61results about How to "Reliable and durable structure" patented technology

The invention discloses a classification full-automatic pick-and-place grinding device for optical lenses. The classification full-automatic pick-and-place grinding device for the optical lenses comprises a machine table, a primary grinding unit, a secondary grinding unit and a pick-and-place conveying manipulator, wherein the machine table comprises a lens placement station used for placing to-be-ground optical lenses; the primary grinding unit is arranged on the machine table and used for performing rough grinding or / and fine grinding on the front sides or the reverse sides of the optical lenses; the secondary grinding unit is arranged on the machine table and used for performing rough grinding or / and fine grinding on the front sides or the reverse sides of the optical lenses; and the pick-and-place conveying manipulator is used for picking up the optical lenses from the lens placement station and conveying the optical lenses onto the primary grinding unit or the secondary grinding unit for grinding or simultaneously conveying the optical lenses onto the primary grinding unit and the secondary grinding unit for grinding. According to the technical scheme, the classification full-automatic pick-and-place grinding device for the optical lenses has the characteristics that the technical problems that rough grinding, fine grinding and front-reverse grinding of the optical lenses cannot be performed on the same equipment, the automation degree is low, and the production efficiency is low in the optical lens grinding field are solved.

The invention relates to a chain lathedog and a concrete pumping system. The chain lathedog comprises a first lathedog, a second lathedog and connecting rods, wherein the first end of the first lathedog and the first end of the second lathedog are fixedly connected by bolts and nuts, the second ends of the first lathedog and the second lathedog are respectively articulated with both ends of the connecting rods, and the first lathedog and the second lathedog can rotate to a closed state or unfolded state, corresponding to the connecting rods. According to the chain lathedog disclosed by the invention, one ends of the two lathedogs are articulated with the connecting rods, and the first lathedog and the second lathedog can rotate to a certain angle corresponding to the connecting rods, so that the chain lathedog is conveniently unfolded and closed and is enabled to be jointed with the fitting surface of a flange to be clamped as much as possible; the connecting rods play the role of tightening reliably and assist the two lathedogs in positioning when the two lathedogs close, and convenience is brought in mounting the bolts and the nuts; and the bolts and the nuts only need to be mounted at one ends of the two lathedogs, so that the number of the needed bolts and nuts is less, and more convenience is brought in the disassembly and the assembly.

The invention provides an environment-friendly water permeable brick as well as a compression forming mould and a preparation method for preparing the environment-friendly water permeable brick. The water permeable brick is formed by a water permeable brick surface layer and a water permeable brick base layer, wherein materials of the surface layer mainly comprise sand with the particle size being 10 to 20 mesh and cement; materials of the base layer mainly comprise large gravel with the particle size being 3 to 8mm and cement. The method specifically the steps of adding the materials into two stirring machines respectively, adding other materials of corresponding formulas for evenly stirring, then compressing by a brick compression forming machine, distributing the base layer materials twice and the surface layer materials once in a lower mould hollow part of the compression forming mould, performing shaking compression for 2 to 3s after each time of material distribution, thus preparing a formed green brick, and then performing curing to form the water permeable brick. A dry-press forming process is adopted to prepare the water permeable brick, so that the production cost and the energy consumption are reduced; the prepared water permeable brick has good water permeability, abrasion performance, skid resistance and crushing resistance.

The invention relates to the field of paper making and particularly provides an efficient waste paper pulverizing device. The pulverizing device comprises a horizontally arranged support frame, wherein a pulverizing box is arranged at the top of the support frame, a paper feeding box is arranged at the top of the pulverizing box, a partition board is horizontally arranged at the connecting part ofthe pulverizing box and the paper feeding box, a feeding opening is arranged in the top of the paper feeding box, and a conveyer belt for conveying waste paper is correspondingly arranged at the position of the feeding opening; and a material guide frame is arranged on the bottom partition board of the paper feeding box below the feeding opening, and a through hole is correspondingly arranged inthe partition board at the bottom outer side of the material guide frame. The structural design is reasonable, the waste paper can be rapidly swallowed after being filled, the pulverizing efficiency is high, and the part of the pulverized waste paper of which the size is unqualified can be effectively secondarily or repeatedly pulverized, so that high waste paper pulverizing rate is ensured. At the same time, fly dust in the pulverizing process of the waste paper can be effectively inhibited, a great working environment is ensured, the structure is reliable and durable, manual operation and maintenance are facilitated, the practicability is high, and actual use conditions are met.

