1667 results about "Wedge shape" patented technology

The anchor rod comprises a hollow rod body, a grouting channel is formed in the hollow rod body, and multiple sets of through grooves are evenly distributed in the peripheral side of the hollow rod body; the driving unit comprises a top shaft movably arranged in the hollow rod body, the axis of the top shaft is overlapped with the axis of the hollow rod body, the clamping arms are movably arranged in the corresponding through grooves, a top plate is fixedly arranged at one end of the top shaft, and the end, away from the top shaft, of the top plate is located on the outer side of the end of the hollow rod body; wedge-shaped blocks with the number corresponding to that of the multiple sets of clamping arms are fixedly arranged on the peripheral side of the top shaft, and the multiple sets of clamping arms extend out of the hollow rod body under the action of the corresponding wedge-shaped blocks. The through grooves evenly distributed in the peripheral side of the hollow rod body are matched with the clamping arms, when the anchor rod is installed, the clamping arms extend out of the hollow rod body under the action of the wedge-shaped blocks, the clamping arms can disperse and resist external force from different angles, and compared with a traditional anchor rod with the single anchoring direction, pulling resistance can be more effectively provided, and the stability of the anchor rod under the complex stress condition is enhanced.

The invention discloses a fabricated strain insulator string device for an overhead transmission line, and relates to the technical field of electric power fittings, a plurality of disc-shaped insulating covers are hinged between a first U-shaped clamp and a second U-shaped clamp, and the first U-shaped clamp is hinged to the corner of a wedge-shaped strain clamp; a front end wedge-shaped groove and a tail end wedge-shaped groove are formed in the wedge-shaped strain clamp, a plurality of pairs of arc-shaped clamping plates are arranged on the inner bottom wall of the front end wedge-shaped groove, a plurality of U-shaped threaded rods are arranged on the wedge-shaped strain clamp in a sleeving mode, a plurality of fixed connecting plates are fixedly arranged on the wedge-shaped strain clamp, and the U-shaped threaded rods penetrate through the fixed connecting plates and are locked with a pair of self-locking nuts in a threaded mode. And a T-shaped seat is fixedly arranged in the middle of the U-shaped threaded rod, and a pressing mechanism is mounted on the T-shaped seat. The device can be transported in a split mode and is adaptive to complex terrains; the arc-shaped clamping plate and the downward pressing mechanism clamp the power transmission line in a dual mode, adapt to power transmission lines with different diameters and prevent looseness. Components are detachable, installation and maintenance are convenient, cost is reduced, and efficiency and power supply reliability are improved.

The utility model discloses a window breaking hammer for double-layer laminated glass, which relates to the field of automobile safety instruments, and comprises a grab handle and a hammer head, the hammer head is provided with a tapered wedge-shaped part, the end part of the hammer head is provided with a conical tip, one side facing the grab handle is provided with a cutting structure for cutting a glue film, the glass is broken and punctured through the conical tip, so that the front section of the hammer head enters, and the glass is broken through the cutting structure. And then, the grab handle is rotated by taking the non-penetrating part of the hammer head as a fulcrum, and the tough middle adhesive film is efficiently cut by the cutting structure according to the slope lever principle, so that the escape hole is quickly formed. In addition, an auxiliary sharp corner structure can be arranged at the tail part of the hammer head to cooperatively destroy the adhesive film; and a safety belt cutting device and an anti-falling flange are integrated on the grab handle or the hammer head, so that the multifunctionality and the operation safety are enhanced. The window breaking device solves the key problem that a traditional window breaking device cannot effectively process a laminated glass middle film, and is particularly suitable for automobile emergency window breaking escape.

The utility model discloses a precision spherical surface anti-vibration sizing block, which relates to the technical field of spherical surface sizing blocks, and comprises a sizing block shell and a spherical surface support table, the top of the sizing block shell is provided with a sizing block hole, a sliding wedge-shaped block is arranged in the sizing block shell, the top surface of the sliding wedge-shaped block is matched with a lifting wedge-shaped block, the top of the lifting wedge-shaped block is fixedly provided with a lifting column, and the lifting column is provided with a lifting hole. The lifting column penetrates out of the sizing block hole and is fixedly provided with a bearing plate, a column body is fixed to the bearing plate, a spherical concave face is formed in the top of the column body, a spherical convex face is formed at the bottom of the spherical supporting table and is matched with the interior of the spherical concave face, the column body comprises a fixed half-type column and a detachable half-type column, the fixed half-type column is fixed to the bearing plate, and the detachable half-type column is fixed to the bearing plate. The detachable half-type column is connected with the fixed half-type column through a bolt, and the spherical supporting table is matched with the column body through a spherical surface, so that the spherical supporting table has the fine adjustment freedom degree and can adapt to the uneven inclination angle of the bottom face of a machine tool, the contact area between the spherical supporting table and the machine tool is large, and therefore the supporting effect is improved.

