279 results about "Retaining Pin" patented technology

A fail-safe sealing system for a watercraft includes a self-bailing drain plug having an outer wall with a proximal end having a proximal opening, a distal end having a distal opening, and a fluid conduit that extends from the proximal opening to the distal opening. The sealing system includes a check valve including a ball disposed within the fluid conduit and being surrounded by the outer wall, and a ball retaining pin extending between opposite lateral sides of the outer wall adjacent the proximal opening for preventing the ball from passing through the proximal opening. The sealing system includes a sealing cap having a bayonet-style locking assembly that locks onto the ball retaining pin for securing the sealing cap to the proximal end of the outer wall for forming a water-tight seal with the proximal end of the outer wall of the self-bailing drain plug.

A sanitary facility, including a sanitary object to be suspended from a vertical wall, and a first fastening device for fixing the sanitary object to two retaining bolts provided on the wall. The first fastening device is fastened releasably to the sanitary object and has two retaining bolt receptacles for the retaining bolts. Each retaining bolt receptacle has a threaded bore for a retaining screw to be screwed against the respective retaining bolt. In the fixed state of the first fastening device, the threaded bores are directed to an upper wall of the sanitary object bearing a seat or lid fitting in the installation position. Two wall openings are provided in the wall. Two second fastening devices are provided for fastening the seat or lid fitting to the wall, each having a sleeve, which, in the installation position, reaches through a wall opening and is fixed on the wall by a fastener, with a through-hole that passes through the sleeve, and a retaining pin, which is connectable releasably to the sleeve and receives the seat or lid fitting.

The invention belongs to the technical field of aluminum plate casting and rolling, and particularly relates to metal aluminum plate casting and rolling machine casting roller surface treatment equipment which comprises a base, and a first operation table and a second operation table are arranged at the top of the base; a first supporting frame and a second supporting frame are arranged on one side of the base. Through the arrangement of the first operation table, the second operation table, the sliding seat, the first supporting frame and the like, the casting rollers with different lengths can be conveniently placed and fixed, and a grinding wheel for grinding carries out movable machining when grinding the casting rollers, and through the arrangement of a baffle, an annular supporting seat, a first piezoelectric ceramic block and a fixing ring, the grinding efficiency is improved. When a grinding wheel grinds a casting roller, current is conveniently transmitted to an annular supporting seat through the grinding wheel, so that the current is transmitted to a second metal magnetic block, then a second supporting frame is rotationally adjusted on a first supporting frame, the abraded grinding wheel is driven to move and approach the casting roller, and the contact between the grinding wheel and the casting roller meets the set requirement; therefore, the overall grinding of the casting roller is kept consistent.

The invention relates to the technical field of metallurgical steelmaking, in particular to a sand adding method for improving the self-opening rate of a steel ladle, which comprises the following steps: S1, cleaning the steel ladle, and cleaning and confirming a steel ladle nozzle channel; s2, the steel ladle is moved to a sand adding position, and it is determined that a mechanism is completely opened; s3, adding stuffing sand into a water gap for flow test; s4, after flow testing is completed, the oil cylinder is removed, the retaining pin is closed, sand adding operation is conducted according to the steel ladle age, and it is ensured that the top of the brick cup is in a mushroom shape; s5, after sand adding is completed, the sand adding condition is confirmed; in the step S4, when the steel ladle age is smaller than or equal to 10 times, the first sand adding amount is 20 kg; when the ladle age of the steel ladle is more than 10 times, the first sand adding amount is 25kg; the subsequent supplementing amount is 5kg each time. According to the sand adding method provided by the invention, the self-opening rate of the steel ladle can be ensured to reach 99.9% or above in actual production, and the production stability is favorably maintained.

