179results about How to "Fast connectivity" patented technology

The invention provides a cross-platform fusion access method, system and device of equipment and electronic equipment, the method is applied to the technical field of Internet of Things, and the method comprises the following steps: a mobile terminal performs security authentication on target central control equipment; the mobile terminal sends a structured configuration file including the equipment information of the plurality of smart home equipment, the region division rule, the scene mode and the linkage rule to the target central control equipment; the target central control equipment receives and analyzes the structured configuration file, and updates the corresponding smart home equipment according to an analysis result; the target central control equipment receives a control instruction of the cloud platform, converts the control instruction into an internal protocol instruction and then issues the internal protocol instruction so as to control the corresponding smart home equipment to execute operation; the target central control device synchronizes the state information of the smart home device to the cloud platform; and when an upgrading instruction of the cloud platform is received, issuing an upgrading task to execute an upgrading process. According to the method, the real-time performance of remote control of the smart home equipment and the accuracy of state feedback are guaranteed.

The utility model discloses a modularized steel enclosing purlin assembly convenient to quickly install, which comprises a steel sheet pile, a plurality of steel enclosing purlins and a plurality of steel enclosing purlins, the I-shaped steel enclosing purlins are transversely arranged on the inner sides of the steel sheet piles; the steel support is horizontally arranged between the I-shaped steel enclosing purlins, the steel support comprises a fixed head, a movable head and a supporting column, and the supporting column is arranged between the fixed head and the movable head; the bearing plate is clamped and fixed on the I-shaped steel enclosing purlin in a U shape and is used for bearing the steel support; rectangular mounting plates are arranged at the end of the fixed head and the end of the movable head, a U-shaped sliding rail is arranged on the bearing plate, an opening of the sliding rail faces upwards, and the mounting plates can be embedded in the sliding rail in a sliding mode. According to the steel enclosing purlin assembly, the bearing plates fixed in a clamped mode are arranged, the bearing plates are used for bearing the steel supports, rapid positioning and connection between the I-shaped steel enclosing purlins and the steel supports are achieved, and the construction convenience and the use efficiency of the whole steel enclosing purlin assembly are improved.

This utility model relates to the field of building construction technology and discloses a high-efficiency material lifting device for building construction. It includes a support frame, a motor mounted at the bottom, a lifting base and a material cart in the middle, and limit plates on both sides of the top. Two sets of first and second gears, connected by rotating rods, are rotatably mounted on the bottom and back sides of the support frame, respectively. These gears mesh with a chain, and the motor drives the first gear to rotate, which in turn drives the chain to lift the base. Slide rods are mounted on both sides of the support frame. Multiple sets of pulleys are rotatably mounted on both sides of the mounting plate of the lifting base and slidably connected to the slide rods, serving as guides and limiters. The lifting base includes a mounting plate, connecting blocks, pulleys, etc. A slot seat is rotatably mounted between the mounting plates. The material cart slides into the slot seat via a slider. A locking device is located at the top of the slot seat. By moving a lever, a connecting rod is moved, causing a pin to slide within a limit sleeve, engaging with the opening of the material cart's insertion rod to fix the material cart, ensuring safe and stable material lifting.

This utility model provides an auxiliary device for the installation of ground source heat pump well pipelines, belonging to the field of ground source heat pump engineering technology, aiming to solve the problems of cumbersome fixed installation and inconvenient storage of existing auxiliary devices. The device includes a shell and a second fixing plate fixedly connected to the shell, as well as a rotating mechanism disposed at the end of the second fixing plate. The rotating mechanism includes a second rotating rod, a rotating wheel, a bottom cone rod, a first fixing rod, and a limiting component. The first fixing rod passes through the rotating wheel and drives the bottom cone rod to rotate between a storage position and a working position. The limiting component includes a second fixing block and a force-bearing block. In addition, the device is equipped with a disassembly mechanism for quick and detachable connection between the upper support and the shell. This utility model, through the bottom cone rod and the self-locking limiting mechanism, achieves rapid deployment, stable fixation, and convenient retraction of the device, improving the efficiency and safety of ground source heat pump pipeline installation operations.

