27results about How to "Easy structure installation" patented technology

The utility model relates to the technical field of road guardrails, and provides a wing-wall-free guardrail which comprises a concrete guardrail, one side of the front face of the concrete guardrail is fixedly connected with a lap joint plate, one side of the concrete guardrail is movably connected with supporting stand columns at equal intervals, the upper ends of the front faces of the supporting stand columns are fixedly connected with a bracket, and the upper ends of the front faces of the supporting stand columns are fixedly connected with the lap joint plate. The front surfaces of the bracket and the lap joint plate are fixedly connected with a three-wave plate, the front surface of the part, below the bracket, of the supporting stand column is fixedly connected with a connecting frame, and the front surface of the connecting frame is fixedly connected with a friction beam. When the anti-collision device is used, a vehicle can slide along the surface of the three-wave plate through the rotating rubber rotating wheel, impact energy of the vehicle is consumed through friction of the friction beam, the structural strength of the friction beam and the three-wave plate is improved through the bracket and the connecting frame, the anti-collision effect of the anti-collision device is improved, and more serious traffic damage is avoided.

The utility model discloses a reinforcing steel bar connecting device for uplift pile detection, and particularly relates to the technical field of uplift detection, which comprises a connecting assembly for reinforcing steel bar uplift detection. The connecting assembly comprises a first connecting piece and a second connecting piece which are distributed up and down, the first connecting piece is arranged at the top of the second connecting piece, and a joining assembly used for connecting and fixing is arranged between the first connecting piece and the second connecting piece; the first connecting piece comprises a connecting ring and a connecting cylinder, the connecting ring is arranged in the connecting cylinder in a sleeved mode, and the interior of the connecting cylinder is in threaded connection with a connecting rib used for being connected with lifting equipment. Through the deformation holes in the locking fastener, the locking fastener can be deformed to be clamped and fixed with the steel bar, and then the connecting bar for lifting is in threaded connection with the connecting cylinder, so that a worker can conveniently pull the steel bar, and the whole structure is convenient to install, simple to operate, small in influence on the site construction period and high in practicability. And the operation efficiency can be effectively improved.

The application relates to an anti-impact supporting mechanism, in particular to an electric cylinder supporting mechanism and electric cylinder, which comprises an inner ring, an outer ring, a rolling pin and retainer assembly, a first thrust cylindrical roller assembly, a second thrust cylindrical roller assembly, a first thrust bearing retainer, a second thrust bearing retainer, a bearing sleeve and an end sleeve. The outer ring is arranged outside the inner ring, the rolling pin and retainer assembly are arranged between the inner ring and the outer ring, the first thrust cylindrical roller assembly and the second thrust cylindrical roller assembly are sleeved on the inner ring, the bearing sleeve is sleeved on the outer ring, one part of the end sleeve is connected to the inner wall of the bearing sleeve, and the other part of the end sleeve extends out of the bearing sleeve. The application can bear radial force and bidirectional axial force, and can meet the special requirements of the transmission shaft and the lead screw when being separated and combined.

The utility model provides a high-power purification room device used in public places, which comprises a room body and a purification device connected to the room body, and the purification device comprises a purification box body and a lower air guide channel; an air inlet cover is arranged at the lower part of the lower air guide channel; the purification box body provides a bracket for placing the purification module, and the purification module is detachably assembled on the bracket; the purification box body is provided with an exhaust air guide box, the exhaust air guide box is provided with a bent air guide plate and an exhaust plate, and the exhaust plate is arranged in the exhaust air guide box and is provided with a through hole. The bracket in the box allows the capacity of filtered air with larger volume and filter power to be increased, the service life of the filter screen is greatly prolonged, the structure is convenient to install, the filter air guide arrangement is reasonable, the filter effect is good, and therefore the air filter has excellent performance in technicality, economical efficiency and practicability.

According to the technical scheme, the flip type ventilator with the double air doors is characterized by comprising a ventilation frame, a panel, an elastic hinge piece, the air doors and a limiting piece; one end of the panel is hinged to the end, away from the air opening, of the ventilation frame. One end of the elastic hinge piece is hinged with the other end of the panel, and the other end is hinged with the ventilation frame; a buckling piece is arranged at the end, close to the elastic hinge piece, of the panel. The ventilation frame is provided with clamping feet which can be connected with the buckling and locking pieces in a clamped mode. A transverse shaft is arranged at the tuyere; the air door is rotatably arranged on the transverse shaft and is arranged in the air opening; the air door is wider than the air port; the limiting piece is arranged on the inner side of the end, away from the elastic hinge piece, of the panel. The overall structure is convenient to install and stable, and the water tightness, the air tightness and the wind pressure resistance of the ventilator are greatly enhanced through the design of the double air doors; the double-air-door design increases the ventilation area and increases the ventilation volume of the ventilator.

