580results about How to "Low movement resistance" patented technology

The invention provides a coiled tubing clamping device and an injection head using the same, belonging to the field of oil production and drilling equipment. The clamping device includes a saddle-type clamping block and a clamping block seat, wherein the saddle-type clamping block is connected to the clamping block seat. The clamping device is characterized in that two sides of the saddle-type clamping block are provided with tongue-like platforms, the tongue-like platform is provided with an opening hole, the back part of the saddle-type clamping block is provided with a recess, two sides of the clamping block seat are respectively provided with a pair of bosses, the recess of the saddle-type clamping block is inserted into a slot formed by the clamping block seat bosses, a running clearance is left between the recess and the slot, and the clamping block seat is provided with a positioning screw for limiting the position of the saddle-type clamping block. The injection head comprises an oil pipe clamping mechanism and a transmission chain, wherein the oil pipe clamping mechanism is mounted on the transmission chain through two hinge pin holes on the clamping block seat. The technical proposal has the advantages that the abrasion of the oil pipe can be effectively reduced, the clamping device has operational reliability, and the clamping blocks are convenient in replacement.

The invention discloses a polymorphic spherical hopping robot which belongs to the field of robots. The polymorphic spherical hopping robot is characterized by comprising two parts, namely a mechanical body and a control system, wherein the mechanical body comprises two cylinder fixed frames and a movable frame, an inner side plate of the movable frame drives the whole movable frame to move to the center or two ends under the driving of a screw rod so as to control the unfolding and closing of hemispherical shells on two sides, when being unfolded, the spherical shells can be used for supporting the whole robot to run in a two-wheeled state, and when being completely closed, the spherical shells are in a spherical state and can be used for completely wrapping an internal mechanism of the robot; the control system comprises two parts, namely an upper computer and a lower computer, wherein the upper computer is used for realizing the motion and bounce control of the robot and a state display function, and the lower computer comprises a master control module, a spherical shell control module, a motion control module, a bounce control module, a data acquisition module, a gesture detection module and a data transmission module. The polymorphic spherical hopping robot has the advantages of simple structure, multiple motion states, strong adaptability, good controllability and the like.

The invention discloses an air deflector driving mechanism and a wall-hanging air conditioner. The air deflector driving mechanism comprises a driving rack (1), a driving box shell body (2), a driving gear (3) and a plurality of bearing gaskets (4), wherein the driving gear (3) is arranged inside the driving box shell body (2). The multiple bearing gaskets (4) form a guide channel. The driving rack (1) is arranged inside the guide channel in a sliding mode. The driving gear (3) is arranged inside the driving box shell body (2) and engaged with the driving rack (1). According to the air deflector driving mechanism, the structure is simple, the occupied space is small, and the assembling efficiency is high.

The invention discloses a positive and negative pressure combined plug flow fixed-point sampling device, which includes a double-wall drill rod, a drill bit, a four-way connector, a three-way connector, a negative pressure generator, a gas-solid gravity separator and a sample collection tank, as well as an annular nozzle ejector disposed in the drill bit. The rear end of the double-wall drill rod is sleeved with a two-channel faucet on the outside. The first channel of the two-channel faucet is connected to a first interface of the four-way connector, and the second channel of the two-channel faucet is connected to a first interface of the three-way connector. The second interface of the four-way connector is communicated with the second interface of the three-way connector. The third interface of the four-way connector is connected to the first air inlet of the negative pressure generator. During sampling, a material plug with a section of a sample and a section of compressed air is formed in a double-wall drill rod in-inner wall channel, and has small motion resistance in the double-wall drill rod in-inner wall channel. Driven by a negative pressure, the sample moves fast, and the sampling work has high efficiency. No plugging or drilling is needed in a sampling process, and the process is simple. Sampling can be performed at any drilling point, thus realizing fixed-point sampling.

The invention discloses an auxiliary electrical apparatus release actuation device for the residual current actuation release breaker, which comprises a four bar linkage composed of a housing, a handgrip, a U-shaped rod and a rocker arm, a shackle and a hook arranged thereon, an energy-storage spring, and a restoring lever, wherein one supporting surface of the rocker arm, the shackle hook and the column surface of the U-shaped rod form a disconnecting mechanical interlocking, thus a compacter actuation mechanism and reliable tripping operation can be achieved.

The invention discloses a method for detecting the mechanical system of a drilling machine well mouth drill stem flux leakage detector. The mechanical system comprises a clamp arm device and a permanent magnetic detector device, wherein the clamp arm device can be closed in a cylindrical shape; an accommodating part is arranged in the clamp arm device, and a detector connecting seat is arranged in the accommodating part; and the detector device is arranged on the detector connecting seat. The detection method comprises the following steps: rendering the clamp arm device in an open state and positioning the clamp arm device at the well mouth position of the drilling machine; closing the clamp arm device and placing the upper part of the drill stem at the position of the well mouth of the drilling machine in the accommodating part; lifting the drill stem along the axial direction of the drill stem, and performing the flux leakage type flaw detection of the drill stem by using the permanent magnetic detector device; and opening the clamp arm device and withdrawing the clamp arm device from the well mouth of the drilling machine. The method can detect the drill stem without current and therefore can be directly used at the well mouth of the drilling machine and used conveniently; in addition, the detector device realizes the flux leakage flaw detection in a round trip process at the well mouth of a petroleum drilling machine, the detector is safe and explosion-proof and the manual washing of the drill stem is avoided.