The utility model relates to a motor external power adapter convenient for wiring, which solves the technical problems of extremely complicated wiring process, serious influence on work efficiency, screw loosening leading to poor wire contact and the like. The utility model discloses a power shell with an inner cavity, a circuit board with a direct-current alternating-current conversion circuit is arranged at the inner bottom of the power shell, the opposite sides of the two ends of the power shell are respectively provided with mounting notches, power line connecting seats are respectively arranged in the mounting notches, the end part of the circuit board extends into the mounting notches and is fixedly connected with the power line connecting seats, a plurality of wiring holes are respectively arranged on the power line connecting seats, wiring terminals are arranged in the power line connecting seats, and quick connecting assemblies are movably arranged on the power line connecting seats. The utility model has the advantages that the power line is inserted into the wiring hole, the quick disconnection of the power line and the wiring terminal can be realized by pressing the key, the screwdriver and other tools are not needed, the wiring operation process is greatly simplified, and time and labor are saved.

The invention relates to the technical field of fluid conveying, and discloses a double-channel fluid connecting device which is characterized in that a fixing part is provided with a first pipeline and a second pipeline; the first pipeline is provided with a first butt joint opening, the second pipeline is provided with a second butt joint opening, and the second butt joint opening is coaxially arranged in the first butt joint opening in a sleeved mode. A first annular channel is formed between the second butt joint port and the first butt joint port; the movable part is provided with a third pipeline and a fourth pipeline; the third pipeline is provided with a third butt joint port, the fourth pipeline is provided with a fourth butt joint port, and the fourth butt joint port is coaxially sleeved with the third butt joint port; a second annular channel is formed between the fourth butt joint port and the third butt joint port; one path of fluid is transmitted through the second pipeline, the second butt-joint opening and the fourth butt-joint opening; and the other path of fluid is conveyed through the first pipeline, the first annular channel, the second annular channel and the third pipeline. Rapid butt joint of two paths of fluid is achieved, the two paths of butt joint faces are coaxially designed, and the butt joint precision requirement is lowered.

The invention relates to novel liquid body temperature circulation temperature control equipment, and belongs to the technical field of medical temperature control equipment. The device comprises an equipment base, a temperature control host, a stand column, a T-shaped installation frame, a pipeline assembly, a temperature control assembly and a temperature sensing assembly, the stand column is fixedly installed above the equipment base, the temperature control host is installed on one side of the stand column, the T-shaped installation frame is fixedly installed above the stand column, a lifting hook is installed below the T-shaped installation frame, and the pipeline assembly is installed above the lifting hook. The temperature control assembly is fixedly installed on one side of the temperature control host, and the temperature sensing assembly is installed on one side of the lower portion of the temperature control host. The temperature control equipment monitors the pipeline output temperature and the core body temperature of a patient in real time through the temperature sensing assembly, the temperature control host adjusts the temperature control power in a closed-loop feedback mode based on monitoring data, accurate, rapid and stable temperature control is achieved, the equipment is suitable for various clinical scenes needing mild hypothermia intervention such as thermoplegia and the syndrome after cardiac arrest, treatment safety and effectiveness are improved, and the treatment cost is reduced. And the workload of medical staff is reduced.

The utility model provides a kind of integrated equipment for brain surgery navigation system, it is related to medical instrument technical field, integrated equipment includes equipment main body, consumable docking mechanism and central processing mechanism, equipment main body is box structure, consumable docking mechanism is located in the upper end of equipment main body, for connecting with external consumable, central processing mechanism is located in the inside of equipment main body, for carrying the software of brain surgery navigation system, the upper end of equipment main body is also provided with first adjustable support mechanism and the second adjustable support mechanism diagonally arranged with first adjustable support mechanism, first adjustable support mechanism terminal is connected with touch screen, second adjustable support mechanism terminal is connected with magnetic sensing receiver, central processing mechanism is electrically connected with consumable docking mechanism, touch screen and magnetic sensing receiver respectively.The utility model can optimize the space utilization of equipment main body, improve the experience of medical staff, reduce the operation preparation time, increase the safety of operation.

The utility model discloses a double-sealing-ring self-tightening type pipeline quick connecting device which comprises a connecting body, a first sealing ring, a second sealing ring, a locking ring and an elastic clamping jaw. Inserting cavities are formed in the two ends of the connecting body, and first sealing grooves and second sealing grooves are formed in the inner walls of the inserting cavities and provided with first sealing rings and second sealing rings respectively. The outer wall of the connecting body is provided with external threads, and the locking ring is matched and connected with the external threads through the internal threads. And the elastic clamping jaw is arranged at the end part of the insertion cavity to form a clamping part. By arranging the double sealing rings, namely the first sealing ring and the second sealing ring, the sealing performance of pipeline connection can be effectively improved, and the leakage phenomenon is reduced.

