39results about How to "Strong closing force" patented technology

A fuel injection valve for internal combustion engines, having a housing (1) in which an outer valve needle (20) and an inner valve needle (22) guided in it are disposed in a bore (16). The outer valve needle (20), by a longitudinal motion, controls an outer row (130) of injection openings, and the inner valve needle (22), likewise by means of a longitudinal motion, controls an inner row (230) of injection openings, to which rows (130; 230) of injection openings fuel is delivered at an injection pressure through a high-pressure conduit (10) embodied in the housing (1). A control pressure chamber (52) is embodied in the housing (1); it can be made to communicate with the high-pressure conduit (10), and by means of its pressure, a closing force is exerted at least indirectly on the inner valve needle (22). The high-pressure conduit (10) communicates with a control chamber (50), by whose pressure a closing force is exerted at least indirectly on the outer valve needle (20), and the control chamber (50) communicates with the control pressure chamber (52). A control valve (58) is disposed in a housing (1), and by means of the control valve, the control chamber (50) can be made to communicate with a leak fuel chamber (78) (<cross-reference target="DRAWINGS">FIG. 1< / CROSS-REFERENCE>).

The present invention includes a hook formed into a body formed into a hook shape and having a neck and fabricated from nonferromagnetic material with the body having a first end and a second end. The neck is proximate the first end. One side of the neck includes a center ridge with a flat top surface with either a magnet or ferromagnetic material embedded in the center ridge. The hook also includes a closure having a first closure end and a second closure end and a channel with a floor flanked by two lateral sides. A second magnet or a ferromagnetic material is embedded into the floor opposed to the first magnet or ferromagnetic material. The closure being pivotally and / or pivotally and slidably attached to the hook body by at least one pin. The magnet(s) and / or ferromagnetic material hold the closure in a closed position enclosing a defined space.

A hook formed into a body having a hook shape and having a neck and fabricated from nonferromagnetic material with the body having a first end and a second end. The neck is proximate the first end. The hook also includes a closure that is fabricated from nonmagnetic ferromagnetic material, other nonmagnetic materials, and magnetic ferromagnetic materials, and having a first closure end and a second closure end, the closure being pivotally and / or pivotally and slidably attached to the body and positioned to span a gap between the second end of the hook and the body. There is at least one magnet fixedly attached to the neck, so the at least one magnet holds the closure in a closed position that spans the gap such that the hook encloses a defined space in the closed position.

The invention discloses a sand mixer which comprises a sand mixer supporting frame. A sand mixing chamber is arranged on the supporting frame and comprises a sand mixing barrel vertically fixed to the supporting frame. A rotary bottom disc is horizontally arranged at the bottom of the sand mixing barrel and provided with a drive device capable of driving the rotary bottom disc to rotate. The sand mixing barrel and the rotary bottom disc are in interference fit. The sand mixer further comprises one or two or more blade rotors with the stirring function. Rotating shafts of the blade rotors vertically downwards stretch into the sand mixing chamber. The upper ends of the rotating shafts of the blade rotors are rotationally connected with the supporting frame. The rotating shafts of the blade rotors are provided with rotating drive devices. The sand mixer further comprises a scraper. A scraper shaft of the scraper vertically downwards stretches into the sand mixing chamber along the axis of the rotary bottom disc. The upper end of the scraper shaft is fixedly connected with the supporting frame. A feeding hopper and a water spraying device are arranged above the sand mixing barrel. The sand mixing barrel is provided with a discharging door structure. The sand mixer has the beneficial effects that no dead corners exist during rotating sand mixing, the sand mixing quality is good, the installed power is small, and energy consumption is low.

A hook shaped body having a neck and fabricated from nonferromagnetic material. The body possesses a first end and a second end. The neck is proximate the first end. The hook also includes a closure that is fabricated from ferromagnetic material and has a first closure end and a second closure end. The closure is pivotally attached to the body and is positioned to span a gap between the second end of the hook and the body. There is at least one magnet fixedly attached to the neck, so the at least one magnet holds the closure in a closed position that spans the gap such that the hook encloses a defined space in the closed position.

A die opening and closing device for a movable die plate 2 and a fixed die plate 1 includes a toggle link 5 disposed between the movable die plate 2 and a die tightening housing 8, a cross head 6 for flexing the toggle link 5, and a motor-driven ball screw 7 penetrating through the die tightening housing 8 and inserted into the cross head 6, and this die opening and closing device is provided with die thickness adjusting means 9 for adjusting the die thickness S when the die is tightened by extension of the toggle link 5, and ball screw rotation control means 20 for controlling constant the cracking gap, and a foamed resin molding machine is presented, together with its operating method.

