51results about How to "Reasonable installation structure" patented technology

The invention provides a double-air-inlet range hood. The double-air-inlet range hood comprises a box body, an air deflector and a switch panel, wherein a smoke collection chamber is arranged on the inner side of the air deflector; an opening for communicating the smoke collection chamber with the outside is formed between the switch panel and the air deflector; a left air inlet and a right air inlet are formed in the base plate of the smoke collection chamber; a division board is arranged between the two air inlets; an air inlet seal plate is arranged on the back of the smoke collection chamber in a hinged mode; the air inlet seal plate is provided with a driving device for driving the air inlet seal plate to overturn; a group of smoke detection devices is arranged in each of the two areas, separated by the division board, of the smoke collection chamber, and the smoke collection chamber is further provided with a controller for controlling the driving device to adjust the overturning angle of the air inlet seal plate. The double-air-inlet range hood has the benefits that the left air inlet and the right air inlet are formed, inlet air of the left air inlet and inlet air of the right air inlet do not disturb with each other through the division board arranged in the middle, and the air inlet seal plate capable of overturning is arranged, so that the double-air-inlet range hood is simple in structure and reliable in action; the opening of the air inlets of the air inlet seal plate is automatically adjusted by detecting smoke concentration, so that the efficiency of the range hood is fully utilized, and the adaptability is good.

The invention discloses a double-hollow glass ceiling module with a film suspended therein. An optical control film serves as a middle layer, and an internally suspended film structure frame, a mounting structure frame, a reinforcing separating strip and glass are sealed into an integral double-hollow glass plate. An inner structure frame and an outer structure frame are made from a novel heat-isolating material with a coefficient of thermal expansion similar to that of the glass. The internally suspended film structure frame is structurally connected through a heat-isolating bridge. A butyl rubber tape on the outer surface of the internally suspended film structure frame serves as a first sealing layer. A second sealing layer consists of the external reinforcing separating strip and a silicone structural sealant, the whole structure is always consistent to the thermal deformation of the glass, so that the sealing capability of the whole system is more reliable, and the heat-isolating property, the moisture condensation-preventing property, the sound-isolating property and the like are greatly improved. Dirt is not easily accumulated on the outer surface of a mounted ceiling, so that the ceiling is convenient to clean and maintain. The double-hollow glass ceiling module has a flexible assembling and mounting way, and can be applied to different vertical surfaces of an outer building rail.

The invention discloses a milk maker, which comprises a support cylinder, a base for placing a milk making bottle, and a water barrel, wherein the inside of the support cylinder is provided with a driving motor, the support cylinder is provided with a powdered milk barrel, a rotating shaft is inserted into the bottom surface of the powdered milk barrel, and the rotating shaft is linked with an output shaft of the driving motor; the inside of the powdered milk barrel is provided with a link mechanism, the link mechanism is connected with a powder pushing block, and the powder pushing block can travel to the outer wall, which is provided with a powder falling cavity, of the powdered milk barrel; the milk making bottle is arranged below the powder falling cavity, a stirring shaft is inserted into the bottom surface of the milk making bottle and is provided with stirring blades, and the stirring blades are positioned in the milk making bottle; the inside of the base is provided with a mechanism for driving the rotation of the stirring shaft; and the inside of the water barrel is provided with a water pump, the water pump is connected with a water outlet pipe, and a tail-end water outlet of the water outlet pipe aligns with a bottle mouth of the milk making bottle. The milk maker realizes the integrated automation of automatic and quantificational powdered milk taking, water feeding and automatic stirring.