The utility model discloses a high sealed faucet assembly, including faucet piece and water inlet pipe, the faucet piece bottom position is connected with water inlet pipe, water inlet pipe is connected with water source through the pump body, one side of faucet piece is provided with the valve body of rotation, the valve body is through the rotation axis and is matched with faucet piece, is used for controlling the on -off of faucet piece inside water flow, realizes efficient water -out processing. This high sealed faucet assembly, the fitting mechanism extrudes the gasbag with the help of the rotating block, drives the inflation gasbag closely fits the faucet piece and the water inlet pipe junction, and the seal reliability is ensured in combination with the spring difference design, effectively solve the leakage problem under the high pressure water flow, avoid water resource waste, the elastic bellows in the water outlet mechanism can adjust the water outlet position flexibly, and the impeller drives the cleaning strip to wipe the water outlet hole in real time, prevents the impurity block, and guarantees the even and efficient water outlet. The water draining frame on the rotating block can receive the splashing water drop, reduces the erosion of parts.

The utility model discloses an IC carrier plate implanted microsphere packaging steel mesh which comprises a supporting frame, vertical sliding grooves are formed in the left side and the right side of the top of the supporting frame, transverse sliding grooves are formed in the front face and the back face of the top of the supporting frame, a packaging mesh is arranged in an inner cavity of the supporting frame, a plurality of vertical sliding blocks are arranged in inner cavities of the vertical sliding grooves, supporting rods are arranged at the tops of the vertical sliding blocks, and the supporting rods are connected with the supporting frame. A fixing groove is formed in the left side of the supporting rod, a fixing piece is arranged in an inner cavity of the fixing groove, and a transverse sliding block is arranged in an inner cavity of the transverse sliding groove. Before packaging, through holes corresponding to the clamping holes can be formed in the IC carrier plate in advance, in the packaging process, the clamping rods can penetrate through the through holes and are clamped into the clamping holes, the IC carrier plate and the packaging net can be fixed through the fixing pieces, meanwhile, the supporting rods can be driven by the vertical sliding blocks to move front and back according to actual needs, the multiple fixing pieces are moved to proper fixing point positions, and therefore the IC carrier plate and the packaging net can be fixed. Compared with a common screw and nut fixing mode, the structure is more convenient to install and more convenient to disassemble during later maintenance.

The invention relates to the field of electrical equipment, and discloses a roller structure, a mopping system and cleaning equipment, the roller structure can effectively clean corner areas, the telescopic process of a roller assembly is stable, and secondary pollution and obstacle avoidance can be avoided. The roller structure comprises a roller assembly, a guide rail mechanism and a telescopic mechanism. The guide rail mechanism is arranged between the first support and the roller assembly, and the roller assembly telescopically moves relative to the first support through the guide rail mechanism. The telescopic mechanism comprises a first control assembly and a second control assembly, the first control assembly is arranged on the guide rail mechanism, and when the acting force of the second control assembly on the roller assembly is smaller than that of the first control assembly on the roller assembly, the first control assembly drives the roller assembly to stretch out relative to the first support. When the acting force of the second control assembly on the roller assembly is larger than that of the first control assembly on the roller assembly, the second control assembly drives the roller assembly to retract relative to the first support.

The utility model provides a portable device for rapidly detecting air components, and relates to the technical field of detection equipment. The dredging assemblies are installed at the two ends of the bearing assembly, the inner box assembly is installed in the middle of the bearing assembly, the dredging assemblies are directly installed at the two ends of the bearing assembly, the inner box assembly is installed in the middle of the bearing assembly, and the collecting assembly is installed in the inner box assembly. The dredging assembly operates to enable airflow to pass through the inner box assembly better, the collecting assembly is installed in the inner box assembly and can conveniently collect the passing airflow and facilitate subsequent detection, and the clamping assembly and the supporting assembly are installed at the bottom of the bearing assembly, so that the bearing assembly can be integrally supported; the corresponding bearing assembly increases the use convenience of the device, and solves the problems that the detection device cannot be used for detection at different positions, and the detection device is inconvenient to move, so that the detection device can rapidly detect the specified position.

