153results about How to "Flexible and convenient disassembly" patented technology

The invention relates to a simple rotor mechanism of a coaxial dual-rotor helicopter test stand. The rotor mechanism comprises an inner shaft, an outer shaft, an actuator group, a lower control system, an upper control system, an upper rotor propeller hub and a lower rotor propeller hub, wherein the upper rotor propeller hub comprises a first propeller hub seat, and a first paddle arm arranged on the first propeller hub seat in a full articulation manner; the lower rotor propeller hub comprises a second propeller hub seat and a second paddle arm arranged on the second propeller hub seat in a full articulation manner; the upper control system is connected with the first paddle arm; the lower control system is connected with the second paddle arm; the upper control system is connected with the lower control system via an intermediate draw bar; and the actuator group is connected with the lower control system to control synchronous motion of the first paddle arm and the second paddle arm. The mechanism can achieve collective pitch control and cyclic pitch change of coaxial dual rotors, and effectively achieves various dynamic tests of the helicopter such as upper and lower rotor aerodynamic characteristics of the coaxial dual rotors, dynamic stability of the rotors, and moving part loads of the rotors.

The invention discloses a flexible assembling fixture, which comprises a working platform, a positioning flat ruler arranged on the working platform, a height positioning rod and a bearing fixture block, wherein the working platform is provided with a plurality of rows of mounting hole sites transversely and longitudinally; the positioning flat ruler is provided with a bar sliding site hole and a positioning round hole, and the positioning flat ruler is moveably connected with the mounting hole sites through the sliding site hole; the height positioning rod comprises a fixed rod of which the bottom is inserted in the positioning round hole and an adjusting rod movably sleeved in the fixed rod, the fixed rod is provided with a locking mechanism and is locked with the adjusting rod through the locking mechanism, and the other end of the adjusting rod is also provided with a limiting groove; and the bearing fixture block is connected with the adjusting rod and is used for bearing and blocking a pipe workpiece. The flexible fixture has the advantages of reducing the laser cutting quantity, saving the cost, achieving the functions of fast positioning, fast switching and the like, improving the working efficiency, having simple structure and convenient operation, and reducing the workload for manufacturing a sample fixture.

The utility model relates to an electronic case of electrical-mechanical and thermal integration, which comprises a common motherboard, a plurality of angle strips, a plurality of cutting strips, a plurality of electrical connectors, a plurality of spring leaves, a corner pad and a plurality of circuit boards; wherein, the top part of the case is connected with the angle strips; each angle strip is magnetic sealed by the cutting strips; the common motherboard is positioned on the chassis of the case to realize the signal transmission between the circuit boards, and to make the specification to the circuit boards of different system equipments; the bottom of each circuit board is connected with the common motherboard through two electrical connectors; the top of each circuit board is connected with the top corner of the case; both ends of the circuit boards are positioned in the slots of the former board and the rear board of the case, and is fixed by the slots on both sides of the spring leaves and the corner pad to decrease vibration. The signal transmission of each circuit board in the case is operated by the common motherboard to reduce the number and the configuration weight of cables and the electric connectors which can save the space in satellites for the installation, and damping vibration within the combination of the spring leaves and the corner pad which is positioned on both sides of the slot in the circuit boards, and the purpose of vibration damping is good.

An in-line plating apparatus for float glass is composed of baseplates, multiple air inlet chambers and air outlet chambers arranged alternatively at intervals, cooling cavity above each baseplate, graphite block under each baseplate, air inlet and outlet channels between two graphite blocks, admission distributor, and air outlet collector. It can improve the quality of plated film.

The invention discloses a constant-pressure water jet cavitation test device which comprises a water return tank, a constant-pressure variable-frequency water supply device, a pressure tank, a base, a bottom plate, a jet chamber, a nozzle fixing pipe, a jet nozzle, a silicone mat sealing ring, a transparent organic glass plate, a pressing top plate, a sample, a sample fixing pipe and a drainage flange, wherein the transparent organic glass plate is arranged at the upper end face of the jet chamber; the pressing top plate is arranged on the transparent organic glass plate; the bottom plate is arranged at the lower end face of the jet chamber; the bottom plate is arranged on the base; the nozzle fixing pipe and the sample fixing pipe are both arranged on the pipe wall of the jet chamber; the jet nozzle is arranged on the nozzle fixing pipe; the sample is arranged on the sample fixing pipe; the sample oppositely and directly corresponds to the position of the jet nozzle, and the jet nozzle is communicated with the constant-pressure variable-frequency water supply device and a diaphragm pressure cavity. The jet test device disclosed by the invention is compact and reasonable in structure and strong in generality, can be used to flexibly and simply dismantle the sample, and can carry out different cavitation degree tests on a plurality of groups of sample materials by adjusting the jet speed and jet distance.