The invention provides a box body interlocking structure which comprises a mounting groove, the mounting groove is located in one side of a box body and communicates with clamping grooves in one side of the box body, pushing blocks are slidably arranged at the positions, communicating with the clamping grooves, of the mounting groove, a movable rod is arranged in the mounting groove, and wedge-shaped blocks and movable movable rods are arranged at the positions, corresponding to the pushing blocks, of the movable rod. The wedge-shaped block can be driven to abut against the inclined face on the pushing block, so that the pushing block moves into the clamping groove, and the clamping block in the clamping groove is pushed out of the clamping groove; and the locking assembly is used for locking the position of the movable rod after the clamping block retreats from the clamping groove. According to the invention, by moving the movable rod, the pushing block moves into the clamping groove, and the clamping block located in the clamping groove is pushed out of the clamping groove, so that unlocking between the upper box body and the lower box body is completed; and through the arrangement of the locking assembly, the clamping block can be prevented from being automatically clamped in the clamping groove in the unlocking state. According to the scheme, during unlocking, one-man operation can be achieved, unlocking of the two box bodies can be completed only through one-time operation, and use is convenient.

The invention discloses a mechanical connection type precast pile for collapsible loess treatment, and relates to the technical field of precast pile connection, the mechanical connection type precast pile comprises a foundation pile and precast piles distributed at the top of the foundation pile, and a connection mechanism is arranged in each precast pile; a lower connecting mechanism is arranged at the bottom of the precast pile; an upper connecting mechanism is arranged at the top of the precast pile and the top of the foundation pile; the lower connecting mechanism at the lower end of the precast pile and the upper connecting mechanism at the upper end of the foundation pile are spliced and clamped and fixed through an arranged fixing mechanism, and the fixing mechanism comprises a plurality of wedge-shaped grooves formed in the side wall of the upper connecting plate and the side wall of the lower connecting plate. The mechanical connection type precast pile for collapsible loess treatment has the effects of being convenient to install, high in structural strength and high in stability.

Disclosed are a method and apparatus devices for an acrylic display case wherein the two panels (walls or ceiling or even floor) are adjoined using substantially wedge-shaped (trapezoidal) fittings capable of easily snapping into slot cut-outs / notches in the acrylic panel walls (or ceiling or floor) before final screw-tightening. The wedge-shaped fittings are easily positioned (inserted by sliding-insertion, then push-snapped) into their receiving slots in their respective panel slots (before being screw-tightened from a screw coming from the perpendicular panel). The wedge-shaped fitting promotes “one direction insertion” and then ‘snaps into place’ in its panel slot due to the fitting's “substantially three layer (3-structure)” style shape. Each fitting has an inner (anchors inside the box) face section with a surface area slightly larger than its panel notch. This inner section is ultimately positioned inside the case, acting as an inner anchoring lip against the acrylic panel's inside wall (wall herein interchangeable with “panel, whether ceiling or side or floor). The fitting further comprises a tapered middle section that allows for easy sliding-insertion into the panel notch-slot, and then allows gentle pressing / pushing into place (until friction gives to the “snap” positioning). This seamless positioning is made possible due to the fitting's middle-section tapering. After insertion (smaller end of the wedge fitting is initially inserted into the wider end of the dovetail shaped slot), as the fitting is then pressed into its slot, the tapered middle structure is what allows the fitting to gently slide against the panel notch's edge until the fitting “snaps” into place when this friction is overcome. The fitting further comprises an outer face section which is substantially larger than its panel-slot. This fitting “outer face section” has the largest surface area of the fitting's three sections. Both the innermost and outermost “layers / structures” of the fitting function as “lip-rim anchors” to keep the fitting firmly in its panel-slot, while the trapezoidal “wedge shape” of the fitting allows efficient insertion and ultimately secure snap-placement.The remainder of the system comprises modular panels with optional cut-out slots, tabs, indentations and screw holes to build a wide variety of display cases.

