35results about How to "Free rotation" patented technology

The utility model provides a swing water outlet device. The swing water outlet device comprises a shell part, a water outlet part and a swing part. The shell part is provided with a water inlet channel and a water outlet nozzle communicated with the water inlet channel; the water outlet piece is arranged on the water inlet channel and used for outputting water flow along a specified path; the swinging piece is connected to the water outlet nozzle, and the swinging piece correspondingly and freely drives the water outlet nozzle to relatively swing after receiving the output water flow so as to form dynamic water spray outlet; the swing part is constructed to be of a rotary disc structure, a moving space suitable for flexible rotation of the rotary disc structure is arranged in the shell part, and when water is not discharged for use, the rotary disc structure can keep a balance state relatively adaptive to gravity in the moving space. According to the invention, the flexible self-adaption can be realized no matter in any posture for grabbing and using, the water flow can be quickly responded and the swinging effect can be generated as required, and the dynamic balance gravity downward deflection can be kept when the water flow stops, so that the stability can be kept in a non-working state, and the risk of accidental shaking or inclination can be reduced.

The utility model relates to a conductive hinge which comprises a movable hinge, a static hinge, a conductive ring shaft and a conductive auxiliary brush, the movable hinge is arranged on a cabinet door, the static hinge is arranged on a cabinet body, the conductive ring shaft comprises a first section and a second section, the first section is rotationally connected with the static hinge, and the second section is rotationally connected with the movable hinge, so that the static hinge is hinged to the movable hinge. The conductive auxiliary brush is rotatably and electrically connected with the second section. The conductive hinge is provided with the conductive auxiliary brush which is rotationally connected with the second section of the conductive ring shaft and is internally and electrically connected with the second section of the conductive ring shaft, so that the problem of wire passing between an electrical cabinet body and a cabinet door is solved, a cable is prevented from directly rotating in the hinge, and the problem that a cable protection layer is easy to damage after long-term use of the exposed cable is avoided. And subsequent updating and daily maintenance are not convenient, so that the purposes of protecting the cable and reducing the wiring difficulty are achieved.

The invention discloses duck tongue production and processing equipment, and relates to the technical field of duck tongue production and processing, the duck tongue production and processing equipment comprises an equipment main body, and further comprises a first cleaning assembly, a second cleaning assembly and an adjusting assembly, the second cleaning assembly comprises multiple sets of cleaning rollers rotationally arranged in the inner cavity of the equipment body, multiple cleaning pieces are evenly fixed to the outer wall of each set of cleaning rollers in the axial direction and the circumferential direction, and the adjusting assembly comprises a water absorption piece and an adjusting piece which are arranged at the bottom of the inner cavity of the equipment body. According to the duck tongue cleaning device, when duck tongues are cleaned, the distance between brushes of each group of cleaning rollers is changed, so that extrusion and friction force borne by the duck tongues are relatively small, the risk that the epidermis of the duck tongues is damaged or tissues of the duck tongues are damaged is reduced, the duck tongues are prevented from being damaged and lost when the duck tongues are excessively cleaned, the integrity of the duck tongues can be better kept, and the duck tongues can be cleaned more effectively. And a more uniform cleaning effect is achieved.

The utility model discloses a Hall current sensor, which comprises a sensor main body, a connecting shaft is vertically fixed at the bottom of the sensor main body, a sensor supporting seat is arranged at the bottom of the connecting shaft, a spring is sleeved on the connecting shaft, and the spring is arranged between the sensor main body and the sensor supporting seat. A bevel gear is fixed to the lower portion of the connecting shaft, and a meshing groove matched with the bevel gear is formed in the middle of the bottom of the sensor supporting base. According to the utility model, when the sensor main body needs to be rotated, the sensor main body needs to be pressed down firstly, so that the bevel gear on the connecting shaft is separated from the bottom of the meshing groove, and when the rotation is completed and the sensor main body is loosened, the spring pushes the connecting shaft to slide upwards, so that the bevel gear enters the meshing groove again, and then the locking is completed. According to the utility model, the angle adjustment of the sensor main body is simpler and more effective.

