100 results about "Inverted t" patented technology

The utility model belongs to the technical field of seats, and particularly relates to a lead screw long sliding rail gap eliminating structure which comprises an upper rail and a lower rail with an inverted T-shaped groove, and idler wheels arranged on the lower portion of the upper rail can roll in the T-shaped groove of the lower rail. Bearings capable of being in elastic rolling abutting connection with the inner upper wall of the T-shaped groove and eliminating gaps are arranged on the two side faces of the upper rail in the T-shaped groove in the length direction at intervals respectively. The gap eliminating structure has the advantages of being simple in structure, reasonable in space layout, good in gap eliminating performance and suitable for the seat sliding rail.

This utility model discloses a boar pen for livestock, comprising two mounting blocks. A first crossbar is fixedly installed between the bottoms of the opposite sides of the two mounting blocks. First railings are fixedly installed at equal intervals on the top of the first crossbar. An inverted T-shaped plate is fixedly installed between the upper parts of the two mounting blocks. The tops of the first railings are all fixedly connected to the inverted T-shaped plate. Adjustable rods that can be raised and lowered are movably installed on the tops of the two mounting blocks. A second crossbar is fixedly installed between the tops of the two adjusting rods. Second railings are fixedly installed at equal intervals on the bottom of the second crossbar. The second railings movably penetrate the inverted T-shaped plate and are staggered with the first railings. Movable sleeves are movably fitted onto the surface of each first railing. The movable sleeves are fixedly connected to the bottom of the adjacent second railings through connecting blocks. This boar pen has height and spacing adjustment functions, and its performance can meet the needs of boars throughout the entire feeding process from piglets to adult pigs.

The utility model provides an assembly type construction fence which comprises a precast concrete base, a fence supporting plate and a cylindrical connecting rod, an inverted-T-shaped mounting groove is formed in the front end of the precast concrete base in a penetrating mode, a plastic frame is fixed in the inverted-T-shaped mounting groove, and the lower end of the fence supporting plate is clamped in the plastic frame. Mounting through grooves are formed in the front and rear positions of the left side and the right side of the upper end of the prefabricated concrete base correspondingly, step fixing rings are horizontally fixed to the upper ends of the interiors of the two mounting through grooves correspondingly, reset springs are installed at the lower ends of the two step fixing rings correspondingly, and the multiple cylindrical connecting rods are arranged. In order to solve the problems that in the prior art, in the prior art, time is wasted during assembly or disassembly, and the follow-up construction efficiency is affected, the spring quick clamping structure is designed, the whole fence can be conveniently and quickly installed or disassembled, the disassembly and assembly time is effectively shortened, and then time can be saved for follow-up construction operation.

The application discloses an assembled superconducting maglev track structure and a construction method thereof, and belongs to the technical field of superconducting maglev tracks. The assembled superconducting maglev track structure comprises two inverted T-shaped tracks and a connecting frame, a plurality of interval arranged adjusting holes are arranged on each inverted T-shaped track, each adjusting hole is communicated with a first wire groove or a second wire groove, a first anchoring bolt is inserted in each adjusting hole, and a suspension guide coil or a traction coil is fixed at one end of the corresponding first anchoring bolt. Two interval arranged wheel running surfaces are formed at the top of the connecting frame, the connecting frame is located between the two inverted T-shaped tracks, and the two ends of the connecting frame are connected with the corresponding inverted T-shaped tracks through post-poured belts. The assembled superconducting maglev track structure provided in the application can not only reduce concrete pouring at a construction site, but also quickly and accurately fix the suspension guide coil or the traction coil, so that the construction efficiency is improved.

The utility model provides a cutter polishing device for machining, which comprises a top frame, polishing parts and a sliding chute, the top frame is of an inverted T-shaped structure on the right side, the upper end of the front side of the top frame is provided with a group of protective shells for protecting the polishing front side of a cutter, and the inner side of each protective shell is provided with a group of polishing parts for polishing the cutter. The grinding component comprises an electric cylinder, a worm, a worm gear and a grinding disc, and a group of guide rods used for driving the grinding disc to move up and down are arranged on the front side of the electric cylinder. The grinding layer is attached to the to-be-ground tool, the lower side of the to-be-ground tool is ground, the motor and the clamping base are used for driving the tool to adjust the rotating angle, so that grinding operation is conducted at different angles, and tool grinding chippings are collected and recycled through the recycling barrel.

