136results about How to "Avoid loose fixation" patented technology

The invention discloses a telescopic and fixation-type endoscope puncture device. The telescopic and fixation-type endoscope puncture device comprises a tube cavity, a tube cavity base, a pneumoperitoneum port, a base sheet, M upper rotary buckles, M lower rotary buckles, N arc strutting pillars, N strutting petals, N strutting petal buckles, an outer core, an outer core base, N groove holes, a cutting part, an inner core, an inner core base and N rotary clamping grooves; the tube cavity comprises a tube cavity telescoping section and a tube cavity fixing section, the top of the tube cavity isconnected with the tube cavity base, and the two ends of the tube cavity telescoping section are connected with the tube cavity base and the tube cavity fixing section respectively. According to thetelescopic and fixation-type endoscope puncture device, through the arrangement of the tube cavity, the outer core, the inner core, the N arc strutting pillars, the N strutting petals, the N struttingpetal buckles and the N rotary clamping grooves, firm fixation of the interiors of the abdominal wall and the chest wall by the puncture device is achieved, and slip is avoided; meanwhile, the puncture length of the puncture device can be shortened, the situation that redundant tube cavity parts are left in the abdominal cavity and the chest cavity is avoided, convenience is brought to surgical operation, and precious time is saved.

The invention provides a sargassum horneri seaweed bed human-induced restoration device which comprises a secondary reef, an intermediate incubator and a primary reef, wherein the intermediate incubator comprises a protection body and a base; a cylindrical groove is formed in the center of the top surface of a base; the diameter of the protection body is the same as the diameter of the secondary reef and the inner diameter of the groove of the base; the secondary reef is arranged between the protection body and the base by virtue of the intermediate incubator; and the shape of the primary reef refers to two asymmetric triangular inclined surfaces which are connected with each other and are provided with connecting bolts and permeable holes. The invention also provides a sargassum horneri seaweed bed human-induced restoration method. The method comprises the following steps: performing seedling collection on the secondary reef, performing workshop cultivation, then cultivating in the intermediate incubator with a low tidal region between tides, fixing the secondary reef on the primary reef, and throwing into the seabed target restoration position. According to the device and method disclosed by the invention, the healthy and strong degree of seedlings can be enhanced, the probability of seedling removal is effectively reduced after the seedlings are put into the sea, and the survival rate of the seedlings at the seabed is improved; and moreover, the secondary reef is convenient to mount and detach, and even if the secondary reef is put into the seabed along with the primary reef, the secondary reef can be manually taken down, and later tracing observation is conveniently realized.

The invention relates to a device for measuring a blade tip clearance of a thin-walled case, and belongs to the field of aero-engines. The device comprises a sensor, a protective bush, a lead branch pipe and a measuring support; the front end of the sensor is provided with the protective bush; the protective bush extends into the thin-walled case and is used for the sensor to measure the blade tipclearance of rotor blades; the rear end of the sensor is installed on the lead branch pipe and penetrates out of the lead branch pipe; the protective bush is fixed to the thin-walled case in a pressfit mode through the lead branch pipe; and the lead branch pipe is fixed to a force-bearing case through the measuring support. According to the device for measuring the blade tip clearance of the thin-walled case, the sensor is fixed in the form of the lead branch pipe and the measuring support, so that the number of holes of the thin-walled case is reduced, the structural strength of the thin-walled case is ensured, the phenomenon that the sensor is non-firmly fixed due to excessively small lengths, matched with the case, of bolts is avoided, and the measuring range of the sensor and the reliability of an engine are expanded and improved.

The invention discloses a display module and a display device.The display module comprises a flexible display panel, a supporting layer and a composite functional layer, the flexible display panel comprises a plane part, a bent part and an extending part which are arranged in sequence, and the extending part is bent to the side where the back face of the plane part is located through the bent part; the supporting layer comprises a first supporting layer arranged on the back face of the plane part and a second supporting layer arranged on the surface of the side, facing the plane part, of the extending part. The composite function layer comprises a connecting layer and a metal layer which are arranged in a stacked mode in the direction perpendicular to the plane part, the connecting layer comprises a first connecting area and a second connecting area located on the side, close to the bent part, of the second connecting area, and the metal layer is connected with the second connecting area of the connecting layer. The first connecting area of the connecting layer connects the first supporting layer and the second supporting layer. According to the invention, the problem of unreliablefixation of the extending part caused by layering of a heightening block and difficult attachment of the metal layer can be avoided, and the structural reliability of the display device can be improved.

