685results about How to "Easy to fold" patented technology

The invention relates to the technical field of pipe inner wall polishing, in particular to a plastic pipe inner wall polishing device. Comprising a sliding ring slidably arranged on a mounting cylinder, the right side of the sliding ring is connected with an air inflation bag, the right end of the air inflation bag is connected with the mounting cylinder, a fixedly-arranged second electric push rod and a slidably-arranged air pump are further fixedly mounted on the mounting cylinder, and the telescopic end of the second electric push rod is connected with the sliding ring. And a connecting pipe is communicated between an air outlet of the air pump and the inflatable bag. The movable part, the telescopic polishing block and the concentration mechanism are arranged and jointly assist to achieve adaptive adjustment of different pipe diameters, in addition, the inwards-concave inflatable bag is designed, so that the pipeline is adjusted and attached in a matched mode, abrasive dust is efficiently pushed out, the flexibility and adaptability of the equipment are enhanced, and the service life of the equipment is prolonged. And cleaning and polishing are integrated, so that the device can be operated more easily, and the overall using effect and working efficiency of the device are improved.

The invention relates to the technical field of medical instruments, in particular to a nerve stimulation electrode based on a shape memory material. The nerve stimulation electrode comprises a flexible packaging electrode body and a substrate crease layer arranged on the surface of the flexible packaging electrode body. The material of the substrate crease layer comprises a shape memory polymer and a nano ferromagnetic material; the substrate crease layer comprises a first bending part which is used for enabling the flexible packaging electrode body to be folded along the length direction of the flexible packaging electrode body. The nerve stimulation electrode can solve the problems that an existing nerve stimulation electrode is hard in appearance, large in overall mass, poor in flexibility and complex in implantation operation.

The utility model discloses a display board convenient to fold, which comprises boards positioned on the left side and the right side of a transmission rod. The mounting plate is welded to one end of the plate at the innermost end, and the mounting plate slides in the fixing rod at equal angles; and the fixing frame is welded to the lower end of the fixing rod, a folding mechanism is arranged between the transmission rod and the plate, the plate can be fixed, and meanwhile the plate can be folded conveniently. According to the display board convenient to fold, the display board does not need to be fixed by other workpieces in the folding and displaying process, the display board does not loosen, meanwhile, the display board can be adjusted according to the number of displayed objects, the display board is convenient to fold, the board body and the mounting board slide on the fixing rods, and the display board is convenient to fold. Therefore, the plates can be located in the fixing frame, the plates with the corresponding number can be moved upwards according to objects needing to be displayed, and other plates can be located in the fixing frame.

The utility model discloses a novel numerical control machine tool guide rail protective cover which comprises a machine tool body, a first protective cover is arranged above the machine tool body, a second protective cover is arranged in the first protective cover, a third protective cover is arranged in the second protective cover, the bottom end of each oil injection opening is communicated with a sliding way, and the bottom end of each oil injection opening is communicated with a sliding way. An oil storage tank is fixedly connected to the upper surface of the fixing plate, a connecting rod is arranged in the oil storage tank, a check block is fixedly connected to the bottom end of the connecting rod, a connecting block is fixedly connected to the top end of the connecting rod, symmetrical springs are fixedly connected to the bottom face of the connecting block, and a second clamping groove is formed in the upper surface of the oil storage tank. Through the arrangement of the first protective cover, the second protective cover and the third protective cover, under the sliding connection of the sliding way, a worker can conveniently fold and operate the device, and under the cooperation of the oil storage tank and the oil injection port, the lubricating effect on the sliding block in the sliding way and the sliding connection position is achieved.

The utility model relates to an electric wheelchair and a wheelchair armrest mechanism. According to the wheelchair, the front wheel support and the rear wheel support are arranged in the crossed mode and rotationally connected, the seat can ascend or descend by controlling stretching or shortening of the driving piece, and therefore the height of the wheelchair can be adjusted according to the requirements of different crowds, and when the seat is located at the highest position, the wheelchair is folded; due to the fact that the front wheel assembly and the rear wheel assembly are not separated from the ground, the wheelchair can stand without additionally arranging anti-tilting wheels and the like, the wheelchair does not need to be erected manually, and folding and moving are very convenient. Meanwhile, the wheelchair armrest mechanism is simple in structure and convenient to adjust, and the unlocking piece can be controlled according to requirements to lock or unlock the locking piece, so that the position of the armrest is locked or unlocked, and the position of the armrest is adjusted according to requirements.