The invention provides a sealing device of a vacuum moving element, which comprises a moving element and a sealing ring matched with the moving element, wherein the inner hole wall of the sealing ring, matched with the moving element, is provided with a plurality of annular storing slots; the inner hole wall and the storing slots are all provided with sealing grease layers or lubricant layers; the outer wall of the sealing ring is provided with a plurality of outer ring slots; a sealing circle is embedded into each outer ring slot; and the sealing circles are matched with the sealing inner wall of a cavity body. The sealing device has the bidirectional sealing property, in particular the sealing of excellent sealing property in the frequent large-travel reciprocating motion for a long time under the vacuum or high pressure difference conditions; the inner hole wall of the sealing ring is provided with the storing slots capable of storing a certain amount of sealing grease or lubricant to effectively supplement the sealing grease or the lubricant taken way by the motion of the moving element so as to maintain the excellent sealing property at the same time of reducing motion resistance; and the pretightening force is supplied through the deformation of the sealing circle, the sealing circle can supplement the abrasion of the sealing ring, and thus, the service life of the sealing ring is prolonged.

The invention discloses a lizard simulated amphibious robot, and belongs to the field of bionics. The amphibious robot comprises a body part formed by an external frame, an internal frame and a driving mechanism and legs formed by four sets of crank and rocker mechanisms, wherein a driving motor is mounted inside the internal frame; the internal frame is positioned inside the external frame; the driving motor in the drive mechanism transmits power to transmission shafts positioned at the front part and the rear part of the internal frame through two sets of reduction devices to enable the transmission shafts to drive the crank and rocker mechanisms mounted at the two ends of each transmission shaft to move; a baseboard is mounted at the lower part of each crank and rocker mechanism. According to the invention, during the movement, the lizard simulated amphibious robot can perform three key actions, namely slapping, hitting and recovering while walking on the water; the lizard simulated amphibious robot has the advantages that the simulation of the movement of basilisk lizards is realized, the applicability for amphibiousness can be improved, besides the movement resistance is small, the moving efficiency is high, the carrying capacity is strong, the application range is wide, and the lizard simulated amphibious robot can be used for land and water rescue and monitoring.

The invention discloses an environmentally-friendly hot-melt pressure sensitive adhesive. The environmentally-friendly hot-melt pressure sensitive adhesive is prepared from, by weight, 25-35 parts ofa thermoplastic elastomer, 28-36 parts of modified petroleum resin, 6-10 parts of natural tackifying resin, 12-20 parts of a plasticizer, 2-3 parts of a modifying filler, 0.2-0.3 part of a coupling agent and 0.2-0.3 part of an antioxidant. The present invention also discloses preparation method of the hot-melt pressure sensitive adhesive. The thermoplastic elastomer is used as a matrix for the hot-melt pressure sensitive adhesive, the modified petroleum resin and the natural tackifying resin are used as tackifying resins, and no organic solvent is needed, so the raw materials are safe and environmentally friendly; the petroleum resin is modified, so the compatibility of the petroleum resin and the thermoplastic elastomer is improved, and the thermal stability of the hot-melt pressure sensitive adhesive is improved; and the reinforcing effect of the modifying filler improves the initial viscosity, the glass strength and the thermal stability of the hot-melt pressure sensitive adhesive are improved, so the environmentally-friendly hot-melt pressure sensitive adhesive with excellent performances is prepared.

The invention relates to a washing method and a washing machine applying the method. A combined washing model of drum type washing and impeller type rinsing is adopted to realize the aim of washing clothes under different speeds, so that the washing requirements on high clean degree and low winding are met. The washing method comprises the following steps that the clothes are put into an inner barrel, and washing water is injected into a water holding barrel and the inner barrel; during a washing stage, the inner barrel is rotated around a horizontal axial line under the drive of a drive motor, and the clothes are washed in a rolling way in the inner barrel along with water flow; during a rinsing stage, after the inner barrel is turned at 90 degrees, the inner barrel is rotated around a vertical axial line under the drive of the drive motor, the washing water is injected into and discharged from the inner barrel, and the rotation speed of the inner barrel in the rinsing step is larger than the rotation speed of the inner barrel in the washing step; during a dehydrating stage, the inner barrel is rotated around the horizontal axial line or the vertical axial line under the drive of the drive motor, and the washing water is discharged from the inner barrel; and the inner barrel is recovered to be at a locating state in the washing stage.

