14results about How to "Realize automatic limit" patented technology

The invention discloses a water conservancy pipeline lifting and transporting device, and belongs to the technical field of water conservancy projects. A water conservancy pipeline lifting and transporting device comprises a support provided with a movable sliding way, and further comprises a winch fixedly arranged on the support, and the winch is connected with a sliding block sliding in the movable sliding way through a traction rope; the hydraulic rod is fixedly connected with the sliding block, a mounting plate is connected to the bottom of the hydraulic rod, and hoisting mechanisms used for hoisting the pipeline body are arranged on the two sides of the mounting plate correspondingly; wherein the hoisting mechanism comprises a connecting seat fixedly connected with the mounting plate, and the connecting seat is provided with a self-clamping assembly and an anti-falling assembly matched with the self-clamping assembly; according to the pipeline lifting device, a pipeline body can be conveniently and automatically clamped and limited, tedious hooking by workers is not needed, the pipeline lifting and hoisting efficiency is improved, the pipeline body is limited through the anti-disengagement assembly, and the risk that the pipeline falls off in the lifting and transporting process is avoided.

The utility model discloses an assembly type microscope support, which comprises a base and a fixed block, the base is provided with a clamping groove, the clamping groove is internally provided with two groups of support frames, the outer wall of each support frame is connected with a second magnetic block, the inner side of each support frame is rotatably connected with a rotating block, and the fixed block is connected with a second magnetic block. A rotating shaft is connected to one side of the rotating block, the end, away from the rotating block, of the rotating shaft is connected with a limiting mechanism, and the fixing block is arranged at the bottom of the base and connected with the first magnetic attraction block through a spring set. According to the assembly type microscope support, when the assembly type microscope support does not need to be used, a worker can manually pull out a supporting frame from the interior of a clamping groove, then a rotating shaft is rotated to store a limiting mechanism to the inner side of the supporting frame, and then the supporting frame is fixed to the bottom of a base through the magnetic attraction characteristics of a second magnetic attraction block and a first magnetic attraction block; and on the contrary, the device can be quickly assembled, so that the portability of the device can be improved.

The utility model discloses a gas-liquid mixing reaction device and an alkaline wastewater treatment system, and belongs to the field of wastewater treatment.The gas-liquid mixing reaction device is characterized in that a motor and a bearing seat are fixed at the bottom of a tank body, a first gear is fixed at the bottom end of the motor, and a hollow rotating shaft penetrates through the bearing seat and the bottom wall of the tank body; a second gear is fixed to the hollow rotating shaft, one end of an air inlet pipe communicates with a carbon dioxide source, the other end of the air inlet pipe extends into the hollow rotating shaft, a sealing piece is arranged between the air inlet pipe and the hollow rotating shaft, and the top end of the hollow rotating shaft fixedly communicates with a hollow exhaust plate; a plurality of first exhaust holes are formed in the top wall of the hollow exhaust plate, and the descaling assembly is detachably arranged on the hollow exhaust plate. According to the utility model, rotary gas distribution and rotary descaling are carried out while stirring and mixing are carried out, rising gas and downflow liquid are combined to contact and transfer mass in the filler assembly, the whole gas-liquid mixing is uniform, and the reaction efficiency is high.

The utility model discloses a color electronic product packing box with a built-in buffer structure, which relates to the technical field of electronic product packing appliances and comprises a top plate, a bottom plate and a box body, the bottom plate and the top plate are of an integrated paperboard integral structure, the box body is fixedly connected above the bottom plate, a groove is formed in the top plate, a magnet is arranged at the side end of the box body, and guide grooves are symmetrically formed in the top end of the box body. The guide grooves are located in the inner side wall of the box body, a cover plate is arranged between the guide grooves, two clamping blocks are symmetrically arranged on the two sides of the cover plate, air bag chambers are arranged at the four corners in the box body, and buffer plates are arranged between the air bag chambers. According to the utility model, through the cooperation of the air bag chamber and the buffer plate, the multi-layer buffer is realized, the impact-resistant buffer effect is improved, the protection function of electronic products with different sizes is realized, through the cooperation of the clamping block, the guide groove and the limiting hole, the stable opening and closing control of the cover plate is realized, the operation convenience and the sealing performance of the structure are improved, and the production cost is reduced. And the stability of the packaging box during repeated use is improved.