The application discloses a general type of fastening and limiting device, which comprises bolt limiting blocks, the bolt limiting blocks are arranged in multiple and are arranged in general tethering holes for cooperating with mounting bolts of detachable structures or devices to realize rigid connection, the bolt limiting blocks are in inverted T-shaped cross section, the horizontal part of the bolt limiting block is invertedly buckled under the general tethering hole panel, and the vertical part is tightly embedded in the slot hole of the tethering hole panel; the general fastening and limiting device further comprises an expansion locking assembly composed of a cross mounting block, an expansion block, a pressing block and an expansion bolt, the pressing block extrudes the expansion block through the tightening process of the cross mounting block and the expansion bolt, so that the expansion block is deformed to limit the bolt limiting block in the tethering hole. The fastening and limiting scheme of the application is based on the tethering hole welded on the ship body, cooperates with various limiting assemblies and high-strength bolts, realizes the rigid connection of the detachable structures and devices and the tethering hole, and realizes the rigid connection with the ship body.

A post-tensioning system that is configured for use with concrete wind turbine foundation designs to post-tension the foundations and reduce the amount of reinforcement steel that is needed compared to conventional non-post-tensioned, steel reinforced concrete foundation designs. In the case of an inverted T gravity foundation, the post-tensioning system described herein reduces the amount of reinforcement steel that is required by 30-40 tons.

The utility model discloses a multilayer circuit board drilling positioning structure which comprises a base and a circuit board body. The multi-size adaptation assembly comprises inverted-T-shaped plates, strip-shaped bearing grooves, L-shaped sliding blocks, rectangular plates and positioning plates, the inverted-T-shaped plates are movably connected to the two ends of the base, the strip-shaped bearing grooves are formed in the side portions of the base, the two sides of the inverted-T-shaped plates are fixedly connected with one ends of the L-shaped sliding blocks, the other ends of the L-shaped sliding blocks are movably connected with the strip-shaped bearing grooves, and the rectangular plates are fixedly connected with the positioning plates. The side part of the inverted T-shaped plate is movably connected with a rectangular plate and a positioning plate, and the positioning plate is located above the circuit board body. The L-shaped sliding block can continuously move in the strip-shaped bearing groove, so that continuous movement of the inverted-T-shaped plate can be realized, namely continuous adjustment of the movement distance of the positioning plate can be realized, and clamping and positioning of multilayer circuit boards with different sizes can be realized.

This invention provides a biomimetic bud-removing claw for kiwifruit and its control method, comprising an inverted T-shaped frame, a clamping claw, a left suction claw, a right suction claw, an image detection system, and a control system. This biomimetic bud-removing claw dynamically monitors the pose of buds and pedicels using deep learning and stereoscopic vision. The clamping claw grips the main pedicel, while the biomimetic threads of the suction claw's fingertips grip the lateral buds. Based on pressure feedback, the rotation or contraction amplitude of the suction claw is adjusted to remove the lateral buds, achieving an effect similar to human hand-eye coordination during harvesting. This protects the main bud and pedicel from damage while achieving precise removal of lateral buds. The control method employs a deep fusion model of YOLOv8 and Mask RCNN to extract the main pedicel, left and right lateral buds, and their angle and orientation features, enabling the detection of kiwifruit pedicels and buds, and controlling the clamping and suction claws. Its effect is equivalent to a human's simultaneous observation, clamping, and harvesting control function.

