494results about How to "Quick connection" patented technology

The invention relates to the technical field of elevators, and discloses an elevator car interior protection structure based on multi-dimensional buffering, which comprises four groups of first splicing devices, two groups of second splicing plates and eight groups of third splicing plates, the first splicing devices comprise a plurality of groups of first splicing plates, and connecting grooves are formed in the front and rear sides of the plurality of groups of first splicing plates; a first hinge is arranged in a connecting groove of the first splicing plate, a plurality of sets of first connecting devices are connected between the second splicing plates and the third splicing plates, the first splicing devices, the two sets of second splicing plates, the eight sets of third splicing plates and the first connecting devices are matched with screw blocks, so that the device can be quickly assembled; and meanwhile, field processing is not needed, the upper side of the second splicing plate on the front side is movably connected with a turning plate, the device does not need to be fixed to the inner wall of an elevator car after being installed, therefore, rigid connection with an elevator is not needed, and the installation speed and efficiency of the device are improved through the method.

The utility model discloses a switching module with a quick-release switching structure based on a mobile communication line, which comprises a communication switching line, an adapter is arranged on one side of the communication switching line, a base is arranged at the bottom of the adapter, a sleeve is fixedly connected to one side of the base, a telescopic rod is connected to one side of the sleeve, and the telescopic rod is connected to the other side of the communication switching line. A plurality of grooves are formed in the outer wall of one end of the telescopic rod, a first supporting spring and a second supporting spring are fixedly connected into the grooves respectively, one end of the telescopic rod is telescopically connected with a first clamping block and a second clamping block, one end of the telescopic rod is inserted into the groove in one side of the communication patch cord, and a through hole is formed in one end of the sleeve. The through hole is matched with the first clamping block in structure, a through hole is formed in the end of the groove in one side of the communication patch cord, and a second clamping block is inserted into the through hole. The device not only can realize quick connection of the adapter and the communication patch cord, but also facilitates disassembly of the adapter and the communication patch cord, and improves the disassembly and assembly efficiency of the adapter and the communication patch cord.

The utility model provides a kind of cable joint, comprising: connecting device, fixed part and sealing device, connecting device includes upper half cover and lower half cover, lower half cover is set to the bottom of upper half cover, fixed part is set to the inside of upper half cover, sealing device includes two sealing grooves, two air bags and two pressing blocks, two sealing grooves are all opened in the inside of upper half cover, two air bags are respectively fixedly installed in two sealing grooves, two pressing blocks are respectively slidingly connected in the inside of two sealing grooves.The utility model provides a kind of cable joint and cable, when merging connecting device, multiple pressing blocks are extruded to air bag, so that air bag side occurs inflation, the surface of cable is sealed at the same time, pressing block is contacted with the surface of cable, cable is positioned, to facilitate fast connection between two cables at the same time, cable is sealed, increase work efficiency.

The utility model discloses an automobile sensor protection device, and relates to the technical field of protection devices. The automobile sensor protection device comprises a sensor body, a filter screen, a first protection shell and a second protection shell, a sleeve is fixedly arranged at one end of the sensor body, embedding grooves are formed in the two sides of the filter screen, a limiting mechanism is arranged on the surface of the sleeve, and the first protection shell and the second protection shell are arranged in the limiting mechanism. And connecting mechanisms are arranged on the surfaces of the first protective shell and the second protective shell. According to the utility model, the first protective shell and the second protective shell can be quickly connected through the connecting mechanism, so that the first protective shell and the second protective shell are locked, the device can realize convenient disassembly and assembly of the first protective shell, the second protective shell and the filter screen, and a disassembly and assembly tool is not needed in the disassembly and assembly process, so that the working efficiency is improved; and the sensor main body can be prevented from being damaged when a dismounting tool is used, so that the protection of the sensor main body is realized.

The utility model discloses an automatic curling iron. The automatic curling iron comprises a heating hair clamping part, a rotating part and a hairdressing claw, the heating hair clamping part is arranged at one end of the handle and comprises a first clamping plate and a second clamping plate, the bottom surfaces of the first clamping plate and the second clamping plate are planes, and the side surfaces are cambered surfaces; the rotating part is arranged on the periphery of the heating hair clamping part and is in transmission connection with a driving piece for driving the rotating part to rotate; the haircut claw is arranged on the rotating part, the haircut claw and the rotating part are connected through a buckle assembly, and the haircut claw and the rotating part are provided with positioning and inserting assemblies; the hair cutting claw is detachably installed on the rotating part through the buckle assembly, the rotating part drives the hair cutting claw to curl hair, when the hair needs to be straightened, the hair cutting claw is detached, the hair is placed between the heating hair clamping parts, the hair straightening effect is achieved, two modeling effects can be achieved through one product, cost is saved, and carrying is convenient.

