47results about How to "Simple structure and principle" patented technology

The optical element polishing device comprises a polishing box, an L-shaped support and a motor are installed in the polishing box, a polishing table is installed on the side portion of the L-shaped support, a suction cup is rotatably installed in the polishing table, a suction cup rotating shaft is in butt joint with a motor shaft, and the top of the suction cup is used for installing an optical element. And a lifting electric polishing head is movably mounted at the upper end of the L-shaped bracket. The driving assembly is designed, through intelligent control of a temperature sensor and a U-shaped electromagnetic block, the function that the polishing head automatically and gradually moves towards the center of the optical element along with lowering of the liquid level of cooling liquid is achieved, therefore, the all-directional and uniform polishing effect is ensured, the polishing precision and consistency are improved through the design, and compared with electric driving, the polishing efficiency is greatly improved. Manual intervention is reduced, the structure principle is simple, and the machining efficiency is improved.

The invention relates to the technical field of hollow concrete guardrail installation, in particular to a forklift attachment for carrying and installing a hollow concrete guardrail, which comprises a clamping device, a fork arm carrier connecting frame and a base slidably arranged on the fork arm carrier connecting frame, and a position adjusting mechanism is arranged between the base and the fork arm carrier connecting frame; the clamping device comprises an upper arm, a bearing lower arm and a connecting arm, a connecting part is arranged on one side of the bearing lower arm, the connecting arm and the upper arm are hinged to the upper side and the lower side of the connecting part of the bearing lower arm respectively, the ends, close to the base, of the connecting arm and the upper arm are hinged to the base, and a clamping piece matched with the bearing lower arm is arranged at the end, away from the base, of the upper arm. And a clamping oil cylinder is arranged between the base and the bearing lower arm. According to the clamping device, a parallelogram structure is adopted, so that the structure can achieve clamping movement through stretching and retracting of an oil cylinder, a carrying and mounting scheme is provided for the hollow concrete guardrail, and the stability in the carrying and mounting process is also improved.

The present invention relates to the technical field of instrument housing assembly, and in particular to an assembly device for instrument housing, including a gantry bracket, a pressing cylinder, a pressure plate, a base plate, a positioning tool, a clamping piece, a positioning cylinder and an electrical cabinet, wherein the pressure plate is mounted on the gantry bracket through the pressing cylinder, the gantry bracket is located on both sides of the base plate, the positioning tool is arranged on the base plate, the clamping piece and the positioning cylinder are mounted on the base plate, the gantry bracket is mounted on the electrical cabinet, and the instrument housing is positioned together by the positioning tool and the clamping piece. The present invention does not need to be equipped with an upper mold for mounting a door to carry the upper shell, and the overall structural principle is simple and easy to implement; the present invention is convenient for placing the lower shell of the instrument and taking out the instrument shell after assembly, which greatly improves the assembly efficiency.

The utility model provides an automatic cleaning device for an oven door of a coke oven, which relates to the technical field of coke oven smelting, and comprises an inner frame, an outer frame, an outer frame, an upper cover and a lower cover, the knife rest is movably arranged in the containing space, and a plurality of scrapers used for cleaning the furnace door are arranged on the knife rest; the driving mechanism is arranged on the inner frame, the driving mechanism is connected with the knife rest and drives the knife rest to move back and forth in a cleaning direction, and the multiple scrapers synchronously move along with the knife rest and clean the furnace door. The automatic cleaning device for the oven door of the coke oven can effectively improve the cleaning efficiency of the oven door of the coke oven.

