73results about How to "Safe and stable use" patented technology

The invention relates to the technical field of waste gas treatment, in particular to a novel incineration pretreatment process for high-concentration waste gas in the hazardous waste industry. The method comprises the steps that firstly, waste gas enters a liquid seal system; 2, treating the waste gas by a liquid sealing system; step 3, vacuum analysis; 4, waste gas recovery and liquid sealing agent regeneration; step 5, RTO system processing; in the novel incineration pretreatment process for the high-concentration waste gas in the hazardous waste industry, targeted treatment can be carried out through the liquid seal system according to the concentration of the waste gas, the concentration of the high-concentration waste gas is reduced, the concentration of the low-concentration waste gas is improved, the suitability of the waste gas entering an RTO system is improved, natural gas consumption of the RTO system is reduced, the energy cost is reduced, and meanwhile, the environment is protected. When a tempering accident occurs, flame returning can be effectively prevented, the safety of a front-end device area is guaranteed, secondary disasters are completely eradicated, the unique composite liquid sealing agent can dissolve complex waste gas components, good conditions are provided for follow-up treatment, and the environmental protection property of the whole treatment process is improved.

The invention relates to an electric actuator which comprises an electric actuator shell, a control panel with electricity storage and discharge functions and a driving part. A storage and discharge module is arranged on the control panel, when an external power source is connected, the actuator uses electric power provided by the external power source, the electric power is regulated and controlled by the control panel to drive the driving component to work so as to drive the valve to be opened and closed, and meanwhile the external power source is used for charging the storage and discharge module on the control panel to store energy; when the external power supply is switched off, the control panel outputs electric energy, and the driving motor and the gear transmission part work and drive the valve to reset to a preset safe reset position. Compared with a traditional power-losing spring reset product, the super capacitor on the control panel is used as an energy storage medium, the reset position can be adjusted at will, when an external power source is normal, the action of the electric actuator does not need to overcome spring resistance, energy consumption in the working process is saved, the structure of the actuator is more compact, and the service life of the actuator is prolonged. The use is safer and more stable.

The invention relates to a thermal imaging enhanced binocular iron roughneck coupling height identification system, and the system comprises a visual device which is used for carrying out the shooting of a coupling operation region, and obtaining the image information of a wellhead region; the recognition system is used for judging whether a drill rod exists in the wellhead area in the coupling operation area or not based on the wellhead area image information, and a first judgment result is obtained; the central control system is used for controlling the visual device to shoot a hooping operation area according to a specified frequency through an identification system after an operation instruction triggered by a user is received under the condition that the first judgment result is that the drill rod exists in the wellhead area, so as to obtain iron roughneck image information; the recognition system is further used for acquiring first movement information of the iron roughneck corresponding to the operation instruction based on the image information of the iron roughneck; and the central control system is further used for controlling the iron roughneck to carry out moving operation according to the first moving information of the iron roughneck.

The utility model provides a fin copper pipe forming processing device, relates to fin copper pipe forming processing technical field, including base, fin copper pipe and fin processing structure, the right part of base upper end face is provided with the right fixed plate, and the right fixed plate is provided with three sets of linear guide rail, the linear guide rail is connected with the slide block in the sliding way, and the fin processing structure is connected with the fin copper pipe through the slide block. A sliding block is arranged on the upper end face of the base, a motor is installed on the sliding block, a rotating shaft is installed at the front end of the motor, the middle of the rotating shaft is arranged in a clamping structure in a sleeved mode, the clamping structure is clamped outside a rod body on the rear portion of a fin copper pipe, a fin machining structure is arranged below the fin copper pipe, and the fin machining structure is located on the installation base. A left supporting frame is arranged on the left portion of the upper end face of the base. The three-group fin copper pipe processing device can be used for simultaneously processing three groups of fin copper pipes, is stable and reliable in processing, avoids dislocation, contributes to guaranteeing the processing quality, and is more efficient and practical.