The invention belongs to the field of airplane structure strength tests, and relates to an adjustable composite material single rib plate bending loading pressure head. The loading pressure head comprises a pressure head support (2), a wedge-shaped cushion block (3), a skin pressure roller (5) and a stringer pressure roller (7), the pressure head support (2) is provided with a stand column (21) and a track plate (22), the side edge, above the track plate (22), of the stand column (21) is provided with a notch for installing the wedge-shaped cushion block (3), the skin pressure roller (5) and the stringer pressure roller (7) are arranged in a containing groove of the track plate, and the skin pressure roller (5) penetrates through the track plate and then makes contact with the wedge-shaped cushion block (3). According to the application, the stringer flanges on the two sides of the web and the skin are separately pressed, so that accurate loading of bending pressure on the single rib plate with the stringer flanges and the skin inconsistent in thickness is realized.

The invention discloses a ring lock type scaffold and an erecting method, and relates to the technical field of scaffold engineering construction. In order to ensure that the scaffold can be continuously erected upwards under the condition that a vertical rod at the lower part of the scaffold is broken, the following scheme is provided: the scaffold comprises a conventional vertical rod, a plurality of groups of horizontal rods and a plurality of groups of disc buckle vertical rods, the bottom of the conventional vertical rod is fixed on the ground, the side end of the conventional vertical rod is fixed on a building structure, and a base is arranged at the bottom of the disc buckle vertical rod; a U-shaped clamping groove for mounting the horizontal rod is formed in the outer end part of the base; and the U-shaped clamping groove is provided with an opening side and an arc-shaped inner surface matched with the outer wall of the horizontal rod. A horizontal rod U-shaped end is arranged at the end of the horizontal rod, a lock pin inserting pin opening penetrating through the interior of the base is formed in the base, a wedge-shaped lock pin is slidably arranged in the lock pin inserting pin opening in a penetrating mode, and the wedge-shaped lock pin is in radial extrusion fit with the U-shaped end of the horizontal rod and the inner wall of the base. According to the scaffold, under the condition that the vertical rods on the lower portion of the scaffold are broken, the scaffold body can be continuously erected upwards, and the stability of the scaffold is ensured.

The invention relates to the field of contact lens manufacturing, in particular to contact lens automatic filling mold closing equipment which comprises a positioning carrier plate, a mold splitting assembly, a liquid injection assembly and a mold closing assembly, and the mold splitting assembly, the liquid injection assembly and the mold closing assembly are arranged above the positioning carrier plate. The first transfer device can drive the positioning carrier plate to move right below the mold splitting assembly, the liquid injection assembly and the mold closing assembly; the die splitting assembly comprises a plurality of groups of stripping clamping jaws, and each group of stripping clamping jaws are symmetrically arranged and can be close to or far away from each other; the sides, close to each other, of the two stripping clamping jaws in each set extend oppositely to form wedge-shaped protrusions, and a first inclined face and a second inclined face are formed above and below the extending direction of the protrusions respectively. And during stripping, the bulge is inserted between the upper die and the lower die. Die splitting of the upper die and the lower die of the die is divided into two independent actions of stripping and separation, so that the situation that the upper die deviates or falls off at the moment of separation in one-time die splitting is avoided.

The invention discloses a test device for measuring the compression strength of a composite material plate, which comprises an upper box body and a lower box body, a guide column is arranged between the upper box body and the lower box body, an upper clamping assembly is arranged at the lower end of the upper box body, a lower clamping assembly is arranged at the upper end of the lower box body, and the upper clamping assembly and the lower clamping assembly have the same structure and opposite installation directions. The upper clamping assembly or the lower clamping assembly comprises two wedge-shaped clamping block units which are oppositely arranged, and the end part of the test piece is clamped between the two wedge-shaped clamping block units. The invention also discloses a test method for measuring the compression strength of the composite material plate. The test device can stably work for a long time in high and low temperature environments, meets the test requirements of a compression test, adopts a split design, is rapid in clamping, can effectively resist bending and torsional deformation, improves the test efficiency and accuracy, keeps reliable clamping all the time in the test process, and is simple in structure and convenient to operate. And the problem of clamping failure caused by thermal expansion and cold contraction is effectively solved.