A safety cabinet door device for an electrical cabinet is used for opening and closing an operation window (101) of the electrical cabinet (100) and comprises an upper protruding part (11), a lower protruding part (12), two guide vertical posts (13), a cabinet door plate (211) and a driving assembly (200), wherein the upper protruding part (11), the lower protruding part (12) and the electrical cabinet (100) are integratedly arranged, the two guide vertical posts (13) are fixedly arranged between the upper protruding part (11) and the lower protruding part (12) and are symmetrically arranged in front of the operation window (101), the cabinet door plate (211) is guided by the two guide vertical posts (13) and can vertically slide, the driving assembly (200) is used for driving the cabinet door plate (211) to vertically slide and comprises two fixed sleeve vertical posts (4) and a fixed connection plate (21), the two fixed sleeve vertical posts (4) are fixed on the upper protruding part (11) in bilateral symmetry, and the fixed connection plate (21) is arranged under the two fixed sleeve vertical posts (4) and is fixedly connected with an upper side edge of the cabinet door plate (211).

The invention discloses an enhanced type adsorbable ligation clip and a preparation method thereof. The ligation clip is prepared from a base material and nano staple fibers, the nano staple fibers are uniformly dispersed in the base material in a manner of keeping a crystalline form, and the mass percent of the nano staple fibers in a composite material is 5% to 50%. The enhanced type adsorbableligation clip disclosed by the invention has good biocompatibility and biodegradability; after the ligation clip is used, phenomena such as tissue adhesion, infarction and sepsis cannot be caused; during degradation, polyester materials of the nano staple fibers such as polyglycollide or polylactide are relatively high in hydrolysis speed, and a regional acidic environment can be generally formedinside the ligation clip in 30 days, so that the degradation of the base material is accelerated, and the absorption time of the base material is greatly shortened to 90 days from original 180 days; the generation of foreign-matter adverse reaction is absent, so that the clinical requirements of medical materials can be met.

The invention discloses a door closer. The door closer comprises a sleeve, an adjusting assembly, a first damping assembly and a second damping assembly; the first damping assembly and the second damping assembly are installed in the sleeve; the adjusting assembly comprises a first adjusting piece and a second adjusting piece; the first damping assembly comprises a first elastic piece; an end of the first elastic piece is connected to the surface of the first adjusting piece; the first adjusting piece is fixed to a rotating shaft; the first elastic piece can rotate around the rotating shaft; the second damping assembly comprises a damping piece; an end of the damping piece is hinged to the second adjusting piece; the second adjusting piece is fixed to the rotating shaft; and the damping piece and the first elastic piece can rotate around the rotating shaft at the same time. Through the adoption of the door closer, effective buffering can be provided, a rotating shaft door can be closed gently, the speed of different door opening and closing processes can be adjusted, and convenient use is achieved.

The invention relates to a four-cylinder closed hydraulic bucket for a rotary excavating pile machine. The four-cylinder closed hydraulic bucket can drill and excavate a hole and can also be used for a continuous wall excavating project. The problem that when a known hydraulic bucket for the rotary excavating pile machine meets some hard operation layers, two bucket bodies cannot be closed in place and cannot be lifted and unload soil is mainly solved. A stretchable drill rod is inserted into a sleeve groove of a tooth disc occluder to be connected through a plug pin, and the lower end of the tooth disc occluder is connected with a stand column. Two bucket bodies are connected to two bucket hinge shafts at the lower end of the stand column respectively. The upper ends of four hydraulic oil cylinders are connected to four oil cylinder hinge shafts on the stand column respectively, and the lower ends of the four hydraulic oil cylinders are connected to four oil cylinder connecting shafts on the two bucket bodies respectively. The four-cylinder closed hydraulic bucket is good in operation guidance, the perpendicularity of the stretchable drill rod is high, the included angle between the guiding lines of the four hydraulic oil cylinders and the vertical line of the stretchable drill rod is large, the formed closing force of the bucket bodies is large, and the four-cylinder closed hydraulic bucket is convenient to assemble and disassemble.

The electrically controlled two-way valve includes valve body, valve core, sealing parts, drive system and electric control system. The valve body is matched with the sealing part tightly and has no mechanical part communicated with outside. The drive system includes screw, dialing fork matched with the screw and shifted by means of the rotation of the screw, outer magnet pressure contacting with the dialing fork, and inner magnet interacting with the outer magnet and the push rod for the inner magnet to be embedded on. The push rod can shift axially to control the valve core for changing over between two states of opening and closing. The electric control system is provided with step motor.