The utility model discloses a drainage gas recovery wellhead mechanism which comprises a gas recovery inlet main body and the ground, an annular protection piece is arranged on the ground and located on the outer side of the gas recovery inlet main body, a plurality of shaping anchor bolts are welded to the bottom of the annular protection piece, and a plurality of inclined struts are hinged to the inner surface of the annular protection piece. According to the drainage and gas production wellhead mechanism, the gas production inlet body, the ground, the annular protection piece, the base plate, the inverted cone anchor bolt, the inclined strut, the shaping anchor bolt and the mounting hole are used in cooperation, a protection structure is formed on the outer side of the gas production inlet body through the annular protection piece, and once external falling rocks impact the annular protection piece, the gas production inlet body is protected; impact force caused by impact can be directly transmitted to the ground through the annular protection part, no connecting structure exists between the annular protection part and the gas production inlet body, and therefore impact force caused by impact is generated on the annular protection part from any direction.

The utility model discloses a portable insulating rope ladder which comprises a first connecting rope, a second connecting rope and a third connecting rope, a second connecting upper rope is arranged below the first connecting rope, the third connecting rope is arranged below the first connecting rope, and assembling mechanisms are arranged at the joints of the first connecting rope, the second connecting rope and the third connecting rope. Limiting buckle mechanisms are arranged at the ends, away from the second connecting rope, of the first connecting rope and the third connecting rope; the assembling mechanism comprises a first connecting block and a second connecting block. Pedals are arranged on the opposite faces of the first connecting block and the opposite faces of the second connecting block. And the sleeve is matched with the threads, the sleeve is rotated by rotating the sleeve, so that the sleeve is matched with the threads of the clamping hook, the connecting position is protected and prevented from falling off, the mounting position is conveniently clamped and fixed, and then the device is safer and more stable to use.

The invention discloses an advanced support device of an intelligent mining loader, which belongs to the technical field of mining equipment and comprises a chassis assembly, a loader shell is arranged at the top of the chassis assembly, an electric telescopic rod is arranged at the top of the loader shell, and support fixing equipment is arranged at the top of the electric telescopic rod. A support top plate is arranged at the top of the support fixing equipment; a sliding groove is formed in the supporting top plate, a movable supporting auxiliary top plate is movably connected into the sliding groove, and first racks are fixedly connected to the two sides of the movable supporting auxiliary top plate. Therefore, the upper portion of the driving assembly can be covered by the movable supporting auxiliary top plate, personnel injury and equipment damage caused by falling of broken stones at the top of a mine hole when the excavating assembly works are avoided, and the equipment is safer to use.

The utility model relates to the technical field of pressure reduction adjusting devices, in particular to a pressure reduction adjusting device for a gas conveying pipeline, which comprises a gas conveying pipeline, the upper end face of the gas conveying pipeline is fixedly connected with a pressure reduction adjusting device main body through bolts and nuts, two top seats are mounted on the outer surface of the gas conveying pipeline, and the rear end faces of the two top seats are respectively clamped with an embedded plate. The two fixing seats are clamped to the two ends of the pressure reduction adjusting device through opposite movement of the two L-shaped threaded supporting plates, then the two positioning bolts are inserted into the fixing seats and the positioning grooves of the pressure reduction adjusting device, and therefore the pressure reduction adjusting device can be positioned again. Therefore, the stability of the pressure reduction adjusting device during installation can be improved, the phenomenon that the pressure reduction adjusting device is prone to loosening and falling off is avoided, and the pressure reduction adjusting device can be adaptively supported by the supporting sliding plate through the elastic force of the connecting spring.

