74results about How to "Increased installation flexibility" patented technology

The utility model discloses a real-time signal transmission device, which belongs to the technical field of signal transmission, and comprises an outer shell and an inner shell, the upper ends of the outer shell and the inner shell are open, the two ends of the inner wall of the outer shell are provided with sliding chutes, the two ends of the inner shell are fixedly connected with sliding blocks matched with the sliding chutes, and the sliding blocks are connected with the sliding chutes. A plurality of signal transmission interfaces are installed at the end, away from the outer shell, of the inner shell, first threaded holes are formed in the two ends of the outer shell, limiting screws are in threaded connection with the interiors of the first threaded holes, and a plurality of limiting holes arranged at equal intervals are formed in the two ends of the inner shell. Stepless adjustment of the internal capacity of the device is achieved, when the optical fiber cable is long, the inner shell can be stretched to enlarge the storage space, and signal attenuation caused by excessive bending of the cable is avoided; when the cable is short, the inner shell can be compressed to reduce the size of the device, and the installation flexibility and the space utilization rate are remarkably improved.

The utility model relates to a power distribution cabinet with a modularized structure, and relates to the technical field of power distribution cabinets, the power distribution cabinet comprises a cabinet body, each mounting plate module is detachably provided with cooling and heat dissipation terminal boxes in a vertically staggered manner, the top surface of each cooling and heat dissipation terminal box is provided with an inverted L-shaped hoisting rod, the free end of each L-shaped hoisting rod is provided with a temperature sensor, and the temperature sensor is connected with the cabinet body. The temperature sensor extends to the position between the electric devices in the inner cavity of the cabinet body and is used for monitoring the temperature in real time, each air supply pipeline is connected with the adjacent cooling and heat dissipation terminal boxes through hoses, and the heat dissipation air source module conveys air into the cooling and heat dissipation terminal boxes through the air supply pipelines and the hoses and discharges the air from outlets of the cooling and heat dissipation terminal boxes. And blowing and heat dissipation are carried out on the electric device whose heat accumulation is monitored. The air flow path can be accurately controlled according to information fed back by the temperature sensor, it is ensured that cooling air only flows to areas with abnormal temperature, the heat dissipation efficiency is improved, and energy is saved.

The utility model discloses a kitchen range's water pan structure, including water pan body, the water pan body is provided with burner avoidance hole and is used for connecting the mounting counter bore of water pan body and burner, the mounting counter bore is arranged aside the mounting hole, the mounting counter bore is detachably connected with the shield cap that is used for shielding the mounting connecting piece, the shield cap is detachably connected with the mounting connecting piece, and the mounting connecting piece is detachably connected with the mounting counter bore. According to the water pan, the mounting counter bore is formed in the water pan body, and the shielding cap is arranged in the mounting counter bore, so that mounting connecting pieces such as screws and nuts are effectively shielded, and the overall attractiveness of a stove is improved. By means of the design, after the cooker is installed, the appearance of the cooker is neater and smoother, no exposed installation part exists, and the high requirement of consumers for the appearance of the cooker is met.

The utility model belongs to photovoltaic support technical field especially has a photovoltaic support with waterproof function, including main body support, the bottom fixed mounting of main body support has fixed plate, the inboard fixed mounting of fixed plate has first movable axle, the surface movable mounting of first movable axle has support column. The rainwater on photovoltaic board is blocked by the water baffle, the protruding block in the secondary drainage is used for accelerating the flow guide, the water flow is collected finally from the main drainage to the drainage outlet, the above-mentioned parts can significantly reduce the risk of water penetration, prolong the service life of the support, the support column is connected with the fixed plate through the first movable axle, and the support base at the bottom of the supporting leg provides stable support, the hole and the fixed column realize height adjustment, the photovoltaic board is placed on the placing plate, is clamped into the fixed groove by the fixing device and is locked, the support column and the supporting leg can adapt to uneven ground, adjust different holes to improve the installation flexibility, and the fixing device ensures the firm installation of the photovoltaic board.