The invention provides an energy-saving type cabinet door device for an electric cabinet for opening and closing an operation window (101) of the electric cabinet (100). The energy-saving type cabinet door device comprises an upper projection part (11), a lower projection part (12), two guide upright posts (13), a cabinet body door sheet (211) and a drive assembly (200), wherein the upper projection part (11), the lower projection part (12) and the electric cabinet (100) are integrally arranged; the two guide upright posts (13) are fixedly arranged between the upper projection part (11) and the lower projection part (12) and are symmetrically distributed at the front end of the operation window (101); the cabinet body door sheet (211) is guided by the two guide upright posts (13) and can slide up and down; the drive assembly (200) is used for driving the cabinet body door sheet (211) to slide up and down; the drive assembly (200) comprises two fixed sleeve upright posts (4) and a fixed connection plate (21); the two fixed sleeve upright posts (4) are bilaterally symmetrically fixed on the upper projection part (11); and the fixed connection plate (21) is located at the lower parts of the two fixed sleeve upright posts (4) and is fixedly connected with the upper edge of the cabinet body door sheet (211).

A device and method are provided for clips or staples as an effective substitute for suture material when joining body tissue or covering body tissue with a mesh, such as is particularly used in fracture operations. The device for applying a medical lockable clip (1) in a tissue area, includes a) an automatic advancing mechanism oriented in the direction of the tissue area from a starting position and having a guide in the advancing direction for the clip, wherein the clip has two gripper teeth oriented in the advancing direction, b) a stop for the advancing mechanism, and c) a locking element displaceable with the advancing mechanism and having a locking mechanism on the clip side for locking the clip, wherein d) the locking element is displaceable together with and parallel to the advancing mechanism, and e) the stop does not limit the motion of the locking element.

A cabinet door apparatus for an electrical cabinet is used to open and close an operation window (101) of the electrical cabinet (100), and comprises an upper projecting part (11) and a lower projecting part (12) integrally arranged with the electrical cabinet (100), two guiding columns (13) which are arranged between the upper projecting part (11) and a lower projecting part (12) and symmetrically arranged in the front end of the operation window (101), a cabinet door plate (211) which is guided by the two guiding columns (13) and can slide up and down, and a driving assembly (200) which drives the cabinet door plate (211) to slide up and down, wherein the driving assembly (200) comprises two fixed sleeve columns (4) which are fixed on the upper projecting part (11) in a left-right symmetrical way, and a fixed connecting plate (21) which is arranged under the two fixed sleeve columns (4) and fixedly connected to the upper edge of the cabinet door plate (211).

The invention provides an electromagnetic pilot pneumatic control valve for opening and closing double-active control, and solves the problem of difficult meeting of quick closing deceleration requirements of an engine caused by slower closing response due to influence on a traditional engine control valve by gradual reduction of the exhaust speed and the spring loading force. The electromagneticpilot pneumatic control valve comprises a main valve, an opening secondary valve and a closing secondary valve; the main valve comprises a main valve body, a main valve element and a main valve spring; the main valve element is arranged in the main valve body to form two independent air cavities in the main valve body: an opening air cavity and a closing air cavity; the main valve spring is arranged in the closing air cavity; the main valve body is provided with a medium inlet and a medium outlet; the opening secondary valve and the closing secondary valve are both electromagnetic valves; theopening secondary valve is used for controlling inflation and deflation of the opening air cavity and providing opening force to the main valve element; and the closing secondary valve is used for controlling inflation and deflation of the closing air cavity and providing closing force to the main valve element.

A stable cabinet door apparatus for an electrical cabinet is used for opening and closing an operating window (101) of an electrical cabinet (100). The apparatus comprises an upper protruding portion (11) and a lower protruding portion (12) integrally arranged with the electrical cabinet (100), two guiding columns (13) fixedly arranged between the upper protruding portion (11) and the lower protruding portion (12) and symmetrically distributed at the front end of the operating window (101), a cabinet door plate (211) which is guided by the two guiding columns (13) and can be slid up and down, and a driving assembly (200) used for driving the cabinet door plate (211) to slide up and down, wherein the driving assembly (200) comprises two fixed sleeve columns (4) fixed on the upper protruding portion (11) on the left and the right symmetrically, and a fixed connecting plate (21) which is under the two fixed sleeve columns (4) and is fixedly connected with the upper edge of the cabinet door plate (211).

