230results about How to "Easy to change and adjust" patented technology

The invention relates to a twisting machine, in particular to a twisting machine used for compound double twisting. The twisting machine comprises a frame, wherein the frame is provided with a driving transmission mechanism, at least one twisting device and a yarn winding device corresponding to the twisting device; the twisting device contains at least two double twisting spindles and one compound twisting spindle, the double twisting spindles are parallel to each other and fixed on the mounting plate of the compound twisting spindle; a first-twist bolster is fixed on the mounting plate, a compound twisting spindle whorl is driven by the driving transmission mechanism, the compound twisting transmission wheel is connected with a a first-twist spindle whorl which rotates in the reverse direction of the compound twisting transmission wheel, through a transmission belt; and parallel grooves are arranged on the external circumference of at least one of the compound twisting transmission wheel and the first-twist spindle whorl. The invention mainly provides the twisting machine used for compound double twisting which has simple structure and can perform four processes to multiple strands of raw material yarn on the same platform simultaneously, namely first-twist and double twisting, combination, compound twisting and double twisting in reverse direction, and winding; the production process flow is greatly shortened, the working time is reduced, the production cost is saved, the yarn quality is remarkably increased; and the technical problems of the prior art that the twisting machine can only perform one process, the structure of the integrated twisting machine is huge and complicated and the degree of twist is inconvenient to adjust, can be solved.

A delay circuit includes an interface for giving a command of setting a delay time and a delay device that can be set to any desired delay time, and the delay time of the delay device is set according to a command from the interface.

A method and apparatus for polishing the mirror surface by use of dual grinding heads is disclosed. Said apparatus features that the polishing abrasive bands and the lathe are used. Said method features dry polishing without any liquid.

The invention relates to a centering device for hoisting a shell of a reactor core of a high-temperature gas cooled reactor. The device comprises a top centering caging device and a bottom centering caging device. The top centering caging device is fixed on a primary flange of a reactor pressure vessel and the bottom centering caging device is fixed on a radial rib plate of the shell of reactor core in a supporting manner. While the shell of the reactor core is hoisted into the reactor pressure vessel, the top centering caging device can ensure that the outer wall of the shell of reactor core and the inner wall of the primary flange of the reactor pressure vessel can be within a minimum safe distance, and a bracket of the shell of reactor core and the inner wall of the reactor pressure vessel can be within a minimum safe distance. The bottom centering caging device adopts a bearing rolling structure, so that sliding friction and impact between the inner wall of the reactor pressure vessel and the shell of reactor core during hoisting can be prevented. All of the centering devices can be removed after finishing the hoisting of the shell of the reactor core. The novel centering device provided by the invention provides the safe and reliable guarantee for the large commercial high-temperature gas cooled reactor hoisting process.

The invention relates to a roller blind structure, in particular to a connection device used for installing a fixing seat for fixing the upper end of a roller blind on a window frame. A roller blind fixing seat and window frame connection device is characterized by comprising a connection body, a connection piece of the fixing seat is arranged on the connection body, an adjustable clamping piece is arranged at one end of the connection body, and the adjusting range of the clamping piece is larger than the width of the window frame. The connection device is simple in structure, the connection body of the fixing seat can be applicable to different window frames, and adjustment, assembly and disassembly can be facilitated. The connection device solves the technical problem in the prior art that a connection body of the fixing seat and the window frame must be matched with the window frame in use, the connection body is inconvenient to assemble and disassemble, and members are large in number.

The invention relates to the technical field of brushes, and discloses a brush that is convenient to adjust and replace. It includes a fixed block. A threaded rod is threaded on both sides of the mounting base, and one end of the threaded rod runs through one side of the mounting base and extends to the inside of the plug. The top of the plug is fixedly connected with a connector, and the top of the connector is fixedly connected with a The brush plate is fixedly connected with bristles on the top of the brush plate, and is fixedly connected with a casing at the bottom of the fixed block. The easy-to-adjust and replaceable brush is conveniently plugged into the card slot inside the mounting seat through the mounting seat on the top of the fixing block to limit the position, and then fixes the inserting block through the threaded rods on both sides of the mounting seat to make it more stable. Prevent shaking during use, clean dirt through the bristles on the brush plate, easy to use, and achieve the purpose of easy replacement by adjusting the threaded rod.

A pillow comprising a bag and a large number of chips in the bag, wherein multiple chips are connected together to form a chip assembly by means of a linear member comprising a thread or a string having a rubber-like elasticity passed through a through-hole provided in the chips, and multiple chip assembly are stuffed in the bag.

