8results about How to "Reduce design height" patented technology

The present invention discloses an eccentric hole type gate valve structure, including a valve body, a valve cover, a valve stem, a gate plate, and a hand wheel; the valve body is respectively provided with a communicating water inlet hole and a water outlet hole, the valve cover forms a positioning connection between the valve stem and the gate plate, and forms a gate plate accommodating cavity with the valve body to accommodate the gate plate when it rises and opens; the water inlet hole includes a water inlet connecting hole part and a water inlet eccentric connecting hole part, and the central axes of the two are not on the same central line, the water outlet hole includes a water outlet connecting hole part and a water outlet eccentric connecting hole part, and the central axes of the two are not on the same central line, the central axes of the water inlet connecting hole part and the water outlet connecting hole part are on the same central axis L1, the central axes of the water inlet eccentric connecting hole part and the water outlet eccentric connecting hole part are on the same central axis L2, and the central axis L2 is on the lower side of the central axis L1. The present invention reduces the height of the gate valve, reduces the materials processed by the gate valve accordingly, saves the processing cost, and is more convenient for the opening and closing operation of the gate valve.

The utility model belongs to the technical field of memory chip testing, and discloses a chip testing machine heat dissipation system which comprises a heat dissipation base, an inverse gravity heat pipe and heat dissipation fins, the heat dissipation base is arranged at the upper end of a CPU of a testing mainboard, DUT testing positions of the testing mainboard are arranged on one side of the heat dissipation base at intervals, and the inverse gravity heat pipe is arranged on the other side of the heat dissipation base. The two sides of the heat dissipation base are connected with a test mainboard and a mainboard supporting plate supported at the lower end of the test mainboard through fastening screws. The heat dissipation fins are arranged below the mainboard supporting plate, one end of the inverse gravity heat pipe is connected to the middle of the upper end of the heat dissipation base, and the other end of the inverse gravity heat pipe penetrates through the mainboard supporting plate and then is connected with the heat dissipation fins. According to the utility model, high-power-consumption efficient heat dissipation of the CPU on the test mainboard is realized, a space is made for a pressing mechanism on the matched Handler, a larger space is provided for a carrying mechanism, the stroke of up-and-down operation during carrying is smaller, the stability of Handler equipment is improved, the design height of the equipment is also reduced, and the cost and the space are saved.

This invention relates to a sponge cutting and trimming machine, comprising a conveying platform, a gantry frame, a ring blade mechanism, and a sliding mechanism including an upper sliding mechanism and a lower sliding mechanism. Each end of the upper sliding mechanism's slide plate is mounted with a rotating wheel via a fixed plate, and the same applies to the lower sliding mechanism's slide plate. The upper and lower sliding mechanisms are synchronously driven by the same motor. Torsion blade mechanisms are mounted on the left and right fixed plates of both the upper and lower sliding mechanisms. A drive motor is mounted on the right fixed plate of the lower sliding mechanism, driving the rotating wheels connected to the right fixed plate. The ring blade winds around four rotating wheels and passes through the torsion blade mechanism. The advantages are that for cutting and trimming rectangular sponges, only a 90-degree torsion blade reversal is needed, reducing blade twist and extending blade life; the torsion blade mechanism uses a cylinder to control the rotation of the torsion blade, which is simple and convenient.

The utility model discloses a bulk material conveying transfer station multi-point transfer blanking device which comprises a positive displacement feeder and a rotary switching mechanism, and the rotary switching mechanism comprises a rotary supporting bearing and a rotary wheel. An electric tee joint and a forked blanking pipe below a head hopper of an original belt conveyor are removed, an electric rotary supporting bearing is installed below the hopper, a volumetric feeder is installed below the rotary supporting bearing, a rotary wheel is installed below the feeder, an annular track is arranged below the rotary wheel, and the rotary wheel is supported above the ground through a stand column. The displacement type feeding machines are driven by the electric rotary supporting bearings to rotate on the rails, any displacement type feeding machine can feed materials to any one of the three belts, later maintenance and overhaul are facilitated, the design height of floors of the transfer station is effectively reduced, and the construction cost of civil engineering is saved.