The present invention relates to a test head for a probe station, which is used in conjunction with a carrier and a probe card, and includes a cover plate, a fixed frame, an interface board, a needle tower and a box body; a joint and a downward connection point are provided on the interface board, the connection point is electrically connected to the joint, and the interface board is fixedly installed with the fixed frame; the needle tower is installed under the fixed frame, the needle tower is provided with a pinhole, a spring pin is installed in the pinhole, the upper end of the spring pin is in contact with the connection point of the interface board, and the lower end of the spring pin is used to contact and connect with the probe of the probe card; the other end of the cover plate is flipped relative to the rotation axis to realize the closed cover state and the open cover state between the cover plate and the box body; in the closed cover state, the lower end of the spring pin of the needle tower can pass through the through hole A at the bottom of the box body to form a contact connection with the probe on the probe card. The present application can achieve reliable connection with the probe through a simple structure.

A weapon accessory mount for removably mounting an accessory on a weapon. The weapon accessory mount includes an accessory rail supported by a base with a weapon attachment interface that engages the weapon. The weapon attachment interface includes an alignment pin that interfaces a portion of the weapon and a retaining pin that couples to an additional portion of the weapon. The accessory rail utilizes mounting grooves to interchangeably couple weapon accessories to the weapon accessory mount. Furthermore, accessory interference locators are located within some of the mounting grooves to define weapon-accessory-specific locations along the accessory rail, in which a weapon accessory should not be mounted to. Additionally, the weapon accessory mount is configured for mounting non-boresight aligned optics to a weapon and locating the non-boresight aligned optic in relation to the weapon to use in tracking a target.

The invention relates to the related technical field of subway shields, in particular to an auxiliary cushion block structure for stacking shield segments, which comprises the shield segments, and a mounting mechanism is arranged on the surface of a screw shaft. According to the auxiliary cushion block structure for stacking the shield segments, through the arrangement of the mounting mechanism, the cushion block is mounted and dismounted through the mounting and dismounting seam of the rubber cushion block, the cushion block is communicated with the screw shaft hole and is laterally clamped, the replacement process is simplified, nuts do not need to be dismounted, and during mounting, a positioning pin penetrates through the outer supporting plate, the inner supporting plate and a second positioning hole of the rubber cushion block to determine the mounting angle of the cushion block; when a positioning pin is inserted, a limiting pin is clamped into a limiting hole of the sealing gasket under the action of a second spring, the positioning pin is stabilized, after a nut is locked, a rubber cushion block is firmly fixed, a loading and unloading seam is not separated, a second retaining pin at the tail end of a screw shaft prevents the nut from being separated, all the structures cooperate, and the sealing performance is improved. Component loss is avoided, and the structural stability and practicability of the auxiliary cushion block are improved.

The utility model discloses a supporting device which comprises a top frame and a plurality of supporting legs, the supporting legs are arranged at the lower end of the top frame, a protection structure is arranged between every two supporting legs, each protection structure comprises a first baffle, a second baffle and a connecting piece, a plurality of protection structures are arranged, and the first baffles are connected with the second baffles through the connecting pieces. The side end of the cave is protected through the protection structure; shielding plates are arranged at the two ends of the top frame, a middle plate is arranged in the middle of the top frame, a plurality of fixing needles are arranged on the supporting legs, the fixing needles penetrate through the lower ends of the supporting legs, threads are arranged on the surfaces of the fixing needles, and the fixing needles are in threaded connection with the supporting legs. Therefore, the supporting legs are fixed through the fixing needles.

The utility model relates to the technical field of connectors, and discloses an SMT female seat terminal connector, which comprises an outer shell, an inner shell is arranged in the outer shell, a plastic body is arranged in the inner shell, an upper row of terminals are arranged on the inner shell, a retaining pin is arranged at the extension end of the upper row of terminals, a lower row of terminals are arranged on the retaining pin, and the lower row of terminals are arranged on the retaining pin. Through laser spot welding on the outer shell and 90-degree bending, through the outer shell and a shielding sheet in front of the outer shell and 90-degree bending on the outer shell, the inner shell is installed in the outer shell, the plastic body is installed on the inner shell, and installation holes are formed in the tops of the upper row of terminals. The plastic body is provided with two groups of mounting holes, the two groups of mounting holes are symmetrically arranged at the two ends of the top of the plastic body respectively, the upper row of terminals are mounted on the plastic body, the upper row of terminals are connected with the lower row of terminals in a two-in-one molding manner, and the internal center height is higher than 4mm, so that more devices can be conveniently connected and used.