The utility model relates to the technical field of gas preparation, and discloses a gas standard substance preparation device which comprises a gas distribution main pipeline and a connecting pipe, a quick release assembly is arranged on the connecting pipe, a safety assembly is arranged on the gas distribution main pipeline, the quick release assembly comprises a mounting block, and an insertion block is movably connected in the mounting block. According to the gas standard substance preparation device, firstly, two pull rods on a mounting block are pulled outwards to the farthest end, a clamping block is straightened to the farthest end along with a sliding block, a spring is compressed, then an insertion block at the top of a gas storage bottle is inserted into a cavity in the mounting block till the top of a connecting base is attached to the bottom of the mounting block, the pull rods are loosened, and under the elastic force action of the spring, the gas storage bottle is fixed to the mounting block. When the gas storage cylinder needs to be disassembled, the pull rod is pulled outwards, the fixing effect of the clamping block on the inserting block is relieved, then the gas storage cylinder is pulled out downwards, quick disassembly can be completed, and the advantage that the gas storage cylinder is convenient to disassemble and assemble is achieved.

The utility model relates to pipeline connection technical field, and disclose a pipeline connection assembly for water conservancy irrigation, the right end of connecting sleeve has established sealed groove no.

The utility model relates to the technical field of grinding wheels, and discloses an ultrathin high-speed grinding wheel which comprises a grinding wheel body and is characterized in that connecting flanges are fixedly connected to the two sides of the grinding wheel body respectively, a protection mechanism is arranged outside the grinding wheel body, and the protection mechanism is used for protecting the grinding wheel body in the transferring or installing process. A connecting mechanism is arranged in the grinding wheel and used for installing and connecting the grinding wheel to machine equipment. The protection mechanism comprises an inner protection cover and an outer protection cover, the inner protection cover is slidably connected to the outer portion of the connecting flange, the outer protection cover is slidably connected to the outer portion of the inner protection cover, and two mounting shells are fixedly connected to the outer portion of the outer protection cover. According to the grinding wheel mounting device, the pin rod drives the limiting block to compress the spring to retract into the mounting shell, at the moment, the inner protective cover can slide out of the outer protective cover, the inner protective cover is completely detached for grinding wheel mounting, the situation that the grinding wheel is damaged is avoided, and the practicability of the device is improved.

The application discloses a cold-pressing connection method for high-voltage outgoing lines and tap switches of a transformer, which comprises the following steps: firstly, determining the wire specifications and the wire quantity to be connected, and determining the tinned copper sleeve specifications; calculating the filling rate according to the wire cross-sectional area and the effective internal area of the tinned copper sleeve, so as to determine the wire quantity to be crimped and the filling wire; performing paint removal treatment on the wire end part to be cold-pressing connected, and the filling wire should be subjected to the paint removal treatment; and cold-pressing the wire by using a cold-pressing tool. The method replaces the existing traditional welding connection mode, the whole operation process is simple, different specifications of the high-voltage outgoing lines and the tap switches of the transformer can be quickly connected, the unique filling mode can ensure the tensile strength and the current-carrying performance of the wire, improves the wiring quality, and greatly improves the production efficiency.

The utility model relates to the technical field of quickly-spliced aluminum alloy formworks, and discloses a quickly-spliced aluminum alloy formwork which comprises a main machine body, connecting assemblies and auxiliary fixing assemblies, the connecting assemblies are clamped in the main machine body, and the auxiliary fixing assemblies are distributed in a matrix mode and installed on the two sides of the outer wall of the main machine body; the connecting assembly is arranged, so that a specific splicing groove or a splicing hole can be formed conveniently so as to be quickly connected with other parts, an elastic abutting plate can abut against a front clamping block only by pushing a push rod, the front clamping block is clamped in a groove hole, and a rear elastic abutting plate can also play a certain supporting and fixing role; and an auxiliary fixing assembly and a wear-resistant layer are arranged, the situation that the stability of the device is reduced after an internal connecting assembly goes wrong in the working process of the device is avoided, the hardness and wear resistance of the surface of the device can be remarkably improved through the wear-resistant layer, and the service life is prolonged.

