97results about How to "Quick plug" patented technology

The utility model discloses a splicing type diode assembly convenient for rapid plugging and replacement, which relates to the technical field of diodes, and comprises a diode body, one side of the diode body is provided with a plugging and splicing replacement mechanism, the plugging and splicing replacement mechanism comprises a plugging block, and one side of the diode body is fixedly connected with the plugging block. According to the utility model, through the arrangement of the plugging, splicing and replacing mechanism, the effect of splicing and replacing the diode can be achieved by rapidly plugging the diode, and during the use process, the situation that the diode is damaged and needs to be welded or disassembled by using a tool when the diode cannot be rapidly plugged, spliced and replaced can be avoided; the utility model aims to solve the problems that the existing diode assembly is easy to replace, the maintenance time and difficulty are increased, the maintenance efficiency is reduced, other elements are damaged due to improper operation for some complex circuits, the debugging is inconvenient, the debugging process becomes tedious, the debugging period is prolonged, and the research and development of products are influenced, and the practicability and replacement efficiency of the diode assembly are ensured.

This utility model discloses an integrated panel with integrated quick-connect connectors, comprising an integrated panel that integrates a signal connector, a heating connector, a high-voltage connector, and an MSD switch. The signal connector includes a screwless, quick-connect external signal plug and a signal internal quick-connect socket on the integrated panel. The heating connector includes a screwless, quick-connect heated external plug and a heated internal quick-connect socket on the integrated panel. The signal connector and heating connector of this utility model are connected using a screwless quick-connect method on the integrated panel, which simplifies the customer assembly process and makes quality control easier during panel production. Furthermore, it eliminates the need for additional waterproofing structures at the screw points, resulting in a clever structure, ease of use, and high reliability.

The application belongs to the technical field of direct current substation, and particularly relates to a battery internal resistance detection device. The application comprises an embedded monitoring host module for receiving and displaying battery internal resistance data, having an alarm and a background monitoring communication interface, the embedded monitoring host module being connected with a communication module, the embedded monitoring host module being connected with an information convergence module through the communication module, the information convergence module being connected with a single-section internal resistance sampling module, the single-section internal resistance sampling module being connected with a battery module; wherein the number of the single-section internal resistance sampling modules is the same as the number of the battery modules, each single-section internal resistance sampling module is directly connected with each corresponding battery module through a short connecting line, and is connected in parallel to the information convergence module through a pressure contact crystal head connecting line. The application has the advantages of efficient expansion, adaptation to different sizes of battery groups, short sampling line distance, simple installation process, high detection precision, low cost and good adaptability of the device.

The utility model discloses a fire-fighting pipeline air tightness detection device, and relates to the technical field of pipe fitting air tightness detection, in particular to a fire-fighting pipeline air tightness detection device, which comprises a pipe fitting, a working table, a driving part, a clamping part and a detection part, and is characterized in that the pipe fitting is placed on the working table; the second gear is driven by the motor to rotate, the clamping plate and the plugging plate are driven to act at the same time, and rapid clamping and plugging of the pipe fitting are achieved. Compared with the prior art, the two ends of the pipeline do not need to be operated respectively, the operation steps are greatly simplified, and the detection efficiency is improved. Specifically, after the motor is started, the second gear drives the two clamping plates and the two plugging plates to be close to the pipe fitting at the same time through cooperation of the annular groove and the supporting column. The clamping plate firstly makes contact with the pipe fitting and clamps and limits the pipe fitting, then the plugging plate continues to move to plug the two ends of the pipe fitting, the whole process is completed at a time, repeated manual adjustment is not needed, and the detection speed and convenience are remarkably improved.