The invention discloses a lifting form concrete chimney construction method. The specific technical scheme is that the method comprises the steps of 1, mounting a lifting template system; 2, mounting a building material lifting mechanism; 3, mounting a building material translation mechanism; 4, mounting an external hanging hoisting basket device; 5, performing lifting form construction; 6, lifting a derrick; 7 vertically conveying building materials; 8, horizontally conveying the building materials; 9, enabling operation personnel to stand. Aiming at the serial mechanisms and devices of a lifting form type chimney, the lifting form concrete chimney construction method is adopted, the traditional slide form and guide form construction processes are replaced with less investment, the effects of safety, quality, efficacy, low cost, environment friendliness and the like in chimney construction are realized; the design is novel, the equipment is reasonable in mounting structure, convenient to manufacture, convenient to use, safe and reliable, the efficacy can be improved, the cost is reduced, the environment influence is reduced, and the lifting form type concrete chimney construction method belongs to an ideal novel operation method.

The invention provides a double-pushing-plate high-temperature sintering kiln for producing vanadium-nitrogen alloy. The kiln comprises a main kiln (1), an auxiliary kiln (2), a kiln head pushing mechanism (3), a kiln tail pushing mechanism (4), an electric heating system, an air inlet system, an air exhaust system and a control system, and the main kiln (1) is provided with a primary restoration and water draining segment, a secondary restoration nitridation and K+ / Na+ discharging segment, a high-temperature sintering densification segment, a cooling nitrogen fixing segment and a cooling segment in the longitudinal direction.

The invention discloses a gas pressure reducing valve. The gas pressure reducing valve comprises a valve seat, a valve bonnet, a pressure reducing mechanism and an adjusting mechanism, wherein the valve seta is matched with the valve bonnet, the pressure reducing mechanism comprises a top block, a connector, a moving part and an elastic part, the valve sat is provided with a mounting groove, the elastic part is arranged in the mounting groove, the connector is matched with the mounting groove, the moving part is arranged in the connector, and two ends of the moving part are abutted against the top block and the elastic part respectively. The top block contacts with the adjusting mechanism, the adjusting mechanism can push the top block and the moving part to move and is mounted on the valve bonnet, the valve seat is provided with a gas inlet and a gas outlet, the connector is provided with a first communication hole, and the gas inlet and the gas outlet are communicated through the first communication hole. The gas pressure reducing valve can adjust gas pressure controllably, gas can be converted into low-pressure gas effectively, gas is saved, and the gas pressure reducing valve has the advantages of simple structure, reasonable mounting structure and convenience in use.

The invention discloses a prefabricated pier omni-directional structure detection and maintenance platform which comprises a prefabricated pier surrounding structure used for being matched with a prefabricated pier, wherein a carrying frame is arranged above the prefabricated pier surrounding structure, a lifting device is arranged in the upper-layer space of the carrying frame, and a hydraulic ballast platform and a detection and maintenance platform are arranged in the lower-layer space of the carrying frame; the detection and maintenance platform is located below the hydraulic ballast platform in the working period and ballasts the hydraulic ballast platform in the non-working period; the detection and maintenance platform is connected with a hoisting device and moves in the vertical direction of the pier under the action of the hoisting device; the detection and maintenance platform is arranged on the outer side of the pier in a sleeving mode and internally provided with an annular structure, and the detection and maintenance platform is connected with the detection device in the detection working period or connected with the maintenance device in the maintenance working period; and the detection device and the maintenance device are placed on the hydraulic ballast platform in respective non-working periods.

The invention relates to a photovoltaic assembly installation structure for a photovoltaic support. The photovoltaic assembly installation structure comprises a cant beam (5), cross beams (6), and a photovoltaic assembly (7), and the top of the cant beam (5) is provided with a plurality of cross beams (6). The photovoltaic assembly installation structure is characterized in that the top of the cant beam (5) is connected with the cross beams (6) via cross beam fixing seats (9), and the tops of the cross beams (6) and the photovoltaic assembly (7) are fixed via a pressing piece (10). According to the photovoltaic assembly installation structure for the photovoltaic support, the cant beam, the cross beams, the photovoltaic assembly, the cross beam fixing seat, and an antiskid connecting seat cooperate with each other so that the structure is reasonable, the installation is convenient, and the reliability is high.

