949results about How to "Prevent falling out" patented technology

The invention relates to a manipulator, in particular to an elastic manipulator with a part protection structure. The elastic manipulator comprises a base, an air cylinder, a driving block, a first claw, a second claw and connecting rods, the air cylinder is arranged on the base, the first claw and the second claw are located on two sides of the driving block, middles of the first claw and the second claw are both hinged to the base, one end, close to the air cylinder, of each of the first claw and the second claw is hinged to the driving block through the corresponding connecting rod, the driving block is connected with a piston rod of the air cylinder, spring plates are arranged at opposite positions of clamping sides of the first claw and the second claw, two ends of each spring plate are fixed, and a gap is formed between the middle clamping portion of each spring plate and the inner side of the corresponding claw. When the elastic manipulator is used for grabbing parts, the spring plates with elasticity are in contact with the parts, and the elastic faces can protect the parts.

The device has a coupling arm with head born elastically pref. via a stabilizer joint. The joint transmits traction and pressure forces into the bogie via an outer housing (10) and energy absorption systems (9,11). The systems are switched in series and are located in the housing. One and / or both systems have an irreversibly deformable deformation element (23), e.g. a mechanical shock absorption part. This is e.g. a tube, which is deformed by a nozzle (25) or a pressure ring (21), after a set pressure and / or traction load limit on shear ring (20) and / or pin has been exceeded. -

To provide a waterproof case for electronic equipment constituted so that the engaging mechanism of a buckle can be released by easy operation and also capable of preventing the dropping of electronic equipment in the case of releasing the engaging mechanism of the buckle.The index finger of the right hand of the user is applied to a front surface of a fixed knob, the thumb of the right hand is applied to a rear surface of a movable knob, and the movable knob is slid by the thumb forwardly toward the fixed knob. When the movable knob is slid, a locking member moves forwardly in unison with the movable knob away from engaging surfaces of walls, whereupon opposite ends of the locking member disengage from the engaging surfaces of the walls. A buckle is now swingable out of a cavity about a pivot shaft. Then, the user grips the fixed knob and the movable knob and lifts the free end of the buckle to erect the buckle, and thereafter opens a front case member and a rear case member away from each other.

The invention relates to a shield tunnel segment structure considering municipal cable pipelines and an installing method. According to the adopted technical scheme, pre-buried channels are formed in segments, needing laying of cable supports, in a shield tunnel; the fixed ends on the front sides of cable support rods are fixed to the segments on the side walls through the pre-buried channels, and the rear sides of the cable support rods point to the interior of the tunnel in a jetting-out mode; arc-shaped supports are connected to the rear middle portions of the cable support rods, and the other ends of the arc-shaped supports are connected to a track base; the municipal cable pipelines are placed on the cable support rods. The shield tunnel segment structure has the advantages of achieving the multi-purpose effect and being good in structural performance. The shield tunnel segments, the track base and the supports are pre-manufactured components, and therefore quality is easy to guarantee. The supports and the pre-buried channels are high in strength, resistant to electricity and fire, capable of being produced on a large scale, high in technology reliability, easy to construct and short in construction period.

The invention relates to a practical training system of an industrial robot technology. The practical training system comprises a stereoscopic warehouse system, a control cabinet and a worktable, wherein a stacker crane capable of moving in an X axis and a Y axis and storing and fetching trays is arranged on the stereoscopic warehouse system; the practical training system further comprises a first conveying mechanism and a second conveying mechanism; the first conveying mechanism travels to and fro between the stereoscopic warehouse system and the second conveying mechanism through a guide rail; a mechanical arm and a camera are arranged on the two sides of the second conveying mechanism respectively; a third conveying mechanism is further arranged at the end part of the second conveying mechanism. A tray frame of the practical training system can accommodate a plurality of trays; meanwhile, a tray positioning block is arranged on the tray frame and used for preventing the trays from dropping out of the tray frame in storage; by setting the stacker crane on a sliding framework and by using an X axis or Y axis code reader, the accurate positioning and storing and fetching of each tray on the tray frame are realized; the product identification is realized by the camera; the articles are grabbed by the mechanical arm; therefore, the practical training system of the industrial robot technology is high in automation; the working efficiency of the practical training system is greatly improved.

