66results about How to "Compact and reliable" patented technology

The invention belongs to the field of industrial automatic detection, and particularly relates to a high-precision sensor detection mechanism which comprises a sensor protection shaft, a high-precision distance measuring sensor, a guide shaft sleeve and a transition block. The sensor protection shaft is of a hollow shaft-shaped structure; the high-precision distance measuring sensor is fixedly arranged in an inner cavity of the sensor protection shaft in the axial direction, and a measuring head of the high-precision distance measuring sensor faces the lower end of the sensor protection shaft. The guide shaft sleeve is coaxially arranged at the lower part of the inner cavity of the sensor protection shaft, and the lower end surface of the guide shaft sleeve is flush with or basically flush with the lower end surface of the sensor protection shaft; the transition block is sleeved in the guide shaft sleeve in an axial sliding manner, the lower end face of the transition block extends out of the guide shaft sleeve and the lower end face of the sensor protection shaft, and a preset gap is formed between the upper end face of the transition block and the measuring head. The slidable transition block is used for replacing a sensor measuring head to directly contact with a measured surface, so that pollutants such as oil stain and dust are effectively isolated, and the measuring head is kept clean and the measuring precision is kept.

The utility model discloses an axial flow heat radiation servo motor, comprising a casing provided with a cover, the cover is provided with a plurality of air holes, and the casing is rotatably connected with a rotating shaft; the stator assembly is in a circular ring shape and is connected into the machine shell. The rotor assembly is connected to the rotating shaft, the stator assembly surrounds the rotor assembly, and an annular air gap is formed between the rotor assembly and the stator assembly; and the cooling fan comprises an end seat and a plurality of fan blades, the end seat is in a circular ring shape, the end seat is connected to the end part of the rotor assembly, all the fan blades are distributed along the circumferential surface of the end seat, the fan blades are overlapped with the air gaps, the fan blades are overlapped with the air holes, the fan blades are bent towards the extension direction of the rotating shaft, and the fan blades are in central symmetry about the rotating surface of the end seat. The heat dissipation device is compact and reliable in structure, heat dissipation cost can be effectively saved, pertinence of fan blade operation heat dissipation is high, the energy utilization rate is high, heat dissipation efficiency is high, operation stability is high, and stable heat dissipation under the bi-directional rotation working condition can be guaranteed.

This invention relates to the field of tapping equipment technology, specifically a multi-axis synchronous tapping device for clutch stamping parts. It includes a tooling base on which an assembly is mounted. By installing a distance adjustment component on the upper mounting base and slidably connecting a third tapping gear to this component, the radial position of the third tapping gear and the tap can be flexibly adjusted, thereby changing the tapping distribution circle diameter. This allows the device to quickly adapt to clutch stamping parts with different hole specifications, significantly reducing changeover costs. Simultaneously, it employs a full gear transmission layout where one first tapping gear simultaneously meshes with multiple second tapping gears, and each second tapping gear then meshes with a third tapping gear. The transmission chain is short and all parts are rigidly synchronized, completely eliminating vibration problems caused by unequal speeds and expansion / contraction clearances in universal joint transmissions, effectively ensuring the machining accuracy of the threads.

The utility model relates to laser cutting equipment technical field, concretely relates to a synchronous telescopic load platform. The utility model provides a synchronous telescopic load platform, including base, the slide rail mechanism of setting in the both sides of base and with the support mechanism of slide rail mechanism connection, the slide rail mechanism includes the horizontal setting guide rail, the fixed slide block of being fixed in the one end of guide rail and with the mobile slide block of guide rail sliding connection, the bottom of fixed slide block and mobile slide block passes through telescopic connecting rod and constitutes articulated structure, the support plate that the support mechanism includes the support strip of being located fixed slide block and mobile slide block on and being fixed on support strip. This load platform passes through the support structure design of synchronous telescopic, solves the problem that the spacing of traditional load platform support plate is not adjustable, the replacement of replacement tooling is complicated and the waste material is difficult to discharge, improves the processing flexibility and efficiency of laser cutting equipment.

