457 results about "Transverse groove" patented technology

The utility model discloses a high-performance light truck snow tire which comprises a central pattern block, a tire shoulder pattern block, a longitudinal groove, a transverse groove, a central groove, a non-through V-shaped groove, a zigzag three-dimensional (3D) channel steel sheet I, a zigzag 3D channel steel sheet II, a groove bottom trapezoidal silencing bolt and a reinforcing rib, the non-through V-shaped grooves are located at the front end of the rhombus, the longitudinal grooves are designed between the tire shoulder pattern blocks and the center pattern block and are designed in a zigzag shape, the first zigzag 3D cutter groove steel sheets are designed on the tire shoulder pattern blocks, the transverse grooves are designed between every two adjacent tire shoulder pattern blocks, and the second zigzag 3D cutter groove steel sheets are designed on the tire shoulder pattern blocks. By optimizing the pattern shape, widening the transverse grooves, optimizing the shapes and the depths of the longitudinal grooves and the width grooves and adopting the design of the zigzag three-dimensional cutter box steel sheets and the inclined steel sheets, compared with the existing same type and same specification, the snowfield performance is ensured, and the slippery noise performance of the tire is improved on the basis of ensuring the snowfield performance.

The utility model relates to the technical field of tires, and discloses a new energy tire which comprises a tire tread, a plurality of longitudinal grooves and transverse grooves are formed in the tire tread, and first water film breaking units, second water film breaking units and third water film breaking units are arranged in the longitudinal grooves. Through the design that the continuous pattern ribs of the pattern blocks in the center of the tread are connected with the steel sheets, the rigidity of patterns can be well balanced, and the grounding area is increased, so that the abrasion performance of the tire is improved, and the road holding force of the tire is improved; through the design of a plurality of first water film destroying units, a plurality of second water film destroying units, a plurality of third water film destroying units and self-flow-guiding patterns in the longitudinal grooves of the tire, the wet land safety of the tire can be obviously improved, and the rigidity of the shoulder pattern blocks can be guaranteed through a plurality of transverse steel sheets arranged in the shoulder pattern blocks of the tire; and the characteristic of low noise of the tire can be realized by coping with the instantaneous torque of the new energy automobile and improving the instantaneous road holding force and adopting a multi-layer variable-pitch arrangement mode.

The invention discloses a postoperative binding device for tumor radiotherapy nursing, and belongs to the field of postoperative binding. Comprising a clamping mechanism, and a height adjusting mechanism is arranged above the clamping mechanism; a moving mechanism is arranged above the height adjusting mechanism; a limiting mechanism is arranged above the moving mechanism; the limiting mechanism comprises a clamping seat, a transverse groove is formed in the upper surface of the clamping seat, the interior of the transverse groove is rotationally connected with a two-way screw rod II through a rotating shaft, the outer side wall of the two-way screw rod II is in threaded connection with two movable blocks, and the tops of the movable blocks are fixedly connected with arc-shaped clamping plates. A lifting screw is driven to rotate by holding a first knob, a movable clamping plate is controlled to descend under guiding of a guide vertical rod, the movable clamping plate clamps the upper portion of the edge of a bed body, bed body clamping is completed, through the arrangement, the device can be conveniently adjusted according to different thicknesses of the bed body, bed bodies with different thicknesses are clamped, and the use scene is wider.

The utility model relates to the technical field of floor lock catch structures, in particular to a stable floor lock catch structure which comprises a floor body, a first mortise is formed in one side of the floor body, a first tenon plate connected with the first mortise in a clamped mode is installed at the other end of the floor body, and a second tenon plate is installed on the inner wall of the first mortise. A second tenon groove connected with the second tenon plate in a clamped mode is formed in one side of the first tenon plate, a transverse groove is formed in the floor body, battens are connected to the inner side of the transverse groove in a clamped mode, every two adjacent battens are connected in a clamped mode through a quick locking mechanism, and the quick locking mechanism comprises a movable butt joint assembly, an abutting assembly and a dragging assembly. The movable butt joint assembly is used for preliminarily splicing two adjacent groups of battens, and the dragging assembly is used for unlocking the two groups of battens; the connecting structure is simple in structure and convenient to operate, and the connecting strength between the floor main bodies is further improved after the floor main bodies are laid.

