30results about How to "Avoid the problem of easy loosening" patented technology

The invention relates to a combined reducing machine used for a mixing tank, which is characterized in that an upper box body is internally provided with a hollow input gear shaft; the upper surface of an upper box cover is provided with a motor which drives the hollow input gear shaft; the upper box body is internally provided with an input gear shaft and an input large gear which is engaged with the hollow input gear shaft; the upper box body is internally provided with a middle gear shaft and a middle large gear which is engaged to the input gear shaft; the upper box body is internally provided with an output shaft and an output large gear which is engaged with the middle gear shaft; the lower end of the output shaft is provided with a lower box body and a lower box cover which rotate correspondingly to the output shaft; a transition sleeve which is fixed with the upper box body and concentric to the output shaft is arranged between the lower box body and the upper box body; the transition sleeve is fixedly provided with a solar wheel; the lower box body is internally provided with a planetary wheel shaft which is engaged with the solar wheel, and the lower end of the planetary wheel shaft extends out; the extension end spline of the planetary wheel shaft is provided with a mixing arm which rotates correspondingly to the planetary wheel shaft, thus leading the mixing arm to have revolution and rotation and improving the uniformity of the mixing; furthermore, the combined reducing machine used for a mixing tank has the advantages of simple and compact structure, convenient assembly and maintenance and easy manufacture.

The invention provides a motor. The motor comprises a mounting rack, a stator, a rotor and a control box, wherein the stator and the control box are arranged on the mounting rack; the rotor is rotatably supported on the stator; and the stator comprises a stator core and a winding which is wound on the stator core. The motor is characterized in that the control box is electrically connected with anoutgoing line of the winding through at least one connector, each connector comprises a flexible cable and rigid conductive terminals fixed at two ends of the flexible cable, and one rigid conductiveterminal of each connector is electrically connected to the outgoing line of the winding while the other rigid conductive terminal is electrically connected to the control box. The motor is good in damping and noise reduction effects. The invention further provides a fluid conveying device using the motor.

The invention discloses an indoor wall surface decorative sheet installation structure and an installation method thereof, and belongs to the technical field of architectural decoration. An installation frame of the indoor wall surface decorative sheet installation structure includes a first fixing groove and a second fixing groove, a third fixing groove is further fixedly connected between the first fixing groove and the second fixing groove through a plurality of height-adjustable parts, buffer assemblies are arranged in the first fixing groove, the second fixing groove and the third fixinggroove, a decorative sheet is provided with fixing bars matched with the first fixing groove, the second fixing groove and the third fixing groove, the fixing bars are slidably connected with the first fixing groove, the second fixing groove and the third fixing groove correspondingly, and limiting parts for preventing the fixing bars from sliding out of the first fixing groove and the second fixing groove are arranged at the ends of the first fixing groove and the second fixing groove. The indoor wall surface decorative sheet installation structure is simple, the stability is good, and quickinstallation and disassembly can be realized.

The invention belongs to the technical field of automobiles, and particularly relates to an automobile shock pad with fixing mechanisms. The automobile shock pad comprises outer rings, fixing mechanisms are arranged on the side faces of the outer rings, the number of the outer rings is two, the two outer rings are fixedly connected through a damping mechanism, and a movable plate is movably connected in the outer ring in a sleeved mode. According to the automobile shock pad with the fixing mechanisms, through the fixing mechanisms, the automobile shock pad can be fixedly installed when the automobile shock pad is used, the problem that the automobile shock pad is easy to loosen after being vibrated for a long time is avoided, the firmness of the automobile shock pad during installation isguaranteed, so that the automobile shock pad can normally shock the automobile; and meanwhile, a shock absorption mechanism, the movable plate and a buffer rod are arranged to buffer the impact in multi stages when the automobile shock pad is used, the damping effect of the automobile shock pad is enhanced, and the automobile can run more stably.

