242results about How to "The connection structure is stable and reliable" patented technology

The invention belongs to the technical field of atmospheric infrared detection equipment, and particularly relates to an infrared transmitting device and an infrared receiving device of the atmospheric infrared detection equipment. The overall pitching and left and right sweeping of the infrared detection equipment are achieved through a two-axis turntable. The equipment is simple in transmission structure, good in stability and high in adjustment precision, thus the installation and focusing efficiency and focusing precision of the infrared detection equipment are greatly improved. According to the equipment, a lens is installed on a movable support; the movable support is installed on a slider arranged on the barrel wall of a Casher reflection telescope; the position of the lens in the Casher reflection telescope can be adjusted in real time from the outside of the Casher reflection telescope; the operation is simple and convenient; the equipment assembly and maintenance efficiency are improved; the fast connection and positioning of the Casher reflection telescope and the turntable are achieved by using a dovetail type plug-in structure; the connecting structure is stable and reliable; the installation precision is high.

The invention discloses an automobile safety chair for a child. The automobile safety chair comprises a base, a chair body and a headrest; a slideway seat is arranged on the base; a first guide chute is formed in the bottom of the chair body; a first slide rod which is in sliding fit with the first guide chute is arranged on the slideway seat; a lifting block is arranged between the chair body and the base; a second guide chute is formed in the slideway seat; a second slide rod and a third slide rod which are in sliding fit with the second guide chute are respectively mounted on the lifting block; a plurality of limiting grooves are formed in the wall of the second guide chute in parallel; a back plate is fixedly connected to a chair back of the chair body, and a headrest plate is arranged between the chair back and the back plate; a pull rod is vertically arranged on the headrest plate, and a pull rod spring is arranged between the pull rod and the headrest plate; a lower locking block is hinged to the bottom end of the pull rod through a lower linkage arm, and a plurality of back plate locking holes which are in locking fit with the lower locking block are formed in the side of the back plate from top to bottom. The automobile safety chair disclosed by the invention is simple and reasonable in structure, convenient to operate, reliable in position adjustment and higher in safety.

The invention relates to an aerospace oxygenerator which comprises a case, a compressor, a distribution valve, a gas cylinder and two molecular sieves, wherein a bottom plate for packaging is arranged at the bottom of the case; a compression system box is arranged on the bottom plate; the compressor is supported in the compression system box; a gas inlet mechanism is arranged at the lower part of the front end face and/or the rear end face of the case, and communicated with the compressor by a gas inlet silencer; the compressor is connected with the two parallel molecular sieves by the distribution valve respectively; the two molecular sieves are connected with the gas cylinder by the distribution valve; the distribution valve is communicated with a gas outlet silencer; the gas outlet silencer is communicated with the compression system box; and the compression system box is communicated with an exhaust mechanism arranged at the lower part of the left side face and/or the right side face of the case. The aerospace oxygenerator is compact in structure, convenient, quick, stable and safe to use, easy to dismount and clean, and noise-free; the use comfort can be ensured effectively; and the service life can be prolonged.

The invention relates to a snap spring fixing type rectangular electric connector. The electric connector comprises a housing and an insulating assembly, wherein the inner end face of the insulating assembly is attached to a heavy platform in the housing correspondingly, more than one snap spring slots are arranged on one or more side walls of the insulating assembly, more than one positioning bosses are arranged on one or more inner walls of the housing, snap springs which are pressed in the snap slots tightly by the housing inner walls are arranged in snap spring slots, and the snap springs abut against the sides of the positioning bosses, which face to the inside of the housing. The snap spring slots and through slots which are communicated are arranged on the insulating assembly, positioning bosses in the housing are inserted in through slots correspondingly, snap springs in snap spring slots press tightly, and the insulating assembly and the housing are clamped fixedly. The connector is simple in structure, firm, free from clearance, suitable to harsh environment, not easy to damage, stable in use and long in service life.