The utility model discloses a special hinge for a ceramic tile stone invisible door, which comprises a supporting rod, an upper hinge component, a lower hinge component and a rotary pull rod, wherein the upper hinge component and the lower hinge component are arranged in mirror symmetry and comprise a hinge main arm, a hinge small arm and a base, and the rotary pull rod is only arranged on the upper hinge component or the lower hinge component. One end of the rotary pull rod is rotationally arranged between the middle point of the lower end of the small hinge arm and the hinge pin, and a through hole is formed in the other end of the rotary pull rod and sleeves a pull rod pin, away from the outer side of the pressure bearing, of the base to form a quadrangular structure capable of rotationally opening and closing around the fixed-point pressure bearing and the pin. The door opening and the decorative wall plate are made of the same material, the veneer is integrated, the overall effect is better, the rotary pull rod and the supporting rod act together, when a door is opened, after the movable frame leaves the door opening, under the action of the rotary pull rod, the movable frame translates towards the right outer side by a certain distance, a distance between the movable frame and a wall body is reserved, then the movable frame is rotated to be opened, and the wall body cannot be damaged.

This utility model relates to the field of feeding machine technology, and in particular to a blocking and rewinding mechanism for feeding coiled materials such as lithium battery aluminum foil. It includes a blocking terminal block that can swing up and down, a pulling steel wire rope that can drive the blocking terminal block to swing up and down, and a rewinding and rewinding control assembly that can rewind and release the pulling steel wire rope. The front end of the pulling steel wire rope is connected to one side of the blocking terminal block to drive the blocking terminal block to swing. The rewinding and rewinding control assembly includes a traction sleeve that allows the right end portion of the pulling steel wire rope to pass through and extends forward and backward, and can move back and forth. The rear end of the pulling steel wire rope is located behind the traction sleeve and is connected to an anti-rotation assembly to prevent the pulling steel wire rope from rotating during the rewinding and rewinding process. The anti-rotation assembly is supported behind the traction sleeve, making it more flexible and convenient to operate.

The utility model provides a split type silent caster, which relates to the technical field of silent casters, and comprises a silent caster, a left sleeve plate and a middle pressing plate, silent salient points are arranged on the rolling surface of the silent caster, a central shaft is sleeved at the center of the silent caster, the left sleeve plate is sleeved at the left part of the central shaft, the right sleeve plate is sleeved at the right part of the central shaft, and the middle pressing plate is sleeved at the right part of the central shaft. A middle pressing plate is mounted between the upper ends of the left sleeve plate and the right sleeve plate, an upper mounting plate is mounted at the upper end of the middle pressing plate, the center of the upper mounting plate and the center of the middle pressing plate are located on the same axis, outer fixing sleeves are twisted to the left end and the right end of the center shaft through threads, and the left sleeve plate, the right sleeve plate and the outer fixing sleeves are detachably connected with the center shaft. A middle groove is formed in the middle of the upper portion of the middle pressing plate, and an upper round hole is formed in the center of the middle groove. The split type structure is adopted, assembly or disassembly is convenient, parts can be flexibly replaced after local damage, the direction can be flexibly changed to any angle, and the split type LED lamp is more convenient and practical.

The utility model discloses a capacitor busbar insulation sealing assembly, which comprises a packaging shell for packaging a capacitor body, a sealing block and an insulation sleeve, the side surface of the packaging shell is provided with a lead-out hole for a busbar terminal of the capacitor body to penetrate out, the sealing block is embedded into the inner side of the packaging shell corresponding to the lead-out hole, and the insulation sleeve is arranged in the packaging shell. The sealing block is provided with a sealing opening for a busbar terminal of the capacitor body to pass through. And the insulating sleeve is of a U-shaped structure and is sleeved at one end, penetrating out of the packaging shell, of the busbar terminal of the capacitor body. When the capacitor is used, the capacitor body can be installed in the packaging shell in a sealed mode, and the sealing block is sleeved at the leading-out position of the busbar terminal and embedded into the inner side of the leading-out hole so that the leading-out position can keep good sealing performance. Meanwhile, the insulating sleeve is sleeved at one end, penetrating out of the packaging shell, of the busbar terminal of the capacitor body, so that the insulating effect of the adjacent busbar terminals can be ensured; and the use is safer and more stable.

