22 results about "Middle column" patented technology

The application discloses a mechanical locking type tibial platform, a tibial prosthesis and a knee joint prosthesis. The mechanical locking type tibial platform comprises a platform holder used for being attached to the proximal end of a tibia, a middle column extending downward along the center of the platform holder and used for being inserted into the marrow cavity of the tibia, an axial hole being arranged in the center of the middle column, a sleeve arranged in the axial hole of the middle column, a limiting structure being arranged on the outer wall of the sleeve, the limiting structure being configured to cooperate with the middle column to enable the sleeve to slide only in the axial direction of the axial hole, a fastener connected to the sleeve and protruding from the outer side wall of the middle column and used for being inserted into the cortical bone of the tibia, and a stand column, one end of the stand column being provided with a limiting block used for abutting against the top surface of the platform holder, and the other end of the stand column being provided with a threaded segment which is threadedly connected to the inner wall of the sleeve. The cooperation of the stand column, the sleeve and the fastener can lock the platform holder to the proximal end of the tibia and ensure the initial stability of the tibial platform.

A tree-shaped special column and cantilever connecting structure and its construction method, the bottom of which is erected on a main structure, the main structure including front and rear rows of frame columns, the connecting structure including a tree-shaped column and a cantilever connecting structure, the tree-shaped column including a group of tree-shaped column units continuously arranged on the column shafts of the rear row of frame columns and connected as a whole, and the cantilever connecting structure being a double-layer support frame arranged in two parts, including low and high supports according to the height of the arrangement position, and the low support being fixedly connected with the tree-shaped column unit. Two rows of columns are designed on the rear side, the top end structure of the middle column is designed as a three-dimensional tree-shaped special column, the rear side of the beam string structure is supported, the large bending moment of the rear side support is balanced, and the steel structure of the roof is satisfied with the super-dangerous large project. The permanent double-layer cantilever structure is designed on the side of the column, the bending bearing capacity of the structure is effectively increased, the stability and safety are improved, and the structure is more stable and safe.

The invention provides a cold-formed section steel module building which comprises a bottom unit arranged in a use place according to needs and connected with a foundation through a plurality of first fixing pieces; the plurality of corner columns are respectively connected with the bottom unit, and the plurality of corner columns are respectively connected with the foundation through second fixing pieces; the plurality of middle columns are arranged on the bottom unit and between the adjacent corner columns, and the plurality of middle columns are connected with the plurality of first fixing pieces respectively; the cross beams are arranged between the adjacent corner columns and the adjacent middle columns and are connected with the corner columns and the middle columns through a plurality of third fixing pieces; the top units are respectively arranged on the plurality of corner columns and the plurality of middle columns and are respectively connected with the plurality of corner columns and the plurality of middle columns through a plurality of fourth fixing pieces; according to the cold-formed steel module building, a multi-dimensional fixing system and a collaborative bearing overall frame are formed, the structural connection reliability, the lateral displacement resisting rigidity and the living safety are remarkably improved, and the construction flexibility and the multi-module-group suitability are enhanced.

The utility model discloses a prefabricated frame beam and column connecting structure which comprises a middle column, the left side and the right side of the middle column are connected with prefabricated beams, the prefabricated beams are anchored in the middle column through anchoring steel bars preset in bodies, and anchoring sections are formed; an adjustable connecting assembly is arranged in the anchoring section; the adjustable connecting assembly comprises a left straight thread sleeve and a right straight thread sleeve, a connecting sleeve is arranged between the two straight thread sleeves, the left side and the right side in the connecting sleeve are connected to the corresponding straight thread sleeves through hexagonal head bolts respectively, and the outer sides of the left straight thread sleeve and the right straight thread sleeve are connected with the corresponding anchoring steel bars respectively. By means of the gap between the connecting sleeve and the two hexagonal heads and the adjustable length of the bolt, the anchoring ribs on the two sides are connected into a steel bar with the same tensile strength or the same compressive strength, and the anchoring requirement in a column is met.