The invention discloses a multifunctional screw turning device. The multifunctional screw turning device comprises a worktable, a turning mechanism, a positioning mechanism and a control mechanism. The turning mechanism comprises a lifting fixing plate, a turning motor and a driving box; a driving bevel gear and two driven bevel gears are arranged in the driving box; the turning motor drives the driving bevel gear to rotate so as to drive the driven bevel gears; the bottoms of the driven bevel gears are fixedly connected with driven shafts; and the bottoms of the driven shafts are detachably connected with turning heads. A lifting mechanism comprises guide columns, a lifting lead screw and sliding sleeves arranged on the guide columns in a sleeving mode, and a lifting nut in engaged transmission with the lifting lead screw is arranged on the lifting lead screw in a sleeving mode and fixedly connected with the sliding sleeve on the guide column on the left side. The positioning mechanism comprises a positioning base, lifting sleeves, a horizontal sliding rail and a sliding bottom block. The multifunctional screw turning device can conduct turning operation on two screws simultaneously, parts are fixed reliably, the screw turning efficiency is high, and the screw turning quality is good.

The invention provides an assembly device of a bottle stopper core of an assembly machine for bottle stopper and bottle body, belonging to the technical field of machinery. The assembly device solves the technical problems that in the existing bottle cap, the liquid spray device has low manual assembly efficiency and has influence on the body health of the workers and the like. The assembly device comprises a machine seat, a rotating shaft arranged on the machine seat and a rotating disc which is fixedly connected on the rotating shaft and rotates along with the rotating shaft; a material supporting plate is provided with a strip groove which can support the core; one side of the material supporting plate is provided with a feeding mechanism which conveys the core to the groove; the groove is internally provided with a plurality of suction ports; the suction ports are communicated with an air suction mechanism which is arranged on the machine seat and can absorb the core in the groove; the machine seat is provided with a material-conveying mechanism which can move the material supporting plate and push the core in the groove into the bottle. The assembly device of the bottle stopper core can accurately and stably assembly the core into the bottle body and has high assembly efficiency, reasonable design and the like.

The invention discloses an automatic loading mechanism of a pin shaft to solve the problem of low manual loading efficiency in the prior art. The mechanism comprises a swing rod arranged below a bin, wherein an outlet of the bin is arched; the swing rod comprises a first support rod and a second support rod formed to an L shape and integrally molded; the first support rod is driven through power to perform the reciprocating rotation; the upper part of the second support rod is a convex arched slide table; the convex arched slide table and the outlet have the same curvature; the convex arched slide table can slide along the outlet when the first support rod swings; a groove is formed in the end part of the second support rod at the side of the convex arched slide table, and can swing below the outlet; a push rod capable of performing reciprocating linear motion is arranged at one side of the swing rod; the other side of the swing rod is a spring chuck; and the axles of the spring chuck, the groove and the push rod are on one straight line.

The invention relates to a plate containing box and relative packing method for transmitting and storing plate material, as glass base plate of display. The containing box comprises a cover, a box, and a sofa base, in detachable structure, to reduce the volume in the container, improve containing efficiency and reduce cost. And the invention uses a connector between the box and the sofa base to combine them firmly. In transmission, the glass base plate can be vertical via separated box and be inclined via combined box and sofa base, while the seal between the cover and the box can insulate box from outer space.

The invention relates to a connecting structure capable of being rapidly mounted and dismounted. The connecting structure comprises a locking pin and a locking block. The locking pin comprises a pin shaft and a pin shaft sleeve arranged on the lower portion of the pin shaft in a sleeving mode through threads. The bottom surface of the pin shaft is a conical surface. The lower portion, under the pin shaft, of the pin shaft sleeve is provided with a plurality of through holes evenly distributed around the axis, and a steel ball which can freely move but can not fall out is arranged in each through hole. The locking block is provided with a connecting hole and a containing cavity, the connecting hole is formed in the top surface of the locking block, and the bottom of the connecting hole is communicated with the top of the containing cavity, and the top surface of the containing cavity is a conical surface. In the installation process, the pin shaft sleeve and the locking block are fixed to a connector and a connected part respectively, the pin shaft sleeve penetrates through the connector and enters the containing cavity of the locking block through the connecting hole, the pin shaft is rotated downwards so that the steel balls can be pushed to squeeze the conical top surface of the containing cavity through the conical bottom surface of the pin shaft, and the connector and the connected part squeeze and fix each other when subjected to force in opposite directions. In the dismounting process, the pin shaft is rotated upwards, the steel balls are not subjected to force, and then the connector and the connected part are separated.

