34 results about "Material efficiency" patented technology

The utility model discloses a feed adding device for donkey breeding, which relates to the technical field of feed adding appliances and comprises a base, a support frame is mounted on the top surface of the base, a storage hopper is mounted at the upper end in the support frame, a feed distributing pipe is mounted on the bottom surface of the storage hopper through a flange plate, a discharge port is formed in the bottom surface of the feed distributing pipe, and a feed distributing component is arranged in the feed distributing pipe; through the cooperation of the material distributing roller and the material distributing pipe, rapid and quantitative material adding is facilitated, and the material adding efficiency and the material adding effect are improved; through cooperation of a dredging plate and a push rod, the dredging plate can be conveniently controlled to move up and down, blockage in the storage hopper is avoided, and therefore the discharging efficiency is prevented from being affected; through the cooperation of the storage hopper and the material distribution pipe, the labor consumption is reduced, and the working efficiency is improved; according to the device, the feeding effect and the working efficiency are improved.

The utility model relates to the technical field of plastic crushers, and discloses a low-noise plastic crusher which comprises a box body and a main shaft, a box body upper lug is fixedly connected to the upper portion of the box body, a sixth hexagonal head bolt and a movable cutter are arranged on the outer surface of a movable cutter pressing plate, and the movable cutter pressing plate is fixedly connected with the box body upper lug. A front fixed cutter and a rear fixed cutter are installed on the outer surface of the fixed cutter pressing plate on the front side and the outer surface of the fixed cutter pressing plate on the rear side respectively. The front fixed cutter and the rear fixed cutter are installed in the box body, the front fixed cutter is arranged at the rear and rotates by 30-35 degrees anticlockwise, the initial cutting point is lowered, the material crushing efficiency of the movable cutter is improved, the discharging passing rate of the screen is increased, and when the inner side space of the box body is welded and formed, the inner wall of the box body is pasted with a damping sound insulation board and filled with sound insulation and sound absorption cotton; residual materials in the box body are effectively reduced, continuous crack noise generated by the residual materials in the crushing waiting period is greatly reduced and eliminated, noise of the crushing chamber is also greatly reduced through the sound insulation design, and safe production is facilitated.

The utility model discloses a terminal automatic plug-in machine upper rubber core material moving mechanism which is arranged beside one end portion of a rubber core automatic feeding line body and comprises a material moving support, a material distributing assembly and a material moving assembly, the material moving support is arranged beside the lower portion of the rubber core automatic feeding line body, a material moving sliding way is arranged on the material moving support, the material distributing assembly is arranged between the rubber core feeding line body and the material moving support, and the material moving assembly is arranged on the material moving sliding way. Comprising a first driving device and a material distributing plate which can be driven by the first driving device to horizontally move in the Z direction, a material distributing sliding way is arranged on the material distributing plate, the material moving assembly comprises a material moving plate, a plurality of material moving clamping bases are arranged on the material moving plate, and the material moving plate is in transmission connection with a second driving device and a third driving device and can be driven by the second driving device and the third driving device to horizontally move in the Z direction and the X direction. The transmission mechanism is simple in overall structure, rubber cores on the rubber core automatic feeding line body can be automatically received one by one and conveyed to the material moving slide way, semi-finished products on the material moving slide way can be synchronously moved to the next station in sequence, the material moving efficiency is high, the rubber cores and terminals on the rubber cores cannot be damaged, and the yield is high.