The utility model relates to the technical field of atomizers, and discloses a convenient-to-process atomizer structure which comprises an atomizer upper cover, a protective disc is fixedly arranged on the outer wall of the bottom end of the atomizer upper cover in an integrated structure, a connector is fixedly arranged in the middle of the top end of the atomizer upper cover, a power shaft is fixedly arranged in the middle of the interior of the connector, and an atomizing disc is arranged in the atomizer upper cover. A plurality of nozzles are formed in the outer wall of the atomizing disc in the circumferential direction at equal intervals. The atomizer upper cover, the protection disc and the atomizing disc are of a detachable structure, the structure is ingenious, when gas is sprayed out of the nozzle, the protection disc can protect the upper portion, the gas is prevented from rising upwards, the atomizing effect is improved, the sprayed gas can be shunted through the multiple atomizing shunting plates arranged outside the spraying set, the interior of the atomizing disc is smooth, pressure distribution is uniform, and the atomizing effect is improved. Local backflow dead angles are avoided, so that liquid is better atomized and discharged downwards; compared with an existing atomizer structure, the atomizer structure is simpler and more convenient to install, liquid in the atomizing disc is more evenly distributed, and the atomizing effect is improved.

The present invention discloses a cylindrical double-degree-of-freedom flow-induced vibration experimental device based on a rolling disc design, comprising a main body support, a central axis, a mass pound, a disc assembly and two tension spring assemblies; the disc assembly is sleeved on the upper end of the central axis, the main body support is sleeved on the disc assembly, the two tension spring assemblies are respectively mounted on the upper surface and the lower surface of the main body support, and the tension spring assembly is connected to the central axis, and the lower end of the central axis is mounted on the mass pound. The present invention realizes double-degree-of-freedom movement in the cylindrical plane through the rolling disc design, reduces the friction damping of the experimental mechanism during the flow-induced vibration of the cylinder, improves the accuracy of the experimental results, and provides support for model experiments to study the flow-induced vibration characteristics of risers. The present invention can be used for riser design in marine engineering.

The utility model discloses an office intelligent anti-theft file cabinet and belongs to the technical field of office equipment. Comprising a first side cabinet and a second side cabinet which are oppositely arranged, clamping grooves are formed in the surfaces of the first side cabinet and the second side cabinet, the sides, facing each other, of the first side cabinet and the second side cabinet are connected through bolts, side plates are arranged on the sides, facing each other, of the first side cabinet and the second side cabinet, and rear plates are arranged on the back faces of the first side cabinet and the second side cabinet; a first cabinet door and a second cabinet door are rotationally arranged on the upper portion and the lower portion of the front sides of the two side plates correspondingly. According to the utility model, the first side cabinet and the second side cabinet are respectively arranged in the cabinet body formed by the rear plate, the side plates and the bottom plate, and the first side cabinet and the second side cabinet are mutually combined and connected through bolts, so that the strength of the overall structure in the whole cabinet is enhanced, and violent damage is avoided; and meanwhile, the side plates are inserted into the insertion blocks on the first side cabinet and the second side cabinet through the insertion grooves, so that the connection strength of the side plates is improved.

The utility model discloses a support frame for back-jacking an elevator foundation, and particularly relates to the technical field of support frames, which comprises two groups of support components for back-jacking an elevator foundation structure, each supporting assembly comprises two supporting pieces, bottom steel plates are installed at the bottoms of the supporting pieces, a plurality of adjusting holes distributed at intervals are formed in the bottom ends of the supporting pieces in a penetrating mode, fixing pieces are arranged outside the bottom ends of the supporting pieces in a sleeving mode, and a plurality of fixing holes corresponding to the adjusting holes are formed in the two sides of the top ends of the fixing pieces. Through the arrangement of the telescopic keel, supporting adjustment can be carried out according to the length of the elevator foundation structure, and meanwhile the stretching height of the supporting piece can be adjusted according to the height of the elevator foundation structure through the penetrating cooperation of the plug pins, the adjusting holes and the fixing holes; therefore, corresponding adjustment can be carried out according to the length and the height of the elevator foundation structure, the practicability of the elevator foundation structure is improved, the overall structure is convenient to install, and the space occupancy rate is low.

