46results about How to "Convenient relative rotation" patented technology

The invention discloses a snap-fitting tool for petroleum machinery, which comprises a first clamp and a second clamp oppositely arranged, one end of the first clamp and the second clamp are connected through a rotating shaft in rotation, and the first clamp A connecting block is provided on the outer wall of the hoop and the second hoop away from the end of the rotating shaft, and the two connecting blocks are fixedly connected by a locking mechanism. The opposite sides of the first hoop and the second hoop are both A fixed block is provided, and slots are provided on opposite sides of the two fixed blocks, and a rotating arm is inserted in the slot, and a snap ring is fixedly sleeved on the rotating arm, and the snap ring is far away from One side of the fixed block is provided with a pressure ring that is rotatably sleeved on the rotating arm, and the side of the pressure ring close to the fixed block is fixed with a connecting ring, and the fixed block is provided with an annular connection groove corresponding to the connecting ring . The invention has the advantages of simple structure, convenient use, stable and firm fixing of the plug valve, preventing the plug valve from shaking, thereby improving the installation efficiency of the plug valve.

The invention provides a multiple nested file cabinet comprising a rotating shaft, a spline sleeve, a push rod, a slider and multiple ring frames; a plurality of side plates are mounted on the inner periphery of each ring frame along the circumferential direction, and the plurality of side plates divide the ring frame into a plurality of storage cells along the circumferential direction; a plurality of ring frames are coaxially arranged, and sequentially sleeve on the outer periphery of the rotating shaft from the inner side to the outer side; each ring frame is correspondingly provided with atransmission ring, the outer periphery of the spline sleeve is provided with an outer spline, and the inner periphery of each transmission ring is provided with an inner spline engaged with the outerspline on the spline sleeve; during the linear sliding process of the spline sleeve, the spline sleeve meshes with the contacting transmission ring respectively, and the rotating shaft drives the corresponding ring frame to rotate through the spline sleeve and the transmission ring. The invention discloses a multiple nested file cabinet, which can adjust the position of each storage cell on the ring frame by rotating the ring frame when in use, so as to take and put articles by rotating the storage cell at the high position to the low position.

The invention discloses an anti-theft mobile phone shell, and belongs to the technical field of mobile phone accessories. The anti-theft mobile phone shell comprises an outer shell and an earphone hole, the earphone hole is formed in the side wall of the short side of the outer shell, a first installation groove communicated with the earphone hole is further formed in the side wall of the short side of the outer shell, a second installation groove communicated with the first installation groove is formed in the side wall of the long side of the outer shell, and a connecting piece is fixedly arranged in the second installation groove. The connecting piece comprises a sleeve and a touch pressing block, the sleeve is embedded into the inner wall of the second installation groove, the touch pressing block is slidably connected into the sleeve, and a limiting clamping ring matched with the second installation groove is fixedly arranged at the end of the touch pressing block; the earphone plug is fixedly connected with or separated from the mobile phone shell by setting manual operation, so that when the mobile phone shell is fixedly connected with the earphone plug, the attention of a user can be attracted to a great extent, and the risk that a mobile phone is stolen is reduced; in addition, a user can separate the earphone plug from the mobile phone shell by touching and pressing the touching and pressing block.

The invention belongs to the technical field of automobile parts and particularly discloses a gear interlocking type automobile back door hinge, which comprises a first hinge, a second hinge, a thirdhinge, a first pin shaft and a second pin shaft; a regulating chamber is arranged on the second hinge, a first gear and a third gear are arranged on the first pin shaft, and a second gear is arrangedon the second pin shaft; a first one-way bearing and a third one-way bearing are arranged on the first pin shaft, a first friction wheel is arranged on the first one-way bearing, and a third frictionwheel is arranged on the third one-way bearing; a second one-way bearing and a fourth one-way bearing are arranged on the second pin shaft, a second friction wheel is arranged on the second one-way bearing, and a fourth friction wheel is arranged on the fourth one-way bearing; the adjusting chamber is internally provided with a fixing column, a locking gear, an upper adjusting column, a lower adjusting column and an adjusting rod; an upper friction wheel sleeves the outer wall of the upper adjusting column, and a lower friction wheel sleeves the outer wall of the lower adjusting column. The door hinge aims to solve the problem that a prior hinge can only open the back door by 180 degrees.