The anti-winding power construction pay-off device for power construction comprises a first pay-off base and a second pay-off base, a first pay-off side plate and a second pay-off side plate are installed on the surface of the first pay-off base and the surface of the second pay-off base correspondingly, and the first pay-off side plate and the second pay-off side plate are oppositely arranged; the side, close to the second paying-off side plate, of the first paying-off side plate is rotationally connected with a retention ratchet gear, the surface of the retention ratchet gear is fixedly connected with a middle shaft barrel, and the side, close to the first paying-off side plate, of the second paying-off side plate is rotationally connected with a rotating disc; by arranging the retention ratchet wheel and the ratchet stop block, the pay-off device can only rotate in one direction in a natural state, the situation that in the pay-off process, due to sudden wire breaking, a wire coil rotates reversely in an inertia state, the wire coil is loosened, and a wire is wound is avoided, and by means of the design, the wire can be prevented from being wound, and the service life of the pay-off device is prolonged. The take-up and pay-off functions of the pay-off device are better utilized, and the ratchet stop block is movably arranged, so that the retention ratchet wheel can rotate freely.

The utility model discloses a drawing head capable of discharging liquid soap, which comprises a body, a water passing channel and a water outlet hole which are matched with each other are arranged on the body, a liquid soap channel and a liquid soap outlet which are matched with each other are further arranged on the body, and a first one-way valve and a second one-way valve which are matched with each other are arranged on the liquid soap channel. The body is further provided with a pressure cavity, the pressure cavity can be communicated with a soap liquid channel located between the first one-way valve and the second one-way valve, a button with one end capable of being located outside the body is arranged in the pressure cavity, a spring is arranged between the button and the body, and the first one-way valve can be driven to be opened by pressing the button. The multifunctional soap dispenser can be a kitchen faucet, the soap dispensing function is integrated into the drawing head, the space of a table top is saved, and meanwhile the use requirements of consumers are met.

The utility model discloses a dressing change device for wound nursing, which relates to the technical field of wound dressing change and comprises an upper-layer fixed medicine tray and a movable medicine tray, a lower-layer fixed medicine tray is arranged below the upper-layer fixed medicine tray for temporarily storing medicines, and the upper-layer fixed medicine tray and the lower-layer fixed medicine tray are both fixedly connected with a support through bolts; when dressing change is carried out on a wound of a patient, a medical worker can carry out the medicine pretreatment process on the working table, and meanwhile the shadowless table lamp is arranged on the working table, so that the medical worker can observe the medicine more clearly; when dressing change is carried out on a patient, medical waste can be temporarily placed on the tray, changed upper limbs and lower limbs can be fixed through the two limb fixing plates, when the lower limbs are fixed, the height can be adjusted through the electric push rod, and meanwhile the medical waste can be placed on the tray according to the sitting posture habit of the patient. The different directions of the limb fixing plate are changed through the universal joint, and dressing change treatment is conducted on a patient.

The utility model discloses a novel universal shaft assembly, including bottom plate, be provided with fixed subassembly on the bottom plate, the fixed subassembly includes mounting seat, fixed base, bolt, first axle body and second axle body, the mounting seat fixed mounting is at the both ends of bottom plate's top, the fixed base can be detached and installed on the mounting seat, the bolt can be detached and installed between fixed base and mounting seat, first axle body and second axle body are placed on the mounting seat respectively, be provided with disassembly subassembly on the fixed base, the disassembly subassembly includes oil injection pipe, connecting pipe and resist the pole, oil injection pipe fixed mounting is on the fixed base, connecting pipe fixed mounting is on the oil injection pipe, resist the pole sliding connection on the connecting pipe, to solve the background art mentioned in the installation fixed time of current universal shaft, although the traditional method can ensure the firmness of universal shaft, when universal shaft needs to maintain or replace, the more complicated technical problem.