The invention relates to the technical field of office equipment and discloses an office official file management cabinet comprising a cabinet body, transverse partition plates, first connection plug-ins, baffle plates, compression springs, second connection plug-ins, limiting clamping grooves, first vertical partition plates, second vertical partition plates, connecting guide blocks and cabinet doors; according to the office official file management cabinet, the horizontal position of each transverse partition plate can be flexibly adjusted through cooperative installation of a plurality setsof connecting plug-ins and the transverse partition plates, the position space between the transverse partition plates is changed, meanwhile, the vertical partition plates can be adjusted or increased and decreased, the space in the cabinet body can be further refined, the space classification effect can be further improved, the storage space of the cabinet body can be better changed, the vertical partition plates are easy to adjust and fix, the transverse partition plates are convenient and stable in installation or disassembly work, strong applicability is achieved, and popularization and utilization of the office official file management cabinet are facilitated.

The invention discloses an installation structure for the bearings of a steel rail polishing vehicle motor, and relates to an installation structure for the bearings of a steel rail polishing vehicle motor, which mainly solves the problems of a low anti-impact capacity, instable transmission, a low load and a low reliability of the structure that single-row deep groove ball bearings are usually used at a transmission end of the existing steel rail polishing vehicle motor, and single-row angular contact bearings are usually used at a non-transmission end. According to the installation structure disclosed by the invention, two paired single-row angular contact ball bearings are used at a shaft stretching end of the motor; an outer retainer ring and a front bearing outer cover are arranged at the outer side of each single-row angular contact ball bearing respectively; an oil seal is arranged at the inner side of the front bearing outer cover; an inner retainer ring and an outer retainer ring are used between the two single-row angular contact ball bearings; a bearing inner cover and an inner oil seal are arranged at the inner side of each single-row angular contact ball bearing; deep groove ball bearings are used at a non-shaft stretching end of the motor; a waveform elastic gasket is arranged between the deep groove ball bearings and the inner cover of the bearing. The installation structure disclosed by the invention is resistant to impacts and vibrations, and adaptive to severe environments of high temperature, rain and snow, wind and sand, and the like.

The invention relates to an electric kettle thermostat including a plastic upper seat and a seesaw. A bottom end of the plastic upper seat is provided with a plugging portion. A live wire elastic sheet and a neutral wire elastic sheet are disposed on the plugging portion. A top end of the plastic upper seat is connected with an insulation cover plate. Two sides of the insulation cover plate are provided with two through-holes respectively. Thermo-sensitive temperature sensing sheet action assemblies are equipped on through-holes corresponding to top ends of operating levers. Each thermo-sensitive temperature sensing sheet action assembly comprises a thermo-sensitive temperature sensing sheet, a cap and a tight-supporting clamp spring. The thermo-sensitive temperature sensing sheets are clamped in the through-holes by the caps and the tight-supporting clamp springs. An insulation positioning frame is also connected onto a positioning platform and is fixed on the positioning platform via a fastener, and a live wire positioning conductive sheet and a neutral wire positioning conductive sheet are pressed and fixed on the positioning platform. The electric kettle thermostat is simple and reasonable in structure, secure, compact and reliable in connection, convenient in structure installation, long in service life and safe to use.

The invention discloses a variable cross-section bridge pier underwater structure detection device and a detection method thereof. The detection device comprises a top fixing mechanism, a clamping and pushing mechanism, an X-type self-adaptive detection mechanism and a fixing support, wherein the fixing mechanism surrounds a bridge pier on water through a rotatable fixing clamp; the distance between the relative positions of the detection device and the bridge pier is controlled, meanwhile, it is guaranteed that the whole device cannot shake due to water flow impact, the urgent turbulent water flow influence under major bridge detection is overcome, and the clamping and pushing mechanism clamps and pushes the X-type self-adaptive detection mechanism to wrap the bridge pier and then loosens the clamping hand. The X-type self-adaptive detection mechanism can be self-adjusted along with downward sliding to increase the opening so as to adapt to the change of the variable-cross-section bridge pier, the X-shaped self-adaptive detection mechanism moves downwards layer by layer for detection, after detection is completed, the detection mechanism is pulled back through the lifting module, the clamping and pushing device clamps and withdraws again, and the upper fixing mechanism is unlocked to complete recovery.