The utility model discloses a reinforced center pillar splicing structure which comprises a center pillar assembly and a first glass plate, the first glass plate is arranged on one side of the center pillar assembly, and the area of the first glass plate is larger than or equal to 3.5 square meters; the middle column assembly comprises a first sectional material, a broken bridge piece and a second sectional material which are connected in sequence, and further comprises a reinforced sectional material which is connected with the first sectional material. The reinforcing section bar is additionally arranged on the middle column assembly, the strength of the middle column assembly is improved, stress is better, deformation is not prone to occurring, and assembling of the first glass plate is more stable.

The application relates to an underground space structure of an inertia-enhanced resonant tuned mass and a seismic isolation method. The underground space structure comprises a top plate, a bottom plate, side walls, middle columns and an inertia-enhanced resonant tuned mass periodic substructure. The top plate, the bottom plate and the side walls constitute the main body of the underground space structure, and the middle columns are arranged between the top plate and the bottom plate. Grooves are formed in the side walls and the middle columns, and the inertia-enhanced resonant tuned mass periodic substructure is arranged in the grooves in a vertical segmented mode. The periodic substructure comprises a translational column body and an inertia-enhanced resonant tuned mass unit. The translational column body is freely translational in the groove, and the two sides of the translational column body are connected to the two side surfaces of the groove through the resonant tuned mass unit. The resonant tuned mass unit is selected from one or more series-parallel connections of a tuning part, a damping part and an inerter part. Compared with the prior art, the application realizes the synergistic energy absorption and consumption and the common control of the middle column and the side wall response under the action of multi-level seismic vibration.

The utility model provides an end cover connecting structure of a food material grinder, which comprises a middle column, a first ring groove, a second ring groove, a connecting piece and a connecting piece, and is characterized in that the outer wall of one end of the middle column is provided with a first ring groove; the positioning base is arranged at the end of the middle column in a sleeving mode and is in sliding connection with the middle column, a plurality of through holes are formed in the circumferential direction of the positioning base, and when the positioning base slides on the middle column, the through holes can move to the positions flush with the first ring groove; the limiting steel ball is mounted in the through hole and is flush with the position of the first ring groove in the through hole; the top cover is reasonable in design structure, the limiting steel ball can move between the first annular groove and the second annular groove by controlling the position of the button, and therefore the opening and locking effects of the top cover can be achieved, the problems that cover opening and closing are tedious and the top cover is prone to being opened due to a traditional thread structure and a traditional buckle structure are solved, and practicability is high. The cover opening operation is simple, and the structure is stable when the cover is closed; and the bottom cover is limited by the spring plunger, so that the device has the advantages of simplicity in operation and stable structure.

The embodiment of the utility model provides a clamping assembly and a hemostatic clip, and relates to the technical field of medical instruments. The clamping assembly comprises a clamping seat, a middle column, a first clamping piece and a second clamping piece, the middle column is arranged on the clamping seat, and the first clamping piece and the second clamping piece are rotatably connected to the middle column, so that the clamping assembly has a closed state and an open state; in the closed state, the far end of the middle column, the far end of the first clamping piece and the far end of the second clamping piece are arranged at intervals in the extending direction of the middle column at the same time, and the far end of the middle column is located on the side, close to the clamping base, of the far end of the first clamping piece and the far end of the second clamping piece. In the open state, the far end of the middle column and the far end of the first clamping piece can abut against the tissue at the same time, or the far end of the middle column and the far end of the second clamping piece can abut against the tissue at the same time. According to the clamping assembly, the mucous membrane damage problem caused by the fact that the middle column is too long can be avoided, the punching risk is reduced, and the clamping safety is improved.