This invention provides a measuring cup with a lid, comprising: a cup body, a lid, and a handle. The cup body is also provided with graduation marks. It further includes: a snap-fit ​​structure, comprising a first snap-fit ​​element disposed on the edge of the lid and a second snap-fit ​​element disposed on the cup body, the first and second snap-fit ​​elements being releasably engaged; a lid-opening button disposed on the lid and located outside the lid edge near the handle; a movable connecting structure, one end of which is connected to the lid-opening button, and the other end of which is connected to the handle, to be linked with the lid-opening button, so that the lid can open and close as the lid-opening button moves, and remain at any position between a first position on the lid and a second position at the maximum opening; a guide edge is also provided on the inner edge of the lid: the guide edge extends along the inner surface edge of the lid from both sides of the lid-opening button, and the height of the guide edge gradually increases in the direction away from the lid-opening button; a groove is formed between the edge of the lid and the guide edge; and a sealing ring is disposed in the groove.

The utility model belongs to the technical field of lifting chairs, and particularly relates to a lifting mechanism and a lifting chair, the lifting mechanism comprises a lifting assembly for the lifting chair, the lifting assembly for the lifting chair comprises a first lifting supporting leg, the side of the first lifting supporting leg is rotatably connected with a height adjusting handle, the end part of the height adjusting handle is integrally connected with a transmission worm, and the transmission worm is connected with a transmission shaft. The other end of the transmission worm is integrally connected with a supporting rotating shaft, the side of the transmission worm is meshed with a transmission worm gear, a first bearing is arranged at the bottom of the transmission worm gear, and the inner wall of the transmission worm gear is integrally connected with a lifting lead screw. The lifting of the seat is realized by utilizing the transmission of the worm gear and the worm and the matching of the lead screw structure, the stability is higher, the use is convenient, and meanwhile, the backrest adjusting assembly is convenient to adjust according to users with different body types, so that the supporting force can be provided for the waist of the user, and the comfort is improved.

The utility model relates to the technical field of head-mounted intelligent equipment, and discloses a gravity compensation mechanism adaptive to head-mounted equipment and a head-mounted intelligent device. The utility model provides a gravity compensation mechanism adapted to a head-mounted intelligent device, comprising a first support member fixed on the body of a user or on an object around the user; the second supporting piece is relatively movably connected with the first supporting piece and is matched with the first supporting piece to provide supporting force for overcoming gravity for the head-mounted intelligent equipment; the driving unit is arranged between the first supporting piece and the second supporting piece or arranged on the second supporting piece; according to the rotation trend of the head of the user in the vertical direction, the driving force in the vertical direction is provided for the head-mounted intelligent equipment, so that the problem of poor use experience such as head and face discomfort and cervical vertebra ache caused by long-term wearing of the head-mounted intelligent equipment is solved, the use experience of the user on the head-mounted intelligent equipment is improved, and the user experience is improved. And popularization and application of the head-mounted intelligent equipment are facilitated.

This invention belongs to the field of bipolar plate testing technology, specifically an automatic perforation testing device for hydrogen production bipolar plates. It includes a support base with an adjustable height frame on top; a load-bearing device on top of the adjustable height frame for holding the bipolar plate; and a rotating component located at the axis on the upper surface of the load-bearing device for twisting the bipolar plate. The load-bearing device includes a metal frame with fixing rods evenly inserted into its inner wall. This device can replace manual testing. Through a scanning component at fixed points, it twists the clamped and rotating bipolar plate, thereby detecting the flatness of the perforations on the outer surface of the bipolar plate. To ensure accuracy, the rotation speed and number of rotations of the bipolar plate can be controlled, ensuring the scanning component can perform a comprehensive inspection of the bipolar plate and avoiding missed or incorrect measurements.