The utility model relates to cutting device technical field, propose a kind of angle adjustable inorganic nonmetallic material cutting device, including workbench, the workbench top is equipped with inverted T type groove, inverted T type board is movably inserted in the inside of inverted T type groove, inverted T type board one end is equipped with first threaded hole, first threaded hole inside screw thread is connected with first screw rod, first screw rod penetrates first threaded hole, inverted T type board top surface edge portion is fixed with support cylinder, the support cylinder top end is fixed with support disc, the support disc middle part is equipped with through-hole. The utility model carries out cutting by fixing material on carousel, the transverse movement of inverted T type board in inverted T type groove can drive material adjusting position, the rotation of carousel can drive material adjusting angle, so that position and angle adjustment can be carried out after material fixing, determine appropriate cutting point position, without repeatedly disassembling material, simplify operation step, improve efficiency.

The invention is applied to the technical field of loudspeakers, and particularly discloses an ultrathin loudspeaker vibration unit and a vibration method thereof.The ultrathin loudspeaker vibration unit comprises a lower base, the lower base is inverted T-shaped iron, an upper base is arranged above the lower base, the upper base is of an annular structure, the upper base and the lower base are made of the same material, and the lower base and the upper base are made of the same material. The upper surface of the lower base is sleeved with the annular upper base. According to the ultra-thin loudspeaker vibration unit and the vibration method thereof, the T-shaped lower base and the T-shaped upper base are arranged to form the groove structure, the six spirally-stacked permanent magnet units are spliced in the groove structure to form the stacked permanent magnet structure, and the magnetic sheets are spirally stacked in the permanent magnet units, so that the magnetic field intensity is enhanced, and meanwhile, the ultra-thin loudspeaker vibration unit and the vibration method of the ultra-thin loudspeaker vibration unit are improved. The vertical space is greatly compressed through the annular nested layout of the upper base and the lower base, the thickness of the whole structure is remarkably reduced, and the ultra-thin requirement is met.

1. The name of the design product: steel joint connecting node. 2. The use of the design product: the design product is mainly used for the connection between prefabricated structural beams and structural columns, or between structural beams. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: assembly state perspective view. 5. Other circumstances that need to be explained: component 1 is a inverted T-shaped embedded part, component 2 is a few character-shaped embedded part, and component 1 and component 2 are used in combination.

The utility model discloses an assembly type facade flower stand which comprises stand columns, flower basket guide rails are detachably installed between every two adjacent stand columns, and inverted-T-shaped groove holes are formed in the flower basket guide rails in the length direction. The back surface of the flower basket is embedded into the inverted T-shaped groove hole of the flower basket fixing guide rail through a T-shaped weight; an irrigation pipeline mounting clamping position is reserved on the back surface of the flower basket; a ventilation groove is formed in the front face of the flower basket. The inverted-T-shaped groove holes are formed in the length direction of the flower basket guide rail, the flower basket can be rapidly assembled in the flower basket guide rail through the T-shaped codes and the inverted-T-shaped groove holes formed in the flower basket fixing guide rail in an embedded mode on the back face of the flower basket, the safety of the flower basket can be guaranteed, and the phenomenon that the flower basket falls off is greatly reduced.

The utility model provides a universal installation platform for a flight training simulator motion system, which comprises three groups of groove floors and three groups of adapter plates, and the three groups of groove floors are uniformly arranged at intervals of 120 degrees; the three groups of groove floor structures are the same in size, and the length, the width and the thickness are 4000 mm, 1200 mm and 100 mm respectively; the lower surface of each group of groove floor is a plane, N longitudinal columns of inverted T-shaped grooves and N + 1 longitudinal columns of fixing holes are formed in the upper surface of each group of groove floor at intervals, foundation bolts are arranged in the fixing holes, and each group of groove floor is fixed in a deep pit of a foundation through a plurality of foundation bolts; n is an integer; the top of the bolt hole expands outwards and is provided with a nut groove, the depth of the nut groove is not smaller than 50 mm, the foundation bolt is sleeved with a nut, the height of the nut ranges from 32 mm to 35 mm, and the head of the foundation bolt is higher than the nut by not smaller than 5 mm. First bolt holes and second bolt holes are formed in the adapter plate, the first bolt holes are arrayed and matched with the N longitudinal columns of inverted T-shaped grooves at intervals, and the second bolt holes are formed in the first bolt hole array; the adapter plate is fixedly connected with the groove floor through bolts arranged in the first bolt holes. A motion platform lower hinged support of each flight training simulator motion system is fixedly connected with the adapter plate through a bolt arranged in a second bolt hole, and then is fixedly connected with the groove floor; slope-shaped guide openings are formed in the two ends of the inverted-T-shaped groove.