The invention discloses a composite beam capable of enhancing the ultimate strength of an ultimate concrete structure. The span of the beam is measured, a bending moment graph of the beam is drawn, according to analysis of the bending moment graph, UHPC is selected for a pure bending section (the middle of the span) above a neutral axis of the beam, the upper half part of the beam is covered, and common concrete is used for the rest parts; half of the beam height is selected to use UHPC on the upper portion, and the structural ultimate strength of the composite beam can be improved; the FRP rib is used on the lower portion of the beam, the tensile property and ductility of the lower portion can be improved, a sleeve grouting anchorage device (the inner wall of a metal sleeve is provided with threads) and a wedge-shaped anchorage device (the clamping section is wrapped with a copper sleeve) are adopted, the anchoring reliability is ensured through the double effects of chemical bonding and mechanical meshing, and due to the fact that the FRP rib can be subjected to brittle failure and is preset to be in a super rib failure mode, the tensile strength and ductility of the lower portion can be improved. The problem of brittle failure of the FRP rib is solved. The beam is simple in design, convenient to construct, reasonable in stress, high in structural ultimate strength, high in reliability, wide in application range and material-saving.

According to the precise displacement platform, due to the fact that the objective table is placed on the wedge-shaped table, and the length direction of the hinge shaft is in the second horizontal direction, the objective table slides on the wedge-shaped table when the linear driving mechanism drives the adjusting assembly to horizontally move in the first horizontal direction, and therefore the lifting function is achieved, due to the fact that the wedge-shaped table is hinged to the adjusting assembly through the hinge shaft, the inclination of the wedge-shaped table relative to the adjusting assembly can be changed, switching between a high transmission speed mode and a high precision mode can be achieved according to the inclination, and the high transmission speed mode and the high precision mode can be achieved through the device. The precise displacement platform is simpler in structure and convenient to operate.

The invention belongs to the technical field of structural engineering, and relates to a self-resetting lateral force resisting module suitable for a beam through type frame. According to the technical scheme, a rotating support is an obtuse-angle triangular frame composed of an inclined support and a horizontal beam, the obtuse-angle top of the obtuse-angle triangular frame is hinged to the bottom of an upper-layer main beam of a beam-through type frame, and the center of the horizontal beam of the obtuse-angle triangular frame is connected with a thorn ring-disc spring reset system; the acute angle of the obtuse triangle frame is connected with an inner wedge-shaped plate-disc spring reset system and an outer wedge-shaped plate-disc spring reset system; the viscoelastic damping groove is connected to the lower portion of the horizontal beam and located between the thorn ring-disc spring reset system and the inner wedge-shaped plate-disc spring reset system and the outer wedge-shaped plate-disc spring reset system. The bottoms of the thorn ring-disc spring reset system, the viscoelastic damping groove, the inner wedge-shaped plate-disc spring reset system and the outer wedge-shaped plate-disc spring reset system are fixedly connected with the upper portion of a lower layer main beam of the beam through type frame. The characteristics of a beam through type steel frame are fully matched, and the weak layer effect of the beam through type steel frame in the application of a high-rise building structure in the background technology is solved.

The utility model discloses a sampling device for flow cytometry, which relates to the technical field of cytometry and comprises a bottom plate and a rotating rod, the rotating rod is rotatably arranged on the upper surface of the bottom plate, a cross rod is fixedly arranged at the upper end of the rotating rod, and mounting shells are fixedly arranged at two ends of the cross rod. Mounting blocks are clamped to the inner sides of the two mounting shells correspondingly, a placement plate is fixedly arranged on the upper sides of the mounting blocks, a plurality of limiting rings are arranged above the placement plate, the two ends of the lower sides of the limiting rings are fixedly connected with the placement plate through connecting rods correspondingly, a vertical rod is fixedly arranged on one side of the upper surface of the bottom plate, and the vertical rod is fixedly connected with the lower side of the bottom plate. And wedge-shaped blocks are fixedly arranged at the upper ends of the vertical rods, wedge-shaped grooves are formed in the lower ends of the mounting blocks on the two sides, a through groove is formed in the middle of the lower side of the mounting shell, and the wedge-shaped blocks are connected with the corresponding wedge-shaped grooves in a clamped mode. According to the utility model, loading and reloading can be carried out synchronously, so that the time wasted by reloading can be reduced, and the working efficiency is improved.

