61results about How to "Large operating force" patented technology

A connector has first and second housings (20, 10) that are connectable with one another. A lever (40) is mounted on the first housing (20) and has cam grooves (43) that engage cam pins (13) on the second housing (10). The housings (10, 20) are connected partly so that cam pins (13) fit into the cam grooves (43) to a specified position and so that mountable parts (12, 25; 28) begin engaging. The lever (40) then is operated, and a cam action is displayed as the cam pins (13) move in the cam grooves (43). As a result, the two housings (10, 20) are connected properly.

The invention provides an automatic cylinder cover locking device and a cheese dyeing machine with the automatic cylinder cover locking device. The automatic cylinder cover locking device is arranged between a cylinder cover and a cylinder body, the cylinder cover is provided with teeth uniformly distributed along the circumference, the upper end of the cylinder body is provided with a clamping hoop supporting the cylinder cover, the clamping hoop is provided with an annular groove for holding the teeth and an annular flange positioned above the annular groove, and the annular flange is provided with slots matched with the teeth. The automatic cylinder cover locking device also comprises a suspension arm and a driving device, wherein the suspension arm is arranged above the cylinder cover, a first end of the suspension arm is pivoted with the cylinder cover, and a second end of the suspension arm is pivoted with the clamping hoop; the driving device is provided with a driving end which is connected to a position on the cylinder cover, deviating from the central axis of the cylinder cover, to drive the cylinder cover to rotate around the central axis of the cylinder cover, so as to lock or unlock the cylinder cover. With the automatic cylinder cover locking device and the cheese dyeing machine with the automatic cylinder cover locking device, labor force is saved, the production efficiency is high, the labor cost is lowered, the mechanization level and automation level of equipment are improved, and realization of automatic production is facilitated.

The invention discloses a flexible minimally invasive surgery instrument based on a natural orifice. The flexible minimally invasive surgery instrument comprises an operation handle, a wrist driving device, a connecting catheter, a flexible wrist part and a tail end executing device. The flexible minimally invasive surgery instrument can be integrally applied to minimally invasive surgery in the fields of abdominal cavity, thoracic cavity, urination, gynecology and the like. In the surgery implementation process, the minimally invasive surgery intelligent instrument passes through a trocar hole formed in the body surface of a patient, and a doctor holds the instrument by hand, and puts the instrument into the body to implement the surgery operation; the instrument is held by the doctor by hand; all operations, including the instrument tail end opening and closing movement, of an ordinary minimally invasive surgery instrument can be realized; meanwhile, the three-freedom-degree movement (the pitching movement, the swinging movement and the auto-rotation movement) of the tail end of the instrument can also be realized through controlling the operation handle and the wrist driving device. The space multi-freedom-degree surgery actions can be output by the instrument, the action is flexible, and the operation force is great; the instrument is more suitable for minimally invasive surgery with complicated actions.

The present invention provides a rack-and-pinion steering gear unit whereby the operating force of a steering wheel or the operating assist force of an electric motor can be prevented from increasing, and whereby response can be improved in fine operations during forward travel and the like. A back surface (29) of a rack shaft (9) is elastically pressed toward a pinion shaft (5) by a pressing roller (34). The pressing roller (34) is rotatably supported, via a radial needle bearing (16a), on a support shaft (33) supported on and fixed to a holder (30). A thrust needle bearing (35) for bearing a thrust load applied by the pressing roller (34) is provided between an inner side surface of the holder (30) and two side surfaces of the pressing roller (34) in the axial direction.

A steering apparatus of the present invention includes a fixed bracket (1), a fastener (3), a primary cam (A) that rotates with a rotation operation of the fastener, and a secondary cam (B) that is non-rotatably attached to a fixed side portion and is in contact with the primary cam. Cam operating portions each including an inclined surface portion (51,71), a high level surface (52,72), and a contact protrusion are formed at regular intervals along a circumferential direction on a base flat surface of each of the primary cam and the secondary cam, and the inclined surface portion is constituted by a low gradually inclined surface (51a, 71a), a middle sharply inclined surface (51b, 71b), and a high gradually inclined surface (52,72) arranged in this order from the base flat surface toward the high level surface. With the arrangement, operability of an operating lever in locking and unlocking is improved.