The utility model discloses a paint powder mixer convenient to receive, which comprises a tank body, the lower end of the tank body is fixedly connected with four support legs distributed in a rectangular shape, the upper end of the tank body is fixedly connected with a feed pipe communicated with the inside of the tank body, the upper end of the feed pipe is sleeved with a sealing cover, the sealing cover is in threaded connection with the feed pipe, and the feed pipe is connected with the tank body. The inner bottom of the tank body is conical, the lower end of the tank body is provided with a discharge port communicated with the interior of the tank body, the discharge port is circular, a sealing plug is inserted into the discharge port, the sealing plug is in threaded connection with the discharge port, the lower end of the sealing plug penetrates through the discharge port and is fixedly connected with a connecting disc, and the lower end of the connecting disc is fixedly connected with the tank body. A servo motor is fixedly connected to the position, close to the center, of the upper end of the tank body. Through the arrangement of the movable rod, the spiral blade and other mechanisms, coating powder can be effectively prevented from being blocked at the discharging opening, the discharging smoothness is improved, and it is guaranteed that the material collecting efficiency is not affected.

The invention discloses a layered thermal-electric coupling intelligent sequential repairing system and method for underground water. The core of the system is a multifunctional integrated intelligent injection well, five layers of coaxial micro vacuum heat insulation pipe columns are adopted, and the functions of high-frequency induction precise heating with centimeter-level resolution, high-catalytic-activity composite anode and high-pressure agent injection are integrated. In the repairing process, a central intelligent control unit adaptively drives a three-stage intelligent repairing program through an optimization algorithm according to high-density sensor network data: firstly, ultrafast thermal activation and electromigration enhanced oxidation are performed; secondly, activating microorganisms through precise constant temperature and electrochemical directional oxygen production; finally, microbial enhanced degradation is realized. According to the method, breakthrough improvement of energy and material efficiency, full-closed-loop self-adaptive control of the repairing process and wide applicability to complex pollution scenes are achieved.

The utility model provides a forging die special for a 316H austenitic stainless steel plate, and relates to the field of forging dies. The lower die comprises a lower die body, pushing assemblies and a stress plate assembly are installed in the lower die body through inner grooves, the two pushing assemblies are symmetrically arranged, the pushing assemblies are of long-strip-shaped structures, stress block assemblies are slidably installed outside the pushing assemblies through sliding grooves, and the outer ends of the stress block assemblies with the inner ends of T-shaped structures are of circular structures. The outer end of the stress block assembly is embedded into the guide groove, after the upper die and the connecting plate structure ascend, the stress block assembly is firstly stressed to move in the guide groove, force for preliminarily controlling the pushing assembly to ascend is generated, the pushing assembly is driven to ascend to return materials by means of the ascending force of the upper die, the material returning efficiency is improved, elastic material returning by means of a spring is not needed, and the labor intensity of workers is reduced. The forging and pressing die solves the problem that a common forging and pressing die special for 316H austenitic stainless steel plates usually retreats materials by means of elasticity of a spring when the plates are retreated, and if the plates are clamped, the material retreating effect is limited.

The utility model discloses a blister tray divides material mechanism, applies automatic assembly equipment field, including frame, be provided with blister tray conveying assembly on the frame, the one side of blister tray conveying assembly is provided with divides material positioning assembly, the below of divides material positioning assembly is provided with jacking -up subassembly, jacking -up subassembly and frame fixed connection, the fixed setting of frame below divides material assembly, below divides material assembly between jacking -up subassembly, below divides material assembly away from divides material positioning assembly one end is provided with accurate positioning assembly, accurate positioning assembly and frame fixed connection, through above -mentioned setting, divides material positioning assembly to determine divides material position, and the bottom layer blister tray is divided out, and below divides material assembly removes to the material receiving position and rises, and the blister tray separated out is received, and the blister tray after divides material shifts, realizes the continuous automatic blister tray divides material and positioning operation, guarantees production flow continuous operation, improves divides material efficiency.