The invention relates to the technical field of vibration isolation and suppression devices, and discloses a rigidity-adjustable active and passive composite shock absorber. A load platform of the rigidity-adjustable active and passive composite shock absorber is located on the uppermost layer of the whole device; the supporting unit supports the active vibration reduction unit and the passive vibration reduction unit. The passive vibration reduction unit is matched with the active vibration reduction unit to form a second-order active and passive composite vibration reduction model, and the passive vibration reduction unit comprises a transverse groove type spring; the connecting unit comprises a connecting rod; the lower ends of the transverse groove type springs are connected with the supporting units, the upper ends of the transverse groove type springs support the load platform through connecting rods, and through holes are formed in the positions, corresponding to the connecting rods, of the transverse groove type springs. The fastener can penetrate through the load platform and the connecting rod to be screwed into the transverse groove type spring, and the rigidity of the transverse groove type spring is adjusted by adjusting the screwing-in depth of the fastener in the transverse groove type spring. In the active and passive composite shock absorber, compared with a traditional spring, the transverse groove type spring has the advantages of being compact and stable in structure, high in designability and the like, and the flexible rigidity requirement can be met through parametric design.

The present invention belongs to the technical field of turning slotting, and specifically refers to a part cutting device for metal processing, including an adaptive spacing type transverse movement mechanism, a variable depth slotting mechanism and an installation clamping mechanism, wherein the adaptive spacing type transverse movement mechanism is arranged on a fixed side plate, and the variable depth slotting mechanism is arranged on the adaptive spacing type transverse movement mechanism. On the one hand, the present invention can realize intermittent driving of the beam body by utilizing the reciprocating extension and contraction of the opening and closing control push rod that controls the tool feed through the rotation drive of the one-way transmission component, which not only simplifies the structure, but also realizes the mutual action coordination between the tool advance and retreat and the intermittent sliding of the beam body; on the other hand, the adaptive spacing type transverse movement mechanism senses the diameter of the stepped shaft parts, and can adaptively change the sliding amplitude of the beam body when the diameter of the stepped shaft parts at the slotting position changes, thereby realizing the technical effect of automatically adjusting the slotting density.

The utility model relates to an anti-separation paving structure plate which comprises a panel, a functional groove is arranged on the side face of the panel, the functional groove is provided with a transverse groove wall and a vertical groove wall connected with the transverse groove wall, the transverse groove wall is connected with the side face of the panel, and the vertical groove wall is further connected with the lower surface of the panel. According to the utility model, through the arrangement of the functional groove, the paving stability and the firm strength of the panel are improved. The functional groove also has a precise positioning function, and when the panels are paved, the space positions of the panels can be automatically and precisely positioned by matching the functional groove with the mortise or the connecting piece arranged on the paving basic surface, so that on one hand, the positioning difficulty is reduced, and on the other hand, the positioning precision is improved; and no yellow sand cement pollutes the side face of the panel, so that seam beautifying construction of the paved panel is more convenient and attractive, and the paving quality is improved.

The utility model relates to the technical field of track structures, in particular to a frame type embedded track structure which comprises a base body, a transverse groove is formed in the base body, a noise reduction mechanism is arranged in the base body, the noise reduction mechanism comprises a vibration isolation supporting plate, the vibration isolation supporting plate is fixedly connected to the top of the inner side of the transverse groove, and the vibration isolation supporting plate is fixedly connected to the top of the inner side of the transverse groove. The top of the vibration isolation supporting plate is fixedly connected with a damping rod, the outer wall of the damping rod is sleeved with a spring, the top of the damping rod is fixedly connected with an elastic plate, the top of the elastic plate is fixedly connected with a rubber pad, the top of the rubber pad is fixedly connected with a boss, and the back of the boss is fixedly connected with a cross beam. The vibration isolation supporting plate is used for isolating vibration, the rubber pads are used for buffering and supporting, the two transverse grooves are formed in the left side and the right side of the interior of the base body, and the train noise can be reduced when a train passes through the train noise reduction device, so that the situation that the life of residents is affected due to the fact that the train noise is too large is avoided.