The present application relates to a kind of ladder climbing disinfecting robot, including front caterpillar mechanism, middle caterpillar mechanism, rear caterpillar mechanism, inverted T-shaped connecting piece, disinfecting mechanism;The front caterpillar mechanism and the middle caterpillar mechanism are connected by the horizontal edge of the inverted T-shaped connecting piece hinge connection, and the middle caterpillar mechanism and the rear caterpillar mechanism are connected by the horizontal edge of the inverted T-shaped connecting piece hinge connection;The top of the vertical edge of the inverted T-shaped connecting piece and corresponding caterpillar mechanism are connected by elastic member;The front end of the front caterpillar mechanism is obliquely arranged upwards;The disinfecting mechanism includes water tank, and the spray device connected to the water tank, and the water tank is arranged on the middle caterpillar mechanism.

The utility model relates to a three-way pressing type waterproof connector, which comprises a connecting body, the connecting body is inverted T-shaped, three ports of the connecting body are provided with connecting terminals, one surface of each connecting terminal is provided with a plurality of limiting grooves, the connecting terminals are provided with connecting holes at corresponding positions below the limiting grooves, and the connecting holes are connected with the limiting grooves. Buckling grooves are formed in the two sides of the connecting terminal, and threads are arranged at a port, connected with the connecting terminal, of the connecting body. Through the design of the inverted-T-shaped connecting body and the connecting terminals, stable electrical connection and waterproof performance are realized. Due to multiple guarantees of the threaded structure, the limiting groove and the buckling groove, accurate alignment, tight attachment and high stability of connection are guaranteed, and the connector is suitable for various environments.

The invention provides a method and a device for testing the climbing ability of a highway tunnel horizontal rail robot, and aims to solve the problems that the friction coefficient is reduced and theoretical calculation and actual working conditions are disjointed due to rail pollutants in a tunnel, the height of a rail is adjusted through step-by-step decreasing, and a critical climbing angle is judged in combination with a laser sensor; parameters such as a rolling friction coefficient and an air resistance coefficient are introduced to evaluate the gradeability, and the defect that a traditional test method neglects environmental influence is overcome. The device adopts the design of an inverted T-shaped base bracket and a modular track, and a graded counterweight superposition test is added, so that the wide-angle working condition coverage range is expanded. According to the invention, an accurate evaluation basis is provided for tunnel robot design, and the accuracy of a robot climbing test is improved.

The utility model discloses a light simple net rack convenient for yam vine climbing, which comprises a support and a hanging net. The support comprises a base frame and a plurality of side frames. The base frame is in the shape of an inverted T. The horizontal part is embedded in the soil to increase the contact area and improve the stability. The top surface of the vertical part is provided with an open slot. The side frame is composed of two hollow tubular side rods hinged at the ends. The distal ends of the two side rods are provided with movable limiting columns. The side walls of the open slot are provided with a plurality of limiting holes along the length direction. The limiting columns and the limiting holes cooperate to fix the side frame. A telescopic reinforcing rod is arranged between the two side rods to form a stable triangular structure to enhance the stability of the support. The hanging net is provided with a plurality of hooks at both ends. The side rods are provided with a plurality of hanging rings on the left and right sides. The hanging net is installed on the adjacent side rods of the support through the hooks and the hanging rings. The net rack structure is simple. The angle of the side frame is easy to adjust, and the installation is efficient. The side rod is light and durable, and the wind resistance is better than that of the traditional simple net rack.