The utility model discloses a cleaning agent self -suction type cleaning brush, including the casing, the bottom rotation of casing is equipped with the brush head, and the top is equipped with the water outlet pipe of fixed setting, and the inside is equipped with the drive assembly of transmission connection with the brush head, the bottom of brush head is equipped with the water jet, the upper end of water outlet pipe is linked with outside inlet valve, and the lower extreme is passed through the casing and is set and is opposite water jet, and the side detachable connection has the jar for storing cleaning agent, be equipped with self -suction device in water outlet pipe, the jar is linked with water outlet pipe through self -suction device, and self -suction device is suitable for the cleaning agent in negative pressure suction jar, the utility model discloses the clean water and cleaning agent separate storage, and realize the automatic mixing of cleaning agent and clean water when using, guarantee the cleaning effect, make the cleaning agent have longer effective period, convenient for the user to use.

The utility model relates to the technical field of transition section pipeline connection, specifically is a kind of pipe network construction transition section pipeline connection structure, including transition pipe, the both sides of transition pipe are fixedly installed with connecting assembly, and the one end of transition pipe is fixedly installed with first pipeline body by connecting assembly, and the other end of transition pipe is fixedly installed with second pipeline body by connecting assembly, and connecting assembly includes two access pipes, and two the access pipe is fixedly installed at the both ends of transition pipe;The utility model installs transition pipe between two caliber different access pipes, when working, fluid passes through first pipeline body, and when fluid is guided under the conical inner wall of transition pipe, gradually increase the flow rate of fluid, avoid the flow rate and pressure fluctuation of excessive in short time, produce greater pressure to the connecting area between first pipeline body and second pipeline body, to protect the connecting area, improve the service life of connecting area.

The utility model discloses a pressure adjusting device of a portable self-connection filtering pressure reducing valve. The pressure adjusting device comprises a base, a left air cylinder, a right air cylinder, an interface assembly, a plugging part, an air cylinder control switch, a test control switch and a pressure detection device, the left air cylinder and the right air cylinder are respectively arranged on two different sides of the base; the air source is connected with the left air cylinder and the right air cylinder through the air cylinder control switch; the air source is connected with the left air cylinder through the test control switch; the left air cylinder is connected with the plugging part through the connector assembly, and the right air cylinder is connected with the plugging part through the connector assembly. And the right air cylinder is connected with the pressure detection device. According to the working principle of the filter pressure-reducing valve, the hose, the base left air cylinder, the base right air cylinder, the interface assembly, the plugging part, the air cylinder control switch, the test control switch and the pressure detection device are designed, so that the pressure adjustment and inspection of the filter pressure-reducing valve do not need to be carried out on a specified comprehensive test bed test, the pressure adjustment is more convenient, and the test efficiency is improved. And the inspection time can be reduced.

The utility model belongs to the technical field of facility agriculture, and particularly relates to a water and fertilizer integrated irrigation system suitable for facility agriculture, which comprises support legs and a storage tank, a first water pipe is fixedly installed on the inner walls of the supporting legs, a second water pipe is fixedly installed at the top of the first water pipe, a water inlet assembly is arranged at one end of the first water pipe, and a material pumping mechanism is arranged at the top of the second water pipe; a rotating mechanism is arranged on the inner wall of the second water pipe; a stirring assembly is arranged on the inner wall of the second water pipe, and an irrigation assembly is arranged at the end, away from the first water pipe, of the second water pipe. The water inlet assembly comprises a connecting port and a water pump, through the arrangement of the connecting port and the water pump, a user can conveniently and rapidly connect an external water pipe with the first water pipe through the connecting port, the installation speed during irrigation is guaranteed, and the water pump can pump a water source into the first water pipe to supply water to the irrigation assembly.

The utility model relates to the technical field of bus ducts, and discloses a bus duct capable of being connected side by side, which comprises a first bus duct, a second bus duct, a third bus duct, a fixed block I and a fixed block II, and a connecting block is fixedly mounted on one surface, close to the second bus duct, of the fixed block I. According to the bus duct capable of being connected side by side, rapid positioning among the first bus duct, the second bus duct and the third bus duct can be achieved through cooperation of the connecting blocks and the connecting grooves, and rapid limiting of the connecting plates can be achieved through cooperation of the limiting rods, the second limiting grooves and the first limiting grooves; the rapid connection among the first bus duct, the second bus duct and the third bus duct is realized, the installation efficiency is high, the maintenance is convenient after long-time use, the heat dissipation of the copper bars in the first bus duct is convenient through the design of the ventilation holes, the copper bars in the first bus duct are prevented from working in a high-temperature environment for a long time, the damage is avoided, and the service life of the bus duct is prolonged. The overall normal use is influenced, and the practicability is relatively high.

