63 results about "Contact shell" patented technology

The invention provides a dot-matrix magnetic control convex point braille displayer. The displayer comprises a surface shell, a contact array formed by contact modules and a circuit board, wherein each contact module comprises a contact shell, a base, a coil, an iron core, an ejector rod, a permanent magnet, a positioning pin, a contact and a spring; under the action of the driving force provided by an external circuit, change and lock of slip sheets of the positioning pins on the bases are realized under the combined action of the acting force generated by pushing the permanent magnets with an electromagnet and the acting force of the springs, thus realizing transition of the contact states between smooth and projection and lock of the contact states; elastic metal sheets on the bases form a feedback path which can be used for feeding back the states of the contacts; and the friction generated when the components move is reduced by spraying polytetrafluoroethylene on the surfaces of the contact cases, the bases, the ejector rods, the permanent magnets, the positioning pins, the contacts and the springs, thus shortening the reaction time of the contacts and reducing the error display rate. The displayer can be used on various braille display equipment.

The invention relates to a needle aiding device for percutaneous implantation of a sensor. The needle aiding device comprises a cover, a contact shell, a needle feeding assembly and a percussion assembly, wherein the needle feeding assembly comprises a needle holder, an implanting component and a clamping component; the percussion assembly comprises a percussion component and a drive spring; the clamping component can move to a release position from a clamping position relative to the implanting component and the needle holder; and the needle feeding assembly further comprises an inertia holding component configured to limit the clamping component to move to the release position before the needle feeding assembly moves to the position close to a contact surface and allows the clamping components to move for a preset distance to a far end relative to the implanting component after the needle feeding assembly moves to the position close to the contact surface until the clamping componentmoves to the release position.

A method for culturing the shaped pearl includes preparing the shaped core from non-toxic hard plastics, inserting it in freshwater mussel or pearl oyster, culturing by hanging them in water, and picking up the shaped pearls from them. Its advantages are beautiful appearance, high quality, and high output of shaped pearls.

The invention provides an intelligent shell temperature control system of a traditional Chinese medicine fumigation therapeutic apparatus, which comprises a power processing circuit, a keyboard control circuit, an LCD (liquid crystal display) displaying circuit, a voice and alarm circuit, a single chip microcomputer system circuit, an A / D (analog / digital) conversion circuit, a laser ranging sensor, an environment temperature sensor, a shell temperature sensor, a pot internal steam temperature sensor, a pot internal steam pressure sensor, an EPROM (electrically programmable read-only-memory) circuit, an optocoupler, a silicon controlled thyristor and an electric heating film. An embedded single chip microcomputer is utilized as a control core, by means of measuring pot internal steam pressure and temperature, heating of the electric heating film is controlled in a closed-loop manner, constant output flow of steam is guaranteed, the system sets steam contact temperature by the aid of a user keyboard according to a relational table of environment temperature stored by an EPROM, steam contact shell temperature and the distance from a steam outlet to the shell of the body of a user, an LCD displays the position and the contact temperature of the human body in real time, the human body is prompted to move so as to reach a proper distance in a voice manner, and when the contact temperature is over high and skin of the user is easy to be injured, the system alarms and cuts off a power source. The intelligent shell temperature control system is simple in structure, low in manufacturing cost, convenient in operation, stable in performance and high in intelligent degree.

The invention discloses a dry-wet general type electroencephalogram sensing electrode. The dry-wet general type electroencephalogram sensing electrode comprises a shell and a sensing contact, whereinthe sensing contact comprises a contact shell, a first electrode and a second electrode; the first electrode and the second electrode are arranged on the contact shell; the contact shell is arranged on a housing; the housing is matched with the contact shell so as to form a current guiding channel which can guide a conductive medium; and the conductive medium can be drained to the middle of the first electrode and a scalp and / or the second electrode and the scalp through the current guiding channel. The dry-wet general type electroencephalogram sensing electrode disclosed by the invention canbe used as a dry electrode, a half-dry electrode or a wet electrode according to actual situations, and thus, the dry-wet general type electroencephalogram sensing electrode can be applied to different application scenes.