The utility model provides a protective cover and an industrial camera with the protective cover. The protective cover comprises a bottom shell, an upper cover, a control circuit board, a connector, the protective cover and a driving mechanism. The bottom shell comprises a bottom plate and side plates connected with the bottom plate, and the bottom plate and the side plates define a containing space with an opening in the top. The upper cover is detachably connected with the bottom shell and used for sealing the top opening. The control circuit board is located in the containing space. The connector is arranged outside the bottom plate, one end penetrates through the bottom plate to be electrically connected with the control circuit board, and the other end is used for being electrically connected with a power supply circuit in a plug-in mode. The protective cover and the bottom shell are rotationally connected, and optionally, the protective cover and the bottom shell are rotationally connected through a first rotating shaft. In the closed state, the protective cover is located on the outer side of the side plate, and the lower edge of the protective cover is located below the bottom plate and exceeds the outer wall of the bottom plate by a preset distance. The driving mechanism is partially located in the containing space, electrically connected with the control circuit board and used for driving the protective cover to rotate under the control of the control circuit board. The protective cover can be suitable for various types of products to be protected.

The utility model discloses a kind of circuit board heat dissipation equipment, including circuit board body and integrated frame, the side of the circuit board body is equipped with integrated frame, two-way screw rod is movably installed in the inside of integrated frame, servo motor is installed on the side wall of integrated frame, and the output end of servo motor is connected with two-way screw rod, two groups of threaded sleeve are sleeved on the surface of two-way screw rod, and threaded sleeve is connected with two-way screw rod, the bottom end of threaded sleeve is all equipped with fin, sliding rail is installed on the side wall of circuit board body in the side of integrated frame, the bottom end of fin is all equipped with sliding block, and sliding block is slidably connected with sliding rail, the other side of circuit board body is provided with mounting box body. The utility model not only realizes the quick plug-in dismounting circuit board of convenient, facilitate multiple flexible adjustment heat dissipation to circuit board, and improve the effect of circuit board heat dissipation and the convenience of dismounting.

The utility model relates to the technical field of composite busbars, and discloses a quick-plug type composite busbar, which comprises a power composite busbar, a high-voltage connector and a capacitor composite busbar. The power composite busbar is provided with a connecting plug, and the connecting plug is inserted and clamped in the high-voltage connector. The capacitor composite busbar is provided with an external interface, and the external interface is fixedly connected to the bottom of the high-voltage connector. According to the quick-plug type composite busbar, the external interface of the composite busbar has a quick plugging function, and meanwhile, the quick-plug type composite busbar is simple to disassemble and maintain, and is beneficial to shortening the maintenance period of the functional module and reducing the maintenance cost.

The utility model discloses a fixed wing aircraft main wing oil tank quick release structure, including main wing and oil tank, and be used for connecting the connecting mechanism of main wing and oil tank, the connecting mechanism includes oil tank fixing piece, the one side of oil tank is provided with the installation slot for installing oil tank fixing piece, the one side of main wing is equipped with main wing fixing piece in oil tank, the one side of main wing fixing piece is equipped with wire material plug no. 1 away from main wing, wire material plug no. 1 is connected with main wing fixing piece through wire material plug fixing piece no. 1, the installation slot is equipped with wire material plug no. 2 that is adapted with wire material plug no. 1. Through the double buckle setting of oil tank fixing piece and main wing fixing piece, make oil tank installation more firm, accurate guidance when installing can make material wire plug and installation butt joint more smooth, and wire material plug need not screw quick plug -in, and oil tank front end installs LDE lamp, and oil tank bottom installs skid, can play the protection function when the airplane lands.

The utility model relates to the technical field of step induction, and disclose a kind of step induction mechanism for mould, including limiting mechanism and induction mechanism, the induction mechanism is located in the inside of limiting mechanism, the limiting mechanism includes fixed base, vertical shaft is rotatably connected in the inside of fixed base.The step induction mechanism for mould, with the advantages such as convenient dismounting, solve in mould production, step induction mechanism is important to control mould opening and closing, guarantee product quality.But existing mechanism has obvious defect: its structure is complex, many parts, rely on professional personnel and a variety of tools fine adjustment when assembling, time-consuming and labor-consuming;Operation is mainly automated, and it cannot meet the demand of artificial flexible adjustment in trial stage, leading to inefficient trial and high cost;When maintaining, a large number of associated parts need to be disassembled for replacing the wearing parts, which is not only troublesome but also easy to damage other components, and the tail material cannot be taken out in time, which often causes the production line to stop, seriously affecting the production progress and efficiency.

