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780results about How to "Easy to apply force" patented technology

Ratchet type insulation wire clamping pincers

ActiveCN106229880AGuaranteed linkageReliable relative to action purposeApparatus for overhead lines/cablesEngineeringHigh pressure
The invention belongs to the field of electric power construction tools and in particular relates to ratchet type insulation wire clamping pincers used for high-voltage electrified wire construction. The ratchet type insulation wire clamping pincers comprise a first insulation rod and a second insulation rod. A block type chuck and a hook-like chuck are respectively arranged on top ends of the two insulation rods. The ratchet type insulation wire clamping pincers also comprise a ratchet assembly. The ratchet assembly comprises a gear part, a back support and a locking piece. A ratchet, a handle part and a pawl are arranged in the back support. The locking piece comprises a top block and a press spring. The top block is in the same direction with the unidirectional locking direction of the pawl relative to the unidirectional locking direction of the ratchet. The top block is arranged on a moving route of the handle part or the pawl. A matching surface used for matching the handle part or the pawl is arranged on the top block. The pressing force direction, relative to the matching surface, of the handle part or the pawl is opposite to the elastic restoring force direction of the press spring. The pincers is highly practical and convenient and quick to use; and high safety during working is ensured while high-efficient hot-line work is ensured.
Owner:STATE GRID CORP OF CHINA +1

Cement base material permanent load composite corrosion test instrument

The invention relates to an apparatus using mechanical stress to test solid material strength characteristic, a cement base material dead loading compound corrosion test instrument. The inventive cement base material dead loading compound corrosion test instrument includes a motherboard and a clamp plate equipped above the motherboard, wherein, support upright posts are connected between the motherboard and the clamp plate, one end of the support upright post is fixed on the motherboard, the other end is equipped with screw thread and penetrates the clamp plate; each support upright post is equipped with two nuts copulated to the screw thread, the two nuts are respectively located on the top and bottom sides of the clamp plate; the middle part below the clamp plate is mounted with a spring, the lower end of the spring is fixed with a clamp plate, test pieces are clamped between the clamp plate and the motherboard. The apparatus has simple structure, convenient operations, easy load exerting and control; can maintain the test piece model at a stable load level for a long term, thereby providing dependable experimental device and approach for investigating material durability problem under compound action of load and corrosion surroundings.
Owner:QINGDAO TECHNOLOGICAL UNIVERSITY

Quick connecting structure for electrically propelled wheelchair head and wheelchair and electrically propelled wheelchair head

The invention discloses a quick connecting structure for an electrically propelled wheelchair head and a wheelchair and the electrically propelled wheelchair head and belongs to the field of electric combined wheelchairs. The quick connecting structure comprises wheelchair head connecting portions arranged on two sides of wheelchair head and wheelchair connecting portions arranged on two sides of the front portion of the wheelchair, wherein each wheelchair connecting portion comprises a locking device and a clamping hook, each wheelchair connecting portion comprises a lower clamping hole matched with the corresponding clamping hook, the wheelchair head is obliquely pushed to the front side of the wheelchair to enable the clamping hooks to be located under the lower clamping holes, the wheelchair head is lifted to enable the clamping hooks to be clamped into the lower clamping holes, a front wheel of the wheelchair is lifted, and the locking devices enable the wheelchair head and the wheelchair to be locked integrally. The invention further discloses the electrically propelled wheelchair head. The quick connecting structure does not need screws for installation, the wheelchair head is clamped into the wheelchair and is upwards lifted to enable the front wheel of the wheelchair to be lifted so as to form a three-wheeled capable rotating freely, mounting and dismounting of the wheelchair head and the wheelchair are very convenient and quick, and the wheelchair is simple in structure and firm in connection.
Owner:江苏福维健康科技有限公司

Mechanical pressure sensing ultrasonic probe for elasticity imaging

The invention relates to a mechanical pressure sensing ultrasonic probe for elasticity imaging, which comprises a probe core part, a handle, a probe seat, a sliding shaft, a sliding bearing, a pressure sensor and a spring. The lower end of the sliding shaft is connected with the probe core part; both ends of the spring are respectively connected with the probe seat and the upper end of the pressure sensor; the lower end of the pressure sensor is connected with the probe core part; and the handle is arranged at the top of the probe seat. The spring is arranged between the probe core part and the handle for carrying out buffering, so that the probe core part is always adhered to a checked part to carry out low-amplitude vibration, and thus, the problem of interruption of elasticity imaging, which is caused by the case that the probe core part is separated from the checked part, is avoided; the force application direction is more easily kept perpendicular to the surface of the probe core part, so that quality of elasticity imaging is improved; and moreover, the pressure sensor is arranged at the back of the probe core part, so that the stress condition of the checked part is more accurately detected and the elastic modulus of the checked part is better reflected, and thus, elasticity difference of the checked part and the surroundings thereof is more accurately judged.
Owner:SHANTOU INST OF UITRASONIC INSTR CO LTD