The utility model discloses a series connection double oil cylinder drive's car resister in tank, including hydraulic pump station, left car stop and right car stop still include the hanging basket of fixed in the cage bottom plate, be used for driving left drive oil cylinder, be used for driving right drive oil cylinder of left car stop, hydraulic pump station, left drive oil cylinder and right drive oil cylinder set up in the hanging basket, the piston rod cavity of left drive oil cylinder is linked with the piston cavity of right drive oil cylinder, constitutes the oil circuit series connection structure of left, right drive oil cylinder, hydraulic pump station is used to drive left drive oil cylinder, right drive oil cylinder synchronous telescopic, drives left car stop and right car stop synchronous opening and closing. The utility model discloses compact structure, and the space is small, satisfies the functional requirement of car resister in tank.

The utility model discloses a kind of excitation system de-excitation cabinet internal environment monitoring system, including vertical support, control box, two horizontal supports and multiple sensors.The excitation system de-excitation cabinet internal environment monitoring system utilizes the installation mode of horizontal support and installation branch, can increase or decrease the corresponding sensor according to the monitoring needs of de-excitation cabinet internal environment, and adjust the position of sensor, realize the multipoint multi-parameter monitoring in de-excitation cabinet, ensure the reliability of de-excitation operation;Each sensor is installed using metal bellows, so as to facilitate adjusting the position and monitoring angle of sensor, with good installation flexibility;Wiring is carried out using vertical support, horizontal support and metal bellows, so as to ensure the regularity of electrical connection cable.

The invention discloses an aeration pipe mounting structure for a biochemical pool, which comprises an aeration pipe assembly and an air distribution pipe, the air distribution pipe is sleeved with at least one aeration pipe connector, the aeration pipe connector is connected with one end part of at least one aeration pipe assembly, and the other end part of at least one aeration pipe assembly is connected with the aeration pipe assembly. The other end of the aeration pipe assembly is connected with the bottom of the biochemical pool through a bottom connecting piece, the aeration pipe connector comprises an air distribution pipe, a threaded end head and a tail cover, the threaded end head and the tail cover are axially arranged at the two ends of the air distribution pipe respectively, and a poly-plastic microporous pipe coaxial with the air distribution pipe is arranged between the threaded end head and the tail cover. Sealing pieces are arranged between the two ends of the poly-plastic microporous pipe and the threaded end and between the two ends of the poly-plastic microporous pipe and the tail cover, the threaded end is used for being connected with an aerator pipe connector, and the tail cover is used for being connected with a bottom connecting piece. The aerator pipe mounting structure can solve the problems that an existing aerator pipe mounting structure is short in service life, prone to falling off, high in construction cost and low in efficiency.

This utility model relates to the field of heating equipment technology, and in particular to a clamp-on suspended heater, comprising a housing having a mounting cavity and a ventilation duct communicating with the mounting cavity, and a drainage hole on the outer wall of the housing; a suspension assembly mounted on the outer wall of the housing for suspending the housing; a heating assembly mounted within the mounting cavity; a ventilation assembly mounted within the mounting cavity with its outlet facing the heating assembly; and a control assembly mounted within the mounting cavity and electrically connected to the heating assembly and the ventilation assembly. This utility model facilitates quick fixing of the heater in a suitable position and reduces the impact of humid environments on the electrical circuitry.