The invention belongs to the technical field of aircraft engine accessory casing structural design, and particularly relates to an aircraft engine accessory casing fuel pump gear shaft spline bearing lubricating structure which comprises an oil passing shaft and an adapter ring. The oil passing shaft is a hollow shaft and is arranged in the end, provided with the gear, of the gear shaft, the end of the gear shaft is sleeved with a bearing, the bearing is located on the outer side of the gear, and a spline is arranged in the other end of the gear shaft. The gear shaft is provided with a plurality of bearing lubricating channels distributed in the circumferential direction, all the bearing lubricating channels are communicated with the portion between the bearing and the gear, and all the bearing lubricating channels incline towards the bearing. The adapter ring sleeves the oil passing shaft and is connected to the inner side of the gear shaft; an annular oil collecting groove is formed in the end portion of the end, facing the spline, of the adapter ring, an annular oil collecting cavity is formed between the adapter ring and the gear shaft, the annular oil collecting groove and the annular oil collecting cavity are communicated through a plurality of oil through holes distributed in the axial direction, and the annular oil collecting cavity is communicated with the bearing lubricating channels.

The invention relates to the technical field of transmission gear shifting testing, and discloses a transmission static gear selecting and shifting performance testing device and a testing method thereof.The transmission static gear selecting and shifting performance testing device comprises a gear selecting assembly, a gear shifting assembly, a detecting assembly and an adjusting assembly.The gear selecting assembly comprises a gear selecting mechanical arm and a first motor, and the gear selecting mechanical arm is fixedly connected with a rotating shaft of the first motor in a sleeving mode; the gear shifting assembly comprises a gear shifting mechanical arm and a second motor, the gear shifting mechanical arm comprises two connecting ends, one end of the gear shifting mechanical arm is fixedly connected with a rotating shaft of the second motor in a sleeved mode, and the other end of the gear shifting mechanical arm is fixedly connected with a gear shifting shaft in the transmission in a sleeved mode. The detection assembly comprises a first encoder, a second encoder, a first force sensor and a second force sensor, the first force sensor and the second force sensor are connected with the gear selecting mechanical arm and the gear shifting mechanical arm respectively, and the adjusting assembly comprises two adjusting seats which are connected with the gear selecting mechanical arm and the gear shifting mechanical arm respectively. The static gear selecting and shifting performance testing device is simple in structure, high in adaptability and low in cost, and comprehensive and objective static gear selecting and shifting performance results of the transmission can be obtained.

The present invention discloses a positioning structure for a stiffened steel plate shear wall panel and an installation method thereof, the structure comprising a positioning alarm device for positioning the shear wall panel, an adjustable support device, a vertical detection device, and a wall panel clamping device, a plurality of touch alarm positioning blocks of the positioning alarm device are respectively arranged at positions deviating from the installation position of the floor panel when the shear wall panel is hoisted, the adjustable support device comprises a tension rod and two movable arms respectively hinged with the shear wall panel and the floor panel, and the vertical detection device checks the vertical state by emitting a laser line to see whether it is emitted through a designated outlet of a prism reflection device. The beneficial effects of the present invention are: simple structure, wide application range, low cost, high manufacturing precision, etc., and successfully solves the problem of deviation in alignment and verticality during the manufacturing and installation of wall panels due to the structural characteristics of assembled box plate steel structure buildings.

The utility model discloses a power grid transformer station GIS pipeline expansion joint deformation alarm scale, which belongs to the transformer station maintenance technical field, and comprises a slide resistance scale, a vernier connecting rod, a vernier slide block and an alarm mechanism, the alarm mechanism comprises an alarm mechanism housing, a power supply and a buzzer alarm; the sliding resistance scale is a conductive scale with uniform resistance values, the sliding resistance scale is sleeved with a slidable vernier sliding block, the vernier sliding block is connected to an alarm mechanism shell through a vernier connecting rod, and the alarm mechanism shell is fixedly installed on a flange on one side of the telescopic joint in an insulated mode; one end of the sliding resistance scale is fixedly installed on the flange on the other side of the expansion joint in an insulated mode, and the other end of the sliding resistance scale is sequentially connected with the power source, the buzzer alarm and the vernier sliding block through leads to form an alarm loop. According to the utility model, the alarm loop is constructed, the current of the loop changes with the deformation of the expansion joint, the alarm is given according to the current change value, the overall structure principle is simple, and the function is convenient to realize.