The invention relates to the technical field of piston compressor assembling parts, in particular to a spiral fixed pattern fastening connecting device for a piston compressor. The spiral fixed pattern fastening connecting device comprises a crosshead body, a crosshead nut positioned at the upper end of the crosshead body, and a longitudinal piston rod fixed to the upper end of the crosshead nut.Based on the original fastening of the spiral fixed pattern fastening connecting device for the piston compressor, a fastening steel plate with a limiting groove is additionally arranged to cooperatewith fixation, and an external thread connecting sleeve and the fastening steel plate are fixedly connected by utilizing threaded connection, so that the problem that the piston rod of a small and medium size compressor is likely to loosen on the condition that the reciprocating inertial force is excessively large, the working time is long and the working strength is high is avoided and the safetyand reliability of continuous operation of the compressor are effectively improved.

The invention provides an auxiliary positioning type LED underground lamp. The lamp comprises a lamp body, a strut and a ground inserting component; the top of the strut is arranged at the lamp body, and the bottom of the strut is connected with the ground inserting component; the ground inserting component comprises a conical plug pin, an upper positioning part and a lower positioning part; the upper positioning part comprises an upper positioning disc and an upper clamping ring; the upper clamping ring is arranged at the bottom of the upper positioning disc; the plug pin penetrates through the middle part of the upper positioning disc and is fixedly connected with the middle part of the upper positioning disc; the lower positioning part comprises a lower positioning disc, a lower clamping ring I and a lower clamping ring II; the lower clamping ring I and the lower clamping ring II are both arranged at the top of the lower positioning disc, and a positioning groove is formed between the lower clamping ring I and the lower clamping ring II; the middle part of the lower positioning disc is provided with a ground inserting hole; the plug pin passes through the ground inserting hole. The auxiliary positioning type LED underground lamp is reasonable in structural design, simple and convenient to install, capable of being stably inserted into the ground, low in cost, durable in use and capable of preventing the problem of loosening which is easily caused during a subsequent use process.

The invention relates to the technical field of environmental monitoring equipment, in particular to an environmental monitoring system based on an environmental monitoring instrument, comprising a supporting column, the lower end of which is fixedly installed with a mounting mechanism, and the outer circular surface of the supporting column is close to the upper end of the mounting mechanism A control cabinet is installed at a fixed position, a display screen is fixedly installed on the outer circular surface of the support column close to the upper end of the control cabinet, and an air sensor is fixedly installed on the outer circular surface of the support column close to the upper end of the display screen. The present invention can prevent sundries such as gravel from entering between the thread and the threaded hole of the anchor bolt, causing damage to the thread and the threaded hole, and improves the stability of the connection of the anchor bolt, thereby improving the overall installation strength of the base. At the same time, since the cover body is used to cooperate with the clamping groove on the plate body to realize the sealing of the position of the anchor bolt hole, it can prevent the dust from forming a bonded block with the anchor bolt on the base, and it is convenient to remove the anchor bolt when it needs to be disassembled. Twist to improve disassembly efficiency.

The invention discloses an intelligent lock for a hoisting arm of a crane. The top end of the vehicle head is fixedly connected with bolts, the upper end of the locking mechanism is provided with a smart lock, the outside of the smart lock is provided with a limit frame, and the limit frame and the two locking plates on the locking mechanism are integrally formed, so The upper end of the locking plate is provided with a connecting plate, and there are two connecting plates. It realizes that when the safety officer issues a command to allow the crane to perform the lifting, the smart lock is turned on, and the boom can work. When the crane completes the lifting task, the boom is retracted and lowered, the smart lock locks the boom, and the status information of the smart lock is fed back. The system can effectively improve the safety factor of the hoisting arm of the crane and achieve the purpose of safe locking and use.

The invention discloses an indoor wall surface decorative sheet installation structure and an installation method thereof, and belongs to the technical field of architectural decoration. An installation frame of the indoor wall surface decorative sheet installation structure includes a first fixing groove and a second fixing groove, a third fixing groove is further fixedly connected between the first fixing groove and the second fixing groove through a plurality of height-adjustable parts, buffer assemblies are arranged in the first fixing groove, the second fixing groove and the third fixinggroove, a decorative sheet is provided with fixing bars matched with the first fixing groove, the second fixing groove and the third fixing groove, the fixing bars are slidably connected with the first fixing groove, the second fixing groove and the third fixing groove correspondingly, and limiting parts for preventing the fixing bars from sliding out of the first fixing groove and the second fixing groove are arranged at the ends of the first fixing groove and the second fixing groove. The indoor wall surface decorative sheet installation structure is simple, the stability is good, and quickinstallation and disassembly can be realized.