The application discloses a new energy automobile maintenance platform and belongs to the technical field of maintenance platforms. The new energy automobile maintenance platform comprises a base, a support arranged on the base, a hydraulic oil cylinder fixedly arranged on the support, a piston rod of the hydraulic oil cylinder, a side plate connected with the piston rod, a lifting seat connected with the side plate, two wheel seats connected through a connecting plate, a wheel groove arranged on the wheel seat, a limiting seat arranged on the end of the wheel groove, a force relieving and buffering assembly arranged on the limiting seat, a self-positioning limiting assembly arranged at the front end of the wheel seat, and a transmission component arranged between the self-positioning limiting assembly and the force relieving and buffering assembly. The application can automatically limit the automobile wheel when the automobile is lifted, avoids shaking of the automobile during maintenance, is simple to operate, and effectively improves the automobile maintenance efficiency.

This utility model discloses an assembled soil tamping device, including a handle and a tamping head. The tamping head has a threaded cylinder with four reinforcing ribs. A limiting hole is formed on the bottom side wall of the threaded cylinder. A threaded head is provided at the bottom of the handle, and a limiting mechanism is provided on the threaded head. The limiting mechanism includes an upper sliding cavity and a lower sliding cavity formed on the threaded head, and the two are interconnected. A sliding plate is provided inside the lower sliding cavity, and a spring is provided inside the lower sliding cavity at the bottom of the sliding plate. By setting the threaded cylinder and threaded head, an assembled connection between the handle and the tamping head is achieved, facilitating disassembly and assembly. During transportation and storage, the handle and the tamping head can be separated, reducing space occupation and making it easy to carry and store. The limiting mechanism, through the elastic force of the spring, causes the limiting head to automatically extend and insert into the limiting hole, achieving automatic limiting between the handle and the tamping head, preventing loosening of the threaded connection, and improving the stability and safety of the connection.

The utility model discloses an urban road lighting street lamp which comprises a supporting seat, a street lamp pole and a lighting lamp, and further comprises a pair of hoops used for jointly and tightly holding the street lamp pole; the number of the supporting blocks is one pair, the two ends of one hoop are fixedly connected with the corresponding supporting blocks correspondingly, and the two ends of the other hoop are connected with the corresponding supporting blocks through fastening screws correspondingly; the limiting ring grooves are formed in the street lamp pole, and the two hoops can be clamped into the limiting ring grooves correspondingly; the number of the suspension rings is two, and the suspension rings are fixed to the bottoms of the corresponding supporting blocks respectively. By forming the limiting ring groove allowing the hoop to be clamped into in the street lamp pole, automatic limiting of the hoop in the vertical direction is achieved, so that the connection stability between the hoop and the street lamp pole is improved, meanwhile, due to the design, the stable connection between the hoop and the street lamp pole can be achieved without excessively tightening a fastening screw on the hoop, and the practicability is high. The risk of damage to an antirust layer on the surface of the street lamp pole is reduced.

The utility model provides portable noise detection equipment, which belongs to the technical field of noise detection equipment, and comprises a cylinder, a cavity is defined in the cylinder, the cylinder is provided with an opening communicated with the cavity, the opening of the cylinder is detachably connected with a sealing cover, a pressing plate is movably arranged in the cavity, an equipment body is arranged on the pressing plate, and the equipment body is provided with an air inlet and an air outlet. A movable rod is arranged at the end, deviating from the equipment body, of the abutting plate, a compressed air bag is arranged in the cylinder, the end, deviating from the abutting plate, of the movable rod abuts against the compressed air bag, and the protective air bag surrounds the equipment body and is arranged on the inner wall of the cylinder and is provided with an attaching face similar to the outer wall of the equipment body in an inflated state. The protective air bag communicates with the compressed air bag through a pipeline. By arranging the protective air bag, the compressed air bag is extruded when the equipment body moves, so that the protective air bag is changed into an expanded state from a compressed state, all-around protection on the equipment body is achieved, and the protection effect on the equipment body is improved.

The utility model discloses a novel integrated anti-falling well lid, which belongs to the technical field of well lids, and comprises a mounting area arranged on the outer circumferential surface of a well hoop, a well lid main body hinged to the upper end of the mounting area, a connecting block rotatably connected to the inner wall of the mounting area, a connecting steel ring fixedly connected to one end of the connecting block, and a connecting steel ring fixedly connected to the other end of the connecting block. The inner wall of the connecting steel ring is welded with a warning tripod and a metal anti-falling net, one side of the metal anti-falling net is welded with a warning mark, the metal anti-falling net and the well hoop can be integrally arranged, the metal anti-falling net can be opened through rotation of the connecting steel ring during maintenance, the metal anti-falling net is prevented from being disassembled, the phenomenon of secondary missing installation is completely eradicated, and if the maintenance period is long, the metal anti-falling net is not damaged. When the well lid is difficult to recover sometimes, the warning tripod and the warning mark on the metal anti-falling net can remind passing personnel, the possibility that non-construction personnel get close to the well lid is reduced, and potential safety hazards are greatly reduced.