A three-way valve body with an emergency sealing structure belongs to the technical field of three-way valve bodies and comprises a valve body, a sealing partition plate A and two sealing partition plates B are fixedly mounted in the valve body and divide an inner cavity of the valve body into an air inlet cavity and a mixing cavity, two through holes are formed in the upper surface of the sealing partition plate A in a penetrating mode, and the two through holes are communicated with the air inlet cavity and the mixing cavity. The two ports are used for communicating with the corresponding air inlet cavities correspondingly, electric execution power sources are installed in the air inlet cavities in a penetrating mode correspondingly, pressing plates are fixedly installed on the lower surfaces of the electric execution units correspondingly, sealing rings are fixedly installed on the lower surfaces of the pressing plates, and sealing bases are fixedly installed at the ports in the upper surface of the sealing partition plate A; a plurality of contact rings are integrally formed on the upper surface of the sealing base, a plurality of adaptive grooves are formed in the lower surface of the sealing ring, the conical contact rings and the adaptive grooves can be utilized to form multi-stage sealing of multiple contact surfaces, and compared with a traditional single sealing ring, the pressure resistance and the sealing performance of the sealing structure are greatly improved.

The application provides a door and window with a guard grid, comprising: a door and window body; a connecting frame is fixedly installed on the top and bottom of the door and window body; a trapezoidal groove is formed on the top and bottom of the rear side of the door and window body; a plurality of guard grid bodies are slidably connected to the inner cavity of the door and window body; a trapezoidal block is fixedly installed on the top and bottom of the front side of the guard grid body; the trapezoidal block is slidably connected to the door and window body through the guard grid body; and a protective shell is fixedly installed on the front side of the door and window body. Through the design of the assembly, the worm and the worm gear are driven by rotating the rotating disc, the toothed plate moves the limiting rod, the single set of guard grid bodies can be quickly clamped or loosened, the efficiency is improved compared with the traditional mode, the trapezoidal block and the trapezoidal groove are slidably matched, the guard grid body can be quickly plugged in and pulled out along the door and window body, one person can operate, the guard grid body can be freely increased or decreased along the vertical direction of the door and window body, and different protection requirements, such as child protection and theft prevention, can be met.

The utility model discloses a modularized button self-locking type connector, which comprises a connector male end, a connector female end and a button self-locking mechanism, the outer side surface of a first shell is provided with a pressing groove, the inner side wall of a second shell is provided with a locking groove, and the pressing groove and the locking groove are matched with each other. The key self-locking mechanism comprises a pressing component slidably arranged in the pressing groove, a reset elastic body arranged between the bottom of the pressing groove and the pressing component and a containing groove, and the pressing component comprises an operation end exposed out of the first shell and a locking arm extending in the inserting direction. A lock catch structure matched with the locking groove is formed at the tail end of the locking arm. The technical scheme of the utility model aims to provide the connector which realizes stable connection through the self-locking structure after plugging is completed, and can prevent the connection reliability from being influenced by external force loosening.

The utility model relates to cleaning appliance technical field, especially a novel electric spray mop, including aluminium lower pole, the top of aluminium lower pole is equipped with aluminium upper pole through bolt mounting, the bottom of aluminium lower pole outer surface is equipped with right side cover, the left side of right side cover is equipped with left side cover through bolt mounting, the bottom between left side cover and right side cover is equipped with mop bottom plate, the left side plug -in installation of left side cover top is equipped with water storage kettle. Press down the micro -switch control micro -water pump and take out the water in water storage kettle and spray to the ground through the spray head, complete the automatic spraying while mopping the floor, do not need personnel manual press spraying, operation is more laborsaving efficient, and spraying is more uniform and accurate, improve cleaning efficiency, pull up water storage kettle and remove from water jug connecting piece, turn over water storage kettle and add water, after filling, the bottom of water storage kettle is inserted into water jug connecting piece, so as to facilitate the dismounting of water storage kettle, and the water replacement is more convenient.