The invention belongs to the technical field of medical auxiliary instruments, and particularly relates to a gynecological uterus heating and massaging device. The device comprises an abdomen contactshell and waistbands symmetrically arranged on the two sides of the abdomen contact shell; the ends, away from the abdomen contact shell, of the two waistbands are detachably connected; the bottom surface of the abdomen contact shell is composed of a heating massage component; a heating power supply cavity is arranged on the inner wall of the abdomen contact shell; a heating power source is arranged in the heating power supply cavity; a point type massage driving component which protrudes downwards at a certain position and is arranged at the bottom of the heating massage component is arrangedin the abdomen contact shell. The uterus heating device is mild in massage mode, the massage position can be changed, and the comfort degree of a patient can be improved.

A connector includes a housing and a shield member. The housing includes an insertion-removal section and a guide face, a connection target is inserted into or removed from the insertion-removal section through an insertion-removal port in an insertion-removal direction, and the guide face is formed at a peripheral portion of the insertion-removal section so as to guide the connection target toward the insertion-removal section. The shield member includes a pair of shield portions and a coupling portion. The pair of shield portions are disposed on both sides of the housing in a first direction intersecting the insertion-removal direction, the coupling portion couples the pair of shield portions together in the first direction, the coupling portion contacts a location of the housing on an opposite side to the insertion-removal port in the insertion-removal direction, and the coupling portion at least partially overlaps the guide face as viewed in the insertion-removal direction.

The invention discloses a modular vacuum magnetic starter. The modular vacuum magnetic starter is provided with a starter body, wherein the starter body comprises a contactor 1 and a controller 2, the contactor 1 is provided with a contactor shell 3, three containing cavities are arranged in the contactor shell 3 in sequence from top to bottom, an electromagnetic device 4, a vacuum pipe 6 connected with the electromagnetic device 4 through a connecting mechanism 5 and a current transformer 7 connected with the vacuum pipe 6 are arranged in each containing cavity, the controller 2 is provided with a controller box 8 which is matched with the contactor shell 3, an electric wire is connected between the controller box 8 and the contactor shell 3, and the controller box 8 and the contact shell 3 are locked together through a locking mechanism. The modular vacuum magnetic starter has the advantages that the size is small, maintenance is convenient, a control system is arranged, and mechanical and electronic integration is achieved.

The invention provides a double-breakpoint moving contact apparatus. The apparatus comprises a moving contact limiting component, a first moving contact shaft, a first moving contact spring, a second moving contact spring, a first limiting component shaft, a second limiting component shaft and a moving-contact contact blade. The moving contact limiting component and a moving contact shell form a moving contact installation space. The first limiting component shaft is arranged on an upper end surface of an inner side of the moving contact limiting component. The second limiting component shaft is arranged on a lower end surface of the inner side of the moving contact limiting component. The first moving contact spring sleeves the first limiting component shaft. One end of the first moving contact spring is connected to the upper end surface of the inner side of the moving contact limiting component and the other end is connected to an upper side surface of the moving-contact contact blade. In the invention, a rotary-type double-breakpoint structure is adopted; the moving-contact contact blade adopts a multiple-piece type and a model with main and auxiliary contacts. Through using the double-breakpoint structure, a short-circuit connection and disconnection capability of a product can be effectively increased. Through using a multiple-piece type contact structure, a short time connection and short-term tolerance capability can be increased. And damages of an arc to a main contact can be reduced.

The invention discloses a variable pitch slip ring brush with an elastic conductive device and the technical scheme points include a connection terminal, a circuit board, a contact shell piece and an electric brush. The connection terminal is arranged on one side of the circuit board. Between the circuit board and the connection terminal is provided with an inserted copper conductor, which is provided with square holes on both sides. The elastic buckle of the contact spring plate is arranged on the square holes of the circuit board. The electric brush is a dovetail brush. One side of the contact spring plate is provided with an elastic buckle, the other side is connected with a reinforced rib and the dovetail groove brush. The contact spring plate is provided with an install dovetail groove matched with the dovetail groove brush. The dovetail groove brush is fixedly connected in the install dovetail groove. The Variable pitch slip ring brush with an elastic conductive device has the advantages that the elastic conductive device resolves the problems of light pressure, skipping and wearing off easily, damaging ring and short life caused by using wire structure electric brush. The Variable pitch slip ring brush with an elastic conductive device reduces maintenance frequency, achieves self-lubricating and self-maintaining, improves the stability of the transmitted signal and reduces the maintenance cost.

