30results about How to "Flexible length change" patented technology

The invention discloses a telescopic wind duct for a wind tunnel. The wind duct at least comprises two big wind ducts and one small wind duct; the two big wind ducts are movably connected by the small wind duct; the telescopic wind duct is specifically characterized in that two end parts of the small wind duct are respectively stretched into the big wind ducts; the external wall of the small wind duct is matched with the internal walls of the big small ducts in a sliding manner; the end parts of the big wind ducts are provided with rubber rings; chutes are arranged at intervals on the external wall of the small wind duct; and rollers are arranged at the bottoms of the big wind ducts. According to the telescopic wind duct for the wind tunnel, the heavy overall wind tunnel is divided into a plurality of conveniently moved telescopic wind ducts, so that the length of the telescopic wind duct can be flexibly changed; moreover, the big wind ducts are provided with the rollers, so that each part can be moved conveniently; and the parts can be self-assembled according to the requirements, so that the wind tunnel is applicable to multiple experimental tasks.

The invention discloses a multifunctional examination bed, which belongs to the field of medical equipment. The multifunctional examination bed comprises a bedstead and a bed board fixed on the bedstead, guardrails are fixed on the head, tail and one side of the bed board, a square rotary shaft is arranged on the other side of the bed board, a detachable guardrail is arranged on the square rotaryshaft, the detachable guardrail comprises a plurality of telescopic tubes which are arranged at intervals from top to down, two vertical tubes are respectively fixedly connected both ends of the telescopic tubes, the ends, which are far from the telescopic tubes, of the two vertical tubes are provided with clamping devices, and the detachable guardrails are clamped by the clamping devices. According to the invention, since the guardrails are arranged around the bed board and the detachable guardrail is arranged on one side, the safety of an infant is ensured; moreover, because an air bag is arranged, a patient can lie on the bed head to perform treatment or examination; because a television screen is arranged, the patient can kill boring time, and in particular, the attention of an infantpatient can be attracted, so that the infant patient cannot easily make a noise.

The invention discloses a steel-concrete composite structure damage measurement system. The system comprises: a fiber bragg grating measurement group, a fiber bragg grating temperature compensation group, a fiber bragg grating demodulator, a display, an acoustic emission measurement device and an extensometer. The fiber bragg grating measurement group and the fiber bragg grating temperature compensation group are arranged on the surface of a steel beam at the interface of a longitudinal steel-concrete composite bridge, the surface of a steel beam at the interface of a transverse steel-concretecomposite bridge and the surface of an embedded steel bar in a steel-concrete composite structure; wherein the fiber bragg grating measurement group and the fiber bragg grating temperature compensation group are connected to the fiber bragg grating demodulator, the fiber bragg grating demodulator is connected to the display, and the acoustic emission measurement device comprises an acoustic emission sensor, a data line, a sensor fixation device and an acoustic emission acquisition instrument; the acoustic emission sensor is installed on the surface of a concrete slab and is connected to the acoustic emission acquisition instrument through a data line, and the acoustic emission acquisition instrument is connected to the display. The extensometer is pre-buried in concrete and used for measuring the displacement difference between the steel beams and concrete.

The invention discloses a message processing method based on a distributed network. The method comprises the following steps: 1, formulating a message format; 2, formulating a generation rule of eachformat in the message; 3, generating a message according to the generation rule and the variable message domain rule in the step 2, and sending the message according to a code agreement and a sendingrule; and 4, receiving the message generated in the step 3 according to code agreement and a receiving rule, and performing message indexing and subsequent processing according to message semantics toobtain information carried in the message. The method aims at solving the problems of various message types, different security levels, high time sensitivity and the like in a wireless private network formed by distributed nodes such as an unmanned aerial vehicle group and the like. By designing a variable message format conforming to private network services, defining transceiving rules of different messages in a network, designing a forming method of each functional domain, and quickly addressing and distributing the messages according to semantics and the rules, the processing efficiency of the messages in the network is improved.

