731results about How to "Large internal space" patented technology

A tool set for preparing a joint, inserting an implant or removing an implant from a joint in an open or less invasive procedure generally comprises a set of nested tools, pin guides, jigs, and / or immobilization elements. The nested tool set comprises at least one pin and at least one cannulated tool. In some embodiments, the cannula can comprise tangs that project from the distal end of the cannula. The tangs can be offset such that drilling would remove different amounts of bone relative to drilling through a centered drill guide. The cannulated tool kit generally can comprise at least one tool guide / cannula, drill bits / reamer, syringe, and / or inserter. With the pin positioned into the joint, at least one cannula is positioned over and around the pin. The channel of the cannula guides the other tools into the joint. A plurality of cannulae in a nested arrangement can be used to afford selectively sized channels for tools and / or implants based on selected cannulae configuration. Jigs can be used to facilitate the procedure. Multiple implants can be placed to immobilize the joint.

A height-adjustable implant for insertion between vertebrae, includes first and second sleeve parts which are rotationally fixed in coaxial alignment and interconnected in an axially displaceable manner. The first sleeve part has an internal thread. A nut is positioned coaxially in an inner space surrounded by the sleeve parts and is fixed to the second sleeve part so that it can rotate but is axially fixed. The nut has an external thread which engages in the internal thread of the first sleeve part. A toothed ring extends coaxially with the central longitudinal axis of the sleeve parts and is located on the nut. The second sleeve part has a radial access opening in the vicinity of the toothed ring.

A tool set for preparing a joint, inserting an implant or removing an implant from a joint in an open or less invasive procedure generally comprises a set of nested tools, pin guides, jigs, and / or immobilization elements. The nested tool set comprises at least one pin and at least one cannulated tool. The cannula can comprise tangs that project from the distal end of the cannula. The tangs can be offset such that drilling removes different amounts of bone relative to drilling through a centered drill guide. The cannulated tool kit can comprise at least one tool guide / cannula, drill bits / reamer, syringe, and / or inserter. At least one cannula is positioned over and around the pin position into the joint. The channel of the cannula guides the other tools into the joint.

The invention relates to environment simulation laboratory equipment, especially to a multifunctional environment simulation cabin comprising a cabin body, a PLC control system installed at the outer wall of the cabin body, an air circulation and purification sub system for air circulation and purification inside the cabin body, a new air conveying sub system for inputting new air into the cabin body, a target gas concentration control sub system, and a pressure-control exhaust system. The PLC control system is connected with and controls a plurality of function sub systems by signals, thereby realizing simulation of the environment with different temperatures and humidity and target gas concentrations inside the cabin. According to the invention, an external circulating air hose is provided with different purification device interfaces to installed tested purification devices, so that dynamic testing of tested purifiers on the circulating air hose as well as testing of static environments with different monitoring gas concentrations can be simulated. Testing demands of various purifying devices like an adsorption type purifying device, a photocatalysis type purifying device, or a plasma-technology-based purifying device can be satisfied.

The invention discloses a vacuum thermal insulation component, which comprises a thermal insulation core plate, a first support plate, a second support plate, and a blocking film bag, wherein the first support plate is arranged on the upper surface of the thermal insulation core body, the second support plate is arranged on the lower surface of the thermal insulation core body, the first and the second support plates are used for supporting the thermal insulation core body, and a cavity is formed between the first and the second support plate; and the thermal insulation core body and the first and the second support plates are hermetically arranged in the blocking film bag, and the interior of the blocking film bag is vacuum. The vacuum thermal insulation component provided by the invention has excellent thermal insulation performance.

Vehicle body floor structure (11) includes: a floor panel (44); a floor cross member (38) provided on the floor panel and joined to left and side sills (34, 37); and left and right front floor frames (24) provided on the floor panel and extending from a dashboard cross member to a substantial middle region of the floor panel through a recessed portion (93) of the floor cross member. The left and right front floor frames each have a rear section (48) located rearwardly of the floor cross member, and these rear sections are bent outwardly to be joined to the left and right side sills, respectively. Each of the front floor frames (24) may be provided on the upper surface of a downwardly concaved floor section (67) of the floor panel and extend between the concaved floor section and the floor cross member.