A long-life switch includes a base in which fixed contact portions are exposed in a concentric manner in an upper surface thereof; an operation lever whose turning shaft center is disposed on a shaft center of a lever portion, and turnably supported along the upper surface of the base; a movable contact piece in which movable contact portions disposed at both ends of the movable contact piece are slidably disposed to the fixed contact portions; and a coil spring in which a shaft center of a coil portion is disposed eccentrically to a turning shaft center of the operation lever, the coil spring latching an arm portion extended from one end side of the coil portion to the upper surface of the base while swingably supporting the coil portion, the coil spring latching an arm portion extended from the other end side of the coil portion to the operation lever.

The invention discloses a percussion head of an expectoration instrument, relates to the field of expectoration instruments, and provides the percussion head which achieves percussion through linear motion and is used for the expectoration instrument. The percussion head of the expectoration instrument comprises a shell, an end cover, a motor, a driving disc, a vibration disc, reset springs, a flexible head, an adjusting sleeve and a handle; at least two guide pillars are connected to a lower end plate of the shell; the end cover covers a main shell body; the motor, the driving disc, the vibration disc and the reset springs are coaxially arranged in the main shell body from top to bottom; the motor is connected with the end cover; the driving disc is connected with the motor, bearings arearranged between the driving disc and the main shell body and limit the driving disc to axial movement, an annular driving track is arranged on the driving disc, and the surface of the annular drivingtrack is in a wavy shape; the vibration disc sleeves the guiding pillars, and balls are arranged on the vibration disc; the reset springs make the balls be in contact with the annular driving track;the flexible head is connected with the vibration disc, and the adjusting sleeve is connected with the shell and is adjustable in axial position; the handle is connected with the main shell body.

The invention relates to a disengagement bearing (1) for a shift separation clutch. The disengagement bearing (1) comprises a rotationally fixed inner bearing ring (2) and an associated peripheral bearing ring (4) on which an adjustment ring (7) is supported externally by means of a contact area (10). In order to reduce abrasion, the spherical contact area (10) is provided with a hard material coating.

The parked automobile braking method is a manually braking method to produce and accumulate some high pressure braking liquid and energy for braking parked automobile. It has braking control lever and braking executing lever with changeable lever ratio and baking cylinders with changeable number for different braking state. One hydraulic parked automobile brake includes liquid storage, braking handle, brake releasing handle, brake releasing valve, high pressure brake cylinders, low pressure brake cylinder with pressure limiting valve and connecting pipeline. The present invention is used in parked automobile braking as well as traveling automobile braking, if necessary.

A handle having a safe locking device, and a breaker comprising the handle, the handle drives the moving contact of a switching device to rotate between ON and OFF positions relative to a static contact, the static contact being fixed in the casing of the switching device; the handle comprises a handle base (10), a connection mechanism (20) with one end being fixedly connected to the moving contact, and the other end being connected to the handle base (10) to transfer torque, and a locking mechanism locking the handle base (10) and the connection mechanism (20) in the ON or OFF position under the normal operating state of the switching device; the connection mechanism (20) is connected to the handle base in the above mode, so that under an abnormal operating state where the moving contact is hard to separate from the static contact and based on the increase in separation resistance, the rotation of the handle base (10) drives the connection mechanism (20) to rotate relative to the handle base (10). As a result, when the handle base (10) is rotated to the OFF position, the connection mechanism (20) is located in an offset position offset from the OFF position, and thus the handle base (10) cannot be locked in the OFF position relative to the connection mechanism (20).

The invention discloses a wear-free anti-erosion clutch valve. The wear-free anti-erosion clutch valve comprises a valve body, a rotating valve element and a valve rod, wherein the valve body is provided with an input port and an output port, the rotating valve element is provided with a channel, and an input sealing surface and an output sealing surface are formed on one side of the channel; thevalve rod is connected with the rotating valve element to rotate and switch, wherein rotating opening and closing angles opened or closed non-simultaneously are formed between the input sealing surface and the output sealing surface, and the input port and the output port are sequentially closed / opened in a staggered mode when rotation is carried out. According to the wear-free anti-erosion clutchvalve, the service life is long, opening / closing torque is small, the flow resistance coefficient is small, the energy-saving effect is good, the manufacture, installation and maintenance are convenient, and the damage problem of abrasion (or scratch) and erosion (such as scouring and cavitation) of the valve is solved.