The invention discloses a rotary instrument desk device of an engineering machinery cab, which belongs to horizontal transportation equipment of harbor machinery and comprises a rotary instrument desk assembly, the rotary instrument desk assembly comprises a rotary instrument desk support, a steering assembly and a tractor seat are arranged on the rotary instrument desk support, an accelerator pedal and a brake pedal are arranged on the steering assembly, and the brake pedal is arranged on the steering assembly. An electric rotating disc is arranged below the rotating instrument desk support, the lower portion of the rotating instrument desk support is connected with the upper end of a connecting vertical rod, the connecting vertical rod penetrates through a through hole in the electric rotating disc and then is connected with a flexible conveying mechanism, and the flexible conveying mechanism is used for containing a pipeline wiring harness led out of a rotating instrument desk assembly. And the electric turntable and the flexible transmission mechanism are respectively positioned above and below the floor of the cab. The device is easy and convenient to install, light and handy to operate, safe, reliable and capable of improving the operation comfort of a driver and improving the operation efficiency.

The present invention provides an adjustable torque calibration anti-torsion device, including a fixed shell, an inner slider, an adjustment rod and an anti-torsion rod. A slide groove is provided inside the fixed shell, an opening is provided on the surface of the fixed shell, and adjustment rod sockets are provided at both ends of the fixed shell. The inner slider is tightly embedded in the slide groove, the anti-torsion rod passes through the opening and is connected to the inner slider, the anti-torsion rod moves in the opening with the inner slider, the adjustment rod passes through the adjustment rod socket and is connected to the inner slider, and the adjustment rod is used to adjust the position of the inner slider. The spacing of the anti-torsion rods of the present invention is adjustable, which can adapt to the calibration of electric tools of different sizes. The clamping height of the electric wrench is adjustable, and no manual force is required during the calibration process. The electric wrench has a good fitting effect through the inner arc surface of the tool support plate, and can adapt to the working condition where the wrench is tilted at a small angle. The overall structure of the present invention is easy to install and has strong adaptability. It can effectively improve the stability of the vehicle body during the wrench calibration and improve the calibration accuracy.

The utility model relates to the technical field of floor heating temperature controllers, in particular to a temperature controller which comprises a mounting plate, a first clamping plate and a knob, the middle of the front end of the first clamping plate is fixedly connected with a second clamping plate, the left portion and the right portion of the front end of the first clamping plate are respectively provided with a second screw hole, and the left portion and the right portion of the front end of the second clamping plate are respectively provided with a second screw hole. A mounting seat is fixedly connected to the front end of the second clamping plate, a shell is fixedly mounted at the front end of the mounting seat, a floor heating temperature controller body is fixedly mounted at the front end of the shell, a display screen is arranged on the upper portion of the front end of the floor heating temperature controller body, and a plurality of adjusting keys are arranged on the lower portion of the front end of the floor heating temperature controller body. According to the temperature controller, through the arrangement of the first clamping plate and the second clamping plate, installation and fixation of the floor heating temperature controller body are achieved, the structure is convenient to install, and if the floor heating temperature controller body breaks down in the later period, the floor heating temperature controller body needs to be maintained, disassembly is convenient.

The present invention discloses an opening and closing structure of an insulation door in a sintering furnace, including a sealing box door driving structure and an insulation door follower structure. When the one-way acting cylinder pulls the push rod, in the first stage, the sealing box door gradually opens while the insulation door remains stationary, and the gap between the door hanging plate bracket and the limiting card plate gradually narrows; in the second stage, the door hanging plate bracket and the limiting card plate are offset, and the one-way acting cylinder continues to pull the push rod, continuing to drive the sealing box door to open, and at the same time drives the insulation door to open to overcome the pressure of the first spring structure and the second spring structure. When the one-way acting cylinder applies a thrust to the push rod under the action of the built-in spring, the sealing box door gradually closes, and the insulation door 8 also gradually closes under the pressure of the first spring structure and the second spring structure. Compared with the prior art, the opening and closing structure of the insulation door in the sintering furnace of the present invention can open and close the insulation door, independently open and close the sealing door, and eliminate the influence of different thermal expansions of the insulation door and the sealing box door.