The invention discloses a manufacturing method of a bridge pier. The manufacturing method of the bridge pier comprises the following steps of obtaining a pier stud prefabricated part and a capping beam prefabricated part, wherein a pier stud prefabrication chamber extending in the axial direction is formed in the pier stud prefabricated part; a capping beam prefabrication chamber is formed in thepier stud prefabricated part; a connecting rib extending upwards is arranged on the pier stud prefabricated part; the pier stud prefabricated part is placed on a mounting surface; concrete is injectedinto the pier stud prefabrication chamber from an opening in the upper end of the pier stud prefabrication chamber to be cured to form a pier stud concrete layer; the capping beam prefabricated partis mounted at the upper part of the pier stud prefabricated part, and the connecting rib is enabled to extend into the capping beam prefabrication chamber; and concrete is injected into the capping beam prefabrication chamber to be cured to form a capping beam concrete layer connected with the pier stud concrete layer and the connecting rib. According to the manufacturing method of the bridge pierdisclosed by the embodiment of the invention, the site construction procedure is simple, the construction speed is increased, the construction safety is enhanced, adverse effect of a traditional fullcast-in-situ process on traffic environment is avoided, and moreover, the connection between a pier stud and a capping beam is firmer.

The invention provides a turnover cabinet, comprising a cabinet frame, a cabinet body, an upper guide overturning module and a lower guide overturning module, wherein the cabinet body is arranged in the cabinet frame and can overturn at 180 degrees relative to the cabinet frame; the upper guide overturning module and the lower guide overturning module are connected with the inner wall of the cabinet frame and the cabinet body; the upper guide overturning module is fixedly connected with the top wall of the cabinet frame and is movably connected with the top end of the cabinet body; the lower guide overturning module is fixedly connected with the bottom wall of the cabinet frame and is movably connected with the bottom end of the cabinet body; the upper guide overturning module and the lower guide overturning module make synchronous movement while a horizontal acting force is applied onto the cabinet body, thus enabling the cabinet body to rotate relative to the cabinet frame. The turnover cabinet can overturn at 180 degrees, and occupies a smaller space; furthermore, the front and back of the cabinet body of the turnover cabinet are set into different functional areas, so that a user can overturn the turnover cabinet to the corresponding functional area as required.

The invention discloses a shield interval tunnel connection channel segment supporting structure. The shield interval tunnel connection channel segment supporting structure comprises a segment ring formed by splicing a plurality of segments and an annular steel supporting structure connected around the inner side of the segment ring in the circumferential direction. Splicing screw holes are formedin the middles of the inner sides of the segments, and splicing bolts in threaded fit with the splicing screw holes are arranged corresponding to the splicing screw holes. The annular steel supporting structure comprises arched steel supporting pieces with the number consistent with that of the segments, and every two adjacent arched steel supporting pieces are detachably connected. Via holes areformed in the positions, corresponding to the splicing bolts, of the middles of the arched steel supporting pieces, and the arched steel supporting pieces penetrate through the via holes through thesplicing bolts to be screwed into the corresponding splicing screw holes to be detachably connected with the corresponding segments. Telescopic mechanisms are arranged between the arched steel supporting pieces and the corresponding segments. The shield interval tunnel connection channel segment supporting structure is simple in structure and convenient and fast to assemble and disassemble, constructors and materials can enter and exit conveniently, and the construction period of a shield connection channel is effectively shortened.

The invention discloses a constant velocity universal joint structure with a locking structure. The constant velocity universal joint structure comprises a ball cage body, a clamp spring, a locking rod, a push rod, a telescopic spring and a locking rod. The push rod is connected with the ball cage body in a sliding manner, one end of the telescopic spring is connected with the push rod, the other end of the telescopic spring is connected with the ball cage body, and the locking rod is rotationally connected with the ball cage body. A clamping groove is formed in the side wall of one side of the locking rod, one end of the push rod is matched with the clamping groove and arranged in the clamping groove, a locking inclined face is arranged on the side wall of the push rod, a limiting ring groove is formed in the outer side wall of the ball cage body, the clamp spring is arranged in the limiting ring groove in a sleeved mode, one end of the locking rod makes contact with the locking inclined face, and the other end of the locking rod makes contact with the inner wall of the clamp spring. According to the constant velocity universal joint structure with the locking structure, the connecting structure of the ball cage body is convenient to disassemble and assemble and is slightly limited by space; and the connecting structure of the ball cage body is more reliable.