The invention discloses an anti-falling feeding equipment for heating tube processing, comprising a machine base and a pipe feeding rack, wherein an inspection door is arranged at the left end of the machine base, and the inspection door is hinged to the left end of the machine base; a control console is arranged at the center of the top of the machine base, and the control console is fixedly connected to the center of the top of the machine base by screws; a control panel is arranged at the top of the control console, and the control panel is electrically connected to the top of the control console; the bottom of the pipe feeding rack is fixedly connected to the ground at the left side of the machine base; a ground foot is arranged at the bottom end of the pipe feeding rack, and the ground foot is fixedly connected to the bottom end of the pipe feeding rack by screws; the pipe feeding rack of the heating tube feeding equipment guides the heating tube to slide down through an inclined smooth strip and a downward guide tube, and notches are arranged at both ends, and the right end of the heating tube will protrude from the machine frame through the notch and extend into the top of the conveying device, and the clamp moves to the right end of the heating tube through a guide rail, clamps the heating tube after being in place, and draws out and conveys the heating tube through the guide rail, and the equipment can be regulated by the control console, and can effectively prevent the heating tube from falling off while having a high degree of automation.

The utility model relates to the technical field of flue gas denitration, in particular to an automatic ozone adjusting and feeding device for flue gas denitration. The automatic ozone adjusting and feeding device for flue gas denitration comprises a flue gas denitration tank and an electric telescopic rod, a first through hole and a second through hole are formed in the left side of the flue gas denitration tank in a penetrating mode, a gas inlet pipe is arranged in the first through hole, an exhaust groove is formed in the right side of the top of the gas inlet pipe, and a gas outlet pipe is arranged in the exhaust groove. A sliding plate is arranged on the right side of the telescopic end of the electric telescopic rod, a high-temperature-resistant sealing gasket is arranged at the bottom of the sliding plate, the bottom of the high-temperature-resistant sealing gasket is attached to the top of the gas inlet pipe, and the sliding plate is driven by the electric telescopic rod to move left and right; and when the high-temperature-resistant sealing gasket moves, the opening size of the exhaust groove can be changed, so that the ozone discharge amount and the discharge pressure can be automatically adjusted.

The application discloses a self-adaptive bolt fastening head, which comprises a fastening motor, a fastening rod arranged on an output shaft of the fastening motor, a fastening sleeve coaxially arranged on the fastening rod, a clamping arm hingedly arranged on the fastening sleeve, and a clamping arm sleeve arranged outside the fastening sleeve, wherein when the fastening sleeve moves axially towards the inside of the clamping arm sleeve, the clamping arm sleeve can press the outside of the clamping arm to make the first end of the clamping arm swing towards the inside, and when the fastening sleeve moves axially towards the outside of the clamping arm sleeve, the first end of the clamping arm swings towards the outside. The self-adaptive bolt fastening head has the advantages that the clamping arm can be adapted to the re-tightening operation of bolts of different specifications through the expansion and contraction of the clamping arm, the self-adaptive bolt fastening head has strong adaptability, and the self-adaptive bolt fastening head is suitable for a wide range of applications.

The utility model provides a mine filling material pumping pipeline resistance-increasing pressure-regulating device which comprises a pumping pipe, a spiral conveying plate and a driving assembly, the pumping pipe comprises a feeding pipe, a discharging pipe and a horizontal conveying pipe, the left end of the horizontal conveying pipe is provided with a connecting shaft, the right end of the horizontal conveying pipe is connected with the discharging pipe, and the feeding pipe is connected to the upper side of the left end of the horizontal conveying pipe. The spiral conveying plate is arranged in the horizontal conveying pipe, one end of the spiral conveying plate is connected with the driving assembly through a connecting shaft, the other end of the spiral conveying plate is vacant, the driving assembly comprises a variable frequency motor and an electromagnetic brake, the input end of the variable frequency motor is sequentially connected with a reversing switch and a variable frequency controller, and the output end of the variable frequency motor is connected with the planetary reducer through a coupler. The output end of the planetary reducer is connected with the connecting shaft, and a brake disc of the electromagnetic brake is installed on the connecting shaft. According to the filling material pumping pipeline resistance increasing and pressure regulating device, the spiral conveying plate is controlled to rotate through the combination of the electromagnetic brake and the variable frequency motor, braking resistance is generated in the speed direction of filling materials, and resistance increasing and pressure regulating of the filling materials are achieved.