The utility model discloses a distributor with a spiral lock. The distributor comprises a pump body, a valve rod, a spiral sleeve and a spring. The lower portion of the valve rod is sleeved with the spiral sleeve, and the spiral sleeve and the valve rod are fixed in the circumferential direction. The valve rod is sleeved with the spring, the upper plane of the spring abuts against the duckbill, and the lower plane of the spring abuts against the spiral sleeve. A spiral groove is formed in the pump body, and a transverse groove is formed adjacent to the top of the spiral groove. A spiral protrusion is arranged on the side wall of the spiral sleeve. When the spiral protrusion is located in the transverse groove, the distributor with the spiral lock is in an opened state. When the spiral protrusion is located at the bottom of the spiral groove, the distributor with the spiral lock is in a closed state. According to the distributor with the spiral lock, the user experience of consumers is improved, and the service life of the distributor is prolonged. According to the distributor with the spiral lock, the product height is reduced, and the production cost is reduced; and the outer diameter of the pump body is reduced, so that the adaptability and the applicability of the spiral lock distributor are wider.

The invention relates to the technical field of circuit breakers, and particularly discloses a recloser with a positioning structure and a circuit breaker. The recloser comprises a shell, an operating mechanism and a positioning mechanism. The operating mechanism achieves opening and closing control through left-right movement of the cross rod, the positioning mechanism is composed of a main body, an adjusting rod and a connecting plate, the main body is provided with a transverse groove and an inclined groove, and first protruding shafts at the two ends of the cross rod are embedded into the transverse groove and the inclined groove. The adjusting rod adjusts the relative position of the cross rod through up-and-down movement, and precise calibration of the working state is achieved. And the chute design can prevent the vacuum tube in the pole from being damaged due to false closing after the cross rod is dislocated. The cumbersome debugging steps of a traditional recloser are simplified through a pre-debugging mechanism, the opening stability is ensured through the friction force between the chute and the convex shaft, and manual and automatic dual-mode operation is supported. The positioning structure and the anti-misoperation design of the recloser and the circuit breaker remarkably improve the action reliability and the maintenance efficiency of the recloser and the circuit breaker, and are suitable for efficient operation and maintenance of a power system.

The utility model relates to the technical field of range hoods, and particularly discloses a hanging structure, a range hood and a hoisting system. The hanging structure comprises a mounting frame, hanging groove structures are arranged on the two opposite sides of the mounting frame, each hanging groove structure comprises a vertical groove, a transverse groove and a limiting piece, the vertical grooves extend in the vertical direction, openings are formed in the positions, at the bottom of the mounting frame, of the lower ends of the vertical grooves, the transverse grooves extend in the horizontal direction, and the limiting pieces are arranged on the transverse grooves. One end of the transverse groove is communicated with the upper end of the vertical groove; and the limiting piece is arranged in the transverse groove and is used for limiting the hook in the transverse groove to be separated from the transverse groove. According to the utility model, the range hood can be conveniently and quickly mounted, and the mounting efficiency is improved.

The utility model discloses a tungsten molybdenum mould claw, relates to claw technical field, including base, the top of base is provided with the adaptation mechanism for adaptation tungsten molybdenum mould of different specifications and dimensions to carry out the clamping, adaptation mechanism includes: the clamping unit, be provided on the top of base and be used for the clamping power passes through the clamping unit; the adjusting unit is arranged above the clamping unit and comprises a mounting box, an I-shaped groove is formed in the mounting box, a first rack is slidably mounted in a lower transverse groove of the I-shaped groove, a second rack is slidably mounted in an upper transverse groove of the I-shaped groove, and a rotating column is rotatably mounted in the mounting box; the adjusting unit is arranged, the hand wheel is rotated to drive the gear to rotate through the rotating column, the gear drives the first rack and the second rack to move in the opposite direction or in the opposite direction, and therefore the clamping base assembly is driven to synchronously move in the opposite direction or in the opposite direction, and tungsten-molybdenum dies of different specifications and sizes are clamped and fixed.