The utility model relates to a multi-dimensional measuring rod fixing device. The multi-dimensional measuring rod fixing device comprises a semicircular clamping ring, a U-shaped bracket, an L-shaped adapter frame and an L-shaped reinforcing frame, the L-shaped reinforcing frame comprises an adjusting plate and a reinforcing plate which are fixedly connected with each other, and the adjusting plate and the reinforcing plate are vertically and fixedly connected; the two semicircular clamping rings are respectively connected with the upper plate and the lower plate and are used for fixing the measuring rod; the connecting plate is connected with the lower plate, a T-shaped penetrating groove is formed in the middle of the connecting plate, the L-shaped reinforcing frame is adjusted and fixed according to the width of a transverse ship edge or the height of a vertical ship edge through the inverted T-shaped penetrating groove, and the steering plate is used for connecting the vertical ship edge with the lower plate; an inverted-T-shaped penetrating groove is formed in the middle of the adjusting plate, and the L-shaped transfer frame is adjusted and fixed according to the width of the transverse ship edge or the height of the vertical ship edge through the T-shaped groove. According to the utility model, the installation difficulty of different types of edges of the surveying vessel is solved, the relative fixation of the surveying instrument and the surveying vessel in the measurement process is ensured, the observation precision is improved, and the safety and result quality of the surveying instrument are ensured.

The present disclosure relates to the technical field of hardware fittings, and in particular to a quick disassembly and assembly type connecting structure, including a quick-release pin head and a quick-release pin seat. The quick-release pin head and the quick-release pin seat are slidably arranged. A cross section of a slideway of the quick-release pin seat is of an inverted T-shaped structure. The quick-release pin head is slidably in close fit with the slideway. A mounting plate is welded and fixed to an end of the quick-release pin head. The quick-release pin head and the quick-release pin seat are slidably arranged and thus can be quickly spliced. Compared to a screw or welding mounting method, better flexibility is achieved. In the transfer of an object equipped with the quick-release structure, the quick disassembly and assembly type connecting structure can be separated for transportation, thereby reducing an occupation of space.

The utility model relates to the technical field of electrified railway contact networks in the traffic transportation industry, in particular to a bird repelling shoulder frame device for traffic transportation, which comprises a shoulder frame body, the shoulder frame body comprises a triangular hollow pipe, a pin header, an inverted T-shaped bolt and a nut, and the section of the triangular hollow pipe is a right triangle with a right-angle side horizontally placed. A plurality of pin headers in the vertical direction are evenly distributed at the vertex angle of the triangular hollow pipe, a cutting groove is formed in the horizontal bottom face of the triangular hollow pipe in the length direction, a T-shaped head of the inverted-T-shaped bolt is arranged in the triangular hollow pipe, a threaded rod of the inverted-T-shaped bolt penetrates out of the triangular hollow pipe from the cutting groove, and the nut is connected to the threaded rod of the inverted-T-shaped bolt. According to the bird repelling shoulder frame device for the overhead contact system additional wire, the problems of bird falling and nesting on a railway operation line shoulder frame are solved, various short-circuit tripping faults, caused by bird damage, of the overhead contact system are effectively avoided, the safety and reliability of an overhead contact system are improved, and the workload of a railway operation and maintenance department is reduced.

The invention discloses mechanical equipment metal filing oil-liquid separating and drying equipment which comprises a bottom frame of an inverted-T-shaped structure, a top frame is installed at the top of the bottom frame in a vibrating mode, connecting plates are adjustably arranged on the two sides of the top frame, and meanwhile an adjusting assembly installed on the inner side of the top frame can control the connecting plates on the two sides to rotate oppositely and be in an inclined state. The screening device further comprises two screening assemblies, and the two screening assemblies are detachably installed on the sides, away from each other, of the two connecting plates. The two screening assemblies are installed on the two connecting plates correspondingly, the connecting plates are rotationally installed on the top frame, and meanwhile the adjusting assembly installed in the top frame can control the connecting plates to drive the screening assemblies to rotate, so that synchronous reverse rotation of the two screening assemblies can be achieved, and then the two screening assemblies are located in different inclined directions; therefore, when one screening assembly receives and separates the metal filings and the oil liquid, the other screening assembly removes the intercepted metal filings, and the situation that the screening efficiency is affected due to the fact that a certain screening assembly continuously works for a long time is avoided.