The invention discloses a magnetic suspension bilateral magnetic resistance driving type direct linear transmission device, which mainly comprises a linear bilateral long base, a bilateral long stator linear magnetic resistance motor, a movement bearing table, a stator base fixed connecting rod, a rotor inter-phase connecting rod, a linear movement displacement sensing ruler, an auxiliary support guide rail pair, a suspended air gap detection sensor, a radiating fan and the like. A magnetic suspension support magnetized loop is multiplexed with a linear magnetic resistance motor stator and rotor magnetized loop, a base is not needed to be used for magnetizing, a moving component is not provided with a permanent magnet and does not need an external power supply, and the transmission device has the advantages of simple and compact structure, low manufacturing cost, high power-to-volume ratio, high electromagnetic thrust, short magnetic circuit path, high inter-phase sealing property, high fault-tolerant capability, zero friction operation and the like.

A tool set for preparing a joint, inserting an implant or removing an implant from a joint in an open or less invasive procedure generally comprises a set of nested tools, pin guides, jigs, and / or immobilization elements. The nested tool set comprises at least one pin and at least one cannulated tool. In some embodiments, the cannula can comprise tangs that project from the distal end of the cannula. The tangs can be offset such that drilling would remove different amounts of bone relative to drilling through a centered drill guide. The cannulated tool kit generally can comprise at least one tool guide / cannula, drill bits / reamer, syringe, and / or inserter. With the pin positioned into the joint, at least one cannula is positioned over and around the pin. The channel of the cannula guides the other tools into the joint. A plurality of cannulae in a nested arrangement can be used to afford selectively sized channels for tools and / or implants based on selected cannulae configuration. Jigs can be used to facilitate the procedure. Multiple implants can be placed to immobilize the joint.

The invention discloses a load box for testing an open caisson with a self-balancing method, which comprises a load box body, hydraulic oil cylinders, hydraulic oil pipes and a hydraulic loading device. The hydraulic oil pipes and the hydraulic loading device are connected with the hydraulic oil cylinders sequentially; the load box body comprises an upper annular steel plate, a lower annular steel plate, an outer annular baffle board and an inner annular baffle board, wherein the upper annular steel plate and the lower annular steel plate are vertically opposite, the inner annular baffle board and the outer annular baffle board are arranged on the inner sides and the peripheries of the upper annular steel plate and the lower annular steel plate respectively, and the inner annular baffle board and the outer annular baffle board form a closed box body with the upper annular steel plate and the lower annular steel plate. When the hydraulic oil cylinder is preloaded, the upper annular steel plate and the lower annular steel plate can vertically move respectively; the hydraulic oil cylinders are arranged in the load box, the bottoms of the hydraulic oil cylinders are fixedly connected to the upper annular steel plate, pistons of the hydraulic oil cylinders are contacted with the upper annular steel plate; and the load box for testing the open caisson with the self-balancing method further comprises displacement transferring devices for testing displacement of the upper annular steel plate and the lower annular steel plate. The load box is reliable, practical and economical.

The invention relates to a foldable container house capable of being conveniently moved and transported. The foldable container house comprises a container house, wherein the container house is a standard 20-foot container high cabinet for transportation, communicated insertion openings are formed in two box bottom long edge steel components, the other side of a container house long edge is connected with a long edge reversible platform through a connecting hinge, one side of a container house short edge is connected with a short edge upward and downward reversible platform through a connecting hinge, an outward moving box body is arranged in a position, positioned at one side of a rigid side plate, of the container house, a moving box body and a peripheral side plate are arranged in a position positioned at one side of the long edge reversible platform, an inward opening inner reverse door is arranged on the peripheral side plate, and a double-leaf door is arranged in a position positioned at one side of the short edge upward and downward reversible platform. The foldable container house belongs to a container house which conforms to the standard transportation requirements and can expand the internal space. The foldable container house can be singly used as a residence and can also be combined and assembled with a plurality of container unit bodies to form a multi-story and yard living space.