The invention relates to an eccentric-to-concentric angle adjuster which comprises an outer toothed plate installed on a guide plate through a cross coupling, and the surface, facing the cross coupling, of the guide plate is provided with paired transverse protrusions so that transverse sliding grooves can be formed between the transverse protrusions. The surface, facing the cross coupling, of the outer toothed plate is provided with paired vertical protrusions so that a vertical sliding groove can be formed between the vertical protrusions, the cross coupling comprises a transverse sliding block and a vertical sliding block which are vertically arranged, the transverse sliding block is contained in the transverse sliding groove to slide so as to provide contact fit, and the vertical sliding block is contained in the vertical sliding groove to slide so as to provide contact fit; the cross coupling further comprises supporting blocks or wedge-shaped blocks acting on the transverse sliding blocks and the vertical sliding blocks so that the transverse sliding blocks and the vertical sliding blocks can be expanded in the width direction to eliminate the sliding groove gaps. According to the eccentric-to-concentric angle adjuster, on the premise of low cost, all the sliding groove gaps in the cross-shaped structure are stably controlled to be not larger than 0.015 mm, and the backrest gap is greatly reduced.

The utility model discloses a cross beam suspended straight-row tool magazine, which relates to the technical field of tool changing of machine tools and comprises a tool magazine bottom plate, a pushing mechanism and a suspension plate. The pushing mechanism drives the tool magazine bottom plate to move front and back. A transverse rod is detachably installed on the front side of the tool magazine bottom plate through screws, side plates are fixedly installed at the left end and the right end of the transverse rod, transverse grooves are formed in the side plates, right-angle grooves which are bent downwards are formed in the front ends of the transverse grooves, and clamping grooves are formed between the right-angle grooves and the transverse grooves. A shielding cover is fixedly installed on the front side of the hanging plate, a cross rod and a knife rest are installed in the shielding cover in a clearance fit mode, a cover plate is installed on the upper edge of the front side of the shielding cover in a hinged fit mode, pulley yokes are fixedly installed at the left end and the right end of the rear side of the cover plate, and sliding wheels are installed on the pulley yokes in a rotating fit mode. The sliding wheel is installed among the transverse groove, the right-angle groove and the clamping groove in a sliding fit mode. The shielding cover can be used for preventing metal chippings from affecting the tool magazine during machine tool machining, and the service life of the tool magazine is guaranteed.

The utility model discloses a raised floor and stone ground joining, installing and fixing structure which comprises a hollow supporting bottom piece, a slotting supporting column is fixedly connected to the top of the hollow supporting bottom piece, a transverse groove is formed in an inner cavity of the slotting supporting column, and a positioning fixing column is connected to the inner cavity of the slotting supporting column in a sliding mode. A positioning fixing column is arranged on the surface of the transverse groove, a supporting round head is welded to the top end of the positioning fixing column, a plate round head is fixedly connected to the top end of the supporting round head, supporting round rods are slidably connected to the left side and the right side of an inner cavity of the transverse groove, and a spring is welded between a bevel head and the inner cavity of the transverse groove. And when the plate round head is higher than the position of the inclined plane head, the inclined plane head is reset under the action of the spring, and the installation of the slotted support column is completed, so that the purposes of facilitating the installation of the raised floor support and accelerating the laying process of the support can be achieved.

The utility model relates to a fixing tool for instrument board softening skin gluing, which comprises a working table and a plurality of fixing assemblies arranged on one side of the working table, each fixing assembly comprises a fixing rod, a moving rod, a movable block, a lower clamping plate and an upper clamping plate, one end of each movable block is sleeved on the outer wall of the corresponding fixing rod, and the other end of each movable block is sleeved on the outer wall of the corresponding moving rod. The movable rod is installed at the other end of the movable block in a penetrating mode, the installation direction of the movable rod is kept perpendicular to the fixed rod, a rotating rod is movably installed at the end of the movable rod, a lower clamping plate is fixedly installed at the end of the rotating rod, an upper clamping plate is movably installed above the lower clamping plate, and a transverse groove is formed in the outer wall of the movable rod. The direction of the lower clamping plate is changed through the rotating rod so as to adapt to the irregular shell edge, the skin is rapidly fixed from the edge, and positioning is completed. And the edge of the skin is clamped, so that an operator can conveniently apply force to smoothly paste the skin on the shell.