A nail clipper includes a clipper body with a pair of jaws, an operating lever configured to move the jaws to cut nails, a hook member mounted to the clipper body, the hook member including a vertical groove portion extending vertically downwardly from an upper surface of the hook member, and first and second lateral groove portions extending in lateral direction from the vertical groove. The operating lever includes a front tip portion of generally bar or shaft shape, which is configured to be inserted through the vertical groove portion of the hook member and to couple with a selected one of the first and second lateral groove portions of the hook member to set a desired gap size of the matching jaw portions of the clipper body.

The invention discloses a single-screw multi-control type cutter frame structure of a dividing and cutting machine. The single-screw multi-control type cutter frame structure comprises a frame which is provided with a rotatable screw; the screw is connected with a driving motor; a beam which is parallel to the screw is fixed on the frame; a cylinder is fixed at a position of each end of the beam, wherein the position is close to the frame; a sliding rail is fixed on the beam; a cutter frame which can move along the sliding rail sleeves the sliding rail in an insertion mode; a circular hole is formed in the cutter frame, wherein the axis of the circular hole and the axis of the screw are overlapped; a nut which sleeves the screw in an insertion mode is arranged in the circular hole; a bearing is arranged between the screw and the inner wall of the circular hole; the cutter frame is also provided with a compression structure which is located below a cylinder push rod; the nut is compressed by or separated from the compression structure through the cylinders. According to the single-screw multi-control type cutter frame structure of the dividing and cutting machine, the cylinders and the compression structure are added and accordingly a plurality of cutter frame structures can be controlled by one motor and accordingly the equipment cost is greatly saved and the energy consumption of the equipment operation is reduced and the accuracy is high in the process of working of the equipment.

The invention discloses a prefabricated vertical and horizontal drainage guide system for a garbage landfill and a construction method of the prefabricated vertical and horizontal drainage guide system. The prefabricated vertical and horizontal drainage system for the garbage landfill comprises a liner structure, a reservoir body drainage guide structure and a vertical and horizontal drainage guide system. The liner structure comprises a compacted clay bottom layer, a geomembrane, a compacted clay surface layer and a UHPC sprayed impervious layer. The reservoir body drainage guide structure comprises a UHPC collecting well, a steel grating manhole cover, a circular pipe opening, a reservoir body geotechnical composite drainage network, a reservoir body cleaning gravel layer and a clay sealing layer. The vertical and horizontal drainage guide system comprises a UHPC core drainage pipe, UHPC longitudinal drainage pipes, UHPC transverse drainage pipes, a submersible sewage pump, a liftingrope and a drainage hose. By means of prefabricated construction, the system has short construction period and reliable and durable structure, can control the main level of leachate for a long time,and has the advantages of good drainage effect, long life cycle and low maintenance cost.

The invention discloses a high-efficient combined rainwater collection module and embedment construction method for the same. The high-efficient combined rainwater collection module comprises mesh-type long plates and insertion plates, wherein the long plates are spliced to form a square structured unit; a plurality of insertion plates are fixed in the square structured unit and form square structured units with the four long plates; each square structure units are connected via buckles. The rainwater collection module embedment construction method is further disclosed. The rainwater collection module is high-efficient and quick, simply structured and conveniently installed, has strong die universality, firm and durable structure as well as high anti-pressing and bearing strength.

A spun-bonded polypropylene board comprises PP plastic boards and a chemical fiber grid layer and is structurally characterized in that the chemical fiber grid layer is of a net-shaped fiber structure, the PP plastic boards comprise two layers, the chemical fiber grid layer is located between the two layers of PP plastic boards, and the chemical fiber grid layer is in hot fusion connection with the PP plastic boards. The spun-bonded polypropylene board has the beneficial effects that the impact-resisting degree is high, and the board is not prone to being damaged. A manufacturing method of the spun-bonded polypropylene board is characterized by comprising following steps: a, an extrusion device A is arranged in the direction of a whole main device, and in the extrusion device A, polypropylene particles, polypropylene particle raw materials, modified materials and auxiliary materials are sufficiently mixed to form a formula raw material to be poured into a stirring structure to be stirred; and the beneficial effects of being high in rate of finished products and high in assembly line production degree are achieved.