The utility model discloses a machine room circuit collecting mechanism which comprises an installation bottom plate, four sets of collecting assemblies are arranged at the top of the installation bottom plate at equal intervals, each collecting assembly comprises a lower fastening block, the lower fastening blocks are fixedly installed at the top of the installation bottom plate at equal intervals, and upper fastening blocks are arranged at the tops of the lower fastening blocks. Wire grooves are formed in the sides, close to each other, of the upper fastening blocks and the lower fastening blocks, and fastening assemblies are arranged in the lower fastening blocks. According to the machine room circuit binding mechanism disclosed by the utility model, through the arrangement of the fastening assembly, when the cable is placed in the circular ring formed by the two wire slots, the threaded rod is rotated to push the abutting plate to move towards the cable until the abutting plate abuts against the cable, so that the fixation of the cable is facilitated, and the fixation of cables with different diameters is facilitated; the use is safer and firmer; and a plurality of groups of bundling assemblies are arranged, so that the later maintenance of each cable is facilitated.

This utility model discloses an IoT socket with anti-electric shock function, including a socket box and a protective component on its surface. The protective component is connected to a bending pressure plate and a linkage bar via a shaft seat. The linkage bar has a synchronous groove that engages with the sliding column of the movable column. A torsion handle, a spring, and a connecting block are sequentially installed on the top of the movable column, while a locking block is provided at the bottom, which is linked with the lifting groove, positioning hole, and locking groove of the column. After the plug is inserted, rotating and pressing the torsion handle causes the movable column to move downward. The bending pressure plate rotates and presses the two sides of the plug. After the spring contracts and stores energy, the locking block engages with the locking groove to complete the fixation. When the plug is abnormally dislodged, the bending pressure plate flips outward, causing the linkage bar to rotate. This causes the movable column to move upward through the synchronous groove, and the spring limits the plug's disengagement range and automatically resets it, preventing a partial leak or partial connection. This device effectively prevents children from touching the plug gaps, significantly improving electric shock safety; it is also compatible with plugs of different heights, making it highly versatile and practical.

The utility model discloses an energy-saving double-tube LED lamp tube convenient for heat dissipation, which comprises a mounting lamp bracket, an aluminum lamp holder is fixedly connected to the inner wall of the mounting lamp bracket, a double-lamp LED lamp tube is mounted in the aluminum lamp holder, a diffusion powder lampshade is fixedly connected to the bottom surface of the mounting lamp bracket, and two first heat dissipation grooves are formed in the upper surface of the mounting lamp bracket. The inner bottom wall of each first heat dissipation groove is provided with a set of first heat dissipation openings. According to the double-lamp LED lamp tube, through the arrangement of the aluminum mounting lamp bracket, the heat dissipation fins, the aluminum lamp holder, the first heat dissipation opening, the ventilation opening and the diffusion powder lampshade, heat dissipated when the double-lamp LED lamp tube works can be absorbed, conducted and dissipated, the light transmittance and the heat dissipation performance of the double-lamp LED lamp tube are improved through the diffusion powder lampshade, effective heat dissipation of the double-lamp LED lamp tube is facilitated, and the service life of the double-lamp LED lamp tube is prolonged. The LED lamp tube is simple in structure and convenient to use safely and stably, low-voltage stable power supply of the double-lamp LED lamp tube can be achieved through the arranged constant-voltage LED driving power source, and energy conservation and stable use of the LED lamp are facilitated.