This utility model discloses a scratch-resistant dining table, including a tabletop, a height adjustment mechanism, a mounting and locking mechanism, and a locking auxiliary mechanism. The height adjustment mechanism includes an anti-scratch plate, a bottom support plate, a top support plate, a hinge frame, and a hydraulic cylinder. The mounting and locking mechanism includes a locking tube, a locking rod, an annular groove, an embedded plate, a turntable, and a driving plate. The height adjustment mechanism improves the wear resistance and service life of the tabletop by setting an anti-scratch plate on the top of the tabletop. The use of paired hinge frames and hydraulic cylinders ensures smooth and stable lifting. The locking rod and locking tube can be quickly inserted. The embedded plate and the annular groove complete stable locking, improving assembly efficiency. The spring support pin provides continuous pushing force to the rotating ring, making the rotation of the plate more stable and reliable. The clamping ring clamps the driving plate through a threaded adjustment method to prevent rotational loosening and improve the overall locking force of the connection.

The utility model relates to the technical field of oil field development sampling detection, in particular to an oil field development rapid sampling detection device which comprises a moving trolley, the upper end of the surface of the moving trolley is rotationally connected with a winding wheel, and a rope is wound on the surface of the winding wheel; the sampling mechanism comprises a balancing weight fixedly connected to the bottom end of the rope, and the lower end of the surface of the balancing weight is fixedly connected with a storage cylinder; according to the device, the upper end of the inner wall of the storage barrel is plugged through a sealing gasket, it is guaranteed that the sealing gasket is tightly attached to the upper end of the surface of a sampling pipe, and through a first motor, a rotating disc and a through hole, oil liquid at different depths in an oil well flows into the corresponding sampling pipe; according to the mode, the oil liquid is guided into the sampling pipe, so that the normal quantity of the detected sample is ensured, and the detection effect on the oil liquid sample is further ensured.

The utility model relates to the technical field of liquid crystal display screens, in particular to a liquid crystal display screen surface anti-static device which comprises a frame, a display screen body installed in the frame, a first anti-static assembly arranged at one end of the frame, a second anti-static assembly arranged at the other end of the frame, and an anti-static film installed on the outer wall of the display screen body. The first anti-static assembly comprises a metal inserting block, an inserting groove is formed in the bottom face of one side of the first anti-static assembly, a fluororubber layer is fixedly arranged on the outer wall of the metal inserting block, the fluororubber layer and the metal inserting block are matched with the inserting groove in an inserting mode, and a plurality of metal conductive blocks are embedded in one end of the frame. According to the utility model, low-resistance conduction is ensured, rapid plugging of the metal plugging block is facilitated, an aged conductive assembly is convenient to replace, the surface of the anti-static film is made of an anti-static material, static accumulation is reduced, low-resistance conduction of the metal conductive block is matched, dual inhibition of static and dynamic static is realized, and the anti-static effect is good. And the static electricity residual risk in a dynamic friction scene is reduced.

This utility model relates to a transformer resistance testing device, belonging to the field of transformer technology. The transformer resistance testing device includes: a testing instrument body, a protective cover rotatably connected to the top of the testing instrument body, a connecting mechanism mounted on the testing instrument body, a testing wire plug inserted into the socket, a connecting rod fixedly connected to the top of the testing wire plug, a connecting seat fixedly connected to the top of the connecting rod, a testing wire on the surface of the connecting seat, and a limiting groove corresponding to the compression ball on the surface of the testing wire plug. The above-mentioned transformer resistance testing device achieves rapid insertion and removal of the testing wire through the elastic locking mechanism between the testing wire plug and the socket. During insertion, the compression ball and spring automatically lock the wire; during removal, only the connecting seat needs to be pressed down to allow the compression ball to slide along the semi-cylindrical surface of the limiting groove to disengage from the lock, and after rotation, it can be directly pulled out without repeatedly tightening and loosening the cap, reducing operating steps.