The utility model discloses a water pump of a novel oral irrigator, which comprises a pump body, an elastic pump membrane movably arranged in the pump body, a driving device used for driving the elastic pump membrane to reciprocate in the pump body, and a driving rod connected with the driving device and the elastic pump membrane, an umbrella-shaped valve used for one-way circulation is arranged between the water inlet cavity and the water outlet cavity, and a water inlet valve block used for one-way circulation is arranged at a water inlet of the water inlet cavity. A traditional piston is replaced with the elastic pump membrane, reciprocating motion of the piston is replaced with elastic stretching and compression of the elastic pump membrane, the tightness of the structure can be greatly improved, larger pressure can be generated, frictional wear cannot be generated, water leakage cannot occur after long-term work, and the service life is greatly prolonged.

The utility model relates to the field of slope protection detection, in particular to a slope protection vegetation rhizome depth detection device which comprises a leveling plate, the leveling plate is a metal plate, a round through hole is formed in the middle of the leveling plate, a stand column is fixed to one side of the round through hole, a limiting block is arranged in the middle of the round through hole, and an endoscopic tube is fixed to the bottom of the round through hole. An endoscopic rod which is fixed through a gear and a limiting block and moves up and down along with rotation of the gear is arranged in the endoscopic tube, the endoscopic rod comprises a slender rod, a bulb, a reflector and a bulb switch, the bulb switch is fixed to the top of the slender rod, a rotating shaft is fixedly arranged at the bottom end of the slender rod and connected with the reflector, and the reflector freely rotates by an angle through the rotating shaft; a bulb is fixed at the middle lower part of the slender rod. According to the utility model, the root planting depth of slope protection vegetation can be accurately tested, and the influence on plant survival, vegetation integrity and slope stability is small.

The breaking hammer comprises a hammer core, a shell and a support, the hammer core comprises an upper cylinder body assembly, a middle cylinder body assembly, a lower cylinder body assembly, penetrating bolts and a drill rod, the upper cylinder body assembly, the middle cylinder body assembly and the lower cylinder body assembly are connected into a whole through the penetrating bolts, and the drill rod is installed on the lower portion of the lower cylinder body assembly; the shell comprises a side plate assembly and a cover plate, a shell structure is defined by the side plate assembly and the cover plate, and a clamping block and a clamping plate are arranged on the side plate assembly; the support comprises a bottom plate, two side plates are arranged on the bottom plate, a rotary oil cylinder assembly is arranged between the two side plates, a lug plate assembly is arranged on the rotary oil cylinder assembly, and the lug plate assembly is connected with a main machine for prying operation through a first pin shaft. According to the invention, a torsion function is added, the device has relatively large penetrating power, but impact force is relatively small, a loose falling object can rapidly fall off, a firm object is not broken, the stripping speed is high, and 360-degree prying operation can be realized.

This utility model discloses a novel locking pop-out structure, relating to the technical field of locking buckle structures. The utility model includes a frame and a filter bottle disposed within the frame, and further includes: an unlocking pop-out part disposed on the frame for popping out the filter bottle; and a locking part installed on the frame and the filter bottle for fixing the filter bottle to the frame. The unlocking pop-out part automatically pops the filter bottle out of the frame after unlocking the locking part. The unlocking pop-out part includes an unlocking component disposed on the front side of the frame. This utility model, by incorporating an unlocking pop-out part, solves the problem of existing locking pop-out structures requiring the filter bottle to be rotated in the opposite direction during unlocking. The filter bottle rotates relative to the rotating mechanism at the bottom of the frame, and because of the sealing ring, rotation is laborious, wasting operator effort and affecting filter bottle replacement efficiency.