The utility model discloses a discharge distributor for a blanking airlock of a dust remover, which relates to the technical field of tobacco machinery and comprises a blanking pipe shaped like a Chinese character'bu ', and the blanking pipe shaped like the Chinese character'bu' comprises a top feed port, a bottom discharge port and a side discharge port. An overturning plate is arranged in the inverted-Y-shaped blanking pipe, in the normal blanking state, the overturning plate is located at the vertical position, and smoke enters the inverted-Y-shaped blanking pipe from the top feeding port and then directly falls into a dust collecting pipe below through the bottom discharging port; when the blanking airlock is blocked and needs to be dredged, the overturning plate is overturned to be in an inclined state to be in contact with the inner wall of the B-shaped blanking pipe, so that smoke dust is prevented from falling into the dust collecting pipe and is guided to flow out from the side discharging port, and manual material receiving is facilitated; according to the utility model, the rapid conversion between the automatic smoke collection state and the manual material receiving state is realized through the turnover plate, so that the labor intensity of manual material receiving is effectively reduced, and the material receiving efficiency is improved.

The utility model belongs to the technical field of test jigs, and particularly relates to an MCU test jig which comprises a base, an operation display panel is assembled at the front end of the base, a supporting frame is installed at the top end of the base, a measuring mechanism is installed at the front end of the supporting frame, and a guide column is installed between the supporting frame and the measuring mechanism. The top end of the base is provided with a working table, the surface of the top of the working table is provided with a placing groove, a measuring piece is placed in the placing groove, the top end of the base is provided with a sleeve, and the top end of the sleeve is connected with a connecting column. It is ensured that the measuring mechanism has enough time to retract, collision risks are reduced, and measuring pieces are protected. Meanwhile, the vacuum adsorption plate is tightly matched with the rotary lifting air cylinder, the measuring piece is stably jacked up, the material taking efficiency is improved, the position of the measuring piece is adjusted through the rotation function, and inconvenience and the error rate caused by wrong placement are reduced.

The utility model discloses a balance testing device, and relates to the technical field of balance testing. The balance testing device comprises a detection assembly and a rotation driving assembly, the detection assembly is provided with a detection position, and the rotation driving assembly comprises a rotation driving part movably arranged in the direction close to or away from the detection position and a first driving module used for driving the rotation driving part to move. According to the balance test device, the driving part on the balance test device can be far away from the detection position when the manipulator performs feeding and discharging actions, so that the driving part is prevented from interfering with the stroke of the manipulator, and the feeding and discharging efficiency of the rotary body is improved.

The invention relates to a multi-sheet material arrangement carrying table suitable for visual detection of a circuit board, which is applied to the technical field of visual detection of the circuit board and comprises a carrying plate, a first material arrangement mechanism, a second material arrangement mechanism and a vacuum adsorption mechanism, the first material arranging mechanism is used for pushing the four pieces of materials on the carrier plate in the second direction and in the reverse direction of the second direction, the second material arranging mechanism is used for pushing the four pieces of materials on the carrier plate in the first direction and in the reverse direction of the first direction, and the first direction is perpendicular to the second direction; the vacuum adsorption mechanism is used for adsorbing materials on the carrier plate; the four pieces of materials are pushed in four fixed directions through the first arranging mechanism and the second arranging mechanism, so that arranging is completed, the materials in each batch are arranged at the same position, arranging of the four pieces of materials is completed at the same time, the arranging efficiency of the materials is improved, and then the production efficiency of products is improved.

The utility model relates to the technical field of breeding equipment, in particular to a feed returning device of a rabbit feeding system, which comprises a feed receiving box, a feed returning auger and a driving mechanism. Residual feed on the feeding belt can be quickly and efficiently fed back to the storage hopper, the feed returning efficiency is greatly improved, feed waste is effectively reduced, manual intervention is remarkably reduced, the efficiency and accuracy of breeding management are improved, a large amount of cost is saved for breeding enterprises, meanwhile, the whole feed returning device is compact in structure, reasonable in layout, simple in part number and convenient to popularize and use, and the cost is reduced. The installation difficulty and the maintenance cost are greatly reduced, and the stability and the reliability of equipment are improved.