The application belongs to the technical field of intelligent service robots, and relates to a home maintenance robot with omni-directional movement and electromechanical cooperative posture control, which comprises an omni-directional chassis, a multi-degree-of-freedom mechanical arm module, a capsule type modular intelligent material supply cabin, an environment sensing and interaction head module, a sensor group and a main controller. The chassis is driven by Mecanum wheels and motors; the material supply cabin comprises an annular cabin body assembly, a plurality of capsule cabins, a central feeding channel, a lifting feeding platform, a platform lifting driving mechanism, a cabin door opening mechanism, a discharging channel and a magnetic guide mechanism. The device can realize standardized classified storage of small standard parts, automatic cabin selection, single capsule release, central receiving and magnetic discharging, thereby reducing the risk of standard part scattering, mixing and jamming; effectively improving the passability of the robot in unstructured terrains such as carpets, doorsteps and slopes, avoiding the imbalance of the center of gravity when the mechanical arm extends for operation, and being compact in structure and suitable for daily maintenance of household items in single-family homes.

A height adjustment device for a car seat comprises an outer cover shell, a mounting plate, a locking assembly, a toggle plate, a toggle assembly, a transmission plate and a central shaft, and has the following features: the toggle assembly comprises a driving outer plate and a driving inner plate, the driving outer plate is fixedly connected to the transmission plate and has a driving outer plate clamping cavity in the middle, a driving inner plate spline hole is provided at the center of the driving inner plate, a toggle plate is arranged between the driving outer plate and the linkage plate, the toggle plate is fixed to the driving outer plate, the driving inner plate is arranged on the toggle plate, a toggle plate center hole is provided in the middle of the toggle plate, a rubber block is arranged at the corner of the driving outer plate clamping cavity, driving rollers are arranged on both sides of the rubber block, a toggle block is arranged on one side surface of the toggle plate, a toggle plate reset block is arranged on the outer peripheral side surface of the toggle plate, a transmission plate convex block is provided on the outer peripheral side surface of the transmission plate, a locking disc spring is arranged on the outer peripheral side surface of the driving outer plate, and a reset disc spring is arranged on the outer peripheral side surface of the toggle plate. The structure is compact and simple, the transmission reliability is strong, the service life is long, looseness between components is prevented, and the processing cost is low.

The utility model discloses a viscous damper installation device which comprises a viscous damper body, one end of a guide rod of the viscous damper body is fixedly connected with a fixed installation assembly used for a fixed side, and one end of a cylinder barrel of the viscous damper body is fixedly connected with an adjusting installation assembly used for a movable side. The adjusting and installing assembly comprises a spline shaft fixedly connected with one side of a cylinder body of the viscous damper body, the surface of the spline shaft is movably sleeved with a spline sleeve, and one side of the surface of the spline sleeve is fixedly connected with an edge plate. According to the viscous damper mounting device, by means of the arrangement of the adjusting mounting assembly, when a viscous damper body is mounted, a controllable plate can be directly rotated according to direct mounting conditions, and during actual mounting, a fixed wall and a fixed plate are not necessarily located on the same horizontal plane, so that the controllable plate can be rotated; and direct rotation of the controllable plate possibly causes displacement deviation of the viscous damper body.

This utility model relates to the field of cable tray technology, specifically to a lightweight cable tray support using a molding process. It includes a base box with a top cover slidably mounted on one side and several mounting brackets symmetrically mounted on both sides. A limiting component is installed inside the base box to accommodate cable trays of different sizes. A drive component is installed on one side of the base box to drive the limiting component. Compared to existing technologies, this application uses a molding process for one-piece molding, resulting in a lighter and stronger structure. Combined with the adjustable limiting component and drive mechanism, it can adapt to the installation requirements of cable trays of different sizes, achieving efficient and stable limiting and clamping, improving installation flexibility, structural stability, and construction efficiency, reducing overall costs, and possessing greater versatility and practicality.