The utility model relates to the technical field of communication modules, in particular to an extensible industrial communication module which comprises a first installation assembly, a second installation assembly, a communication assembly and a plurality of supporting assemblies, each supporting assembly is fixedly connected with the first installation assembly, and the first installation assembly is connected with the second installation assembly in a sliding mode. The communication assembly comprises a main communication seat, a main communication block, an expansion communication seat and an expansion communication block, the expansion communication block is detachably connected with the expansion communication seat, the expansion communication seat is detachably connected with the second mounting assembly, the main communication block is detachably connected with the main communication seat, and the main communication seat is detachably connected with the second mounting assembly. The expansion communication seat and the expansion communication block which are arranged at present relieve the working pressure of the main communication seat and the main communication block, the design structure is simple, and the problems that the communication module main body intelligently carries out single communication, expansion communication cannot be carried out, and the effect is limited in the actual use process are solved.

The invention relates to a copper-plated spiral winding structure for a high-temperature superconducting strip, which comprises a bottom plate, a rolling shaft, a guide wheel and an end cover, and is characterized in that one end of the rolling shaft is rotationally arranged on the bottom plate; the guide wheels are arranged on the outer side of the rolling shaft in series and operate independently, and an end cover is arranged at the other end of the rolling shaft and used for limiting the guide wheels installed on the rolling shaft. The guide wheel can independently and freely rotate on the rolling shaft, the rolling shaft also rotates, friction and resistance between the strip and the guide wheel are reduced, the strip is allowed to move more freely in the winding process, it is ensured that tension of the strip is kept consistent in the winding process, deformation or breakage of the superconducting strip caused by too large tension is avoided, and the superconducting strip winding efficiency is improved. The risk of product damage is reduced, the manufacturing quality and reliability of the superconducting tape are improved, the production cost is reduced, and the efficiency of the copper plating process is improved.

The present invention discloses an automatic assembly machine for a plug-in rod wheel, comprising an assembly slide, an automatic plug-in rod feeding component, an automatic bracket feeding assembly component, an automatic material shifting component, a bracket riveting component, a roller automatic feeding component and a roller automatic riveting component; the automatic plug-in rod feeding component is used to grab and place the plug-in rod parts on the assembly slide, the automatic bracket feeding assembly component is used to grab and assemble the bracket parts into the plug-in rod parts on the assembly slide, the automatic material shifting component is used to sequentially transfer the parts placed on the assembly slide to the next step, the bracket riveting component is used to rivet the bracket and the plug-in rod parts together, the roller automatic feeding component is used to assemble the roller parts conveyed by the conveying device onto the bracket, the roller automatic riveting component is used to rivet the bracket and the roller parts together, and the plug-in rod wheel after riveting is moved and output by the automatic material shifting component. The present invention can efficiently and automatically complete the assembly of the plug-in rod wheel, with high assembly efficiency and stable and consistent assembly quality.

The utility model discloses a brake input device, brake system and vehicle, brake input device includes: cylinder body subassembly, piston, input rod, stop piece, the piston is movably provided in the cylinder body subassembly, the axial both ends of input rod are respectively first end and second end, the stop piece is located in the first end, the stop piece is located in the second end. The first end of the input rod extends into the cylinder body assembly and is matched with the piston; the stop piece is arranged on the piston and used for limiting the input rod to move in the direction where the input rod is disengaged from the piston. According to the brake input equipment disclosed by the embodiment of the utility model, the stop piece is arranged on the piston, so that the piston can be prevented from being separated from the cylinder body assembly when the piston moves relative to the cylinder body assembly, the free rotation of the input rod relative to the piston and the stop piece can be ensured, and the abrasion caused by the friction between the stop piece and the piston is effectively avoided; and the service life of the brake input equipment is prolonged.

The invention relates to a trunk lid latch device and a vehicle equipped with the trunk lid latch device. The trunk lid latch device comprises a bracket; a claw assembly; the pawl assembly can lock the clamping jaw assembly and is provided with a pushing rod; the damper is provided with a first locking surface and a second locking surface; the sliding component is provided with a third locking face and a fourth locking face, the sliding component is provided with a first containing groove, and the pushing rod extends into the first containing groove; a first elastic member providing a first elastic force to the damper to enable the damper to move downward; the second elastic component provides second elastic force for the sliding component so that the sliding component can move towards the damper, the first locking face and the third locking face can make contact and be locked, or the second locking face and the fourth locking face can make contact and be locked. The pawl assembly can keep the opening state without locking the clamping jaw assembly so as to ensure that the clamping jaw assembly can rotate freely, and therefore the trunk lid can be opened conveniently.

