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116 results about "Drop structure" patented technology

A drop structure, also known as a grade control, sill, or weir, is a manmade structure, typically small and built on minor streams, or as part of a dam's spillway, to pass water to a lower elevation while controlling the energy and velocity of the water as it passes over. Unlike most dams, drop structures are usually not built for water impoundment, diversion or raising the water level. Mostly built on watercourses with steep gradients, they serve other purposes such as water oxygenation and erosion prevention.

Staircase ramp

InactiveCN104912267AConvenient up and downStop slippingStairwaysDrop structureEngineering
The invention provides a staircase ramp, which belongs to a ramp used for upward or downward towing of draw-bar cases and bags and combination with a staircase. A walking region is arranged between the two ramps; and people walk in the walking region when towing the draw-bar cases and bags. The staircase ramp provided by the invention has the advantages that pedestrians pulling the draw-bar cases and bags can conveniently go upstairs or downstairs, so that the force exerted on the draw-bar cases and bags by people and the gravity of the draw-bar cases and bags are simultaneously exerted on the longitudinal vertical cross section of the corresponding ramp; and the draw-bar cases and bags can be easily controlled to be linearly and upwards towed or linearly and downwards towed along the ramp. Baffle strips are arranged in connecting positions of the ramps and the staircase and the two ends of the walking region; and the draw-bar cases and bags are prevented from sliding and falling off from the ramp during the upward or downward moving. The invention also provides the staircase ramp with an anti-slip facility. An anti-slip structure consists of a plurality of half-water-drop structures in uniform distribution, wherein each half-water-drop structure comprises arc-shaped circular arc sections and concave circular arc sections in end-to-end connection. The anti-slip structure has the advantage that the probability that the cases and bags fall out from the hand of people and the potential danger that the cases and bags bruise the pedestrians are greatly reduced.
Owner:UNIV OF SHANGHAI FOR SCI & TECH

One-die multiple-part aluminium alloy tube hot-extrusion die

The invention relates to a hot extrusion die of aluminum alloy pipes with multiple output, in particular to the hot extrusion of the aluminum alloy pipes and is formed by assembling and combining an upper die (1) and a lower die (2), wherein, a feeding end of the lower die (2) is provided with a welding chamber (2.1) and a die cavity (2.2) and a discharging hole (2.3) is processed at a discharging end of the lower die (2); the feeding end of the upper die (1) is provided with a decompress counter bore (1.1), and split flow holes (1.2) of the upper die (1) are distributed in a multiplied way with the die cavity (2.2) of the lower die (2) and are positioned at the circumference of the die cavity (2.2) of the lower die (2); all bridge sites (1.3) of the upper die (1) are processed into water drop structure; the discharging surface of the upper die (1) is provided with a plurality of square head die cores (1.5) which are provided with a support lug boss (1.4) among the square head die cores (1.5), and the lug boss (1.4) is closely and directly attached to the bottom part of the welding chamber (2.1) of the lower die (2); the square head die cores (1.5) and the bridge sites (1.3) are transited smoothly. The hot extrusion die can cause the extrusion products of the aluminum alloy pipes to be uniform in wall thickness, consistent in flow rate and high in rate of finished products.
Owner:JIANGYIN GIANSUN MOLD

Drop test machine for exterior decorating product of automobile

ActiveCN106706253AMeet the requirements of setting the test point downwardMeet the requirements of drop resistance testShock testingVehicle shock testingDrop testsTested time
The invention provides a drop test machine for an exterior decorating product of an automobile, and belongs to the technical field of machinery. The problems on complex drop structure, high production cost and incapability of meeting the requirement for a drop test of a plurality of parts of a test product are solved. The drop test machine for the exterior decorating product of the automobile disclosed by the invention comprises a longitudinally arranged first guide rail, a drop mechanism, a driving mechanism and a controller, wherein the drop mechanism is arranged on the first guide rail, and can slide up and down along the first guide rail, a supporting plate is arranged on the drop mechanism, the driving mechanism is arranged to drive the drop mechanism to slide up and down along the first guide rail, the controller is arranged to control operation of the driving mechanism and the supporting plate, the test product placed on the supporting plate is driven by the driving mechanism to rise to a predetermined height along the first guide rail along with the drop mechanism, the controller is controlled to release the supporting plate, the test product drops under the function of gravity, and therefore the drop test is finished. The drop test machine for the exterior decorating product of the automobile disclosed by the invention has the advantages of simple structure, short test time and capability of placing test products in different gestures at the same time, and can meet the requirement for the drop test of the plurality of parts of the test product.
Owner:NINGBO HONGXIECHENG AUTO PARTS CO LTD