The invention discloses a structure and a manufacturing process of a low-cost carbon fiber composite material sky railway train body, and belongs to the technical field of application of composite materials on rail vehicles. The structure comprises a train body side wall, wherein end walls are assembled and connected to the both ends of the train body side wall; a top frame and a bottom frame arecorrespondingly assembled and connected to the inner top surface and the inner bottom surface of the train body side wall, a ceiling is assembled and connected to the outer top surface of the train body side wall, and a bogie mounting hole is formed in the ceiling; the train body side wall and the end walls both comprise reinforced rib frames, inner skins and outer skins, and grids of the reinforcing rib frames are filled with sandwich foam blocks; the ceiling comprises a sandwich panel, an upper skin and a lower skin, and the top frame, the bottom frame, the reinforcing rib frame, the inner skins, the outer skins, the upper skin and the lower skin are all integrally molded from carbon fiber composite materials; and the inner portions of the reinforcing rib frames are filled with sandwichfoam, and the purpose of satisfying the function and structure of the load bearing mode of a suspension-type train body on the premise of light weight of the train body is achieved.

The invention discloses an earthquake protection bed. The earthquake protection bed comprises a bed bracket, bed boards on the bed bracket, a protective cover, a driving device and a vibration sensor, wherein the protective cover is movably arranged below the bed boards through a guide rail; the driving device is arranged on the bed bracket and comprises two telescopic push rods; the protective cover is driven to ascend and cover the bed boards through the movement of the push rods; the vibration sensor is arranged on the bed bracket; when vibration reaches a preset level, the driving device is started to drive the push rods to move; and the push rods are vertically arranged on two corresponding sides of the bed bracket respectively, are connected with the bed boards through connecting members and are moved to drive the bed boards to descend. When an earthquake occurs, the protective cover can be automatically ascended to the upper part of the bed, so that the protection capacity is enhanced; meanwhile, the bed boards are slowly descended to expand the internal space of the protection bed, so that a trapped person can move inside the bed conveniently and the injury of the person in a disaster can be reduced to the minimum.

The automatic hydraulic premade box beam inner formwork system has the inner mold hinging with a pair of up corner mold and a lower corner mold, oil tank slanting upward connected between the top mold and the up corner mold, oil tank slanting downward connected between the top corner mold and the lower corner mold, bracket barricaded along the box beam at the center of the cavity bottom surrounded by inner molds supporting up steel track that has translation cart along it with the cart composed of walking wheel, frame, supporting base beam fastened on the frame, frame of the cart extending outside of the inner mold plate with hydraulic pump station and operation platform. It is simple, steel consumption effective, low in cost, improving inner space 25% than the traditional one.

The invention provides an adjustment device and a main frame of a headset. The adjustment device comprises a frame, an adjustment belt and an adjustment mechanism. The frame is a semi-curved structure which matches the head of a person in shape. The adjustment belt is in matched connection with the frame, and the first end is an adjustment end. The adjustment mechanism is movably connected with the adjustment end of the adjustment belt, and adjusts the adjustment end to adjust the length of the adjustment belt. The main frame comprises a front casing body and a rear casing body, wherein the front casing body and the rear casing body are arc-shaped and match the head of a person in shape. The rear casing body comprises an arc-shaped side wall and a top wall. The front casing body comprises an arc-shaped side wall and a top wall. The front casing body and the rear casing body are spliced to form an inner hollow structure. A circuit device and a backup power supply of the headset are arranged in left and right sides of the inner hollow structure respectively. The front middle space is a routing channel. According to the invention, the overall weight is balanced; the headset can be conveniently adjusted to a comfortable position; and the operation is easy.