The embodiment of the utility model provides a sample rack scheduling mechanism and sample analyzer, including mounting rack, moving subassembly and fitting piece, moving subassembly is provided on the mounting rack, moving subassembly includes drive piece and eccentric piece, drive piece is provided on the mounting rack, eccentric piece and drive piece output end non-coaxial arrangement, the fitting piece is provided with mounting groove, the mounting groove is equipped with the eccentric piece, the eccentric piece is equipped with the mounting groove. The eccentric part is inserted into the mounting groove in a sliding manner, and the mounting groove is in a runway shape; the driving part is used for driving the matching part to move between a first working position and a second working position through the eccentric part, the matching part can be matched with the sample frame at the first working position, and the matching part can be released from the sample frame at the second working position. According to the sample frame dispatching mechanism, the moving assembly is adopted to drive the matching piece to be connected with or separated from the sample frame, the capacity of driving the sample frame to move is achieved under the condition that the matching piece is connected with the sample frame, the structural principle is simple, cost is low, and the working process is stable.

The invention discloses a portable telescopic anchor observing device which comprises a telescopic rod body, and a rotatable double-sided reflective mirror is arranged at the end of the telescopic rod body. The anchor observing device is convenient to use, can be held by hand, can be operated by standing at a proper safe position of a gunwale, can be used at night and can fix a mobile phone and the like for photographing or video recording. The length of the anchor observing device can be adjusted in a telescopic mode. According to the device, the safety in the anchoring operation observation process can be improved, the observation flexibility and convenience are improved, the problem that anchor observation of part of ships is difficult is solved, and use and storage are convenient to achieve. The portable telescopic anchor observing device provided by the invention is relatively light in total weight, simple in structural principle, relatively high in reliability, convenient to use, high in applicability, high in safety and wide in application, can solve the observing problem in the anchoring process of a specific ship, does not influence ship operation, does not occupy the deck area at the deck of anchor equipment, and is convenient to use. And the safety and the economical efficiency of the ship are improved.

The invention discloses a box packaging forming device, wherein an annular guide rail protrusion and a supporting driving device are fixed on the top of a workbench, a center cylinder and a turntable are arranged on the top of the supporting driving device, a cam is fixed on the bottom end of the center cylinder, an annular guide rail groove is arranged on the side surface of the center cylinder, eight bosses are evenly arranged around the turntable, a connecting rod pressing mechanism is arranged on the top of a workpiece seat, a horizontal push block pressing mechanism is arranged on one side of the workpiece seat, and a vertical push block pressing mechanism is arranged on the bottom of the boss, the workpiece is carried by eight identical toolings to rotate with the turntable for one circle, and the paper box is processed and formed once through eight working procedures of folding outer edges, holding pressure, folding ears, holding pressure, folding upper sides, holding pressure, folding lower sides and holding pressure in sequence, the whole device has a flexible driving mode and a simple structural principle, and has the characteristics of continuous production process and high productivity of the assembly line production mode, and each tooling is also independent of each other, and the processed workpieces do not interfere with each other.

The utility model provides a kind of sintering round roller automatic material cleaning device, for cleaning sintering round roller, comprising: fixed mechanism;Connecting mechanism, one end of connecting mechanism is rotatably connected with fixed mechanism;Cleaning mechanism, the other end of connecting mechanism is connected with cleaning mechanism, and cleaning mechanism is located in the side of connecting mechanism close to sintering round roller;Counterweight mechanism, counterweight mechanism is connected with connecting mechanism;Wherein, counterweight mechanism can be under the action of gravity traction connecting mechanism to make cleaning mechanism and the surface of sintering round roller contact, the utility model structure principle is simple, installation is easy to make, realizes the quick removal sintering round roller corner's stick material, accumulated material, heap material, can adjust counterweight block according to the incoming material and stick material condition of sintering round roller. Reach best cleaning effect. To improve the quality and output of sinter, reduce the labor intensity of operator and maintenance personnel in harsh environment metallurgical equipment, eliminate the security risks brought by operation and maintenance.