A safing sector for a minigun including a housing with an opening adjacent to barrels of the minigun comprising a safing sector cover; one or more retaining pin assemblies configured to retain the cover to the housing over the opening; a safing sector slide member; a safing sector slide control mechanism including a locking arm configured to impart forward and rearward sliding movement of the safing sector slide member relative to the safing sector cover between at least a fire position and a safe position, and a locking mechanism pivotally coupled to the locking arm and including a shelf stop to engage a locking shelf of the safing sector cover to lock the locking arm and the safing sector slide member in the fire position.

A weapon accessory mount for removably mounting an accessory on a weapon. The weapon accessory mount includes an accessory rail supported by a base with a weapon attachment interface that engages the weapon. The weapon attachment interface includes an alignment pin that interfaces a portion of the weapon and a retaining pin that couples to an additional portion of the weapon. The accessory rail utilizes mounting grooves to interchangeably couple weapon accessories to the weapon accessory mount. Furthermore, accessory interference locators are located within some of the mounting grooves to define weapon-accessory-specific locations along the accessory rail, in which a weapon accessory should not be mounted to. Additionally, the weapon accessory mount is configured for mounting non-boresight aligned optics to a weapon and locating the non-boresight aligned optic in relation to the weapon to use in tracking a target.

The utility model provides a large-diameter jacking pipe retaining device convenient to operate. Belongs to the technical field of pipe-jacking construction. According to the technical scheme, the device comprises a pipe joint located at a working well opening, triangular supports located on the two sides of the pipe joint are fixed to the working well opening, a retaining pin matched with a hoisting hole movably penetrates through the near end of the upper end of each triangular support in the horizontal direction, and a retaining block is fixedly connected to the end, away from the hoisting hole, of each retaining pin; the bottom of the retaining block is fixedly connected with a linkage rod which is arranged in the vertical direction, the lower end of the linkage rod is fixedly connected with a connecting block, the connecting block is fixedly connected with a connecting pin which movably penetrates through the tripod in the horizontal direction, the connecting pin is parallel to the retaining pin, and the tail end of the connecting pin is detachably connected with a limiting block; the large-diameter jacking pipe retaining device is simple in structure and reasonable in design, a user does not need to climb to a high position with the help of a ladder stand when retaining a pipe joint, time and labor are saved, and operation is convenient.

The utility model discloses a pin tin soldering device based on differential mode PFC and inductor PFC, and relates to the technical field of pin tin soldering. The pin tin soldering equipment based on the differential mode PFC and the inductor PFC comprises a bottom plate, a supporting table is fixedly installed above the bottom plate, a limiting mechanism used for limiting the positions of a coil and a substrate is installed above the bottom plate, a tin soldering mechanism used for tin soldering is fixedly installed above the supporting table, and a tin soldering mechanism used for tin soldering is installed above the supporting table. The limiting mechanism comprises a stepping motor fixedly installed in the center of the bottom plate, brackets are installed at the four corners of the supporting frame, limiting blocks are installed at the four corners of the supporting frame, element fixing, fixed pin tin soldering, inductor pin tin soldering and taking-down after tin soldering can be conducted at the same time in the four directions of the supporting frame, and the supporting frame is fixed to the top end of a rotating shaft of the stepping motor. And the rotating angle of the supporting frame is adjusted through the stepping motor, so that the four corner areas of the supporting frame are moved into the next working area, and the efficiency is improved.

The utility model relates to the technical field of building construction, and discloses a foundation pit temporary protection device for building site construction, which comprises two support columns, the opposite surfaces of the two support columns are both provided with mounting plates, the opposite surfaces of the two mounting plates are both in threaded connection with four screws, and the four screws are in threaded connection with the two support columns. Three protection boxes are fixedly connected to the opposite faces of the two mounting plates, an adjusting mechanism is arranged among the six protection boxes, reflective strips are fixedly connected to the front ends and the rear ends of the six protection boxes, fixing frames are fixedly connected to the lower sides of the interiors of the two supporting columns, and the fixing frames are fixedly connected to the lower sides of the interiors of the two supporting columns. The middles of the lower frame walls of the two fixing frames are both in threaded connection with reinforcing mechanisms. According to the foundation pit temporary protection device for building site construction, the device can be firmly fixed and the stability of the device is improved by arranging the fixing needle and the reinforcing mechanism, the length of the device can be flexibly adjusted by arranging the adjusting mechanism, the use requirement is met, and the foundation pit temporary protection device is suitable for being widely used.

