491results about How to "Achieve stretch" patented technology

The invention discloses a multi-field coupled environment simulating and online monitoring / observing system. The system comprises: a main body test box provided with a quartz observing window and an infrared window; a mechanical loading module comprising two coaxially arranged mechanical loading shafts and respectively connected with the main shafts of a universal testing machine and a sample clamping device; a multi-field service environment module arranged outside the main body test box and comprising an infrared laser rapid heating device, an X-ray radiation device, a corrosion gas box and a cooling system and respectively used for realizing heating, irradiating, corroding and cooling environments; and a damage online monitoring / observing module comprising a surface / interface strain real-time observation system, an in-situ fracture behavior observation system, a damage signal collecting system and an infrared thermodetector which are arranged outside the main body test box, and damage signal detectors arranged at the upper end and the lower end of a tested sample, and wherein devices contained in the damage online monitoring / observing module are respectively used for real-time capturing of strain information, in-situ fracture image information, damage information and temperature information, and synchronously run through a cynchronous control system.

This invention provides one single fiber light nipper melt process method to catch and operate arc micro structure for micro object, wherein, it processes one end of light fiber with arc micro structure light fiber; other end of fiber is coupled to micro light; the laser is reflected from fiber needle to form focus field to form stable three dimensional position well to realize single fiber light nipper.

The invention discloses a three-dimensional stress cell culture device capable of applying a dynamic load. The device comprises a shell with a liquid outlet and a liquid inlet, a clamping device which is arranged in the shell and used for clamping a biological structure, a driving motor for providing a driving force to the clamping device, a heating device for heating a culture solution in the shell, a temperature sensor for detecting the temperature of the culture solution and outputting temperature signals, a tension sensor for detecting the tension of the biological structure and outputting tension signals, and a controller for receiving the temperature and tension signals and outputting control signals to the driving motor and the heating device according to the received signal information. The device disclosed by the invention is simple in structure, low in manufacturing cost and easy to operate. The device can carry out a force-controllable reciprocating stretching operation on a biological structure according to a set program to simulate an in vivo environment so as to culture cells through operations on a liquid crystal display screen after the biological structure mixed with cells is arranged in the cell culture device.

The invention provides a temperature-control high-speed large-strain membrane two-way stretching device and an experimental method thereof. A servo motor drives four #-shaped guide rails to move, and a membrane sample is stretched through a scissors mechanism. A high-pressure pneumatic clamp quickly clamps the sample and can realize pressure compensation. Two independent temperature control furnaces are respectively used for preheating the device and stretching the sample. A hot air circulating system can be adopted to realize rapid temperature rise of the control furnaces and also can ensure the temperature uniformity of cavities. Tension sensors are respectively mounted in two stretch directions and used for collecting stress-strain information in the membrane stretching process. The servo motor drives a ball screw so as to enable a stretch part to be switched among different stations. The temperature-control high-speed large-strain membrane two-way stretching device can realize two-way synchronous stretching, two-way asynchronous stretching, limited one-way stretching and unlimited one-way stretching, thus being a good device for simulating industrial membrane stretching processing and establishing the relationship between processing parameters and the membrane structure performance.

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.

A disclosed double-motor-driven sling chair mechanism comprises a pedestal, and a first driving head, a second driving head, a tail-part adjusting support assembly and a middle-part adjusting support assembly are arranged on the pedestal; the first driving head drives the tail-part adjusting support assembly to show a vertical state, a flat state or an inclined state; the middle-part adjusting support assembly is in matched connection with a front-part adjusting connection rod part; the second driving head drives the middle-part adjusting support assembly to show a vertical state or a flat state, and drives the front-part adjusting connection rod part to show an opened state or a contraction state; and the front-part adjusting connection rod part is tightly locked by the tail-part adjusting support assembly when being in the contraction state, and is released by the tail-part adjusting support assembly when being the opened state. Through the above way, the double-motor-driven sling chair mechanism is capable of realizing extension and contraction of a food rest of the sling chair, uplift and decrease of a sling chair frame, and inclination, erection and other functions of a backrest, and is flexible and convenient to operate.