The injection mold comprises a bottom plate, a fixed mold block and an ejector plate, a plurality of first ejector pins and a plurality of second ejector pins are arranged on the ejector plate, the ends, away from the fixed mold block, of the second ejector pins are slidably connected with the ejector plate, a plurality of driving mechanisms are arranged on the ejector plate, and a touch rod is further arranged on the ejector plate. One end of the feeler lever is in linkage fit with the driving mechanism; during mold opening, the ejector plate moves towards the fixed mold block, the first ejector and the second ejector synchronously eject a product until the feeler lever abuts against the fixed mold block, the ejector plate continues to move, the feeler lever drives the driving mechanism to drive the second ejector to secondarily eject towards the fixed mold block, and the secondary ejection distance of the second ejector is larger than the moving distance of the ejector plate. The product is separated from the first ejector pin. According to the injection mold convenient to demold, a product can be quickly and completely demolded from the fixed mold and the ejector pin in sequence, and the machining efficiency is improved.

The invention discloses an angle-adjustable display screen comprising a bottom plate and a screen. A supporting column is rotatably connected to the upper side of the bottom plate. A mounting block is fixed to one side of the screen. A mounting groove corresponding to the supporting column is formed in the mounting block. The supporting column is rotatably connected with the inner side wall of the mounting groove through two connecting shafts. Rotating grooves corresponding to the connecting shafts are formed in the inner side wall of the mounting groove. The connecting shafts are fixedly sleeved with anti-slip rubber rings. The outer side walls of the anti-slip rubber rings make contact with the inner side walls of the rotating grooves. An inserting groove is formed in the end, close to the inner bottoms of the mounting grooves, of the supporting column. An inserting block is connected to the inner bottom of the inserting groove through a spring. The end, away from the spring, of the inserting block penetrates through a groove opening of the inserting groove and is fixedly connected with an arc-shaped contact plate. The structure is simple, and using is convenient; and the display screen can deflect vertically and horizontally so that audiences in various directions can watch the display screen conveniently.

The invention discloses an angle-adjustable display screen comprising a bottom plate and a screen. A supporting column is rotatably connected to the upper side of the bottom plate. A mounting block is fixed to one side of the screen. A mounting groove corresponding to the supporting column is formed in the mounting block. The supporting column is rotatably connected with the inner side wall of the mounting groove through two connecting shafts. Rotating grooves corresponding to the connecting shafts are formed in the inner side wall of the mounting groove. The connecting shafts are fixedly sleeved with anti-slip rubber rings. The outer side walls of the anti-slip rubber rings make contact with the inner side walls of the rotating grooves. An inserting groove is formed in the end, close to the inner bottoms of the mounting grooves, of the supporting column. An inserting block is connected to the inner bottom of the inserting groove through a spring. The end, away from the spring, of the inserting block penetrates through a groove opening of the inserting groove and is fixedly connected with an arc-shaped contact plate. The structure is simple, and using is convenient; and the display screen can deflect vertically and horizontally so that audiences in various directions can watch the display screen conveniently.

An assembling and positioning device of a middle door lock body for railway transportation. The assembling and positioning device of the middle door lock body for railway transportation comprises a support, a rotating platform, a motor, a rotating seat and a light sensation positioning assembly. The rotating platform is fixed on the upper portion of the support, the rotating seat is mounted on the rotating platform, a groove for placing of the head of the lock body is formed in the upper end face of the rotating seat, and a rotating shaft of the motor is connected with the lower end of the rotating seat. The light sensation positioning assembly comprises an infrared transmitting tube and an infrared receiving tube, the transmitting line and the receiving line of the infrared transmitting tube and the infrared receiving tube are consistent with the direction of the axis of an oblique hole in the lock body, and the infrared receiving tube is connected with the motor. The lock body is mounted on the rotating seat, the motor drives the rotating seat to rotate, the rotating seat drives the lock body to rotate, when the lock body rotates to a specific angle, light emitted by the infrared transmitting tube penetrates through the oblique hole to be captured by the infrared receiving tube, the infrared receiving tube is connected with the motor, an outside control circuit senses and controls the motor to stop rotating, and positioning operation of the lock body is achieved. The assembling and positioning device of the middle door lock body for railway transportation is convenient to operate and accurate to position.