The utility model discloses a swinging mechanism, and belongs to the field of material processing equipment. The swinging clamping jaw is used for clamping a material tray; the X-axis moving module is used for driving the swinging clamping jaw to swing in the X-axis direction; the Y-axis moving module is used for driving the swinging clamping jaw to swing in the Y-axis direction; the elastic pressing module is used for pressing the tray cover; the Y-axis moving module is connected with the X-axis moving module, the swing clamping jaw is connected with the Y-axis moving module, and the elastic pressing module is installed on the swing clamping jaw. Compared with the prior art, the material tray swinging mechanism has the advantages that the swinging clamping jaw can be driven to move in the X-axis direction through the X-axis moving module, the swinging clamping jaw can be driven to move in the Y-axis direction through the Y-axis moving module, and therefore the material tray can swing in the X-axis direction and the Y-axis direction at the same time, materials in the material tray can be automatically and evenly swung, and the material tray swinging efficiency is improved. The material placing efficiency can be greatly improved, and the labor cost is reduced.

The utility model discloses a quick reclaiming device for quick release lock production, which comprises a vertical mounting component, a transverse movement guide component is arranged on the vertical mounting component, a moving component is arranged at the moving part of the transverse movement guide component, a transverse movement power component is arranged on the moving component, and a transverse movement power component is arranged on the transverse movement power component. An auxiliary mounting assembly is arranged on the front side of the moving assembly, a lifting guide assembly is arranged on the auxiliary mounting assembly, a lifting assembly is arranged on the moving portion of the lifting guide assembly, a lifting control assembly is arranged on the lifting assembly, and a material taking assembly is arranged on the side, located on the lifting control assembly, of the lifting assembly. Compared with the prior art, the quick material taking device has the advantages that the quick material taking device of the quick-release lock is ingenious in structural design, high in practicability and stable in work and operation, quick material taking and carrying operation of quick-release lock parts is achieved by applying the material taking device, the material taking efficiency of the quick-release lock parts is effectively improved, and the labor intensity of workers is lowered. And the production efficiency of the quick-release lock is also effectively improved.

The application relates to a smelting furnace feeding car hopper in the technical field of smelting furnace feeding cars, which comprises a hopper frame with a rectangular cuboid through opening from top to bottom, a connecting column is arranged on the right side of the hopper frame, a separation sealing plate penetrating to the right side of the hopper frame is slidably arranged in the hopper frame, the separation sealing plate is sealed with the inner wall of the hopper frame, and a pushing member for pushing the separation sealing plate to move is arranged on the hopper frame; a plurality of lower hoppers are arranged between the left and right side walls of the inner cavity of the hopper frame, the frontmost lower hopper is sealed with the front inner wall of the hopper frame; the smelting furnace feeding car hopper is driven by a driving assembly to drive each group of crushing rollers to rotate counterclockwise to crush and discharge materials, improve the uniformity of the discharged material particles, and improve the uniform dispersion effect of the material efficiency, so that the material is prevented from being accumulated and caked during discharging, and the stability of the electric furnace and the smelting effect on the material are ensured.

An octagonal Ultra-High Performance Concrete prestressed pile system for deep foundation applications utilizes an octagonal cross-sectional geometry with 30-inch flat-to-flat external diameter and central void of 26-32 inches diameter optimized for material efficiency and structural performance. The system employs Ultra-High Performance Concrete with compressive strength exceeding 18,000 pounds per square inch and conventional carbon-steel prestressing strands to provide structural capacity equivalent to steel pile systems. The octagonal geometry with central void targets approximately one cubic yard of UHPC per fifty feet of pile length, enabling direct economic comparison with steel alternatives while providing enhanced durability and reduced dead weight by up to 75%. The system includes modular splice connections for extended length capability and addresses multiple market sectors including high-rise buildings, bridges, industrial facilities, and general infrastructure projects. The octagonal configuration with central void provides superior material utilization compared to conventional square and circular pile geometries while maintaining excellent driving characteristics and structural performance.