The utility model relates to an unmanned plane technical field, and disclose a waterproof connecting device for unmanned plane battery, including unmanned plane, the bottom of unmanned plane is installed with mounting bracket, the bottom middle part both sides of mounting bracket all are fixedly connected with mounting panel, and the top of mounting panel places battery, in the utility model, the sealing groove of battery plug is opened, and the sealing ring of unmanned plane plug is sleeved outside, and after preliminary alignment, battery plug is pushed close to unmanned plane plug, connecting rod synchronous movement, and the battery plug is rotated clockwise when the resistance block restricts connecting rod movement, and the plug rod is clamped into the slot guide groove through connecting rod, continue to push the plug to complete electrical plug, and the plug rod slides in the slot and drives the slot to swing, drives swing rod to overturn upward, synchronously drives sealing ring and outer rubber sleeve to displace upward, until sealing ring is embedded in sealing groove annular groove, and rubber sleeve covers plug connection interface to form double waterproof barrier, realizes electrical connection and waterproof seal synchronous completion.

The utility model relates to the technical field of anti -icing outdoor bolt, specifically relates to a kind of anti -icing outdoor bolt, comprising: fire hydrant mechanism, the fire hydrant mechanism is equipped with anti -icing mechanism, the lower of fire hydrant mechanism is equipped with sealing mechanism;The fire hydrant mechanism includes fire hydrant shell, the upper end of fire hydrant shell is fixed with sealing top cover, and fire hydrant shell is fixed with fire hydrant inner shell inside.This utility model can remove the plugging of water outlet hole by sealing sleeve moving with heat preservation cover, make residual water in fire hydrant inner shell discharge quickly through water outlet hole, reduce the possibility of icing from source, the cooperation of sealing ring and movable rod can also quickly plug water outlet hole when using, ensure normal water outlet function, and the outer surface of the connecting shell of sealing mechanism is embedded with heating ring, can continuously heat the connecting place with underground pipeline, avoid the connecting part icing rigid under low temperature, ensure that device can still be normally opened and operated in severe cold environment, guarantee emergency use demand.

The utility model relates to the technical field of intelligent door locks, in particular to an emergency power supply device for wireless charging of an intelligent lock, which comprises an outer lock body and an emergency power supply structure, a mounting groove is arranged at the bottom end of the outer lock body, and a connecting column is arranged in the mounting groove; the emergency power supply structure comprises a bottom shell, a top cover, a contact metal column and a shifting plate, wherein the bottom shell is provided with a mounting cavity for accommodating a standby lithium battery and a wireless charging module. The bottom shell inserting strips are matched with the inserting grooves of the mounting grooves, the positioning magnetic columns are attracted to the magnetic attraction metal blocks, and the connecting columns are in butt joint with the inserting holes, so that stable mounting and quick inserting and pulling of the emergency power supply structure are achieved. During use, the shifting plate is shifted to drive the baffle plate, so that connection and disconnection between the contact metal column and the connecting column can be controlled. When the shifting plate moves leftwards, the baffle blocks the contact metal column and the connecting column, a circuit is cut off, and electric quantity loss is avoided; and the shifting plate moves rightwards, the contact metal column pops out to make contact with the connecting column, the standby lithium battery supplies power to the outer lock body emergently, it is ensured that the intelligent lock is normally opened in emergency, and charging convenience and emergency power supply efficiency are effectively improved.

A reinforced earthwork standard room connecting structure and an earthwork standard room relate to the technical field of earthwork standard rooms, the reinforced earthwork standard room connecting structure comprises a central column and at least one matching insertion plate, the central column is provided with a clamping notch, an insertion head is formed on the matching insertion plate, and the insertion head can be inserted into the clamping notch. The two sides of the matched insertion plate are each provided with a guide plate, and the two sides of the center column are provided with insertion grooves matched with the guide plates. According to the utility model, by arranging the structures such as the clamping notch, the connecting plug and the deformation gap, the connecting structure can be kept stable when being subjected to external force caused by non-uniform distribution of the internal filler, and bonding points among the strips are prevented from being torn.

The utility model provides an orifice device for drilling and water plugging under the geological condition of strong water permeability, which belongs to the technical field of drilling assistance and comprises an orifice arranged on a tunnel face, a concrete annular part fixedly arranged on the inner side of the orifice, and an embedded steel pipe inserted in the orifice. By designing the orifice, the embedded steel pipe, the external steel pipe, the ball valve and other structures, the embedded steel pipe and the inner side of the orifice are sealed in an inflatable manner, and the support is installed to limit axial movement, so that quick plugging during gushing is achieved, the use effect is good, and safety and stability are achieved; if gushing does not occur, the pre-embedded steel pipe, the external steel pipe, the ball valve and other structures can be quickly disassembled after drilling is finished and put into secondary use.

