32results about How to "Avoid pulling away" patented technology

The invention discloses a rapid collecting device for deep soil, and relates to the technical field of soil detection. The rapid collecting device comprises a sampling rack, a sampling depth control mechanism, a soil sampling cylinder assembly, a drill bit base assembly and drill bit assemblies. The rapid collecting device has the technical advantages that the device is applicable to collecting soil of different geological types, and can collect soil in deep soil layers; when the soil sampling cylinder assembly goes deep enough into soil, the multiple drill bit assemblies are controlled to pinch off the lower end of a soil column, the lower end of the soil column is supported, and the phenomenon that the soil column is extracted and pulled apart when the soil column is extracted out upwards is avoided. The sampling depth control mechanism is connected to the upper end of the sampling rack, the two ends of the soil sampling cylinder assembly are in sliding-fit connection with the two ends of the sampling rack, the middle end of the soil sampling cylinder assembly is in threaded connection with the sampling depth control mechanism, the drill bit base assembly is connected to the lower end of the soil sampling cylinder assembly, and the four drill bit assemblies are evenly wound around the lower end of the drill bit base assembly.

The invention belongs to the technical field of forestry felling, and particularly relates to a directional toppling auxiliary device for forestry cedar felling. The directional toppling auxiliary device aims at solving the problem that lumberjacks are injured inattentively due to the fact that fixing devices inserted into the ground can be suddenly pulled up once trees fall down due to the fact that one supporting frame is arranged in an existing lumbering auxiliary toppling device mostly and the bottom end of the supporting frame is inserted into soil. According to the scheme, the directional toppling auxiliary device comprises a timber pile nailed near the root of one side of a tree to be fallen and for preventing toppling, a main barrel with an upward opening and of a cuboid structurein the overall appearance, a hoop I and a hoop II, wherein the hoop I and the hoop II are hinged together. According to the directional toppling auxiliary device for forestry cedar felling, when the tree needs to be jacked and supported in the using process, firstly, only a tree trunk needs to be held through the hoop I and the hoop II, then the tree trunk can be propped against only by adjustinga transmission screw rod, and at the moment that the tree trunk is cut, a propping block, the hoop I and the hoop II can be automatically separated from a supporting device, so that the supporting device is prevented from being pulled away together, and the safety of a device is improved.

The invention provides a downhole seismic source, comprising an upper cylinder body, a middle cylinder body, and a friction slip arranged between the upper cylinder body and the middle cylinder body,and furthering comprising a slip mandrel arranged corresponding to the friction slip, and an adjusting ring sleeving the slip mandrel. The adjusting ring is in threaded connection with the slip mandrel so as to move in the axial direction of the slip mandrel, and therefore the pre-tightening force of the friction slip can be adjusted. The invention discloses the downhole seismic source. Through arrangement of the adjusting ring, the pre-tightening force on the friction slip can be adjusted by shifting and rotating the position of the adjusting ring so as to adjust the locking force of a locking mechanism, so that the strength of a vibration signal can be adjusted, and a standard vibration signal can be provided for borehole anti-collision monitoring and while-drilling earthquake technologies and is used for predicting the characteristics of a stratum in front of a drill bit and helping to identify the downhole condition.

The invention discloses an upper stop zipper device and clothes. The top-stop zipper device comprises cloth belts, a long upper stopper and a short upper stopper, zipper teeth and a zipper head, wherein the long upper stopper is arranged on the belt rib of one cloth belt, the short upper stopper is arranged on the belt rib of the other cloth belt, and the zipper teeth and the puller are arranged in the length direction of the belt rib. The zipper head can move along the zipper teeth, the zipper head is provided with a cavity facilitating insertion of the long upper stopper and the short upperstopper, the long upper stopper and the short upper stopper are elastic pieces, protruding clamping parts are arranged on the side portions of the long upper stopper and the short upper stopper, and grooves used for fixing the clamping parts are correspondingly formed in the side portions of the zipper head. By using the upper stop zipper device provided by the invention, the zipper can be effectively prevented from being passively unzipped in severe environments and strenuous exercises, and the upper stop zipper device is simple in structure and convenient to use, and can be popularized and used.