The utility model relates to the technical field of permanent magnet generator discloses a low loss's permanent magnet generator, including the casing, the rear end threaded connection of casing has the back cover, the inside fixedly connected with bearing support of back cover, the front end threaded connection of casing has the front cover, the surface center of front cover inserts and is equipped with the bearing, the inner wall between bearing, bearing support rotatably connects with permanent magnet rotor, the inside of casing is provided with stator subassembly, and the outer surface between casing and stator subassembly is provided with the heat dissipation component. In the utility model, through stator subassembly, heat dissipation component, be equipped with a plurality of mounting recesses on the coil support of stator frame, the heat exchange square tube with the heat exchange fin is built -in, and is connected through the shunt connector. Under the action of circulating pump, the cooling liquid in cooling liquid tank can circulate in the heat exchange square tube connected with the shunt connector, thereby the heat of the inside of casing is heat exchanged and is cooled down, reduces the heat loss of generator, prolongs its life.

The utility model discloses an explosion-proof control cabinet which comprises a shell and a multi-element integrated assembly, a plurality of supporting legs are fixedly arranged at the bottom of the shell, an opening and closing opening, a lower rotating opening and an upper rotating opening are formed in the shell, an opening and closing door, a rotating ring and a rotating disc are arranged in the opening and closing opening, the lower rotating opening and the upper rotating opening respectively, an air inlet pipe is arranged on the rotating ring, and an air outlet pipe is arranged on the rotating disc. An exhaust fan and an air outlet pipe are arranged on the rotating disc, and a transmission shaft is rotationally arranged on the shell through two supporting plates. According to the utility model, through the design that the air inlet pipe and the air outlet pipe can be rotated to adjust positions, the explosion-proof control cabinet can effectively avoid various obstacles such as industrial pipelines, other equipment or building structures on an installation site. No matter in a narrow underground pipe gallery or an equipment compartment with dense space, the pipeline layout can be flexibly adjusted, it is ensured that the air inlet and the air outlet are located at the optimal ventilation position, and the installation flexibility and applicability of equipment in the complex environment are remarkably improved.

The invention relates to the technical field of power line installation equipment, in particular to an anti-bird type lead anti-falling buckle. Comprising a buckle body. The two swing frames are arranged on the buckle main body; the two sliding blocks are respectively arranged on the two swing frames in a sliding manner; the two limiting frames are slidably arranged on the two sliding blocks correspondingly, arc-shaped grooves are formed in the opposite sides of the two limiting frames, and elastic pads are arranged on the opposite sides of the two limiting frames; and the adjusting mechanism is arranged on the limiting frames, and the adjusting mechanism is used for adjusting the gap between the two limiting frames. By adjusting the sliding stroke of the sliding block and the clamping distance of the limiting frame, the device can conveniently and fixedly clamp column type porcelain insulators with different neck diameters and different specifications, the defect that a traditional device only adapts to insulators of a single specification is overcome, and the field installation flexibility and universality are remarkably improved.

This utility model discloses a structural component for preventing burn-out of a prefabricated low-voltage switchgear. The structural component, housed within the prefabricated low-voltage switchgear, includes: a temperature sensor, at least one of which is located at the copper busbar; and a temperature and humidity controller connected to the temperature sensor and mounted on the side wall of the prefabricated low-voltage switchgear via a connecting member. The connecting member is fixedly connected to the side wall, while the temperature and humidity controller is detachably connected to the connecting member. The temperature and humidity controller is also connected to the trip circuit on the high-voltage side of the prefabricated low-voltage switchgear. The temperature sensor allows for timely monitoring of the temperature near the copper busbar. When the monitored temperature exceeds a set temperature, the temperature and humidity controller transmits a signal to the trip circuit, tripping the prefabricated low-voltage switchgear for protection. This facilitates maintenance and repair by personnel, preventing burn-out of the prefabricated low-voltage switchgear and avoiding severe economic losses.