The invention provides a comprehensive detecting system for a portable label printing machine and a working method thereof. The comprehensive detecting system comprises a label box and a thermal transfer ribbon box which are arranged in a shell of the printing machine in sequence; a label of the label box penetrates out from the lower part of the thermal transfer ribbon box; a thermal transfer ribbon of the thermal transfer ribbon box is adhered to the label; the label penetrates out from a label outlet of the shell of the printing machine; one end of the shell of the printing machine is connected with an upper cover of the printing machine through a connecting shaft; an upper cover hanging hook which faces the shell of the printing machine is arranged on the upper cover of the printing machine, and is matched with a hanging hook of the shell of the printing machine, so that the upper cover of the printing machine and the shell of the printing machine are kept in a closed state; an upper cover detecting sensor is mounted at the hanging hook of the shell of the printing machine; whether the upper cover of the printing machine and the shell of the printing machine are buckled tightly is judged through the upper cover detecting sensor; a thermal transfer ribbon module and a label working module are mounted in the printing machine. Whether the cover of the printing machine is sealed or not is sensed by arranging an upper cover hanging hook contact shell sensor, so that the portable label printing machine works safely.

The invention discloses a main bus chamber with a stripping function without power failure of a ring main unit. The main bus chamber comprises a cabinet top box mounted at the top of a switch cabinet, two groups of static contact sleeves arranged in the cabinet top box, and a movable door device arranged in the cabinet top box, wherein each group of static contact sleeve comprises a contact shell fixed at the top of the switch cabinet and a static contact arranged inside the contact shell; the static contact is connected with a main bus in the switch cabinet; the movable door device comprises a bracket, two groups of movable door guide rods arranged on the bracket, two groups of horizontal movable doors which can slide along the movable door guide rods, and transmission pieces driving the movable doors to slide; the two ends of each group of movable door are respectively connected with the transmission pieces; each transmission piece is arranged on the bracket; and when each group of movable door is reset, the static contact sleeves correspond to one another up and down. The main bus chamber disclosed by the invention has the advantages of small size, accuracy for guiding, reliability for transmission, foldable storage of the movable doors, in-position protection, simplicity in operation and reliability in connection.

The invention relates to a plug device (10) in the form of a cigarette lighter plug, in particular for motor vehicles, for an electric connection to a low voltage outlet (20), comprising a housing part (12, 12A, 12B) located outside of the outlet (20), comprising a contact shell (11) that can be inserted into a contact sleeve (21) of the outlet (20), with at least one clamping means (13) arranged in a housing wall recess (11A) of the contact shell having at least one clamping jaw (13A) for fixing the plug device (10) after the insertion thereof into the outlet (20), with at least one spreading means (14) for outwardly spreading the at least one clamping jaw (13A) in relation to the contact shell (11) and with means for displacing the at least one spreading means (14). In order to be able to send relatively high currents to a user through a plug device in a safe manner and / or to improve the secure handling of the plug device, the invention proposes that the means for displacing the at least one spreading means (14) comprise a pushbutton arranged on a housing part (12, 12A, 12B) outside of the plug that is designed in such a way that the at least one spreading means (14) is displaced from a resting position (R) releasing the clamping jaws (13A) into a lockable spreading position (S) of the at least one clamping jaw (13A) and vice versa.

The invention discloses a stack type dielectric elastomer wave energy collector which comprises a lower plate, a dielectric elastomer and an upper plate, and is characterized in that a wrinkle detection device is arranged at the top of the dielectric elastomer, a rolling device is arranged at the top of the dielectric elastomer, and the lower plate is connected with the upper plate in an up-and-down sliding mode. The wrinkle detection device comprises a contact shell, a lead screw is inserted into one end of the contact shell in a penetrating mode, an inner shell is arranged in the contact shell, a plurality of elastic baffles are arranged in the inner shell, and flexible films are fixed between the elastic baffles and the inner wall of the bottom of the inner shell through bonding. A hydraulic control assembly is connected to the outer portion of the inner shell in a penetrating mode, a roots pump is connected to one end of the hydraulic control assembly in a penetrating mode, a pressure transmitter is arranged at one end of the inner shell, the hydraulic control assembly comprises a main body, and fixing plates are correspondingly arranged on the inner walls of the two sides of the main body. The stack type dielectric elastomer wave energy collector has the characteristics of avoiding wrinkle and long service life.