A shock absorption type cabinet door device for an electrical cabinet is used for opening and closing an operation window (101) of the electrical cabinet (100) and comprises an upper protruding part (11), a lower protruding part (12), two guide vertical posts (13), a cabinet door plate (211) and a driving assembly (200), wherein the upper protruding part (11), the lower protruding part (12) and the electrical cabinet (100) are integratedly arranged, the two guide vertical posts (13) are fixedly arranged between the upper protruding part (11) and the lower protruding part (12) and are symmetrically arranged in front of the operation window (101), the cabinet door plate (211) is guided by the two guide vertical posts (13) and can vertically slide, the driving assembly (200) is used for driving the cabinet door plate (211) to vertically slide and comprises two fixed sleeve vertical posts (4) and a fixed connection plate (21), the two fixed sleeve vertical posts (4) are fixed on the upper protruding part (11) in bilateral symmetry, and the fixed connection plate (21) is arranged under the two fixed sleeve vertical posts (4) and is fixedly connected with an upper side edge of the cabinet door plate (211).

A controllable cabinet door device for an electrical cabinet is used for carrying out opening and closing on an operation window (101) of the electrical cabinet (100) and comprises an upper protruding portion (11), a lower protruding portion (12), two guide stand columns (13), a cabinet body door plate (211) and a drive assembly (200). The upper protruding portion (11) and the lower protruding portion (12) are integrally arranged with the electrical cabinet (100), the two guide stand columns (13) are fixedly arranged between the upper protruding portion (11) and the lower protruding portion (12) and are symmetrically distributed at the front end of the operation window (101), the cabinet body door plate (211) is guided by the two guide stand columns (13) and can vertically slide, the drive assembly (200) is used for driving the cabinet body door plate (211) to vertically slide, and comprises two fixed sleeve stand columns (4) and a fixed connecting plate (21), the fixed sleeve stand columns (4) are fixed to the upper protruding portion (11) in a left-and-right symmetric manner, and the fixed connecting plate (21) is located below the two fixed sleeve stand columns (4) and fixedly connected with the upper edge of the cabinet body door plate (211).

The invention relates to the technical field of powder metallurgy, and discloses a spark plasma sintering system for powder metallurgy. The system comprises a bottom plate, a loading frame is arranged on the bottom plate, a sintering chamber is arranged on the loading frame, a die pressing mechanism is arranged on the sintering chamber, and the die pressing mechanism is used for shaping raw material powder; two hydraulic cylinders are symmetrically arranged on the loading frame; and a first through hole is further formed in the sintering cavity, a vacuum pump is arranged on the bottom plate, and a first pipeline is arranged on the vacuum pump. According to the spark plasma sintering system for powder metallurgy, the upper electrode and the lower electrode generate discharge plasma, discharge impact pressure and Joule heat, extra pressure is applied to raw material powder through the two hydraulic cylinders; and the forming speed of the raw material powder can be increased, and the whole-process intelligent operation of the sintering process is achieved through a control system composed of a terminal module, an execution module and a measurement module.

A device for closing a delivery head of a dispensing machine for delivering fluid products comprises: a stationary support (22); a drive shaft (28), which rotates with respect to the stationary support (22) around a vertical axis (A), and can be moved with respect to the stationary support (22) along the same vertical axis (A); a cup-shaped closing element (24) carried at the distal end of an arm(26) fixed to a lower end (36) of the drive shaft (28); and a screw and nut mechanism (30, 50) which controls a translation of the closing element (24) in the direction of the longitudinal axis (A) and a rotation movement to the longitudinal axis (A) using a single actuator (58).

An intelligent cabinet door device for an electric cabinet is used for opening and closing an operation window (101) of the electric cabinet (100). The device comprises an upper protruding part (11) and a lower protruding part (12) integrally arranged on the electric cabinet (100), two guide upright columns (13) fixedly arranged between the upper protruding part (11) and the lower protruding part (12) and symmetrically arranged at the front end of the operation window (101), a cabinet body door plate (211) which is guided by the two guide upright columns (13) and can slide up and down, and a driving assembly (200) used for driving the cabinet body door plate (211) to slide up and down. The driving assembly (200) comprises two fixing sleeve upright columns (4) horizontally symmetrically fixed to the upper protruding part (11) and a fixed connection plate (21) located below the two fixing sleeve upright columns (4) and fixedly connected with the upper edge of the cabinet body door plate (211).