The invention relates to the technical field of rusty pipe recycling and machining, in particular to an accurate positioning device suitable for clamping in various spaces. The device comprises an operation bin and a position adjusting device installed in the operation bin. The position of a rusty pipe is adjusted in real time through the clamping assembly and the driving assembly, the rusty pipe subjected to rust scraping is moved to the cleaning position in time, the rust removal efficiency of the rusty pipe is improved, the two operation procedures are located in the same closed space, the situation that the treated rusty pipe is exposed out of air again, and consequently secondary rusting is caused is avoided, and the service life of the rusty pipe is prolonged. Meanwhile, the clamping state between the clamping assembly and the rusty pipe is adjusted in real time through the arranged position adjusting assembly, in the process that the rusty pipe moves to the side face of the arc plate, connection between the clamping assembly and the rusty pipe is loosened, the rusty pipe can freely rotate relative to the clamping assembly, and in the process that the rusty pipe makes contact with the arc plate, the rusty pipe is clamped. The rust pipe is driven to rotate and scrape through the friction resistance generated between the rust removing device and the rust removing device, adhered rust is removed, a stubborn rust layer is exposed, and the later spraying removing effect is improved.

The utility model relates to the technical field of robots, in particular to a wheel leg seat robot which comprises a robot body, a joint assembly, a connecting support and a seat, the joint assembly comprises wheel leg joints installed on the two sides of the robot body and running hubs connected to the wheel leg joints, the connecting support is installed at the top end of the robot body, and the seat is installed on the connecting support. And the seat is mounted on the connecting bracket. According to the wheel-legged robot, the seat is installed on the robot body of the wheel-legged robot, an operator can sit on the seat, the supporting and driving effects are achieved under the action of the joint assemblies and the driving hubs, and the seat can drive the robot to drive the robot to move and make various actions. And the working personnel can also have a rest. The seat is mounted on the connecting bracket, so that the robot has the capability of multifunctional application. And the seat can be adjusted and configured as required to adapt to different use scenes and requirements.

The invention belongs to the technical field of metallurgical heat treatment equipment, and particularly relates to a combined sealing device for a wire rod molten salt cleaning box and a using method. A combined type sealing device of a wire rod molten salt cleaning box comprises a cleaning box, a water system, a spraying system and a roller way shaft, steel plate seals are arranged on the two sides of the cleaning box, a conical partition plate is arranged in the middle of each steel plate, and an end face seal, a sealing block, a sealing block gland, a bearing seat and a bearing seat end cover are sequentially arranged on the portion, on the outer side of each conical partition plate, of the cleaning box. A bearing is arranged in the bearing seat, the roller way shaft sequentially penetrates through the conical partition plate, the end face seal, the sealing block, the sealing block gland and the bearing, the roller way shaft penetrates through the bearing seat end cover and then is sleeved with a shaft sleeve and a chain wheel, and the end of the roller way shaft is connected with a transmission shaft end connecting block and a power source connecting block. By means of the combined sealing mode of elastic sealing, pneumatic sealing and the conical partition plate, deformation of the wire rod can be well adapted, it is guaranteed that salt liquid does not leak, and the purpose of online salt liquid cleaning of the wire rod is achieved.