The invention discloses a central part support mechanism and a machined fixing device for an engine casing, relates to the technical field of machining, and includes a sleeve and a pillar, the pillar is movably socketed in the sleeve, and the top of the pillar is used for Support the central part of the engine casing, the sleeve and the pillar are also connected by a spring, and also include a support assembly, the support adjustment assembly includes a slope block, which has a first support slope, and an adjustment rod, which is connected to the The sleeve is screwed, and the rotation of the adjustment rod drives the inclined plane block so that the first supporting inclined plane and the second supporting inclined plane on the pillar are wedge-shaped to achieve support. The present invention can support the central part of the engine casing Adaptive support has good adaptability, which is beneficial to prevent the thinner part of the central part of the engine casing from being prone to concave deformation during machining, and at the same time effectively avoid the existing high-frequency vibration during machining. The thread support mechanism is easy to loosen.

The invention discloses a pier column formwork for road and bridge construction, which comprises two half formworks, T-shaped card slots are provided at the adjacent ends of the two half formworks, and the two adjacent card slots An I-shaped plate is interposed, and a top plate is fixed on the end of the I-shaped plate away from the inner side of the half-formwork, and the end of the top plate extends to the outside of the outer wall of the half-formwork, and two The two arc-shaped plates attached to the outer wall, each of the arc-shaped plates has a socket through it, and a U-shaped bar is arranged on the outside of the joint of the two half-formworks. The present invention inserts the I-shaped plate to connect and fix the half-formwork, which avoids the problem of easy loosening of the traditional fixation by the outer hoop, and then through the continuous contact and impact of the impact ball with the half-formwork and the upward movement of the top plate, the concrete and the retaining plate are realized. The detachment of the connection between the board and the half-formwork realizes quick demoulding and avoids damage to the board or pier.

A reversible KBO control and protection switch disclosed by the invention comprises a control protection switch and wiring blocks, the two sides of the outer wall of the control protection switch are fixedly connected with the wiring blocks, the two sides of the rear part of each wiring block are provided with mounting holes, a secondary wiring sheet is installed inside the upper part of each wiring block, the secondary wiring sheets are electrically connected with a cable, a switch assembly is installed on the front side of the control and protection switch, and an adjusting assembly is installed below each wiring block. According to the reversible KBO control and protection switch, an threaded rod is driven to rotate through cooperation of the threaded rod, a sliding block, a supporting rod, a cross rod, a rotating shaft, a movable groove block and the secondary wiring sheets, so that the threaded rod can drive the sliding block and the supporting rod to drive the cross rod to move backwards, and the position of the cable in use can be limited through the fixed groove block and the movable groove block; and the problem that a plurality of cables are easily mixed together due to the fact that an existing control and protection switch is not limited after wiring is completed is solved.

The invention discloses a mobile device support. The support comprises a shell, a clamping arm, a lower supporting arm, a linkage mechanism and a reset mechanism, wherein the clamping arm and the lower supporting arm are movably connected relative to the shell, the linkage mechanism comprises a gear rotatably arranged on the shell, and the lower supporting arm is in transmission connection with the clamping arm through the gear; the reset mechanism comprises a reset key and a guide part for slidably connecting the reset key with the gear, when the lower supporting arm moves in the direction away from the shell under the action of gravity of an object placed on the lower supporting arm, the gear is driven to rotate in the first direction, and the gear drives the clamping arms to oppositelymove to be in a clamping state of clamping the object; when the reset key is pressed, the reset key drives the gear to rotate in the second direction through the guide part, the gear drives the clamping arms to move oppositely to be switched to an unlocking state for loosening the object, and the lower supporting arm moves in the direction close to the shell to return to the initial position; evenif a user vibrates and jolts in the using process, the mobile equipment on the mobile equipment support cannot fall off from the interior of the support.