The utility model discloses an improved ultrasonic transducer belongs to ultrasonic transducer field, including upper cover and lower cover, upper cover and lower cover are assembled together, and the part of upper cover is connected with lower cover is provided with ceramic wafer, and ceramic wafer is equipped with positive electrode piece and negative electrode piece, is equipped with adjustable mounting structure on lower cover, and the position of ceramic wafer on lower cover is installed with limit abutting structure. Through setting outer thread on lower cover, cooperation adjustable mounting structure, limit abutting structure and limit sleeve use, adjustable mounting structure screw thread connection is on outer thread, can carry out height adjustment, and then change the installation height of entire ultrasonic transducer, utilize limit abutting structure and form the abutting action to adjustable mounting structure, ensure that adjustable mounting structure can be more stably set on the outer thread on lower cover, avoid the situation that ultrasonic transducer appears loose in the operation, guarantee the use stability of ultrasonic transducer.

The utility model provides a kind of construction engineering protective screen, it is related to protective screen technical field, the utility model includes protective screen body, protective screen body is installed and fixed on ground by connecting column and provides protection for personnel, wherein protective screen body is combined by first protective screen and second protective screen;Adjusting component, wherein adjusting component is arranged between first protective screen and second protective screen, the length and size of protective screen body are adjusted by changing the spacing between first protective screen and second protective screen, the length and angle of protective screen body can be flexibly changed by setting adjusting component, so that protective screen body can be adapted to a variety of ground and scene use, reduce the length of protective screen body after installation or angle is not adapted, cause the gap between protective screen body and building or another protective screen body, so that gap area is not protected, affect the situation of the effect of personnel protection, improve the installation flexibility and use convenience of protective screen body.

The utility model relates to an inductive control non-isolated constant current circuit which comprises an input protection rectification circuit, a filter circuit, an induction module power supply circuit, a PWM control circuit, a step-down constant current control circuit and an output filter circuit. The input protection rectification circuit converts commercial power into direct current and generates direct current bus voltage through the filter circuit. The induction module power supply circuit takes electricity from the direct current bus and provides a low-voltage power supply for the induction module. A PWM signal output by the induction module is converted into a threshold voltage signal of an ROVP pin of the constant-current control chip through the PWM control circuit, and a light source is controlled to start and stop through voltage comparison; the step-down constant-current control chip drives the light source to be on and off. According to the scheme, a non-isolated framework is adopted, and through voltage division power supply and a PWM-ROVP signal conversion mechanism, an independent power supply chip and a complex control circuit are omitted, the structural layout is simplified, the number of elements and the production cost are reduced, and the lamp size is reduced.

This utility model discloses an installation structure for a weighing module of an oscillating feeder, belonging to the technical field of yeast production equipment. The installation structure includes an oscillating feeder and a weighing module. The oscillating feeder includes an oscillating table and a bottom support. The weighing module is fixed to the support via a detachable installation structure. The weighing module includes a sealed metal housing with sealant at the cable interfaces on both sides. A through-type inclined heat dissipation channel is provided on the housing. This utility model, through its dovetail groove and threaded rod installation structure, allows for horizontal sliding adjustment of the weighing module's installation position and angle, or equipment replacement, without the need for opening holes in the support. Lateral installation reduces water accumulation near the weighing module after cleaning, minimizing the impact of moisture on the module. The sealant at the cable interfaces isolates the inside and outside of the housing, preventing the entry of humid air and water, maintaining dryness inside the housing, ensuring stable weighing data, and reducing the frequency of circuit board repairs.

The keel structure comprises a first supporting mechanism and a second supporting mechanism, the first supporting mechanism comprises a first keel fixed to a building, a first fixing block is installed in the first keel, threaded columns are fixed to the two ends of the first fixing block, and the threaded columns are fixed to the second supporting mechanism. And an adjusting mechanism is mounted on the threaded column. Compared with the prior art, through the transmission design of the first supporting mechanism, the threaded column in the first supporting mechanism and the adjusting mechanism, the horizontal position of the shell is adjusted, then the distance between the adjacent connecting mechanisms is adjusted, and the installation flexibility of the humidity adjusting plate is improved; and meanwhile, the connecting mechanism is arranged, a second adjusting rod in the connecting mechanism is matched with a second threaded sleeve, the distance between the two connecting plates is adjusted according to the distance between the first supporting mechanism and the second supporting mechanism, installation can be conducted without field cutting, and the installation efficiency is greatly improved.