The invention discloses an air magnetic spring with a cooling function, and belongs to the technical field of elastic elements. The device comprises an upper cover plate, a lower base and a main rubber air bag, and is characterized in that an upper auxiliary rubber air bag, a lower auxiliary rubber air bag, an upper magnetic ring and a lower magnetic ring are additionally arranged, the auxiliary rubber air bag is fixed to the center of the upper cover plate and the lower cover plate and located in the main air bag. The magnetic rings are embedded in the cover plates and pressed by the auxiliary air bag. And communicated cooling water channels are arranged in the upper cover plate, the lower cover plate and the auxiliary air bag. When the main air bag loses efficacy, the auxiliary air bag provides emergency buffering, and double failure protection is achieved in combination with repulsive force of the magnetic ring; under extreme impact, the repulsive force of the magnetic ring can enhance the breakdown resistance; the cooling water channel can effectively reduce the working temperature of the spring and delay rubber aging. The spring integrates the functions of failure protection, strong impact resistance and active cooling, and the reliability and environmental adaptability are remarkably improved.

The utility model relates to the technical field of carrier tape forming, in particular to a waste material guiding waste material wheel assembly for carrier tape production, which comprises a supporting block and a fixing disc, the surface of the supporting block is provided with a supporting disc, the surface of the supporting disc is fixedly connected with a connecting column, and the connecting column penetrates through the surface of the supporting block. The outer surface of the connecting column is sleeved with a connecting plate, and the surface of the supporting block is movably connected with a first guide wheel. Acting force is applied to the waste material wheel through the torsion spring, when waste materials pass through the waste material wheel, due to the fact that the sizes of the waste materials of different product models are different, the self-adaptive adjustment effect can be achieved through the force applied by the torsion spring, and compared with the prior art that the torsion spring is not additionally arranged, the tightness between the wheels depends on manual adjustment and is loose and tight sometimes; and the changed structure is compact and reliable and does not need to be frequently adjusted by personnel, and the situation of production scrapping caused by waste materials is effectively reduced.

The utility model provides a kind of heating type commercial vehicle urea pressure sensor, including shell, outer cover, detection core, internal support and circuit board, the detection diaphragm of detection core bottom is sealed communication with urea delivery pipe bottom of shell, and urea delivery pipe is provided with electric heating coil along its length direction;Circuit board is set in the detection core top by internal support, and with detection core and circuit board electric connection.The utility model passes through integrated electric heating coil and outside internal temperature control switch, environmental temperature control switch, effectively solve the crystallization problem of commercial vehicle urea pressure sensor under low temperature environment;And its structure design is compact and reliable, easy to produce and maintain, applicable to various commercial vehicle type, with higher market application value.

The utility model belongs to the technical field of intelligent storage, and particularly relates to a single-source-driven automatic ignition intelligent ashtray which comprises a shell, a cover body, an ignition mechanism and a driving mechanism. The cover body is rotationally connected to the shell; the ignition mechanism is arranged on the cover body; the driving mechanism is arranged on the shell and is used for driving the cover body to rotate and move; wherein the ignition mechanism rotates and moves along a preset path along with the cover body in the moving process of the cover body. The igniter and the cover body are designed to be of a synchronous moving structure, the mechanical layout of a traditional intelligent ashtray is effectively simplified, a complex driving assembly needed by independent lifting of the igniter is abandoned, and the operation stability of equipment is remarkably improved.

The invention discloses an energy-saving gilding roller mechanism and a working method thereof.The energy-saving gilding roller mechanism comprises a gilding roller body, an electric heating rod, a sealing plug, a rotary connector and a spacing assembly, the electric heating rod is coaxially plugged into a middle cavity of the gilding roller body, and the root of the electric heating rod is sealed through the sealing plug; the extending end of the electric heating rod is connected with a power supply through the rotary joint; the spacing assembly is coaxially arranged in the middle cavity and arranged on the periphery of the electric heating rod in a sleeving mode, and the spacing assembly divides the middle cavity into an inner oil cavity and an outer oil cavity. The spacing assembly can communicate with the inner oil cavity and the outer oil cavity in the working state and can isolate the inner oil cavity from the outer oil cavity in the shutdown state. The oil cavity is divided into the inner oil cavity and the outer oil cavity, the inner oil cavity is subjected to isolation and heat preservation during power failure, heat loss is reduced, and the heat energy utilization rate is increased.