The invention relates to an integrated wood formwork. The integrated wood formwork comprises a face plate, a plurality of wood longitudinal beams and a plurality of steel pipe horizontal beams; the plurality of wood longitudinal beams are pressed on the outer side surface of the face plate through the plurality of horizontally arranged steel pipe horizontal beams; a plurality of cotter holes respectively corresponding to the plurality of steel pipe horizontal beams are formed in the wood longitudinal beams; a plurality of U-shaped cotters are inserted in the plurality of cotter holes respectively; and the two ends of each U-shaped cotter are fastened and connected on each steel pipe horizontal beam corresponding to each U-shaped cotter. According to the invention, the integrated wood formwork is formed by locking and pressing the wood longitudinal beams and the steel pipe horizontal beams on the face plate through the U-shaped cotters and 3-shaped clips, and has the advantages that the structure is simple, the connection is stable and firm, the assembly and disassembly are convenient, the service life of the material is long, recoverability is realized and the resource is saved; a plurality of integrated wood formworks can be jointed together and used in a combined manner, so as to meet the requirements of different application specifications; and the applicability is wide.

The invention relates to a pipeline bus and a detachable bus unit of the pipeline bus, which can be used to solve the technical problem that the bus unit is inconvenient to disassemble in the prior art. The detachable bus unit of the pipeline bus includes a cylinder, a conductive rod and insulators supporting the conductive rod. The conductive rod includes a conductive connecting rod and an adapter. The insulators include a fixed supporting insulator and a movable supporting insulator. The fixed supporting insulator is equipped with a conductive insert. An adapter fixing structure is arrangedat the left end of the conductive insert, and a connecting rod fixing structure is arranged at the right end of the conductive insert. The overall length of the conductive connecting rod is less thanthe length of the cylinder, and is larger than the distance between the right end of the fixed supporting insulator and the right opening of the cylinder. The overall length of the adapter is larger than the distance between the left end of the fixed supporting insulator and the left opening of the cylinder, and the length of the adapter for insertion fit with the conductive rod in an adjacent busunit on the left is smaller than the dimension of the fixed supporting insulator in the left-right direction.

The invention provides a solid tire with replaceable abrasion-resistant rubber. The solid tire comprises a rim, two tire side bodies and a plurality of movable abrasion-resistant rubber blocks. The two tire side bodies are nested in the outer side of the rim and are parallelly arranged on two sides of the rim, abrasion-resistant tire mounting grooves are formed in positions between the two tire side bodies, the multiple movable abrasion-resistant rubber blocks are arranged in the abrasion-resistant tire mounting grooves and are detachably connected with the rim, and solid tire working surfaces are jointly formed by the outer surfaces of the two tire side bodies and the outer surfaces of the movable abrasion-resistant rubber blocks. The solid tire has the advantages that the movable abrasion-resistant rubber blocks arranged in the middle of the solid tire are the most vulnerable to abrasion in solid tire working procedures, the movable abrasion-resistant rubber blocks can be directly replaced if replacement standard requirements are met by abrasion degrees of the movable abrasion-resistant rubber blocks in service procedures, and accordingly the service life of the solid tire can be greatly prolonged.