The invention provides a flying wing layout aircraft which comprises an aircraft body (1), aircraft wings (2), ailerons, an elevator (5) and double vertical fins (4), wherein the aircraft body (1) and the aircraft wings (2) are integrated; the ailerons (3) are positioned on the outer sections of the aircraft wings (2), and are used for rolling control in level flight; the elevator (5) is positioned at the rearmost part of the aircraft body (1), and is used for pitching control in level flight; and the dual vertical fins (4) are positioned at the rear part of the aircraft body (1), and are used for enhancing the flight direction safety in level flight. The flying wing layout aircraft provided by the invention has the advantages that the aircraft body integration technique inherits the excellent pneumatic property of the flying wings, and larger internal space is provided; the weight distribution is more reasonable, and the structure is lighter, so that the load and the voyage are increased; front air screws which are arranged in an engine and tilt and rear air screws which are fixed and can be accommodated in the vertical fins achieve the capability of vertical / short take-off and landing, and the interference to the whole pneumatic appearance of the aircraft is lowered greatly; and the connection shaft design among engines greatly improves the reliability of a dynamic system, avoids the dangerous situation of invalidity after taking off, and guarantees the flight safety in vertical / short take-off and landing.

The invention provides a nondestructive restoration method for polluted soil, which comprises the following steps: 1, a rotary cultivator is used to crush a soil layer, and when the car advances, the crushed soil is moved into a soil conveying device and fed onto a material stirring and conveying device; 2, adsorbent drop and recovery operations can be performed, wherein when the adsorbent drop operation is performed, magnetic adsorbent is dropped into an adsorbent drop hopper, and at this time, a magnetic separation device is not started; 3, the magnetic adsorbent and the soil are mixed, then fall into the material stirring and conveying device, and are conveyed to the tail part of the car while being stirred and mixed; and 4, recovery operation is performed, the magnetic separation device is started, and the magnetic adsorbent is sucked on a magnetic roll body and discharged into an adsorbent recovery hopper after the magnetic roll body is rotated to a high position. According to the invention, through two operation processes of adsorbent drop and adsorbent recovery, the harmless separation between pollutants such as heavy metal, pesticide and the like in the soil and the soil can be realized.

In the structure of the cable, there are multiple insulated cores, distance sleeve, mineral matter laminate layer, expansion sleeve and sheath. The mineral matter laminate layer possesses feature of flame resistance. When a fire takes place, the mineral matter laminate layer begins to expand caused by heat and forming a stable thermal insulation layer. The expansion sleeve is also expanded, making the thermal insulation layer stable and integrity so as to prevent quantity of heat from incursion. Thus, temp in insulated core is lower than temp in outer flame obviously. Under 750 deg.C flame, the invented cable works normally for 90 minutes at rated voltage (GBl2666.6 standard) or 180 minutes (IEC331 standard).

The invention discloses a multifunctional automatic elastic compartment automobile which comprises an automobile body, an automobile frame and a compartment which is elastic, wherein the elastic compartment comprises an elastic compartment framework connected to the automobile frame, an elastic bottom frame connected to the bottom of the elastic compartment framework, an elastic top cover connected to the top of the elastic compartment framework, a compartment wall connected to the periphery of the elastic compartment framework as well as an elastic mechanism which is connected to the elastic compartment framework, the elastic bottom frame and the elastic top cover; the elastic bottom frame is internally provided with a bottom surface clearance closed device; the elastic top cover is internally provided with a top cover clearance closed device; the compartment wall is provided with a compartment door; an elastic power drive system and a covering mechanism component are placed in the elastic compartment; and the elastic mechanism and the elastic power drive system are connected. The multifunctional automatic elastic compartment automobile provided by the invention is compact in structure, is novel and reasonable in design, has good driving stability, has a large internal space after the compartment unfolds, and has rapid elastic speed of the compartment, high accuracy, high practicability, and high popularization and application value.