The utility model discloses a steel structure fixing support for a wave-shaped PTFE membrane structure. The steel structure fixing support comprises an arc-shaped frame, a connecting frame, a fixing assembly and a PTFE membrane connecting piece. Each arc-shaped frame is of an arc-shaped structure, the number of the arc-shaped frames is multiple, and the multiple arc-shaped frames are arranged in a wave-shaped structure; every two adjacent arc-shaped frames are fixedly connected through a connecting frame. The arc-shaped frame is fixed to the foundation steel beam through the fixing assembly. PTFE membrane connecting pieces are mounted on the arc-shaped frame and the connecting frame, and are used for fixing PTFE membranes. The arc-shaped frames are fixed to the foundation steel beam through the fixing assemblies, the adjacent arc-shaped frames are connected through the connecting frames, the PTFE film connecting pieces are arranged on the arc-shaped frames and the connecting frames, the designed structure principle is simple, the PTFE film structure in the wave shape can be conveniently installed on the outer vertical face of a building, the construction difficulty is lowered, and the construction efficiency is improved.

The invention provides a negative pressure jet flow sand washing and bailing device and method. The negative pressure jet flow sand washing and bailing device mainly comprises a drilling pump, a drilling rod, a packer, a double-wall drilling rod, a sand bailing cylinder body, a negative pressure generator body and a sand disturbing head body; a drill rod is connected with a double-wall drill rod inner pipe through threads, the double-wall drill rod and a shaft annulus are sealed and separated through a packer, power liquid enters a double-wall drill rod annulus channel through the packer, the double-wall drill rod inner pipe is a reverse liquid outlet channel, and flowing liquid enters a sand disturbing head body high-pressure cavity through a sand bailing cylinder body annulus channel and a negative pressure generator body annulus channel. When the fluid passes through the high-pressure cavity of the sand washing head body, most of the fluid is jetted upwards at a high speed through the jet flow nozzle, a vacuum low-pressure area is formed, and the fluid flows out of a wellhead through the inner pipe of the double-wall drill rod and the drill rod. The sand bailing device is simple in structural principle and high in sand bailing efficiency, the pressure of a bottom hole flow field during sand bailing operation can be reduced, and leakage and pollution to a production layer during sand bailing operation are reduced.

The utility model relates to the technical field of bamboo product production, in particular to bamboo chip thin cutting equipment which comprises a placing table, the placing table is fixed to an adjustable support through bolts, a placing groove is formed in the placing table, a supporting seat is arranged below the placing groove, and a cutting knife is arranged on the right side of the lower end face of the placing table. A cutting edge is machined at the left end of the cutting knife, the cutting knife is installed in a fixing groove of a fixing block in a left-right sliding mode, and the fixing block is welded and fixed to the lower end face of the containing table. A top block is further arranged on the lower end face of the cutting knife, and the right end of the cutting knife is in driving connection with a driving piece. The device is simple in structural principle, low in manufacturing cost, capable of achieving continuous thinning cutting of raw bamboos into bamboo joints, convenient to recycle after cutting is completed, and high in practicability.

The invention discloses a venetian blind winding device which comprises a curtain box upper beam, and a rope winding head used for being connected with curtain pull beads, a rope winder connected with venetian blind blades and a descent control device playing a role in slowly descending the curtain blades are sequentially installed in the curtain box upper beam from right to left. The end of the rope winding head is connected with a winding connecting rod with the rectangular section, and the winding connecting rod sequentially penetrates through the rope winder and the descent control device. The device has the beneficial effects that the device is simple in structure, convenient to assemble, simple and convenient to operate and good in use function effect.

The utility model discloses a device for detecting the temperature of an asphalt mixture in an auxiliary hopper of a mobile material conveyor, which comprises a telescopic structure, the telescopic structure comprises a longitudinal telescopic steel pipe, the upper end of the longitudinal telescopic steel pipe is connected with a first horizontal steel pipe, and one end, far away from the longitudinal telescopic steel pipe, of the first horizontal steel pipe is connected with a second horizontal steel pipe; a vertical first longitudinal steel pipe is connected to the joint of the first horizontal steel pipe and the second horizontal steel pipe, a third horizontal steel pipe is connected to the lower end of the longitudinal telescopic steel pipe, and a reflector unit used for observing the temperature is arranged on the side wall, opposite to the third horizontal steel pipe, of the first longitudinal steel pipe. The device for detecting the temperature of the asphalt mixture in the auxiliary hopper of the mobile material conveyor is simple in structural principle, flexible to operate, reliable in result, high in detection efficiency and good in safety, and is mainly used for detecting the temperature segregation condition of the asphalt mixture which is conveyed into the auxiliary hopper after being stirred by the mobile material conveyor.