The invention relates to an intelligent electric appliance switch, CONTAINING A SWITCH BODY PLATE, a touch screen arranged on the switch main body board, and a connecting wire arranged on the switch main body plate and connected with the electric appliance, and an L-shaped plate arranged on the switch main body plate and used for engaging and fixing the L-shaped plate on the tabletop plate, a fastening column unit arranged on the L-shaped plate and used for clamping mounting, A magnet unit is arrange on that L-shaped plate and magnetically attracts the fasten column unit for clamping and fixing on the tabletop plate, an electrically conductive triggering unit disposed on the L-shaped plate and in a contact conductive manner for supplying power to the electromagnet unit, and an object frameunit disposed on the switch main body plate. The invention has the advantages of reasonable and effective mounting structure of the intelligent switch, convenient and quick mounting and unmounting operation, high mounting stability, good intelligent effect of the mounting structure and convenient placement of small objects.

The invention provides an essential oil aromatherapy device. The device comprises a base, a power supply, a control panel, a switch, an outer circular shell, an inner circular shell, a balancing weight block, an essential oil bottle, an air pump and an air pressure balancing pipe, the control panel and the power supply are arranged in the base, the bottom of the outer circular shell is connected with the base, the inner circular shell is slidably arranged in the outer circular shell, the balancing weight block is fixedly connected with the bottom of the inner wall of the inner circular shell,a first electrode is arranged on the outer wall of the inner circular shell, a second electrode is arranged on the inner wall of the outer circular shell, the air pump is electrically connected with the first electrode, and the power supply is electrically connected with the second electrode; the essential oil bottle and the air pump are fixedly connected with the interior of the inner circular shell, the air suction hole of the air pump is communicated with the mouth of the essential oil bottle, one end of the air pressure balancing pipe extends to the position below the liquid surface of theessential oil bottle, and a first through hole and a second through hole are sequentially formed in the inner circular shell and the outer circular shell. The essential oil aromatherapy device has the advantages of being better in anti-falling performance, simple in structure, less in energy consumption, and convenient to control essential oil concentration.

The invention discloses a chassis structure for split-type air conditioners. A left side and a right side below a chassis are provided with a left reserved hole and a right reserved hole for installing an indoor-outdoor connecting pipe respectively; a middle part below the chassis is provided with a middle-part reserved hole which has lower openings; the middle-part reserved hole is square, rectangular or semicircular; the middle-part reserved hole is slightly bigger than the indoor-outdoor connecting pipe; the inner wall of the middle-part reserved hole is smooth; and openings at two ends of the lower part of the middle-part reserved hole have smeared edges convenient for installing the indoor-outdoor connecting pipe. The chassis structure has the advantages that the number of positions for passing the connecting pipes on the chassis is changed from two to three, and then any position of a wall-passing hole on a wall can not affect installation, so that the chassis structure has a more reasonable installation structure.

The invention discloses a folding type electric lifting table which comprises a table board and two lifting stand columns located at the two ends of the table board; the two ends of the table board are each provided with a stand column stretching and folding motor, and a motor shaft of each stand column stretching and folding motor is connected with an input gear of a gear transmission mechanism; an output gear of the gear transmission mechanism is connected with a rotating shaft rotationally matched on the table board, and the stand column stretching and folding motor drives the rotating shaft to rotate through the gear transmission mechanism so as to drive the lifting stand columns fixedly connected with the rotating shaft to be switched between a horizontal state and a vertical state around the axis of the rotating shaft; a servo motor or a stepping motor is adopted as the stand column stretching and folding motor; and the input gear is meshed with a large gear of a transition gear which is coaxially connected with the input gear, and a small gear of the transition gear is meshed with the output gear. The folding type electric lifting table is easy and convenient to open and fold, time-saving, labor-saving and rapid.