The invention discloses multi-arm star polyester / hyperbranched polyglycidyl ether which comprises biodegradable polyester and polyglycidyl ether, the composed molecular shape takes the shape of a star which comprises a core, a support arm and a hyperbranched part, wherein the core is a residual part after compounds containing at least three hydroxyls are reacted, the support arm is biodegradable polyester, the hyperbranched part is polyglycidyl ether and has a structural general formula as below, wherein R is hyperbranched polyglycidyl ether. The invention also discloses a preparation method of the multi-arm star polyester / hyperbranched polyglycidyl ether. The multi-arm star polyester / hyperbranched polyglycidyl ether not only has biodegradability, but also can satisfy the requirements of control release of different drugs, medical product materials and tissue engineering as the structure simultaneously contains a hydrophobic part and the hydrophilic hyperbranched part, especially a great deal of terminal hydroxyls reserved in the structure can also be bonded with other drugs and various ligands to form a multifunctional medicine carrier.

The invention discloses a foldable and expandable multifunctional double-layer touring car. The foldable and expandable multifunctional double-layer touring car comprises a car head, a compartment and a platform, wherein the compartment is dragged by the car head and comprises an upper-layer compartment, a lower-layer compartment and left and right double-layer heat preservation side compartments; the left and right double-layer heat preservation side compartments adopt square pipes as a framework and are provided with heat preservation plates; the upper-layer compartment is arranged at the upper part of the lower-layer compartment in a double-layer heat preservation mode of adopting the folding square pipes as the framework and additionally adding the heat preservation plates and sunscreen rain cloth, the right side compartment is embedded in the lower-layer compartment in a push-pull mode, and first lateral extension space of the lower-layer compartment is formed when the right side compartment is pulled out; the platform is arranged at the bottom part of the lower-layer compartment in a folding way, and second lateral extension space of the lower-layer left compartment is formed after the platform is unfolded. According to the foldable and expandable multifunctional double-layer touring car disclosed by the invention, folding or expanding is convenient, the utilization area is enlarged, the foldable and expandable multifunctional double-layer touring car is used for product exhibition and professional stage performance, a total-closed touring car is formed by closing a stage front wall when not in performance, and multiple functions of accommodation, entertainment, a dining hall, a coffee house, a karaoke lounge and the like are realized.

The invention provides an experiment cabin system capable of adjusting atmospheric environmental pressure. The system is characterized by comprising an experiment cabin arranged in a constant-temperature constant-humidity environmental chamber and a positive and negative pressure generation unit, a ventilation adjusting unit, an air purification unit, a meteorological sensor and a system control unit controllable both in and out of the cabin, which are arranged to be communicated with the cabin. Compared to the prior art, the invention has the following advantages: 1, the system can realize control of the environment condition of atmospheric pressure in research and experiments on tobacco and is applicable to control of atmospheric pressure in most regions where people live; 2, the inner space of the system is great, which enables a plurality of staff to simultaneously carry out experiments; 3, the comprehensive air purification unit is provided in the cabin, which enables collection and purification of harmful gas generated after combustion of tobacco to be realized; 4, the system is simple to operate and enables single-key operation and comprehensive information prompting to be realized in normal usage; and 5, security design and humanized design of the system are considerate, an automatic safety device is arranged in the cabin, and hand-operated safety devices are arranged in and out of the cabin.

The invention discloses a cylindrical barrel of grinding machine, in which the shaft of the grinding machine can be set to stirring. One end of the barrel is set a discharge hole, and off a certain distance from the hole there is a rotating speed transmission span, where the distance from the point on the inwall lateral section to the center of the rotating axis are different, which makes the powder rotating in the lateral section in variably velocity. Also, the invention relates to a stirring grinder, including a grinding barrel, a actuating mechanism and a rotating chief axis, wherein the barrel has the said structure, and the rotating chief axis is set inside the barrel along the barrel axis, the actuating mechanism drives the rotating chief axis to rotate. The polygonal structure off the discharge hole of the invention makes the shearing, compression, collision in the different sections of the same barrel, which homologous to the grinding process with several device and circulation: shearing, compression, again shearing, again compression.