The invention discloses a collision theory based self-adaption flexible seed-clearing air-suction type planter plate. The collision theory based self-adaption flexible seed-clearing air-suction type planter plate mainly comprises an involute fixation seed suction plate and a radially corrugated seed suction groove type seed suction plate. The curve of a negative pressure groove in the involute fixation seed suction plate adopts an involute curve whose polar coordinate is that R=[20(sin(t)-tcos(t))]mm, wherein t=(0-355 degrees]; the curve of a radial seed suction groove in the radially corrugated seed suction groove type seed suction plate is part of a cartesian leaf curve, the polar coordinate of the cartesian leaf curve is that R=[100tan(t)<2>/(1+tan(t)<3>)]mm, wherein t=(0-45 degrees], and an elliptic long axis with the long axis of 10mm and the short axis of 8 mm fits the distribution of the curve of a radial seed suction groove to form a corrugated seed suction groove. The radiallycorrugated seed suction groove type seed suction plate saves the additional installation of a seed clearing device, sucks and conveys the seeds and repeatedly collides to clear the seeds in the process of matched working with the involute fixation seed suction plate, the sowing speed is improved to maximally, the breaking of the seeds is reduced, and the planter plate is more simplified.

Disclosed is a self-lubricating trocar. A self-lubricating function of a trocar can be realized by a way that a lubricating device capable of absorbing, storing and releasing medical lubricants is arranged in a position, close to an end sealing ring, between an end cap and the end sealing ring of a sheathing canal of the trocar. When a surgical instrument is inserted into the lubricating device which is squeezed by the same, the medical lubricants can be overflowed and released from the lubricating device to have the surgical instrument lubricated; when the medical instrument is withdrawn, the lubricating device is less squeezed by the medical instrument and restores to the original shape to absorb and store the medical lubricants. With the surgical instrument inserting into or withdrawing from the lubricating device, functions of the lubricating device in releasing, coating, or absorbing and storing the medical lubricants are realized. The trocar can be self-lubricated to enter the surgical instrument, sealing effect is good, and resistance to motion is low.

The invention discloses a single-side controlled double-layer insulating glass built-in louver. The single-side controlled double-layer insulating glass built-in louver comprises a rectangular windowbody, an inner frame, front glass and rear glass. The rectangular window body is composed of a left longitudinal frame strip, a right longitudinal frame strip, an upper transverse frame strip and a lower transverse frame strip. The inner frame is composed of a left inner frame strip, a right inner frame strip, an upper inner frame strip. The front glass faces to one side of the rear glass to be incontact with the front side faces of the left longitudinal frame strip, the right longitudinal frame strip, the upper transverse frame strip and the lower transverse frame strip in a pasting mode, the rear glass faces to one side of the front glass to be in contact with the rear side faces of the left longitudinal frame strip, the right longitudinal frame strip, the upper transverse frame strip and the lower transverse frame strip in a pasting mode, and sealant strips are arranged on the edge parts between the front glass and the rear glass in an embedded mode. The front sides of the left inner frame strip, the right inner frame strip and the upper inner frame strip are in contact with the side, facing to the rear glass, of the front glass, and the rear walls of the left inner frame strip, the right inner frame strip and the upper inner frame strip are in contact with the side, facing to the front glass, of the rear glass. The single-side controlled double-layer glass built-in louveris characterized in that a left inner frame strip shading extension side is arranged on the direction, facing a venetian blind cavity, of the right side of the rear wall of the left inner frame stripsin an extending mode, a right inner frame strip shading extension side is arranged in the direction, facing a venetian blind cavity, of the left side of the rear wall of the right inner frame stripsin an extending mode, privacy of users is ensured, and safety is ensured.

The invention relates to an upper limb exoskeleton with a five-degree-of-freedom shoulder structure. The upper limb exoskeleton relates to the field of upper limb exoskeletons, and comprises a back support frame, a clavicle back-and-forth swinging support, a parallelogram clavicle up-and-down swinging mechanism, a shoulder joint right-and-left swinging support, a shoulder blade support frame, a shoulder joint back-and-forth swinging support, a shoulder joint horizontal rotating mechanism, a big arm structure and a small arm structure, which are sequentially and fixedly connected; and all mechanisms rotate around rotary shafts J1 to J7. Compared with a traditional two-degree-of-freedom or three-degree-of-freedom upper limb shoulder structure, the upper limb exoskeleton with the five-degree-of-freedom shoulder structure provided by the invention has better cooperativity of human skeleton movement, consistency of multi-degree-of-freedom movement, wear comfort of a human body, and integration of shoulder complex actions.

The invention discloses a material cutting and clamping device of an upsetting machine and a working method. The material cutting and clamping device comprises a material cutting driving device, a material cutting rod and a material cutting block; a material cutting tool is arranged inside the material cutting block; a blank material ejecting rod with one end extends into the material cutting tool is arranged inside the material cutting block. According to the working method of the material cutting and clamping device, when materials are delivered into the material cutting tool, the material cutting driving device drives the material cutting rod to move, the material cutting rod drives the material shearing block to move, the material cutting block drives the material cutting tool to move, the material cutting tool shears off the materials to form into blank materials during moving, the blank materials push the blank material ejecting rod when are delivered into a cavity die for feeding through the material cutting tool, the blank materials are ejected into the cavity die through the blank material ejecting rod, the material cutting rod, the material cutting block and the material cutting tool are reset under the function of a driving block. The material cutting and clamping device has the advantages of enabling the structure to be simplified and improving quality of blank material sections.