The invention relates to an adhesive-sealing discharging machine and an adhesive-sealing method for producing a relay, and belongs to the field of relay production equipment. In the prior art, an adhesive-sealing discharging machine has the defects that the amount of adhesive applying is hard to control, and cleaning and replacement of a dispensing needle are troublesome. The adhesive-sealing discharging machine for producing the relay comprises a dispensing mechanism, an adhesive applying tank, a three-axis moving platform, an adhesive-sealing discharging machine accompanying tooling conveying mechanism, an adhesive-sealing discharging machine accompanying tooling pushing mechanism, an adhesive-sealing discharging machine accompanying tooling shifting mechanism, an adhesive-sealing discharging machine accompanying tooling positioning mechanism and an adhesive-sealing t discharging machine base; the dispensing mechanism, the adhesive applying tank, the three-axis moving platform, the adhesive-sealing discharging machine accompanying tooling conveying mechanism, and the adhesive-sealing discharging machine accompanying tooling pushing mechanism are arranged on the adhesive-sealing discharging machine base; and the adhesive-sealing discharging machine accompanying tooling shifting mechanism and the adhesive-sealing discharging machine accompanying tooling positioning mechanism are arranged on the adhesive-sealing discharging machine accompanying tooling conveying mechanism. According to the adhesive-sealing discharging machine and the adhesive-sealing method for producing the relay, the adhesive applying position is more accurate, the amount of adhesive applying is easy to control, and the occurrence of excessive dispensing, miss-dispensing, and wrong-dispensing is avoided.

The invention discloses an inductive coil automatic assembling and bending device and method. The inductive coil automatic assembling and bending device comprises a first coil positioning block used for placement of a coil; a coil moving mechanism used for moving the coil on the first coil positioning block to a second coil positioning block; a magnetic core conveying line used for providing a magnetic core; a dislocating mechanism used for containing the magnetic core conveyed by the magnetic core conveying line and enabling the magnetic core to be aligned to or staggered with the coil; a magnetic core conveying mechanism used for pushing the magnetic core into the coil when the magnetic core on the dislocating mechanism is aligned to the coil on the second coil positioning block; a coil bending mechanism used for down-pressing a wire at the opening end of the coil on the dislocating mechanism and enabling the bending part to block the opening end; a coil pressing mechanism used for limiting the coil to the second coil positioning block; and a discharging mechanism used for moving the electromagnetic coil finished processing on the second coil positioning block into a product region. The inductive coil automatic assembling and bending device avoids the problem of unstable fixation of the coil and the magnetic core caused by gluing, is high in degree of automation and greatly increases the processing efficiency.

The invention discloses mobile equipment and a shell assembly thereof, and a mounting method for the shell assembly. The shell assembly comprises a front shell and a screen assembly, wherein a mounting cavity is formed in the front shell; an opening is formed in the front side of the mounting cavity; a first inclined part is arranged on the side wall, close to the opening, of the mounting cavity; the first inclined part extends in an inclined manner towards the direction of the inner bottom wall of the mounting cavity in a direction from the external to the internal of the mounting cavity; the screen assembly comprises a transparent cover board and a display screen; the transparent cover board is fixed on the front surface of the display screen; a second inclined part matched with the first inclined part is arranged on the circumferential wall of the transparent cover board; waterproof glue is arranged between the first inclined part and the second inclined part; and fixing glue and a fixing screen assembly are arranged between the back surface of the display screen and the inner bottom wall of the mounting cavity. According to the shell assembly of the mobile equipment, the frame width of the mobile equipment can be reduced; the narrow-frame design of the mobile equipment can be realized; the appearance of the mobile equipment can be optimized; and reliable fixation of the screen assembly can be achieved.