Large-size net breeding device applied to meat duck breeding

InactiveCN107853211AEasy height controlReasonable designBird housingsDrop structureFixed position
The invention provides a large-size net breeding device applied to meat duck breeding, belonging to the technical field of livestock breeding equipment. According to a technical scheme of the invention, the large-size net breeding device applied to meat duck breeding comprises a plurality of equidistantly-arranged cage bodies, feed groove structures which are separately arranged at the front end of each cage body, power mechanisms which are separately arranged at the top part of the front side surface of each cage body and used for driving feed groove structures to lift and drop, and a water line system which penetrates through the plurality of the cage bodies, wherein the front side surface of each cage body is provided with a lift-drop structure used for adjusting the height of a feed groove mechanism. The invention has the following beneficial effects: the large-size net breeding device has reasonable design and is simple and convenient to use; a proper height of a feed groove is adjusted through a lift-drop structure, so the demands for feed grooves with different heights in the process of meat duck breeding are met; the plurality of the feed grooves can be simultaneously adjusted for height control, so high control to the plurality of the feed grooves during large-scale breeding can be easily realized; meanwhile, an operator can stand at a fixed position to operate according to needs, so integral synchronous adjustment of the plurality of the feed grooves of meat duck cages is realized.
Owner:NEW HOPE LIUHE FEED

Novel anti-drop structure for IECC19 plug

ActiveCN104425974AStructural size requirements are not highSimple structureCoupling device detailsDrop structureEngineering
The invention discloses a novel anti-drop structure for an IECC19 plug. The structure comprises a plug body; the lower part of the plug body is inwards provided with a plug bush; the upper part of the plug body is inwards provided with a guide slot parallel to the plug bush; a button cavity extends from the other end of the guide slot perpendicularly upwards; a guide rod is arranged in the guide slot; a limiting block extends downwards from one end of the guide rod; the middle of the bottom surface of the limiting block is inwards provided with a V-shaped groove; a button extends perpendicularly upwards from the other end of the guide rod; the button is positioned in the button cavity; a boss extends upwards from the vicinity of the middle of the bottom surface of the guide slot; the upper end face of the boss is in contact with the bottom surface of the guide rod; a spring is arranged between the boss and the limiting block; one end of the spring is supported against the boss, and the other end of the spring is supported against the limiting block. The novel anti-drop structure is simple, and convenient to use; as the whole anti-drop device is an integral built-in structure, the whole anti-drop device is attractive and is fastened closely and reliably; the requirement on the structural size of the plug is not high.
Owner:宁波腾浪网络通信设备有限公司

Anti-drop structure of lamp shell and upper cover of lamp

InactiveCN101871626ATroubleshoot field maintenance issuesShorten the time of opening the cover for maintenanceLight fasteningsDrop structureEngineering
The invention provides a connecting structure of a lamp shell and an upper cover of a lamp, which is arranged at the connecting part of the shell and the upper cover of an illuminating lamp and comprises a hanging part and a supporting part, wherein the hanging part is arranged on the upper cover, the supporting part is arranged on the shell, the hanging part is a hook arranged at the periphery of the upper cover, the supporting part is a hinge pin correspondingly arranged on top of the shell, the hinge pin is hinged with the hook part of the hanging part, two supporting plates are arranged in parallel on the outside of the shell, the two supporting plates are correspondingly provided with pin holes, two ends of the hinge pin penetrate the pin holes, and a middle part is arranged at the hook of the hanging part. The invention effectively solves the problem of field maintenance of professional lamps, the time for the uncovering maintenance of the lamp can be markedly shortened, and anti-looseness of the shell and the upper cover is realized, each part in the inner cavity of the lamp is rapidly maintained, and the service life of the lamp is prolonged, thereby the economic loss of a client due to lamp damage is avoided, the maintenance cost is saved, and simultaneously, the market competitive power by adopting the lamp is enhanced to win the market.
Owner:OCEANS KING LIGHTING SCI&TECH CO LTD +1