The invention relates to a coaxiality detection tool, which comprises a side column, a middle column, a pointed column and a positioning end, the positioning end is cylindrical, the side column, the middle column and the pointed column form a detection end, the side column is fixedly connected with the left side end of the middle column, the pointed column is fixedly connected with the right side end wall of the middle column, the side column, the middle column and the pointed column are cylindrical, the sizes of the side column, the middle column and the pointed column are sequentially decreased, and the left side end wall of the side column is fixedly connected with a handle. The coaxiality testing fixture has the beneficial effects that when the coaxiality testing fixture is used, the supporting rod can be rotated, the supporting rod and the stud opening are in threaded transmission displacement, the position of the supporting rod is changed, at the moment, the assembling strips at the connecting holes are rotated, the assembling strips are taken down, then the assembling strips are screwed into the rod holes of the supporting rod, the four rod holes are formed, the four assembling strips can be conveniently connected, and the coaxiality testing fixture is convenient to use. The four assembling strips are annularly distributed at the end of the supporting rod at equal intervals, and when supporting is needed, the end wall of the supporting rod is matched with the four assembling strips to form stable supporting, so that the supporting height of the whole inserting column and the supporting column is changed, and the inserting column and the supporting column are stable in use and convenient to adjust.

The utility model provides an assembling device for a column rod in a sprue cup, which comprises a box body, a first positioning plate and a second positioning plate, the first positioning plate is horizontally fixed on the inner side wall of the middle part of the box body, and the second positioning plate is horizontally fixed on the inner side wall of the lower part of the box body; a plurality of first positioning holes are formed in the first positioning plate, a plurality of second positioning holes are formed in the second positioning plate, and each second positioning hole corresponds to one first positioning hole and is coaxial with the first positioning hole; the size of the first positioning hole is matched with the small end of the pouring cup, and the size of the second positioning hole is matched with the diameter of the middle column rod. According to the utility model, the sprue cup is positioned through the first positioning hole, the middle column rod is positioned through the sprue cup and the second positioning hole, and the first positioning hole and the second positioning hole are correspondingly coaxial, so that the coaxiality of the sprue cup and the middle column rod and the consistency of each assembly are ensured; the assembly of a plurality of groups of pouring cups and a middle column rod can be realized, and the assembly efficiency is improved.

The invention relates to the technical field of underground structure assembly type center pillar structures, and discloses an assembly type station supporting center pillar structure and a construction method thereof. The center pillar comprises a center pillar concrete body and an ECC jacket connecting section prefabricated at the bottom, a full-grouting sleeve and a strain monitoring element used for monitoring the stress state are pre-buried in a jacket, and an interface bonding reinforcing structure is arranged. During construction, a full grouting sleeve, a strain monitoring element and the like are pre-arranged in a mold in a factory, ECC is poured to form a jacket, then center pillar steel bars penetrate into the jacket, and concrete is poured to form an integral prefabricated part; and connecting with a base through sleeve grouting on site, and starting a monitoring system. By means of the ECC jacket structure, high ductility, strong interface collaboration and stress state real-time monitoring of the middle column connecting area are achieved, and the anti-seismic property and construction efficiency of the middle column can be improved.

According to the column formwork building block, the shell column and the composite shell column construction method, construction is convenient and efficient, formwork erecting and formwork disassembling are not needed during on-site assembly, the construction period is greatly shortened, and the labor cost is reduced; the upper-layer building blocks and the lower-layer building blocks are spliced through combed joint structures, so that the longitudinal connection strength is enhanced; a right angle is formed by splicing the 45-degree inclined planes, and a bolt and a corner connecting piece are matched for fixing, so that the splicing part is firm; the first center pillar formwork building blocks and the second center pillar formwork building blocks are alternately spliced and vertically inserted, and the longitudinal protrusions and the notches are matched, so that a stable cross-shaped cavity structure is formed, and the integrity and the shear resistance of a pillar body are enhanced.

1. Name of the designed product: middle column component. 2. Use of the designed product: column of table. 3. Design points of the designed product: in shape. 4. Picture or photo that best shows the design points: front view.