The utility model belongs to the technical field of sunhats, and discloses a folding sunhat. The safety helmet is mainly technically characterized by comprising a helmet top, helmet cloth and a fixing bandage, a supporting ring is arranged on the periphery of the helmet cloth and comprises at least two sector-ring-shaped sub-rings, a positioning and locking mechanism is arranged at the joint of every two adjacent sub-rings, each positioning and locking mechanism comprises a connecting body, U-shaped inserting grooves are formed in the two ends of each connecting body, and the U-shaped inserting grooves are connected with the helmet top. A U-shaped slot is formed in the cap top, the axial direction of the U-shaped slot is consistent with the axial direction of the cap top, side clamping grooves are formed in the clamping plates on the two sides of the U-shaped slot, a bottom clamping groove is formed in the bottom of the U-shaped slot, plugs matched with the U-shaped slot are arranged at the two ends of the branch ring, side protrusions are arranged at the positions, corresponding to the side clamping grooves, of the two sides of each plug, and the side protrusions are matched with the bottom clamping groove. The top of the plug is provided with a top protrusion corresponding to the bottom clamping groove, the side protrusion is inserted into the side clamping groove, the sunshade area is large, the structure is simple, carrying and using are convenient, cost is low, and damage is not prone to occurring.

The invention relates to the field of baby strollers, and particularly discloses a linkage folding structure of a baby stroller, which comprises a push handle joint, a front foot joint and a rear foot joint which are coaxially arranged, a linkage piece is arranged between the push handle joint and the front foot joint, the push handle joint and the front foot joint synchronously rotate through the linkage piece, and the rotation directions are opposite. The push handle joint and the front foot joint rotate relative to the rear foot joint, a locking structure is arranged on one side of the push handle joint and comprises a locking rod, first locking grooves are formed in the push handle joint and the front foot joint, a second locking groove is formed in the rear foot joint, and the locking rod sequentially penetrates through the two first locking grooves and then extends into the second locking groove of the rear foot joint. According to the folding bicycle frame, the appearance is simple, the structure is compact, transmission force loss is small, folding is easy, the joints are arranged in a stacked mode, the assembling technology is greatly simplified, the locking effect is good, and the stability and strength of the bicycle frame are improved.

The rotary ejection type unmanned aerial vehicle carrying vehicle comprises a vehicle body, and a shaft rod is fixed to the top of the vehicle body; the lifting plate is provided with a through hole, a sleeve is fixed above the lifting plate, and the shaft rod is in sliding fit with the through hole and the sleeve; the lifting plate is connected with the top of the vehicle body through springs; the inner ring of the upper ball bearing is fixed at the upper end of the shaft rod, and the inner ring of the lower ball bearing is fixed on the sleeve; each folding frame comprises a long rod and a short rod, a launcher and a fixing device capable of installing the unmanned aerial vehicle are fixed to the upper end of the long rod of one folding frame, a balancing weight is fixed to the upper end of the long rod of the other folding frame, and therefore the function that the carrying vehicle conducts rotary casting on the unmanned aerial vehicle is achieved.

The folding and unfolding support is characterized in that the folding and unfolding support comprises two oppositely-arranged supporting frame bodies, two oppositely-arranged bearing frame bodies, a connecting piece and a connecting rod assembly, the supporting frame bodies and the bearing frame bodies are hinged to the connecting piece, and the connecting rod assembly is hinged to the corresponding supporting frame bodies and bearing frame bodies; the folding device further comprises a first folding piece and a second folding piece, the first folding piece and the second folding piece are hinged to the corresponding supporting frame bodies respectively, and the first folding piece and the second folding piece are hinged to each other and can be fixed through a buckle structure to avoid relative rotation. According to the structure, operation is easy, one-key folding can be achieved, folding is convenient, and therefore convenience is greatly improved for a user, and the competitiveness of a product is improved.