The invention provides an electric appliance box with high heat dissipation efficiency, and an air conditioner. The electric appliance box comprises a shell, a heat generation component and a heat dissipation mechanism, and is arranged in the shell, wherein the special-shaped component is encapsulated on the heat dissipation mechanism. According to the electric appliance box with high heat dissipation efficiency and the air conditioner, a special-shaped component with an irregular shape is encapsulated on a heat dissipation mechanism by using a pouring sealant, so that the special-shaped component and the heat dissipation mechanism are fixed into a whole so as to increase heat transfer rate to improve the heat dissipation effect, and all electronic components are comprehensively ensured towork at a proper working temperature so as to achieve the reliable operation of the electronic equipment; a high-emissivity coating is arranged, so that the heat dissipation efficiency is improved soas to further improve the heat dissipation effect; and by arranging fins and via holes, the fins protrude out of the shell, and the shell can be prevented from making contact with the heat dissipation mechanism, so that the heat dissipation effect of the heat dissipation mechanism and the heat dissipation efficiency of the shell are improved through airflow outside the shell, and the overall heatdissipation effect of the electric appliance box is guaranteed.

The invention discloses a massage device for an intelligent massage instrument, and discloses the intelligent massage instrument with the massage device for the intelligent massage instrument. The massage device for the intelligent massage instrument comprises a support and a contact shell, wherein the contact shell is made of a soft material, the contact shell is arranged on the support, and a plurality of conductive convex pieces are arranged on the contact shell. According to the massage device for the intelligent massage instrument provided by the embodiment of the invention, the contact shell can deform to generate elastic force, so that the convex pieces are better and tighter attached to the skin, the treatment effect is improved, the situation that the skin suffers from pricking pain during electrotherapy is avoided or reduced, and the comfort is improved.

The invention provides an earthquake alarm apparatus. The earthquake alarm apparatus comprises a base, a bracket mounted on the base, a connection line connected with the bracket, an induction hammer connected with the connection line, a controller, a switch, a power supply, a buzzer and a display lamp; the earthquake alarm apparatus further comprises a contact shell mounted on the base; the inner wall of the contact shell and the induction hammer are used as conductors; a guide line is arranged in the bracket in a penetrating manner; the connection line is a guide line; the connection line is respectively and electrically connected with the guide line in the bracket and the induction hammer; the controller is respectively and electrically connected with the guide line in the bracket, the inner wall of the contact shell and the switch; and the power supply is respectively and electrically connected with the switch, the buzzer and the display lamp. The earthquake alarm apparatus disclosed by the invention is simple in structure, is more suitable for household utilization and is convenient for each family to improve the earthquake alertness.

The invention relates to the technical field of locks, in particular to a power mechanism of an intelligent lock and the intelligent lock comprising the power mechanism. The power mechanism comprises a shell, a motor arranged in the shell, a control assembly connected with the motor and a power supply device; the shell is internally provided with a driving shaft connecting device connected with the power output end of the motor, and the driving shaft connecting device is connected with a lock cylinder of the intelligent lock; and a driving plate is installed on the motor, the control assembly comprises a main board and a switch induction sheet which are connected, the main board is connected with the power supply device and the driving plate, a contact shell is connected to the shell, and the switch induction sheet is in contact with the contact shell. By means of the power mechanism of the intelligent lock and the intelligent lock comprising the power mechanism, the structural design is reasonable, the integration degree is high, and the appearance is small and attractive. The switch induction sheet is triggered in a touch manner directly, unlocking of the intelligent lock is achieved, the using experience of a user is greatly improved, and unlocking is more convenient and rapid.

The invention provides a wire drawing device of an ultra-micro wire for enameled wire production and and a wire drawing method of the wire drawing device, and relates to the field of the enameled wireproduction. The wire drawing device comprises a transmission mechanism, a driving mechanism and a differential adjusting mechanism, wherein the speed of the driving mechanism is reduced, the rotatingspeed of a friction roller on the right side is reduced, and as a result, the running balance force of a threaded rod cannot be maintained; the threaded rod connected with the friction roller on theright side triggers a vent valve arranged in an inner cavity of a hollow cylinder, air is conveyed to the inner cavity of the hollow cylinder by the vent valve through a vent hole, the air in the inner cavity of the hollow cylinder downwards enters an inner cavity of a built-in shell through an air inlet hole, and oxygen is conveyed to an inner cavity of a movable cross rod on the right side; through cooperation of a piston and an assembling contact shell, due to the principle that the farther the relative distance between the transmission mechanism and the driving mechanism is, the faster therotational driving speed is, when the running speed of the driving mechanism and the running speed of the transmission mechanism are adjusted to be consistent, the running balance force of the threaded rod is kept, and the vent valve arranged in the inner cavity of the hollow cylinder is closed to keep the distance between the transmission mechanism and the driving mechanism.