The invention relates to the technical field of fluid conveying, and discloses a double-channel fluid connecting device which is characterized in that a fixing part is provided with a first pipeline and a second pipeline; the first pipeline is provided with a first butt joint opening, the second pipeline is provided with a second butt joint opening, and the second butt joint opening is coaxially arranged in the first butt joint opening in a sleeved mode. A first annular channel is formed between the second butt joint port and the first butt joint port; the movable part is provided with a third pipeline and a fourth pipeline; the third pipeline is provided with a third butt joint port, the fourth pipeline is provided with a fourth butt joint port, and the fourth butt joint port is coaxially sleeved with the third butt joint port; a second annular channel is formed between the fourth butt joint port and the third butt joint port; one path of fluid is transmitted through the second pipeline, the second butt-joint opening and the fourth butt-joint opening; and the other path of fluid is conveyed through the first pipeline, the first annular channel, the second annular channel and the third pipeline. Rapid butt joint of two paths of fluid is achieved, the two paths of butt joint faces are coaxially designed, and the butt joint precision requirement is lowered.

The utility model belongs to the field of electric power line fault monitor, specifically is a kind of electric power line fault monitor with hardware installation structure, including monitor, the bottom of the back of monitor is fixedly connected with hinge in axial symmetry, the top of hinge is fixedly connected with telescopic subassembly, the top of telescopic subassembly is fixedly connected with positioning assembly, the top of the back of monitor is fixedly connected with frame in axial symmetry, the side of frame is fixedly connected with rubber pad;Through the wire slot bearing electric power line of positioning assembly, and through rotating outer-screw pipe drive its inside detection probe along thread hole and compact electric power line of setting of interference fit, realize the quick, firm, adjustable and anti-loosening connection of detection probe and electric power line, in combination with the buffering effect of rubber ring, effectively prevent the connection slackening caused by vibration or external force, guarantee the long-term stability of signal detection and the accuracy of measured data.

The utility model provides a kind of modular combination's energy storage cabinet structure, AC cabinet and DC cabinet separate modularization design, can be combined into different specifications energy storage cabinet according to demand, reduce assembly manufacturing and design cycle, low in cost;Including base body and top plate, base body is equipped with limit slide, the DC cabinet and AC cabinet bottom corresponding limit slide are equipped with corresponding limit sliding slot, DC cabinet and AC cabinet are installed on base body by limit slide, limit sliding slot cooperation and side by side, and connect common top plate to be combined into energy storage cabinet, DC cabinet and AC cabinet are two separate closed cabinet body structure, the cabinet plate of AC cabinet adjacent side with DC cabinet is opened with wiring through mouth, detachably assembled with the butt joint shell corresponding to wiring through mouth on the cabinet plate of DC cabinet, accommodation cavity is formed between wiring through mouth and butt joint shell, butt joint female head in DC cabinet is installed in accommodation cavity, butt joint male head in AC cabinet is connected with butt joint female head by wiring through mouth.

The utility model discloses a dustless workshop ceiling structure, including suspender, main keel and vice keel, the top of main keel is equipped with a plurality of quick -mounting jack field, and the bottom of suspender is assembled with the positioning assembly, and the positioning assembly is used for cooperation quick -mounting jack field realizes the locking between suspender and main keel, and the bottom of main keel is equipped with a plurality of quick -mounting sliding slot, and vice keel sliding connection is in quick -mounting sliding slot inside, and the outside of suspender bottom is provided with the stability -maintaining subassembly, and the stability -maintaining subassembly is used for locking the position of vice keel, and the bottom of vice keel is connected with the ceiling board through screw, and the positioning assembly includes guide cylinder, displacement rod, the utility model relates to dustless workshop technical field, the utility model discloses through the structure cooperation of positioning assembly and quick -mounting sliding slot, can under not help screw etc. connecting piece's condition, realizes the quick connection between suspender, main keel and vice keel, effectively alleviated the operation intensity of personnel, and effectively shortened the construction period.