The invention discloses a flexible self-supporting composite electrode which is a composite material composed of a carbon-based current collector, cobalt phosphide growing on the current collector insitu and nitrogen-doped carbon. The cobalt phosphide / nitrogen-doped carbon grows on the carbon-based current collector in situ in the form of a nanosheet array. The invention further discloses a preparation method of the flexible self-supporting composite electrode. The method comprises the following steps of mixing a cobalt nitrate solution and a 2-methylimidazole solution in an isopyknic mannerto obtain a solution, placing the carbon-based current collector in the solution, standing for 1-4 hours, washing with the deionized water, drying to obtain the carbon-based current collector with a precursor grown in situ, and calcining in an H2 / Ar atmosphere to obtain a carbon-based current collector sample with metal cobalt / nitrogen-doped carbon grown; and in the inert atmosphere, phosphatizingthe carbon-based current collector sample on which the metal cobalt / nitrogen-doped carbon grows and NaH2PO2. The electrode disclosed by the invention is used as the positive electrode material of thelithium-selenium sulfide battery, shows the excellent electrochemical performance and has a wide application prospect.

The invention relates to a lifting interbody fusion device and an operation device for driving the same. The lifting interbody fusion device comprises a screw, a middle limiting frame, an upper lifting block and a lower lifting block. The upper lifting block is arranged on the outer side of the upper portion of the middle limiting frame in a sleeving mode, the lower lifting block is arranged on the outer side of the lower portion of the middle limiting frame in a sleeving mode, at least two first inclined grooves and at least two second inclined grooves are formed in each of the two side walls of the middle limiting frame, the inclination directions of the first inclined grooves and the second inclined grooves are opposite, first bolts in sliding fit with the first inclined grooves are arranged on the slide walls of the upper lifting block, second bolts in sliding fit with the second inclined grooves are arranged on the slide walls of the lower lifting block, and the screw is connected with the middle limiting frame through threads and limited on the upper lifting block or the lower lifting block. The interbody fusion device is adjustable in height and stable in use; besides, the inner space of the interbody fusion device is large, the bone grafting space in an operation is large, the bone grafting quantity is large, and the healing success rate is high.

The invention discloses a seed melon crushing seed-taking machine, wherein a feed hopper, a motor, a crushing device, a skin and pulp separation device, a spiral crushing delivery device and a seed and pulp separation device are arranged on a rack of the seed-taking machine; the motor drives the crushing device, the skin and pulp separation device, the spiral crushing delivery device and the seed and pulp separation device; the feed hopper is arranged above an inlet of the crushing device, and an outlet of the crushing device is communicated with an inlet of the skin and pulp separation device; the bottom end of the skin and pulp separation device adopts a screen structure and communicated with the spiral crushing delivery device; an outlet of the spiral crushing delivery device is communicated with the seed and pulp separation device. According to the invention, the effective and sanitary separation of the seed melon skin, pulp and seeds is realized, and the indicators of all separated items meet various indicator requirements for the follow-up processing. The novel seed melon crushing seed-taking machine disclosed by the invention has the following characteristics: the machine is designed according to the production line for full utilization of seed melons, the structure is novel, simple and practical, the entire crushing and separation process is completed through automation, the processing efficiency is high, and the productivity reaches 10 tons per hour.

The invention discloses a metamorphic type multifunctional mechanical gripper. A push rod is connected with a wrist through a movement pair. A first rod penetrates through a sliding groove, is connected with the push rod through a first fixed hinge, is connected with a second rod through a first movable hinge and is connected with a third rod through a second movable hinge. The second rod is connected with a fourth rod through a third movable hinge. The third rod is connected with the wrist through a second fixed hinge, is connected with a fifth rod through a fourth movable hinge and is connected with the fourth rod through a fifth movable hinge. The fourth rod is connected with a sixth rod through a sixth movable hinge. The fifth rod is connected with the sixth rod through a seventh movable hinge. The wrist is connected with an arm into a whole when installed on a manipulator or the arm of a robot, and four same fingers can be opened or closed at the same time through reciprocating linear movement of the push rod inside the wrist. The metamorphic type multifunctional mechanical gripper is made of light and high-strength materials, thereby being light and convenient and capable of achieving multidirectional and efficient working.