The invention discloses a DP (Digital Processing) decoding and automatic resolution adjusting liquid crystal display module testing method and a device, and relates to the field of liquid crystal display module testing. The testing method comprises the following steps of: decoding DP video signals to obtain video data and video parameter information thereof, wherein the video parameter information comprises resolution parameters; matching the video data with video data required by a liquid crystal display module to be tested according to the video parameter information and the video parameter information of the liquid crystal display module to the tested; conducting video encoding processing to the matched video data according to the communication interface and the video time sequence parameter of the liquid crystal display module to be tested to obtain video testing signals which are matched with the communication interface of the liquid crystal display module to be tested, and the video testing signals test the liquid crystal display module to be tested. The DP decoding and automatic resolution adjusting liquid crystal display module testing method and the device have the advantages that the energy consumption is lower during liquid crystal display module testing, the resolution can be automatically adjusted according to the liquid crystal display module, the liquid crystal display modules of different types can be automatically adapted, and not only is the testing cost lower and the testing efficiency higher, but also the energy consumption is lower and the stability and the reliability are higher.

The invention discloses a flexible circuit board and a manufacturing method thereof and a display device. The flexible circuit board comprises a substrate, at least one conductive structure and a contact resistor group which are arranged on the substrate, packaging layers which are used for packaging the conductive structures and the contact resistor group and a ventilation membrane. The contact resistor group comprises a first contact resistor and a second contact resistor which are used for being electrically connected with the two ends of the conductive structures. The packaging layers andthe substrate form a cavity and a liquid storage region which are mutually communicated. The conductive structures comprise liquid conductive material arranged in the cavity. The liquid storage regionis used for storing the liquid conductive material. The ventilation membrane is used for packaging the liquid storage region and enabling the liquid storage region to be communicated with the external atmospheric pressure. When the flexible circuit board is stretched, the liquid conductive material in the conductive structures flows because of the change of the air pressure so that conduction between the liquid conductive material and the first contact electrode and the second contact electrode can be realized and the flexible circuit board is enabled to be stretchable.

The invention discloses a high-barrier bi-directionally stretched polythene film and a preparation method thereof. The high-barrier bi-directionally stretched polythene film comprises a polythene structural layer, an ethane-ethenol copolymer blocking layer and a agglutinating resin layer set between the polythene structural layer and the ethane-ethenol copolymer blocking layer. The polythene structural layer, the agglutinating resin layer and the ethane-ethenol copolymer blocking layer are bi-directionally stretched by co-extrusion to form a film. The high-barrier bi-directionally stretched polythene film of the invention has excellent blocking property and mechanical property as well as high mechanical strength and stiffness.

The invention discloses a flexible display, so as to realize folding or extending of the flexible display and realize real-time 3D animation display according to user needs. The flexible display comprises a flexible substrate, a display device arranged on the flexible substrate, and an array circuit. Lines of the array circuit are distributed above or below the flexible substrate in an array mode and are crossed to form multiple crossing points. The array circuit is wholly or partially made of a shape memory material. The shape memory material generates deformation under physical excitation and can be recovered. The invention also provides a flexible display manufacturing method. The method comprises steps: the flexible substrate is manufactured and the display device is manufactured on the flexible substrate; the shape memory material is wholly or partially deposited above or below the flexible substrate; photoetching technology is used for manufacturing the array circuit whose lines are distributed in an array mode and crossed to form multiple crossing points; and the shape memory material generates deformation under physical excitation and can be recovered.

The invention provides a tension and compression-reversing coupling loading testing device for inspecting a gas tube structure, and relates to the tension and compression-reversing coupling loading testing device. The invention aims to solve problems that different testing devices are needed for respectively testing gas tube structures with different lengths and different diameters under a tension and compression-reversing coupling loading test, and a standard testing device is lacked for carrying out the tension and compression-reversing coupling loading test to the gas tube structures with different dimensions. According to the tension and compression-reversing coupling loading testing device, a tension and compression loading system, a reversing loading system and a movable baffle plate are arranged on a fixed platform; the tension and compression loading system comprises a tension and compression loading baffle plate, a lead screw, a force measuring sensor and a handle; the reversing loading system comprises a reversing dial, a reversing loading fixing baffle plate, a reversing loading rod, an idler wheel and a bearing; and the tension and compression loading fixing baffle plate and the reversing loading fixing baffle plate are reversely arranged on two ends of the fixed platform, and fixedly connected with the fixed platform. The tension and compression-reversing coupling loading testing device for inspecting a gas tube structure provided by the invention is applied to the tension and compression-reversing coupling loading test of the gas tube structure.