This invention relates to the field of mooncake processing and conveying technology, and particularly to a circular conveying device for mooncake filling with smooth feeding. The device includes a placement platform and a base fixed to the bottom of the placement platform. A rotating disk is rotatably mounted on the upper end of the placement platform, and a placement surface is provided inside the rotating disk. An extrusion block is fixed to the outer wall of the rotating disk. A motor is fixed to the bottom of the motor, and the output end of the motor is fixed to the bottom of the rotating disk. A connecting frame is fixed to the upper end of the placement platform, and an extrusion assembly is provided on the upper end of the connecting frame. This invention provides a circular conveying device for mooncake filling with smooth feeding. Through the coordination of a compression mechanism and an automatic detection mechanism, it achieves intelligent compaction of the filling as needed, ensuring both the elimination of porosity and avoiding over-processing. This significantly improves the smoothness of feeding and the consistency of product quality. Furthermore, it has a simple structure and low cost, making it highly valuable for practical application.

The utility model relates to the technical field of push-pull head button switching structures, in particular to a push-pull head button switching structure which comprises a body, a button, a nest-shaped elastic piece, a pressing plate, a support, a reset piece and a center bolt. The middle of the button is rotationally connected with the body, the pressing part drives the center bolt through the support to achieve waterway switching, the nest-shaped elastic piece is installed in the stepped groove, and when pressed, the nest-shaped elastic piece deforms to make Click sound and provide buffering hand feeling. Clear operation feedback sound can be provided for a user, the pressing hand feeling is improved, meanwhile, the stability and reliability of waterway switching are ensured, and the user experience is improved.

The invention relates to the technical field of fuel element reactor irradiation tests, and provides a fuel element transient irradiation device which comprises a heat insulation pipe, a pressure pipe and a shunt pipe which are coaxially connected from outside to inside, the heat insulation pipe is communicated with a gas inlet pipe and a gas outlet pipe, the pressure pipe is communicated with a liquid inlet pipe, and the shunt pipe comprises an outer pipe and an inner pipe. The top of the inner pipe is communicated with a liquid outlet pipe, the lower portion of the inner pipe is communicated with a fuel element, a neutron absorption screen surrounds the fuel element, two end ports of the neutron absorption screen penetrate out of the side wall of the pressure pipe, a thermocouple is arranged between the outer pipe and the inner pipe, the measuring end of the thermocouple is arranged around the fuel element through a lead pipe, and the lead end of the thermocouple penetrates out of the shunt pipe. Through the multi-layer sleeve structure composed of the heat insulation pipe, the pressure pipe and the shunt pipe and the reasonable layout of the gas inlet pipe, the gas outlet pipe, the liquid inlet pipe, the liquid outlet pipe and the neutron absorption screen, the transient irradiation test requirement of the fuel element is met, the complexity of the structure is reduced, and the integration level of the structure is improved.

This utility model discloses a food coating device, comprising: a coating assembly including a coating frame, a coating motor, a base plate, a coating tray, and an elastic element; the base plate has an internal gear ring, the output end of the coating motor has a central gear, the coating frame is rotatably connected to a transmission gear, the two sides of the transmission gear are respectively meshed with the internal gear ring and the central gear, the coating tray is connected to the base plate through the elastic element, and the top of the central gear has a cam coaxially arranged, the motion trajectory of the cam intersecting the motion trajectory of the vibrating pin; and a discharge assembly including a discharge frame, a discharge motor, a main synchronous wheel, a driven synchronous wheel, and a screen conveyor belt; the main synchronous wheel and the driven synchronous wheel are both rotatably connected to the discharge frame, the driven synchronous wheel is located in the coating tray, and the main synchronous wheel is connected to the discharge motor and located outside the coating tray. This utility model's composite motion allows the food to be tossed and tumbled slightly in the powder, resulting in high coating uniformity and a high coating qualification rate, ensuring the integrity of the food.