The utility model discloses a liquid level detection structure of a floor brush water tank, which comprises a floor brush main body, a sewage tank and a liquid level detection structure, a containing cavity communicated with sewage is arranged in the sewage tank, and the liquid level detection structure comprises a floater arranged in the containing cavity in a floating manner, a magnet and an alarm which are arranged in the floater, and a fixed magnet fixed at the bottom of the containing cavity. The floor brush has the water tank water level real-time detection and alarm functions, so that when the floor brush is used and the water level is high, the two magnets and the floater are matched with the pressure sensor of the alarm to carry out real-time water level feedback and give an alarm to inform and remind a user of the water level condition, and normal and efficient use of the floor brush is guaranteed. The structure principle is simple, feedback is accurate, and the use requirements of different users can be met.

The invention belongs to the technical field of internal mixers, and discloses a novel oil injection valve device. Comprising a valve body, a valve rod, a copper sleeve, a spring, a cover and a plug screw. The valve rod is positioned in the valve body; the copper sleeve is arranged between the valve rod and the valve body, is sleeved on the valve rod and plays a role in supporting and guiding the valve body; one end of the valve rod is in a protruding shape, and the spring is located between one end of the valve rod and the copper sleeve. One end of the valve body is tightly attached to the valve rod, and the other end is in threaded connection with the mounting cover; the thread on the cover end side is provided with an oil injection port; the screw plug is mounted on the oil injection valve; and the thread on the cover is directly connected with an oil pipe of an upper auxiliary machine of the internal mixer. According to the novel oil injection valve device designed by the invention, the structural size is greatly reduced, and the cost is reduced. The structure principle is simple, and use is convenient.

This utility model discloses a barrel picking and placing device for a large barrel palletizing machine, belonging to the field of automated logistics and warehousing technology. The bracket and the slider are fixedly connected, and the slider is slidably connected to the guide rail. A cylinder is symmetrically installed on the bottom of the fixed plate two, and fixed ear rings are symmetrically installed on three sides of the fixed plate three. A swing rod is folded and installed inside the fixed ear rings. A hook rod is installed on the outer side of one end of the swing rod, and a cylinder is installed on the outer side of the fixed frame two. The swing rod and the hook rod are opened and closed by the swing rod. The output end of the swing rod and the cylinder two are folded and connected by a pin. The other end of the swing rod is connected to the hook rod by the pin two. The two sides of the bottom clamping hook tighten to straighten the large or small barrel. After straightening, the cylinder performs a telescopic action to drive the swing rod to close the hook rod. The closed hook clamps the barrel and can pick up the barrels in a row, realizing the function of picking up barrels. The barrels of different sizes and diameters can be picked up by adjusting the fixed frame on the profile.

This utility model discloses a portable double-protection single-lock pistol quick-draw holster structure, including a quick-draw holster with a buttlock latch hinged to it. A release button is hinged to the bottom of the quick-draw holster, and the release button has an actuating end and a controlling end. The buttlock latch has an extension arm with a recessed area. The actuating end of the release button is used to engage with the recessed area on the buttlock latch for positioning. A trigger guard latch is hinged to the quick-draw holster, and the quick-draw holster has a trigger guard latch spring. One end of the trigger guard latch has a limiting hook, and the other end contacts the trigger guard latch spring. The limiting hook has a hook surface for holding the trigger guard. The arm containing the actuating end of the release button has a release ramp for pressing down the trigger guard latch corresponding to the trigger guard latch spring. This utility model has high structural reliability and strong practicality.