The invention provides a high-temperature pure air heater. The high-temperature pure air heater comprises a pressure-resistant shell (1), a grate (2), an air inflow pipe (3), a heat insulating layer (4), a lining barrel (5), an air outflow pipe (6), an upper cover plate (7), a fastening bolt (8), corundum parts (9-1, 9-2 and 9-3), electric heating assemblies (10), heat exchange assemblies (11), apower connector (12) and a support (13). The heat insulating layer (4) is mounted in the pressure-resistant shell (1), the electric heating assemblies (10) and the heat exchange assemblies (11) are combined up and down, and each electric heating assembly (11) is located on the lower portion of the corresponding heat exchange assembly (10). Heat exchange pipes of the heat exchange assemblies (11) are spirally arranged according to an involute and connected in series up and down, and connectors are inserted in a conical disc shape. The air inflow pipe (3) is arranged on the lower portion of thedevice, and the air outflow pipe (6) is arranged on the upper portion of the device. According to the air heater, the flow path of airflow is long, the heat exchange area is large, and the temperatureof the outlet airflow is stable. The heat exchange assemblies are vertically arranged, the internal heat insulating layer bears force uniformly, and the air heater is convenient to manufacture and machine and convenient to mount.

The invention discloses an output shaft support device for an automatic gearbox, and belongs to the technical field of the automatic gearbox. The output shaft support device for the automatic gearbox comprises an anti-thrust bearing and a radial bearing; an adjusting shim is installed between the ring of the anti-thrust bearing and the shell of the gearbox; the inner ring of the radial bearing is sleeved on the shaft shoulder of the output shaft; the outer side of the inner ring of the radial bearing bears against the output gear of the output shaft, and the inner side of the inner ring bears against the shaft ring of the anti-thrust bearing; the inner side of the outer ring of the radial bearing is provided with a flange; a spacer is installed between the flange and the shell of the gearbox; the outer ring of the radial bearing is fixedly installed with the shell of the gearbox; and the outer side of the outer ring of the radial bearing is provided with an opening. The output shaft support device for the automatic gearbox is capable of, through designing the radial bearing as the separated structure, solving the wearing problem of the gearbox shell, and solving the assembling problem of the radial bearing.

The invention discloses a three-level multi-spray-pipe central ejector, which comprises a first-level multi-spray-pipe central ejector (1), a second-level multi-spay-pipe central ejector (2) and a third-level multi-spray-pipe central ejector (3), wherein the first-level multi-spray-pipe central ejector (1), the second-level multi-spray-pipe central ejector (2) and the third-level multi-spray-pipe central ejector (3) are sequentially connected with one another in serial along the flowing direction of main airflow, and an expansion joint (4) is respectively arranged between the first-level multi-spray-pipe central ejector and the second-level multi-spray-pipe central ejector and between the second-level multi-spray-pipe central ejector and the third-level multi-spray-pipe central ejector. The three-level multi-spray-pipe central ejector has the advantages of good pumping effect and convenience in machining and manufacturing.

The invention relates to the temporary earthing field, in particular to a temporary earthing clamp device which is characterized by comprising a member I, a member II and a hinge pin, wherein the member I and the member II are hinged together through the hinge pin; the corresponding meshed end of the member I and the member II is a jaw, and the other ends of the member I and the member II are handles; a locking positioning device is arranged at the end parts of the handles and comprises a locking tooth on the member I and an elastic curved plate on the member II; and the end part of the elastic curved plate slides along the surface of the locking tooth under the action of an external force so as to realize relative position fixing of the member I and the member II. Compared with the prior art, the temporary earthing clamp device has the advantages that 1, the installation procedures of the earthing terminal of the temporary earthing wire are simplified, so as to ensure operation convenience and reliability of the temporary earthing and improve the installation efficiency of the earthing wire in operation in case of power failure of a power line; 2, the connection requirement between ground studs with different cross sections and a tower material is met; and 3, convenience is brought for replacement and adjustment of the temporary earthing clamp.

A fusion welding die set of non-PVC film for making plastic packing bag is composed of an upper die with cooling plate and a lower die, and features that said upper and lower dies have the holes in which the electrically heating rods and the thermoelectric couple are inserted.

The invention provides an LED light source for medical endoscopes and a spectrum design method. The LED light source comprises a blue light source, a cyan light source, a green light source, a yellow light source, a red light source and a current controller. The LED light source is formed from the light sources with the colors. The blue light source consists of a blue light LED chip. The cyan light source, the green light source, the yellow light source and the red light source consist of blue light LED chips, the corresponding cyan fluorescent powder, green fluorescent powder, yellow fluorescent powder and red fluorescent powder, and filter films, wherein the filter films are blue light filer films. The spectrum design method comprises the steps of irradiating human body tissue and organ samples with the LED light source and a reference light source and obtaining a corresponding reflecting spectrum through testing; calculating color differences; adjusting the chips, the peak values of the fluorescent powder, and the currents of the various light sources according to the results to realize different spectrum distributions; performing repeated calculation until the color differences are consistent. The LED light source has the advantages of high light-emitting intensity, full spectrum without deficiency, flexible control and strong color restoration, has no ultraviolet and infrared parts and is biologically-friendly.