The invention discloses a multifunctional water dividing valve. The multifunctional water dividing valve comprises a water dividing valve body, the water dividing valve body is connected with a waterdividing valve element, a top water outlet is formed in the top end of the water dividing valve body, a bottom water inlet is formed in the bottom end of the water dividing valve body, a valve elementinstallation opening and a side water outlet are formed in the side surface of the water dividing valve body, five cavities are arranged in the water dividing valve body correspondingly, the five cavities are separated from one another, a water control plate is integrally formed in the valve element installation opening, five water outlet holes and one valve element water inlet hole are formed inthe water control plate, the five water outlet holes are connected with the five cavities correspondingly, the top ends of the first cavity and the second cavity are connected with a first water outlet pipe and a second water outlet pipe, the first water outlet pipe and the second water outlet pipe are both sleeved with the top water outlet, the third cavity communicates with the top water outlet, the fourth cavity communicates with the side water outlet, the bottom end of the fifth cavity is connected with a third water outlet pipe, the third water outlet pipe is sleeved with the bottom water inlet, and the valve element installation opening communicates with the bottom water inlet through a valve element water inlet hole.

The invention discloses a novel integrated ceiling electric appliance. The novel integrated ceiling electric appliance comprises two integrated assemblies, and the integrated assemblies both can achieve ventilation and heating. The novel integrated ceiling electric appliance is characterized in that a volute air duct is hollow and separated to form a first chamber and a second chamber, a first airoutlet is formed in the first chamber, and a second air outlet is formed in the second chamber; the first integrated assembly is arranged in the first chamber, the second integrated assembly is arranged in the second chamber, the first integrated assembly is used for heating or replacing indoor air, and the second integrated assembly is used for heating or replacing indoor air; the volute air duct is provided with a cover plate, a first air inlet and a second air inlet are formed in the cover plate; the first air inlet is opposite to the first chamber, the first air inlet is covered with a first filter screen, the second air inlet is opposite to the second chamber, and the second air inlet is covered with a second filter screen; an iron box is further included; the volute air duct is entirely arranged in the iron box, and a first air inlet passage is formed in one side of the inner wall of the iron box.

The invention discloses a transfer bed and a bed surface device in the transfer bed. The bed surface device comprises a bed frame and a bed board arranged on the bed frame in a sliding mode. A translation frame is arranged on the back face of the bed board, a cloth cover rotating power device is arranged in the middle of the translation frame, transmission installation bases are arranged at the two ends of the translation frame respectively, a driving rod is arranged in the cloth cover rotating power device, and linkage rods are arranged at the two ends of the driving rod respectively. The ends of the linkage rods are movably arranged in the transmission installation bases at the corresponding ends and provided with driving wheels after extending out of the transmission installation bases, the pair of transmission installation bases is provided with a cloth cover rotating shaft and a pair of cloth cover guiding rods, and the cloth cover guiding rods are provided with a row of guiding idler wheels. The two ends of the cloth cover rotating shaft are arranged on the rotary guide mounting seats on the corresponding sides respectively, transmission wheels are arranged, and transmission parts are arranged on the transmission wheels and the driving wheels; and rotating cloth is wound on the bed plate and wound on the cloth cover rotating shaft. The bed surface device is particularly suitable for a transfer bed.

The invention discloses a power distribution control cabinet convenient to mount and maintain, which comprises a cabinet body frame, a device mounting frame, control cabinet doors, ventilation blinds, a top, an air flow fan and a bottom, and is characterized in that each of front, rear, left and right frames of the cabinet body frame is provided with a hinge bracket for limiting the opening degree of the door or one control cabinet door connected by a hinge; the middle part of the top is provided with the air flow fan; a rectangular base with a lower opening is arranged below the bottom; the rectangular base and the bottom are provided with concentric cable holes; the device mounting frame formed by four supports is arranged between the top and the bottom inside the cabinet body frame; symmetrical mounting plate insertion holes are arranged in the device mounting frame; and mounting plates are arranged on the insertion holes. The power distribution control cabinet convenient to mount and maintain has the advantages of convenient cooling, convenient maintenance, saved maintenance time and safe maintenance.