The invention discloses a stable-connection displayer suspending assembly. The stable-connection displayer suspending assembly is used for carrying a displayer in a suspended mode, and comprises a left arm plate (2), a right arm plate (21), an upper supporting rod (3), a lower supporting rod (4) and a displayer carrying frame (10), wherein the left arm plate (2) and the right arm plate (21) are used for being fastened to a top wall (1) in a spaced mode, the upper supporting rod (3) and the lower supporting rod (4) penetrate through the left arm plate (2) and the right arm plate (21) in the left-and-right direction, and the displayer carrying frame (10) is fixedly connected with the displayer. The upper supporting rod (3) comprises an upper supporting rod body and a thread pushing driving piece (6) axially and fixedly connected with the left end of the upper supporting rod body through an upper thrust bearing (36), and the lower supporting rod (4) comprises a lower supporting rod body and a thread pulling driving piece (8) axially and fixedly connected with the left end of the lower supporting rod body through a lower thrust bearing (48).

The invention discloses a connecting structure of a non-metallic pipe and a metal plate; and the connecting structure can realize connection between the non-metallic pipe and a hole in the metal plate by a connecting mode of a concave cavity and internal extrusion without needing chemical bonding, and is stable and reliable. The connecting structure is more suitable for connection of a fluorine-contained plastic pipe with high chemical stability and the metal plate, can be effectively applied to sealing connection between a heat exchange pipe of a heat exchanger and a metal pattern plate under the working conditions of high temperature and high corrosion, can save the cost, greatly improves the sealing strength, and prolongs the equipment service life.

The invention discloses a firm section material connection structure. The section material connection structure comprises a first section material unit and a second section material unit, wherein the first section material unit comprises a first embedding pit of which the left wall is a left side plate and the right wall if a middle column, and a second embedding pit of which the left wall of the middle column and the right wall is a right side plate or a right side plate combination; the second section material unit comprises a middle column containing pit; the left wall of the middle column containing pit is a first connecting hook of which the tail end is fixed in the first embedding pit, and the right wall of the middle column containing pit is a second connecting hook of which the tail end is fixed in the second embedding pit; the tail end of the middle column is positioned in the middle column containing pit; the first embedding pit, the middle pit containing pit, and the second embedding pit are arranged in order from left to right. According to the firm section material connection structure, the situation that a traditional dual-edge clip hook structure must forms a cavity is omitted, so that the volume of the connection structure is greatly reduced. The connection structure is ingenious in structure, is safe and stable, is quick and convenient to assemble, and can be widely used in connection structures of section material units.

The invention provides a motor rotor structure of an electric vehicle, wherein the motor rotor structure is used in the technical field of motors of electric vehicles. The motor rotor structure comprises a rotor core body (1), wherein the middle part of the rotor core body (1) is provided with a rotor shaft (2), a front pressing plate (3) of the motor rotor structure is adhered to an iron core front end surface (5) of the rotor core body (1), a rear pressing plate (4) is adhered to an iron core rear end surface (11) of the rotor core body (1), a rivet (6) passes through the front pressing plate (3), the rear pressing plate (4) and the rotor core body (1), and each rivet (6) is configured to be a structure capable of fixedly riveting and connecting the front pressing plate (3), the rear pressing plate (4) and the rotor core body (1). The motor rotor structure of the electric vehicle has the advantages of being simple in structure, low in manufacturing cost, capable of reducing axial size of the motor rotor structure by simple improvement on the basis of an original motor, reducing weight of the rotor structure, reducing rotational inertia, and decreasing processing cost.

The invention discloses a rotor of a drive motor of a new energy automobile. The rotor is provided with a rotor iron core, wherein the rotor iron core is provided with a permanent magnet groove extending from the upper end face of the lower end face of the iron core and, the middle part of the rotor iron core is provided with an axial iron core inner round hole and the inner wall of the inner round hole of the rotor iron core is provided with a boss; a rotor shaft fitting with the inner round hole of the rotor iron core and provided with an axial open groove fitting with the boss; an upper end board whose lower end face fits the upper end face of the iron core and is provided with a first guide groove communicating with a permanent magnet groove and also provided with an air inlet and air outlet both communicating with the first guide groove; a lower end board whose upper end face fits the lower end face of the iron core and provided with a second guide groove communicating with the permanent magnet groove. Therefore, rotor structural weight and rotation inertia are reduced; the manufacture cost is reduced; and the integral performance of the drive motor is improved.