The lifting platform comprises a platform body, a plurality of supporting legs are fixed to the bottom face of the platform body, the lower ends of the supporting legs are connected with a base in an inserted mode, an operation table is stacked on the platform body, a side fence, a rear fence and a front fence are arranged on the three continuous edges of the platform body respectively, and an opening for operators to go in and out is reserved between the side fence and the front fence. A foldable ladder stand is arranged on the side surface of the platform at the opening, and handrails are mounted on two sides of the ladder stand; and the platform side without the fence is hinged with an expansion platform. The overall height of the platform can be adjusted in a large range through the telescopic supporting legs, then adjustment can be conducted in a small range through the first lifting plate and the second lifting plate, the operation range can be adjusted by expanding the platform, and therefore the lifting type blowout preventer and the lifting type blowout preventer with the heights changed can be operated, and the application range is wide.

The utility model discloses a multifunctional fishing camp chair, which is a foldable seat consisting of a central shaft of a camp chair body, an inner frame hinged with the central shaft, an outer frame and a cushion formed by the top surfaces of the frames. A backrest frame is integrally formed at the top end of the outer frame; supporting rods are transversely mounted on the inner sides of the lower ends of the inner frame and the outer frame; an expansion frame is mounted on the outer frame; the folding stool has the advantages that fishing tools can be detachably mounted, can be conveniently folded into a whole, are convenient to carry and can be conveniently mounted and dismounted according to needs, multifunctional application is achieved, and the problems that traditional tools such as fishing rods, fish protection bags and lug plates are mounted on supporting legs of the folding stool and are inconvenient to adjust, and the stability of the supporting legs of the folding stool is reduced are solved; by additionally arranging the expansion frame, the stability can be improved, operation is flexible, sitting feeling is comfortable, and fishing tools are convenient to adjust and use; the device is simple in structure, convenient to operate and worthy of popularization.

The utility model provides a foldable surveying and mapping marker post, belongs to the technical field of engineering surveying and mapping, and aims to solve the problems that the existing surveying and mapping marker post is fixed by using a spine structure, is not stable enough to fix and support on cement, asphalt and other planes due to the need of being matched with a support, and is easy to topple over in a soft soil region to influence the positioning accuracy. Comprising a telescopic marker post body. The fixed base is connected to the tail end of the telescopic marker post main body through threads; the three sets of supporting plates are arranged, and the three sets of supporting plates are hinged to the bottom of the fixed base; the three sets of connecting rods are arranged, and the three sets of connecting rods are hinged to the upper portion of the fixed base; the storage cylinder is welded in the three groups of supporting plates; the supporting and folding assembly is arranged on the outer side of the fixed base; and the auxiliary fixing assembly is arranged in the storage cylinder. The support device has the advantages of being stable in supporting, capable of keeping vertical, convenient to carry and the like.

The invention discloses a foldable handheld hair care device which comprises a hair care device body, the hair care device body is divided into a handle, a connecting part and an air blowing barrel, the air blowing barrel freely rotates on the handle through the connecting part, and when the hair care device body is in an open state, the axis of the air blowing barrel and the axis of the handle basically coincide to form a straight line shape; when the hair care device is in a folded state, an included angle is formed between the hair dryer and the handle. The air comb is reasonable in structural design, the fixed part and the rotating part are arranged between the handle and the air blowing barrel, the rotating part rotates on the two sides of the fixed part, the air blowing barrel is further driven to rotate on the handle, inconvenience and labor waste caused by the fact that the air blowing barrel of the air comb cannot rotate in the using process are avoided, and meanwhile the air comb is convenient to use. The folding of the blowing cylinder improves the storage efficiency of the air comb, and improves the use experience of a user.

The utility model discloses an IBC (intermediate bulk container) inner cavity cleaning device in the field of conductive film production, which comprises a rack and a cleaning mechanism, the cleaning mechanism comprises a driving part and a cleaning shaft which are sequentially arranged from top to bottom, the driving part is arranged on the rack, and the driving end of the driving part is connected with the top of the cleaning shaft, so that the cleaning shaft rotates around the axis of the cleaning shaft; a plurality of storage grooves are formed in the cleaning shaft in the axial direction of the cleaning shaft, a cleaning rod is arranged in each storage groove, the top of each cleaning rod is hinged to the cleaning shaft, and the bottom of each cleaning rod can be folded in the direction close to the axis of the cleaning shaft. The cleaning device solves the problems that an existing cleaning device cannot effectively clean the inner wall of the IBC ton barrel and is low in cleaning efficiency, the stirring radius and the cleaning area of the cleaning shaft can be increased, the inner wall of the IBC ton barrel can be effectively cleaned, the cleaning effect and the cleaning efficiency of the IBC ton barrel are improved, the cleaning rod can be conveniently folded, and the cleaning device is convenient to use. And the operation convenience is improved.