Bending-adjustable conveying system for interventional cardiac valve

PendingCN108378960AStable supportStable expansion forceHeart valvesEngineeringHeart valve
The invention discloses a bending-adjustable conveying system for an interventional cardiac valve. The system comprises an outer sheath tube, an core tube assembly which is arranged in the outer sheath tube and can relatively slide in the axial direction and an operation handle connected with the proximal ends of the outer sheath tube and the core tube assembly; a tube body of the outer sheath tube is provided with a distal end and the proximal end, the handle is connected with a traction wire for pulling the distal end of the tube body to bend, a distal end of the traction wire is connected with the tube body, the connection part is located at the distal end of the tube body or is adjacent to the distal end of the tube body, and at least one section of the traction wire is a free sectionwhich is free outside the tube body; the system is further provided with floating limit strips, proximal ends of the floating limit strips are starting ends fixedly arranged opposite to a fixing heador the core tube assembly, and the floating limit strips float between a mounting portion of the interventional cardiac valve and the outer sheath tube; the outer wall of the fixing head is provided with a positioning part used for being matched with a connecting lug of the interventional cardiac valve, the connecting lug is completely released in front of the outer sheath tube, and the floating limit strips are bound by the outer sheath tube to keep the cooperation between the connecting lug and the positioning portion.
Owner:VENUS MEDTECH (HANGZHOU) INC

Protection cable skinning knife

The invention provides a protection cable skinning knife which comprises a handheld cylinder. A tightening mechanism is arranged on the upper end of the cylinder. The tightening mechanism comprises a ring with an internal thread and a tightening cylinder with an external thread. The ring sleeves the tightening cylinder, and is in matching connection with the tightening cylinder through the internal thread and the external thread. The tightening cylinder is composed of a number of tensioning bars, and extends outward along the upper end of the cylinder to form a cone with tapering bore. The axes of the tightening cylinder and the cylinder are superimposed. Two rod-shaped tools are symmetrically arranged on the upper end of the tightening cylinder, and a tool tip is arranged on the upper end of each tool. A tool rod is arranged on the lower end of each tool. The tool rods and the tensioning bars are hinged. An arc-shaped part is arranged on the front end of each tool tip. An arc-shaped notch with an outward opening is arranged below each arc-shaped part. An arc-shaped blade is formed on the inner side of the upper part of each arc-shaped notch. The arc-shaped blades of two tools are inwardly corresponding. According to the invention, a cable skinning effect is improved; skinning time can be greatly reduced; when skinning is carried out, a cable core wire can be effectively protected from being scratched; the whole protection cable skinning knife sleeves a cable; and the protection cable skinning knife has the advantages of easy use and time and effort saving.
Owner:STATE GRID SHANDONG ELECTRIC POWER CO YUNCHENG POWER SUPPLY CO

Folding tent

The invention discloses a folding tent which comprises a folding tent rack, wherein the tent rack comprises a top rack and support legs which are connected to the lower part of the top rack; each support leg comprises an outer tube assembly, an inner tube and a locking mechanism, the inner tube can be telescopically inserted into the outer tube assembly along the self length direction, the locking mechanism is used for limiting the relative position between the outer tube assembly and the inner tube and comprises a pressing piece and a spring, the pressing piece can be movably arranged on the outer tube assembly and can move relative to the inner tube, and the spring is used for enabling the pressing piece to be abutted on the outer tube assembly and be tightly abutted with the outer wall of the inner tube when force is applied to the pressing piece. When the locking mechanism is in a locking state, the pressing piece is tightly pressed on the outer wall of the inner tube under the acting force of the spring, so that the inner tube cannot move, and simultaneously, the pressing piece is abutted on the outer tube assembly, so that the pressing piece cannot move; when operating personnel overcomes the acting force of the spring to pull the pressing piece, the pressing piece and the outer wall of the inner tube are mutually released, so that the inner tube can telescopically move. The folding tent has the advantages of simple structure and convenience in operation, and locking force cannot be limited.
Owner:WITH U E COMMERCE SHANGHAI CO LTD

Diagonal hole drilling mold for nozzle ring of engine

The invention relates to a diagonal hole drilling mold for a nozzle ring of an engine. The diagonal hole drilling mold comprises a base, supports, a positioner, a mandrel, a bearing, a tangential clamping cover, a bearing cap, an indexing plate and the like. The left and right supports are fixed to the base through pins and bolts, the bearing is mounted in center holes in the upper ends of the left and right supports, the mandrel is connected with a positioning plate through the pins and the bolts and is placed in bearing holes at two ends separately, the bearing cap is located at the upper end of a bracket, the tangential clamping cover is located between the bearing cap and the bearing, and one end of the tangential clamping cover is connected with a handle nut. The mandrel is locked during work. The indexing plate is connected with a lug at the left side of the positioning plate through the pins and the bolts, and a special angle is formed between the indexing plate and the lug. When a drilling mold works, a diagonal hole is processed from the front face and the back face by positioning the drilling mold through positioning holes in two ends of the indexing plate position. Positioning rings and the positioning plate are connected through the pins and the bolts, and the positioning is achieved by the cooperation of an excircle and an inner hole of the nozzle ring. The diagonal hole drilling mold has the advantages of being high in positioning precision, convenient to operate, high in practicality and the like, and can be used for processing complex diagonal holes.
Owner:XIAN SPACE ENGINE CO LTD