Product application assembly for a body surface and associated method. The assembly (10) comprises a pad (14) containing product detachable from a support element (26). It includes an applicator (12), comprising: - a handle (50), extending along a first axis (D-D'), and - a head (52), extending along a second axis (E-E'), the head (52) comprising a profile (72) with a U-shaped cross-section, having folded wings (78A, 78B) defining a notch (80) with an inverted T-shaped cross-section. The pad (14) is translationally movable along the profile (72) between a position disengaged from the profile (72) and a position engaged in the profile (72) in which the support element (26) is received in the notch (80) with tightening of the fastening portion (40). Figure for the abbreviation: Figure 1

The utility model relates to the technical field of supporting bases, in particular to a cabinet supporting base. According to the technical scheme, the device comprises a supporting plate and a plurality of rolling wheels arranged at the bottom end of the supporting plate, and further comprises a supporting auxiliary assembly arranged at the bottom end of the supporting plate, an inner cavity is formed in the supporting plate, and a transmission mechanism for controlling the supporting auxiliary assembly is arranged in the inner cavity. According to the cabinet, the supporting auxiliary assembly is arranged at the bottom end of the supporting plate, when the cabinet is normally used, the two extrusion blocks are located at the upper ends of the two sliding blocks correspondingly, the vertical positioning effect on the two sliding blocks is achieved, then the bottom end of the U-shaped supporting plate makes contact with the ground, the stress of a plurality of rolling wheels is shared, and the service life of the cabinet is prolonged. Damage to the rollers due to long-time use is avoided; and after the two extrusion blocks are far away from the inverted-T-shaped groove, the U-shaped supporting plate can move upwards, so that the supporting plate can be normally moved.

The application discloses an inverted T-shaped dewatering well, which comprises a horizontal pipe and a vertical pipe, the horizontal pipe comprises a horizontal outer sleeve pipe and a horizontal inner pipe, the horizontal inner pipe is coaxially sleeved in the horizontal outer sleeve pipe, the vertical pipe passes through the horizontal outer sleeve pipe and is communicated with the horizontal inner pipe, the two ends of the horizontal outer sleeve pipe and the horizontal inner pipe are respectively sealed by sealing plates, and water-permeable holes are formed in the sealing plates. A construction method for reducing the thickness of cofferdam sealing bottom by using the inverted T-shaped dewatering well is also provided. The construction method for reducing the thickness of cofferdam sealing bottom by using the inverted T-shaped dewatering well can effectively reduce the thickness of sealing bottom concrete and the amount of dredging in the cofferdam, and reduces the construction difficulty, saves the construction period and construction cost, compared with the traditional construction method for deep water area lock steel pipe pile cofferdam sealing bottom concrete.

The utility model discloses a tool for measuring the flange angle of a cylindrical roller bearing ring. The tool comprises a base, three base fulcrums, two spring supporting legs, a movable supporting leg and a measuring meter. A first inverted-T-shaped groove is formed in the transverse center line of the top face of the base, a second inverted-T-shaped groove is formed in a line which forms an angle of + 45 degrees with the transverse center line, and a third inverted-T-shaped groove is formed in a line which forms an angle of-45 degrees with the transverse center line. The three base fulcrums are mounted in the first inverted T-shaped groove, the second inverted T-shaped groove and the third inverted T-shaped groove of the base in a one-to-one correspondence manner; the two spring supporting legs are installed in the second inverted-T-shaped groove and the third inverted-T-shaped groove in a one-to-one correspondence mode. The movable supporting leg is installed in the first inverted-T-shaped groove and is opposite to the base fulcrum installed in the first inverted-T-shaped groove. The measuring meter is installed in the first inverted-T-shaped groove of the base through a meter seat. The flange angle measuring device is simple in structure, convenient to disassemble and assemble and capable of meeting the requirement for measuring the flange angles of cylindrical roller bearing rings of various sizes.