A surgical stapler includes an anvil portion, a portion of a tissue contacting surface of the anvil portion located on one side of a stapling groove having a first width and a portion of the tissue contacting surface located on the other side of the stapling groove having a second width, the first width being greater than the second width. Such an arrangement allows a certain error to be allowed as much as possible when firing the retaining pin, for example, even if the retaining pin is not accurately received by the retaining pin recess, the end of the retaining pin abuts against an enlarged tissue contact surface of the anvil portion without miss the anvil portion into tissue. The retaining pin abuts against the enlarged tissue contact surface, thereby resisting actuation of the anvil portion and cartridge towards the closed configuration, which enables an operator to perceive anomalies in actuation of the guide pin. In addition, the retaining pin abutting against the tissue contact surface of the anvil portion may return to the retaining pin recess under subsequent slight wobble or similar operations to allow subsequent surgical procedures.

The invention relates to a compression spring (2), preferably as an emergency spring for a bogie of a railway vehicle, with a spring upper part (5), a spring lower part (3) and with an elastomeric spring element (7) vulcanised in between, with a centrally inserted stop bolt (16). According to the invention, the stop bolt (16) is designed in two parts with a one-piece longitudinal bolt part (17) with lower bolt head part (18) and with a separate upper bolt head part (19), which telescopically engages over an upper region of the longitudinal bolt part (17) and is, preferably vertically, displaceable there, wherein in the assembled state of the compression spring (2) the stop bolt (16), with respect to the vertical-axis direction, is inserted from below with its longitudinal bolt part (17) on the compression spring lower part (3), the upper bolt head part (19) is inserted on the compression spring upper part (5) and the compression spring upper part (5) is displaced on the longitudinal bolt part (17) towards the elastomeric spring element (7), preferably in order to build up a spring element pretension, and in this position a retaining pin (23), preferably a cylindrical pin as retaining pin, is inserted as a holding pin in aligned transverse holes (21) in the upper bolt head part (19) and in an upper region of the longitudinal bolt part (17).

The utility model discloses a plasma skin therapeutic instrument handle mainboard fixing structure provided with a positioning clamping groove, which is characterized in that a fixed needle seat respectively penetrates into a front positioning hole of a front positioning plate and a middle positioning hole of a middle positioning plate through a large positioning column and a small positioning column and is welded and fixed, and a stepped positioning convex plate is arranged at the front end of a circuit board; the positioning convex plate is respectively clamped and positioned with a middle positioning groove of the middle positioning plate and a front positioning groove of the front positioning plate, the fixed needle seat is electrically connected with the output end of the transformer through a copper foil in a middle positioning hole, the middle positioning plate is positioned and mounted in the front positioning clamping groove of the handle through a clamping column, and the rear positioning plate is positioned and mounted in the rear positioning clamping groove of the handle through a convex column. The middle of the rear positioning plate is provided with a jack, and one side of the rear positioning plate is provided with a pin header which is electrically connected with a female header at the rear end of the circuit board. The electrode fixing needle seat and the circuit board are not easy to loosen and move, so that the high-voltage electrode is ensured to uniformly and vertically discharge at the central position of the front end of the operating handle of the skin therapeutic instrument to generate ionization reaction.