Fence pillar

InactiveCN102493711AReduce protrusionReduce climbing pointsFencingEngineeringFastener
The invention relates to a fence pillar, which comprises a pillar body extending longitudinally and a fastener, wherein the pillar body comprises a front wall face connected with a fence sheet body, a rear wall face opposite to the front wall face and a side wall face connected between the front wall face and the rear wall face; the front end of the fastener is positioned on the fence sheet body and the front wall face of the pillar body; the rear end of the fastener passes through the fence sheet body and the pillar body, and is connected to the rear wall face of the pillar body in a fastened manner; part of the rear wall face is sunken towards the front wall face to form a groove; and the rear end of the fastener is positioned in the groove, and does not pass through the notch of the groove. The groove is formed on the rear wall face of the pillar body, so that the ends of the fastener are accommodated in the groove; the number of bulges on the rear side of the fence pillar is reduced, and points of strength for climbing are reduced, so that people climb on the fence pillar difficultly; furthermore, tools are difficultly stretch into the groove and destroy the internal part of the fence pillar; and the strength of the pillar body is improved, and the cost of the fastener is reduced. The fence pillar is high in climbing resistance, destroying resistance and safety.
Owner:ZHANGJIAGANG GOLDNET FENCING SYST

Roller

The invention provides a roller. The interior of a roller body is hollow and openings are formed in the two ends of the roller body; a micropore is formed on the roller body; a hairbrush sleeve sleeves on the peripheral surface of the roller body; two roller support bases are respectively arranged on the openings in the two ends of the roller body; mounting holes are formed on both of the two roller support bases; the quantity of pipe sleeves is two; the pipe sleeves are respectively penetrated into two mounting holes; a first conveying pipe is located in the roller body and is coaxially arranged with the roller body; the two ends of the first conveying pipe are respectively penetrated into the two pipe sleeves; a conveying hole is formed on the first conveying pipe; a helical blade sleeves on the first conveying pipe; the two ends of the helical blade are respectively connected with the two roller support bases; a second conveying pipe is hollow; one end of the second conveying pipe is communicated with the first conveying pipe; a connector is arranged at the other end of the second conveying pipe. The roller has the beneficial effects that the structure is reasonable, the roller is beneficial to the draining of the coating slurry from the conveying hole, the coating slurry leakage can be prevented, the coating slurry in the roller main body is uniform, the coating effect is better and the use effect is good and reliable.
Owner:NINGBO LIS IND

Soil sampling device

InactiveCN104634610AAvoid subsamplingAvoiding effects that weaken the sampler's drop-through effectWithdrawing sample devicesEngineeringPush out
The invention provides a soil sampling device. The soil sampling device comprises an outer pipe, wherein a hollow sampling head is arranged at the lower part of the outer pipe; the sampling head is provided with a peripheral side wall for forming a hollow inner cavity; the sampling head is provided with a sampling hole communicated with the hollow inner cavity; an inner rod which can move back and forth in an up-down direction is arranged in the outer pipe; the inner rod is provided with a blocking structure for correspondingly opening and blocking the sampling hole when the inner rod moves up and down; the sampling hole is formed in the peripheral side wall; the sampling hole is provided with an inner hole which extends to an inner wall surface toward the hollow inner cavity of the peripheral side wall; the inner hole is higher than the bottom of the hollow inner cavity in the up-down direction; and the blocking structure is located in the hollow inner cavity and is used for opening and blocking the sampling hole through controlling the opening and closing of the inner hole when the inner rod moves up and down. Soil entering the hollow inner cavity falls into the bottom of the hollow inner cavity, and the soil is not pushed out of the hollow inner cavity by the blocking structure on the inner rod, so that the sampling success rate is improved.
Owner:平顶山市质量技术监督检验测试中心

Hanging basket structure for constructional engineering and mounting method thereof

The invention discloses a hanging basket structure for constructional engineering and a mounting method thereof. The structure comprises a first suspension platform and a second suspension platform, wherein a lifting frame is arranged in the second suspension platform; the lifting frame comprises a lifting platform and a lifting rod; the lifting rod is provided with a butted-joint rod; the butted-joint rod is connected with a working table; a traction adjustment mechanism is arranged at the top end of the lifting rod; the traction adjustment mechanism comprises an adjusting base and two adjusting rods; a traction rod is arranged between the adjusting rods; a mounting block is provided with a connecting rod; the connecting rod is provided with a protection device. The mounting method comprises the following steps: a, manufacturing the first suspension platform and the second suspension platform; b, mounting the lifting frame; c, mounting the working table; d, mounting the protection device; e, mounting the traction adjustment mechanism. According to the hanging basket structure for constructional engineering disclosed by the invention, steel components are conveniently delivered byconstruction personnel, so that the phenomenon that a hanging hook for hanging the steel components contacts with the hanging basket structure is avoided, the lifting stability of the hanging basket structure can be enhanced, and simultaneously, the fastness of the whole device is improved, and the security is improved.
Owner:段学治
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