The stroller frame assembly comprises a main stroller frame, the main stroller frame comprises a hand push rod set and two rear foot rods, the hand push rod set comprises two supporting rods, the supporting rod on each side comprises a first rod section and a second rod section, the first end of the first rod section is rotatably connected with the rear foot rod on the same side, and the second end of the first rod section is rotatably connected with the rear foot rod on the same side; the first end of the second rod section is rotatably connected with the second end of the first rod section, and the first rod section on each side is movably provided with a sliding piece; the left and right ends of the handrail assembly are connected to the sliding pieces on the two sides respectively; the rear end of the seat assembly is connected to the bottoms of the supporting rods on the two sides. The backrest assembly comprises a first backrest part and a second backrest part, the first end of the first backrest part is connected to the rear end of the seat assembly, and the first end of the second backrest part is rotatably connected to the second end of the first backrest part; in the folding state, the second backrest part is folded towards the front side relative to the first backrest part, the first rod section is close to the rear foot rod, and the second rod section is folded towards the side close to the armrest assembly relative to the first rod section.

The utility model provides a composite material airstairs with bidirectional self-locking performance, which comprises an upper half section of ladder assembly, and the top end of the upper half section of ladder assembly is connected with a friction disc assembly through a top bending section; the bottom end of the upper half section ladder frame is provided with a lower half section ladder frame through a folding mechanism; a bidirectional self-locking mechanism for locking an unfolded or folded state is mounted on the folding mechanism in a matched manner; pedals are fixedly arranged between the upper half section ladder frame and the lower half section ladder frame and are made of composite materials; and the bottom end of the lower half section of ladder frame is connected with an anti-skid supporting leg assembly. The airstairs are of a folding structure and can be conveniently folded after being used, so that the occupied space is reduced; the main body material is made of a composite material, so that the weight is effectively reduced; and meanwhile, the spring is adopted to drive the double-shaft self-locking mechanism, so that the airstairs can be quickly self-locked in an unfolded state and a folded state, and the working efficiency is improved.

The invention relates to the field of aircrafts, in particular to a portable single-person low-altitude vector jet aircraft with a folding wing structure, the portable single-person low-altitude vector jet aircraft comprises a rack part, a power part and a load part, the power part is arranged below the rack part, and the load part is arranged below the power part; according to the portable single-person low-altitude vector jet aircraft with the folding wing structure, through the design of the telescopic framework of a multi-connecting-rod structure, the aircraft can be easily folded when not used, the occupied space is small, carrying and storage are convenient, and the problems that a traditional single-person aircraft is large in size and difficult to carry are solved; the applicability and convenience of the aircraft are improved; meanwhile, the structural strength of the wings in the unfolded state is ensured through the multi-point supporting design of the telescopic framework, the stability and safety of the aircraft are improved, the air resistance of the aircraft is reduced through the design of the wing skin, the protective cover, the conical cover, the wind tunnel and the fairing, the aerodynamic performance is effectively improved, and the aircraft is more efficient in the flight process.

The invention discloses a folding seat for an electric leisure vehicle for the elderly, including a backrest frame, a cushion frame, and a seat folding device. The seat folding device includes left and right main brackets, an upper bracket, left and right lower brackets, and a shock absorber. The two ends of the left and right main brackets are hinged on the front supports on both sides of the cushion frame and the frame. The upper parts of the left and right lower brackets are rotatably connected to the upper bracket, and the lower parts are hinged on the rear supports on both sides of the frame. The shock absorber is hinged between the cushion frame and the upper bracket. The left and right main brackets are provided with inner lock holes and track grooves respectively. The central tube of the upper bracket is provided with a spring and spring pins on both sides of the spring. The spring pins are provided with lock column sections that match the inner lock holes and guide column sections that match the track grooves respectively. The guide column sections extend out of the track grooves and are connected to the locking mechanism. After adopting the above structure, it has the advantages of reasonable structural design, simple operation, fast and convenient folding, reliable connection, and small folding volume.