The utility model relates to an automatic SMT (Surface Mount Technology) tray taking and placing device which comprises a material taking and placing mechanism and two parallel side plates, and the material taking and placing end of the material taking and placing mechanism is positioned between the two side plates; the device further comprises a width adjusting mechanism, and the two side plates are both connected to the width adjusting mechanism. The width adjusting mechanism is used for driving the two side plates to synchronously move in the direction close to or away from each other, or driving one side plate to move in the direction close to or away from the other side plate so as to adjust the width between the two side plates. Different widths can adapt to trays with different thicknesses, and the containing requirement for the trays with different thicknesses is met; the material taking and placing device is wide in application range, high in universality and effectively applied to SMT material disc material taking and placing machining production, and the material taking and placing efficiency is improved.

The application provides an automatic cleaning line for pull rivet nuts, and belongs to the technical field of nut cleaning equipment. The automatic cleaning line comprises a first feeding device and a cleaning device. A feeding structure is arranged on one side of the cleaning device. The first feeding device is used for feeding materials into the feeding structure. An outlet structure is arranged on the other side of the cleaning device. A second feeding device is arranged on the side close to the outlet structure. A plurality of groups of blocking structures arranged along the axis in the rotating cylinder and the staggered blocking rings thereof are matched with the slidable movable plates and the return springs. The over-material gap can be automatically adjusted according to the material accumulation amount, the grading blocking is realized, when a large amount of materials is fed, the materials push away the multiple movable plates in turn, the residence time in the rotating cylinder is significantly prolonged, and it is ensured that all the pull rivet nuts are fully sprayed and cleaned. When a small amount of materials is fed, the materials can pass through the blocking structure quickly through the straight pipe, and the invalid residence is avoided, so that the cleaning fullness and the over-material efficiency are taken into account.

The utility model discloses a material storing and arranging mechanism and a novel material storing and arranging device.The material storing and arranging mechanism comprises a pick-and-place unit, a left-right moving assembly and an up-down moving assembly, the pick-and-place unit is used for clamping or releasing grouped materials, and the up-down moving assembly is used for driving the pick-and-place unit to move up and down; the left-right moving assembly comprises a first left-right moving unit and a second left-right moving unit, the second left-right moving unit is used for driving the taking and placing unit to move left and right relative to the first left-right moving unit, and the first left-right moving unit is used for driving the second left-right moving unit to move left and right. The novel material storing and arranging device comprises a taking and placing unit, a left-right moving assembly, a direction adjusting assembly and an up-down moving assembly, and the direction adjusting assembly is used for driving the taking and placing unit to rotate so as to adjust the material falling direction. The structure is reasonable, occupation of the material arrangement space by the pick-and-place unit is reduced, and the material arrangement efficiency of the pick-and-place unit is improved.

The utility model discloses silk raw material picking and screening equipment which comprises an outer fixing assembly and a picking and screening assembly, the outer fixing assembly comprises an outer fixing box body, two feeding ports, two discharging ports and a material storage cavity, the two feeding ports are formed in the top wall of the outer fixing box body respectively, the two discharging ports are formed in the top wall of the outer fixing box body respectively, and the picking and screening assembly is arranged in the outer fixing box body. The two discharging ports are formed in the outer fixed box body, the material storage cavity is formed in the outer fixed box body, the picking and screening assembly is arranged on the outer fixed box body, and the picking and screening assembly comprises a driving component, a material guiding mechanism, a material screening mechanism, a discharging mechanism, a transmission mechanism and a conveying component. Therefore, the raw materials are screened and filtered by adopting multiple sections of screens with different mesh apertures, the phenomenon of screen leakage is avoided, and meanwhile, the materials are synchronously discharged from the two sides, so that the material screening efficiency is higher.