The utility model is suitable for three -way joint technical field provides a kind of three -way joint, including three -way main body and three joint assemblies, three -way main body front and rear end face is symmetrically provided with connecting hole, and joint assembly includes fixed pipe, connecting pipe, sealing ring and fixed cap, and the one end of sealing ring is provided with conical part, and the outer edge of conical part is contacted with the inner wall of fixed cap;Connecting hole can be completely embedded in counterbore when connecting nut or cap, to complete the hiding of nut or cap, so that the front and rear end face of three -way main body is even, and multiple three -way main bodies can be connected side by side as a whole, and the front and rear end face is closely adhered when side by side connection, reduce the occupied space of three -way joint, suitable for printer internal dense pipeline layout scene;Joint assembly can realize the quick sealing function of three -way joint, improve sealing effect, reduce the operation difficulty, realize the quick and stable connection of ink pipe and three -way joint, ensure the long -term stable operation of ink supply system.

The utility model relates to the technical field of stainless steel water pipes, in particular to a combined connection type stainless steel water pipe. According to the technical scheme, the stainless steel water pipe comprises a stainless steel water pipe body and a combined connecting ring, annular connecting inserting grooves are formed in the positions, close to the edges, of the upper surface and the lower surface of the combined connecting ring, and the ends of the stainless steel water pipe body are located in the annular connecting inserting grooves; a plurality of threaded holes are formed in the positions, close to the upper surface and the lower surface, of the outer surface of the combined connecting ring in an annular array at equal intervals, fixing screws are movably inserted into the threaded holes, and a drill bit is fixedly connected to one ends of the fixing screws through fixing connecting rods. The stainless steel water pipe connector facilitates quick connection of stainless steel water pipes, improves working efficiency, facilitates follow-up disassembly, and also improves scene applicability.

The utility model discloses a quick-release angle brace system for supporting a foundation pit, belongs to the field of foundation pit construction, and solves the problems of inconvenience in disassembly and assembly and incapability of flexible adjustment in the traditional mode of welding and connecting components. The device comprises two bases, the bases are in an isosceles triangle shape, the bevel edges of the two bases are detachably installed on the inner sides of the right-angle edges of an integrated profile steel waist beam respectively, a movable head is arranged on one base, and a diagonal bracing steel pipe is arranged between the other base and the movable head. The quick supporting system can be quickly mounted and dismounted, and the construction efficiency and the construction quality are remarkably improved. The angle brace system eliminates the defects of a welding mode, can be flexibly adjusted according to field conditions and design requirements, and can be repeatedly used after being disassembled, and the service life of the angle brace system is long.

The utility model discloses an unmanned aerial vehicle paddle quick dismounting structure and belongs to the technical field of unmanned aerial vehicles. The mounting shell and the middle matching block are arranged, the inserting block is arranged in the sliding groove of the mounting shell, the clamping groove matched with the inserting block is formed in the middle matching block of the paddle, rapid connection between the paddle and the base can be achieved through matching of the inserting block and the clamping groove, and the inserting block is separated from the clamping groove by pulling the U-shaped handle. The paddle and the base can be quickly disengaged through the quick connection and the quick disengagement, so that the paddle can be quickly replaced under the condition that no tool exists outdoors; and by arranging the stand column and the turning plate, after the stand column and the turning plate penetrate through the inserting groove of the middle matching block, the turning plate is turned downwards to be adsorbed in the sinking hole, secondary fixing of the paddle can be achieved, and the connecting strength is improved.

The utility model relates to an argon blowing ball head metal seal automatic connection joint structure which comprises an argon connection joint, an argon feeding joint and a base, the argon feeding joint is arranged on the base in a sliding mode, an elastic assembly is arranged between the argon feeding joint and the base, a sleeve is arranged in the argon connection joint in a rotating mode, and a driving assembly is arranged between the sleeve and the argon feeding joint. According to the utility model, through the mutual cooperation among the driving assembly, the elastic assembly, the transmission structure and the lock catch assembly, not only can the quick connection between the argon receiving joint and the argon feeding joint be realized, but also the argon receiving joint and the argon feeding joint can be quickly connected after the connection is completed, and the connection is convenient. The argon receiving connector and the argon feeding connector can be locked, the situation that the argon receiving connector and the argon feeding connector completely depend on the gravity of the steel ladle and are insufficient in sealing performance when accidental shaking occurs is avoided, and due to the fact that the argon receiving connector and the argon feeding connector are always kept in the locking state, even if the height or position of the steel ladle needs to be adjusted, the sealing effect cannot be affected.