The invention discloses site detection equipment for mechanical properties of steel bars. The site detection equipment comprises a clamp, a base and a supporting device, wherein the clamp and the base are respectively provided with a first installing hole and a second installing hole which are coaxial; at least one of the first installing hole and the second installing hole is internally provided with a steel-bar fixing and clamping device; the supporting device can drive the clamp to move relatively to the base along the axial direction of the first installing hole and the second installing hole. The site detection equipment disclosed by the invention has the advantages that the structure is simple, the assembly is convenient, the steel bars in various states in engineering can be detected, the accuracy of the detection results of the steel bars can be ensured and the quality of engineering construction is guaranteed.

A leather-like sheet excellent in stretchability which is obtained by integrating by entanglement of a woven or knitted fabric and an ultrafine fiber of 0.0001 to 0.5 dtex, wherein at least one face of the leather-like sheet is substantially composed of said ultrafine fibers, and said woven or knitted fabric consists of a conjugate fiber in which two or more kinds of polyester-based polymers, at least one of which consists essentially of polytrimethylene terephthalate, are stuck along the fiber length direction side-by-side, or a conjugate fiber in which two or more kinds of polyester-based polymers, at least one of which consists essentially of polytrimethylene terephthalate, forms an eccentric sheath-core type conjugate structure, and the fiber constituting the woven or knitted fabric has a twist coefficient of 20000 or below.

The invention relates to integrated automatic molding equipment and molding method for three-way pipes, and belongs to the technical field of automatic machining. The molding equipment comprises a loading device, a flaring device, a molding device, a shifting system, and a subsequent processing device for non-axisymmetric processing of pipe fittings; the molding device comprises a molding clampingmold; the subsequent processing device comprises a clamping mold; the shifting system is used for clamping and shifting the pipe fittings clamped on the molding clamping mold onto the clamping mold and enabling the pipe fittings to at least locate in a clamping mold clamping state or a pipe clamp clamping mold of the shifting system in the whole process of shifting the pipe fittings from the molding device onto the subsequent processing device; and the clamping mold clamping state and the pipe clamp clamping state are both clamping states with positionable rotating angles of the pipe fittingsaround axes. Based on the cooperation between the shifting system and each function unit, the equipment can maintain the positioning precision of the pipe fittings in the molding process, and can bewidely applied to such manufacturing fields as aviation, refrigeration and vehicles.

The invention discloses a double-acting gradually-advancing type prestress plate four-axis pulse electromagnetic shape adjusting and nature adjusting device. An electromagnetic coil is installed on a piston rod of a middle hinged shaft hydraulic cylinder, and the electromagnetic coil can have the movement of rotating around the axis of the electromagnetic coil, moving along the axis of the electromagnetic coil, moving along the Y axis of space and swinging by four degrees of freedom through a horizontally-moving and swing driving assembly. A plate feeding frame assembly is used for positioning a plate through a plate clamping assembly installed on the plate feeding frame assembly, and the plate can be driven to move along the X axis of the space. A flexible die and a frame pressing assembly are matched for bending and pre-loading the metal plate and bearing the pulse electromagnetic force generated during work of the electromagnetic coil. The movement that the plate gradually advances in the length direction of the plate and the movement that the electromagnetic coil gradually advances and adjusts the shape in the width direction of the plate can be sequentially executed alternately, the function of the pulse electromagnetic force generated by the electromagnetic coil on the whole curved surface of the plate is achieved through the cooperation of the two movements, and the shape adjusting function and the nature adjusting function are achieved on the metal plate having a certain initial prestress state.