The invention discloses a lifting form concrete chimney construction method. The specific technical scheme is that the method comprises the steps of 1, mounting a lifting template system; 2, mounting a building material lifting mechanism; 3, mounting a building material translation mechanism; 4, mounting an external hanging hoisting basket device; 5, performing lifting form construction; 6, lifting a derrick; 7 vertically conveying building materials; 8, horizontally conveying the building materials; 9, enabling operation personnel to stand. Aiming at the serial mechanisms and devices of a lifting form type chimney, the lifting form concrete chimney construction method is adopted, the traditional slide form and guide form construction processes are replaced with less investment, the effects of safety, quality, efficacy, low cost, environment friendliness and the like in chimney construction are realized; the design is novel, the equipment is reasonable in mounting structure, convenient to manufacture, convenient to use, safe and reliable, the efficacy can be improved, the cost is reduced, the environment influence is reduced, and the lifting form type concrete chimney construction method belongs to an ideal novel operation method.

The invention provides a support frame for an electromechanical engineering control cabinet, which relates to the technical field of control cabinet installation. The support frame for an electromechanical engineering control cabinet includes a frame and a control cabinet installed on a building through the frame. The frame is provided with a locking mechanism. On both sides of the cabinet, between the upper and lower locking mechanisms on the same side, there is a guide seat plate fixed on the front wall of the frame, the two sides of the control cabinet are provided with perforations corresponding to the inside and outside of the guide seat plate, and the guide seat plate is provided with There are two upper and lower guide holes. The locking mechanism includes a guide frame with slide rails and a limit frame that slides into the guide frame through the slide rails. The locking mechanism on this fixing device has a more reasonable installation structure and is only installed on both sides of the frame. , occupies a small area.

The invention discloses a heating device for a charcoal igniter and belongs to the technical field of hand-held type electric tools. The heating device for the charcoal igniter comprises a heating wire, and further comprises a supporting plate provided with an electric conduction part; the heating wire is arranged on the supporting plate and is electrically connected to the electric conduction part; and the supporting plate is provided with a supporting part used for making the heating wire get away from the supporting plate in a suspended manner. According to the heating device, under the effect of the supporting part, it is equivalent to that the heating wire is arranged on the supporting plate in a suspended manner, the contact area between the heating wire and the supporting plate is small, heat transfer between the heating wire and the supporting plate during ignition is effectively reduced, the heat loss of the heating wire is reduced, and the success rate of ignition is increased; and meanwhile, deformation or performance changes caused when the temperature of the supporting plate is too high can be avoided. Besides, the invention further provides the charcoal igniter adopting the heating device.

The invention provides a non-circular stretching male die. The non-circular stretching male die comprises a front part, a die body and a tail part, wherein the front part, the die body and the tail part form a same cylinder with a non-circular section, which is obtained by slow-feeding wire cutting of hard alloy steel, the non-cylindrical surface is of the section required for the stretching male die (5), and a mounting hole which is vertical to the axial line is formed at the tail part. The non-circular stretching male die provided by the invention is obtained from the hard alloy steel through a slow-feeding wire cutting process without any grinding, and the obtained stretching male die is mounted through the mounting hole at the tail part.. Compared with the prior art, the non-circular stretching male die provided by the invention is obtained by wire cutting machine-shaping, so that the machining precision of the section shape of the cylinder of the die body is ensured. Simultaneously, due to the adoption of the hard alloy steel, the manufacturing cost is saved, the non-circular stretching male die has higher hardness and stronger abrasion resistance, the service life of the die is further greatly prolonged, and the actual measurement proves that the service life can be up to 40 million times, which is improved by almost 26 times in comparison with that of the original die.