The invention discloses an automatic compression structure for a carton cover, which includes two cross beams parallel to each other, a mounting plate is fixedly connected between the two beams, and a compression structure is installed above and below the mounting plate. The pressing structure includes a driving motor fixed on the mounting plate, the output shaft of the driving motor is connected with a rotating shaft, the two ends of the rotating shaft are connected with bearing seats, and a pressing plate is fixedly connected with the rotating shaft. The number of compact structures is four and encloses a rectangle. The structure of the invention realizes automatic compression of the carton cover, reduces manpower, improves packaging efficiency, reduces production cost, and the whole structure is reliable and durable.

A carton includes a cuboid body and a cuboid cover both formed by folding paper board. The body includes first through fourth external wall plates connected through creases. The bottom edge of the first external wall plate is connected with an inner bottom plate. The bottom edge of the third external wall plate is connected with an external bottom plate, and two side edges of the external bottom plate are connected with a second internal wall plate and a fourth internal wall plate. The first through fourth external wall plates and the external bottom plate form a cuboid structure. A second internal wall plate is in contact with the inner surface of the second external wall plate. The fourth internal wall plate is in contact with the inner surface of the fourth external wall plate. The inner bottom plate in contact with the inner surface of the external bottom plate.

The invention discloses an automatic thread disassembly and assembly tool. The automatic thread disassembly and assembly tool comprises a motor, a transmission shaft, a rotating joint and a connecting plate, wherein the motor is fixed to a motor support, the transmission shaft is connected to the output of the motor in a transmission mode, the rotating joint is arranged at the end of the transmission shaft and is used for clamping the end of a screw, and the connecting plate can vertically move relative to the transmission shaft and is arranged on the transmission shaft in a sleeving mode. A guide rod is arranged between the connecting plate and the motor support, the upper end of the guide rod is fixedly connected to the connecting plate, the lower end of the guide rod penetrates through the motor support, and a spring is arranged at the tail of the guide rod. According to the tool, the motor, the transmission shaft and the rotating joint can integrally move from front to back relative to the connecting plate, the spring is stretched for being matched with screwing-in or screwing-out of the screw, and therefore a sliding table is eliminated, manual operation is reduced, automatic disassembly is realized, the overall structure is reliable and durable, the appearance is attractive, the weight is light, and the size is small.

The invention discloses a frame type hydraulic spare tire support, and belongs to the technical field of a heavy-duty car. The problems of high center in the height direction, tedious disassembling and assembling, liable breakage of a rocker arm during use, complicate structure and the like of an existing spare tire can be solved. The spare tire support comprises a frame assembly, a turning arm assembly, an upper axis pin, a lower axis pin, a hinged pin and a tilting cylinder, wherein the tilting cylinder and the turning arm are fixed on a car frame through the frame in a hinged mode, and thetilting cylinder is connected with the turning arm in a hinged mode. The tilting cylinder stretches to drive the turning arm to rotate, then the turning arm locks the tire, and the tire falls to the ground when the turning arm rotates.

The invention discloses an underground ventilation system which comprises a main air duct, a plurality of branch air ducts, first-stage throttling orifice plate structures, first-stage differential pressure detection devices, second-stage throttling orifice plate structures and second-stage differential pressure detection devices. Each branch air duct is provided with a plurality of air openings;the first-stage throttling orifice plate structures are arranged between the main air duct and the branch air ducts, and each first-stage throttling orifice plate structure is provided with at least one first-stage throttling orifice; the first-stage differential pressure detection devices are used for detecting the differential pressure of the front sides and the rear sides of first-stage throttling orifice plates; the second-stage throttling orifice plate structures are arranged between the air ports and the branch air ducts where the air ports are located, and each second-stage throttling orifice plate structure is provided with at least one second-stage throttling orifice; and the second-stage differential pressure detection devices are used for detecting the differential pressure of the front sides and the rear sides of second-stage throttling orifice plates. The throttling orifice plate structures are easy to machine, low in cost, easy and convenient to install, free of quick-wear parts, reliable and durable in structure and long in service life, the airflow distribution accuracy can be guaranteed, and air volume distribution in the underground ventilation system can be monitored in real time.

