10results about How to "Short answer structure" patented technology

The utility model discloses a shrub litter collecting device, which belongs to the technical field of plant litter collection and comprises a collecting mechanism and a supporting mechanism, and the collecting mechanism is detachably connected with the supporting mechanism. The collecting mechanism comprises a collecting net, the collecting net is of a drawing rope type net structure, a strainer is arranged at the connecting position of the collecting net and the supporting mechanism, and the strainer is arranged at an opening of the collecting net in a sliding mode and used for controlling opening and closing of the opening of the collecting net. According to the shrub litter collecting device, the collecting net of the drawing rope type net structure is matched with the supporting mechanism, the opening of the collecting opening can be adjusted, the length and the angle of the supporting mechanism can be adjusted, and the shrub litter collecting device is suitable for collecting large-area shrub litter; the system has the advantages of simple structure, low cost and simple arrangement mode.

The circular knitting machine protection net with the protection function comprises a containing groove, the lower end of the containing groove is fixedly connected with a lower connecting plate, the side, away from the containing groove, of the lower connecting plate is fixedly connected with a bottom plate, a stand column is arranged in the middle of the upper portion of the bottom plate, and the containing groove is fixedly connected with the upper portion of the stand column through an upper connecting plate. A plurality of baffles are arranged between the upper connecting plate and the lower connecting plate, any two adjacent baffles are movably connected through hinges, positioning blocks are arranged at the upper end and the lower end of the baffle close to one side of the storage groove, and positioning grooves matched with the positioning blocks are formed in the inner wall of the storage groove. The protective net for the circular knitting machine is simple in structure and convenient to operate, the circular knitting machine can be protected by placing the protective net, personnel can enter and exit conveniently, and convenience in the maintenance process of the circular knitting machine is effectively improved.

The utility model provides a high-speed bar production line finishing mill rocker arm oil film bearing installation device which comprises a rolling mill rocker arm, a shaft hole is formed in the rolling mill rocker arm, a connecting sleeve coaxial with the shaft hole is detachably arranged at the outer end of the shaft hole, and the inner diameter of the connecting sleeve is consistent with the inner diameter of the shaft hole. A pressing sleeve is arranged in the connecting sleeve, and the pressing sleeve is in clearance fit with the connecting sleeve and can move in the connecting sleeve in the axial direction. The connecting sleeve is arranged, the pressing sleeve is arranged in the connecting sleeve, the oil film bearing in the connecting sleeve is pressed into the shaft hole through the pressing sleeve, installation is completed, and compared with a manual installation mode, the oil film bearing moves stably in the installation process, pressing deviation is not prone to occurring, the installation effect is good, and the installation speed is high; the structure is simple, and the use mode is convenient.

The utility model belongs to the field of ventilation opening protection windows, and discloses a ventilation opening small window structure with a rat-proof function, which comprises an outer frame and an inner frame, the inner frame is slidably connected with the outer frame, the inner frame is connected with a protection grid, the inner frame is provided with an installation device, the installation device comprises a bidirectional threaded rod, the inner frame is provided with a limiting chute, and the bidirectional threaded rod is rotatably connected with the inner frame. The two ends of the bidirectional threaded rod are in threaded connection with limiting square rods correspondingly, the limiting square rods are in sliding connection with the limiting sliding grooves, the outer frame is provided with limiting holes, the bidirectional threaded rod is connected with a driven bevel gear, the inner frame is rotationally connected with a rotating rod, the rotating rod is connected with a driving bevel gear, the driving bevel gear is meshed with the driven bevel gear, and the rotating rod is connected with a screwing block. According to the technical scheme, when the protective grating needs to be replaced subsequently, only the screwing block needs to be rotated, the inner frame can be conveniently and rapidly disassembled from the outer frame, other tools are not needed, the structure is simple, operation is convenient, the protective effect is greatly improved, and practicability is greatly improved.

The utility model relates to the technical field of oil and gas field gas production processes, in particular to a buffer device for sand-containing media, which comprises a cavity structural member, the cavity structural member is provided with a buffer cavity, a fluid inlet and a fluid outlet, the fluid inlet and the fluid outlet are both communicated with the buffer cavity, and the fluid inlet is communicated with the buffer cavity. The fluid inlet and the fluid outlet are arranged in a staggered manner; the buffer cavity is provided with a buffer core, the buffer core is nested in the buffer cavity, and the buffer core is used for reducing the speed of a sand body in the sand-containing medium; the fluid inlet and the fluid outlet are arranged in a staggered mode, the sand-containing medium entering the buffer cavity is decelerated through the opposite force generated when the sand-containing medium impacts the cavity wall of the buffer cavity, the sand body of the sand-containing medium is decelerated through the buffer core, and therefore the speed of the sand body flowing out of the fluid outlet is reduced, and the sand body erosion force in the medium can be effectively reduced; and therefore, the piercing-leakage frequency of the rotary buffer device and a downstream pipeline is effectively reduced.