The utility model belongs to the technical field of airplane wheel drivers, and discloses an airplane wheel driver convenient to maintain, which comprises a mounting frame, an airplane wheel speed reducer is fixedly mounted at the top of the mounting frame, a fixed box is fixedly mounted on one side of the airplane wheel speed reducer, and a first screw rod is rotatably mounted on the inner side of the mounting frame. A connecting plate provided with a machine wheel driving motor slides into the inner side of a moving frame through a sliding-in block, at the moment, a control motor can be controlled to drive a second lead screw to rotate, the second lead screw can drive a first lead screw to rotate through a bevel gear, and the first lead screw can drive the moving frame to be stressed through thread fit after rotating; the sliding rod can limit the moving frame, the moving frame can slide after being stressed, the control block above the airplane wheel driving motor can slide into the meshing groove above the connecting block, the airplane wheel driving motor is controlled to drive the driving shaft and the control block to rotate, and the airplane wheel speed reducer can drive the airplane wheel after speed reduction.

The utility model provides a kind of camera assembly mounting device, it is related to educational apparatus technical field, comprising: first assembly shell, second assembly shell and connecting device, accommodating groove is opened in first assembly shell, and the opposite two side walls of accommodating groove are provided with the positioning slide rail for the installation positioning of control circuit board;Second assembly shell and the top and bottom of first assembly shell are detachably connected by detachable connecting assembly, and the mounting end portion for detachably installing camera assembly is provided on second assembly shell;Connecting device includes assembly connecting piece arranged on the side of second assembly shell away from first assembly shell.

The utility model relates to filter box fixing technical field discloses a kind of multilayer filter box fixing device, including multiple multilayer box, and the fixed assembly is arranged on the outer wall of multilayer box, and the fixed assembly includes multiple fixing frame, multiple the fixed frame inside is fixedly connected with multiple connecting plate, multiple the connecting plate one side is fixedly connected with nut, the nut inside is all screw thread connection with screw, and the other end of screw is rotatably connected with sliding block, and the sliding block one side is fixedly connected with support plate. In the utility model, by being placed into the fixed frame inside multilayer box, then by rotating screw, so that sliding block slides in connecting plate inside, drive limiting plate and multilayer box outer wall to be inlaid, reach the effect of fixing multilayer box by the extrusion effect of multiple limiting plate, solve the problem that traditional rigid fixing mode is prone to causing component loosening, equipment displacement and medium leakage, improve the stability of filter equipment operation.

The utility model relates to the field of battery cells, in particular to a polymer cell structure with pins easy to connect, which comprises a cell shell, a top shell is mounted at the upper end of the cell shell, and one end of the top shell is provided with an end notch; the connecting mechanism is installed on the inner wall of the end notch, and the surface of the connecting mechanism extends to the position above the top shell; wherein the connecting mechanism comprises a connecting assembly installed on the inner wall of the end notch, a guide assembly is arranged on the inner side of the connecting assembly, and the guide assembly is connected to the inner wall of the connecting assembly in a sliding mode; the two elastic pieces are arranged in the side grooves, the effect of quick connection is achieved in the connecting process, meanwhile, the two elastic pieces are distributed in a staggered mode through the side grooves, the connecting pins are inserted between the two adjacent elastic pieces, the two elastic pieces can be tightly attached to the surfaces of the connecting pins under the action of elastic potential energy, connection tightness is kept, and the using effect is guaranteed after welding.

The utility model relates to a butt joint positioning device for floating bridge modules. A quick positioning and connecting device for a floating bridge and a pontoon bridge is composed of a positioning mechanism and a connecting mechanism, and the positioning mechanism is composed of a positioning rod (108), a positioning baffle (103), a movable clamping rod (106), a buffer spring (105), a steel wire rope (104) and a winch (101); the movable clamping rod (106) is connected with the positioning baffle (103) through the buffer spring (105), the positioning baffle and the winch are fixedly connected with one floating bridge or pontoon bridge unit, and the positioning rod (108) is fixedly connected with the other floating bridge or pontoon bridge unit. One end of the steel wire rope is connected with the winch (101), and the other end of the steel wire rope penetrates through a strip-shaped ring (107) arranged at the front end of the movable clamping rod (106) to be fixed to the positioning baffle (103). According to the connecting structure, accurate positioning of the connecting structure of the pontoon bridge and the pontoon bridge and rapid connection of the pontoon bridge and the pontoon bridge unit can be achieved, the butt joint time of the pontoon bridge and the pontoon bridge is greatly shortened, and the connecting efficiency of the pontoon bridge and the pontoon bridge is improved.