The invention discloses a quick insertion and extraction connector. The quick insertion and extraction connector is characterized by comprising a connecting line body and a connector body, one end of the connecting line body is connected with the connector body, a connecting cavity is formed by an inverse insertion proof shell and a contact shell of the connector body, the contact shell is of a trapezoidal structure, and an angle exists between the contact shell and the inverse insertion proof shell; a convex platform is arranged at the bottom of the inverse insertion proof shell, the contact shell is provided with a concave platform, and terminals are arranged in the connecting cavity. The quick insertion and extraction connector has the advantages that a male and female integrated mode is adopted by the connector, the insertion and extraction are convenient, the terminals are made from berylco alloy with stronger strength, the connector body is made from nylon 66 with good toughness and strength, the technology is precise and simple, and the service life of the connector is longer.

The invention discloses a protective tube convenient to cool, and relates to the technical field of electronic elements. Contacting shells are connected to both ends of a ceramic shell, contacting heads are connected to the upper sides of the contacting shells in a penetrating mode, the bottoms of the contacting heads are connected with the ceramic shell through contacting springs, the two ends of the connecting heads are connected with connectors through wires, the connectors are installed at the upper end and the lower end inside the ceramic shell, the two connectors are connected through a fuse, radiating pipes are connected to the outer side wall of the ceramic shell in a penetrating mode, and an insulating shell is arranged at the outer side wall of the ceramic shell. The insurance pipe convenient to cool conveniently achieves elastic connection, the touch performance of the insurance pipe is guaranteed, thermal dissipation and insulation can be achieved, the service life is prolonged, and the safety is improved.

The invention relates to a connecting device capable of being disassembled and assembled quickly, in particular to a quick connector. The quick connector comprises a male connector and a female connector, wherein the male connector comprises a plug, a plug connector body is arranged on the inner wall of the rear portion of the plug in a sleeving manner, a plug valve seat is arranged in the middleof the inner wall of the plug, a plug valve element is arranged on the front portion of the inner wall of the plug, and a retaining groove is formed in the outer wall of the plug; and the female connector comprises a shell and an outer sleeve, the outer sleeve is arranged on the outer wall of the front portion of the shell in a sleeving manner and connected with a steel ball, the steel ball is arranged in a through hole of the shell, an outer sleeve spring is arranged between the shell and the outer sleeve, a shell connector body is arranged on the inner wall of the rear portion of the shell,a shell valve seat is clamped at the joint of the shell and the shell connector body, a shell valve pad is arranged behind the shell valve seat, the shell valve seat makes contact with a shell valve element nut, the shell valve element nut is sleeved with a shell valve element rod, and the front portion of the shell valve element rod makes contact with the shell valve element. The quick connectorhas the beneficial effects that the structure is novel, the design is ingenious and simple, the shell valve element rod is fixed through the shell valve element nut in a threaded mode, and the largerthe pressure of a Y-shaped ring of a shell valve sleeve is, the better the sealing effect is.

The invention discloses a joint connector. The joint connector includes: a bus bar having a plurality of male terminals; a plurality of female terminals electrically connected to the plurality of male terminals; a housing having a cavity receiving the bus bar and the plurality of female terminals; and a seal block having a plurality of receiving holes and contacting the housing, wherein each receiving hole receives an electrical wire connected to each female terminal.

The invention relates to the technical field of electronic component manufacturing, and discloses a detection device for preventing dislocation of a vacuum pump rotor of a vacuum sputtering instrument. The detection device comprises an air exhaust mechanism, a detection mechanism is movably connected in the air exhaust mechanism, the detection mechanism comprises a sliding block, a groove matched with the sliding block is formed in the air exhaust mechanism and is used for installing the sliding block, convenience is provided for the sliding block to move, reset springs are movably arranged on the two sides of the sliding block and used for driving the sliding block to reset, and a rotating ring is fixedly connected to the inner side of the sliding block. According to the detection device, the rotor drives the sliding block to rotate, the sliding block is in contact with the shell in the rotating process, the sliding block is driven to move under the action of the shell, the sliding block drives the rotating ring to rotate, the rotating ring drives the driving rod to rotate, and the driving rod drives the driven rod to rotate in the rotating process. The driven rod drives the rotating block to rotate in the rotating process, the function of automatically detecting the position of the rotor is achieved, and the production efficiency and stability of equipment are improved.