The utility model discloses a 90-degree bending angle plug forming die which comprises a bottom die and an upper die arranged on the bottom die, and the bottom die is provided with at least four first positioning grooves, at least four second positioning grooves and at least four first die cavities which are respectively used for positioning four plug bodies and are obliquely distributed at intervals; a first transverse groove communicated with all the first positioning grooves is formed in the bottom die; at least four positioning slots of which the inclination angles are the same as the inclination angles of the first positioning slots are formed in the outer side of the mold strip; one ends of four plug bodies are obliquely inserted into the positioning slots of the mold strips respectively, the mold strips are installed in the first transverse grooves of the bottom mold from top to bottom, the other ends of the plug bodies are arranged in the first positioning grooves and the first mold cavities, and the ends of a PCB and a wire welded to the other ends of the plug bodies are arranged in the first mold cavities. The wires are further arranged in the second positioning grooves, penetrate through the second positioning grooves and extend out of the bottom die, and all the wires are distributed at intervals and obliquely extend out of the same side face of the bottom die.

The utility model provides a strip-shaped target material side edge detection tool, the detection tool comprises a tool body, one side of the tool body is provided with a first vertical groove and a first transverse groove, and the first vertical groove is used for fixing the side edge of a strip-shaped target material; one end of the first vertical groove is connected with the first transverse groove to form a T-shaped groove, the first transverse groove is a through groove, and the grooving depth of the first transverse groove is larger than that of the first vertical groove. According to the utility model, through the specific arrangement of the tool body, before the target material is detected, the roughness monitor can be clamped in the first transverse groove in advance, the first vertical groove is utilized to be close to the target material, stable detection is carried out, the precision is high, the structure is simple, and the tool is suitable for popularization.

The utility model discloses a high-strength cement sound barrier which comprises a plate body, a groove is formed in one end of the plate body, a protruding block corresponding to the groove is arranged at the other end of the plate body, a clamping block is fixed to one end of the plate body, a clamping groove corresponding to the clamping block is formed in the other end of the plate body, an open groove is formed in the plate body, an L-shaped groove is formed in the position of the open groove, and the L-shaped groove is connected with the protruding block. An L-shaped plate is connected to the L-shaped groove in a sliding mode, a gasket is fixed to the L-shaped plate, and a transverse groove matched with the gasket is formed in the plate body. According to the utility model, the clamping block of one plate body is clamped with the clamping groove of the other plate body, the square groove is also clamped with the square block at the moment, under the action of the gasket, the connecting gap of the two plate bodies can be sealed, rainwater is effectively prevented from entering the connecting gap of the plate bodies, and under the matching of the groove and the convex block as well as the clamping block and the clamping groove, the two plate bodies are connected more firmly, and the service life of the plate bodies is prolonged. And the phenomenon of loosening is not easy to occur.

The invention relates to vehicle tires with a tread having at least one shoulder-side profile rib (1) bounded by a shoulder-side circumferential groove (2), comprising an inner section (11), a shoulder section (12), a rib outer surface (1a), and groove-cut combinations (K) consisting of a transverse groove (3) extending at least in the shoulder section (12) and a cut (9) extending from the transverse groove (3) towards the shoulder-side circumferential groove (2). wherein the transverse groove (3) on the outer surface of the rib (1a) has an end edge (4) and an end flank (3d) extending towards the end edge (4) and wherein the incision (9) has an incision opening (9e) located on the end flank (3d) of the transverse groove (3). The incision (9) opens into the shoulder-side circumferential groove (2) and divides the end edge (4) into two end edge sections (4a), whereby the incision opening (9e) located on the end flank (3d) of the transverse groove (3) is surrounded by the end flank (3d) in a U-shape.

The invention relates to a combination of a disc pin cylinder lock (3) and a key (2), the disc pin cylinder lock (3) comprising a rotation limiting device (10) for the key. The rotation limiting device comprises a main body (13) having a key profile opening (34), and a guide element (12) connected to the main body. The key (2) comprises guide grooves (21) located on both sides of the key in the longitudinal direction of the key shank (2A), and a transverse groove (19) transverse to the longitudinal axis of the shank (2A) of the key (2). The rotation limiting device (10) comprises one or two plates (14).