The utility model discloses a hot -blast machine circuit board convenient to dismantle, including hot -blast machine circuit board, connecting mechanism and fixed plate, all be equipped with through -hole in the four corners of hot -blast machine circuit board, and all insert installation have connecting mechanism in four through -holes, and fixed plate is installed in the outside hot -blast machine, and connecting mechanism is connected with fixed plate, and connecting mechanism includes inserting rod, limit ring, nut, annular groove and rubber ring, and the lower wall inserting rod inserts and installs in the through -hole, and the outside installing of inserting rod is equipped with limit ring, and the outside installing of nut is in inserting rod, and the lateral wall of inserting rod is equipped with annular groove, and rubber ring is located in annular groove, and the hot -blast machine circuit board in this device is installed through the cooperation of inserting rod and connecting cylinder, makes it when disassembling, only needs to push away after the support plate outward, can pull down hot -blast machine circuit board from fixed plate, very convenient, and setting up support plate can make hot -blast machine circuit board more stable, avoids the situation of falling.

A return towing head for directional synchronous crossing of a main pipeline and an outer casing, relating to the field of pipeline crossing technology, includes an outer casing, a main pipeline, and a return towing head. Reinforcing plates are welded to the outer wall of the outer casing at equal intervals along the circumference. The return towing head includes a main body, with tie rods evenly spaced along the circumference at the ends of the main body. The tie rods can extend between two reinforcing plates, and a limiting plate is provided at the end of the tie rod. When the outer casing and the return towing head need to connect, the limiting plate is placed horizontally on the reinforcing plates on both sides, thus forming an effective connection. A central cylinder is provided inside the main body, and a top block is slidably mounted radially upward on the central cylinder. One end of the top block can abut against the inner wall of the main pipeline. A drag rod is slidably mounted axially upward on the central cylinder, and the drag rod has a conical portion. The other end of the top block can abut against the conical portion of the drag rod. When the drag rod is dragged outward, the conical portion pushes the top block out and presses it tightly against the inner wall of the main pipeline. Thus, this application achieves synchronous dragging of the outer casing and the main pipeline by the return towing head.

This utility model discloses a self-locking detachable cookware handle, including a connector and a grip. The connector is installed on the cookware, and the grip is connected to the cookware through the connector. The grip is provided with a snap-fit ​​component, a locking component, and a spring. The connector has a limiting slot. When the grip and the connector are mated, the snap-fit ​​component is inserted into the limiting slot to achieve a positioning connection between the grip and the connector. One end of the spring is connected to the grip, and the other end is connected to the locking component. The preload of the spring drives the locking component to contact the connector, thereby restricting the snap-fit ​​component from moving in the opposite direction to the insertion direction, thus locking the connection between the grip and the connector. This utility model enables a quick and stable connection between the grip and the cookware, with simple and quick assembly and disassembly, improving convenience. It is applicable to various cookware types and has strong versatility and broad application prospects.

The utility model discloses a drilling soil sampling device for soil detection, which comprises a lifting plate, a lifting adjusting mechanism, an external rotation soil breaking mechanism and a mounting clamping mechanism, the lifting adjusting mechanism comprises a conical tooth assembly, a lead screw, a threaded plate, a bottom frame and a hinge lifting frame; the external rotation soil breaking mechanism comprises a conveying pipe, a lateral frame, a first motor, a second motor, an external rotation pipe, a transmission tooth assembly, an external rotation blade, a rotating shaft and a conveying blade, and stable lifting of a lifting plate is ensured through threaded fit of a bevel tooth assembly and a lead screw, so that the drilling depth is accurately controlled, high-precision control is provided for soil sampling, and the working efficiency is improved. The external rotation ground breaking mechanism effectively breaks ground by means of the rotation function of an external rotation pipe and external rotation blades, all assemblies can be rapidly connected and fixed through the design of a clamping pipe, a clamping rod, an external extension spring rod and the like of the installation clamping mechanism, and the detachability and maintenance convenience of the equipment are improved.