The invention discloses a multifunctional novel bee keeping box, which comprises a bee keeping box body, wherein the bee keeping box body is arranged on a supporting plate; the bottom of the supporting plate supports an electric cylinder; the top of the bee keeping box body is provided with a solar panel; a bottom plate of the bee keeping box body is provided with a reticular cooling plate; the supporting plate which just faces the cooling plate is provided with a cooling hole; the cooling hole is provided with an exhaust fan installed on the supporting plate; the bottom of the bee keeping boxbody is provided with a moisture absorption box; the side wall of the bee keeping box body is provided with a plurality of air holes. According to the multifunctional novel bee keeping box, temperature and humidity in the bee box can be effectively controlled, a warm and comfortable living environment is provided for bees, meanwhile, the bee box can be conveniently fixedly placed, and therefore,the bee box can be stably placed so as to bring convenience for the bees to produce honey; meanwhile, electric equipment can be supplied with electricity through solar energy, resources can be effectively utilized, and are saved, and the multifunctional novel bee keeping box has complete functions and is suitable for being practically used.

The invention discloses a feeding and discharging device for numerical control cutting equipment. The feeding and discharging device comprises a supply sliding bed, a discharging support and a supplysupport; a fixed plate is fixed to the upper portion of the rear side of the discharging support; a pressing rotary shaft is transversely installed on the fixed plate; a pressing toothed groove is formed in the rear end of the movable pressing plate; supply toothed chain racks are vertically installed at the front end of the discharging support and rotationally connected through a supply rotary shaft; a driven wheel is fixed to the middle of the supply rotary shaft; a sliding plate is installed on the supply support; a front fixing clamp base is arranged inside a rear base; clamping sleeves are symmetrically arranged on the front side and rear side of the bottom of the front fixing clamp base; an advancing gear is installed on an output shaft of an advancing motor; and a sliding bracket isarranged at the front end of the upper portion of the supply sliding bed. Through the supply sliding bed, the discharging support and the supply support, the problem that existing cutting equipment is low in degree of automation in the feeding and discharging processes is solved.

The invention discloses a spring grinding machine. The spring grinding machine comprises a first frame body, a partition board, a connecting shaft, a first motor pump set, a valve set, a first hydraulic cylinder, a grinding machine device, a connecting arm, a support base, a protection door, an oil tank, a water tank, a second motor pump set, a water injection nozzle, an abrasive dust separating device, an electric appliance cabinet and a through hole, wherein the input end of the first motor pump set is connected with the oil tank, the output end of the first motor pump set is connected with the input end of the valve set, the output end of the valve set is connected to the first hydraulic cylinder, the input end of the second motor pump is connected with the water tank, the output end of the second motor pump set is connected with the water injection nozzle, the first frame body is supported by the oil tank and the water tank, the abrasive dust separating device is arranged on the side face of the water tank, the partition board, the grinding machine device and the water injection nozzle are arranged inside the first frame body, the partition board is provided with the connecting shaft, the through hole and the water injection nozzle, the connecting arm and the support base are arranged on the connecting shaft, a piston rod of the first hydraulic cylinder is connected with the connecting arm in a rotary mode, and the protection door and the electric appliance cabinet are arranged on the first frame body.

The invention discloses an inner hole detecting device of a workpiece and a using method thereof, and a detection assembly line. The inner hole detecting device comprises a sorting mechanism arrangedbetween a workpiece waste area and a workpiece qualification area, a detection mechanism, and a determination mechanism. The sorting mechanism is driven to be inclined towards the workpiece waste areaor the workpiece qualification area. The detection mechanism includes a detection rod that is arranged at the sorting mechanism and is plugged with an inner hole of a to-be-detected workpiece cooperatively; and the detection rod has a measuring section corresponding to the inner hole dimension of a qualified workpiece. The determination mechanism is used for determining whether the measuring section is inserted into the inner hole; and the sorting mechanism is inclined based on the determination result of the determination mechanism, so that the workpiece enters the workpiece waste area or the workpiece qualification area. Therefore, a problem that the existing inner hole detecting device can not classify qualified and non-qualified workpieces automatically, simply, and quickly in the prior art is solved.