This invention relates to a non-metallic compensator insulation layer reset device, comprising a non-metallic skin, left and right guide cylinders, and left and right side plates respectively provided on the outer surfaces of the left and right guide cylinders. The left and right side plates are sealed together by the non-metallic skin, and an insulation layer is filled between the left and right side plates. Multiple fixing pins are provided on the outer surfaces of the left and right guide cylinders, which are inserted into the insulation layer and connected to the left and right guide cylinders respectively. A guide plate is provided at the upper end of the fixing pin, and a guide rod is provided on the guide plate. The guide rod is in close contact with the guide plate and is connected and fixed to the left and right side plates. This invention increases the friction and connection strength between the insulation layer and the left and right guide cylinders through the fixing pins, guide plates, and guide rods, enabling the insulation layer to reset in time during reciprocating motion and preventing the insulation layer from separating and forming heat transfer gaps. Even if a small gap appears between the fixing pin and the insulation layer, the guide plate can block the gap, preventing heat transfer, improving the heat insulation effect, and extending the service life of the product.

The present invention discloses a puller for an electrical connector, comprising: a main frame 1, a three-claw hook 2, a needle 3, a stop pin 5, a spring 6, a needle handle 7, a handle 8, a rotating rod 9, a handle shaft 10, a spring 11, a pin A 12, a stop block 13, a spiral pin 14, a pin B 15, and a hexagon socket screw 16, wherein the main frame 1 carries all the components of the puller, the handle 8 is fixed at one end of the rotating rod 9, the needle handle 7 is located at one end of the needle 3, and when the needle handle 7 is pressed to insert the needle 3 into the pinhole 18 of the electrical connector, the positioning pin 19 of the electrical connector is no longer clamped with the outer shell 21 of the electrical connector, so that the electrical connector is separated from its outer shell 21. The puller for an electrical connector having the above structure has the characteristics of a simple structure, and can easily realize the pulling out and pushing back of the inner core of the electrical connector. Since there is a thread on the outer periphery of the puller, the puller can be rotated into or out of the outer shell of the electrical connector, making it more labor-saving to push and pull out the outer shell of the electrical connector.

The bearing device comprises a bearing 10, which is provided with a first ring 12 and a second ring 14. The device comprises at least one insulating sleeve 26, which is attached to the second ring 14 and provided with a bushing 28 and with an insulating insert 30 made of electrically insulating material. The insulating insert is overmolded onto the second ring 14 and onto at least one of the outer and inner surfaces of the bushing 28 that define its radial thickness. The device further comprises an anti-rotation device 32, which is provided with at least one first retaining pin 42, which is at least partially seated in first slots 34, 40 of the bushing, the insulating insert and the second ring, a carrier 44 to which the first retaining pin is attached, and at least one axial retaining element 46 of the device.

On the base platform (1) there is an electric motor (2) connected using a horizontal central shaft (4) with a circular gravity flywheel (3) provided with retaining pins (10) along its perimeter. On the retaining pin (10) there is a rotary-mounted gravity arm (5) with the centre of gravity outside the retaining pin (10). In the upper dead end of the gravity flywheel (3) there is a tilt mechanism of gravity arms (5) to their working position. In the working position the gravity arms (5) are provided with latching elements, e.g. one-direction bearings by means of which the gravity arms (5) are attached on the retaining pins (10). The equipment has a tilt mechanism of gravity arms (5), consisting e.g. of a gearwheel (13) and a geared rack (14), which turns the gravity arm (5) to the working position.

The utility model discloses a plant tissue culture shelf convenient to adjust, which comprises a moving mechanism, a vertical frame fixedly arranged on the top surface of the moving mechanism, a handrail fixedly arranged on the outer wall of the vertical frame, and a processing assembly arranged above the moving mechanism, the processing assembly comprises an adjusting assembly arranged above the moving mechanism, and the adjusting assembly is arranged above the moving mechanism. When a culture bottle needs to be placed, the placing distance needs to be adjusted according to the size of the culture bottle, a clamping pin is pressed, a second magnetic ring fixedly installed at the end of the clamping pin slides towards the interior of a sliding groove, a handle is pulled, and the handle drives a baffle ring fixedly installed on the outer wall of the handle to compress a spring; at the moment, the sliding rod is not clamped with the hole formed in the outer wall of the vertical frame any more, the height of the bearing plate is adjusted so as to place the culture bottles with different heights, and when the bearing plate is adjusted to a proper position, the clamping pin is pressed, and the sliding rod is inserted into the hole formed in the outer wall of the vertical frame so as to stably support the bearing plate.