A plate spring and steering knuckle connection bracket applicable to an inclined plate spring suspension comprises a connection bracket part, wherein one side of the connection bracket part is connected with a steering knuckle; the other side of the connection bracket part is connected with a plate spring; the connection bracket part comprises a plate spring fixing frame, a steering knuckle connecting shaft and a shock absorb er mounting shaft; one side of the plate spring fixing frame is irrationally matched with one end of the plate spring via the plate spring fixing shaft; the other side of the plate spring fixing frame is connected with the steering knuckle connecting shaft; and the shock absorb er mounting shaft is arranged at the bottom of the plate spring fixing frame. The plate spring and steering knuckle connection bracket has an excellent load carrying property and high reliability, and furthermore, the service life of the plate spring can be prolonged.

The invention relates to an intelligent display support arm which comprises a screw-joint plate, an upper support arm, a lower support arm, a bottom plate arranged on a desktop plate, a side plate arranged on the bottom plate, a desk bottom plate arranged on the side plate, an elastic clamping unit arranged on the bottom plate and the desk bottom plate and used for clamping a desktop plate, electromagnet units arranged on the desk bottom plate and attract the elastic clamping unit through a downward magnetic force so as to release clamping and fixing, a power-on limiting unit arranged on the side plate and used for connecting with the electromagnet units in a power-on way and limiting-protecting the elastic clamping unit, and a headset hanging unit arranged on the lower support arm. The intelligent display support arm provided by the invention has the advantages of reasonable and effective installation structure, convenience and quickness in loading and unloading, high automation degree, good installation stability, flexibility and adjustability of the installation structure, and convenience in hanging an headset body and an headset cable.

The invention relates to an automatic supporting arm for a display. The automatic supporting arm comprises a screw connecting plate used for being connected with the display, an upper supporting arm hinged to the screw connecting plate, a lower supporting arm hinged to the upper supporting arm, a baseplate arranged on a table top plate, a side plate arranged on the baseplate, a table baseplate arranged on the side plate, an elastic clamping unit arranged on the baseplate and the table baseplate and used for clamping the table top plate, an electromagnet unit arranged on the table baseplate andused for unlocking the clamping and fixing operation by attracting the elastic clamping unit through a downward magnetic force, and a power-on limiting unit arranged on the side plate and used for being electrically connected with the electromagnet unit and limiting protecting the elastic clamping unit. The supporting arm has the advantages of being reasonable and effective in supporting arm mounting structure, convenient and fast to assemble and disassemble, high in automation degree, good in mounting stability and flexible and adjustable in mounting structure.

The invention discloses a butterfly valve drive hydraulic cylinder with a locking device. A limiting ring is arranged on a front section of a rod body of a piston rod, which extends out of a cylinder body, a vertical locking hydraulic cylinder is connected above the front end of the cylinder body, an inlet and an outlet are formed in a lower cylinder cover, a spring is arranged between a piston and the upper cylinder cover in the cylinder body, the lower end of the piston rod, which extends out of the lower cylinder cover, is connected with a fork locking plate, and when the piston rod of the drive hydraulic cylinder is retracted and the piston rod of a locking hydraulic cylinder extends out downwards, a semi-round hole of the fork locking plate is propped against the front side of the limiting ring on the piston rod of the drive hydraulic cylinder. The drive hydraulic cylinder is connected with the locking hydraulic cylinder, and the lower end of the piston rod of the locking hydraulic cylinder is connected with the fork locking plate, so that a closed butterfly valve can be in a locking state. Once a hydraulic system and elements of the drive hydraulic cylinder fail to work or are falsely operated and the piston rod of the drive hydraulic cylinder is caused to tend to extend out, a butterfly valve body, a butterfly valve foot base or a pipeline which is connected with the butterfly valve cannot be damaged, and the butterfly valve closing state locking device is reasonable in position and structure.