An electronic mounting device is disclosed having a base member with a receptacle in which a contact housing is disposed. The contact housing has a clamping spring, and the rotatable release lever isarranged outside the outer wall of the base part, which extends parallel to the assembly direction in the region of the receptacle. In the base position of the release lever, the electrical conductorintroduced into the contact housing is secured with a clamping spring of the contact housing, and in the release lever release position, the clamping spring is actuated and the electrical conductor isreleased. The release lever has a pin on a lower side of an outer wall facing the base part, a recess is provided in the outer wall in the region of the pin, and the pin, the recess, the contact housing and the clamping spring are arranged such that in a release position of the release lever the pin operates the clamping spring of the contact housing through the recess to release the electrical conductor. The pin has an engaging projection which, in the base position, is located within the base part without the introduction of an electrical conductor and, in the region of the recess, is operatively connected in an engaging manner to a portion of the outer wall edge, preventing the engaging projection from coming out of the base part.

An in-line switch assembly comprising a housing and two ports at different parts of the housing for insertion of an end of a power cord into the housing. The housing has first and second housing parts. A connection mechanism is provided in each of the ports, adapted to receive an end of a power cord, and is operable to cause piercing of a piercing part through a sheath of a power cord and then electrical contact with a conductive core of the power cord. The housing is configured to undergo from a first state in which the first and second housing parts are partially attached together, thereby allowing insertion of an end of a power cord through each of the ports to the respective connection mechanism, to a second state in which the first and second housing parts are fully attached together, with an inserted end of a said power cord being acted upon by the connection mechanism.

The invention provides a double-breakpoint moving contact apparatus. The apparatus comprises a moving contact limiting component, a first moving contact shaft, a first moving contact spring, a second moving contact spring, a first limiting component shaft, a second limiting component shaft and a moving-contact contact blade. The moving contact limiting component and a moving contact shell form a moving contact installation space. The first limiting component shaft is arranged on an upper end surface of an inner side of the moving contact limiting component. The second limiting component shaft is arranged on a lower end surface of the inner side of the moving contact limiting component. The first moving contact spring sleeves the first limiting component shaft. One end of the first moving contact spring is connected to the upper end surface of the inner side of the moving contact limiting component and the other end is connected to an upper side surface of the moving-contact contact blade. In the invention, a rotary-type double-breakpoint structure is adopted; the moving-contact contact blade adopts a multiple-piece type and a model with main and auxiliary contacts. Through using the double-breakpoint structure, a short-circuit connection and disconnection capability of a product can be effectively increased. Through using a multiple-piece type contact structure, a short time connection and short-term tolerance capability can be increased. And damages of an arc to a main contact can be reduced.

The invention discloses an environment-friendly drag-type leaf collection machine. The environment-friendly drag-type leaf collection machine comprises a carrying plate, a processing cabin and a collection barrel. The processing cabin is arranged on the carrying plate. The right end of the collection barrel is communicated with the processing cabin. A roller is arranged at the left end of the collection barrel. Through holes are distributed in the circumferential side face of the roller evenly. An inner cavity of the roller is divided into three sectorial cavities through evenly distributed separation plates. Three inner communicated holes in two-two correspondence are formed in the end face of the roller and communicated with the sectorial cavities. A contacting shell is arranged at the left end of the collection barrel. Three outer communicated holes are formed in the contacting shell, one is located on the upper side, one is located on the lower left side, and one is located on thelower right side. The outer communicated holes on the upper side and the lower left side are connected with a suction fan, and the other outer communicated hole is connected with a blowing machine. The outer communicated holes are matched with the inner communicated holes. A strip-shaped leaf inlet is arranged on the left upper side of the collection barrel, and is close to the circumferential side face of the roller. The environment-friendly drag-type leaf collection machine has the advantage of capability of collecting and cleaning non-crisp leaves.