The invention provides an automatic processing machine for fried bread sticks, belongs to the technical field of food mechanical equipment, and solves the problems that the conventional automatic processing machine for fried bread sticks is low in efficiency, and fried bread sticks produced by the conventional automatic processing machine are poor in quality. The automatic processing machine for fried bread sticks comprises a rack, wherein a transmission belt is arranged on the rack; the rack is connected with two side plates and a pressing plate; the rack is connected with a cutter and movable plates in a sliding manner; a movable block is connected onto each of the movable plates in a sliding manner; a material grabbing rod is connected onto each of the movable blocks in a rotating manner; a clamping jaw is arranged at one end of each material grabbing rod; the rack is fixedly connected with an oil groove; a plurality of rotating shafts are connected to the interior of the oil groove in a rotating manner; a plurality of material stirring plates are fixedly connected onto the outer circumferential wall of each of the rotating shafts; a material turning block is connected onto each of the two opposite groove walls of the oil groove; a feeding groove is fixedly connected with one end part of the oil groove on the rack; two material placing rods are fixedly connected to a position above the feeding groove on the rack. According to the automatic processing machine for fried bread sticks, paste can be automatically processed into fried bread sticks, and the degree of automation and efficiency are high.

The invention relates to the field of automobile accessories, in particular to a novel axial fatigue tester. The novel axial fatigue tester comprises a workbench, a lower U-shaped connection base, an upper connection board, a support pole, an upper U-shaped connection base and a main oil cylinder, wherein the lower U-shaped connection base is arranged in the middle of the workbench; the upper connection board is arranged above the workbench; the support pole is arranged between the workbench and the upper connection board; the upper U-shaped connection base is arranged in the middle of the lower end face of the upper connection board; and the main oil cylinder is arranged on the upper end face of the upper connection board, and the lower end of a piston rod of the main oil cylinder is integrally connected with the upper U-shaped connection base. Due to the structure, the stretching and compression of a thrust rod can be realized, so that sinusoidal wave is realized, and the tester is convenient to use and simple in structure.

The invention provides a pneumatic joint-type rehabilitation manipulator. A pneumatic joint (2) is of a retractable pleated airbag structure; a wrist air inflation and deflation part (11) is communicated with the airbag structure of the pneumatic joint (2); a finger part (13) is matched with a connection structure of the hand bone, and a plurality of knuckle parts (131) on the finger part (13) aresequentially and rotatably connected and rotatably connected to a palm part (12) separately; the knuckle parts (131) are driven to rotate through the extension and retraction of the pneumatic joint (2) and provided with a wearing structure (3) for fixing the human hand. The pneumatic joint-type rehabilitation manipulator is suitable for training of patients with hand diseases in various occasionsespecially at home, helps the patients with the hand diseases to carry out correction rehabilitation training and is suitable for not only rehabilitation persons who cannot conduct active training with the hands and but also users who can carry out active training to a certain degree. The manipulator is simple in structure, convenient to manufacture and carry, easy to operate, economical and practical and has good market prospects.

The invention discloses an automatic elevating apparatus and method of an aeration tube of a floating aerator, and belongs to the technical fields of water restoration and water treatment. The apparatus comprises a slide rail fixed on a floating aerator floating body, slidable mechanical arms are arranged at the top feet of the slide rail, the bottom foot of every mechanical arm is provided with a slidable aeration branch tube, a rope of a pulley group mechanism pulls a large fixed pulley fixed above the mechanical arm slide rail, the large fixed pulley coaxially drives a small fixed pulley having a certain ratio relative to the large fixed pulley to rotate, and the small fixed pulley controls the top feet of the X-shaped mechanical arms to move apart or close up, so a case that a rising or descending distance of the aeration branch tubes driven by the X-shaped mechanical arms is almost same to a distance of a weight moving closer to the water level is realized, and a gas conveying flexible tube is synchronously retracted or released by a gas conveying tube telescoping mechanism. The apparatus and the method allow the aeration tubes to be positioned in specific positions above the riverbed, reduce the disturbance to riverbed sediments and improve the oxygen charging efficiency.

The invention discloses a sportsman leg physical therapy device. A bed board is arranged at the upper portion of a bedstead. The bed board is formed by sequentially connecting a shank supporting plate, a thigh supporting plate, a hip supporting plate and a back supporting plate; a chest protecting mechanism is arranged on the back supporting plate, a hip rotating mechanism is arranged on the hip supporting plate, and the chest protecting mechanism and the hip rotating mechanism are movably connected in a matched mode through a linkage mechanism, a shank massaging mechanism for massaging shanks is arranged on the shank supporting plate, and a thigh massaging mechanism for massaging the thighs is arranged on the thigh supporting plate; a controller which is in signal connection with the chest protecting mechanism, a linkage mechanism, the shank massaging mechanism and the thigh massaging mechanism is arranged at the lower portion of the bedstead; a sportsman can have a rest on the device and does not need to cooperate actively, automatic position adjustment can be achieved when the sportsman just lies flatly, and the phenomenon that other portions are aching and tired due to the fact that the sportsman is kept in one gesture can be avoided.