A nail clipper includes a clipper body with a pair of jaws, a lever configured to move the jaws to cut nail, a thumb ring member rotatably mounted to the lever, the thumb ring member having first and second ring members, each defining an inner opening through which a thumb of the user can be introduced. The nail clipper further includes a connection plate member which is formed unitarily with the first and second ring members into one piece and connecting between the lower portions of the first and second ring members, wherein the connection plate member has a planar upper surface and includes a bore formed vertically there-through, and a fastener is coupled to the bore of the connection plate member and allows the thumb ring member to freely rotate relative to the lever.

The invention discloses a motor shaft assembly, which comprises a vertically arranged rotating shaft, wherein a bracket which is fixedly arranged on a compressor shell sleeves the top end part of the rotating shaft; and a bearing which is sleeved coaxially with the rotating shaft is arranged on the top of the bracket. The bracket at the top end of the rotating shaft is capable of providing enough structure support force for upper related structures of the motor shaft assembly in a working process; the overall structure support force of the motor shaft assembly is relatively balanced in distribution; and the phenomena such as component abrasion caused by uneven support force distribution are avoided, so that the overall structure of the compressor is relatively reliable and durable; and meanwhile, the baring block is capable of realizing centering limiting on the bearing to ensure the adaptability and the running stability between the bearing and the related mating members such as the rotating shaft and the crank shaft in the running process of equipment, so that the overall running of the compressor is relatively stable and efficient. The invention further discloses a compressor employing the motor shaft assembly.

The invention discloses an underground ventilation system which comprises a main air duct, a plurality of branch air ducts, first-stage throttling orifice plate structures, first-stage differential pressure detection devices, second-stage throttling orifice plate structures and second-stage differential pressure detection devices. Each branch air duct is provided with a plurality of air openings;the first-stage throttling orifice plate structures are arranged between the main air duct and the branch air ducts, and each first-stage throttling orifice plate structure is provided with at least one first-stage throttling orifice; the first-stage differential pressure detection devices are used for detecting the differential pressure of the front sides and the rear sides of first-stage throttling orifice plates; the second-stage throttling orifice plate structures are arranged between the air ports and the branch air ducts where the air ports are located, and each second-stage throttling orifice plate structure is provided with at least one second-stage throttling orifice; and the second-stage differential pressure detection devices are used for detecting the differential pressure of the front sides and the rear sides of second-stage throttling orifice plates. The throttling orifice plate structures are easy to machine, low in cost, easy and convenient to install, free of quick-wear parts, reliable and durable in structure and long in service life, the airflow distribution accuracy can be guaranteed, and air volume distribution in the underground ventilation system can be monitored in real time.

The invention discloses a heat exchange two-layer pipe sealing structure. The heat exchange two-layer pipe sealing structure comprises an outer pipe, an inner pipe arranged in the outer pipe and a sealing component; the sealing component is installed on the inner pipe in a sleeving mode and comprises an external bevel; and the end of the outer pipe is provided with an internal bevel, and the external bevel and the internal bevel closely abut against each other. The invention further discloses an installing fixture. The installing fixture comprises an installing barrel, the inner side wall of the installing barrel is in threaded fit with the outer side wall of the connecting barrel, and an opening of the end of the installing barrel is provided with a stop body used for stopping the connecting barrel. The invention further discloses an installing method. The installing barrel is twisted to be installed on the connecting barrel through a thread in a sleeving mode, axial motion of the connecting barrel is stopped through the stop body, thus, the connecting barrel rotates along with the installing barrel, the installing barrel continues being twisted to be installed at the end of the outer pipe through a thread in a sleeving mode, the sealing component is pressed through a pressing body, the external bevel is made to be tightly attached to the internal bevel, the connecting barrelis welded to or adheres to the end of the outer pipe through welding or bonding equipment, and the installing barrel is reversely twisted to be separated from the connecting barrel. The heat exchangetwo-layer pipe sealing structure is better and more durable in sealing.