The invention discloses a manufacturing process of a two-step plate. The manufacturing process comprises the following steps: inner-layer circuits of a first core plate and a second core plate are respectively manufactured, wherein the inner layer circuit on the first core plate comprises bonding pads which are correspondingly arranged on two sides of the stepped groove area; a blind groove is milled in the periphery, corresponding to the stepped groove area, of the second core plate; the first core plate, first non-gummosis PP, second non-gummosis PP and the second core plate are laminated insequence and then pressed into a production plate, a first window and a second window which are larger than the maximum size of the stepped groove area are formed in the first non-gummosis PP and thesecond non-gummosis PP, and the size of the first window is larger than that of the second window; an outer layer circuit and a solder mask layer are sequentially manufactured on the production board; the part, corresponding to the stepped groove area, of the second core plate is removed to form a first groove hole and expose the bonding pad; and a second slotted hole is formed in the middle of the bottom of the first groove hole. According to the manufacturing process disclosed by the invention, the problem of abnormal quality caused by an inner-layer PAD on gummosis is effectively solved ina double-layer PP unequal-size windowing manner.

The invention belongs to the technical field of epidemic area air purification, and mainly relates to an epidemic area isolation room air purification device which comprises an installation plate, anda first air inlet room and a second air inlet room located at the upper end and the lower end of the installation plate, the first air inlet room is provided with a first fan and is connected with afirst air outlet flue; a sterilizer, a glass air guiding pipe and a first clapboard are arranged in the first air outlet flue; one end of the glass air guiding pipe is fixed onto the first clapboard and communicates with the first air inlet room; a humidifier is connected to the outlet end of the glass air guiding pipe; a second fan is arranged in the second air inlet room; the second air inlet room is connected with a second air outlet flue; a second clapboard is arranged in the second air outlet flue; and a high-temperature sterilization pipe is arranged on the second clapboard and communicates with the second air inlet room, so that the isolation room air circulation problem is solved, air is sterilized on the premise of maintaining air circulation, pathogene in the isolation room is prevented from discharging outdoors, and meanwhile, the outdoor pathogene is prevented from being introduced indoors.

The invention discloses a double-layer intercommunicating water supply valve of a ceramic closing element, and relates to the technical field of ceramic valves. The double-layer communicating water supply valve of the ceramic closing element solves the problems that an existing valve can be maintained only by cutting off water, an additional water cutting step is troublesome, the normal productiontime is occupied, the production efficiency is influenced, and the practicability is poor. The double-layer intercommunicating water supply valve of the ceramic closing element comprises a valve body, a water pipeline, a square sleeve rod and vertical supporting and inserting rods, wherein the valve body comprises a valve element sleeve, a supporting frame and a hand wheel, the valve body is of arectangular structure, a penetrating shaft hole is formed in the valve body, the valve element sleeve is welded and supported at the top end of the penetrating shaft hole, a circular cover plate is locked and blocked at the bottom of each of the valve element sleeve and the penetrating shaft hole, a supporting frame is welded to the top end of the valve body in a supporting mode, and the hand wheel is installed in the top middle position of a supporting rod of the supporting frame in a rotating-inserting mode. According to the double-layer intercommunicating water supply valve of the ceramicclosing element, two ceramic valve elements can be inserted, connected, abutted and positioned together through the two vertical supporting and inserting rods, and the two ceramic valve elements are prevented from being loosened and separated.

The invention discloses a control method and device of a gas heating water heater. The control method includes the following steps that the combustion state of the gas heating water heater is obtained; the operation state of a fan is adjusted according to the combustion state of the gas heating water heater; and the operation state of the fan corresponds to the combustion state of the gas heatingwater heater. By adjusting the speed of the fan according to the combustion state of the gas heating water heater, it is realized that the fan speed corresponds to the staged combustion state of the gas heating water heater, the situation that flame is pumped away due to the high fan speed is avoided, the defect of excessive carbon monoxide caused by insufficient combustion is overcome, the safetyfactor of the gas heating water heater is improved.