The invention relates to the technical field of mechanical part paint spraying, in particular to a paint spraying robot for mechanical parts. The paint spraying robot for the mechanical parts comprises a base, wherein the top face of the base is fixedly connected with a top plate; the top face of one end of the top plate is fixedly connected with a side plate; the top face of the top plate and the inner side of the side plate are each provided with two symmetrically-distributed arc-shaped sliding grooves; an oil paint supply module is arranged between every two adjacent arc-shaped sliding grooves; the bottom face of the top plate and the outer side of the side plate are fixedly connected with arc moving mechanisms; and each arc moving mechanism comprises a fixed block and a guide block. According to the paint spraying robot for the mechanical parts provided by the invention, motors I drive threaded rods to rotate and drive moving blocks connected with the threaded rods in a screwed mode to move, so that a supporting pipe I and a supporting pipe II longitudinally move along the arc-shaped sliding grooves, a supporting pipe III and a supporting pipe IV transversely move along the arc-shaped sliding grooves, a paint spraying pipe I, a paint spraying pipe II, a paint spraying pipe III and a paint spraying pipe IV can conveniently conduct multi-angle uniform paint spraying on the parts, and the working efficiency of paint spraying is improved.

The embodiment of the invention provides a text processing method, device and equipment, and the method comprises the steps: obtaining a first text and a target number, wherein the number of characters included in the first text is greater than the target number; and deleting at least one first word in the first text to obtain a second text, the number of characters included in the second text being less than or equal to the target number, and the smoothness of the second text being greater than a preset threshold. Through the process, the length of the text can be flexibly changed, the universality of text application is improved, and meanwhile the quality of the converted text is guaranteed.

The invention relates to the technical field of batons, in particular to a portable baton. The portable baton comprises an outer pipe, a middle pipe and an inner pipe, wherein the middle pipe is movably connected into the outer pipe in an inserting mode, the inner pipe is movably connected into the middle pipe in an inserting mode, clamping devices are arranged in the middle pipe and the inner pipe, and a threaded section formed in the side wall of the outer pipe is in threaded connection with an inner threaded sleeve; and through the clamping devices, the relative positions of the outer pipe,the middle pipe and the inner pipe are fixed, external force is applied to the middle pipe and the inner pipe, then the middle pipe and the inner pipe are pushed into the outer pipe, the outer pipe,a first screw rod and a second screw rod abut against one another, and the inner threaded sleeve is connected with the threaded section, the first screw rod and the second screw rod at the same time,so that the relative positions of the outer pipe, the middle pipe and the inner pipe are fixed. According to the baton designed by the technical scheme, the length can be flexibly changed, the baton is convenient to carry, the relative positions of the outer pipe, the middle pipe and the inner pipe are fixed through the inner threaded sleeve, the threaded section, the first screw rod and the second screw rod, the structure is simple, operation is convenient, and the fixing effect is good.

The invention discloses electric wire and cable manufacturing equipment. In order to realize the above objective, the invention provides electric wire and cable manufacturing equipment. The equipmentcomprises a bottom plate, a wire core, a self-adaptive control box, a wire cable, a limiting plate and an action box. Supporting sheets are arranged on the upper side surface of the bottom plate. Thetop of the supporting sheet is fixedly connected with the bottom end of the first support through welding. The top of the first support and the top of the second support are connected and fixed through a first bolt. Bearings are fixed to the bottoms of the front end and the rear end of the second support through a third series of bolt sets, a first rotating shaft, a second rotating shaft and a third rotating shaft are arranged between the front disc and the rear disc, and the first coil, the second coil and the third coil are each formed by winding a thin wire core, a middle wire core and a thick wire core. According to the technical scheme, the technical problems that in the prior art, the multi-line type wire and cable machining capacity is not achieved, and the length of a detected linecannot be adjusted are effectively solved, and application and popularization of the device are facilitated.

The invention provides a manufacture method of an X-ray optical spatial filter, a direction adjustment method of the X-ray optical spatial filter and a device. With the methods and device adopted, at least one defect selected from a defect of incapability of flexibly changing the directions of light guide tubes, incapability of flexibly changing the lengths of the light guide tubes and incapability of flexibly adjusting the numbers of the lines and columns of a light guide tube array of an existing X-ray optical spatial filter can be eliminated. The manufacture method of the X-ray optical spatial filter provided by the invention includes a filtering sheet superposition method or a filtering tube arrangement method. According to the X-ray optical spatial filtering device provided by the invention, the directions and lengths of light guide tubes can be flexibly changed, or the numbers of the lines and columns of a light guide tube array can be flexibly adjusted.