The utility model relates to the field of air cooling heat dissipation discloses a single -deck air cooling heat dissipation device convenient to installation, including fixed base, the top of fixed base is provided with the frame, the bottom of fixed base is provided with the mounting mechanism, the inside of frame is provided with the fan, the top of fixed base is provided with fixed mechanism, the fixed mechanism includes the cylinder and elastic support, the cylinder fixedly connected in the top of fixed base, the frame is inserted in the surface of cylinder, the surface fixed connection of cylinder has the lug, the bottom of lug is provided with the recess, the both ends of elastic support are provided with the lug ear. In the utility model, through the lug ear of elastic support and enter the hole of frame, through the recess cooperation of the protruding portion of elastic support and the bottom of lug, make the elastic support give an downward pressure force, ensure the stable connection of fan and frame, can quickly take down the frame outside fan, reduced the difficulty of installation and maintenance, improved work efficiency.

The utility model discloses a kind of pillar fixing assemblies, belong to pillar fixing technical field, including as independent component can be separately separated first fixed block, second fixed block and third fixed block, second fixed block can be fixedly connected between first fixed block and third fixed block by screw;Groove is set between adjacent two fixed blocks and is matched for clamping pillar, so that two pillars combination constitutes cross shape.The pillar fixing assembly of the utility model aims at solving the problem that traditional fixing piece processing is easy to deform and the processing cost is high, realizes the simplification process while avoiding processing deformation, reaches the effect of reducing processing difficulty and processing cost.

The utility model discloses a refrigerant leakage monitoring device for refrigeration equipment, and mainly relates to a refrigerant leakage monitoring device. Comprising a machine body, a display screen is installed on the surface of the machine body, a gas sensor is installed at the lower end of the machine body, an adjusting structure is arranged on the side, away from the display screen, of the machine body, the adjusting structure comprises a mounting frame, the mounting frame is fixedly connected with the machine body, and a plurality of mounting feet are fixedly connected to the peripheral surface of the mounting frame; a bandage is slidably connected to the inner wall of the mounting frame, a positioning pipe is fixedly connected to one end of the bandage, a fixing frame is slidably connected to the arc face of the positioning pipe, the upper surface of the fixing frame is fixedly connected with the mounting frame, stop levers are inserted into the two ends of the positioning pipe in a threaded mode, and an adjusting frame is fixedly connected to the lower surface of the mounting frame. The beneficial effects of the utility model lie in that the machine body is fixed at a designated position by using the binding band which can be conveniently tightened, thereby reducing the difficulty of installation operation and improving the installation flexibility.

The utility model relates to agricultural cultivation machinery, in particular to a plowing and rotating all-in-one machine which comprises a machine frame, a plurality of ploughs are arranged on the machine frame, and a vertical rotating knife is correspondingly arranged behind each plough. A depth limiting wheel is arranged on one side of the rack; a transmission system is arranged on the machine frame and comprises a first transmission shaft, a reverser, a second transmission shaft and a power distribution shaft, the rear end of the first transmission shaft is connected with the input end of the reverser through a universal joint, and the two ends of the second transmission shaft are connected with the reverser and the power distribution shaft respectively. And the power distribution shaft is in driving connection with a rotating shaft of the rotary knife through a gear set. A shell of the power distribution shaft is fixedly connected with the rack through a connecting rod, and a reinforcing plate is arranged between the connecting rod and the rack. The connecting rod is detachably connected with the rack through a bolt; the top of the reinforcing plate is detachably connected with the connecting rod through a bolt. The transmission structure is simple, and the rotary knife system is detachable.