The invention relates to the technical field of constructional engineering, in particular to a building formwork which comprises formwork single plates and connecting pieces, every two adjacent formwork single plates are spliced and connected through the corresponding connecting piece, round clamping bases are arranged on the two sides of each connecting piece, clamping holes allowing the round clamping bases to be inserted in a matched mode are formed in the four sides of each formwork single plate, and locking mechanisms are arranged on the end faces of the round clamping bases. A pushing mechanism is arranged on the face, not making contact with concrete, of the single formwork plate, the locking mechanism comprises traction arms and clamping arms, a guide rod is fixed to the end face of the circular clamping base, the guide rod is sleeved with a ring sleeve in a sliding mode, the multiple traction arms are hinged to the ring sleeve, the multiple clamping arms are hinged to the circular clamping base, and the traction arms are hinged to the clamping arms in a one-to-one correspondence mode. When the ring sleeve is pushed to move through the pushing mechanism, the joint of the traction arm and the clamping arm protrudes towards the periphery in an expanding mode and abuts against and is matched with the port of the clamping hole to form mechanical locking, and when the pushing mechanism is operated, a special tool does not need to be used, and a traditional wedge-shaped clamping piece is replaced for locking.

The utility model relates to a radial centering and axial pressing structure and a milling machine fixture, and the radial centering and axial pressing structure comprises a fixed seat, a fixed seat and a pressing block, the fixed disc is located in the sliding cavity; the pressing assembly comprises a plurality of pressing pieces arranged in the circumferential direction of the workpiece machining end of the fixing base. The pressing piece is rotationally connected to the workpiece machining end. The centering assembly comprises a wedge-shaped block and a plurality of clamping pieces connected with the wedge-shaped block in a sliding mode; the elastic piece is positioned between the wedge-shaped block and the fixed disc; and the driving rod is arranged in the sliding cavity in a penetrating mode and fixedly connected with the fixing disc, and one end of the driving rod penetrates through the wedge-shaped block and is rotationally connected to one end of the pressing piece. Due to the fact that the radial centering assembly and the axial pressing assembly are arranged, the device is more stable in the machining process, and the machining precision is higher.

The present invention relates to the technical field of building formwork, and provides a modular housing building formwork system, which includes a formwork component and a fixing component, and further includes a formwork removal structure for removing the formwork component. The formwork removal structure includes a wedge-shaped strip rib, and the inclined angle structure of the wedge-shaped strip rib is used to jack up the formwork component, so that it gradually moves away from the concrete wall, so as to realize the stable and controllable process of removing the formwork component. When removing the formwork of the present invention, no auxiliary tools such as a formwork removal hammer and a formwork removal rod are required, the formwork component will not be damaged, the operation is convenient and fast, the labor intensity of construction workers is reduced, and the operation efficiency is improved; high-strength alloy is adopted to enhance the durability and stability of the building formwork system; by rotating the vertical screw rod to drive the wedge-shaped strip rib to jack up the vertical plate to make the formwork component, the problems that the formwork falls randomly easily and damages the concrete wall and the formwork in the traditional formwork removal operation are overcome, the recycling utilization rate of the formwork component is improved, and the recycling cost is reduced.

The utility model relates to the technical field of engineering construction, in particular to an auxiliary positioning support for a highway engineering tunnel reinforcement anchor rod pull-out test, and aims to solve the problem that in the highway tunnel construction process at present, when reinforcement bond stress is detected through a reinforcement anchor rod in a tunnel lining, the reinforcement bond stress cannot be detected. Due to the lack of an auxiliary positioning device for driving and installing the tunnel anchor rod and the drawing base plate, the end of the anchor rod is generally deformed and bent, the drawing test base plate is difficult to install, and finally the drawing test data test is discontinuous. According to the support, the anchor rod penetrates through the positioning sleeve which is matched with the anchor rod in size, then the wedge-shaped base is stably arranged on the stratum, then the anchor rod stretching device is aligned with the positioning sleeve, and a stretching test is started, so that the influence of a common steel base plate in traditional stretching is avoided, and the bent anchor rod can be straightened; and meanwhile, equipment such as an anchor rod extension scale can be mounted according to requirements to detect the elongation in the stretching process, and the convenience of mounting the stretching device by an operator is improved to a great extent.