The utility model discloses an electronic wire harness convenient for plugging, comprising a first joint, a second joint and a lead, two ends of the first joint are respectively provided with a pin and a pin, the pin is electrically connected with the pin, one end of the second joint is provided with a jack, the other end of the second joint is connected with the lead, and the lead is electrically connected with the pin. The pin is inserted into the jack and is electrically connected with the wire; the two ends, adjacent to the contact pin, of the first connector are provided with first battens, the first battens extend towards one side of the contact pin, the two sides, adjacent to the jack, of the second connector are provided with second battens, and the second battens extend towards one side of the wire and can elastically press towards the second connector. The pair of second battens can be inserted between the pair of first battens, and slotted holes are formed in the first battens. According to the electronic wire harness convenient to plug, provided by the utility model, rapid connection and separation between the wire harness and a circuit of a circuit board of electronic equipment can be realized, and convenience is provided for maintenance operation of the wire harness and the electronic equipment.

The present application relates to steel formwork turning plate technical field, especially to a kind of steel formwork turning plate structure for power plant chimney and use method.It includes fixed seat, the fixed seat is provided with symmetric and evenly distributed through-hole, the fixed seat is fixed with first hydraulic rod, the fixed seat is slidably connected with mounting seat, the mounting seat is slidably connected with first steel plate, the first steel plate is provided with symmetric and evenly distributed through-hole, the mounting seat is fixed with second hydraulic rod, the first steel plate is rotatably connected with symmetric distribution second steel plate, the first steel plate is hinged with symmetric distribution first fixed shell, symmetric distribution the first fixed shell is slidably connected with first sliding rod on opposite side.The first sliding rod of the present application pushes adjacent second steel plate to produce rotation, so as to change the overall arc of the device, so that the device can adapt to the construction of various diameter chimneys, reduce the formwork cost when chimney is built.

The utility model discloses a kind of force adding devices of torque detection wrench, comprising: detection wrench main body, and the detachable wrench head of detection wrench main body front end, the rear end of detection wrench main body is provided with force adding component, force adding component is detachably connected with detection wrench main body, the rear end of detection wrench main body is fixedly connected with T-shaped connecting buckle, force adding component is connected with the fixed connection of detection wrench main body by clamping T-shaped connecting buckle;Force adding component includes lengthened handle, and the end of lengthened handle is respectively provided with fixed buckle seat and movable buckle seat.The utility model provides a kind of force adding devices of torque detection wrench, the structure design of force adding component makes that force adding component can be connected or split with detection wrench main body quickly, so as to meet the length requirement of force adding component according to use demand replacement, and the installation and disassembly of force adding component all do not need other tools, to make the convenience of force adding component installation or disassembly be improved.

This utility model discloses a fabric rolling machine that facilitates automatic reel replacement, including a support. A mounting box is fixedly installed in the middle of the upper outer surface of the support. A first slide is provided on the left side of the upper outer surface of the support, and a second slide is provided on the right side. A first support plate is fixedly installed on the upper outer surface of the first slide, and a second support plate is fixedly installed on the upper outer surface of the second slide. A first air shaft is rotatably mounted on the upper part of the first support plate, and a second air shaft is rotatably mounted on the upper part of the second support plate. The fabric rolling machine of this utility model, which facilitates automatic reel replacement, allows the first and second air shafts to move back and forth through the operation of a first hydraulic rod, facilitating connection with the reel. A lifting structure facilitates lifting the reel between the first and second air shafts, improving the convenience of loading and unloading.

The utility model relates to the technical field of fire hydrant equipment parts, and discloses a fast-assembly type fire hydrant box body connecting buckle which comprises a first shell, a special-shaped groove is formed in the middle of the first shell, a rotating column is rotationally connected to the middle of the first shell, and a ratchet wheel is fixedly connected to the outer wall of the rotating column. A pawl is connected to the rear side of the ratchet wheel in a clamped mode, a rotating shaft is rotatably connected to the right side of the pawl, a bearing block is fixedly connected to the bottom of the rotating shaft, a supporting column is fixedly connected to the front side of the top of the bearing block, a spring is fixedly connected to the left side of the supporting column, and a fixing block is fixedly connected to the rear side of the spring. The first shell and the second shell are aligned, the rotating button is inserted into the limiting groove of the second shell, the second knob drives the rotating column and the ratchet wheel, the pawl tilts up and rotates the rotating shaft, the fixing block moves backwards to stretch the spring, rotation is limited through the special shape of the ratchet wheel, connection is rapidly completed, and the response speed of fire fighting operation is increased.