This invention discloses an adjustable shaped charge device and its blasting method for bench blasting in open-pit mines, relating to the field of engineering blasting technology. The adjustable shaped charge device includes: an adjustable shaped charge liner, lifting holes, a sheath, a transverse groove, a cross-shaped buckle, an adjustable liner, linear shaped charge slots, and a bottom cylindrical counterweight. Lifting holes are provided on both sides of the top of the adjustable shaped charge liner. A sheath and a transverse groove are provided on the upper part of the inner wall of the adjustable shaped charge liner. The sheath is detachably connected to the adjustable liner via cross-shaped buckles. The linear shaped charge slots are provided at both ends of the adjustable liner, and the bottom of the adjustable liner is fixedly connected to the bottom cylindrical counterweight. The entire adjustable shaped charge device is placed at the bottom of the blast hole. This invention solves the problems of uneven energy distribution, unstable fragmentation effect, and high root ratio and large block ratio in existing technologies under complex rock strata conditions.

The utility model provides a wall -hanging indoor air purification device belongs to air purifier technical field, including air purifier body, the vertical groove, horizontal groove and oblique groove of setting up in air purifier body one side outer wall, horizontal groove is located between vertical groove and oblique groove and is linked together, two fender strips of symmetry of being equipped with in the inner side wall of vertical groove, horizontal groove and oblique groove, fender strip two of being equipped with in the inner side wall of vertical groove, the docking platform of being equipped with in air purifier body one side position place, the fixed seat of integrative molding in the docking platform outer side wall central position place, the utility model passes through the docking platform to the air purifier body of being set in its outside in vertical direction support, and utilizes fender strip one and fender strip two in horizontal direction limit, realizes air purifier body and docking platform docking firm and stable, and horizontal sleeve joint's mode is convenient for air purifier body dismounting, and is convenient for overhauling, and the difficulty of overhauling is low.

The utility model discloses a draggable bottom frame which comprises a base, two sets of transverse groove plates are fixedly installed on the top of the base, the base is made of high-strength alloy steel, two sets of lifting lug shafts are fixedly installed on the transverse groove plates, lifting lug shaft plates are fixedly arranged at the outer side ends of the lifting lug shafts, and the transverse groove plates are connected through two sets of vertical groove plates. The outer sides of the vertical groove plates are connected with end steel channels through a plurality of sets of end reinforcing plates, the two ends of the end steel channels are fixedly connected with the transverse groove plates through connecting plates, the bottoms of the end steel channels are fixedly connected with the base through inclined bottom frame blocking plates, and dragging grooves are fixedly formed in the outer sides of the end steel channels. The end steel channels are installed above the base, the dragging grooves are fixedly formed in the outer sides of the end steel channels, the bottom frame can be dragged to move through the dragging grooves in the later period, meanwhile, the base is made of high-strength alloy steel, and the moisture absorption layer and the anti-skid layer are fixedly arranged on the inner sides of the dragging grooves in sequence. Therefore, the wear resistance of the base during dragging is further improved.

The utility model discloses a kind of block wall structure with anti-infiltration structure, it is related to block wall technical field, including block body, the upper surface outer edge of the block body is provided with transverse groove, the lower surface outer edge of the block body is provided with transverse protrusion, the transverse protrusion is matched with the transverse groove of adjacent block body, the left side surface outer edge of the block body is provided with vertical protrusion, the right side surface outer edge of the block body is provided with vertical groove, the vertical groove is matched with the vertical protrusion of adjacent block body, positioning assembly is provided on the block body;The utility model is formed by transverse protrusion and transverse groove, vertical protrusion and vertical groove, and "Z" shape masonry gap, so that there is height difference and distance difference between outer edge and internal masonry gap, effectively block rainwater into wall interior.