The invention relates to a heating element and an electronic cigarette appliance provided with the heating element. The heating element is composed of a main body portion having a tapered upper surface and a tip end portion located at one end of the main body portion. The main body portion is composed of a plurality of, for example, three side surfaces so as to have a polygonal cross-section, forexample, a trigonal shape. The main body portion is provided with a resistance heating portion and a temperature control portion. The heating element and the electronic cigarette appliance of the invention can improve the heating efficiency and the effect of tobacco in the electronic cigarette appliance, and improve the stability, reliability and convenience of the heating element.

The invention discloses a movable combined afforestation guardrail with an irrigation system. The movable combined afforestation guardrail is composed of bases, supports and long planting troughs in a connected mode, wherein each base is made of cast iron, the bottom surfaces of the bases are placed on a hard surface, each base is of a big-end-down structure, the bottom surface of each base is provided with an upward cavity, the bottom surface and the top surface of each base are roughly parallel to each other, and the top surface of each base is provided with a downward concave hole; each support is a hollow steel tube, the lower portion of each support is inserted in the downward concave hole of the corresponding base, the supports are connected to a fence through bolts or welded to the fence or connected to the fence in a mortise and tenon connection mode, and a transverse steel structure and vertical steel tubes are welded to constitute the fence; the two long planting troughs parallel to each other are arranged on two side faces of the fence, the two roughly parallel long planting troughs and the fence are connected into a whole through bolts, the top surfaces of the long planting troughs are provided with openings, the wall surfaces of the long planting troughs are provided with water supply and drain holes, and the openings of the long planting troughs are provided with inward or outward safety skirt edges preventing accidents. By means of the technical scheme, purposes of the movable combined afforestation guardrail are achieved.

The invention discloses a concrete raw material screening device. The concrete raw material screening device comprises a machine body, a first screening mechanism and a second screening mechanism, wherein the first screening mechanism and the second screening mechanism are installed in the machine body, a feeding hopper is installed on one side of the upper end face of the machine body, universalwheels are installed at the four corners of the bottom end face of the machine body, mounting lug bases are fixed to the upper portion and the lower portion of the side wall, close to the feeding hopper, in the machine body respectively, one end of the first screening mechanism and one end of the second screening mechanism are rotationally arranged in the mounting lug bases respectively, and the other ends of the first screening mechanism and the second screening mechanism extend out of the machine body and penetrate through two sets of material guiding outlets formed in one side face of the machine body respectively, wherein the bottom ends of the first screening mechanism and the second screening mechanism abut against a buffering mechanism at the material guiding outlets, and a motor isfurther installed on the side face of the machine body between the two sets of material guiding outlets. According to the concrete raw material screening device, double screening can be achieved, thescreening efficiency is improved, and meanwhile the problem that when concrete falls onto a screen plate, the screen plate is damaged due to too large gravity can be avoided.

The invention relates to a medical nursing device, in particular to a multifunctional nursing displaying board. The multifunctional nursing displaying board is constituted by a displaying board body, a transparent protection board, mobile inserting windows, specific item displaying windows, a nursing level displaying window, a diet level displaying window and the like, the transparent protection board is installed on the outer surface of the displaying board body, and connecting clamping grooves are formed in the back of the displaying board body; the mobile inserting windows are manufactured in the left side of the front of and the upper portion of the middle of the displaying board body, the nursing level displaying window and the diet level displaying window are manufactured in the lower portion of the middle of the displaying board body, and a placing box and the specific item displaying windows are manufactured at the right side of the displaying board body. The multifunctional nursing displaying board is complete in content, multiple pieces of nursing information of a patient can be centralizedly reflected, and it is guaranteed that the problems of placing missing, taking missing and the like when patient information is recorded do not occur; meanwhile, the multifunctional nursing displaying board is simple in structure, and convenient to install and use, and nursing information of the patient is convenient to replace and adjust. The existing problems are solved that an adopted handwritten card is incomplete in information, information of existing mobile multifunctional nursing cards is inconvenient to replace, and the information conversion range is small.

A fastener structure is provided for fastening an elastic object and includes a bore-carrying fastening member and a pivot-carrying fastening member, which form grip band receiving holes and receiving channels and which have inner sides forming concave arc surfaces. The bore-carrying fastening member forms a bore that rotatably receives a pivot formed on the pivot-carrying fastening member therein. The locking member forms two flanges, which are respectively receivable in the receiving channels of the bore-carrying fastening member and the pivot-carrying fastening member so that the bore-carrying fastening member and the pivot-carrying fastening member are combinable together with the locking member with the concave arc surfaces of the bore-carrying fastening member and the pivot-carrying fastening member and a concave arc surface of the locking member together define and delimit a conic bore for receiving and fastening the elastic object.