The invention discloses an aorta abdominalis covered stent. The aorta abdominalis covered stent comprises a covered stent and a bare stent, wherein the covered stent is of a cylindrical structure, comprises a covered fluid passageway and is used for being matched with the inner wall of an aorta abdominalis and suitable for expanding the aorta abdominalis. The bare stent is in a wavy shape and connected with the top end of the covered stent, and comprises crest structures away from the covered stent and trough structures close to the covered stent, and a fluid passageway is formed between each crest and the corresponding trough. The aorta abdominalis covered stent further comprises upper anti-disengagement fixing structures arranged on the crest structures and lower anti-disengagement fixing structures arranged on the trough structures, wherein the upper anti-disengagement fixing structures are used for being fixed to the portions, above a renal artery, of the aorta abdominalis, the lower anti-disengagement fixing structures are used for being fixed to the portions, below the renal artery, of the aorta abdominalis, and therefore the whole aorta abdominalis covered stent can be fixed into the aorta abdominalis.

The invention relates to a door reinforcing iron magnetic force fixing structure and a refrigerator. The door reinforcing iron magnetic force fixing structure comprises a door frame and reinforcing iron, the side wall of the door frame is provided with at least one first reinforcing iron fixing seat and multiple second reinforcing iron fixing seats, the first reinforcing iron fixing seats and the multiple second reinforcing iron fixing seats are evenly distributed along a straight line, the first reinforcing iron fixing seats are provided with positioning columns, the second reinforcing iron fixing seats are provided with magnets, the reinforcing iron is provided with positioning holes matched with the positioning columns, the reinforcing iron is arranged on the first reinforcing iron fixing seats and the second reinforcing iron fixing seats, the positioning columns are inserted into the positioning holes, and the reinforcing iron is adsorbed on the magnets. According to the door reinforcing iron magnetic force fixing structure and the refrigerator, positioning of the reinforcing iron can be achieved only needing to inserting the positioning columns into the positioning holes, then the reinforcing iron is adsorbed on the magnets arranged on the second reinforcing iron fixing seats, the installation process of screws and the like is omitted, the work intensity is reduced, the work time is saved, and the work efficiency is improved.

The invention is applicable to the technical field of computers, and provides a computer transport case. The computer transport case comprises a case body, a placement seat, at least two side plates and a cover door, wherein the case body is used for accommodating a computer body; the placement seat is arranged in the box body in a liftable manner and is used for supporting the computer body; theat least two side plates are arranged at the inner bottom of the case body in a sliding manner; the cover door is rotationally connected to the top of the case body and is provided with a locking structure; and the placement seat and the side plates are in transmission through a transmission part, and the placement seat is stressed to enable the side plates to be close to clamp the computer body through transmission of the transmission part. According to the computer transport case, fixing is conducted through the gravity of the computer body, manual clamping is avoided, fixing is convenient and fast, and stability is good; when the computer body is lifted upwards, the pressure on the placement seat disappears, the transmission force on the side plates disappears and is separated, and thecomputer body is convenient and quick to take; and the computer transport case has the advantages of being simple in structure, convenient to fix, good in stability, convenient to take and convenientto popularize and implement.

The invention discloses a hydroponic system for high-throughput maize roots. The hydroponic system comprises a cylindrical sponge, a culture plate, a culture plate round hole, a hydroponic tank, a main ventilating tube and a branch ventilating tube, wherein the cylindrical sponge is used for clamping a maize seedling and then plugged into the culture plate round hole in the culture plate, and the culture plate is horizontally located on the hydroponic tank filled with a nutrient solution; the branch ventilating tube comprises an L-shaped glass tube body, a rubber tube body and a needle head; the needle head is stuck in the main ventilating tube, one end of the main ventilating tube is connected onto an air compressor, the other end of the main ventilating tube is knotted to achieve a sealed effect, and the air output amount of the air compressor is adjusted. The hydroponic system solves the problems that research of soil culture or sand culture of maize roots is difficult, maize seedlings in general hydroponic systems are not firmly fixed and are prone to falling or lodging, the seedlings cultured in general hydroponic systems are few and cannot be applied to large-scale root research, the number of oxygen supply devices in general hydroponic systems is large, and the oxygen supply amount in general hydroponic systems is uneven.