The utility model discloses a hydraulic power station valve block which comprises a valve block body, one or more sets of inner hole pipelines are arranged on the valve block body, anti-leakage assemblies are arranged at the two ends of each inner hole pipeline respectively, each anti-leakage assembly comprises an internal thread connecting end, a two-way sealing sleeve and an external thread connecting end, the internal thread connecting ends are arranged at the two ends of each inner hole pipeline, and the two-way sealing sleeves are arranged at the two ends of each inner hole pipeline. The bidirectional sealing sleeve comprises a threaded sleeve and elastic sealing sleeves, threads are arranged on the outer side and the inner wall of the threaded sleeve, the elastic sealing sleeves are clamped at the two ends of the threaded sleeve, one end of the bidirectional sealing sleeve is embedded into the inner sealing groove, and one end of the external thread connecting end is in threaded connection with the bidirectional sealing sleeve. A regular hexagonal connector is arranged at the end of the external thread connecting end, cooling assemblies are further arranged at the four corners of the valve block body, each cooling assembly comprises one or more sets of cooling pipelines, and the cooling pipelines are perpendicular to the inner hole pipelines. According to the hydraulic power station valve block, the cooling effect and the anti-leakage effect of the valve block can be remarkably improved.

The utility model relates to the technical field of down leads, in particular to a lightning protection special down lead installation combined clamp which comprises a down lead, a first fixing seat, a second fixing seat, hinges, a clamping plate, a fixing structure, a wiring terminal, a supporting plate and a pin shaft. The left side of the first fixing seat is fixedly connected with two first fixing plates, the left side of the second fixing seat is fixedly connected with two second fixing plates, the first fixing plates are rotationally connected with rotating rods, the tops of the rotating rods are fixedly connected with threaded rods, the threaded rods are in threaded connection with grips, and the front sides of the first fixing seat are fixedly connected with wiring terminals. The front side of the second fixing seat is fixedly connected with a supporting plate, and the left and right ends of the wiring terminal and the supporting plate are slidably connected with pin shafts. The wiring terminal is provided with the fixing structure, the first fixing seat and the second fixing seat can be rapidly installed, and the wiring terminal is more convenient and rapid to install.

The utility model discloses a capping type multi-face splicing protective net piece matched with an external stair of a building, which comprises a stair body, a stair guardrail is arranged at the edge position of the stair body, a first protective mechanism is arranged at the position, close to the stair guardrail, of the stair body, and the first protective mechanism comprises a first protective net body and a second protective net body. The first protective net body and the second protective net body are connected through a connecting mechanism, and second protective mechanisms are arranged at the tops of the first protective net body and the second protective net body. The first protective net body and the second protective net body are mounted by means of the first bolts and the second bolts, so that the protective net is safe and stable in use, and the protective effect is improved; and the length of the first protective net body and the length of the second protective net body are adjustable, so that the first protective net body and the second protective net body can adapt to installation of stair bodies with different lengths, and the use performance of emergency rapid adaptation of the first protective net body and the second protective net body is improved.

The utility model discloses an electrocardiograph lead wire collecting device which comprises a machine body and a connecting box, the lower surface of the machine body is in bolted connection with a base, the right side of the machine body is fixedly connected with an output wire, and the tail end of the output wire is arranged in the connecting box; the wire is arranged in the connecting box, and the wire is a part of the output wire; and a motor is fixedly connected to the inner wall of the take-up box. According to the electrocardiograph lead wire collecting device, in the using process, when wires need to be collected, a motor in the wire collecting box rotates anticlockwise, the wires on the left side and the right side are pulled back at the moment, in other words, when the wires do not need to be used, the wires can well stay in a cavity in the wire collecting box, and when the wires need to be used, the wires can be conveniently taken out. A worker can enable the motor to rotate clockwise according to actual conditions, and meanwhile, the worker can pull the electrode clamp, so that wires are not stacked in the cavity, and the use of the wires is facilitated.

The invention discloses a window breaker, comprising a shell, characterized in that a striker for breaking a window is movably arranged inside one end of the shell, and a mechanical force-storing ejection mechanism for driving the striker to be explosively ejected outward after accumulating force is arranged inside the shell. The mechanical force-storing ejection mechanism is used to provide a boosting force to improve the window breaking effect by arranging a mechanical force-storing ejection mechanism inside the shell for driving the striker to be explosively ejected outward after accumulating force, and the mechanical force-storing ejection mechanism is used to provide a boosting force to improve the window breaking effect, and the structure is simple, safe and stable to use, and has good versatility.