Sealed grouting front end device and grouting construction method

The invention discloses a sealed grouting front end device and a grouting construction method. The device comprises a protective casing, a junction pipe and a grouting connection pipe. The first end of the protective casing is detachably connected with a conical head; the pipe wall of the junction pipe is provided with a grouting hole, the protective casing covers the grouting hole by sleeving theouter side of the junction pipe, and the junction pipe and the protective casing can be relatively movably arranged and are provided with an anti-drop structure; and the first end of the grouting connection pipe is detachably connected to the end, far away from the conical head, of the junction pipe, and the first end of the protective casing sleeves the outer side of the first end of the grouting connection pipe and is provided with a sealing ring. When the grouting front end device carries out drilling in the soil body, the device is in a closed state, due to the fact that the sealing ringis additionally arranged, the front end device is in a closed state, silt is prevented from entering the device from the grouting hole to cause blockage, when a grouting pipe reaches a designed grouting position, grouting pressure is applied to the grouting pipe, the protective casing receives forward thrust, therefore, the device is opened, the grouting hole is exposed, and grouting is carried out.
Owner:上海隧道地基基础工程有限公司 +1

Anti-dropping electronic wire connecting device

The invention discloses an anti-dropping electronic wire connecting device which comprises a connection joint, a joint anti-dropping structure, a wire body anti-dropping structure and a stable anti-pulling structure. The connection joint comprises a plug board and a plug. The plug board is an insulating plastic plug board. The plug is arranged on the left side of the plug board. The plug is an insulating plastic plug. Uniformly distributed through-holes are arranged in the whole wall body composed of the plug board and the plug. Uniformly distributed mounting grooves are arranged on the wall body of the plug. Copper pieces are arranged in the mounting grooves. The mounting grooves are communicated with the corresponding through-holes. Bumps are arranged on the outer wall surfaces of the copper pieces. According to the anti-dropping electronic wire connecting device, fast wire body classification connection and line dredging are realized; full consideration is given to anti-dropping parts; the plug and the electronic wiring harness socket of an electrical component, wire bodies and the joint, and the wire bodies are reasonably prevented from falling off in an all-round manner; the workload of personnel is reduced; and the connection quality of the wire bodies is ensured.
Owner:梁鹏慧

Quantitative bidirectional powder spreading device and laser selective melting forming device thereof

The invention discloses a quantitative bidirectional powder spreading device and a laser selective melting forming device thereof. A powder dropping structure and a powder spreading structure are included. The powder dropping structure comprises a powder dropping tank. An opening for dropping powder is formed in the lower portion of the powder dropping tank. A rotatable powder dropping shaft is arranged in the powder dropping tank. The powder spreading device comprises a powder dropping plate. A plurality of distribution guide pipes are arranged on the upper portion of the powder dropping plate and communicate with an inner cavity of the powder dropping plate. Scraper brackets are connected to the two ends of the powder dropping plate. Motion sliders are arranged under the scraper bracketsand move on preset rails. A scraper is arranged on the bottom face of the powder dropping plate. The two sides of the scraper are each provided with a powder dropping groove, the powder dropping grooves are openings in the bottom face of the powder dropping plate. With the adoption of the upper powder dropping mode, a powder feeding structure is arranged on the upper portion of the equipment to replace a lower powder feeding mode, the inner size of a forming cavity is reduced substantially, the stroke of a powder spreading arm is reduced, and forming time is shortened.
Owner:XI AN JIAOTONG UNIV
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