The cutting tool for stick material includes one U-shaped edge including the first edge and the second edge superposed each other, one operating lever, and one link rod mechanism. After some rod is inserted into the U-shaped edge and the operating lever is pushed downward, the link rod mechanism will make the first edge and the second edge rotate oppositely to cut down the rod. The link rod mechanism has such structure that when the operating lever is turned in some angle, the second edge is turned in a relatively smaller angle while the first edge is fixed. In addition, there is one auxiliary driving mechanism set between the first edge and the operating lever.

The invention discloses a multi-degree-of-freedom AGV missile transport and hanging robot system. The multi-degree-of-freedom AGV missile transport and hanging robot system comprises an AGV transportsystem, a translation lifting system and a position and posture fine adjustment system; the AGV transport system is composed of a vehicle body, driving wheel sets, movable wheel sets, a track, a pedal, missile storage racks, a control system and other assemblies; the translation lifting system is composed of a driving system, a hand wheel, a lifting sliding table, a connecting rod, a supporting rod, a translation sliding table and a manual switching rod; the position and posture fine adjustment system is composed of an X-axis translation assembly, a Y-axis translation assembly, a Z-axis lifting assembly, an A-axis rotary support assembly, a B-axis rotary support assembly, a C-axis rotary assembly and a fixing pin assembly. The multi-degree-of-freedom AGV missile transport and hanging robotsystem can achieve the smooth and flexible transportation of missiles, also meet the flexible and convenient installation requirements of the missiles, achieve the multi-posture and quick adjustmentand installation of the missiles and further have certain fault prevention capability.

The invention discloses a flexible minimally invasive surgery instrument based on a natural orifice. The flexible minimally invasive surgery instrument comprises an operation handle, a wrist driving device, a connecting catheter, a flexible wrist part and a tail end executing device. The flexible minimally invasive surgery instrument can be integrally applied to minimally invasive surgery in the fields of abdominal cavity, thoracic cavity, urination, gynecology and the like. In the surgery implementation process, the minimally invasive surgery intelligent instrument passes through a trocar hole formed in the body surface of a patient, and a doctor holds the instrument by hand, and puts the instrument into the body to implement the surgery operation; the instrument is held by the doctor by hand; all operations, including the instrument tail end opening and closing movement, of an ordinary minimally invasive surgery instrument can be realized; meanwhile, the three-freedom-degree movement (the pitching movement, the swinging movement and the auto-rotation movement) of the tail end of the instrument can also be realized through controlling the operation handle and the wrist driving device. The space multi-freedom-degree surgery actions can be output by the instrument, the action is flexible, and the operation force is great; the instrument is more suitable for minimally invasive surgery with complicated actions.

The present invention relates to a friction clutch which is especially for the motor vehicle, the friction clutch comprises a clamp plate which is connected with a casing with the mode that no relative rotation exists but the movement in the axial direction is restricted, wherein, a disk spring type component is arranged between the casing and the clamp plate, and the disk spring type component is supported in an annular swinging area arranged on the casing on one hand and on the other hand is used for applying load to the clamp plate in the direction of the friction plate lining of the clutch disk.

The invention discloses a hydraulic automatic parking device, which comprises a shell, a piston cylinder and a piston assembly, wherein the piston cylinder is fixedly arranged in the interior of the shell through a first clamping ring; a cylindrical cavity is formed in the interior of the piston cylinder; the piston assembly is arranged in the shell and can slide leftwards and rightwards in the shell. The hydraulic automatic parking device provided by the invention can be used for providing greater operating force through hydraulic operation, moreover, is compact in structure, can be conveniently integrated in an automatic transmission; the mechanical locking is realized by a parking gear and the hydraulic automatic parking device works reliably.