The invention relates to a picard carriage and relative carriage cover. The inventive carriage cover elements comprise an upper surface layer, a lower surface layer, a strengthened layer and a periphery layer. Wherein, the upper surface layer, the lower surface layer and the periphery layer all made from glass steel material; the strengthened layer is the glass steel layer with beehive structural elements; said four layers can form the glass steel integrated element with beehive structural elements. The inventive carriage comprises a carriage body, a cover, connecting elements and supporting elements. Wherein, the connecting elements are inserted elements; the cover via the inserted elements and supporting elements is connected on the carriage, while the cover can rotate relative to the carriage body. The invention can prevent the matters inside the carriage from outside space, and reduce the driving resistance, with simple structure and long service life.

The invention relates to a squeezing device, in particular to an orange juicing device for fruit deep processing. The orange juicing device is capable of increasing the juicing rate, separating juicing residues and easy and reliable to operate. According to the technical scheme, the orange juicing device for fruit deep processing comprises support legs, a connecting plate, a juicing mechanism, a feeding hopper, a processing pipe, a fixing rod, a separating mechanism and the like; and the connecting plate is arranged on the tops of the left support leg and the right support leg, the juicing mechanism is mounted on the connecting plate, the feeding hopper is arranged in the middle of the left support leg, and the fixing rod is horizontally connected to the lower position of the middle of theleft support leg. According to the orange juicing device, through the mutual cooperation of the juicing mechanism and the separating mechanism, oranges in the feeding hopper are juiced, and meanwhileby using the optimization of the cutting mechanism and the filtering mechanism, the effects of increasing the juicing rate, separating juicing residues and being easy and reliable to operate are realized.

The invention relates to a feed mixing device, in particular to a feed mixing device for animal husbandry. The feed mixing device for animal husbandry can conveniently stir and mix food and feed. In order to achieve the technical purpose, the feed mixing device for animal husbandry comprises a feeding box and the like. A stirring box is connected to the bottom of the feeding box, a stirring mechanism is connected into the stirring box, the right side of the stirring box is connected with a driving mechanism, a first through hole is formed in the bottom of the stirring box, the bottom of the stirring box is rotationally connected with a baffle, the baffle is located on the lower side of the first through hole, and the right side of the bottom of the baffle is connected with the bottom of the stirring box in a bolt connection mode. Firstly, the driving mechanism is arranged, it is achieved that the stirring mechanism is driven by the driving mechanism to stir and mix the food and the feed, and the effect of evenly stirring and mixing the food and the feed effectively and rapidly is achieved.

The invention discloses a cargo delivery device for a laneway stacking machine as well as a cargo sorting and delivering method. The device comprises upright posts, a cross beam, traveling wheels, a traveling motor, a winch, an electronic control cabinet, vertical sliding rails and a cargo carrying table, wherein the winch comprises a winch motor, a driving roller and traction steel cables; one end of the traction steel cable is connected with the cargo carrying table; lateral rotating plates, gear lifting plates and a partitioning plate are arranged on the cargo carrying table; the lateral rotating plates and the gear lifting plates are connected with a rotation mechanism and a lifting mechanism; and a clamped telescopic cargo fork is mounted on the partitioning plate. The method comprises the following steps: transporting cargoes to a cargo platform from a conveyor belt by adopting the cargo fork when the stacking machine enters into a warehouse and works; putting the cargoes in storage on designated positions of a cargo shelf; transporting the cargoes arranged on the cargo shelf to the cargo carrying table by adopting the cargo fork when the cargoes are delivered out of the warehouse; putting the cargoes on the conveyor belt when the cargoes are delivered so as to ensure that the transportation volume and the transportation efficiency of the stacking machine are high; and due to a variety of the cargoes which are clamped and supported by the cargo fork as well as reasonable and ordered steps of in-warehousing operation and ex-warehousing operations, guarantee is providedfor high-efficiency transportation of the cargoes, and the transportation risk of the cargoes is low.