A field sketch drawing rack for students including the first leg, a telescopic rod, a second leg, a drawing board and a screw rod are sleeve on that first leg, another telescopic rod is hinged above the telescopic rod, a second leg is sleeve below the other telescopic rod, the upper ends of the first leg and the second leg are rotatably connected with the drawing board, the upper end of the drawing board is rotatably connected with a turnover board, and the lower surface of the turnover board is fixedly connected with a magnet; a lower back surface of the drawing board is rotatably connected with an upper end of a connecting rod, a lower end of the connecting rod is rotatably connected with a sleeve, the sleeve is screwed with a screw rod, and a column is fixedly connected with a surface of a second leg. As the screw rod rotates to drive the sleeve to drive the connecting rod to drive the draw board to turn over and adjust the angle of the drawing board, the screw rod drive has the self-locking function, which effectively prevents the problem that the drawing board is not fixed securely. At the same time, a fixed clamping device and a locking block are arranged between the first leg and the second leg, so as to facilitate the storage of the drawing frame, and the drawing frame is stably connected after being stowed up, and is convenient to move and transport and carry.

The invention discloses a formaldehyde adsorption machine, which includes a formaldehyde adsorption machine body, an adsorption screen and a fixing box. The adsorption screen is arranged on the centerposition of the surface of the formaldehyde adsorption machine body. The formaldehyde adsorption machine body is arranged in the middle of the fixing box. A plurality of fixing columns are disposed on the surface of the bottom end of the fixing box. Position limiting plates are respectively connected to the surfaces of the top end and bottom end of the formaldehyde adsorption machine body. A movable column is arranged on the top end of each fixing column. The top end of each movable column is connected to the bottom surface of each position limit plate. Movable rods are symmetrically arrangedon the surfaces of the top and bottom of the fixing box. A movable board is connected to one end of each movable rod. Connection columns are respectively arranged on the four corners of the rear endof the fixing box. A gauze screen sleeves the outer side of a connection rod, then a position limiting piece is clamped and connected to the connection rod and the connection rod is rotated, then a position limiting column is embedded in a round-shaped groove in the side surface of a fixed piece. The gauze screen can cover the surface of the adsorption screen, so that problems of instability due to vibration during use and inconvenience of cleaning large dust particles of an air purifier are avoided.

The invention provides electroplating equipment and an electroplating method of a PCB. The electroplating equipment comprises a bottom plate, connection columns, a fixed mechanism, a top plate, a limiting mechanism, an electroplating device and a washing device. The electroplating equipment and method which are provided by the invention can solve the problems that in the electroplating process ofthe PCB with a special specification in the market, the wobbles due to being clamped unstably, and consequently the PCB is electroplated unevenly, and the subsequent using effect is affected; meanwhile, before electroplating, the surface of the PCB is likely to be contaminated due to artificial contact or other inevitable external factors, therefore, the contaminated local part fails to be electroplated or is liable to fall off in the using process after electroplating due to the influence of temperature and the like; and generally manual work for cleaning treatment of the surface of the PCB is laborious and low in efficiency, and due to manual contact in the cleaning process, the cleanliness of the surface of the PCB cannot be guaranteed, so that the subsequent electroplating quality is much affected.

The invention provides a hot stamping clamping device for a plastic plate, which relates to the field of plastic plate processing. The hot stamping and clamping device for plastic plates comprises a fixed bottom plate, a chute is provided on the top of the fixed bottom plate, a slide block is arranged inside the chute, the inner wall of the chute is slidably connected with the slide block, and the slide block A connecting block is fixedly connected to the top of the chute, a positioning block is arranged above the chute, and the side of the connecting block away from the locating block penetrates the chute and is fixedly connected with the locating block arranged above the chute. The hot stamping and clamping device for plastic boards can make the positioning block set on the top of the slider move left and right by sliding the slider inside the chute, so that the plastic board can adapt to plastic boards of different specifications, and through the fixed block set on the positioning block And the limit screw rod can limit the position of the positioning block, which effectively prevents the problem of the plastic plate not being firmly fixed, prevents the offset of the plastic plate, improves the precision of the bronzing, and improves the qualified rate of the processed workpiece.