The utility model discloses a metal oil drum with a pressure-resistant structure, which comprises a drum body and an outer convex ring, the outer convex ring is arranged on the outer wall of the drum body, a drum top and a drum bottom are respectively and fixedly arranged on the top surface and the bottom surface of the drum body, a middle column is arranged in the drum body, a top plate and a bottom plate are welded on the top surface of the middle column, and the bottom plate is welded on the bottom surface of the middle column. The surface of the middle column is fixedly connected with inner ribs through supporting rods. The utility model has the beneficial effects that the middle column, the supporting rods and the inner ribs are integrated, the top surface and the bottom surface of the middle column are fixedly connected with the top plate and the bottom plate respectively to play a central supporting role and improve the vertical compression resistance of the barrel body, the middle column is fixedly connected with the inner ribs through the supporting rods, and the inner ribs abut against the inner wall of the barrel body to play a lateral supporting role, so that the vertical compression resistance of the barrel body is improved. The lateral pressure resistance of the barrel body is improved, the pressure resistance of the barrel body is improved in all directions, the use stability is improved, meanwhile, after the barrel body is scrapped, a worker can open the barrel top or the barrel bottom and take out the top plate, the bottom plate, the middle column and the inner ribs for repeated use, and material waste is reduced.

The utility model provides a size's table case support structure of adjustable, including middle column and the side column of setting in the both sides of middle column, be provided with the moving mechanism for the side of auxiliary side column to the side of moving away or close to middle column between middle column and side column, be provided with first moving plate on the middle column, there is moving device for the first moving plate of auxiliary first moving plate along the height direction of middle column moves between middle column and first moving plate, moving device includes the screw rod of fixing in one side of middle column and the nut of fixing in one side of first moving plate, screw rod passes through nut and is connected with the nut screw thread, the top fixed setting of screw rod has the rotation block of driving screw rod rotation, this table case support structure can accurately adjust the distance between side column and middle column, thereby improve the stability that support table case supports.

The invention discloses an underground space single-arch double-column umbrella-shaped supporting structure and an underground excavation construction method. The underground space single-arch double-column umbrella-shaped supporting structure comprises a top arch, a top longitudinal beam, a bottom arch, a bottom longitudinal beam, a plurality of rows of stand columns and a reverse middle plate arranged between the top arch and the bottom arch. Partial side plates belonging to the underground space are arranged between the two sides of the reverse middle plate and the two sides of the top arch. Primary support structures are arranged on the side plates of the underground space above the reverse middle plate and the upper surface of the top arch; arch foot longitudinal beams are arranged on the two side edges of the top arch; pilot tunnels are independently formed in the structure from the middle plate to the top arch and the connecting position of each row of stand columns and the bottom arch for construction; the pilot tunnel of each stand column from construction of the reverse construction middle plate to the top arch is constructed to the pilot tunnel of the connection position of the corresponding stand column and the bottom arch through manual hole digging piles. According to the method, the problems that arching is difficult through a single-arch arch cover method under the shallow soil covering stratum condition, a middle stand column node in a double-arch single-column arch cover method is prone to instability, and water is prone to accumulating in a V-shaped node can be solved.

This utility model relates to the field of support and hanger technology, specifically a prefabricated support and hanger. It includes at least three vertically parallel support columns, each comprising two side columns on either side and several middle columns between the two side columns. Each side column has an inward-facing "L"-shaped connector detachably mounted on it, and each middle column has two outward-facing "L"-shaped connectors detachably mounted on it. The "L"-shaped connectors are vertically adjustable. A crossbeam is provided between each pair of adjacent support columns, resting between the two "L"-shaped connectors. The bottom of the crossbeam is fixedly connected to the "L"-shaped connectors by bolts. This structure distributes the supporting force of the crossbeam to the "L"-shaped connectors on both sides, effectively allowing the "L"-shaped connectors to support the crossbeam. This method is more stable, has a higher safety factor, and does not involve the interlocking of teeth, thus lowering installation requirements.