The invention provides a man-machine interactive platform, comprising a drawing engine, which is used for displaying a graph or a word; a sound engine, which is used for combining a sound for broadcasting; an image identifying engine, which is used for identifying the format of a graph input by a user and triggering different functions; a cross-platform module, which is used for realizing the cross-platform function; and a man-machine interactive module, which is used for displaying a man-machine interface; wherein the man-machine interactive module is connected with the cross-platform module by an interface through the drawing engine; the image identifying engine and the sound engine are connected through an interface, and are respectively connected with the cross-platform module through an interface; each module is arranged on a man-machine interactive hardware device; and the cross-platform module is interacted with an operating system. The invention can be applied in various embedded graphic display devices that need the man-machine interface interaction, and provides a brand new intuitive feeling to users in vision, hearing and touch.

The invention provides a wearable lumbar vertebra rehabilitation treatment device which mainly comprises a main platform, a massage platform, an auxiliary platform and a flexible belt for connecting the three platforms together. The main platform also comprises an inner supporting frame, a motor mounting rack, a first motor, a small gear, an arc-shaped gear ring, a first waist ring, a first fixingbelt and an outer housing. The auxiliary platform also comprises a second motor, a second waist ring, a second fixing belt and a controller. The massage platform comprises a massage motor, a massagebase massage head, an installing table and a fixing belt. The wearable lumbar vertebra rehabilitation treatment device drives the human waist to twist leftward and rightward through rotation of the first waist ring, drives the human waist to perform leftward-rightward swing and vertical movements through movement of connecting rod assemblies and achieves lumbar vertebra stretching while leftward-rightward swing. In addition, the wearable lumbar vertebra rehabilitation treatment device can conduct rehabilitation treatment on the human waist, can also massage the human waist and is more beneficial to rehabilitation of human waist.

The invention relates to the field of flexible mechanical hands, in particular to a flexible exoskeleton glove device. The device comprises a flexible exoskeleton glove and a drive device, wherein thehand back side of the flexible exoskeleton glove is provided with a flexible drive connecting piece and a hand back side drive line, the upper side of the flexible drive connecting piece is fixedly connected with the tail end of each finger except for the thumb, the lower end of the flexible drive connecting piece is connected with the back side drive line, the index finger and the middle fingerat the palm side of the flexible exoskeleton glove are each provided with a holding drive line and a kneading drive line, wherein the holding drive lines extend along the fingers, the tail ends of theholding drive lines are connected with the tail ends of the fingers, the kneading drive lines extend along the fingers to any joint and then are wound to the palm back side to be connected with the flexible drive connecting pieces at the finger back side, a plurality of drive mechanisms are arranged inside the drive device, and the holding drive lines, the kneading drive lines and the hand back side drive lines are driven by different drive mechanisms to pay off or take up lines. A patient with no activity capability can be helped to complete daily grabbing activity, carrying is convenient, and no injury is caused to the hand of the patient.

The invention discloses a children stroller with an electric opening and closing function. When a stroller frame is folded, firstly, an unlocking transverse rod (38) is lifted to jack a back lower support assembly (9) and release the locking states of back foot pipes (4), then the unlocking transverse rod (38) is outwards rotated to drive an unlocking pull rod (37) to rotate, a first power source switch (26) is triggered, a motor (23) is started to drive a gear (21) to counterclockwise rotate, and an upper gear rack (22) and a lower gear rack (32) are driven to move to the opposite directions, so the stroller frame is automatically folded. After the stroller frame is folded, a handlebar pipe of the stroller frame is lifted, a second power source switch (25) is pressed, the starting motor drives a gear (21) to clockwise rotate, and the upper gear rack (22) and the lower gear rack (32) are driven to move to the opposite directions, so the stroller frame is automatically unfolded. The children stroller with electric opening and closing functions has the advantage that the stroller frame can be automatically opened and closed, so a user does not need to bend down, the waste of labor is avoided, and then the stroller frame can be opened and closed.