The invention discloses a clamping device for machining a medical bur. The clamping device for machining the medical bur comprises a fixing table, a connecting sleeve is sleeved with one end of the left side of the fixing table, a groove is formed in the center of the right side of the fixing table, clamping grooves are symmetrically formed in the top and the bottom of the inner wall at the notchof the groove, a limiting mechanism is arranged on the right side of the inner cavity of the groove, and a supporting mechanism is arranged on the left side of the inner cavity of the groove; and first opening ports are symmetrically formed in the right side of the top of the fixing table and the right side of the bottom of the fixing table, the first opening ports are fixedly connected with fixing gaskets, and the inner rings of the fixing gaskets are provided with clamping mechanisms. The clamping device for machining the medical bur is used for fixing the bur from a plurality of angles anda plurality of directions, shaking and displacement of the bur during the machining are prevented, and a guarantee is provided for comprehensive machining of the bur; and the problem that an existingbur machining workbench fixing base is not stable to the bur, the clamp is needed to be added to prevent the bur from shaking, and inconvenience is brought to the overall machining of the bur is solved.

The invention discloses a 5G antenna device with a protection function, and relates to the technical field of 5G equipment. The antenna comprises a base, a wire rod is fixed to the top of the base, an antenna body is fixed to the top of the wire rod, a wire part of the antenna body is located in the wire rod, an adjusting device is arranged at the bottom of the base, a rainproof device is arranged on the outer side of the wire rod, and a protection device is arranged on the outer side of the antenna body. According to the invention, through the arrangement of the ceiling, the ceiling blocks rainwater, so that the problem that the rainwater directly sprays on the antenna main body to cause damage to the antenna due to erosion of the rainwater is avoided, and meanwhile, when wind blows, through the arrangement of the blades, the blades drive the through groove disc and the rotating disc to rotate, and the through groove disc drives the ceiling to rotate through the fixing rod; therefore, the rainwater falling on the ceiling is thrown out, and the problem that the rainwater falls on the ceiling and vertically drops on the antenna main body is avoided.

The invention discloses a capacitance-controlled electromagnetic computer mainboard fixing device, and relates to the technical field of computer mainboards. The capacitance-controlled electromagneticcomputer mainboard fixing device includes a fixing column, the inner bottom wall of the fixing column is movably connected with a conductive block; a dielectric plate is fixedly connected to the middle of the conductive block, a positive plate is fixedly connected to the inner wall of the bottom of the fixing column and close to the left side of the conductive block, a negative plate is fixedly connected to the inner wall of the bottom of the fixing column and close to the right side of the conductive block, and a resistor electrically connected with the negative plate is fixedly connected tothe inner wall of the bottom of the fixing column. According to the capacitance-controlled electromagnetic computer mainboard fixing device, an electromagnet is matched with a magnetic block II for use; when a host is used, at the moment, a circuit of the electromagnet is also in a power-on state, and the outer side of the electromagnet generates the same magnetism as the inner side of the secondmagnetic block, so that the second magnetic block can move outwards under the magnetic repulsion effect of the electromagnet, clamping of the positioning block and the positioning groove is enhanced,loosening of the mainboard is effectively prevented, the stability of the mainboard is improved, and normal use of the mainboard is guaranteed.

