding connecting frame, and the other holding and clamping assembly is slidably connected with the corresponding connecting frame through an adjusting assembly. Through cooperation of the U-shaped outer frame, the clamping mechanism and the positioning mechanism, the clamping mechanism can be rapidly and accurately controlled to be fixed to the optimal clamping position of the silicon core pipe, the movement displacement of the two silicon core pipes can be accurately controlled to be the optimal displacement distance during hot melting butt joint, meanwhile, the pipe bodies are always in a low-bending-stress state in the clamping and cooling process, and the clamping effect is good. Therefore, the connection quality of the silicon core pipe during hot melting connection is greatly improved.

The utility model belongs to the field of machine manufacturing, and particularly relates to a differential shell convenient to assemble, which comprises a first shell, a second shell, a third shell, a fourth shell, a first rotating point and a second rotating point, the fourth shell and the third shell are also distributed up and down and are rotationally connected through a second rotating point arranged on one side, and the first shell, the second shell, the third shell and the fourth shell jointly form a complete shell structure. By arranging arc-shaped clamping holes, arc-shaped clamping rods, clamping blocks, springs and clamping grooves, the precise positioning and automatic locking functions among the first shell, the second shell, the third shell and the fourth shell are achieved, the phenomenon that the shell structures are separated relatively after being closed is effectively prevented, the stability of the whole shell structure is enhanced, and the service life of the shell structures is prolonged. And a reliable guarantee is provided for the subsequent bolt to be smoothly screwed into the bolt mounting hole and the fastening operation is completed, so that the assembly efficiency and the connection quality of the differential shell are greatly improved.

The application provides a pipe structure, which comprises a main body part, a side wall part of the main body part is provided with at least one through hole part, a center line of the through hole part does not intersect with a center line of the main body part, the through hole part comprises a through hole, and the through hole part comprises an extension part which is formed by processing the through hole of the side wall part by a hot melt drill; the extension part extends from the side wall part to both sides of the side wall part, so that the processing convenience and the processing efficiency of the through hole part can be relatively improved.

The invention relates to the technical field of metal material connection, in particular to a glue riveting connection control system and method, and is used for connecting a plate mechanism which comprises a first plate, a glue solution layer and a second plate which are arranged in the thickness direction of the plate mechanism. The glue riveting connection control system comprises a punch mechanism, a positioning mold, a blank holder mechanism, fluid guiding structures and a control mechanism, the symmetrical fluid guiding structures are arranged on the opposite surfaces of a blank holder body and the positioning mold, the fluid guiding structures communicate with the external environment, and in the glue riveting process, the fluid guiding structures are connected with the punch mechanism. A pressure difference is formed between a high-pressure area generated by the glue solution layer due to pressure and the external environment, so that glue solution in the glue solution layer can directionally flow along the fluid guide structure, hydrostatic pressure generated by the glue solution layer is reduced, the geometric accuracy and the connection quality of a formed connecting piece after glue riveting connection are improved, and the service life of the connecting piece is prolonged. And meanwhile, while the glue liquid discharging efficiency is guaranteed, the uniform glue liquid layer thickness is kept, and the bonding strength of the glue riveting connection process is improved.

The application discloses a kind of low plasticity metal pipe blank viscous medium circumferential progressive expansion joining method and device, belong to pipe plate expansion joining technical field.Utilize plunger movement extrusion viscous medium, and through the rotation of mandrel, the pressure that plunger provides viscous medium is circumferentially progressively applied to pipe blank, let pipe blank locally occur deformation, embed the recess that is opened inside pipe plate hole, after mandrel rotates multiple times, pipe blank gradually with pipe plate recess is fitted, form firm mechanical lock, complete expansion joining process.The application solves the current low plasticity metal pipe blank expansion joining deformation difficult, expansion joining after pull-off force small and so on, can effectively improve the connection quality of low plasticity metal pipe blank-pipe plate.Using viscous medium circumferential progressive expansion joining method, wall thickness distribution is uniform during plastic deformation of pipe blank, stress state is reasonable, increase the service life of connected joint.

The application discloses a solderless double-pipe liquid reservoir, which comprises a cylinder, an air inlet pipe and an air outlet pipe; the cylinder comprises an air inlet end formed by spinning at one end, the air inlet pipe is connected and fixed to the air inlet end, the cylinder further comprises an air outlet end provided with two air outlet holes at the other end, and two air outlet pipes are connected to the air outlet end by penetrating through the two air outlet holes respectively. The liquid reservoir of the application can reduce the cost without increasing the welding times, effectively balances the cost and environmental protection, and solves the connection quality problem caused by welding, thereby solving the problems of the prior art.

The embodiment of the utility model provides an automatic winding device and winding system, relates to cable head connection technical field, the automatic winding device includes base, fixed block, rotatory plate and first rotation drive piece, fixed block is provided on the base, fixed block is provided with a plurality of first through-hole, rotatory plate and fixed block are arranged at interval, and the first rotation drive piece is provided with a plurality of second through-hole. A plurality of first through holes are formed in the base, a plurality of second through holes corresponding to the first through holes in a one-to-one mode are formed in the rotating plate, the first rotating driving piece is arranged on the base and connected with the rotating plate, and one end of each to-be-wound piece penetrates through the corresponding first through hole and the corresponding second through hole and is fixed; and the first rotary driving part drives the rotating plate to rotate so as to wind all the to-be-wound parts. According to the utility model, the first rotary driving piece is adopted to drive the rotating plate to rotate, so that all pieces to be wound are wound, the problem of non-uniform winding tightness in manual operation is avoided, and the connection quality is improved.

The utility model relates to the technical field of flange plates, in particular to a prestressed pipe pile connecting flange plate. According to the technical scheme, the device comprises a connecting pipe, flange plates are fixedly arranged at the two ends of the connecting pipe, and a plurality of through holes are formed in the flange plates; the sealing assemblies are arranged between the flange plates and used for sealing nuts, guide assemblies used for horizontally guiding the sealing assemblies to move are fixedly arranged on the outer walls of the sealing assemblies, and one ends of the guide assemblies are fixedly connected with the connecting pipe. According to the utility model, the installed nut and bolt can be sealed and covered, and moisture, oxygen and other corrosive substances can be effectively prevented from being contacted with the surface of the nut, so that the rusting of the nut is slowed down or avoided, and the reliability and stability of connection are kept.

The invention discloses a temporary steel trestle steel pipe pile inserting and driving guide frame for underwater spanning tower construction and a construction method, and relates to the technical field of steel trestle construction. Most existing guide frames are bailey beam modified frames, have the problems that steel pipe piles need to be lengthened for multiple times, a distribution beam construction platform cannot be provided and the like due to the fact that the existing guide frames are low in rigidity and located on the upper portions of bailey beams, and influence construction quality, efficiency and safety. The guide frame comprises an upper cross beam, vertical rods, a lower cross beam and a fence, and the upper cross beam and the lower cross beam are connected through the vertical rods to form a sunken operation platform; the lower cross beam exceeds the upper cross beam in length, a guide hole is formed in the extending part of the lower cross beam, and the guide frame is used for completing operations such as steel pipe pile positioning, inserting and driving, lengthening, pile top opening and distribution beam installation. Through the design of the sinking type platform, the length of a single-time hoisting pile is increased, the lengthening frequency is reduced, the sinking type platform does not need to additionally erect a platform, multi-procedure continuous operation is achieved, the construction efficiency, quality and safety are remarkably improved, and the construction cost is reduced.