The invention discloses a novel showering device which comprises a switching valve, a handheld sprinkler, a first water pipe connecting the switching valve with the handheld sprinkler, a head sprinkler, a second water pipe connecting the switching valve with the head sprinkler, and a sliding seat mounted on the second water pipe and capable of moving up and down along the second water pipe. The switching valve is selectably connected with the first water pipe or the second water pipe, the handheld sprinkler is selectably inserted onto or taken down from the sliding seat, the handheld sprinkler comprises an upper cover, a lower cover and a switching device arranged between the upper cover and the lower cover, the upper cover and the lower cover are closed together, the lower cover is provided with a sprinkler water nozzle and a faucet water hole, and the switching device selectably opens the sprinkler water nozzle or the faucet water hole; when the sprinkler water faucet is opened, the handheld sprinkler ejects sprinkler water, and when the faucet water hole is opened, the handheld sprinkler ejects columnar water. The switching device opens the faucet water hole, the handheld sprinkler ejects the columnar water to realize a quick water release function, and the faucet water hole serves as a faucet, so that an additional faucet is not needed to be mounted in a bathroom and the novel showering device is quite simple in structure.

The invention provides a chemical fertilizer stirring machine, belongs to the technical field of agricultural mechanical equipment and aims at solving the problem that mixing uniformity of existing chemical fertilizer is not enough. The chemical fertilizer stirring machine comprises a machine enclosure, wherein the upper end of the machine enclosure is fixedly connected with a feeding hopper, four rolling shafts are rotatably connected in the machine enclosure, rolling belts sheathe the rolling shafts, the machine enclosure is provided with a filtration screen plate, the filtration screen plate is connected with one dynamic member which can drive the filtration screen plate to swing in a reciprocating manner, a pan mill is also hinged in the machine enclosure, the lower side surface of the pan mill presses against the filtration screen plate, a material flowing hole is formed in the pan mill, a spindle is also rotatably connected in the machine enclosure, a plurality of blades are connected in the circumferential direction on the spindle, the inner circumferential wall of the machine enclosure is rotatably connected with a plurality of stirring impellers, and a discharging hole is formed in a discharging part. The chemical fertilizer stirring machine can automatically carry out milling and stirring on a chemical fertilizer, stirring quality is good, and automation degree is high.

The invention relates to a connecting apparatus of dual-wall high-pressure gas pipelines. The connecting apparatus comprises a front ventilation flange, a rear ventilation flange, a pair of huff type cutting sleeves, a T-shaped sealing ring, an inner sealing ring, and an outer sealing ring. Inner holes are formed in the centers of the front ventilation flange and the rear ventilation flange along the axial directions; and a plurality of outer holes are formed by encircling the inner holes along the axial direction. The huff type cutting sleeves enable the front ventilation flange and the rear ventilation flange that are in a butt joint mode to be held tightly by bolts and nuts to form an integrated structure with an inner tube and outer tubes. The inner hole of the front ventilation flange and the inner hole of the rear ventilation flange are connected to form an inner tube for conveying a main medium; and the outer holes of the front ventilation flange and the outer holes of the rear ventilation flange are connected to form outer tubes for conveying auxiliary mediums. The provided connecting apparatus having advantages of small size, convenient installation, and high connection safety and reliability and the like can be applied to fields of natural gas extraction and conveying, chemical industry, shipping industry, and aerospace and the like and can be used for realizing connection of dual-wall high-pressure gas pipelines for conveying high-pressure combustible gas or hazardous gas indoors or in an environment with poor ventilation.

The invention discloses a single fulcrum panel television bracket comprising a rack plate and a wall bracket plate, wherein the rack plate is fixed at the back of a television, the wall bracket plate is fixed on a wall, the rack plate comprises a supporting part and extending arms located at two sides of the supporting part, the supporting part is provided with a recessed frame with an inverse U-shaped opening, the wall bracket plate is fixedly provided with a groove through which the recessed frame is inserted, and a first locking device is arranged between the wall bracket plate and the recessed frame. The single fulcrum panel television bracket has the advantages that the connection mode between the rack plate and the wall bracket plate is single fulcrum fixation. Therefore, the length H2 of the wall bracket plate can be less than the maximum hole pitch between two transverse fixing holes at the back of the panel television, and further the production cost is effectively lowered, and meanwhile the installation is simpler.