The invention provides an overdamped vibration isolator capable of generating negative stiffness through inclined magnets. The overdamped vibration isolator comprises a central shaft, wherein three bosses are sequentially arranged in the axial direction of the central shaft; the central shaft is connected with an upper fastened end cover and a lower fastened end cover through a pair of mutually-pressed springs; a pair of mutually-pressed springs is arranged between the two bosses in the middle and at the bottom of the central shaft and used for limiting an intermediate annular permanent magnet and enabling the intermediate annular permanent magnet to axially move; a sliding bearing is mounted on the top part of the upper end cover and used for limiting the central shaft and enabling the central shaft to axially move; inclined annular permanent magnets are fastened onto the upper end cover and the lower end cover; the inclined magnets fixed to the upper end cover and the lower end cover and the annular permanent magnet form magnetic springs for supplying negative stiffness to the vibration isolator. A portion of the vibration energy of an object subjected to vibration isolating is transferred to the annular permanent magnets, so that the vibration can be reduced; meanwhile, phase difference occurs between the elastic recovery forces of positive stiffness and negative stiffness, so that the vibration isolator can inhibit the vibration in a resonance area through the overdamping property. The overdamped vibration isolator has the characteristics of being high in bearing capacity, simple in structure, convenient to use, low in cost, and wide in applicable scope.

A device supporting arm is composed of a plurality of arms, an adjacent arm is equipped with a fixing side positioning guiding member arranged on a bearing thereof, another arm is equipped with a movable side positioning guiding member, possesses a rod of a pushing and pressing part and a locking part. After adjacent arms are adjusted at any rotation angle, by rotating an operating rod towards a specified direction, the movable side positioning guiding member is pushed and pressed towards the fixing side positioning guiding member via the pushing and pressing part, so that the pushing and pressing part is clamped with the locking part to lock the rotation angles between arms. By rotating the operation rod towards a reverse direction, the locking is relieved. By the structure, various devices, such as monitor, etc., can be kept at the specified position required by users in the long term and stably.

The invention relates to a steel three-dimensional framework unit. The steel three-dimensional framework unit comprises a plurality of upright columns, transverse beams and a steel bridge deck, wherein each transverse beam is arranged at the upper part of the corresponding upright column; the steel bridge deck is arranged on the beams; an asphalt concrete pavement is paved at the flat surface of the upper end of the steel bridge deck; the columns and the transverses form a framework for erecting the steel bridge deck. The invention also relates to a steel three-dimensional combined framework built by the steel three-dimensional framework unit, and application of the steel three-dimensional combined framework; the steel three-dimensional combined framework is used for high-level bridges, low-level bridges, driving access, pedestrian access, and parking spaces. The steel three-dimensional framework unit has the advantages that the whole steel three-dimensional framework unit is made of recoverable material, the installation and detachment are easy, the construction time is shortened, the influence to a road is little, the functions are diversified, and the steel three-dimensional framework unit belongs to the technical field of road building.

The invention discloses a remote demonstration teaching method of a mobile network. The method comprises the following steps of S1, logging in a mobile client by a student on mobile equipment; S2, entering a curriculum selecting module by the student and selecting a teaching material of the corresponding process for playing and studying; S3, the studying interface of the curriculum selecting module simultaneously comprises a part for displaying the specific content of the teaching unit and a part for displaying a demonstrating video; and S4, calling a demonstrating video by the student according to the process of the teaching material through information of a demonstrating unit, and performing simulation or actual operation demonstration studying in studying the teaching material. The remote demonstration teaching method has advantages of improving independence between the teaching material and the demonstrating video, more conveniently performing changing adjustment on the teaching material and the demonstrating video, and conveniently calling the demonstration video with the corresponding curriculum type through an interface between sub-modules.

The invention discloses a convenient waist training device for free combat, which comprises a base plate, a fixed shell, a stepping motor, a rotating shaft, a gear, a rack board, a chute, a trigger plate, a first travel switch, a second travel switch, a water storage chamber, a piston, a guide rod, a buffer pad and a water storage box, a first avoiding hole, a fixed ring, a second avoiding hole, asupport frame, a first auxiliary roller, a second auxiliary roller, a third auxiliary roller, a pull rope, a belt, a support seat, a hanger, chains, and a sandbag. First, through the adjustable waistload-bearing design, the convenient waist training device for free combat cannot only improve the training staff's waist training, but also according to different training level or physical conditionachieve the waist load intensity adjustment, and expand the practicality of the training. Then through the sandbag cooperation effect, the convenient waist training device for free combat can achievethe waist load-bearing training of the training staff, and also be convenient for the training staff to carry out boxing training, and finally achieve good popularization and application.