The invention discloses a pipeline type multi-stage biological deodorization device which comprises a bio-trickling filter structure section, a connecting device, a pre-wetting structure section and a fine treatment structure section, and the connecting height of the bio-trickling filter structure section and an odor output pipe can be adjusted through the bio-trickling filter structure section; the connecting device is arranged at the rear end of the top of the bio-trickling filter structure section; the pre-wetting structure section is arranged at the left moving end of the connecting device; the biological filtration fine treatment structure section is arranged at the right side moving end of the connecting device and can drive a center component in the top of the biological trickling filtration structure section to rotate and stir in a limiting manner, and the connecting device can drive the pre-wetting structure section and the biological filtration fine treatment structure section to synchronously expand and contract; the fillers in the left end and the right end of the top of the bio-trickling filter structure section are clamped and fixed; in conclusion, flexible adjustment, linkage and quick connection and disconnection of the structural sections are achieved through multiple assemblies, and the odor purification quality and the deodorization efficiency are high.

The utility model provides a kind of wiring device, it is related to wiring terminal technical field, comprising: first wiring board, second wiring board and clamping assembly, first wiring board is provided with the first clamping through slot passing through its top and bottom;Second wiring board bottom is provided with the second clamping through slot corresponding with first clamping through slot;Clamping assembly includes mounting seat and the mounting cover plate being set above mounting seat, the top of mounting cover plate is provided with the through slot passing through its top and bottom and corresponding with second clamping through slot, the top of mounting seat is provided with accommodating groove, accommodating groove is provided with elastic member and the clamping piece being set in the top of elastic member, mounting gap is set between mounting seat and mounting cover plate, second wiring board is set in mounting gap.

The utility model discloses a kind of gas sampling instrument, including sampling shell, the left and right sides of the lower end middle part of sampling shell are equipped with protective frame, the inside lower end middle part of sampling shell is equipped with connecting pipe, the lower end of connecting pipe is equipped with sampling bottle, further including sampling mechanism, sampling mechanism: it includes connector, limit slot, limit claw, limit head, limit protrusion and collection assembly, the lower end of the outer surface of connecting pipe is equipped with bearing, connector is set on the outer surface of bearing, limit slot is respectively opened in the left and right sides of the lower end of the outer surface of connector, limit claw is respectively slidably connected in the middle of the middle part of protective frame close to connector side, the gas sampling instrument, with sampling mechanism, air pipe is integrated with sampling shell, air pipe is received by mounting groove, portable air pipe is not easy to lose, sampling bottle can also be quickly connected and disassembled by the up-down movement of limit claw, improve the sampling efficiency of gas.

The utility model relates to the field of overvoltage protector especially relates to a six -column full -phase safety protection device, including box, voltage selector, the body, installation slot, conductor one and conductor two, the box upper end is equipped with the installation slot that is linear array distribution, the body is rotatably installed in the installation slot inside, the inside of installation slot one side is equipped with the conductor one with elastic structure, the conductor one side is equipped with the arc conductor two, the conductor one is equipped with the buckle away from the conductor two side, this device can utilize voltage selector to participate in voltage selection, directly with different current into corresponding the body inside participates in protection, and provided the function that the body is quickly disassembled, solved the problem that the existing body protection effect is easy to appear multiple point conduction, excessive protection, leads to transition use, causes waste.

The application discloses a metal roof flexible support system integrated with health monitoring and functional facilities, relates to the technical field of roof waterproof installation, and is characterized in that a plurality of pressure relief spring sheets are equidistantly arranged on the inner side of a clamping limiting block, a plurality of alignment sliding frames are slidingly arranged on the inner side of the clamping limiting block, a plurality of pressure alignment springs are equidistantly welded at the bottom end of the alignment sliding frame, a plurality of guide fixed balls are rotationally connected to the bottom of the clamping limiting block, and a plurality of protective operation pads are equidistantly bonded to the side end of the alignment sliding frame. The application utilizes multi-stage step-by-step energy-absorbing buffering, cooperates with small-amplitude swing energy absorption and vertical lifting energy absorption processing, so that when the roof is subjected to multi-directional forces applied by various external natural environments, buffering can be effectively performed, the whole is prevented from being excessively pulled to cause large deformation of the roof, the stability of the whole roof waterproof and sealing is ensured, and the service life of the roof is prolonged.

