34results about How to "Linkage is reliable" patented technology

The invention discloses a parallelogram connecting rod type automatic clamping bracket. The parallelogram connecting rod type automatic clamping bracket comprises a back side base, a bottom support arm, a left side clamping arm, a right side clamping arm and a reset elastic element, wherein both the left side clamping arm and the right side clamping arm comprise clamping parts, first connecting rods and second connecting rods; a first rotating support point and a second rotating support point are arranged one above the other at an interval on the bottom support arm specific to the left side clamping arm and the right side clamping arm; a third rotating support point and a fourth rotating support point are arranged one above the other on the clamping part; inner and outer ends of a first connecting rod are pivoted to the first rotating support point and the third rotating support point respectively; inner and outer ends of a second connecting rod are pivoted to the second rotating support point and the fourth rotating support point respectively; and the first, second, fourth and third rotating support points are connected in sequence to form a parallelogram structure. The bottom support arm is pressed downwards under the gravity of a mobile phone, and the mobile phone is clamped automatically through inward obliquely-upward displacement of the clamping part by means of the deformation principle of a parallelogram, so that angular change of a clamping surface on the clamping part is prevented, and good contact clamping of the mobile phone is ensured.

The invention discloses energy recycling equipment of aeration water flow. The energy recycling equipment comprises a barrel, wherein a vertical partition plate is arranged inside the barrel; the barrel is divided into a left part and a right part by the vertical partition plate; an aerating apparatus of an aerating system is arranged at the bottom of the right barrel; paddles capable of being impacted by aeration water flow are respectively arranged inside the left barrel and the right barrel of the barrel, and drive an output shaft to rotate and output energy; the vertical partition plate is arranged inside the barrel; the aerating apparatus is arranged at the lower part of the right barrel, so that the flow inside the two barrels is different in direction; the paddles are impacted by the water flow in different directions inside the two barrels, so that the energy recycling equipment can rotate along the same peripheral direction, and drives the output shaft to rotate. Thus, kinetic energy of the water flow generated by aeration is converted into reusable energy.

The invention belongs to the field of centrifugal pumps and particularly relates to a series-parallel connection centrifugal pump which has the flow channel series-parallel connection switching capacity. The series-parallel connection centrifugal pump comprises a pump body and a pump shaft. The pump shaft is provided with two impeller parts, and a first cavity channel and a second cavity channel are formed in a pump cavity corresponding to the two impeller parts. A first bypass flow channel, a second bypass flow channel, a first liquid outlet flow channel and a second liquid outlet flow channel are formed in the pump body, wherein the first bypass flow channel and the second bypass flow channel are used for communicating an outlet of an external liquid inlet pipeline and an inlet of the first cavity channel as well as the outlet of the external liquid inlet pipeline and an inlet of the second cavity channel respectively, and the first liquid outlet flow channel and the second liquid outlet flow channel are used for communicating an inlet of the external liquid outlet pipeline and an outlet of the first cavity channel as well as the inlet of the external liquid outlet pipeline and an outlet of the second cavity channel. A branch flow channel is further arranged in the pump cavity, one end of the branch flow channel is communicated with a liquid inlet of the second cavity channel, and the other end of the branch flow channel is communicated with the first liquid outlet flow channel to form a three-way joint. The series-parallel connection centrifugal pump further comprises a switching part, a switching assembly is arranged at the second liquid outlet flow channel, and the switching assembly and the switching part are in electric linkage or mechanical linkage. Due to the linkage structure, the series-parallel connection centrifugal pump is reasonable and practical in structure, long in service life and reliable and stable in work.

The invention belongs to the field of hydraulic control valves, in particular to a hydraulic control valve for real-time detection of flow velocity. , a detection blade is fixedly installed on the outer side of the outer rotating sleeve, the two ends of the outer rotating sleeve penetrate through the side wall of the monitoring casing and are fixedly sleeved with a bidirectional signal transmitting head, and the monitoring casing is close to the position of the outer rotating sleeve The external fixing frame is fixedly installed. By arranging ratchet teeth on the outer side of the fixed shaft, and setting meshing teeth on the inner side of the outer rotating sleeve to mesh with the ratchet teeth, the outer rotating sleeve can only rotate clockwise relative to the fixed shaft, avoiding the situation of backflow and ensuring the smooth operation of the device. At the same time, it also prevents the counterclockwise rotation of the outer rotating sleeve when driving the rotation of the two-way signal transmitting head, which leads to the detection error of the sensing head, making the linkage between the structures more reliable and accurate.

The invention discloses an integral passive broken belt protection device and an integral passive broken belt protection method for a belt conveyor. The device mainly consists of a rack and an upper self-locking wedge block, an upward overturning mechanism, a downward overturning mechanism, a lower self-locking wedge block and an overturning link gear which are arranged on the rack. A belt of the conveyor is controlled by the overturning link gear arranged between the upward and downward overturning mechanisms; when the conveying belt normally operates, the overturning mechanisms are kept balanced under the action of counter weights and a pressing force of the conveying belt; and when the conveying belt is broken, the pressing force of the conveying belt disappears and the balance is broken, and thus, a counter weight plate and a counter weight block are deflected to generate the torque to enable the upward and downward overturning mechanisms to be respectively self-locked with the upper and lower self-locking wedge blocks, so that the broken belt is clamped and braked. The integral passive broken belt protection device has a simple structure, is convenient to use, has high response speed, is simple to reset, is reliable to capture, is convenient to maintain, is particularly suitable for integral binding cloth of the rubber belt of the mine underground belt conveyor and is also suitable for other belt conveyors.