The utility model relates to the technical field of walking aids, in particular to a wheel type folding walking aid which comprises a folding frame, a handle, a front wheel, a left rear wheel and a right rear wheel. The folding frame comprises left and right upright posts, left and right upright post sliding sleeves and a front wheel connecting rod group; shear fork folding mechanisms are arranged among the left stand column, the left stand column sliding sleeve and the right stand column, among the right stand column sliding sleeve, among the left stand column, the left stand column sliding sleeve and the front wheel connecting rod group, among the right stand column, the right stand column sliding sleeve and the front wheel connecting rod group, among the left stand column, the left stand column sliding sleeve and the left rear wheel, and among the right stand column, the right stand column sliding sleeve and the right rear wheel; locking mechanisms are further arranged between the left stand column and the right stand column and the left stand column sliding sleeve and the right stand column sliding sleeve. The folding and unfolding device is reasonable in structure, convenient to fold and unfold, high in structural stability after being unfolded, stable in walking, small in size after being folded, small in occupied space, in an upright state, stable in placement and free of toppling over, secondary folding or independent disassembly of part of parts is not needed during folding, and great convenience is brought to a user.

The present invention relates to the field of screening, and specifically provides a multi-stage ore screening device, which aims to solve the problem of reduced filtering efficiency and poor screening effect caused by filter blockage in current ore screening devices. The multi-stage ore screening device of the present invention includes a device housing and a reset component, a bending component, and a first filter plate group and a second filter plate group arranged up and down connected to the device housing. The device housing is formed with a feed chamber and a plurality of screening chambers connected to the feed chamber. The reset component can provide a pulling force to straighten the first filter plate group and the second filter plate group. The first filter plate group and the second filter plate group are provided with a bending component on their sides. The bending component can overcome the pulling force provided by the reset component to the first filter plate group or the second filter plate group and fold the two adjacent first filter plates or the second filter plates to one side, so as to clean the filter plates by beating and vibrating, avoid clogging the filter holes with ores, and ensure the screening effect.

The invention relates to the field of photovoltaic structures, and discloses a foldable photovoltaic panel mechanism which comprises a fixed plate, photovoltaic panel assemblies, air cylinders, photovoltaic panel assembly chains, rotating rods, supporting rods and connecting rods, when the foldable photovoltaic panel mechanism is used, piston rods of all the air cylinders contract to drive the photovoltaic panel assembly chains to be horizontally placed in a row on sunny days, and photovoltaic power generation is carried out; in extreme weather or when cleaning is needed, as rotating rods are hinged to the two ends of piston rods of air cylinders, the piston rods drive the ends, hinged to the piston rods, of the rotating rods to face upwards when stretching, and supporting rods are hinged to the tail ends of the rotating rods, when all the piston rods of the air cylinders stretch, the photovoltaic panel assembly chains at the ends, away from the cleaning assembly, of the photovoltaic panel assembly chains are gradually folded and curled upwards; at the moment, the smooth surface of the photovoltaic panel assembly is located in the inner wall of the circle formed by the photovoltaic panel assembly chains. The photovoltaic panel assembly has the advantages and effects of being convenient to fold, preventing the photovoltaic panel assembly from being damaged by extreme weather, protecting the photovoltaic panel and prolonging the service life of the photovoltaic panel.

The utility model discloses a foldable portable shoulder back massager, including casing, reference rod, vibratory massage mechanism, elastic bandage, hook, limit mechanism and control panel, the number of casing is two, the reference rod is arranged between the two casing, the side face of each casing is fixed with a sleeve, each sleeve is rotatingly connected to the reference rod, the limit mechanism is fixed on the reference rod, and the limit mechanism is fixed on the reference rod. Each sleeve is provided with a limiting mechanism penetrating through the reference rod, each machine shell is internally provided with a vibration massage mechanism extending to the outside of the machine shell, each machine shell is provided with an elastic bandage, the bottom of each elastic bandage is fixedly provided with a hanging buckle, and the bottom of each machine shell is provided with a hook used for hanging the hanging buckle. The folding and carrying device is convenient to fold, convenient to reduce the size and convenient to move and carry.