Container holder assembly for use in a medicament delivery device, comprising a tubular body elongated in an axial direction, said tubular body having a proximal end and an opposite distal end, and a retaining member releasably arranged to said tubular body for securing an elongated container placed inside the tubular body, wherein said retaining member comprises a resilient structure capable of exerting an axial force on said container in said tubular body for holding the container in a fixed position inside the tubular body so as to avoid replacement or damage of a container, and wherein a remote end of the container protrudes the remote end of the tubular body.

The invention relates to an electric automobile lithium battery cell capturing and conveying robot which comprises a base plate. Four universal wheels are symmetrically installed on the lower side of the lower end face of the base plate, the robot is moved to a required cell processing position through the four universal wheels, and the electric automobile lithium battery cell capturing and conveying robot is simple and convenient to operate. A cell capturing device is installed on the right side of the upper end face of the base plate and can achieve a function of annular efficient quick capturing of lithium battery cells, and a cell conveying device is installed on the left side of the upper end face of the base plate and can achieve a function of continuous batch correction and quick conveyance of the lithium battery cells. The electric automobile lithium battery cell capturing and conveying robot can achieve the functions of annular efficient quick capturing, continuous batch correction and quick conveyance of the lithium battery cells, and the electric automobile lithium battery cell capturing and conveying robot is simple and convenient to operate and high in working efficiency. The electric automobile lithium battery cell capturing and conveying robot has the advantages that the capturing speed is quick, the capturing time is short, a plurality of cells can be quickly captured, the capturing efficiency is high, the transmission speed is quick, the transmission time is short, the cell deviation position can be automatically corrected, and the transmission efficiency is high.

The invention discloses an intelligent city management garbage classifying and transporting device, and belongs to the technical field of city management garbage treatment. The device comprises a water collecting box, an inorganic garbage collecting box, an organic garbage collecting box, a separate filtering box, a through barrel body and a feed hopper, wherein the water collecting box, the inorganic garbage collecting box and the organic garbage collecting box are sequentially arranged, and the separate filtering box, the through barrel body and the feed hopper are sequentially connected tothe top of the water collecting box. A breaking mechanism is arranged in the through barrel body, a rotary shaft and an auger vane board spirally wound around the rotary shaft are arranged in the through barrel body, a lifting plate with the bottom connected with a spring is arranged in the separate filtering box, an obliquely-arranged separate filtering plate is arranged in the separate filteringbox, and an extrusion roller set is arranged on the outer side of the separate filtering box. The extrusion roller set comprises two rotary rollers arranged side by side and conveying augers horizontally arranged in the rotary rollers. The two ends of the rotary rollers are located above the inorganic garbage collecting box and the organic garbage collecting box separately, and second screen holes are evenly formed in one ends of the rotary rollers. Stinks can be effectively prevented from escaping, garbage can be automatically classified, and therefore different treatment measures can be adopted according to the garbage with different varieties.

The invention relates to a fixing fixture of a throwing machine table and the window-type press board thereof. The window-type press board is used for pressing the upper surface of a bearing board, and comprises a press board body, at least one window hole, and at least one cushion device, wherein the window hole passes through the press plate body for exposing the partial upper surface of the bearing board, the cushion device is arranged outside the window hole and comprises a butting end, when the window-type press board presses the upper surface of the bearing board, the butting end supports against the upper surface of the bearing board; when the window-type press board is lifted up, the butting end pushes the bearing board away downwards to prevent the bearing board from being liftedup along with the window-type press board. Thus, the warping of the bearing board can be avoided, and thereby improving the yield.

The invention discloses a painting trainer for art teaching, and relates to the technical field of art teaching appliances. The painting trainer comprises a base, universal wheels, a lower supporting mechanism, an upper supporting mechanism, a visual frame and a height adjusting mechanism, the universal wheels are fixed on the front side and the rear side of the left end of the lower surface of the base, the lower supporting mechanism is arranged on the right sides of the universal wheels, sliding rails in the lower supporting mechanism are fixed on the front side and the rear side of the lower surface of the base correspondingly, the upper supporting mechanism is arranged on the upper side of the base, a first supporting rod in the upper supporting mechanism is fixed on the upper surface of the base, the visual frame is hung on the upper side of the left end of a supporting plate in the upper supporting mechanism, and the front end and the rear end of the visual frame are screwed with the upper end of a screw rod and the upper end of an inserting rod in the height adjusting mechanism through connecting pieces correspondingly. When the painting trainer is in use, the supporting rod can be retracted into a connecting pipe, the volume of the device is reduced, then the fixing plate pulls out the lower side of the base to one side, and finally the base is tilted, so that the device is convenient to carry. The painting trainer has the advantages of being reasonable in arrangement, low in manufacturing cost and the like.