The invention discloses a structure of a vertical take-off and landing rotor aircraft, which comprises a flying wing aircraft body and wings connected with the flying wing aircraft body, wherein the rear part of the flying wing aircraft body is provided with a vertical stabilizer, a horizontal stabilizer and wing flaps; a pair of wings is arranged on each side of the flying wing aircraft body which is flat and long; the middle parts of the wings are connected with the flying wing aircraft body through tilting gears; rotor systems are arranged on the two ends of wings; and rudders are arrangedon the two ends of the wings and below the rotor systems. In the structure of the aircraft, the flying wing aircraft body is combined with the rotor systems, a reasonable design enables the aircraft to take off and land vertically and reaches the flight speed and range of a fixed wing aircraft. The structure is relatively simple.

The invention discloses a button cell, which comprises a shell body, a pole, a sealing piece and a battery cell, wherein a through hole is formed in the shell body; the pole is arranged in the throughhole in a penetrating manner, the pole and the shell body are in sealed connection through an insulating piece, a liquid injection hole is formed in the shell body or the pole, and the liquid injection hole is communicated with the interior of the shell body; the sealing piece is used for sealing the liquid injection hole; and the battery cell is arranged in the shell body, a first tab and a second tab with opposite polarities are respectively arranged at two ends of the battery cell, the first tab is electrically connected with the shell body, and the second tab is electrically connected with the pole. The button cell is simple in structure, the shell body is small in occupied space and large in internal space, the energy density of a battery is effectively improved, and the production requirement is met.

The invention relates to a down feather and wool mixing expanding sleeping bag, a manufacturing method and a using method. A whole sleeping body is composed of an upper sleeping body piece, a lower sleeping body piece, a nightcap, a bottom barrel, a sleeping body triangular piece, a lifting lug, a closure, a sleeping bag expanding piece and a closure zipper. The sleeping body is composed of the upper sleeping body piece, the lower sleeping body piece, the closure, the nightcap and the bottom barrel, the nightcap is fixedly arranged at the top end of the sleeping body, the bottom barrel is fixedly arranged at the bottom of the sleeping body, the upper sleeping body piece is fixedly arranged at the upper portion of the sleeping body, the lower sleeping body piece is fixedly arranged at the lower portion of the sleeping body, the sleeping bag expanding piece on the closure is installed on the sleeping body through the closure zipper and the sleeping body triangular piece, and an integrated structure is formed through the closure zipper and an expanding piece zipper. The down feather and wool mixing expanding sleeping bag is reasonable in design, novel in structure, attractive in style, light, practical, convenient to pack and carry, easy to manufacture, low in cost, economical, practical, comfortable in sleeping, good in heat retention property and good in breathability, and can be widely applied to field work, and the down feather and wool mixing expanding sleeping bag can become companions and favorable articles for field workers, travelers and evection persons, and is suitable for travelers, alpinists, field workers, outdoor exploration persons and troop officers and soldiers.

The present invention relates to a lighting control switch, which weakens the lamp output of the lighting load at the late night period and the like prescribed time periods, and illuminates the surrounding more clearly at other time periods. At the front part of the switch body (10) of the lighting control switch (A), it is arranged with a press switch which does opening / closing to the lighting load, a rotating handle (18) of the light modulation time period setting switch which sets the light modulation time period, and a operating handle (20) which is rotating-freely arranged and impels thepress switch at back side according to the rotating operation. The operating handle (20) is arranged with open window (22a) which is used to expose the rotating handle (18), and is installed with an operating handle cover (26) which is opened and closed freely at the closed position where it covers the rotating handle 18 and the open position where it exposes the rotating handle 18. The lighting control switch (A) switches on and cuts off the electricity supply to the lighting load according to the operation of the press switch, when the press switch does open operation at the light modulation time period, it makes the lighting load illuminate with less brightness.