The utility model provides a cantilever type truss mud scraper, which relates to the technical field of mud scrapers, and comprises a support column and a central shaft, the lower part of the support column is provided with a base, the base is fixed at the left part of the outer side surface of a sewage pool, the upper part of the support column is provided with a Z-axis linear guide rail, and the Z-axis linear guide rail is movably provided with a cantilever; a second sliding block is movably arranged on the cantilever, a hanging bracket is arranged below the second sliding block, a rotating shaft is arranged in the first motor in a sleeved mode, the lower end of the rotating shaft is fixed to a center shaft, a center cylinder is arranged on the lower portion of the center shaft, trusses are arranged on the left side and the right side of the center cylinder correspondingly, and multiple sets of lower mud scraping structures are installed on the lower sides of the trusses; and a side mud scraping structure is mounted at the outer end of the truss. The sludge scraping device is convenient and flexible to move and move, the sludge scraping position is convenient to adjust, the sludge scraping structure is convenient to move out for cleaning or overhauling, sludge on the inner side wall and the inner bottom surface of the sewage tank can be scraped at the same time, and sludge scraping is cleaner and more thorough.

The utility model discloses an auxiliary device for mounting a prefabricated cement board. Comprising a base; a cavity is formed in the base, and a height adjusting structure is arranged on the periphery of the base; a hydraulic structure is arranged in the cavity of the base; the hydraulic structure comprises a hydraulic cylinder and an oil tank; the hydraulic cylinder is located on one side of the cavity of the base, and the upper end of a telescopic rod of the hydraulic cylinder extends out of the top face of the base and is used for being supported below a preset cement board. The oil tank is positioned on the other side of the cavity of the base; an operation box is arranged at the top of the base and above the oil tank; and the telescopic rod is driven to move up and down through the operation rod above the operation box, so that the height of the prefabricated cement board is adjusted.

The application discloses a kind of distributed power energy storage devices, it is related to secondary battery technical field, including box, several hollow supports are evenly installed equidistantly in the box, several partition seats are evenly installed equidistantly in the side end surface of hollow support, cabinet is slidably installed in the top of partition seat, limit valve is embedded and installed in the bottom of cabinet side end surface, the end of limit valve is installed with spout, sliding plate is slidably installed in the inside of partition seat, the heat emitted in the process of the present application is driving force, forcibly realizes internal and external interactive heat exchange and internal circulation heat exchange, can effectively remove the heat generated in the process of device operation in time, realize the recycling of energy conversion and utilization, while realizing the efficiency of the base, improve the synchronism and high efficiency of heat exchange work, while prolonging the effective service life of battery, improve the popularization of device, flexible meet the multiple needs of user side cost reduction, power grid side stability and energy side low carbon.

The utility model discloses a cable separating and taking machine for a cable reel, and belongs to the technical field of cable separating and taking equipment, the cable separating and taking machine comprises a shell and the cable reel, two first sliding rails are welded at the bottom of the inner wall of the shell, first sliding blocks are connected in the two first sliding rails in a sliding mode, shear type frames are movably connected to the two first sliding blocks, and the shear type frames are connected with the cable reel. Second sliding blocks are movably connected to one ends of the two shear type frames, second sliding rails are slidably connected to the two second sliding blocks, and a first supporting plate is welded to the two second sliding rails; through the combined action of a first electric push rod, shear-type frames, a first sliding rail, a second sliding rail, a connecting rod and the like, the first electric push rod works to enable the two shear-type frames to deform, meanwhile, a first sliding block and a second sliding block slide in the first sliding rail or the second sliding rail correspondingly, a first supporting plate can be lifted, and after long-time use, the first supporting plate is not prone to falling off. And the condition of thread slipping is avoided, and the use is relatively stable and safe.