The invention discloses a drug screening mechanism which comprises a rack, at least two screening mechanisms and a conveying belt. The screening mechanisms are fixed on the rack, arranged in an inclining mode, and arranged in an equidistance mode from top to bottom. The conveying belt is connected with the screening mechanisms. Each screening mechanism comprises screen cloth. With respect to every two adjacent screening mechanisms, the mesh diameter of the screen cloth on the upper screening mechanism is larger than the mesh diameter of the screen cloth on the lower screening mechanism. The drug screening mechanism has the advantages of being capable of separating multiple drugs at one time and high in efficiency, and lowering procurement cost for drug manufacturers at the same time.

A high-pressure cylinder trolley capable of conveniently going up and going down stairs comprises a frame main body and armrests. The frame main body comprises a wheel axle, a bucket and two main support rods arranged oppositely, a semi-circular arc cylinder fence is fixedly connected between the two main support rods, the bottom ends of the two main support rods are fixedly connected with the bucket, the two main support rods are obliquely downwards fixedly connected with two first connecting rods arranged oppositely, the wheel axle is fixedly connected with the two main support rods through the two first connecting rods, triangular wheels are installed on the two ends of the wheel axle, each triangular wheel comprises a three-fork plate and three sub-wheels, the three-fork plates are rotationally connected with the two ends of the wheel axle, each sub-wheel is rotationally connected with the end of the corresponding three-fork plate, and the armrests are fixedly connected to the top ends of the two main support rods. When the high-pressure cylinder trolley capable of conveniently going up and going down stairs is used for conveying high-pressure cylinders to high floors, the trolley can conveniently carry high-pressure cylinders by going up and going down stairs, and there is no need for experimenters to uplift high-pressure cylinders to high floors, so that the labor intensity is reduced.

Disclosed herein is a window or doorway membrane system for selectively preventing ingress or egress of persons, animals, objects, or other unwanted environmental effects. The system may include a membrane, a first engagement mechanism for securing one end of the membrane to a wall or other anchor point; and a second engagement mechanism for releasably securing the membrane to a active panel of a door or window.

The invention relates to the technical field of dendrobe culture media preparation equipment, and discloses a potato washing, peeling and cutting integrated machine for preparation of dendrobe culturemedia. The potato washing, peeling and cutting integrated machine for the preparation of the dendrobe culture media comprises a frame body, a motor and a cylinder body, wherein the upper end and thelower end of the cylinder body are open, a mesh partition plate and an inclined partition plate are arranged in the cylinder body and divided the cylinder body into an upper portion, a middle portionand a lower portion, a center cylinder is arranged in the center of the cylinder body, the center cylinder penetrates through the three portions of the cylinder body, a rotating shaft penetrating through the center cylinder is arranged in the center cylinder in a penetrating mode, a brush seat and a water spraying mechanism are arranged at the top of the cylinder body, a material receiving tank iscommunicated with the lower part of the cylinder body through chutes, a longitudinal partition plate is arranged on the part of the center cylinder corresponding to the lower portion of the cylinderbody, and the lower end of the rotating shaft extends out of the lower end of the cylinder body and is connected to a disc cutter. According to the potato washing, peeling and cutting integrated machine for the preparation of the dendrobe culture media, the slicing and shredding efficiency is high, the integrated operation of cleaning, peeling and slices and shreds cutting of potatoes is achieved,the motor can drive to make the peeling and slices and shreds cutting tasks to be completed, and even one person can handle.

An internal battery (2) has a battery terminal provided on a tip and has a third engagement projection (11) provided on the other end in a vertical direction. A battery housing portion (4) has a connector (5) provided on a tip and has, on a rear end, a battery hook (6) for pressing the third engagement projection (11) interlockingly with a sliding operation from a release position to a lock position. The battery hook (6) is slid from the release position to the lock position to press the third engagement projection (11). Consequently, the battery terminal is caused to abut on the connector (5) and the internal battery 2 is fixed into the battery housing portion (4). A battery (3) is fixed and attachment is thus completed.