This utility model discloses a motor housing explosion-proof pressure-resistant testing device, including a base and two mounting mechanisms mounted on the base. Each mounting mechanism includes a transverse groove vertically extending along the length of the base on one side of its upper surface. A threaded rod is laterally rotatably connected to the middle of the inner surface of the groove, and a threaded sleeve is threadedly connected to the outer surface of the threaded rod. A slider adapted to the length of the groove is slidably connected inside the transverse groove. A through groove adapted to the threaded sleeve is laterally extended through the middle of the side surface of the slider, and the threaded sleeve is vertically slidably connected inside the through groove. Bolt slots extending along the length of the base are vertically extended through the upper surface of the slider and at both ends of the threaded rod. This device features two mounting mechanisms on the base, with elongated bolt slots on the sliders of both mechanisms, and both sliders are capable of lateral movement. This allows the device to adapt to various motor models, thereby improving its versatility.

The utility model discloses a steel grating cutting device, and relates to the technical field of steel grating cutting. The steel grating machining device comprises a machining table, a steel grating body is movably installed at the top end of the machining table, a supporting base is fixedly installed on the left side of the top end of the machining table, a direction groove is formed in one end of the supporting base, a first screw rod is rotatably installed on the inner side of the direction groove, and a movable frame is connected to the outer side of the first screw rod in a threaded and sleeved mode. A second screw rod is rotationally mounted on the inner side of the moving frame, and the outer side of the second screw rod is in threaded connection with a moving block in a sleeving mode; through cooperation of a first motor, a second motor, a first screw rod, a second screw rod, a moving frame and a moving block, a longitudinal block slides in a longitudinal groove to guide the moving frame, and a transverse block slides in a transverse groove to guide the moving block, so that a telescopic rod and cutting equipment are controlled to move at will above a steel grating body, cutting is conducted at will, and the cutting flexibility is improved; and the requirement for cutting different size parameters is met conveniently, and practicability is improved.

The present invention provides a tire having excellent drainage performance. The tire (1) has a tread portion (2). The tread portion (2) is formed with a first circumferential groove (10) and a second circumferential groove (20) extending along the tire circumference, and a transverse groove (40) connecting the first circumferential groove (10) and the second circumferential groove (20). The first circumferential groove (10) extends in a zigzag shape. The first circumferential groove (10) includes a first portion (11) with the smallest width and a second portion (12) arranged on the inner side of the tire radial direction than the first portion (11) and having a width greater than the first portion (11).

The utility model discloses a special tire for a new energy bus in rainy and snowy days and a tread pattern, and belongs to the technical field of tires. The tread patterns comprise longitudinal pattern blocks and longitudinal grooves which are distributed in the circumferential direction of the tire tread; the longitudinal pattern blocks sequentially comprise outer side tire shoulder pattern blocks, first longitudinal pattern blocks, central pattern blocks, second longitudinal pattern blocks and inner side tire shoulder pattern blocks; the outer side tire shoulder pattern block comprises a first transverse groove; the first transverse groove is Z-shaped, and the widths of the upper end and the lower end of the first transverse groove are gradually reduced towards the tail end; a first cutter groove and a second cutter groove are formed in the central pattern block, and the first cutter groove is in a broken line shape; chamfers are arranged at the two ends of the second cutter groove. According to the tire tread pattern, efficient outer side drainage of the new energy bus tire under the rainy and snowy weather condition is achieved, the adverse effect of inner side drainage splashing is avoided, and the good wet land antiskid performance is provided.

The utility model discloses a palate bead forming device which comprises an upper half mold and a lower half mold, the upper half mold and the lower half mold are the same in structure, each of the upper half mold and the lower half mold comprises a rectangular block, and a hemispherical palate bead forming cavity is formed in the middle of a mold closing surface of each rectangular block. The rectangular block is further provided with a transverse groove and a vertical groove which are used for placing a support rod of the appliance, the rectangular block is further provided with a discharging groove used for discharging redundant materials when a palate bead is formed, the transverse groove and the vertical groove are formed in the mold closing surface of the rectangular block, and the center line of the transverse groove is perpendicular to the center line of the vertical groove; and a mold closing positioning bulge and a mold closing positioning concave cavity are respectively arranged at four corners of the mold closing surface. According to the palate bead forming device disclosed by the utility model, the palate bead is directly formed on the bracket rod of the appliance, so that the consumed time for manufacturing the palate bead can be greatly shortened, and the palate bead can be ensured to be in a high-precision spherical shape.