The utility model relates to the technical field of optical glass production, and discloses an optical glass mould pressing production device which comprises a bottom plate, a base is fixedly connected to the top of the bottom plate, a frame is fixedly connected to the top of the base, a push plate is slidably connected into the frame, and a jacking mechanism is arranged at the bottom of the push plate. A cooling mechanism is arranged on the side wall of the bottom plate, a top frame is fixedly connected to the top of the bottom plate, a hydraulic rod is arranged in the top frame, and a pressing plate is fixedly connected to the output end of the hydraulic rod; the jacking mechanism comprises a fixing frame, the side wall of the fixing frame is fixedly connected to the bottom of the push plate, and a sliding block is slidably connected into the fixing frame. According to the material taking device, after raw materials are formed, a worker pushes the pressing plate to enable the sliding groove plate to deflect in the bottom plate, the guide column is further guided to ascend, then the push plate is pushed to move upwards, finally the formed raw materials are pushed out of the mold, and through cooperation of the structures, the material taking difficulty is lowered, and the material taking efficiency is improved.

The utility model discloses a ring weaving machine for a papermaking felt bottom net, which belongs to the technical field of papermaking felt processing and comprises a bottom plate, a wind-up roller arranged between two side plates, arc-shaped grooves arranged on the side walls of the side plates, a connecting component arranged between a motor and an end shaft rod, a convex plate fixed on one side of the bottom plate, and a sliding groove fixed on the top surface of the convex plate. A base in sliding fit with the sliding groove is fixed to the bottom end of the motor, a locking assembly is arranged between the sliding groove and the base, and a leveling assembly is arranged on one side of the winding roller. According to the take-out device, the motor is separated from the end shaft rods through the connecting assembly and the locking assembly, so that the take-up roller can be directly pushed upwards, the end shaft rods at the two ends of the take-up roller are separated from the arc-shaped grooves, the take-up roller wound with a bottom net is quickly taken out, the take-out convenience of the take-up roller wound with the bottom net is effectively improved, and the take-out efficiency is improved; and the bottom net is rapidly leveled through the leveling assembly, wrinkles on the surface of the bottom net are effectively reduced, and the overall quality of a finished product is improved.

The utility model discloses a kind of full-automatic efficient point material devices for SMT mounting, it is related to SMT point material device technical field, including point material machine, first tray and second tray, the middle part of point material machine is equipped with tray bin, the inside of tray bin is slidably provided with first tray, the side of first tray is fixedly provided with second tray, the lower side of point material machine is provided with the limiting mechanism that keeps first tray and second tray stable movement, the rear side of point material machine is provided with the transmission mechanism that drives first tray and second tray to move.The utility model has double-tray structure, by two trays alternately into point material machine, it can simultaneously carry out the work of point material box material changing, can reduce the time of material changing waste, and further can improve the point material efficiency.

The utility model discloses a horizontal water tank with high stability, applied in water storage equipment technical field, the utility model discloses through the use stability of promotion, adjustable support structure makes equipment can actively adapt to various complex ground conditions, can effectively eliminate the risk of shaking due to uneven ground, ensure that the water tank can keep the horizontal state under the installation environment, both prolong the service life of equipment, also avoided the interface leakage hidden danger caused by inclination, realize bare hand adjustable, greatly reduced the technical threshold of installation and maintenance, three layer buffer layer design can effectively improve dynamic bearing performance, deformation buffer low -frequency impact force, such as water injection impact, carrying shaking, utilize elastic deformation dispersion sustained pressure and reset quickly, three layer covers different vibration frequency, and the shock attenuation efficiency of single material efficiency improves, can restrain the component loosening caused by high -frequency vibration, also can resolve the structural stress brought by low -frequency shaking.