The utility model discloses a blockage control structure of a heat storage element of an air preheater, which comprises a preheater shell, a heat storage element group is arranged in the preheater shell, an outlet frame is fixedly embedded on the right side surface of the heat storage element, two air inlets are arranged on the left side surface of the preheater shell, and the air inlets are communicated with the outlet frame. The left side face of the preheater shell is fixedly connected with conical air inlet frames, each conical air inlet frame is located on the left side of the air inlet, the left side face of each conical air inlet frame is fixedly communicated with an air inlet cylinder, and the inner wall of each air inlet cylinder is fixedly connected with an air inlet spiral piece. According to the device, through the arrangement of the air inlet cylinder, the air inlet spiral piece, the wave plate and the dust filtering net frame, smoke entering the preheater can be blocked in a spiral and wave mode, dust particles in the smoke can fall off, dust is filtered and removed through the dust filtering net frame, the cleanliness of the smoke is improved, and the service life of the smoke is prolonged. The problem that a heat storage element of the preheater is prone to being blocked is effectively solved, and safe and stable use of the air preheater is facilitated.

The utility model discloses a clamping device for a plastic toy tray, which comprises a fixed frame, a clamping assembly and a positioning assembly, the clamping assembly and the positioning assembly are both arranged on the fixed frame, the clamping assembly comprises a left clamping assembly and a right clamping assembly which are oppositely arranged, the left side of the tray is clamped and fixed through the left clamping assembly, and the right side of the tray is clamped and fixed through the right clamping assembly. The right side of the tray is clamped and fixed through the right clamping assembly, the left clamping assembly comprises a left clamping device and a left deviation rectifying device, the right clamping assembly comprises a right clamping device and a right deviation rectifying device, a tray clamping area is formed between the left clamping device and the right clamping device, the left deviation rectifying device is arranged on the left clamping device, and the right deviation rectifying device is arranged on the right clamping device. The plastic toy tray clamping device can rapidly clamp a plastic toy tray, can prevent the left side and the right side of the tray clamped and fixed in the tray clamping area from deviating, and is convenient to use, stable in clamping, wide in applicability and high in practicability.

The utility model relates to the technical field of containers, in particular to a container hinge plate connecting structure with a buffering function, which comprises a hinge plate component, hinge lugs and a buffering component, the hinge lugs are arranged on two sides of the hinge plate component, hinge pins are arranged between the hinge plate component and the hinge lugs, and the buffering component is arranged between the hinge plate component and the hinge lugs. The hinge pin penetrates through the hinge plate assembly and the hinge lugs, and a buffer assembly is arranged between the hinge lugs and located at the bottom of the hinge plate assembly. The buffer assembly comprises a fixed seat, a sliding seat is connected in the fixed seat in a sleeved mode, a buffer spring is installed on the portion, located on the inner side of the sliding seat, in the fixed seat through a spring seat, and opposite magnets are arranged in the fixed seat and at the bottom of the sliding seat. The auxiliary buffering mechanism is additionally arranged, the closing speed of the box door is reduced in a supporting and buffering mode, the impact force between the box door and the door body is reduced, and therefore the using effect is improved.

The utility model provides a rapid positioning device suitable for irregular bent parts, and belongs to the technical field of machining. According to the technical scheme, the rapid positioning device suitable for the irregular bent part comprises a bottom plate arranged at the bottom of one side of a tool platform, two parallel side plates are arranged on the bottom plate, a rotating shaft is arranged between the two side plates, the rotating shaft is sleeved with a positioning frame, and the positioning frame can rotate along with the rotating shaft. When the positioning frame is in the first position state, an included angle is formed between the positioning frame and the tool platform, and a plurality of control panels are arranged on the upper side of the end, away from the rotating shaft, of the positioning frame. The positioning device has the beneficial effects that the positioning device is simpler and more convenient during positioning and overturning operation, the purpose of ensuring the key angle and the key size during point splicing can be achieved, the application range is wide, and the point splicing is more stable and safer.