The utility model discloses a kind of electric / escalator BA interface devices, it is related to elevator technical field, including upper shell and lower shell, the surface of the upper shell is equipped with multiple square round grooves, the upper end of the lower shell is installed with multiple light guide columns, multiple the light guide column is fixedly connected with multiple square round grooves, the lower end of the upper shell is symmetrically installed with multiple female buckles on left and right sides, the upper end of the lower shell is symmetrically installed with multiple male buckles on left and right sides, multiple the female buckle and male buckle are used mutually in cooperation.The utility model is provided with a series of structures, and the overall structure is more compact and reliable, effectively solve the problem that conventional BA interface assembly is complex, inconvenient to maintain, and has practicality and high efficiency.

The application discloses a kind of fish automatic continuous processing equipment, the equipment includes rack and box body being set on rack, and the inlet and outlet are respectively set in opposite sides of box body, along fish body conveying direction, box body inside is sequentially provided with self-adapting clamping and conveying unit, cutting unit, auxiliary conveying unit, fish body unfolding unit, scale removing unit and internal organs removing unit.Self-adapting clamping and conveying unit and auxiliary conveying unit are equipped with elastic pressing mechanism, and can adapt to different specifications fish body;Cutting unit is equipped with disc saw blade and roller, provides conveying force while cutting;Fish body unfolding unit is unfolded by cooperating with the pressure cone structure through the class triangular guide platform and the fish body is cut;Scale removing unit is equipped with different scraping scale teeth to realize grading scale removing;Internal organs removing unit is scraped into the cavity of bearing platform by scraping roller brush.The application realizes the integration of fish from clamping and conveying to cutting, unfolding, scale removing and internal organs removing, and has high processing efficiency.

This invention provides a wind turbine blade de-icing device, including a drone, and further comprising: a liquid storage tank fixed to the drone's frame for storing liquid de-icing agent; a piston plate for squeezing the liquid de-icing agent is slidably sealed within the storage tank; the piston plate has a through hole; a conveying assembly for communicating with the through hole and being fixedly connected to the piston plate; and a contact spraying and breaking assembly fixed to and communicating with the conveying assembly for piercing the ice layer surface and spraying liquid de-icing agent upon contact with the ice layer on the wind turbine blades. This invention integrates the liquid storage tank, piston plate, conveying assembly, and contact spraying and breaking assembly onto the drone, utilizing the sliding and squeezing action of the piston plate within the storage tank to actively deliver the liquid de-icing agent. This eliminates the need for ground pump stations and long-distance hoses, fundamentally solving the problem of insufficient drone payload and difficult operation caused by excessively heavy pipelines in traditional spraying methods.

The invention discloses a damping-adjustable damping base of a cultural relic cabinet and a working method of the damping-adjustable damping base. The damping-adjustable damping base of the cultural relic cabinet comprises a bottom plate, a middle plate, a top plate, a lower track plate, an upper track plate, roller assemblies and damping blocks. The bottom plate, the middle plate and the top plate are stacked together from bottom to top, the two lower track plates are horizontally and symmetrically arranged at the left end and the right end of the top face of the bottom plate, and the four roller assemblies are installed on the bottom face of the middle plate and slide front and back along the lower track plates in a guiding mode. The two upper track plates are horizontally and symmetrically arranged at the front and rear ends of the bottom surface of the top plate; the other four groups of roller assemblies are mounted on the top surface of the middle plate and slide left and right along the upper track plates; the damping block is installed at one end of the roller assembly and can adjust damping. Mounting threaded holes for mounting the cultural relic cabinet are formed in the top surface of the top plate. According to the damping-adjustable damping base of the cultural relic cabinet, a three-plate stacking type horizontal shock isolation mechanism is adopted, and damage of an earthquake to the cultural relic cabinet can be effectively reduced.

The utility model discloses a vortex pump relates to brushless direct current water pump and its spare parts technical field, and it at least includes impeller component, and the impeller component includes the disc body of thickness t, and the disc body's outer edge position department is equipped with several blades along the circumferential direction, and the vortex pump is configured impeller chamber in, and the impeller component is suitable for rotating in the impeller chamber, and the two sides of impeller chamber have the axial clearance of impeller of height h between the inner wall along the horizontal direction configuration, and wherein, 0.03mm < (h-t) < 0.07mm. The utility model mainly solves how to provide the problem of reasonable impeller safety clearance structure for vortex pump, and the utility model is limited to the relationship of impeller axial clearance and impeller component thickness, replaces the limitation of safety clearance in the prior art, can accurately control the clearance between impeller component and impeller chamber, avoids the performance of vortex pump to be influenced by factors such as part size tolerance, assembly cumulative tolerance.