The invention discloses a glass tube heating and firing device for manufacturing a high borosilicate glass container, and relates to the technical field of high borosilicate glass tube processing; andthe device comprises a fixing frame, a nozzle communicated with a gas tank is slidably mounted on a limiting frame, a locking mechanism used for clamping the end of a glass tube is fixed on a guide rod, and a motor II is in driving connection with a driving mechanism used for driving the guide rod to slide transversely. According to the invention, the end part of the glass tube can be clamped andfixed through the arranged locking mechanism; the arranged driving mechanism can drive the two guide rods to move back to back, so stretching of the glass tube is realized; the stretching plastic part of the glass tube is heated and fired by the flame sprayed by the arranged nozzle; the transverse position of the glass tube corresponding to the nozzle can be adjusted through the arranged translation mechanism, so the adjusting flexibility in the firing process is greatly promoted, meanwhile, the distance between flame and the glass tube can be adjusted through the lifting mechanism, the firing temperature adjusting effect is achieved, and the heating firing effect of the glass tube is greatly improved.

The invention relates to a stretchable and foldable adjacent-edge protective railing, including multiple combination units, and each combination unit comprises two transverse pipes; two ends of each transverse pipe are inserted into a first transverse rod, the two transverse pipes are vertically arranged, a vertical first threaded rod is arranged between each two transverse rods, the upper end andthe lower end of each first threaded rod are sleeved by inner threaded pipes in a matched mode, the upper end of each upper inner threaded pipe is fixedly connected with the bottom of one upper transverse pipe, and the lower end of each lower inner threaded pipe is fixedly connected with the top of one lower transverse pipe. When not in use, the stretchable and foldable adjacent-edge protective railing can be folded after being contracted, is convenient to store and fetch. The stretchable and foldable adjacent-edge protective railing can be quickly installed and used after being taken out andopened, does not need to consume a large amount of time and manpower for temporary assembly during use, can meet the requirements of building adjacent edge protection in different length spaces, andcan change the angle between adjacent combination units according to actual needs, so that the extension direction of the combination unit is changed.

The invention relates to an integrated movable emergency communication base station. The base station comprises a movable chassis, a base station room and a rotary type telescopic communication tower, wherein the base station room is arranged on the movable chassis, and the rotary type telescopic communication tower is arranged in the base station room. The rotary type telescopic communication tower comprises multi-stage tower bodies, the multi-stage tower bodies are erected on a tower base of the movable chassis through a rotating shaft in the middle of a first-stage tower body, all the multi-stage tower bodies of the rotary type telescopic communication tower are located in the base station room when contracting and overturning to be in a horizontal state, the top end of the first-stage tower body of the multi-stage tower bodies is supported through a supporting frame arranged on the movable chassis, and the multi-stage tower bodies of the rotary type telescopic communication tower extend out of the base station room through a skylight arranged in a roof of the base station room when overturning to be in a vertical state. The integrated movable emergency communication base station solves the problem that an existing communication base station is inconvenient to move and complicated to erect and has the advantages of being small in size, convenient to move, simple to erect, good in stability, wide in application range and the like.

The invention discloses an adjustable safety and anti-theft transformer, which comprises a casing, the top of the casing is provided with a top cover, the left and right side walls of the inner cavity of the casing are provided with slide grooves, the outer walls of two sets of slide grooves are provided with sliders, and the sliders Matching with the chute, a connecting rod is arranged between the two groups of sliders, a screw hole is arranged on the outer wall of the top cover, an adjusting bolt is arranged on the top of the top cover, the bottom of the adjusting bolt penetrates the bottom of the screw hole, and the top of the connecting rod There is a positioning screw groove, and the adjusting bolt is connected with the connecting rod through the positioning screw groove. The adjustable safety and anti-theft transformer of the present invention can realize the compression and stretching of the coil by rotating the knob, change the inductance parameter in the intermediate frequency transformer, and change the inductance of the coil. Quantity, so as to realize the precise adjustment of the inductance of the transformer, and the safety protection performance is good, which can effectively prevent theft. In addition, it is convenient for wiring, has a certain shock absorption and anti-seismic ability, and has good stability.