The utility model relates to the technical field of packaging bottles, in particular to a vacuum bottle capable of discharging liquid in a rotating mode, which comprises a bottle body and a rotating head, the rotating head is connected to the top of the bottle body in a rotating mode, the rotating head is provided with a liquid outlet hole and an air hole which are communicated with the outside and the inside of the bottle body, and a scraper is fixedly installed at the bottom of the rotating head and is in a vertically-arranged plate shape. The scraper is located between the liquid outlet hole and the air hole, and the outer edge and the lower edge of the scraper abut against the inner wall of the bottle body; a limiting table is arranged in the bottle body, the inner edge of the limiting table abuts against the scraper, the outer edge of the limiting table is connected with the inner wall of the bottle body, and the upper edge of the limiting table abuts against the rotating head. And meanwhile, the air hole is used for balancing the pressure and the atmospheric pressure in the bottle body, the structure is easy and convenient to install, the sealing is reliable, and the production difficulty is low.

The utility model discloses anti-adhesion treatment equipment for gypsum board mixing in the technical field of gypsum board mixing equipment, which comprises a tank body, a driving gear ring is rotatably mounted on the outer ring of the tank body, and a driving part for controlling the driving gear ring to operate is mounted on the outer ring of the tank body through a welded support plate; the top of the driving gear ring is detachably provided with a support frame through a connecting piece, two groups of symmetrical moving pieces are arranged in the support frame in a sliding manner, and the bottoms of the two groups of moving pieces are respectively provided with a scraping strip attached to the inner wall of the tank body. The problems that a large amount of gypsum board raw materials are often attached to the inner wall of a stirring tank due to the fact that the viscosity of the gypsum board raw materials is high, the gypsum board raw materials attached to the edges are prone to uneven mixing, and the materials attached to the inner wall of the stirring tank are inconvenient to clean after a material mixing device is used and are not beneficial for people to use are solved.

The utility model discloses a metal integrated connecting pipe accurate positioning and installing tool which comprises a positioning and installing mechanism, the positioning and installing mechanism comprises a threaded pipe connected to a rack in a penetrating mode, a half-shaped groove is formed in the middle of the front face of the threaded pipe, a bearing frame is fixedly arranged in the half-shaped groove in a sleeved mode, and a guide frame is arranged in the middle of the bearing frame in a sleeved mode. Rolling grooves are formed in the inner wall of the guide frame at equal intervals, guide balls are arranged in the middles of the rolling grooves in a rolling mode, and the multiple guide balls make rolling contact with the outer surface of the metal integrated connecting pipe; an auxiliary supporting mechanism is further included and comprises an open groove formed in the lower portion of the outer surface of the bearing frame, a support is clamped to one end of the inner wall of the open groove, a supporting rod penetrates through the lower portion of the support, and one side of the middle of the outer surface of the supporting rod is sleeved with a supporting rod. According to the utility model, the longer metal integrated connecting pipe can be conveniently extended into the threaded pipe in a labor-saving manner, the structure of the longer metal integrated connecting pipe can be conveniently and quickly mounted, the time and labor are saved, the use effect and the mounting efficiency are improved, and the use is convenient.

The utility model relates to industrial computer technical field especially is a kind of micro industrial computer, including shell bottom plate, component upper cover, front baffle, back baffle and extension antenna, the base surface corner of shell bottom plate is respectively provided with copper column support, the outer wall of copper column support is equipped with extension board, the utility model is contacted by setting PCB screw hole and rivet column, wherein the IO port of extension board and the inner wall of complete machine contact, effectively improve the anti-interference ability of complete machine, while external grounding screw, can be connected with ground, further guarantee the performance of complete machine, overall structure is easy to install, component upper cover is fixed by screw, can be easily disassembled and assembled, shell bottom plate integrated support, it is convenient to install in any position, shell bottom plate and component upper cover of aluminium alloy material passive heat dissipation, passive heat dissipation, high efficiency stable, solid and reliable, compression resistance and drop resistance, external anodizing, effectively prevent shell oxidation rust, better practicality.