The invention discloses an air-aspiration type disc dibbler with a wedge-shaped hole forming device. The air-aspiration type disc dibbler mainly comprises an air-aspiration type seed metering device and a disc hole forming device, the air suction type seed metering device is formed by sequentially connecting a negative pressure cavity, a main disc and a fixed shell on the hollow shaft, the main disc is provided with small seed taking holes, and the fixed shell is connected with a seed blowing device; the disc hole forming device is composed of a main disc and an auxiliary disc, wedge-shaped hole forming devices are evenly welded to the outer circumference of the main disc, and a seed guiding device is arranged on the disc face of the main disc. The wedge-shaped hole forming device on the outer circumference of the main disc is adopted for hole forming, and the problem that a traditional duckbilled hole forming device is not suitable for high-speed hole sowing is solved; the main disc integrates seed suction and hole opening functions, seed suction holes are formed in the disc surface of the main disc, the wedge-shaped hole opening device is welded to the outer circumference of the main disc, the disc hole opening device can be combined with an air suction type seed metering device, the seeding speed can reach 6-8 km / h and is increased by more than 40% compared with a traditional duckbilled dibbler, and the seeding speed and efficiency of the dibbler are improved.

The invention relates to a rapid and intelligent stamping method for hardware products, belongs to the technical field of intelligent stamping of the hardware products, solves the problem of resilience through the combined action of temperature gradient control and partition mechanical compensation, is provided with a heating and cooling unit at a bending station, and is pre-pressed through a low-friction coating pressure plate and a high-strength spring at an outer tension area, so that the metal products are rapidly and intelligently stamped. In the inner side pressed area, a stepped material ejecting block is designed to be matched with a multi-rigidity spring set, so that partition elastic yielding is achieved, redundant materials are absorbed, wrinkling is restrained, a wedge-shaped ejector rod and a wedge-shaped floating sliding block are designed in a transition area, and springback is counteracted through material ejecting and pressing and active pre-compression in the middle and later period of bending; besides, the bending force curve is monitored in real time through intelligent closed-loop control, theoretical value deviation is compared, temperature control parameters and the bending speed are adjusted in a self-adaptive mode till the springback value is stabilized within the error range, and the problems of how to synchronously restrain bending defects and accurately control the springback value in the continuous stamping process in the prior art are solved.

The utility model discloses a wedge-shaped jacking mechanism with double precise positioning, which comprises a first jacking mechanism and a second jacking mechanism, the first jacking mechanism comprises a vertical cylinder fixedly arranged on a conveyor line rack and a jacking plate connected with the vertical cylinder, the middle part of the jacking plate is provided with a jacking abdicating hole, and the jacking abdicating hole is provided with a jacking hole. The second jacking mechanism comprises a jacking rod arranged in the jacking receding hole in a matched mode, a wedge-shaped block abutting against the bottom end of the jacking rod, and a horizontal air cylinder connected with the wedge-shaped block. A product part is positioned on the tool plate, the vertical air cylinder drives the jacking plate to ascend, and the tool plate is jacked up from the conveying line. Afterwards, the horizontal air cylinder drives the wedge-shaped block to move horizontally, and the wedge-shaped block drives the ejector rod to penetrate through the tool plate to be supported below the product part. And then, the pressure head descends to press the product part into a molded product. According to the design, the tool plate can be accurately positioned, powerful support is provided for product parts, and it is guaranteed that the product parts can be smoothly pressed into a formed product through the pressing head.

The invention belongs to the technical field of connectors, and particularly relates to a conical chuck connector tail accessory, a using method and a connector, the tail of the connector is provided with the conical chuck connector tail accessory, the conical chuck connector tail accessory comprises a wire clamping cap and a connecting nut, an inner cavity of the rear end of the wire clamping cap is a conical hole, and the connecting nut is arranged in the conical hole. A conical chuck is inserted into the conical hole, the outer wall of the front end part of the conical chuck is a wedge-shaped surface, and a shielding layer of the cable is turned backwards and outwards and is clamped between the wedge-shaped surface and the conical hole; the rear end of the wire clamping cap is in threaded connection with a locking nut, the inner wall of the locking nut can extrude the rear end of the conical chuck forwards and inwards when the locking nut is screwed, a threading sleeve is embedded in the conical chuck, a cable penetrates through the threading sleeve, and the threading sleeve extends backwards out of the conical chuck. A conical chuck structure is arranged in the tail accessory of the connector, the function of clamping shielding wires and cables is achieved, meanwhile, a threading sleeve is additionally arranged at the tail of the tail accessory, the stress of the cables is reduced, and the threading sleeve is clamped.