The invention relates to the field of washing machine door locks, in particular to a washing machine door lock. The washing machine door lock comprises a door lock, an elastic piece, a lower locking piece, an upper locking piece, a sliding block, a protection shell, a first microswitch, a second microswitch, a rotary table and a drive device. The door lock comprises a door lock body and a front panel; the front panel is arranged at one end of the door lock and is connected with the door lock body; the door lock body is provided with a first groove and at least two second grooves; the lower locking piece is provided with a first parallel part; and at least two upper lugs matched with the second grooves are arranged on the upper end face of the first parallel part. The invention aims to provide the washing machine door lock; the door lock can be automatically unlocked when drying is started, so that the heat dissipation of the drying process is realized, meanwhile, the stability in unlocking the door lock is improved, and the problems that the washing machine door lock is easy to get loosened and has low safety are solved.

The invention discloses a novel electric single-beam suspension type crane which comprises a cross beam, a second shell and a third transmission rod. Bearings are installed at the two ends of the cross beam in a penetrating manner, a first shell is installed at the bottom of the cross beam, a first transmission rod is rotatably installed in the first shell, a sleeve rod is installed on the first transmission rod in a sleeving manner, and a connecting plate is installed at the bottom of the sleeve rod; and a third shell is installed on the top of the cross beam, an electric power chamber is arranged in the third shell, a signal transceiver is installed in the electric power chamber and below a single-chip microcomputer, and the third transmission rod is installed in the bearings in a sleeved manner. According to the novel electric single-beam suspension type crane, the electric power chamber is arranged in the third shell, a remote base station is used for transmitting a control command to the signal transceiver, the signal transceiver transfers the command to the single-chip microcomputer, the single-chip microcomputer controls related electric appliances to work according to the control command, the problem that a traditional crane is not flexible enough in use due to pre-programming is solved, and the use convenience of the crane is effectively improved.

The invention discloses a center part supporting mechanism and a machining fixing device of an engine shell, and relates to the technical field of machining. The center part supporting mechanism comprises a sleeve and a supporting column, the supporting column is movably connected into the sleeve in a sleeved manner, the top of the supporting column is used for supporting the center part of the engine shell, and the sleeve and the supporting column are further connected through a spring; and the center part supporting mechanism further comprises a supporting assembly, the supporting adjusting assembly comprises an inclined plane block and an adjusting rod, the inclined plane block is provided with a first supporting inclined plane, the adjusting rod is in threaded connection with the sleeve, and the adjusting rod rotates to drive the inclined plane block so that a first supporting inclined plane can be matched with a second supporting inclined plane on the supporting column in a wedge-shaped manner to achieve supporting. According to the center part supporting mechanism, the center part of the engine shell can be supported in a matched manner, good adaptability is achieved, the situation that a thin part of the center part of the engine shell is prone to inward concave deformation during machining is prevented, and meanwhile, the problem that an existing thread supporting mechanism is prone to loosening during machining high-frequency vibration is effectively solved.

The invention relates to the technical field of assembling parts and components of a piston type compressor, in particular to a split fastening device for a crosshead part. The split fastening devicefor the crosshead part comprises a crosshead body, a crosshead nut cap located at the upper end of the crosshead body and a longitudinal piston rod fixed in the crosshead nut cap. The split fasteningdevice for the crosshead part provided by the invention is inserted into an assembly groove in an external threaded connecting ring through a built-in steel plate provided with a fastening steel plateand is in threaded connection to the external threaded connecting ring by means of an external annular connecting cover to connect a fastening groove in the inner side face of the fastening steel plate and the surface of the crosshead nut cap in a clamping manner, so that the problem that the piston rod is likely to loosen under the circumstance that a small and medium-sized compressor is excessively great in reciprocating inertial force, long in working time and high in working strength is solved, and the continuous working safety and reliability of the compressor are improved effectively.