The utility model discloses a fence and installation method thereof. The fence comprises a fence post, a platen, a top cover, a crank arm, a mesh, rails, a rail-linking member, bolts and a bolt 2. The fence has the advantages of being high in safety and protection, being accessible to a plurality of occasions, being easy in installation, being convenient and flexible to assemble and disassemble, being high in recycling utilization rate and being capable of lowering manufacture cost.

The invention discloses a motorcycle frame, which comprises a front body assembly, a middle body assembly, a rear body assembly and an engine suspension assembly which are connected by bolts. The motorcycle frame is conveniently and flexibly disassembled, reduces the occupation space of the frame before assembling the motorcycle and package and transportation costs, improves utilization rate of astoreroom, has good universality and interchangeability and only needs to exchange the part if the welding position and size of parts in the part are not accurate or the parts are partially damaged. The motorcycle frame also facilitates the assembly of an engine, thereby greatly reducing the disassembly difficulty of the engine and the labor intensity of workers and effectively improving the assembly efficiency.

The invention discloses a portable universal radar signal simulator, which comprises a signal production unit and an antenna unit, wherein the signal production unit comprises a display control unit, a channel control unit, a frequency source and a radio frequency channel; the antenna unit comprises a power amplifier and a radiation antenna; the display control unit which is used for controlling the operation of the simulator is connected with the channel control unit; the channel control unit is connected with the frequency source and the radio frequency channel and is used for processing a radio frequency signal generated by the frequency source; the input end of the radio frequency channel is connected with the frequency source by the channel control unit; the output end of the radio frequency channel is connected with the power amplifier of the antenna unit; the power amplifier is connected with the radiation antenna. The invention has the advantages of convenience, online programming, multifunction and modularization.

The invention discloses a tunneling and drilling all-in-one machine, which comprises a development machine (1) and a drilling machine (2), which comprises a drilling machine part (22) and an installation rack (21), wherein the drilling machine (2) is connected on a cutting arm of the development machine (1) through the installation rack (21). The drilling all-in-one machine also comprises a hydraulically driven traversing mechanism (23), wherein the drilling machine part (22) is rotatably coupled on a horizontal plane with the installation rack (21) through the traversing mechanism (23). In drilling operations, the drilling machine part can rotate left and right relative to the installation rack to adjust boring angle and height, so as to realize good boring effects; In a tunneling operation, the drilling machine part turns backwards and recedes back to save space over the cutting arm of the development machine. Accordingly, the drilling machine part of the tunneling and drilling all-in-one machine can move flexibly and conveniently, and has a reasonable layout and small space occupation, so that installation and dismounting process of the drilling machine is convenient.

The invention discloses a mining engineering teaching model and belongs to the fields of mining engineering teaching and training. The mining engineering teaching model is characterized in that an original overall mining engineering model is reasonably detached and assembled according to the engineering characteristics of mining engineering and model assembly characteristics, engineering blocks are detached into basic engineering blocks and auxiliary blocks, each basic engineering block refers to different mining engineering, and the auxiliary blocks comprise connecting blocks, supporting blocks and ventilation facility blocks. The basic engineering blocks are connected into complex engineering through the connecting blocks, a three-dimensional space model is formed through the supporting blocks, and a whole mine ventilation system is formed through the ventilation facility blocks. The mining engineering teaching model is matched with mining engineering classroom teaching and model class teaching, the spatial form of mining engineering is conveniently combined with two-dimensional engineering graphics, and the teaching effect is improved; and meanwhile, students can deepen the understanding of the mining engineering space concept by using the mining engineering teaching model after class, and the graphics interpreting ability and space imagination ability of the two-dimensional engineering graphics are improved.