A device and method are provided for clips or staples as an effective substitute for suture material when joining body tissue or covering body tissue with a mesh, such as is particularly used in fracture operations. The device for applying a medical lockable clip (1) in a tissue area, includes a) an automatic advancing mechanism oriented in the direction of the tissue area from a starting position and having a guide in the advancing direction for the clip, wherein the clip has two gripper teeth oriented in the advancing direction, b) a stop for the advancing mechanism, and c) a locking element displaceable with the advancing mechanism and having a locking mechanism on the clip side for locking the clip, wherein d) the locking element is displaceable together with and parallel to the advancing mechanism, and e) the stop does not limit the motion of the locking element.

The invention provides a quick closing mechanism of an isolating switch and the isolating switch with the quick closing mechanism. The quick closing mechanism of the isolating switch comprises a moving contact support with a moving contact, a static contact support with a static contact, an operating handle, a connecting rod, a sliding groove, an elastic driving piece and a quick closing piece. The quick closing piece is hinged and extends to form a limiting step, the moving contact is arranged at a first end of the moving contact support, a first end of the moving contact support further extends to form a hook portion corresponding to the limiting step, the elastic driving piece acts on a second end of the moving contact support, one end of the connecting rod is connected with the operating handle, and the other end of the connecting rod is connected with the middle position of the moving contact support and is in sliding fit in the sliding groove. And a blocking and limiting structure of the quick closing piece is arranged, so that the closing action of the moving contact support can store energy at first and then release energy to realize quick closing, the closing force is large, the speed is high, and the contact is stable.

The invention relates to an energy-saving type cabinet door device for an electrical cabinet. The energy-saving type cabinet door device for the electrical cabinet is used for opening and closing an operation window (101) of an electrical cabinet (100). The energy-saving type cabinet door device includes an upper protruding portion (11), a lower protruding portion (12), two guide columns (12), a cabinet body door plate (211) which can be guided by the two guide columns (12) so as to slide up and down, and a driving assembly (200) for driving the cabinet body door plate (211) to slide up and down, wherein the upper protruding portion (11) and the lower protruding portion (12) are integrally arranged on the electrical cabinet (100), the two guide columns (12) are fixedly disposed between the upper protruding portion (11) and the lower protruding portion (12) and symmetrically distributed at the front end of the operation window (101), and the driving assembly (200) comprises two fixed sleeve upright columns (4) which are in bilateral symmetry and fixed to the upper protruding portion (11), and connecting plates (21) which are located below the fixed sleeve upright columns (4) and are fixedly connected with the upper edge of the cabinet body door plate (211).

The invention relates to a pulse dust collection device. The pulse dust collection device comprises a fuel gas pipeline, a working air pipeline, a purging air pipeline and a pulse generation pipeline, wherein the pulse generation pipeline sequentially comprises a first connecting pipe, a mixing tank, a second connecting pipe, an ignition tank, a third connecting pipe, a pulse tank and a pulse nozzle; the fuel gas pipeline is connected and communicated with the mixing tank; the working air pipeline and the purging air pipeline are respectively connected and communicated with the pipe wall of the first connecting pipe. Since the mixing tank is arranged on the pulse generation pipeline, the fuel gas pipeline is connected and communicated with the mixing tank; the working air pipeline and the purging air pipeline are respectively connected and communicated with the pipe wall of the first connecting pipe, by firstly feeding working air and purging air into the first connecting pipe at the front end of the mixing tank and directly feeding fuel gas into the mixing tank, the working air, the purging air and the fuel gas can be uniformly mixed through the mixing tank, the ignition efficiency of the ignition tank is greatly improved and the equipment stability is improved.

A safety cabinet door device for a power electrical cabinet is used for opening and closing an operation window (101) of the electrical cabinet (100) and comprises an upper protruding part (11), a lower protruding part (12), two guide vertical posts (13), a cabinet door plate (211) and a driving assembly (200), wherein the upper protruding part (11), the lower protruding part (12) and the electrical cabinet (100) are integratedly arranged, the two guide vertical posts (13) are fixedly arranged between the upper protruding part (11) and the lower protruding part (12) and are symmetrically arranged in front of the operation window (101), the cabinet door plate (211) is guided by the two guide vertical posts (13) and can vertically slide, the driving assembly (200) is used for driving the cabinet door plate (211) to vertically slide and comprises two fixed sleeve vertical posts (4) and a fixed connection plate (21), the two fixed sleeve vertical posts (4) are fixed on the upper protruding part (11) in bilateral symmetry, and the fixed connection plate (21) is arranged under the two fixed sleeve vertical posts (4) and is fixedly connected with an upper side edge of the cabinet door plate (211).