The utility model discloses a bottle cap removes material module, include: support platform, feed assembly and remove material subassembly, through setting first remove material suction disk and second remove material suction disk respectively to first feed groove and second feed groove on bottle cap remove material, to replace manual remove material's mode, can improve remove material efficiency, avoid production progress delay, adopt two remove material suction disk to remove material to two feed grooves simultaneously, can make remove material efficiency multiplication, through setting first remove material suction disk and fixed frame fixed connection, second remove material suction disk and fixed frame sliding connection, then through using second drive cylinder drive second remove material suction disk to first remove material suction disk direction carries out reciprocating type displacement, make the distance between first remove material suction disk and second remove material suction disk can adjust according to the distance between first feed groove and second feed groove and the interval distance of accommodating cavity on material disc, to improve bottle cap remove material subassembly's remove material precision.

The utility model aims to provide the gasket distributing module which is simple in structure, high in positioning precision and high in distributing efficiency, can overcome the stacking problem of gaskets in the distributing process, and can reduce the production cost at the same time. The device comprises a mounting frame, a linear sliding rail and a pushing air cylinder arranged in the horizontal direction are arranged at the upper end of the mounting frame, the linear sliding rail is provided with a distributing sliding block in a sliding mode, the action end of the pushing air cylinder is connected with the end of the distributing sliding block, a profiling groove matched with a product is formed in the top of the distributing sliding block, and the pushing air cylinder is arranged in the profiling groove. A stock bin module is arranged above the linear sliding rail, a vertically-through through hole is formed in the stock bin module, the bottom of the through hole is tightly matched with the top of the distributing sliding block, and the size of the through hole is matched with the size of the profiling groove. The material distribution device is applied to the technical field of material distribution.

This utility model discloses a boiler anti-clogging return material device, which relates to the field of boiler return material and ash discharge technology. Its structure includes a base, with an incinerator fixedly connected to one side of the top of the base. A feeding pipe is fixedly connected to one side of the incinerator, and a feeding funnel is fixedly connected to the top of the feeding pipe. A return material pipe is connected to the top of the other side of the incinerator, and a return material box is fixedly connected to the bottom of the return material pipe. An inclined pipe is fixedly connected between one side of the return material box and the surface of the incinerator. This boiler anti-clogging return material device can prevent the returned material and long-term accumulated ash from clogging the return material box, improving the return material efficiency of the device. Simultaneously, blowing air into the inclined pipe can accelerate the conveying of materials inside the inclined pipe, further improving the return material effect and efficiency of the device.

This utility model discloses a manhole fall protection net, relating to the technical field of manhole fall protection nets, specifically a manhole fall protection net, including a fixing ring, an fall protection net body inside the fixing ring, the fall protection net body having a honeycomb mesh structure, a connecting ring on the outer surface of the fixing ring, a connecting plate on the upper side of the connecting ring, and a limiting cross plate on the side of the connecting plate away from the connecting ring. This manhole fall protection net, through the honeycomb mesh structure of the fall protection net body, achieves maximized material efficiency and strong impact and seismic resistance. Through the coordinated arrangement of the fixing ring, connecting ring, connecting plate, cavity limiting cross plate, reinforcing ribs, connecting ribs, and fixing connecting plate, this manhole fall protection net achieves the effect of increasing the structural strength of the fall protection net while reducing its mass.

The utility model belongs to the technical field of conveying belts, and particularly relates to a speed-adjustable finished product packaging conveying belt which comprises an installation frame, a transmission mechanism and a material blocking mechanism, and the installation frame comprises a first installation plate and a second installation plate. A speed adjusting motor is controlled to drive a conveying belt body to rotate and drive a first rotating rod to rotate at the same time, the first rotating rod rotates to drive an inserting rod to rotate, the inserting rod moves in a transverse groove of a moving plate while rotating, and therefore the moving plate is driven to periodically move front and back, and the moving plate moves to drive a push plate to periodically move front and back; by arranging the conveying belt body, finished product packages can be regularly pushed away from the conveying belt body, the pushing plate can synchronously change the pushing time along with adjustment of the rotating speed of the conveying belt body, and the pushing efficiency is high; and therefore, the finished product packages are prevented from continuously moving along with rotation of the conveying belt body in the material pushing period, and the material pushing convenience of the pushing plate is improved.