The utility model discloses a kind of mining explosion-proof follow-up low-voltage latch, belong to wire connection technical field, including clamping component, first tubular component, second tubular component and third tubular component connected in sequence;Clamping component is sequentially composed of small inner diameter tubular section, variable diameter tubular section and large inner diameter tubular section, annular pressing plate, sealing washer and fixedly arranged annular baffle are equipped in small inner diameter tubular section, annular pressing plate can extrude sealing washer and make its inner hole shrink by screwing back;Multiple electric conductive sockets are equipped in first tubular component along radial direction interval, and any adjacent electric conductive socket is filled with insulating material;Multiple electric conductive plugs are equipped in second tubular component along radial direction interval, and electric conductive plug includes plug rod arranged along front-back direction and plug quick connector arranged in the rear end of plug rod, and any adjacent electric conductive plug is filled with insulating material. Realize quick plug-in and breaking between power supply and electric equipment, and greatly improve the efficiency of wiring and breaking.

The utility model relates to the technical field of curtain walls, in particular to a high-energy-saving unit type curtain wall structure which comprises photovoltaic glass, a ceramic aluminum acoustic panel, a rubber and plastic heat preservation layer, an aluminum silicate heat preservation layer, an inorganic active heat preservation layer, an aluminum alloy connecting strip and a butt joint plate with an inner groove. The rubber and plastic heat preservation layer is in adhesive connection with the inner surface of the photovoltaic glass through hot melt adhesive, the outer surface of the aluminum silicate heat preservation layer is in adhesive connection with one side of the rubber and plastic heat preservation layer, and the outer surface of the inorganic active heat preservation layer is in adhesive connection with one side of the aluminum silicate heat preservation layer. According to the high-energy-saving unit type curtain wall structure, the photovoltaic glass not only serves as a building envelope, but also can convert solar energy into electric energy, partial self-supply of building energy is achieved, and the nanometer titanium dioxide coating in the inorganic active heat preservation layer has the photocatalysis effect under the illumination condition and can effectively decompose formaldehyde, VOCs and other harmful gases.

The utility model relates to the technical field of network cables, and discloses a network cable convenient to plug and unplug, which comprises a lower shell, the top of the lower shell is detachably connected with an upper shell, a working mechanism is arranged in the lower shell, the top of the upper shell is provided with a locking mechanism, the top of the upper shell is provided with a cable fixing mechanism, the locking mechanism comprises a fixing ring, and the fixing ring is provided with a locking groove. The outer side of the fixing ring is fixedly connected to the top of the upper shell, the inner side of the fixing ring is rotationally connected with a rotating ring, the inner side of the rotating ring is fixedly connected with a rotating shaft, a reset assembly is arranged on the outer side of the rotating shaft, the bottom of the rotating shaft is rotationally connected with a transmission assembly, and the output end of the transmission assembly is fixedly connected with an abutting block. According to the utility model, the rapid plugging of the network cable is realized, so that the efficiency of connection and replacement of the network equipment is improved, the connection between the network cable and the socket can be kept stable under the action of external force, and the signal transmission effect is improved.

The utility model belongs to the technical field of power plugs, and particularly relates to a safety early warning type overload automatic power-off power plug, which comprises a power plug main body and a circuit break protection module arranged in the power plug main body, the tail end of the power plug main body is connected with a power line, and the other end of the power line is connected with an output plug; according to the utility model, the circuit break protection module is installed inside the power plug main body, when the current is abnormal, the power supply is automatically cut off, all-around protection is provided for household electricity, and in addition, the first side plate and the second side plate are rotated and unfolded on the surface of the rotating rod, so that the power plug is convenient to use. When the power plug main body is inserted into the socket, the butt joint block is driven to be separated at the opening of the butt joint seat, so that the first side plate and the second side plate can be conveniently unfolded in a staggered manner, an operator can conveniently and quickly insert and pull the power plug main body on the socket by controlling the first side plate and the second side plate, and the practicability of the power plug main body is improved.