The utility model relates to the technical field of blank piece transferring for casting workshops, in particular to a blank transporting device for a precision casting workshop. Mounting plates are arranged on the left side and the right side of the upper end of the outer side face of the circulating track, the mounting plates are connected with a supporting frame, a main shaft is mounted at the upper end of the outer side face of the supporting frame, and a chain wheel is rotationally connected to the lower end of the outer side face of the main shaft and arranged at the corner of the circulating track; the number of the chain wheels is consistent with that of corners of the circulating track, a power mechanism for controlling the chains to rotate along the circulating track is installed at the upper end of the outer side face of the supporting frame, and the multiple chain wheels are connected together through the chains; suspension type transportation and lifting type transportation are combined together, workpieces can leave the ground, friction and collision between the workpieces and the ground are avoided, damage caused by uneven ground or sundries is reduced, the workpiece transportation efficiency is greatly improved, and the problems in the background technology can be effectively solved.

The present application relates to the technical field of forging forming, in particular to a kind of high-temperature alloy annular forging forming process of inverted T-shaped section, according to the size of annular forging, cutting suitable length of bar stock;Blank upset, then using punch to form blank;Using ring rolling machine to be rolled into rectangular section ring piece;Using first tooling to constrain blank to be formed;Using second tooling to constrain ring piece to be formed, the second tooling includes upper end special-shaped pressing plate and lower end special-shaped pressing plate, the upper end special-shaped pressing plate and the lower end special-shaped pressing plate are provided with annular step on end face, ring piece is arranged between upper end special-shaped pressing plate and lower end special-shaped pressing plate, lower end special-shaped pressing plate is pressed, and inverted T-shaped annular forging is formed.The present application increases the preforming process of mould after ring rolling, cancels the cogging, and meets the limit height of ring rolling machine equipment production capacity, then carries out axial end pressure and the restriction of mould cavity, to realize the inside diameter special-shaped forming of ring piece.

The utility model discloses a concrete beam column frame structure which comprises a bearing column and a main beam, the bearing column comprises a connecting beam arranged on the side face of the bearing column, meshing teeth a arranged at the top of the connecting beam and an inverted-T-shaped connecting piece arranged in the connecting beam, and the main beam is arranged on the side face of the bearing column. The main beam comprises meshing teeth b arranged on the side face of the connecting beam, an inverted-U-shaped connecting piece arranged in the main beam and a bolt set arranged on the side face of the main beam and used for connecting the bearing column and the main beam, the meshing teeth b are connected with the meshing teeth a in a clamped mode, and the inverted-T-shaped connecting piece is connected with the inverted-U-shaped connecting piece in a clamped mode. The meshing teeth a and the meshing teeth b are connected in a clamped mode so that the bearing column can be connected with the main beam. By arranging the bearing column and the main beam, when the bearing column and the main beam are connected with each other, the meshing teeth b and the meshing teeth a can be meshed and clamped with each other, so that the bearing column and the main beam can be quickly matched, and the mounting and connecting operation can be completed through the bolt group.

A three-stage plug-in bite sealing connection structure with a built-in waterstop strip includes a two-cavity side panel, a three-cavity side panel and an expansion waterstop strip. The two-cavity side panel and the three-cavity side panel 2 are connected by plug-in bite sealing, and the expansion waterstop strip expands when exposed to water to achieve sealing between the two. The two-cavity side plate includes a large cavity and a small cavity, with inverted T-shaped convex bodies on both sides of the large cavity, and inverted T-shaped convex bodies and inverted L-shaped convex bodies on both sides of the small cavity; the three-cavity side plate includes a left cavity, a middle cavity and a right cavity, with inverted L-shaped convex bodies and J-shaped convex bodies on the left and right sides of the left cavity, respectively, J-shaped convex bodies and inverted J-shaped convex bodies on both sides of the middle cavity, and inverted J-shaped convex bodies and T-shaped convex bodies on the left and right sides of the right cavity; the expansion waterstop strip is inserted and fixed in the middle cavity; it has a simple structure, and the insertion is smooth, light and unobstructed. During the insertion process, the expansion waterstop strip will not be cut off, or shrink and gather, and will not be damaged, and the amount of expansion waterstop strip used is small, and the sealing performance is stable and reliable.