The present invention discloses a prefabricated foundation in a shield tunnel, including a prefabricated concrete foundation, characterized in that: the prefabricated concrete foundation is provided with a horizontally arranged foundation top surface and a foundation bottom surface, one side of which is a foundation arc surface arranged corresponding to the pipe segment, and the other side is a foundation vertical surface, the prefabricated concrete foundation is provided with a reserved bolt hole, the reserved bolt hole extends from the foundation top surface to the foundation arc surface, and a reserved hand hole is arranged on the foundation top surface near the reserved bolt hole; a caulking chamfer is arranged at the junction of the foundation top surface and the foundation arc surface, and a reserved steel bar matched with the pipe segment is arranged below the foundation bottom surface. On the one hand, the present invention avoids the previous process of planting a large number of steel bars on the pipe segment during the construction of the shield tunnel foundation, and reduces the damage to the pipe segment structure; on the other hand, it avoids the erection of a large number of templates for foundation construction, increases construction efficiency, and improves the prefabrication assembly rate of the shield tunnel; the structure is easy to install, the connection is firm, the construction is fast, and it is economical and reasonable.

According to the technical scheme, the pipe buffering, storing and conveying mechanism is characterized by comprising a first conveying assembly, a storing box, a guiding assembly, a second conveying assembly, a third conveying assembly and a control assembly; an elastic pressing block and a detection assembly are arranged in the material storage box, wherein the detection assembly is used for recognizing the deformation displacement angle of the elastic pressing block and sending a deformation displacement signal of the elastic pressing block to the conveying control assembly so that the control assembly can control and adjust the conveying speed of the second conveying assembly. The detection assembly is electrically connected with the control assembly; a feeding opening of the storage box faces the discharging end of the first conveying assembly; a discharge port of the storage box faces the second conveying assembly; the whole structure is convenient to install, dynamic and stable conveying of the pipe materials in the material storage box can be effectively achieved, high-speed and continuous-beat feeding operation of the buffering material storage mechanism can be achieved, the conveying efficiency of the pipe materials is effectively improved, and the working energy efficiency is improved.

The invention relates to the field of household appliances, and discloses a rotation driving structure and a water outlet device. The rotary driving structure is compact and reasonable, the arrangement space can be saved, the occupation of the internal space of the water outlet column is reduced, the internal space of the water outlet column is optimized, and the layout of the water inlet pipe and the electric wire is easier. The rotation driving structure is applied to the water outlet device, the water outlet device comprises a water outlet column and a faucet, the faucet is rotatably arranged at the top of the water outlet column through the rotation driving structure, the rotation driving structure comprises a driving part and a transmission mechanism, the driving part is fixed to the water outlet column, and an output shaft of the driving part is arranged in an offset mode relative to the axial direction of the water outlet column. The transmission mechanism is arranged in the water outlet column, and the driving piece drives the faucet to rotate through the transmission mechanism.

The utility model provides an anti-impact servo protection device of a material testing machine, which is powered by high-pressure gas and comprises a three-way valve with three flow channel ports, and the included angle of the three flow channel ports is 120 degrees. The three flow channel openings are connected with an oil inlet pipe, an oil return pipe and a main oil pipe respectively. The other end of the oil inlet pipe is communicated with the supercharger, the other end of the oil return pipe is communicated with the oil tank, and the other end of the main oil pipe is communicated with a main engine oil cylinder of the material testing machine. And a micro flow meter is arranged on a pipeline of the main oil pipe. The material testing machine anti-impact servo protection device with the high-pressure gas as power further comprises a controller in signal connection with the micro flow meter and the three-way valve, and the controller is used for controlling the communication state of the three flow channel openings. The anti-impact servo protection device for the material testing machine with the high-pressure gas as the power is simple and convenient in structure installation and high in reliability, does not need to modify a host frame of the existing equipment during use, and can adjust the threshold value of the micro flow meter according to test requirements to meet different use environments.

The utility model relates to business library technical field especially is concerned about a business library library area splicing structure, including business library library body and the library area, the inside of library area is equipped with the installation area of business library library body placement and the operating area of operator access, be equipped with the prevent and control isolation door of switch on the library area, when the prevent and control isolation door is in the closed state only can carry out the opening and closing operation to business library library body, the library area is formed by the top plate, the bottom plate and the side plate subassembly splicing, the side plate subassembly includes a plurality of side panels and a plurality of stand, every two adjacent side panels are connected through a stand, the side of stand near the inside of library area is equipped with the first connecting part, the side of side panel near the inside of library area is equipped with the cooperation part of first connecting part cooperation connection, the library area of the utility model can place business library library body, still has the advantage that the land occupation area is small, the anti -damage ability is good and the support intensity is high.