The invention relates to the technical field of children tools, and provides a foldable children bed. The foldable child bed can comprise an upper corner component, an upper cross rod, a lower corner component, a stand column, a locking mechanism, a lower cross rod and a connecting rod. The locking mechanism comprises a shell and a locking rod, the shell comprises a first surface deviating from the upper fence and a second surface facing the upper fence, a guide channel is defined in the shell, the guide channel extends in the direction from the first surface to the second surface, and the guide channel penetrates through the first surface to form a first opening; the locking rod comprises a first rod section and a second rod section which are connected, the first rod section slidably extends into the guide channel from the first opening, and the second rod section is located outside the first surface. The locking rod comprises a first position and a second position, when the locking rod is located at the first position, the foldable child bed is in a use state, and when the locking rod is located at the second position, the foldable child bed is in a folded state. The foldable child bed provided by the embodiment of the invention is simple and labor-saving to fold and unfold.

The invention belongs to the technical field of down feather recovery, and discloses a down feather recovery method, a down jacket and a folding method of the down jacket. According to the down recovery method provided by the invention, the compressed down product is cut, the down in the compressed state needs to be stretched to the fluffy state for a certain time, and the down mainly escapes in the fluffy state, so that the escaping of the down in the cutting process can be reduced, and the loss and waste of the down can be reduced. According to the down jacket provided by the invention, at least parts of all the down filling cavities are transversely arranged, so that all the down filling cavities of the down jacket can be folded to the same cutting line more conveniently, subsequent cutting is more convenient, and then the down recycling efficiency can be improved. By means of the down jacket folding method, the down jacket can be folded into regular blocks, and carrying and storage are more convenient. In addition, all down filling cavities of the down jacket can be folded to the same cutting line by folding the down jacket according to the folding method, and subsequent cutting is more convenient.

The present invention provides a foldable sun room and a folding method thereof, comprising an outer box, columns, doors, folding windows, a top, a floor, a support rod and a foldable wall, wherein the columns are four and are respectively arranged at the four corners inside the outer box and fixed by bolts; the door is installed on the foldable wall on the A facade side; the folding windows are arranged in multiple places and are respectively installed on the foldable walls on the A facade, the B facade, the C facade and the D facade; the top is arranged on the top of the columns and the foldable wall; the support rod is arranged inside the outer box; and the floor is movably connected to the outer box. The door, folding window, top, floor and foldable wall are all designed in a foldable form. After the sun room is opened, the hardware facilities are complete, and there is no need to install doors, windows, floors, etc. It can be used after installation is completed, and it is easy to fold, and the overall area of ​​the sun room is reduced, which is convenient for transportation and handling.

The invention discloses a folding type rotary cultivator and a folding mechanism and a connector thereof. The folding type rotary cultivator comprises a cross beam; the main reduction gearbox is fixedly installed on the cross beam, and the power input end of the main reduction gearbox is connected with a power output shaft of a tractor engine; the two first rotary tillage cutter shafts are located on the two sides of the main reduction gearbox respectively and connected with the power output end of the main reduction gearbox at the same time; the two suspension beams are arranged at the two ends of the cross beam respectively; the two auxiliary reduction gearboxes are fixedly mounted on the two suspension beams in a one-to-one correspondence manner; the two transmission mechanisms and the two auxiliary reduction gearboxes are arranged in a one-to-one correspondence manner; one end of the transmission mechanism is connected with the power input end of the main reduction gearbox, and the other end is selectively connected with the input end of the corresponding auxiliary reduction gearbox; the two second rotary tillage cutter shafts are arranged below the two suspension beams respectively, and the second rotary tillage cutter shafts are connected with the power output ends of the auxiliary reduction gearboxes in a one-to-one correspondence mode; and the two folding mechanisms are arranged in one-to-one correspondence with the two suspension beams and are used for connecting the corresponding suspension beams and the cross beams.