The invention discloses a jewelry ornament with a regulating function, and belongs to the field of finger ring type ornaments. By aiming at the problems that in the prior art, the structures of the finger ring type ornaments are single, and the size of finger rings is inconvenient to regulate, the invention provides the following technical scheme that the jewelry ornament comprises a finger ring assembly, an ornament assembly and a hanging assembly, wherein the hanging assembly is arranged at the lower end of the finger ring assembly; the hanging assembly at least comprises two adjacent through holes (the first through hole and the second through hole) and an isolation post separating the first through hole from the second through hole; the finger ring assembly comprises an annular body; an insertion part is inserted and arranged in the inner surface of the annular body; four openings are uniformly formed and distributed in the insertion part; the openings are through holes; four regulating parts are respectively inserted into the four openings; and each regulating part comprises a regulating part inner surface used for being in contact with the finger of the user and a regulatingpart outer surface used for being inserted into the opening. The jewelry ornament has the advantages that the structure is more novel, and can adapt to wearers with different finger sizes, and the wearing experience and the wearing effects can be obviously improved.

The invention discloses a high-position forest fruit auxiliary manual automatic twisting and picking device. The device comprises a tree fruit clamping mechanism, a power transmission mechanism, a grabbing and releasing power mechanism, a twisting and picking power mechanism and a telescopic rod. The tree fruit clamping mechanism is hinged to the power transmission mechanism through a connecting rod, and the tree fruit clamping mechanism grabs and releases a fruit body through the power transmission mechanism by using the grabbing and releasing power mechanism; the twisting and picking power mechanism drives the tree fruit clamping mechanism, the power transmission mechanism and the grabbing and releasing power mechanism to rotate together, and forest fruit twisting and picking actions areachieved. According to the device, a composite mechanism composed of a ball screw and the plane connecting rod is used for quick grabbing and releasing of the fruit body; an elastic triggering devicecan be triggered at any angle, so that the fruit body does not need to be targeted during picking; a release button can achieve manual control over the release position and time of the fruit body; amain controller of a micro-chip computer automatically controls a motor to work to achieve grabbing, twisting and picking of the fruit body and resetting, and the labor intensity is reduced.

The invention relates to the technical field of oil exploration, belongs to oil exploration wellhead produced liquid flow control equipment, and particularly relates to a device capable of adjusting flow in a modularized mode. Through holes axially penetrating through end faces of two ends of a cylindrical module base body are uniformly distributed in the circumferential faces of end faces of the cylindrical module base body, module bodies are fixedly arranged in the through holes, the diameters of an inlet channel and an outlet channel at two ends of each module body are different, a ball valve is arranged between the inlet channel and the outlet channel at two ends in each module body, and a rotary shaft of each ball valve penetrates out of a cylindrical face of the module base body. The module bodies are installed in the uniformly distributed through holes in the end face of the module base body, the rotary shafts of the ball valves of the module bodies penetrate out of the cylindrical face of the module base body in a center radial mode, and the outer cylindrical faces of two ends of the module base body are respectively provided with connection threads. According to the device, on the condition that shut-down operation is needless, the hole diameter of an oil nozzle is conveniently adjusted, adjustment of the hole diameter is achieved through conversion of the module corresponding to the hole diameter, the modules are mutually independent and are not mutually influenced, operation is flexible, performance is reliable, utilization is convenient, each module can be independently replaced, and utilization cost can be reduced.