The invention discloses a clutch mechanism of an electronic lock cylinder. The clutch mechanism comprises a front handle assembly, a rear handle assembly and a lock cylinder body, wherein the rear handle assembly comprises a front spindle and a rear spindle. The front spindle and the rear spindle each comprise a front handle and a rear handle, the front spindle and the rear spindle are arranged ina synchronous rotation mode, the rear spindle sleeves the front spindle, the front spindle is internally provided with a clutch mechanism body, the clutch mechanism body includes a lock cylinder shaft and a pawl, a poke rod is eccentrically arranged at one end of the lock cylinder shaft, a through hole is provided on the side wall of one end of the front spindle, the claw is slidably disposed inthe through hole, clamping protrusions are symmetrically arranged on the two sides of the pawl, a plurality of racks are symmetrically arranged on the inner wall of the rear spindle, the clamping protrusions on one side of the rear spindle can be engaged with the racks to realize one-way driving of the rear spindle, and the poke rod drives the clamping protrusions on the other side of the claw tobe engaged with the reversing of the racks after the lock cylinder shaft rotates reversely. The clutch mechanism has the effects that locking is convenient and fast, the structure is simple, and the electric quantity is saved.

The invention discloses an anti-disturbance tripping method for unbalance protection of a high-voltage capacitor with an inner fuse. The anti-disturbance tripping method for unbalance protection of the high-voltage capacitor with the inner fuse comprises the following steps: 1, obtaining an unbalance variation constant value delta 3 of unbalance protection of the high-voltage capacitor with the inner fuse; 2, determining protection delay time T according to fusing time of the inner fuse when a short-circuit fault occurs in a capacitor element; 3, when a protection device detects that the unbalance variation of the high-voltage capacitor satisfies the unbalance variation constant value delta 3 and a duration satisfies the protection delay time T, carrying out an operation of adding 1 on accumulators; 4, determining a protection action strategy for unbalance protection of the direct-current filter high-voltage capacitor with the inner fuse according to values after the operation on accumulators c1 and c2 in step 3. The anti-disturbance tripping method for unbalance protection of the high-voltage capacitor with the inner fuse has the advantages that the influence caused by disturbance to the unbalance protection of the direct-current filter high-voltage capacitor with the fuse can be limited, the protection accumulators add 1 when disturbance occurs, a protection alarm is given but tripping is not conducted, and the high-voltage side isolator of the direct-current filter or the direct-current system is prevented from being pulled open for ESOF (Emergency Switch Off).

The invention discloses a storage device and a drawer closing method thereof. According to the storage device, one of a motor or a rack for driving a drawer is arranged on an installation base, the installation base is arranged on an energy storage mechanism, when the drawer is opened, a gear and the rack are unhooked, and the installation base is located at a high position; when the gear and the rack are meshed, the installation base is located at a low position; a position detection device is combined to determine the position of the installation base; when the installation base is in the low position, the motor is controlled to be started to enable the drawer to be automatically closed; and when the drawer needs to be closed, pushing force only needs to be applied to any position of the front end of the drawer, compared with pressing of a button at a specific position, operation is easier, and the storage device is more suitable for pharmacy application. Meanwhile, when a worker in front of the drawer collides with the opened drawer, the drawer can automatically trigger the motor to close the drawer under the action of thrust, so that hard collision between the drawer and the worker is effectively avoided, and the safety is fully improved.

The invention provides a chip material taking mechanism which is structurally and mainly composed of a material taking arm, an electromagnetic suction platform, a pressure sensor, a V-shaped block group, an elastic recovery mechanism. A V-shaped boss, a vacuum suction nozzle and the like are arranged on the material taking arm, the electromagnetic suction platform and the elastic recovery device are used for enabling the material taking arm to move up and down, the pressure sensor can test pressure when the electromagnetic suction platform sucks the material suction arm, finally electromagnetic suction force can be adjusted through a feedback device to prevent suction force from being too large to cause the material taking arm to vibrate remarkably, a rotation section of the material taking arm can support the material taking arm, and a specially-designed stopping block can stop the material taking arm to prevent the elastic recovery device from pulling the material taking arm to be far away from a magnet force suction range of the electromagnetic suction platform. The mechanism can be applied to a chip picking device and related particle picking equipment.