The utility model relates to control valve group field especially, it relates to a control valve group with quick plug -pull structure, including shell assembly, the auxiliary assembly of being connected on shell assembly and the plug -pull assembly of being connected on shell assembly. The utility model provides a control valve group with quick plug -pull structure, has realized the remarkable optimization of control valve group connection and maintenance, has promoted the overall work efficiency and reliability, through plug -pull assembly and auxiliary element, control valve group's assembly and disassembly become extremely convenient, and realized the quick connection and reliable locking between parts, so that the user need not use additional tool, can quickly complete valve group's connection and break, through auxiliary assembly seals each connecting area between valve core, second pipeline and first base respectively, effectively prevented the leakage of fluid, ensured the reliable operation of control valve group, first spring and second spring provided stable connecting force for whole structure, improved the service life of valve group.

The utility model belongs to the technical field of automobile model frame forming equipment, and particularly relates to an automobile model frame die-casting forming device which comprises a lower die-casting die shell and an upper die-casting die shell buckled with the lower die-casting die shell, and a casting hole is formed in the center of the upper end of the upper die-casting die shell. A dismounting structure is connected between the lower die-casting die shell and the upper die-casting die shell; the disassembly and assembly structure comprises lower fixing plates and upper fixing plates, the lower fixing plates are fixedly installed on the surfaces of the two ends of the lower die-casting die shell, the upper fixing plates are fixedly installed on the surfaces of the two ends of the upper die-casting die shell, and inserting vertical rods are fixedly welded to the surfaces of the upper ends of the lower fixing plates. And the limiting insertion rods and the limiting insertion holes are in matched insertion connection, so that rapid positioning and stable connection of the mold are achieved. In the disassembly and assembly process, an operator can easily separate or lock the mold only by pulling the sliding butt strap, and complex tools and tedious steps are not needed.

The cabinet door latch system comprises a main lock body, a transmission connecting rod assembly and a plurality of lock point mechanisms, each lock point mechanism comprises a lock point base and a plate-shaped rack type lock pull rod, a first installation position and a second installation position are arranged in a guide groove in each lock point base, each lock pull rod is vertically installed on the corresponding first installation position and only slides in the axial direction, and a flat plate section is installed on the corresponding second installation position. When the flat plate section is inserted into or withdrawn from the opening of the guide groove, the linkage part is hooked or separated to realize transmission connection and disconnection, and the top end of the linkage part is lower than the top end of the lock pull rod, so that the side edge of the top end of the lock pull rod is exposed at the second mounting position, and the base is internally provided with a pivotable restraining component at the lateral concave part of the position. The restraining part is moved into the second mounting position to shield the opening, meanwhile, the flat plate section is limited and matched with the side edge of the top end of the lock pull rod, during disassembly, the component can be switched to the open state, the restraining part is moved out, and the flat plate section can be pulled out. And the lock point is convenient to disassemble and operate.

The utility model discloses a wet and dry dual-purpose mop, relates to the technical field of mops, and solves the problems that the wet and dry dual-purpose mop in the prior art is poor in structural stability and inconvenient to disassemble. The wet mop comprises a grip, a wet mop head is hinged to the lower end of the grip, an inserting structure is arranged on the wet mop head, and the wet mop head is detachably connected with a dry mop head through the inserting structure. A pressing clamp is arranged on the handle head, and the pressing clamp is matched with the inserting structure and can lock the inserting state of the inserting structure. A water scraping assembly is arranged on the grip in a sliding mode, and a water scraping structure used for being matched with the wet grip head is arranged on the water scraping assembly. The wet handle head is directly hinged to the lower end of the grip, so that force can be uniformly applied to the wet handle head during use; by arranging the inserting structure, the wet handle head and the dry handle head can be rapidly connected and detached, a stable supporting and connecting structure can be provided, transmission of force applied by the grip is facilitated, and the cleaning effect is improved.

The utility model relates to a lightning arrester counter convenient to install belongs to lightning arrester counter technical field, including backplate, two connecting plates and quick locking assembly, the quick locking assembly includes the first locking block of installing on backplate rear side wall upper end and lower end position, the quick locking assembly still includes the second locking block of installing respectively in two connecting plates front side wall, two second locking blocks and two first locking blocks staggered distribution, the second locking block of upper end and the first locking block of upper end are connected, adopt the unique quick locking assembly, through the meshing drive of the incomplete tooth disc and the incomplete gear ring with the elastic force action of cooperation torsional -tensile composite spring, realize the quick connection and separation of backplate and connecting plate, whole installation process does not need complicated tool, greatly reduced manpower cost and time cost.