The invention discloses an automatic separating device of an electric connector, and comprises a shell body. A connector base is arranged on the shell body; an insertion separating port is arranged on a panel of the shell body; a guide rail is movably assembled on a guiding device which guides in the plugging direction of the connector in the shell body; the connector base is movably assembled onthe guide rail in the guiding direction of the guide rail; an automatic guide rail return mechanism which drives the guide rail to move to the return position in the plugging direction is arranged onthe guide rail; an automatic connector base return mechanism which drives the connector base to move from the separation position to the splicing position is arranged on the connector base; and a retaining tongue locking mechanism for preventing the connector base from moving to the return position is arranged on the shell body in the splicing position of the insertion separating port. The power components of the separating device is used for skillful unlocking by utilizing external force from vertical and plugging direction; the separating action is realized by the guide rail return mechanism; the unlocking and the separating action can be completed instantly. Therefore, the separating device has the advantages of reliable linkage and no interference on an external system.

The invention discloses a small-diameter cylindrical sewing machine, which comprises a frame, a machine head arranged on the frame, and a cylinder located below the machine head; an eccentric installation through hole located above the axis of the cylinder is arranged in the cylinder, The eccentric installation through hole is equipped with a movable knife shaft cylinder, and the movable knife shaft cylinder is equipped with a rotary hook shaft; the movable knife shaft cylinder and the rotary hook shaft share a driving motor as power; the motor is connected to a transmission shaft, which is respectively connected to There are cam base and transmission assembly; the cam base is linked to a crank connecting rod assembly, and the crank connecting rod assembly is linked to the movable knife shaft; the transmission assembly is linked to the hook shaft; the clutch control assembly is used to control the clutch of the crank connecting rod assembly and the cam base , to realize intermittent thread trimming; in this way, through the structural design of the cylinder, moving knife shaft barrel, and hook shaft, and the moving knife shaft barrel and hook shaft share a driving motor as power, thereby effectively saving design space , which is conducive to the miniaturization design of the cylinder to meet the needs of small objects or small area processing and trimming.

The invention discloses a bi-direction balance type bellows compensator which comprises a left connection pipe, a ring cover, bellows, a guide pipe, an inner pipe, an outer pipe, a middle connection pipe, padding and a right connection pipe. The left connection pipe and the right connection pipe are thin-wall pipes, and one end of each thin-wall pipe is provided with a flange edge. The ends of the two thin-wall pipes are coaxially arranged in the mode of facing outside. Inner holes of the flange edges are respectively connected with the bellows in a sealing mode. The middle connection pipe in the middle is connected with the other ends of the bellows on the two sides in a sealing mode. The guide pipe and the inner pipe are coaxially arranged in inner cavities of the bellows together in a sleeved mode. The left end of the guide pipe is fixedly connected with the left connection pipe, and the right end of the inner pipe is fixedly connected with the right connection pipe. The outer pipe is a straight pipe covering the bellows in a sleeved mode. The flange edge of the left connection pipe and the flange edge of the right connection pipe are in clearance fit with the inner wall of the outer pipe. The inner wall of the outer pipe in the middle is fixedly connected with the middle connection pipe. The two ends of the outer pipe are respectively and fixedly connected with the ring cover. The padding is filled into the portion between the flange edges of the left connection pipe and the right connection pipe and the ring cover for forming a slide sealing pair. The bi-direction balance type bellows compensator of an integrated structure is small in axial dimension, and the two bellows can achieve the single-direction or bi-direction compensation motion and the balance motion synchronously.

This invention discloses a green environment-friendly removing device for porcelain glaze based on defective enamels, including a main body, a reaction cavity with an upward opening formed in the main body and a supporting plate slidably arranged between the inner walls in the reaction cavity, and an enamel residual product can be placed on the supporting plate, and a porcelain glaze removing mechanism capable of enabling the enamel residual defective product to generate chemical reaction and remove the porcelain glaze is arranged in the reaction cavity, has a very optimized reworking effect; does not need a mechanical reworking process and does not need to worry about the pollution environment, so that the porcelain glaze removal process of the whole enamel defective product is simple and trouble-saving; some wastes generated after processing can be collected and utilized, and all generated waste liquid wastes can reach emission standard and green and environment-friendly.

A laser pointer capable of miniaturization is provided. A laser pointer (10) accommodates a semiconductor laser device (12) in a casing body (11), and can project laser light emitted from the laser device (12) from a projection unit (58) to form predetermined indication marks. The laser pointer (10) includes a lens holder (15) mounted with multiple lenses (46, 47), and the lens holder (15) is arranged between the laser device (12) and the projection part (58). A central axis (L) of laser light emitted from a light emitting surface (12A) of a laser device (12) is set to coincide with a central axis of a housing main body (11). The projecting part (58) is provided at the rotation center position of the rotation member (16) mounted on the housing main body (12), and the rotation center of the rotation member (16) is set to coincide with the central axis (L) .