An investment cast, stainless steel chain link for use a part of a chain. The chain link includes a pair of spaced first and second sidebars that each extend between forward and rear ends of the chain link. A reinforcing rib is formed on each sidebar and is flush with the forward and rear ends of the chain link. A barrel is formed at the rear end of the sidebars. The forward end of the sidebars includes either a first or a second attachment boss. The first attachment boss includes a pin head receptacle that allows the head of the chain pin to be flush with an outer surface of the first attachment boss. A retaining pin extends through the second attachment boss to prevent axial movement of the chain pin. In one embodiment, the chain pin is rotatable and, in another embodiment, the chain pin is prevented from rotating.

The utility model belongs to the technical field of air detection devices, and particularly relates to a machining tool Z-direction air detection device which comprises a supporting block, a mounting seat, a fixing needle air pressure detection device and a floating head. The supporting block is used for bearing a workpiece, the mounting seat is mounted below the supporting block through a fixing needle, a vertical air channel is fixedly arranged in the mounting seat, the upper end of the air channel extends into the supporting block, the upper end of the air channel is communicated with an air blowing channel, and the other end of the air channel is communicated with an exhaust pipe; and the air pressure detection device is connected with the air channel on the mounting seat through an air pipe. According to the air detection device, the floating head is arranged at the air blowing hole in the top of the air blowing channel, and the floating head is made of the elastic material, so that the air blowing hole can be properly blocked, the top of the air blowing hole is prevented from being blocked, and the normal use of the air detection device is not influenced.

The utility model discloses an anti-retreat structure for a core-pulling insert, which belongs to the technical field of die-casting dies and comprises an anti-retreat oil cylinder positioned on a movable die sleeve plate, a retaining pin connected onto the anti-retreat oil cylinder and the core-pulling insert with a positioning groove, and the head of the retaining pin can be inserted into the positioning groove of the core-pulling insert under the driving of the anti-retreat oil cylinder. The movement direction of the retaining pin is perpendicular to that of the core-pulling insert, and the shape of the head of the retaining pin is matched with that of the positioning groove; a reinforcing plate is further arranged on the side, close to the movable mold, of the core pulling insert, the reinforcing plate is connected to the fixed mold core, and a through hole allowing the retaining pin to pass through is formed in the reinforcing plate. The locking device can be inserted into the core-pulling insert along with the head of the retaining pin to lock the core-pulling insert and limit the movement of the core-pulling insert, has a good locking effect, is small in error in the assembling and working processes, can completely lock the core-pulling, is not easy to reverse the core-pulling, ensures the qualified rate of the product size, and improves the production efficiency. And waste products are reduced.

The invention relates to a drive device (10) for a motor vehicle, comprising: an electric machine (12) comprising a stator (14) and a rotor (16) having a rotor shaft (22); the invention relates to a motor rotor (10) for a motor vehicle, comprising a rotor shaft (22), a gear (24) which is arranged on the rotor shaft (22) and has an internal toothing (26) which meshes with a corresponding external toothing (28) of the rotor shaft (22), so that the gear (24) and the rotor shaft (22) are connected to one another in a rotationally fixed manner, the gear (24) having at least three openings (46) which extend in the axial direction of the rotor shaft (22), during the installation of the gear (24), a corresponding retaining pin (42) can be inserted into the opening, and the retaining pin is used for preventing the rotation of the gear (24). At a free end (E) of the rotor shaft (22), an internal thread (48) arranged concentrically with the rotor shaft (22) is provided in the rotor shaft (22).

A round baler implement includes a forming belt having a first longitudinal end and a second longitudinal end coupled together by a retaining pin to secure the forming belt in an endless loop. An image sensor is positioned and operable to capture an image of the retaining pin. A baler controller receives a current image of the retaining pin from the image sensor and determines a wear condition of the retaining pin therefrom. The baler controller may then communicate a notification signal to a communicator providing the wear condition of the retaining pin, thereby notifying user of the condition of the retaining pin so that the user may decide to replace the retaining pin when necessary.