The invention relates to a compound geomechanics model test platform which is formed by steel platform body connected with bottom disk by high strength friction grip bolt. The box type platform is formed by box type steel casting connected with the angle unit at corner by the high strength friction grip bolt. The box type steel casting is formed by a unit box casting and a multi-units box casting, wherein the unit box casting is a square box with hollow structure and front port; the four sides of the unit box casting arranges the high strength friction grip bolt connecting hole and the front side arranges line drilling breather; the multi-units box casting is formed by at least two or a plurality of multi-units box castings; the angle unit is hollow with ports on the adjacent two sides and the friction grip bolt connecting hole on other sides; the bottom disk is formed by parallel connecting the section steel plates with bolt groove.

The invention belongs to the technical field of intelligent furniture, and particularly relates to a multi-functional intelligent swivel chair. The multi-functional intelligent swivel chair comprisesa bottom base, a main body plate installed on the bottom base, and a backrest installed on the main body plate; and further comprises an installing groove installed on the main body plate, a handrailconnected into the installing groove in an inserting mode, a fixing unit installed in the installing groove and used for locking and fixing on the side face of the handrail through a magnetic force repulsion and ejection mode, and a rolling unit installed on the bottom base. The multi-functional intelligent swivel chair is capable of, through a mode of installing the installing groove, the fixingunit and the rolling unit on the main body plate, achieving an objective of effectively installing the handrail and a rolling structure. The multi-functional intelligent swivel chair has the advantages of intelligent and effective handrail installing structure and rolling structure, convenient and flexible assembly and disassembly, and great installing strength.

The invention discloses a tunneling and drilling integrated machine which comprises a tunneling machine (1) and two drilling machines (2), wherein each drilling machine (2) comprises a drilling machine part (22) and a mounting frame (21); the two drilling machines (2) are respectively connected on two track frames (11) on two sides of the tunneling machine (1) through the mounting frames (21); and in each drilling machine (2), the drilling machine part (22) is rotatably connected with the mounting frame (21) in a horizontal plane and the drilling machine part (22) can rotate around the front end of the mounting frame (21) in a vertical plane of the length direction is located. Therefore, the drilling machine parts can rotate up and down and swing left and right relative to the mounting frames; the angle and the height of drilling can be adjusted through the relative motion of the drilling machine parts and the mounting frames during the drilling operation, the drilling machines are mounted on the track frames of the tunneling machine and the drilling operation of the drilling machines can be realized without the help of a cutting arm of the tunneling machine; and the drilling machine parts can be rotated and retracted backwards during the tunneling operation and the occupied space can be further reduced.

The invention discloses a tightening positioning bolt, which comprises two steel wire positioning bolts (1) with internal thread, at least two double-end studs (4) with tightening nuts (2) at both ends and at least an internal thread positioning bolt (2). Both ends of the internal thread positioning bolt (3) are provided with internal threads, and the internal threads of the internal thread positioning bolt (3) are respectively screwed with the external threads of two double-end studs (4) at each end; the external threads of the end, away from the internal thread positioning bolt (3) of the double-end stud (4) are respectively screwed with the internal threads of two steal wire positioning bolts (1); the external end plant of the steel wire positioning bolts (1) are provided with through holes (5) for passing the steel wires, and the internal ends of the through holes of the steel wire positioning bolts (1) are provided with an internal cavity (6) for containing a steel wire heading with a diameter larger than that of the through holes (5). The tightening positioning bolt of the invention has the advantages of large bolt adjusting amplitude, good fastening effect, and flexible and convenient assembly and disassembly.

An electrically-started multi-plate automatic thermal reforming apparatus is composed of an automatic thermal reforming system consisting of a steam reforming reaction plate with catalyst carrier and opening and a partial oxidizing-reforming reaction plate, and a fixed heating plate with electric heater and reactive gas inlet or outlet and connected to said system. Its advantages are high temp raising speed, less electric consumption and small size.

The invention relates to a fragrance generating and enriching device, which comprises a reaction structure, a reaction condition regulating structure and a fragrance enriching structure, wherein the reaction structure comprises a reaction kettle body and a kettle cover; the reaction kettle body is provided with an opening at the upper end; the kettle cover is used for sealing the opening formed in the upper end of the reaction kettle body; a stirring element is arranged in the reaction kettle body; the reaction condition regulating structure comprises a gas regulating structure, a pH value regulating structure and a reaction temperature regulating structure; the gas regulation structure is used for regulating the oxygen concentration in the reaction kettle body; the pH value regulating structure is used for regulating the pH value in the reaction kettle body; the reaction temperature regulating structure is used for regulating the reaction temperature in the reaction kettle body; the fragrance enriching structure is used for enriching the fragrance generated by reaction; meanwhile, un-enriched gas returns into the reaction kettle body. The fragrance generating and enriching device has the advantages that the structure is simple; the cost is low; the operation is flexible; the use is convenient and reliable; the popularization is easy.