The invention discloses a multifunctional pinellia ternate sower which includes a machine frame, a gathering mechanism, a soil turning mechanism, a pushing-flat mechanism, a discharging mechanism, anda seed box. The gathering mechanism is installed at the most front end of the machine frame, the pushing-flat mechanism is installed at the position, on the rear side of the gathering mechanism, of the machine frame, the soil turning mechanism is installed at the position, on the rear side of the pushing-flat mechanism, of the machine frame, the discharging mechanism is installed at the position,on the rear side of the soil turning mechanism, of the machine frame, and the seed box is installed at the upper end of the most rear side of the machine frame. The multifunctional pinellia ternate sower is a sower specially made for pinellia ternate seeds, has more functions, can be applied to planting a variety of pinellia ternate seeds, and integrates sowing, burying and ridge sealing; and allparts are adjustable, springs can prevent a pushing-flat plate from bending so as to enable the pushing-flat plate to push soil flexibly, a thread arranged on the surface of a mounting shaft preventsa ridge separating device from being loosely fixed, by adjusting a reducer, the multifunctional pinellia ternate sower is applicable to different grades of pinellia ternate seeds, the work efficiencyis improved, the economic benefits are improved, and the labor intensity can be greatly reduced and time is saved.

The invention relates to a method for individualized customization of a sacrum reconstruction plate by 3D printing and the sacrum reconstruction plate. The method comprises the following steps: obtaining range simulation data of a to-be reconstructed sacrum and reconstructing lateral pelvic simulation data; performing smooth treatment and repair on a sacrum dorsal profile and outputting a first draft of the sacrum reconstruction plate; performing simulation matching in simulation software by utilizing data of a half pelvic prosthesis and first draft data of the sacrum reconstruction plate; designing a bolt base on the sacrum reconstruction plate; designing a metal mesh bone joint surface of 1 mm on the sacrum reconstruction plate bone joint surface; designing a nail hole in the sacrum reconstruction plate; forming a sacrum reconstruction plate blank; performing surgical simulation matching on the sacrum reconstruction plate serving as a finished product and the half pelvic prosthesis. The method provided by the invention has the benefits that the fixing of the half pelvic prosthesis can be enabled to a maximum degree, and the problem of infirm fixing caused as the sacrum or the pelvic prosthesis is propped against a surrounding soft tissue or a nail stick system for a spinal column is solved.

The invention provides a screw reinforcing fixing device for an osteoporotic patient. The screw reinforcing fixing device comprises a pedicle screw, an expansion fixing sleeve and a head film sleeve. The expansion fixing sleeve comprises an expansion fixing sleeve pipe body, a first expansion piece, a second expansion piece and a third expansion piece, wherein the first expansion piece, the second expansion piece and the third expansion piece are arranged on the head of the expansion fixing sleeve pipe body. The head film sleeve comprises a sealing film sleeve, an upper round rubber fixing ring and a lower round rubber fixing ring, wherein the upper round rubber fixing ring and the lower round rubber fixing ring are arranged on the sealing film sleeve. The first expansion piece, the second expansion piece and the third expansion piece are sleeved with the sealing film sleeve. An upper round groove is sleeved with the upper round rubber fixing ring, a lower round groove is sleeved with the lower round rubber fixing ring, therefore, the expansion fixing sleeve is firmly fixed to the spine, the pedicle screw is also installed more firmly, and the situation that the pedicle screw looses and is not firmly fixed is avoided.

The invention discloses an ocean construction seawater depth finder fixing device, and belongs to the technical field of ocean exploration, the ocean construction seawater depth finder fixing device comprises a fixing box, a depth finder main body is arranged in the fixing box, a transducer in a depth finder is located outside the fixing box, and one side of the fixing box is detachably connected with a pressing plate through a lifting structure; the bottom of the pressing plate is slidably connected with a fixing assembly used for vertically placing the transducer, the base is slidably connected with a clamping block, the clamping block is rotatably connected with a clamping transmission mechanism, the clamping transmission mechanism drives the clamping block to clamp the transducer, one side of the base is fixedly provided with a side plate, one side of the pressing plate is fixedly provided with an inserting plate matched with the side plate in an inserting mode, and the inserting plate is fixedly connected with the pressing plate. And the same pressing plate synchronously drives the clamping block and the inserting plate to finish the clamping and fixing action and the inserting and locking action respectively. It is guaranteed that an included angle is not generated between the transducer and the seabed, and the depth measuring accuracy of the depth finder is improved.