184 results about "Single hole" patented technology

The invention discloses a computer hard disk bracket machining device and method, and particularly relates to the technical field of computer hard disk bracket machining, the computer hard disk bracket machining device comprises a rack, a three-axis module is arranged in the rack, a mounting seat is arranged on the three-axis module, a clamping assembly is arranged on the mounting seat, and a drill bit assembly is arranged on the clamping assembly; the drill bit assembly comprises a drill bit base, a grinding sleeve, a drilling drill bit sleeve, a locking cover and a center shaft. The center shaft is installed in the middle of the top end of the drill bit seat, a drilling drill bit sleeve is inserted into the center shaft, and the ruler diameter of the drilling drill bit sleeve is gradually increased from bottom to top to form a multi-stage drilling structure. Polishing sleeves are arranged between the drill bit seats and the drilling drill bit sleeves and between the drill bit seats and the drilling drill bit sleeves, the polishing sleeves are inserted into the center shaft, the ruler diameters of the polishing sleeves are gradually increased from bottom to top, the polishing sleeves are matched with the corresponding drill bit seats / drilling drill bit sleeves in size, and a multi-stage polishing structure is formed. By means of the drill bit assembly integrating the multi-stage drilling drill bit sleeve and the grinding sleeve matched with the multi-stage drilling drill bit sleeve in size, the single-hole machining and grinding efficiency is greatly improved.

1. The name of the design product: filter core (different single hole ladder B). 2. The use of the design product: the design product is used in a device for filtering water quality; or used for placing in a fish tank to filter water quality, cultivate bacteria; or used for decoration inside the fish tank. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

The utility model relates to the technical field of electromagnetic valves, in particular to a two-position three-way electromagnetic valve. In the prior art, small holes need to be machined in the end socket, the machining difficulty is high, the machining efficiency is low, and the surface smoothness is difficult to control. According to the two-position three-way electromagnetic valve, a movable core iron is further arranged in a sleeve, a first valve port and a second valve port are formed in a double-hole pole, a fixed sealing block is arranged on the core iron, the first valve port and the second valve port in the double-hole pole are sealed by the sealing block, and the sealing block is communicated with an inlet connecting pipe; a small valve seat is mounted on the single-hole pole, a single-pole hole is formed in the small valve seat, and the single-pole hole is communicated with a first outlet connecting pipe through a second transition hole and a first transition hole; the coil C is powered off, the core iron is separated from the single-hole pole, the sealing block closes the first valve port, and the inlet connecting pipe is communicated with the first outlet pipe; the coil C is electrified, the core iron is attracted with the single-hole pole, and the inlet connecting pipe is communicated with the second outlet connecting pipe. According to the utility model, the structure is reasonable, the flow maximization and the minimum pressure difference in the valve cavity can be realized, the processing difficulty of the product is reduced, and the core iron acts reliably.

The application discloses a single-hole rotational flow urea nozzle with geometrically induced vortex line cavitation, which comprises a ball valve, a valve seat, a rotational flow sheet, a flow converging sheet, an outer shell and a hole plate, the valve seat is fixedly connected with the inner wall of the outer shell, an annular protrusion is arranged in the valve seat, a through hole is arranged in the middle of the annular protrusion and is communicated with both ends of the annular protrusion, a sealing ball is arranged at one end of the annular protrusion, and the sealing ball is fixed at one end of the ball valve; the ball valve is movably connected with the inner wall of the outer shell, and a gap for fluid flow is arranged between the ball valve and the outer shell; the other end of the annular protrusion is sequentially provided with the rotational flow sheet, the flow converging sheet and the hole plate, the rotational flow sheet is abutted against the annular protrusion, and a plurality of rotational flow channels which are inclined relative to the axis of the rotational flow sheet are arranged on the rotational flow sheet; and the flow converging sheet is provided with a flow converging channel. The rotational flow sheet provided with the rotational flow channels cooperates with the flow converging sheet, so that the spray cone angle is smaller and the spray is uniformly distributed in the circumferential direction under the working condition of determining the flow of the nozzle.

The utility model discloses a replaceable probe structure, including shielding casing and insulating sleeve, shielding casing and insulating sleeve whole compression integrated, insulating sleeve is located in shielding casing is inclined, and probe is detachably installed in insulating sleeve through limiting device. Probe and limiting device cooperation detachably install in insulating sleeve, can according to test demand, quickly replace the damaged or different specification's probe, need not to make probe card again or carry out the dismounting positioning again, reduce maintenance cost and improve use flexibility, and simultaneously insulating sleeve can adopt the form of single -hole or double -hole, can be adapted to single -hole single -probe test or double -hole double -probe test.