The invention belongs to the field of gardening intelligent instruments, and particularly relates to a paper mulberry leaf picking machine assisted by a mechanical arm. The paper mulberry leaf picking machine is designed in order to collect leaves on irregular high paper mulberry without damaging branches. The invention discloses a broussonetia papyrifera leaf picking machine assisted by a mechanical arm. The broussonetia papyrifera leaf picking machine comprises a machine body, a large arm, a small arm, an insertion plate, a pressing and cutting part, a corrugated pipe and a linkage part. A compression pipe and other structures are arranged on the top of the machine body. The small arm is connected with the large arm, and a sensor and the like are arranged at the front end of the small arm. And the insertion plate is convenient to pull. The pressing and cutting part is used for cutting up the leaves. And the corrugated pipe is tough and hermetically connected with the compression pipe. The linkage piece is arranged in the corrugated pipe, the leaf bridging effect can be prevented, and the leaves can be cut and pushed downwards. The operation table controls leaf picking actions, the sensor recognizes leaves, air can be supplied downwards when the blades cut the leaves, the shaft pressing rod is detachably connected with the cutter shaft, the fixing ring is installed in a corrugated ring of the corrugated pipe, and the arm base can rotate.

The invention provides a rotary hand support and a desktop type upper limb rehabilitation robot, the rotary hand support comprises a bottom structure, a force sensor fixed on the bottom structure, a force bearing piece arranged on the force sensor and a hand support structure annularly arranged on the bottom structure, and the hand support structure is rotatably connected with the bottom structure; the hand support structure, the bottom structure and the force bearing member enclose to form an accommodating cavity used for accommodating the force sensor. According to the rotary hand support and the desktop type upper limb rehabilitation robot, the hand support structure does not make contact with the force sensor during rotation, and detection of the force sensor on external force cannot be affected. Therefore, the rotary hand support not only can rotate freely, but also can accurately detect the magnitude of the force applied by the hand to the stressed piece.

The invention discloses a repair device for an aero-engine combustion chamber flame tube sparking plug mounting base, the repair device comprises a fixing assembly, a rotating assembly, a welding protection assembly and an argon supply assembly, the rotating assembly and the welding protection assembly are both mounted on a heat conducting plate at the top of the fixing assembly, and the argon supply assembly is connected with the welding protection assembly. The problems that an existing repairing device is long in welding time, high in rejection rate and not beneficial to health of operators during repairing are solved.

The utility model relates to the technical field of wool textile, in particular to a gilling machine speed change adjustable device which is characterized in that a connecting piece is arranged in the center of a bottom plate of a gilling machine, and a side plate at one end of a pay-off wheel is connected in a sliding groove in the connecting piece in a sliding mode. A plurality of blades are evenly arranged on the outer edge of the side plate, a speed increasing nozzle and a speed reducing nozzle are arranged in the sliding groove, the speed increasing nozzle and the speed reducing nozzle are communicated with the main air pipe through a speed increasing branch flow channel and a speed reducing branch flow channel respectively, and the speed increasing branch flow channel and the speed reducing branch flow channel are each provided with an electromagnetic valve. Wherein the airflow spraying direction of the speed increasing nozzle is along the rotation direction of the pay-off wheel, and the airflow spraying direction of the speed reducing nozzle is opposite to the rotation direction of the pay-off wheel. Therefore, the rotation speed of the pay-off wheel can be rapidly increased or decreased through cooperation of the two. The rotating speed of the pay-off wheel can adapt to the traction speed of a roller more quickly, and adverse effects are reduced.

The utility model provides a double-bearing anti-locking mute wheel, which relates to the technical field of mute wheels, and comprises a rotating shaft body and a rotating mechanism, the left end and the right end of the rotating shaft body are respectively provided with a main fixing hole, and the outer side of the rotating shaft body is provided with a spring shaft. According to the double-bearing anti-locking mute wheel, through the arrangement of the rotating mechanism, the double-bearing anti-locking mute wheel is installed on the outer side of equipment, when the equipment is moved, the mute wheel rotates, tires made of nylon materials can reduce friction and achieve the effects of sound absorption and shock absorption, and when the bearings rotate, the mute wheel is prevented from being blocked. The spring can enable the rotating shaft body to adjust in a self-adaptive mode and reduce uneven load and stress, the transmission chuck drives the bearing to move synchronously, the transmission chuck can enable the bearing to move synchronously, so that the system has higher stability and precision, when the mute wheel rotates, the protection plate made of plastic materials has the advantages of being light, resistant to abrasion and not prone to deformation, and the service life of the mute wheel is prolonged. And sundries can be prevented from entering the bearing, so that the pulley is prevented from being blocked.