The utility model provides a bridge deck structure for reducing the design elevation of a sea-crossing railway bridge, which relates to the technical field of bridges and comprises a wave wall, a plurality of drainage devices, a drainage slope and a ballast retaining wall. The wave wall is vertically arranged on the edge of the outer side of the bridge cantilever. The drainage devices are arranged at the root of the bridge cantilever at equal intervals and perpendicularly penetrate through the bridge cantilever. The drainage slopes are arranged on the two sides of the drainage device, and the toes of the drainage slopes are connected with the drainage device. The ballast blocking wall is provided with one side, close to the center line of the bridge floor, of the drainage device, a transversely-through drainage hole is formed in the position, close to the drainage device, of the ballast blocking wall, and a pipe grate is installed on the side, close to the center line of the bridge floor, of the drainage hole. By arranging the wave wall, seawater is prevented from entering the bridge floor, and the design height of the cross-sea railway bridge is effectively reduced. One-way drainage is achieved through a flap valve in the drainage device, seawater is prevented from flowing backwards from a drainage pipe when the wave height exceeds the bridge floor height, the flap valve is replaceable, and later maintenance is facilitated.

The utility model discloses a compact-structure traction type elevator system, which comprises a traction system, a car system, a control system and a guide rail, and is characterized in that the traction system is used for connecting and driving the car system to vertically move and stop moving on the guide rail; the lift car system comprises a first guide shoe and a second guide shoe which are provided with braking devices, and the braking devices are used for changing the relative position states between the first guide shoe and the guide rail and between the second guide shoe and the guide rail. The guide rails are provided with position monitoring devices for monitoring the position difference value between the position of the top of the lift car frame and the position of the elevator lift car body stopping landing ground. The control system is used for controlling the working state of the braking device according to the position difference value. The traction type elevator system with the compact structure can be applied to places needing lower top layer height and lower pit depth on the premise of meeting the standard of a traction type elevator.

The utility model relates to the technical field of pit digging, and discloses a carriage main body structure of an environment-friendly hole digging device, which comprises retractable carriage mechanisms mounted on two sides of a digging main body, each retractable carriage mechanism comprises a fixed cross beam, a sliding cross beam, a fixed upright post and a sliding upright post, the sliding cross beam is connected onto the fixed cross beam in a sliding manner, and the fixed upright post is connected onto the sliding cross beam. The sliding cross beam has the moving freedom degree in the length direction of the fixed cross beam, the fixed stand column is fixedly connected to the top of the sliding cross beam, and the sliding stand column is slidably connected to the fixed stand column and has the moving freedom degree in the height direction of the fixed cross beam. The excavating frame has the moving freedom degree in the height direction of the fixed cross beam. The height adjusting requirement is not affected, meanwhile, the storage function is achieved, the occupied space is reduced, and movement and storage are convenient.

The present invention provides a water quality filtering device and a fish tank, the device includes: a filter barrel; a impeller, a impeller with filter holes is located in the filter barrel and driven to rotate by a power source; a partition, the partition is circumferentially arranged at the periphery of the impeller and fixed relative to the filter barrel, the outer ring of the partition is provided with an inclined groove, the inclined groove is connected to the sedimentation bin; a filter cotton plate, the filter cotton plate with restoring force is located above the impeller, and is locked with the impeller by a male and female lock, and can rotate with the impeller, there is a gap between the filter cotton plate and the filter barrel wall for dirt to pass through, the gap is arranged relative to the inclined groove on the partition plate. The fish tank using the above water quality filtering device can easily realize the circulation filtering mode of the fish tank raw water, the filter cotton plate self-cleaning mode and the filter cotton plate dehydration mode.