The application discloses a single-hole cluster test method, device and equipment for a water curtain hole of a cave depot and a storage medium, relates to the technical field of underground engineering and water sealing, and comprises the following steps: receiving a test instruction input by a user; when the test instruction is a single-hole water injection and backflow test instruction, sending a single-hole water injection and backflow test control signal to a programmable logic controller of a target water curtain hole through an OPC server, so as to perform single-hole water injection and backflow test and collect first test data; when the test instruction is a water curtain effectiveness test instruction, sending a water curtain effectiveness test control signal to programmable logic controllers of all water curtain holes through the OPC server, so as to perform water curtain effectiveness test on all water curtain holes and collect second test data; and obtaining a test result according to the first test data and the second test data. According to the application, remote data collection and test control of water curtain hole clusters can be realized without the need of personnel entering the cave depot, and the test efficiency and data accuracy are improved.

1. Name of the designed product: faucet body (Jufu single hole). 2. Use of the designed product: for faucet body. 3. Design points of the designed product: in shape. 4. Picture or photo that best indicates the design points: perspective view.

The utility model discloses a square hole cushion block type silicon carbide stand column supporting frame which comprises a supporting stand column set, the supporting stand column set comprises a supporting stand column, a plurality of cross beam connecting single holes are formed in the supporting stand column, supporting cushion blocks are arranged in the cross beam connecting single holes, contact parts are formed at the tops of the supporting cushion blocks, and cross beams are connected to the contact parts; the connecting stand column set comprises connecting stand columns, a plurality of cross beam connecting double holes are formed in the connecting stand columns, and the supporting cushion blocks are installed in the cross beam connecting double holes; the supporting cushion blocks are used as connecting pieces between the cross beam connecting single holes or the cross beam connecting double holes and the bearing plate, so that corners on the stand columns can be prevented from being abraded when the cross beams are installed and pulled on the supporting stand columns or the connecting stand columns, and the corners only need to bear abrasion of bearing materials; and the service lives of the cross beam connecting single hole and the cross beam connecting double holes are prolonged to a certain extent.

The single-hole multi-channel sheathing canal system comprises an incision sleeve and a first flexible sealing cover, the incision sleeve is communicated with the first flexible sealing cover in a sealed mode, and meanwhile a plurality of connecting holes are formed in the other end of the first flexible sealing cover; each connecting hole is provided with a flexible pipe sealing assembly, and each flexible pipe sealing assembly is connected with the first flexible sealing cover through a rigid sealing assembly. According to the sheath tube system, the connecting areas of the flexible sealing tube assemblies and the first flexible sealing cover have high rigidity through the rigid sealing assemblies, so that the overall flexibility of the sheath tube system is guaranteed, and meanwhile the non-deformable local rigidity is guaranteed in part of areas; therefore, the air tightness of the sheathing canal system is ensured, operation at any limit angle in the hemispherical space is realized, the flexibility of instrument operation is improved, and meanwhile, the realization of the limit operation angle can also ensure that all instruments do not interfere with one another when a plurality of instruments are operated.

The utility model relates to the technical field of single-hole multi-channel puncture outfits and discloses a supporting type single-hole multi-channel puncture outfit which comprises an incision protection sleeve, a mechanical channel is fixedly installed at the upper end of the incision protection sleeve, an inner clamping ring is fixedly installed at the lower end of the incision protection sleeve, and a balloon ring is arranged on the outer surface of the incision protection sleeve in a sleeved mode. The supporting mechanism is arranged on the incision protection sleeve, the supporting mechanism comprises two supporting plates and two clamping plates, the two supporting plates are arranged on the outer surface of the incision protection sleeve in a sleeving mode, and through the arrangement of the two supporting plates and the two base plates, when a certain distance is left at the upper end of the single-hole multi-channel puncture outfit, the single-hole multi-channel puncture outfit can be fixed; according to the single-hole multi-channel puncture outfit, the two supporting plates and the two base plates can support the remaining section, the single-hole multi-channel puncture outfit does not need to be detached and replaced, the single-hole multi-channel puncture outfit can be continuously used, the shaking amplitude generated when a subsequent surgical instrument makes contact with the single-hole multi-channel puncture outfit is reduced, and the use efficiency of the single-hole multi-channel puncture outfit is improved.