The utility model discloses a quick inflatable mine emergency escape passage sealing device, which particularly relates to the technical field of mine air bags and comprises an arch-shaped frame buried on the inner wall of a mine and air bag pieces symmetrically arranged on the arch-shaped frame. The side protection frame is fixedly installed on the arch-shaped frame, the gate plate frame set is arranged on a bottom plate arranged at the bottom of the arch-shaped frame in a sliding mode, and the two air bag pieces expand to be attached to each other and block the arch-shaped frame. According to the rapid inflation type mine emergency escape channel sealing device, the air bag pieces are protected and supported through the arch-shaped frame, so that expansion of the air bag pieces is guided to achieve accurate alignment, rapid expansion plugging can be achieved by means of simultaneous expansion of the two air bag pieces through the air pump, and the sealing effect is good. Compared with manual temporary erection and adjustment, the air bag piece is fixedly placed at a preset position, and the air bag piece is rapidly expanded to be matched with supporting of the arch-shaped frame when needing to be used, so that effective and rapid corresponding and plugging can be achieved.

The utility model discloses a combined type low-voltage comprehensive distribution box, which relates to the technical field of distribution boxes and comprises a cabinet body, a through groove is formed in the side wall of the cabinet body, a sealing assembly is arranged on the inner wall of the through groove and comprises a connecting plate, extension frames are movably connected to the side walls of the upper end and the lower end of the connecting plate, and a mounting plate is fixedly connected to the side wall of the connecting plate. A first gear is movably connected to the side wall of the mounting plate through a pin shaft, a second gear is connected to the side wall of the first gear in a meshed mode, and a threaded column is fixedly connected to the interior of the second gear in a penetrating mode. The extension frame is driven to slide on the connecting plate, so that the total length of the closing assembly can be easily adjusted, the through groove can be quickly blocked or opened, flexible communication or closing among a plurality of cabinet bodies is realized, an extra storage space does not need to be found for the disassembled assembly, and the loss of the closing assembly is effectively avoided.

The utility model discloses a fast plug type modularized automobile wire harness comprising a connecting line, two sides of the connecting line are fixedly connected with connecting handles, one side of each connecting handle is fixedly connected with a connector, and the center line of each connecting handle and the center line of each connector are on the same horizontal plane. According to the quick plug-pull type modularized automobile wire harness, the connecting handle is arranged, the movable sleeves at the two ends of the connecting handle are pressed to drive the connecting plate to move during installation, and the connecting plate drives the positioning block to contract so that the connector can be inserted into a corresponding socket of an automobile system; after insertion, a movable sleeve is loosened, the movable sleeve pushes out a connecting plate under pushing of a spring, the connecting plate drives a positioning block to be inserted into a clamping groove formed in an insertion opening, and therefore the connector is positioned through the connecting plate; when the connector needs to be pulled out, the movable sleeves at the two ends of the connecting handle are pressed, the connecting plate drives the positioning block to be separated from the socket, and then the connector can be quickly pulled out, and the problem that plugging and pulling are not convenient is solved.

The utility model belongs to the technical field of petroleum engineering laboratory equipment, and discloses a portable closed quick sampling device for a rock core displacement experiment, which comprises a transparent barrel body, a liquid inlet pipe, a liquid outlet pipe, a liquid inlet pipe and a liquid outlet pipe, the micro pressure release valve is arranged at the top end of the transparent barrel body and is used for balancing internal and external pressure of the transparent barrel body; the anti-backflow quick connection structure is arranged on the outer side of the transparent barrel body and comprises a one-way valve and a quick plugging connector which are connected in sequence, the quick plugging connector is used for being directly connected with an outlet pipeline of external experimental equipment, and the drain valve is arranged at the bottom of the transparent barrel body and used for draining fluid; according to the utility model, through the arrangement of the scale and the rotatable supporting and protecting assembly, full-closed sampling is realized, volatilization, oxidation and pollution are avoided, the accuracy of experimental data is ensured, plugging and unplugging are rapid, pump closing and frequent valve operation are not needed, operation is simple and convenient, and meanwhile, a worker can perform quantitative sampling through cooperation of transparency, visibility and scales.