The utility model provides a microminiature die insert high-pressure point cooling structure, which relates to the technical field of cooling of die inserts and comprises an insert body, a slider seat is mounted at the rear end of the insert body, a heat conduction layer covers the outer surface of the insert body, a cooling water pipe is mounted on the upper portion in the insert body, and the slider seat is mounted on the cooling water pipe. The rear portion of the cooling water pipe extends into the upper side of the front portion of the sliding block base, a second upper connecting water pipe and a third lower connecting water pipe are installed on the upper side and the lower side of the rear portion in the sliding block base correspondingly, low-pressure outlets are formed in the rear end of the second upper connecting water pipe and the rear end of the third lower connecting water pipe correspondingly, and the rear portions of the low-pressure outlets are connected with adjustable flow dividing valves; the heat conduction layer covering the outer surface of the insert body is of a nano ceramic heat conduction layer structure, and the outer surface of the insert body is smooth. The water pipe penetrates into the forming part, and is combined with the high-heat-conduction coating, so that the heat exchange efficiency is improved, the structure is compact and reliable, the micro insert is matched, the maintenance is convenient, and the heat exchanger is more efficient and practical.

The grooving and edge opening device for the steel core gate leaf plate comprises a grooving box, a pressure feeding structure, an adjustable grooving structure and a dust removal structure are arranged on the grooving box, a supporting frame is arranged at the bottom of the pressure feeding structure, and an edge opening matching structure is arranged on the supporting frame. By the adoption of the structure, grooving dust falling is achieved, grooving chippings are prevented from drifting away, pollution to the air environment is small, and the body health of operators is prevented from being affected; after slotting, automatic gluing and welting are achieved, two-way positioning and guiding are matched, wall attaching is tight and accurate, and compaction is firm; the device is reasonable in overall structure, high in automation degree, convenient to operate and use flexibly and high in practicability.

The utility model discloses a frame and vehicle, frame includes: stringer, stringer includes first stringer and second stringer, crossbeam, battery mounting support, battery mounting support extends in left and right directions, and battery mounting support is connected between first stringer and second stringer and forms battery mounting groove, and battery mounting groove is suitable for installing battery, and battery mounting support and crossbeam are spaced in front and back directions. Therefore, by connecting battery mounting support between first stringer and second stringer and forming battery mounting groove for installing battery, the space for setting central motor and transmission shaft in the existing vehicle can be used to form battery mounting groove, so that not only the sufficient setting space of battery can be ensured, the total capacity of the battery that can be carried by the vehicle is increased, the endurance of the vehicle is improved, the space utilization and the compactness of the structure of the vehicle can also be improved, in addition, the wheel base of the vehicle can also be reduced, and the maneuverability of the vehicle is improved.

This invention provides a purification device for purified water, comprising a pretreatment sedimentation tank, a multi-media filter, an activated carbon filter, and a reverse osmosis device arranged sequentially. The pretreatment sedimentation tank is provided with a lower inlet and an upper outlet. A water treatment device is also provided inside the pretreatment sedimentation tank. The water treatment device includes a filter element and a backwashing mechanism. A gear pump pumps the filtered water in the outlet area through a delivery pipe to a strip box. The water flow sprays out from the opening on the lower side of the strip box and acts on the surface of the filter element. Simultaneously, the strip box rotates radially on a central column, performing a full-area, uniform backwashing of the filter element, flushing the attached impurities back to the inlet area, eliminating the need for an external flushing water source.