The utility model discloses a fixing tool facilitating quick drilling of oil holes in two ends of an engine valve rocker arm, which comprises a bottom plate, opening U-shaped grooves are arranged on two opposite sides of the bottom plate, a first clamping plate and a second clamping plate are arranged on the upper end face of the bottom plate, and a rocker arm placing area is formed between the first clamping plate and the second clamping plate. Pressing plates are arranged on the side walls, forming the rocker arm placing areas, of the first clamping plate and the second clamping plate correspondingly, a first positioning plate and a second positioning plate are arranged at the side wall ends, away from the pressing plates, of the first clamping plate and the second clamping plate correspondingly, a first air cylinder is installed on the first positioning plate, and a second air cylinder is installed on the second positioning plate; a piston rod of the first air cylinder is connected with the first clamping plate, and a piston rod of the second air cylinder is connected with the second clamping plate. Drilling of oil holes in the two ends of the rocker arm can be completed at a time, repeated disassembly and assembly are not needed, meanwhile, air cylinder jacking is adopted, operation is easy and labor is saved, the efficiency is improved by 2-4 times compared with a single-hole machining mode, and the production period is greatly shortened.

The utility model relates to a device for assisting in improving negative pressure to quickly suck and remove broken nucleus of cataract, which comprises a suction head, a filter tube body, a filter screen and a flow limiting element, the inlet end of the front end of the filter tube body is connected with the suction head, and the outlet end of the rear end of the filter tube body is connected with a negative pressure suction device. A flow limiting element is further arranged between the outlet end of the rear end of the filter pipe body and the negative pressure suction device, and a filter screen is installed in the filter pipe body. The aperture of a single hole of the filter screen is smaller than the inner diameter of the flow-limiting element, and the inner diameter of the suction head is larger than that of the flow-limiting element. The device has the advantages that the flow limiting element is designed and mounted on the rear side of the suction head, and the inner diameter of the suction head is larger than that of the flow limiting element, so that the problems that the anterior chamber in the eyeball is unstable, shallower, disappears and the like under the condition of overhigh negative pressure can be prevented, and the operation is safe and reliable; meanwhile, the filter screen is designed on the filter pipe body, and the pore diameter of the filter screen is smaller than the inner diameter of the flow limiting element, so that broken nuclei are filtered and collected, and the problem of low negative pressure suction efficiency caused by blockage of the flow limiting element by overlarge broken nuclei is prevented.

The utility model relates to the technical field of channel body assembling, in particular to a multi-channel single-hole channel assembling machine which comprises a machine frame, a disc assembly is installed on the surface of the machine frame, and an assembling mechanism is arranged on the surface of the machine frame and located on the outer side of the disc assembly. A channel body feeding mechanism, a choke valve feeding mechanism, a sealing ring feeding mechanism and a channel upper cover feeding mechanism are sequentially arranged on the outer side of the machine frame in the circumferential direction, and a defective product discharging line is further arranged on the surface of the machine frame. According to the automatic feeding device, four parts including the channel body, the choke valve, the sealing ring and the channel upper cover can be sequentially and automatically fed, whether neglected loading exists or not can be visually judged through the choke valve and the sealing ring, ultrasonic welding is conducted after loading is completed, then silicone oil is sprayed for lubrication, and finally finished products are discharged; all actions of the device are automatically realized, no personnel is needed, the efficiency is improved, the precision is improved, and the production cost is reduced.

The application belongs to the field of aircraft design, and particularly relates to a stress intensity factor acquisition method, device, equipment and storage medium, which comprises the following steps: determining a crack initiation mode of a hole edge crack, calculating a stress intensity factor correction coefficient beta1 of a single hole edge crack by calling a finite element software and using a fitting function method; calculating a stress intensity factor correction coefficient beta2 of a double hole edge crack by calling the finite element software and using the fitting function method; obtaining a crack tip stress intensity factor correction coefficient beta3 under the influence of a side hole according to an analytical method; obtaining left and right crack tip stress intensity factor correction coefficients beta4 and beta5 under the influence of a side crack according to the analytical method; and calculating a stress intensity factor of the hole edge crack according to a combined multiplication formula stress intensity factor. The application is aimed at solving the stress intensity factor of a multi-hole and multi-crack structure of an aircraft, and different solving methods are respectively given for different boundary conditions.