The utility model relates to the technical field of dust removers, in particular to a dirt cleaning system of a dust remover, which is characterized in that an external hanging bin communicated with a dust collecting box is externally hung on the side edge of the dust collecting box, a chain bucket device is arranged in the dust collecting box and comprises a truss, and a driving roller driven by a driving device and a driven roller matched with the driving roller are arranged on the truss. A chain sleeves the driving roller and the driven roller, at least one excavator bucket is fixedly connected to the chain, and a steel chain is jointly connected between the driven roller on the truss and the winch, so that stable lifting of the truss can be realized; sludge deposited at the bottom of the dust collection box is fed into the external hanging bin and discharged out of the external hanging bin through a pumping system or an opening and closing door arranged at the bottom of the external hanging bin, and the device is simple in structure and high in sewage disposal efficiency.

The invention discloses a circuit board unloading device and a welding system, the circuit board unloading device is applied to circuit board welding, and the circuit board unloading device comprises a carrier, a jacking assembly and a controller; the carrier comprises a carrier body; the pressing assembly comprises a first hinging piece, an abutting rod and a pressing plate, and the abutting rod is used for pressing or releasing the circuit board; the swing assembly comprises a second hinge piece and a swing rod, and the swing rod is used for driving the second end of the pressing plate to descend so as to lift the first end of the pressing plate; the jacking assembly comprises a jacking rod and a center plate, the jacking rod is used for pushing the second end of the swing rod to ascend, and the center plate is used for penetrating through the through groove and jacking the circuit board; the controller is used for controlling the jacking assembly to act when it is obtained that the carrier moves to the position corresponding to the jacking assembly. The circuit board unloading device is simple in structure, convenient to operate and small in occupied space, the unloading efficiency of the circuit board can be effectively improved, full-automatic unloading of the circuit board is achieved, damage to the circuit board is reduced, and the overall production efficiency of the circuit board is improved.

The utility model provides a flue gas flow uniform distribution plate device which comprises a flue which comprises a horizontal section and a vertical section, and is characterized in that a first guide plate, a second guide plate, a third guide plate and a fourth guide plate which are obliquely arranged are sequentially arranged on the upper side of the inner wall of the horizontal section close to the vertical section, the first guide plate is of a rectangular structure, and the second guide plate is of a rectangular structure. And the second flow guide plate, the third flow guide plate and the fourth flow guide plate are of fan-shaped structures. The inclined guide plates are arranged on the upper side of the horizontal section of the flue, flue gas on the upper side of the horizontal section of the flue is guided to the lower side through multiple guide of the guide plates, the flowing speed of the flue gas on the upper side is increased, and smoke dust is effectively prevented from being deposited in the flue, blocking the flue and affecting smoke exhaust; the area of the flow guide plate is gradually increased, so that the normal flow of smoke on the lower side of the horizontal section is effectively prevented from being influenced by excessive flow guide of smoke at one time; the structure is simple and the manufacturing cost is low.

The utility model discloses a kind of nanocrystalline magnetic ring processing is used loading device, including workbench, the upper middle part of workbench is equipped with storage tank, two inside the storage tank are equipped with downwardly inclined guide plate, motor is equipped with below the guide plate in the storage tank, motor rotating shaft is fixedly connected with driving roll shaft and penetrates storage tank, driven roll shaft is equipped with in the storage tank and away from driving roll shaft side, it is driven by transmission belt driving connection between driving roll shaft and driven roll shaft, the side wall of the storage tank is equipped with guide inlet in driving roll shaft side, storage tank is equipped with undergate below guide inlet, shaft rod is equipped with in the storage tank and above driven roll shaft, shaft rod outside is equipped with pusher roll shaft plate. This kind of loading device structure is simple and easy to understand, and it is convenient to load magnetic ring, and loading stability is good, avoid the phenomenon that magnetic ring appears damage in loading process, effectively improve the processing efficiency of magnetic ring.

The utility model belongs to the technical field of desks, and provides a desk shape switching mechanism and a study desk with the desk shape switching mechanism, the desk shape switching mechanism comprises a first desk plate and a second desk plate which are arranged on a desk body, and the desk shape switching mechanism further comprises a storage assembly and a locking assembly; wherein the storage assembly is arranged on the first table board, the second table board is provided with a first position and a second position, when the second table board is located at the first position, the second table board is located on the front side of the first table board, the top face of the second table board is flush with the top face of the first table board, and when the second table board is located at the second position, the second table board is stored in the storage assembly; the locking assembly is arranged on the second table board and / or the first table board and used for keeping the second table board at the first position. The desk shape switching mechanism and the study desk are simple in structure and reasonable in design, and the second desk plate is convenient to store.