The invention provides an automobile accelerator pedal assembly preventing mistaken pressing and belongs to the technical field of automobile parts. The upper end of an auxiliary rod is hinged with afoundation column through a sleeve and the lower end of the auxiliary rod is hinged with a linkage mechanism through a second shaft pin; a linkage part is arranged at the middle of the auxiliary rod;one end of the linkage part is fixed to the inner side of the auxiliary rod and a clamping groove at the other end of the linkage part is matched with a brake rod; a base shaft equipped with a first roller is longitudinally arranged at the bottom of a base of an accelerator pedal; the linkage mechanism is arranged at the front end of the plane of the base; a linkage mechanism bracket comprises twosymmetrical vertical side plates provided with through grooves; the bottom of the linkage mechanism bracket is fixed to the base; a second roller is arranged at the middle of the second shaft pin; both ends of the second shaft pin are matched with the through grooves; the second shaft pin runs through the through grooves and is hinged with the auxiliary rod; a displacement sensor is arranged at the middle of the back of the accelerator pedal; a guide rod seat is arranged at the upper part of the back of the accelerator pedal; one end of a guide rod is matched with the guide rod seat and the other end of the guide rod is provided with a guide wheel matched with a groove channel; and the side wall, on the right side of the accelerator pedal, of the automobile is provided with a position-limiting mechanism. The automobile accelerator pedal assembly preventing the mistaken pressing is mainly used for automobile active safety.

The invention provides a novel limiter shell body structure. The novel limiter shell body structure comprises a limit arm, wherein a shell cover is installed on the limit arm; a limit support and a stop block are arranged at the top end and the bottom end of the limit arm separately; a shell body sleeves the top of the shell cover; nuts are welded to the left side and the right side outside the shell body separately; the two nuts are in threaded connection with a bolt separately; the other end of each of the two bolts stretches into the shell body; a stop sheet is connected to the other end ofeach of the two bolts; a spring is arranged at the other end of each of the two stop sheets; a slide block is connected to the other end of each of the two springs; a limit rod is arranged between the two slide blocks; and the two slide blocks are located at the left side and the right side of the limit arm separately. According to the novel limiter shell body structure, the two nuts are welded to the two sides of the shell body, the two bolts are installed separately, the stop sheets are compressed by adjusting the screwing dimensions of the bolts, and then the dimensions of a cavity of theshell body are adjusted; and the influence of manufacturing tolerance among a plurality of parts is balanced through adjustment for an operation force of a limiter, so that the actual operation forceof the limiter much approximates to a design theoretical value.

A brake cable connecting apparatus is structured to prevent the inadvertent disengagement of a cable end from the brake lever while transporting a drum brake. The bridge portion (11e) of the strut (11) extends above the free end (12e) of the brake lever (12) leaving a clearance (23), being smaller than the cable end (16a), therebetween. When the brake lever (12) rotates to the predetermined degree, the clearance (23) becomes larger than the cable end (16a) so that the cable end (16a) is able to pass through the clearance (23) between the bridge portion (11e) and the free end (12e).

The invention provides a bistable electromagnetic device, which is characterized by comprising a support, a coil, a push-and-pull rod and a permanent magnet, wherein the coil is wound on the support and has a hollow inside; the permanent magnet is fixedly arranged in the push-and-pull rod which can get in and out in a straight line in the hollow position under the interaction of magnetic forces; when the coil is subjected to excitation, the push-and-pull rod can be moved upwards to be absorbed on the top under the action of a soft magnet as the push-and-pull rod reaches the top, at present, the coil can realize self-holding without currents inside; and when the coil is subjected to reverse excitation, the push-and-pull rod can overcome the suction of the soft magnet to move downwards, and then is pulled down from the soft magnet until the soft magnet is blocked, at present, the push-and-pull rod can be absorbed with the soft magnet mutually. In the bistable electromagnetic device provided by the invention, the soft magnet as a closed magnetic path on a traditional electromagnetic device is changed, and forces in different directions can be generated between the soft magnet and the permanent magnet when the currents in different directions are charged in the coil, thus realizing bidirectional action.

The invention discloses a flexible minimally invasive surgical instrument based on a natural orifice. The flexible minimally invasive surgical instrument based on the natural orifice comprises a flexible catheter; the left end of the flexible catheter is rotationally connected with a mounting head through a connecting block; wire holes are fixedly formed in the upper end and the lower end of the connecting block; a transmission rope penetrates through the wire holes; the left side of the mounting head is rotationally connected with an opening and closing clamp; the outer side of the opening and closing clamp is fixedly connected with a spring; and the center of the interior of the mounting head is in sliding connection with a limiting block. According to the flexible minimally invasive surgical instrument based on the natural orifice, the surgical instrument can do multi-degree-of-freedom movement in an output space, is flexible in action and large in operating force, and is more suitable for a minimally invasive surgery with complex actions; and the tail end of the instrument can be controlled through swinging and rotating of the wrist and pressing of the thumb on a pull rod, andlarge-range movement is not needed, so that fatigue of doctors is relieved.