The invention relates to the technical field of grommet machines, and discloses an adjustable processing arm of a manual grommet machine for clothes processing. The adjustable processing arm comprisesa handheld rod, wherein anti-slide sleeve is fixedly arranged at the left end of the outer side of the handheld rod. According to the adjustable processing arm of the manual grommet machine for clothes processing, a rotary loop bar is provided, and a threaded hole matched with a threaded rod is formed in the rotary loop bar. When the length of the processing arm needs to be adjusted, the rotary loop bar is rotated, and the threaded rod is driven to rotate under the thread thrust force generated during rotation of the rotary loop bar. The left side of the threaded rod is provided with a pushing plate and a slide bar, the rotation of the threaded rod is limited, and the threaded rod can only move leftwards and rightwards, so that the length of the processing arm can be changed flexibly. A telescopic rod and a compression spring facilitate the movement of the threaded rod at a certain degree, so that the overall structure is more stable; the effect of adjusting the length of the processing arm is achieved; and greater convenience is brought to use.

The invention discloses a special transportation device for wind power blades, which belongs to the technical field of transportation equipment. The special transportation device comprises a power device and a first frame. The power device is connected with the first frame. A flange adjusting device is arranged on the first frame. The flange adjusting device comprises a fixing frame, a flange, a rotating body and a rotating shaft, and the rotating body is connected with the flange. Symmetrical hydraulic rods are further arranged on the two sides of the rotating body, a motor support is further arranged on the fixing frame, a driving motor is installed on the motor support, an output shaft of the driving motor is connected with a wire wheel, the first frame and a second frame are connected through a fixing device, symmetrical sliding grooves are further formed in the second frame, symmetrical sliding blocks are arranged on the lower portion of the fixing support, the sliding blocks are clamped in the sliding grooves, the lower part of the fixing support is further provided with a polygonal fixing groove, and a U-shaped block is installed in the fixing support.According to the invention, the technical problems that existing transportation equipment cannot be flexibly used and transportation cost needs to be additionally increased when the transportation equipment goes uphill are solved, and the special transportation device is mainly applied to wind power blade transportation.

The invention discloses a window pasting machine, which comprises a frame and a conveying device for conveying plastic films, and also includes more than two punching devices arranged on the frame, and the punching devices are used for Holes are punched on the plastic film, and each punching device can be aligned front and back along the conveying direction of the plastic film. In the present invention, each punching device can punch mounting holes independently to improve production efficiency, and the through holes punched by each punching device can also be partially overlapped, so that mounting holes with different shapes from the punch can be obtained. This makes the shapes of the mounting holes that can be processed by this window sticking machine more abundant and diverse, especially for long-shaped mounting holes. By changing the punching interval of each punching device, it can be changed without changing the punch. The distance between each through hole can flexibly change the length of the installation hole, which effectively increases the scope of application of the window sticking machine, reduces the cost of replacing and purchasing punches, and also reduces the impact on production efficiency, making it easy to use.

An embodiment of the invention relates to the field of communication technology construction, and discloses a threading device. The threading device comprises a first poker and a connecting poker which is composed of at least two segments. One end of the first poke, and one end of each segment of the connecting poker are provided with same snapping parts. One end, which is deviated from the snapping part, of the first poke is provided with a traction head. One end, which is deviated from the snapping part, of each segment of the connecting poker is provided with an accessing part which is adapted with the snapping part. The accessing part of each connecting poker is used for connecting with the snapping part of the first poker or each connecting poker. The threading device according to theinvention has advantages of relatively small integral occupation size, convenient transportation, convenient construction, convenient maintenance after damage, and relatively low maintenance cost.

The invention discloses an installation lifting device for heliostats and a lifting method of the heliostats. The installation lifting device for the heliostats comprises a main arm, vertical arms and supporting arms. The installation lifting device for the heliostats further comprises extension arms. The extension arms are arranged at the two ends of the main arm. The other end of each extension arm is connected with the corresponding vertical arm. The other end of each vertical arm is connected with the corresponding supporting arm. The main arm comprises a main arm beam, main arm supports, lifting lugs and flange plates. The flange plates are welded to the two ends of the main arm beam. The main arm supports are perpendicularly arranged at the two ends of the main arm beam. The lifting lugs are arranged at the two ends of the main arm supports. The installation lifting device for the heliostats can be used for installing different heliostats of different power stations and be utilized repeatedly.