The utility model belongs to the technical field of power line clearing obstacles, specifically is power line clearing construction branch shearing positioning frame, including support frame, the inside of support frame is opened with first rotation groove, the inner wall rotation of first rotation groove is connected with first rotation axis, through above -mentioned structure, utilize the function that the hook realized the function of suspension support frame, after the hook is hung on the branch, utilize the branch's push to make the device's weight lightens when using, reduced the hand load when the worker is operating, reduced the cutting difficulty, utilize the positioning function of hook when cutting fixed branch and position, made the cutting angle and position of this device more accurate, utilize the cooperation of first rotation axis and first rotation groove played the function that rotation connected support frame and hook simultaneously, made support frame can rotate freely after the hook is hung, improved the angle selection when cutting, improved the flexibility and operability of this device when using.

The utility model relates to an auxiliary structure for locking the angle of an endoscope lens, which comprises an arc-shaped locking plate, the locking plate is arranged below a rotating wheel, a friction pad is arranged on one surface, close to the rotating wheel, of the locking plate, and the locking plate is tightly attached to the peripheral wall of the rotating wheel through the friction pad; one end of the locking plate is connected with the endoscope shell, the other end of the locking plate is connected with a pull rod, the end, away from the locking plate, of the pull rod is rotationally connected with an operation plate, an operation opening allowing the operation plate to swing is formed in the endoscope shell, the operation plate is rotationally connected with the inner wall of the operation opening through a pin shaft, and a locking piece used for fixing the operation plate is arranged at the operation opening. When the end, away from the pull rod, of the operation plate rotates towards the rotating wheel, the end, connected with the operation plate, of the pull rod moves upwards, and the end, connected with the pull rod, of the locking plate rotates towards the rotating wheel till the friction pad abuts against the peripheral wall of the rotating wheel. The lens can be locked after the observation angle is adjusted, the stability of the endoscope lens is guaranteed, and the operation effect is guaranteed.

The present invention relates to the technical field of rust pipe recycling and processing, and specifically, to a precise positioning device suitable for clamping in various spaces. It includes an operating chamber and a positioning device installed inside the operating chamber. The present invention adjusts the position of the rust pipe in real time through the provided clamping assembly and driving assembly, and timely moves the rust pipe after rusting to the cleaning position, thereby improving the rust removal efficiency of the rust pipe, and the two operation processes are in the same closed space, so as to avoid the treated rust pipe being exposed to the air again, resulting in secondary rusting. At the same time, the clamping state between the clamping assembly and the rust pipe is adjusted in real time through the provided positioning assembly, and in the process of moving to the side of the arc plate, the connection between the clamping assembly and the rust pipe is loosened, so that the rust pipe can rotate freely between the clamping assembly, and in the process of contacting with the arc plate, the friction resistance generated between the two drives the rust pipe to rotate and scrape, removes the adhered rust, exposes the stubborn rust layer, and improves the removal effect of the later spraying.

The present invention discloses a safety lock core, comprising an outer lock core group, an inner lock core group, a lock shell and an anti-pull pull wheel, wherein the lock shell is provided with a wide groove for accommodating the anti-pull pull wheel, the end surface of the wide groove close to the outer lock core group is also provided with an elongated easy-to-break groove, the outer ring of the pull wheel is provided with a groove, the lock shell is provided with a boss extending into the groove to limit the pull wheel from being pulled out, and the present invention is also designed with an inner blocking block structure that can be sleeved on the main shaft, the inner blocking block automatically falls to the gap below it after the outer lock core group falls off, and blocks the inner transmission member from moving inward. The present invention solves the problems of poor anti-pull performance and low safety of the original lock core.