The present invention provides a lock force accumulation starter device which can reduce the number of the composition elements and implements miniaturization. The spin hinder part (20) has engagement part (50) which can prevent the ratch wheel (24) from rotating and loading device which maintain the engagement status of the engagement part (54) with the mode that preventing the ratch wheel (24) from hoarding the drive force which can start up the engine due to the rotation of the ratch wheel (24).

The invention provides an electromagnetic device. The electromagnetic device is characterized by comprising a bracket, a coil, a push-pull rod and permanent magnets, wherein the coil is wound on the bracket, and the interior of the coil is hollow; the permanent magnets are fixedly arranged in the push-pull rod; the push-pull rod can linearly access and move in the hollow part of the coil under the interaction of magnetic forces; when the coil is excited, the push-pull rod can move upwards and is attracted on the top under the action of a soft magnet when reaching the upper end, and the coil can also be automatically held without current; and when the coil is reversely excited, the push-pull rod overcomes the attractive force of the soft magnet and moves downwards, the push-pull rod is pulled down from the soft magnet till the push-pull rod is blocked by the soft magnet, and then the push-pull rod is mutually attracted with the soft magnet. According to the electromagnetic device provided by the invention, the soft magnet for closing a magnetic circuit on the traditional electromagnetic device is changed, forces of different directions are generated among the permanent magnets when the coil is charged with the current of different directions, and then bidirectional motion is realized in the absence of the action of spring restoring force.

The invention discloses a variable-speed gear for a parking brake system of a motor vehicle. The variable-speed gear consists of a spring for storing energy required for releasing brake, two or more than two locking mechanisms, and two or more than two groups of operating guys, which are combined with each other. The variable-speed gear has the advantages that when the operating acting force for implementing brake on a vehicle is not large, the variable-speed gear amplifies the working stroke for implementing brake on the vehicle by an operating rod for a plurality of times for transmission, so as to increase the working stroke for implementing brake on a braking mechanism of the vehicle by the operating rod; and when the operating acting force for implementing brake on the vehicle is large, the variable-speed gear amplifies the acting force for implementing brake on the vehicle exerted by the operating rod for a plurality of times for transmission, so as to increase the limited operating acting force and make the acting force for implementing brake on the braking mechanism of the vehicle large. When the variable-speed gear is matched with a vehicle in any vehicle type for use, people only need to replace the operating guys which are connected with the variable-speed gear, so that the variable-speed gear is convenient to promote.

A rack and pinion steering gear unit is achieved that is capable of preventing an increase in operating force of the steering wheel and auxiliary operating force from a motor, and improving the response performance to minute operation when traveling straight. A pressing roller 34 elastically pushes the rear surface 29 of a rack shaft 9 toward a pinion shaft 5. This pressing roller 34 is supported by way of a radial needle bearing 16a by a support shaft 33 that is supported by and fastened to a holder 30 so as to be able to rotate freely. A thrust needle bearing 35 that receives a thrust load that is applied to the pressing roller 34 is provided between both side surfaces in the axial direction of the pressing roller 34 and the inside surface of the holder 30.

The invention relates to an overload protection device for a thermosetting cutting knife. The overload protection device comprises a housing (1), wherein a wrench (2) and a supporting tube (3) are connected to the interior of the housing (1); the overload protection device is characterized in that the supporting tube (3) is sleeved with a sleeve (6); the two ends of the sleeve (6) are respectively provided with a flange (6a); the sleeve (6) is sleeved with a spring (7), and connected with a shift fork (5) in a matching manner; the shift fork (5) is correspondingly matched with the flanges (6a) and connected with the wrench (2); the spring (7) is arranged between the shift fork (5) and the flanges (6a). The overload protection device has the advantages that the spring is arranged in the device, so as to play effects of buffering, shock absorption and overload protection, the device can limit maximum operating force and absorb displacement amount of interference, and can effectively prevent the failure of instruments caused by excessive force in the operation.