The utility model relates to the technical field of showcase lighting, specifically relates to a light guide plate mounting assembly suitable for showcase, including aluminium frame, limiting component, limiting component installs in one side of aluminium frame, and limiting component is used for fixed position of light guide plate, heat dissipation component, heat dissipation component installs in one side of aluminium frame, and heat dissipation component is used for heat dissipation. Compared with prior art, the application realizes automatic position limiting and firm fixing of light guide plate through the combination of limiting component and elastic compression structure, realizes the high -efficient heat dissipation of LED light source through the setting of heat dissipation component and air convection channel, prolongs light source life and guarantees the temperature stability inside showcase, and simultaneously, the installation and maintenance are simple and convenient, improve the uniformity and reliability of the overall lighting effect of showcase.

The application discloses an automatic assembling equipment for a model lower limb connector and belongs to the technical field of model processing. The automatic assembling equipment comprises a model transfer trolley, a rack, a Y-direction linear module and an X-direction linear module. The X-direction linear module is fixedly installed above the rack, and the Y-direction linear module is fixedly installed at the output end of the X-direction linear module. The model transfer trolley is slidably connected in a feeding and discharging channel formed below the rack. A leg supporting rod is fixedly installed in the model transfer trolley. A slot is integrally formed at the lower leg position of the model lower limb, and the leg supporting rod can be inserted into the slot. A splicing plate is integrally formed at the top of the model lower limb, and a connector can be embedded in the groove on the upper surface of the splicing plate. First and second limiting components for limiting the two ends of the model transfer trolley are respectively installed at the two ends of the feeding and discharging channel. Through the above mode, the power of the belt conveyor is utilized to automatically limit and release the model transfer trolley, and the feeding and discharging are facilitated.

The invention relates to the technical field of flat wire production, and discloses a flat wire take-up machine which comprises a bottom plate, a rail arranged at the top of the bottom plate, a sliding seat slidably connected with the top of the rail and a rotating mechanism at the top of the sliding seat, the rotating mechanism comprises a rotating shaft, a first disc body and a take-up reel, and the rotating shaft is arranged at the top of the sliding seat through a bearing seat; the first disc body is arranged at one end of the rotating shaft, and the second disc body is fixed to one end of the first disc body. A fourth transmission wheel is fixed to the outer side wall of the rotating shaft, a third shaft body is fixed to one end of the rotating shaft, a rotating air cylinder is fixed to one end of the third shaft body, a limiting mechanism is arranged on the rotating shaft, and the rotating air cylinder is used for controlling the limiting mechanism to expand or contract, so that the limiting mechanism limits the take-up reel; after the take-up reel finishes take-up, the limiting mechanism rapidly expands or contracts through work of the rotary air cylinder, and therefore automatic limiting and releasing of the take-up reel are achieved. By means of the design, manual intervention is remarkably reduced, and production efficiency is improved.

The utility model discloses a modularization building transportation anti-overturning limiting frame and transportation system, include: bottom plate, be equipped with limiting truss on it, limiting truss includes vertical support subassembly, horizontal limiting subassembly, hydraulic support, and vertical support subassembly includes two pairs of stand, and the sliding is established in bottom plate, and the top connection track of two pairs of stand forms rectangle, and horizontal limiting subassembly includes a pair of limiting plate subassembly, and every limiting plate subassembly connects a pair of adjacent stand, and a pair of limiting plate subassembly forms limiting space between, is used for limiting to the carrying goods, and a pair of limiting plate subassembly opposite stand's side still is equipped with the separator, and a pair of limiting plate subassembly between is equipped with hydraulic support, to adjust the distance between a pair of limiting plate subassembly, laser scanning component, establish in limiting truss, is used for identifying the edge contour of carrying goods, control component, with laser scanning component and hydraulic support electricity is connected. Realize the automatic limiting of modularization building of different size and shape.

This utility model provides a safety clamp device to prevent furnace shell cracking, comprising: multiple connectors, each connector including an arc-shaped plate with a groove on one side and a reinforcing plate fixedly installed on the other side of each arc-shaped plate; and multiple elastic components, each elastic component being disposed inside the reinforcing plates and including a fixing tube. This safety clamp device to prevent furnace shell cracking utilizes the interplay of connectors, elastic components, and anti-slip plates. During use, the elasticity of the spring pushes the extension rod, causing the anti-slip plate to abut against the furnace body, automatically limiting the movement of the connectors. This eliminates the need for operators to hold the clamp device for extended periods during furnace heating, reducing operator fatigue.