The application discloses a motor assembly for a clothes dryer, comprising a rack, a double-shaft motor, a transmission mechanism, a retreat-stop mechanism, a ratchet switching mechanism, a multi-stage speed regulation mechanism and an output wheel. The first output end of the double-shaft motor is directly connected with a fan, and the second output end is connected with a driving wheel, a driven wheel and a conveying belt to form a first-stage speed reduction. The retreat-stop mechanism locks the driven wheel when the motor reverses, so that the conveying belt slips. The ratchet switching mechanism comprises a first ratchet component, a second ratchet component and a sleeve component. The slipping during the motor reversal drives a swing lever, and the sleeve is reversely rotated through the cooperation of ratchet teeth. The fixed and movable rotating ratchets of the second ratchet component are connected through spiral ladder clamping claws, so that rotation is converted into axial transition. The multi-stage speed regulation mechanism pushes a planetary gear carrier through a movable rotating ratchet, so that different levels of planetary gears are engaged with corresponding gear rings, multi-stage speed regulation is realized, and finally the output wheel is driven to rotate at variable speed. The application realizes automatic switching and multi-stage speed regulation through motor reversal, and improves the performance and energy efficiency of the clothes dryer.

The invention discloses a reaction force device for a starting shaft of a shield machine in a limited space, comprising a rear row of piles vertically arranged at the pit wall behind the starting shaft foundation pit. A plurality of vertical channel steels are arranged on the side of the rear row of piles close to the shield machine, and the vertical channel steels are evenly arranged along the arrangement direction of the rear row of piles. The bottom of the vertical channel steel is inserted into the bottom of the foundation pit and fixedly connected with the rear row of piles. A plurality of waist beam channel steels are horizontally arranged on the side of the vertical channel steel close to the shield machine, and the waist beam channel steels are evenly arranged in the vertical direction and fixedly connected with the vertical channel steel. An I-beam rail for supporting the shield machine parallel to the excavation direction of the shield machine is provided at the bottom of the foundation pit, and a rubber shock-absorbing plate is provided between one end of the I-beam rail close to the vertical channel steel and the vertical channel steel. By using the invention, the reaction force device can be arranged only on a starting shaft foundation pit of a relatively small area, which can solve the technical problem that a large excavation area is required in the prior art for arranging the reaction force device for the starting shaft, which has a serious impact on urban operations.

The utility model discloses a PET (Polyethylene Terephthalate) belt bundling machine core with a compact structure, which belongs to the technical field of packaging machinery and comprises a rack assembly, a tightening mechanism, a material belt feeding track, a high pull wheel assembly, a belt feeding wheel assembly, a cam driving device, a cam transmission assembly, an in-place detection mechanism and a friction servo motor, the lacing mechanism is rotationally connected with the rack assembly, the material belt feeding rail penetrates through the lacing mechanism and is located at the top of the high pull wheel assembly, the belt conveying wheel assembly is located below the high pull wheel assembly, the cam driving device is located on the right side of the rack assembly and connected with the rack assembly, and the cam transmission assembly is located in the rack assembly. The cam transmission assembly is connected with the cam driving device, and the in-place detection mechanism is connected with the rack assembly. The automatic binding machine is compact in structure, a plurality of key actions such as pressing, tightening, cutting and welding are accurately coordinated by taking a cam system as a guide, and the automation degree, the stability and the binding quality of binding operation are improved.

The utility model discloses a rotary lifting device capable of being used for a conveying line, which comprises a support frame, a lifting component fixedly connected to the support frame, a rotary component fixedly connected to the lifting component, and the rotary component moves in the vertical direction through the lifting component; the rotating assembly comprises a bottom plate fixedly connected to the lifting assembly, a rotating air cylinder fixedly connected to the lower surface of the bottom plate, a rotating bearing fixedly connected to the upper surface of the bottom plate, a conveying line supporting plate fixedly connected to the rotating bearing and a conveying line fixedly connected to the conveying line supporting plate. Two buffer fixing blocks which are oppositely arranged are fixedly connected to the bottom plate, a check block is fixedly connected to the lower surface of the conveying line supporting plate, and the check block is located between the two buffer fixing blocks. According to the lifting and rotating transplanting device, the whole lifting and rotating transplanting device has the double functions of lifting and rotating transplanting, the structure is compact and reliable, and the cost is low.