The invention discloses a supporting end, a supporting device and a foundation pit supporting construction method, and belongs to the technical field of foundation pit construction.The supporting end comprises a mounting base, a connecting assembly, a wedge-shaped plate and a plurality of supporting pieces, one side of the wedge-shaped plate in the thickness direction is a plane, and the other side of the wedge-shaped plate is an inclined plane; the included angle between the inclined face and the plane is strictly matched with the inclined angle of the foundation pit wall face, meanwhile, the plane of the wedge-shaped plate is attached to the connecting plate, the connecting plate is stably connected with the mounting base arranged on the outer surface of the output shaft in a sleeving mode through the multiple locking pieces, and the supporting pieces made of elastic materials are evenly distributed on the inclined face of the wedge-shaped plate. The driving mechanism can drive the mounting base to drive the multiple supporting pieces to abut against the wall face of the foundation pit. The supporting device comprises a supporting steel column, two driving mechanisms and two supporting ends, and the two supporting ends are correspondingly installed on output shafts of the two driving mechanisms. The foundation pit supporting construction method adopts the supporting device. The method is simple in construction, high in supporting stability and high in economic value.

The invention relates to a control method for improving the wedge shape of an intermediate billet by a roughing mill. The control method comprises the step of distinguishing slabs tapped from different heating furnaces. And the plate blanks discharged from the same heating furnace are implemented according to the same set of roll gap lifting or pressing adjustment strategy. And adjusting parameters are set for each pass of the roughing mill unit. And rough rolling adjustment setting is conducted according to a finished product wedge-shaped index feedback result produced by the finishing mill, and automatic setting output is achieved. And the adjustment amount set by the R1 is distributed to each pass of each rough rolling rack according to the proportion. And R2, performing lifting or pressing adjustment on the three passes according to the calculated wedge-shaped data of the three sections divided by the finish rolling outlet strip steel. According to the method, the wedge size control precision of the hot-rolled intermediate billet can be effectively improved, so that the thickness, convexity, wedge shape and straightness of a final hot-rolled finished product meet precision requirements, and meanwhile, process waste products or head and tail rolling breakage caused by the fact that a finishing mill group cannot normally penetrate due to camber of the head of the intermediate billet are avoided.

A telescopic snow removing shovel welding device comprises a welding table, electric sliding tables, welding arms and a snow removing shovel inner support, the electric sliding tables are symmetrically installed on the front side and the rear side of the top of the welding table, the two welding arms are installed in the two electric sliding tables respectively, and supporting seats are symmetrically arranged on the left side and the right side of the top of the welding table. According to the scheme, a supporting rod and a sliding base are matched to rotate a second hand wheel to adjust the distance between the clamping position and the overturning center, then the distance between a first screw rod and a first hand wheel is adjusted to adapt to overturning center points of inner supports of snow removing shovels of different specifications, and it is guaranteed that the positions before and after overturning are consistent; then, automatic clamping and fixing are achieved through wedge-shaped grooves of a fixing block and a clamping block, the welding efficiency is improved, finally, through cooperation of an overturning clamping ring, a supporting rod and a guiding inclined groove, the clamping force is temporarily increased in the overturning process, sliding caused by gravity center shifting is avoided, the position accuracy is ensured, and therefore the welding accuracy is improved.

The utility model discloses a hollow anchor rod body efficient saw cutting auxiliary device which comprises a bundling device and a clamping tool, and the bundling device comprises eight connecting blocks. Wherein the first connecting block and the second connecting block, the third connecting block and the fourth connecting block, the fifth connecting block and the sixth connecting block, and the seventh connecting block and the eighth connecting block are respectively connected through welding; the second connecting block, the fourth connecting block and the sixth connecting block are respectively connected with a seventh connecting block, a fifth connecting block and an eighth connecting block; the opening angle of the left clamping block and the right clamping block of the clamping tool is equal to the included angle of the first connecting block and the seventh connecting block. According to the hexagonal bundling auxiliary device, anchor rod bodies are bundled into a regular hexagonal structure; then, a wedge-shaped pressing tool is designed to be matched with a sawing machine hydraulic device to pre-tighten the side faces and the tops of the bundled anchor rod bodies; and then the sawing machine is started for sawing, so that efficient sawing of the rod bodies of the bundled anchor rods can be completed.