The invention discloses a special tool for tightening bolts on the live side by the ground potential method. The combination of an operating rod and a pull rope is used to deal with the defects of the bolts on the live side at the ground potential, so as to improve the defect elimination ability and ensure the safe operation of the line; the operating rod and the pull rope During the use process, one person can complete most of the tightening operations, saving manpower. The invention comprises an operating rod, the operating rod is connected with the fixed arm, the fixed arm assembly head of the fixed arm is connected with the tension arm assembly head of the tension arm, the top end of the fixed arm is extended with a reset arm, and the distal end of the tension arm is connected with the reset arm with a reset tension spring; the far end of the tension arm is also provided with a pull rope ring, and the pull rope ring is connected with a pull rope; the fixed arm ratchet rotating sleeve is rotated and installed on the fixed arm assembly head, and the inner wall of the fixed arm ratchet rotating sleeve is used for In the polygonal structure of the set bolt, the outer surface of the fixed arm ratchet rotating sleeve is the fixed arm ratchet, and the fixed arm ratchet is arranged on the fixed arm assembly head to cooperate with the fixed arm ratchet.

The invention discloses a hand brake pull rod assembly of a motor vehicle. The hand brake pull rod assembly comprises a base, a pull rod seat is hinged to the upper portion of the base, a pull rod sleeve is arranged in front of the pull rod seat, a push rod is arranged in the pull rod sleeve, a pawl is hinged to the pull rod seat, the upper portion of the pawl makes contact with the tail end of the push rod, a ratchet is arranged on the top of the base, a plurality of clamping teeth matched with a clamping jaw portion at the lower end of the pawl are arranged on the periphery of the ratchet, a parking pull cable is connected between the pull rod seat and a brake assembly, a first pull cable groove in contact fit with the parking pull cable is formed in the pull rod seat, the rotation center of the pull rod seat and the parking pull cable are located on the two sides of the first pull cable groove respectively, the surface, making contact with the parking pull cable, of the first pull cable groove is a cambered surface, a second pull cable groove in contact fit with the parking pull cable is formed in the base, and the surface, making contact with the parking pull cable, of the second pull cable groove is a cambered surface. The hand brake pull rod assembly is reliable, durable, convenient and fast to operate and comfortable in operation.

The invention discloses a window guardrail mounting mechanism, which comprises a sleeve, a connecting rod component, a connecting seat component and a fixing rod, wherein the sleeve is mounted in the wall; the interior of the sleeve is in clearance fit with the connecting rod component; the connecting rod component is composed of a connecting rod A and a connecting rod B which are mutually sleeved and fixed; the end part of the connecting rod A is positioned between the window guardrails; the connecting seat component comprises a connecting rod component fixing seat and a fixing rod mounting seat, the former sleeves the end part of the connecting rod B, and the latter is mounted in the connecting rod component in a step matching manner. Due to the adoption of the technical scheme, the window guardrail is in joint with the outer wall of the wall, the connecting rod component is in joint with the inner wall of the wall, the fixing between the window body and the wall is realized as long as the fixing rod penetrates the end part of the connecting rod B and then is in threaded connection with the connecting end of the fixing rod mounting seat. The window guardrail mounting mechanism has the advantages that in case of emergency, the fixing rod can be screwed down without the aid of a wrench, and the window guardrail can be pushed away from the wall, so as to realize escape, and therefore the escape requirements in case of emergency are more met.

The invention relates to a pre-pressing limiting seismic mitigation and absorption method and device for a bridge, and belongs to the technical field of bridge seismic mitigation. The pre-pressing limiting seismic mitigation and absorption method comprises the following steps that a pre-pressing spring is arranged between a pier and a main beam, the main beam acts on the pier in the compression direction of the pre-pressing spring through the pre-pressing spring, and the pre-pressing force of the pre-pressing spring is larger than or equal to 1.5 times of the friction force between the pier and the main beam. The pre-pressing limiting shock absorption and isolation device comprises a pre-pressing limiting unit, the pre-pressing limiting unit comprises a pre-pressing spring and a pre-pressing box used for compressing the pre-pressing spring, and a connecting rod is arranged between the pre-pressing spring and the main beam. When an earthquake is weak, the main beam and the bridge pier can be limited, the structural rigidity between the main beam and the bridge pier is kept, and a bridge structure is in a normal use state; when the earthquake intensity is large, the horizontal rigidity between the main beam and the bridge pier can be reduced, the earthquake response of the bridge is reduced, the position between the main beam and the bridge pier is automatically reset after the earthquake is finished, and normal use of the bridge is guaranteed.