The utility model discloses an eccentric gluing head based on a drip chamber station of an infusion apparatus assembling machine, which comprises a butt joint cylinder with a cylindrical end and one end integrally formed, a middle column is movably sleeved at one end of the butt joint cylinder, a thin end is integrally formed at one end of the middle column, and a separation column is integrally formed at the other end of the middle column. And a gluing head which is eccentrically arranged is integrally formed at one end of the separation column. The axial direction of the gluing head and the axial direction of the middle column are eccentrically arranged in parallel, and when the axial direction of the middle column and the axial direction of the infusion hose are coaxial, the gluing head is inserted into the infusion hose, so that the axial direction of the gluing head and the axial direction of the infusion hose are eccentrically arranged, the gluing head is in linear contact with the inner wall of the infusion hose, and then the gluing head rotates by one circle; and glue on the surface of the gluing head is uniformly smeared on the inner wall of the infusion hose, so that the drip chamber and the infusion hose are firmly bonded, and the sealing performance is good after bonding.

The application discloses a through-type anchor rod supporting system for a cow nose roadway and a supporting method thereof, and aims at the problem that a middle column wall in the cow nose roadway is discontinuous in stress and prone to local instability, the application proposes that a plurality of hollow grouting anchor rods are arranged horizontally and penetratingly along the thickness direction of the middle column wall, and the two ends of the anchor rods extend to the spaces of the two side roadways; a tray, a fastening nut and a connecting component interface are installed at the ends, and the ends of the upper and lower adjacent anchor rods are rigidly connected through long straight connecting rods to form a spatial truss type connecting network; and a grouting and reinforcing assembly is used for grouting into the hollow cavities of the anchor rods and the surrounding rock cracks to form a grouting and reinforcing area. Finally, the through-type grouting anchor rod, the spatial connecting assembly and the reinforced middle column wall jointly form a spatial closed whole cooperative bearing structure. The application changes the traditional point-like isolated anchoring into three-dimensional spatial net-like bearing, actively pre-tightens and transmits stress to deep surrounding rock, effectively inhibits early deformation and damage of the surrounding rock, is convenient to construct and is economical and practical.

1. Name of the designed product: profile (middle column). 2. Use of the designed product: material for manufacturing doors and windows. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view. 5. Other circumstances or explanations: the product is of indefinite length.

The utility model discloses a flexible support middle column supporting structure capable of improving stability and wind resistance, the structure comprises a middle column, a longitudinal supporting structure and a fork supporting structure, the longitudinal supporting structure comprises a longitudinal supporting rod and a longitudinal supporting rod support, one end of the longitudinal supporting rod is installed on a first lug plate above the middle column, and the other end of the longitudinal supporting rod is installed on a second lug plate above the middle column. The other end of the vertical supporting rod is mounted on a third lug plate of the vertical supporting rod support; the fork support structure comprises a fork support long rod, a first fork support short rod and a second fork support short rod, one end of the fork support long rod is installed on a first lug plate above one middle column, the other end of the fork support long rod is installed at the bottom of the other adjacent middle column, and a fifth lug plate at one end of the first fork support short rod is installed at the bottom of one middle column; a sixth lug plate at one end of the second fork support short rod is installed on the first lug plate above the other middle column, and the other end of the first fork support short rod and the other end of the second fork support short rod are welded to the fork support long rod. The overall stability and wind resistance of the flexible support system can be improved, and the reliability of the flexible support system in a complex mountain environment is ensured.

The utility model relates to the technical field of medical instruments, and discloses an anchor device for closing a wound notch in an endoscopic premature cancer dissection operation. The device comprises a spiral upper structure, a middle straight rod structure, a round separation blade, a rotatable middle column body and a bottom structure. The spiral upper structure is formed by spirally winding a metal wire, and the top end of the spiral upper structure is pointed cone-shaped; the middle straight rod structure is connected with the bottom end of the spiral upper structure; the round separation blade is arranged at the joint of the middle straight rod structure and the spiral upper structure; the rotatable middle column body is arranged on the middle straight rod structure in a sleeving manner, can rotate freely and is provided with a rope threading hole; the bottom structure is connected with the bottom end of the middle straight rod structure and comprises an upper wafer and a lower cube, and a circular groove is formed in the middle of the lower cube. Through the unique structural design, the efficiency and the reliability of closing the notch of the wound surface in the endoscopic premature cancer dissection operation are improved, and meanwhile, the convenience of the operation and the safety of a patient are both considered.