The invention discloses a rotatable oil injection mechanism. The rotatable oil injection mechanism comprises an elbow oil cup, a rotary body and a one-way valve which are arranged from top to bottom in sequence. The lower end of the elbow oil cup is provided with a spherical connecting part. The spherical connecting part is provided with an oil injection port communicating with the interior of theelbow oil cup. The upper side of the rotary body is provided with a first insertion groove corresponding to the elbow oil cup. The inner sidewall of the first insertion groove is provided with a connecting groove corresponding to the spherical connecting part. The end, close to the spherical connecting part, of the elbow oil cup is sleeved with a connecting ring. The inner sidewall of the connecting ring is annularly provided with a plurality of sliding blocks. The outer sidewall of the elbow oil cup is provided with first sliding grooves corresponding to the sliding blocks. The lower side ofthe connecting ring is provided with a mounting ring. The rotatable oil injection mechanism is simple in structure and convenient to use and facilitates injection of grease by rotating the elbow oilcup. Meanwhile, communication of an oil injection channel of the oil injection mechanism can be controlled conveniently. Accordingly, oil injection operation can be carried out conveniently and smoothly.

The invention discloses an anti-theft ball lock and mainly relates to the fields of locks. The anti-theft ball lock comprises a lock housing, wherein a lock cylinder is arranged in the lock housing and is provided with a first key insertion groove, the lock cylinder is provided with a first ball hole, the lock housing is provided with a second ball hole, a first ball group is arranged between the first ball hole and the second ball hole and comprises a first ball and a second ball, the lock cylinder is provided with a second key insertion groove and a third ball hole, the lock housing is provided with a fourth ball hole, a second ball group is arranged between the third ball hole and the fourth ball hole and comprises a third ball and a fourth ball, and the lock housing is provided with connecting grooves communicated with the second ball hole and the fourth ball hole and elastic linkage parts arranged in the connecting grooves and connected with the second ball hole and the fourth ball hole. The anti-theft ball lock is provided with the two ball groups, the elastic linkage parts making the corresponding ball groups linked mutually are arranged between the corresponding ball groups to prevent technical lock opening, and the thievery prevention performance of the lock is improved.

The invention discloses intelligent power environment monitoring equipment. The equipment mainly comprises a transportation platform; one side of the top surface of the transportation platform is fixedly connected with a first supporting frame; the middle part of the top surface of the first supporting frame is fixedly connected with a limiting pipe; a threaded pipe is slidably connected into the limiting pipe; the middle of the inner wall of the first supporting frame is fixedly connected with a first motor; and the output end of the first motor is fixedly connected with a lead screw. The equipment has the advantages that the threaded pipe is slidably connected into the limiting pipe, the output end of the first motor is fixedly connected with the lead screw, the lead screw is in threaded connection with the threaded pipe, the threaded pipe is slidably connected with the limiting pipe, two limiting strips are slidably connected with limiting grooves correspondingly, and when the first motor is powered on to operate, the lead screw is driven to rotate, the lead screw and the threaded pipe can rotate relatively, the threaded pipe can extend conveniently, the relative height of a protective shell can be adjusted conveniently, and the purpose of adjusting the monitoring height is achieved.

The invention relates to the technical field of valve production, in particular to an automatic control ball valve with an in-advance pressure relief function. The automatic control ball valve comprises a ball assembly, a valve assembly, a driving device and a control device. The ball assembly comprises an outer ball and an inner ball which are in rotating fit. The valve assembly comprises a middle valve and two connecting valve pipes. Valve seats are arranged at the ends, close to the middle valve, of the two connecting valve pipes correspondingly. The driving device comprises a rotating mechanism used for driving the ball assembly to rotate and a limiting mechanism used for limiting the ball assembly. The control device comprises a controller and a sensor assembly electrically connectedwith the controller. The automatic control ball valve has the beneficial effects that the problem of large friction force during in-advance pressure relief can be solved, opening and closing of the automatic control ball valve are achieved, operation of workers is omitted, and the opening and closing efficiency of the ball valve is improved.