The invention discloses a portable toilet. The portable toilet comprises a foldable toilet body and a seat cushion, wherein the seat cushion is arranged on the upper edge of the side wall of the toilet body, one part of the seat cushion is fixedly connected with the toilet body, and the other part, which is not fixedly connected with the toilet body, of the seat cushion is a free end. The portable toilet disclosed by the invention has the beneficial effects that since the toilet body and the seat cushion are foldable, the toilet is convenient to carry; since a sanitary bag can be separated from the inner side of the toilet body, the sanitary bag is only required to be changed after use and the toilet is convenient and sanitary; since the toilet body and the seat cushion can be cyclically used, the toilet is economical; moreover, since the free end of the seat cushion of the portable toilet is provided with a clamping groove which is matched with a groove arranged at the upper end of the toilet body, the seat cushion can be flexibly and conveniently fixed with and detached from the toilet body and the sanitary bag, and the effect is better; the entire structural design is simple, the manufacturing is facilitated, the cost is low and the market demands are met.

The invention discloses a construction method of a building site barrier. The method comprises the following steps that first, according to a barrier construction plane arrangement diagram, the barrier is subjected to measuring and locating; second, stand column foundations are constructed first, a short wall foundation is constructed between two adjacent stand foundations, a short wall is constructed on the short wall foundation, finally, stand columns are constructed on the stand column foundations, and an upper inserting opening and a lower inserting opening are formed in the two sides of each stand column respectively; and third, an upper barrier structure is mounted, wherein (1) lower horizontal beams are inserted to the bottoms of the stand columns, and clamping grooves with upward openings are formed in the lower horizontal beams; (2) barrier plates are inserted into the clamping grooves in the lower horizontal beams; (3) upper horizontal beams are inserted to the tops of the stand columns, and clamping grooves with downward openings are formed in the upper horizontal beams; and the clamping grooves of the upper horizontal beams are clamped to the tops of the barrier plates. According to the method, construction speed is high, construction cost is low, mounting and detaching are flexible, construction materials can be recycled, and the rigidity and the strength of a construction structure are high.

The invention disclose an LED display screen comprising at least two installation bars, at least one power circuit, at least one signal circuit and a plurality of LED luminous units. The minimum distance among the installation bars is 5cm; correspondingly to the each LED luminous unit, the each installation bar is provided with at least one installation position for correspondingly installing andfixing the each LED luminous unit; the minimum distance among the each installation position is 5 cm; and any one of the LED luminous units comprises at least one of LED light-emitting diodes with atleast one color, and the each LED light-emitting diode with the same color is the LED light-emitting diode of the same sorting file and the adjoining sorting files thereof. The LED display screen hashigh transparency, good heat dissipation effect and strong wind resistance, and convenient and flexible assembling and disassembling.

The invention provides a novel traction bottom roller. The bottom roller comprises a smooth shaft base body and groove sleeves, wherein the smooth shaft base body is made from 45# steel; each groove sleeve is made from a nonmetal material; each groove sleeve and the smooth shaft base body are connected in an adhesion way through the adoption of a hot melting adhesive; and after the wearing, each groove sleeve can be detached for replacement. The invention discloses the novel traction bottom roller; the traction bottom roller is unique in structure design and stable in performance; groove structures on the smooth shaft base body are replaced by the groove sleeves; a smooth shaft is unnecessarily machined, so that the production efficiency of the traction bottom roller is improved; meanwhile, the groove sleeves are flexible and convenient to install and detach; moreover, various sleeve materials can be selected for the sleeves for adaptation to various production demands; and in such a way, the traction bottom roller is enabled to be more practical.

The invention provides a part for fixing a horizontal evaporator of refrigeration equipment, which comprises a body, an extension part and an elastic blocking part, wherein the front end of the body is provided with a mounting part suitable for jointing a part of the horizontal evaporator; the extension part is longitudinally and backwards extended out of the rear end of the body; and the elastic blocking part can be arranged at the rear end of the extension part in an elastic deformation way. The fixing part of the embodiment of the invention has the characteristics of simple mould, no need of a mould core and a sliding block structure, stable structure and low cost.