The invention discloses a method for determining blasting parameters of a pre-splitting hole in pre-splitting blasting. The method comprises the steps that the blast hole diameter, the charge non-coupling coefficient, the charge density, the blast hole density coefficient and the blast hole length of the pre-splitting hole are determined; according to the blast hole diameter of the pre-splitting hole and the charge non-coupling coefficient, the charge diameter of the pre-splitting hole is obtained; according to the charging diameter and the charging density of the pre-split hole, the linear charging density of the pre-split hole is obtained; according to the linear charge density of the pre-splitting hole and the length of the blast hole, the single-hole charge amount of the pre-splitting hole is obtained; according to the single-hole explosive charge / linear charge density of the pre-split holes, the pitch of the pre-split holes is obtained based on the blast hole density coefficient and the pre-split blasting unit consumption; and the filling length and the charging structure of the pre-split holes are obtained according to the pitch of the pre-split holes. By means of the calculation method, the design threshold of presplitting hole parameters in presplitting blasting is lowered, and the blasting success rate of primary design (or one-time engineering) is remarkably increased.

The utility model provides a kind of bill binding and punching device, it is related to binding and punching equipment technical field, including main frame body, aperture module and side extension support, the upper part of main frame body is vertically slidably connected with aperture module, the lower part of aperture module is provided with side extension support, the middle part of side extension support is rotatably connected with extension threaded rod, the first end of side extension support is slidably connected with first connection swing frame, the lower part of side extension support is rotatably connected with extension drill chuck, the first end of side extension support is fixedly connected with sliding slot connecting frame, the middle part of sliding slot connecting frame is slidably connected with middle transfer shaft support, and the lower end of middle transfer shaft support is circumferentially rotatably connected with gear. Extension drill chuck and main drill chuck synchronous rotation carry out punching operation to bill, can complete double-hole opening once, compared with the single hole of traditional single-hole equipment, punching efficiency is improved by more than 1 times, solve the problem that traditional equipment is single drill chuck design, efficiency is difficult to meet high-frequency demand.

1. The name of the design product: tunnel door hole (arch beam single hole). 2. The use of the design product: for tunnel door hole decoration. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view. 5. The back of the design product is not easy to see or not visible during use, omit the rear view.

The support comprises a support body, a plurality of single-hole supports are arranged on the support body, battery containing grooves are formed in the single-hole supports, and pole welding holes communicated with the battery containing grooves are further formed in the outer sides of the single-hole supports. A pole column welding hole is formed in the single-hole support, pole column flanges are arranged in the circumferential direction of the pole column welding hole, the pole column flanges are connected with the single-hole support through isolation flanges, the circumferential side of the pole column welding hole is divided into three or four fan-shaped areas by the isolation flanges, a fan-shaped partition plate is arranged in each fan-shaped area, and at least two fan-shaped partition plates are detachably connected with the single-hole support. The utility model has the beneficial effects that the insulation of the positive electrode and the negative electrode is realized through the arrangement of the pole flanges and the fan-shaped partition plates, and the selection of a positive electrode welding area is realized through selectively detaching the fan-shaped partition plates, so that the adjustment of different bus-bar wiring modes is realized, and the universality of the bracket is improved.

The utility model relates to the technical field of slope protection, in particular to a slope drainage device which comprises a drainage channel body and a covering assembly. The covering assembly comprises a filtering pore plate, an inserting block, an embedding block, a clamping component and a covering component; the filter pore plate is arranged on one side of the drainage channel body, the insertion block is connected with the filter pore plate and located on one side of the filter pore plate, the embedded block is rotationally connected with the insertion block and located on one side of the insertion block, the clamping component is connected with the embedded block, and the shielding component is connected with the embedded block. According to the drainage channel surface filtering mechanism, a plurality of independent pore plates can be associated together through arranged components, so that the overall stability of the drainage channel surface filtering mechanism is enhanced, and the influence on normal driving and use caused by looseness of a single pore plate is avoided.

1. The name of the design product: handle (2711 - single hole). 2. The use of the design product: handle for installation on furniture. 3. The design features of the design product: in shape. 4. The picture or photo that best indicates the design features: perspective view.