The utility model relates to the technical field of wheelchair accessories, in particular to a quick-release wheelchair connecting piece. In order to solve the problems that a foldable wheelchair is quite inconvenient to connect with an electric vehicle head, a plurality of fasteners need to be adopted to connect with a connecting rod, the connecting operation is tedious, and the disassembly is also troublesome, the following technical scheme is provided: the quick-disassembly wheelchair connecting piece is used for a foldable wheelchair, and the quick-disassembly wheelchair connecting piece can be used for the electric vehicle. The front connecting piece and the rear connecting piece B are used for connecting an electric vehicle head and a wheelchair; the front connecting piece is installed on an electric vehicle head, the rear connecting piece B is fixedly connected with steel pipes on the two sides of a wheelchair, the rear connecting piece B and the front connecting piece are arranged in a mutually perpendicular mode, and the middle portion of the front connecting piece is connected with the middle portion of the rear connecting piece B in a clamped mode. After the electric vehicle head is connected with the wheelchair, the electric vehicle head and the wheelchair are convenient to disassemble and assemble, the convenience of the wheelchair in use is improved, and meanwhile, the stability of the folding wheelchair in use is ensured.

The utility model discloses an aluminum veneer curtain wall stabilizing assembly which comprises an aluminum veneer curtain wall body, clamping plates are fixedly connected to the top and the bottom of the left side of the front face of the aluminum veneer curtain wall body, a clamping frame is arranged on the right side of the front face of the aluminum veneer curtain wall body, and the clamping frame is movably connected with the clamping plates. The left side of the clamping frame is fixedly connected with a movable assembly, and a tensioning plate is arranged on the left side of the clamping frame. According to the aluminum veneer curtain wall, the tensioning plate is arranged, so that the tensioning plate can tension the gap between the aluminum veneer curtain wall bodies through the clamping frame on the clamping plate, and the problem that a certain splicing gap exists between adjacent aluminum veneer curtain walls due to the fact that no stable structure is arranged in the splicing process of the aluminum veneer curtain walls is solved; the problems that in the prior art, the attractiveness of the spliced aluminum veneer curtain walls is affected, meanwhile, the phenomenon of looseness can be caused by splicing gaps between the aluminum veneer curtain walls, and certain limitation exists are solved.

The utility model relates to the technical field of welding accessory equipment, and particularly discloses a limb welding slag receiving platform. The bearing platform comprises a balance weight part, a connecting part and a bearing part, and the balance weight part is used for preventing the edge welding slag bearing platform from overturning; the connecting part comprises a supporting part, a suspension part and a hanging part, one end of the supporting part is connected with the balance weight part, the other end of the supporting part is connected with the suspension part, so that when the bearing platform is in a working state, the suspension part is far away from the platform surface of the construction platform to form a construction space, and meanwhile, the hanging part connected with the suspension part is suspended outside the construction platform; the bearing part is fixedly connected with the hanging piece, and in the working state, the bearing part is suspended outside the construction platform along with the hanging piece and used for bearing welding slag. The utility model has the beneficial effects that the function of receiving the welding slag at the edge is played, the welding object is not contacted and interfered, and the welding work is not influenced; the device is simple in structure, low in manufacturing cost, convenient for later maintenance and suitable for the use environment of a construction site.

The utility model relates to the technical field of map surveying and mapping, and provides a portable supporting device for map surveying and mapping, which comprises two folding plates and a flexible plate, one end of each folding plate is fixedly provided with a limiting guide rail, the flexible plate is slidably arranged on the inner walls, close to the folding plates, of the two limiting guide rails, and the limiting guide rails are fixedly arranged on the flexible plate. Grips are fixedly mounted at the tops of the two folding plates; the multiple mounting grooves are formed in the ends, away from the flexible plate, of the two folding plates, and hinges are fixedly mounted on the inner walls of the multiple mounting grooves; according to the folding device, when the folding device is used, the two hinges are fixed in the mounting grooves of the back plates of the two folding plates, a worker can conveniently fold the backs of the two folding plates, the worker can conveniently carry the two folding plates by holding the handle with the hand, and the folding device is convenient to use. And the flexible plate slides on the inner wall of the limiting guide rail, is made of plastic, is convenient to bend, has a flat surface and can be used for laying surveying and mapping paper.