The invention provides three-dimensional wave-absorbing honeycomb forming equipment. The three-dimensional wave-absorbing honeycomb forming equipment comprises a material table; the portal frame is arranged above the material table in a spanning mode. The numerical control displacement module is fixed to the portal frame and used for driving the machine head to move relative to the material table top. The prefabricated body storage bin is communicated with the machine head through a prefabricated body conveying module; the assembling turntable module is arranged between the prefabricated body storage bin and the prefabricated body conveying module and is used for driving the prefabricated body storage bin to be aligned with the prefabricated body conveying module; the honeycomb morphology feature detection module is fixed with the machine head and is used for generating a feeding track arrangement diagram; and the machine head puts preforms into the to-be-processed wave-absorbing honeycomb according to the feeding track arrangement diagram. By implementing the method, single holes in the wave-absorbing honeycomb can be subjected to shower coating, effective 2D plane electromagnetic separation surface design is formed, and the implementation reliability of a 3D electromagnetic separation surface design process is displayed; the problems of limitation of a traditional technology and errors of manual machining are solved, and the equipment blank in the technical field is filled up.

1. Name of the product in this design: Seat Cushion (Portable Single-Hole Breathable Type). 2. Purpose of this design: To provide a place for people to sit and relieve hip fatigue. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1. 5. The bottom view has been shown in the perspective view 2, so the bottom view is omitted.

1. Name of the designed product: single hole tap (safety). 2. Use of the designed product: for controlling water flow size and switching. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view.

The invention discloses an air suction valve group, a compressor and refrigeration equipment, and relates to the technical field of compressors. The air suction valve set comprises a valve body and a valve block, the valve body is connected with the valve block, two reeds of the valve block are connected into the notch of the body through fixed sections, and the free sections of the reeds can cover the air suction holes in the valve body. The number of the reeds is two, the number of the air suction holes is two, and the air suction amount is larger than that of a single-hole scheme. As the inner edges of the two reeds are close to each other and the outer edges of the two reeds are close to each other and then far away from each other, namely, the width of the fixed end is gradually increased, the overall rigidity is increased, the springback speed of the reeds is increased, the response speed of closing the air suction hole is higher, and then the backflow amount is reduced, so that the energy efficiency of the compressor is improved. And the width of the swing arm part is firstly reduced and then increased, and the rigidity of the swing arm part is lower than that of the fixed end, so that the opening resistance of the reed is reduced, the opening speed of the reed is increased, and the energy efficiency of the compressor can also be improved.

The aspirator for the single-hole thoracoscopic surgery comprises an aspiration head and a catheter, the aspiration head comprises a first aspiration portion and a second aspiration portion which are sequentially communicated in the aspiration direction, the inner diameter of the first aspiration portion is gradually increased in the aspiration direction, and the first aspiration portion is formed by jointly enclosing a closed face and a hole opening face. Three suction holes are formed in the perforated surface, and are arranged at intervals in the circumferential direction of the perforated surface; the inner diameter of the second suction part is gradually reduced in the suction direction, and the second suction part is communicated with the negative pressure device through a catheter. According to the utility model, the layout of the suction head is optimized, the first suction part is enclosed by the closed surface and the perforated surface, and the perforated surface is provided with the suction holes which are simple in number and reasonable in layout, so that an enough suction area is ensured, unnecessary air leakage channels are reduced, and the air leakage risk is reduced.

1. Name of the designed product: faucet (Zhenghua single hole). 2. Use of the designed product: for faucet body. 3. Design points of the designed product: in shape. 4. Picture or photo that best indicates the design points: perspective view.

1. The name of the design product: basin faucet (KC02 auspicious single hole). 2. The use of the design product: used in kitchen and bathroom to control the size, opening and closing of water flow. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The application provides a grouting construction method for medium-sand dolomite gushing confined water, which comprises the following steps: firstly, a drilling machine is used to drill a hole through a sectioned orifice pipe, when the single-hole water inflow is greater than or equal to 40 m 3 / h, a short pipe and a long pipe are connected with a water plugging plate core pipe, and the short pipe is connected with a grouting pipe; secondly, a double-liquid double-injection process is used to inject a double-liquid slurry into the gap between the pipe bundle and the hole through the short pipe; finally, after 6-8s of the double-liquid slurry, a single-liquid single-injection process is used to inject a single-liquid slurry through the long pipe, the injection pressure of the single-liquid slurry is continuously increased, the single-liquid slurry is infiltrated into the stratum by using the long pipe wall grouting divergent hole under the continuous action of the pressure, and an effective water interception curtain and an advanced pre-support system are formed. The method solves a series of problems, such as pressure attenuation, slurry backflow, limited range, long time consumption and limited pressure, which exist in the traditional construction. The method belongs to the field of tunnel engineering construction.