The utility model discloses an integrated intelligent control device, which comprises an intelligent screen and a function module, a first detachable connecting part is formed on a shell of the intelligent screen, and a second detachable connecting part is formed on a shell of the function module; the second detachable connecting part is connected with the first detachable connecting part in a matched mode, and the function module is detachably installed on the intelligent screen. According to the utility model, through the adaptive connection of the second detachable connection part and the first detachable connection part, the function module is detachably installed on the intelligent screen, that is, the function module and the intelligent screen are integrated into a whole to form the integrated intelligent control device, so that during installation, only a drive-by-wire box needs to be configured corresponding to the intelligent screen, and the function module is integrated on the intelligent screen; a drive-by-wire box does not need to be configured correspondingly, the wall body only needs to be provided with the intelligent screen corresponding to the installation position of the drive-by-wire box, and the installation requirement and the production cost can be reduced.

The utility model relates to the technical field of automobile brake, provide a front disc brake failure protection device, including protection structure: protection structure coaxial installation in the outside of main part structure, with and main part structure's brake executing component linkage cooperation, main part structure: main part structure includes brake disc, brake caliper, main brake pipeline, main cylinder, fixed plate and mounting seat, brake caliper fixedly connected in the outside of brake disc, fixed plate fixedly connected in the outside wall of brake caliper, the utility model discloses a protection structure is set up, through pressure sensor and displacement sensor between auxiliary cooperation, can make controller synchronous issue instruction, can make electromagnetic lock unlock, electric push rod energized and extend, and make controller control electric push rod shrink, and electromagnetic lock relock spare brake block to initial position, when auxiliary cylinder pressure relief, protection structure recovers the state of readiness, when the front disc brake system failure, can provide emergency protection, improve brake reliability simultaneously.

The utility model discloses an adjustable signboard which comprises a signboard frame, a supporting mechanism and a hanging assembly. The hanging assembly is arranged on the back of the signboard frame and used for enabling the signboard to be hung and fixed to an external fixed object, the supporting mechanism comprises a foldable supporting frame and a rotating shaft, and the foldable supporting frame is connected with the signboard frame through the rotating shaft and can be rotationally attached and stored on the back of the signboard frame; wherein a locking assembly is arranged between the foldable supporting frame and the signboard frame, and the locking assembly is used for locking the foldable supporting frame to a storage state, so that the hanging assembly is switched to be used. According to the technical scheme, the signboard structure has the hanging function switching function and the base supporting function switching function.

The utility model discloses water conservancy dam reinforcing equipment, and relates to the technical field of dam reinforcing, the water conservancy dam reinforcing equipment comprises a reinforcing member and reinforcing plates arranged along a dam array, and further comprises a top plate member, the top plate member is arranged at the upper end of the reinforcing member, and a loop bar is fixedly arranged at the bottom of the top plate member; the reinforcing piece comprises an inserting rod, and the inserting rod is inserted into the dam. The bottom plate is fixedly arranged above the outer part of the inserting rod and is arranged between the reinforcing plate and the dam; the reinforcing piece further comprises mounting columns which are linearly arrayed from top to bottom, push blocks are fixedly arranged at the lower ends of the mounting columns and are in a circular truncated cone shape with the radius gradually reduced from top to bottom, inserting pieces are annularly arrayed below the outer sides of the push blocks, inclined faces matched with the push blocks are arranged on the inserting pieces, and protruding strips are symmetrically and fixedly arranged on the outer sides of the mounting columns. According to the utility model, the bonding strength and the installation flexibility of equipment and a dam can be enhanced.

The utility model discloses a cascade industrial water chiller which comprises a liquid storage system, a multi-stage heat exchanger, a multi-stage cooling system and a control system. The liquid storage system comprises a liquid storage tank provided with a liquid inlet and an air return port and a refrigerant pump connected with the liquid storage tank, and is used for storing and supplying a refrigerant; the multi-stage heat exchanger comprises a high-temperature-stage heat exchanger, a low-temperature-stage heat exchanger and an intermediate heat exchanger arranged between the high-temperature-stage heat exchanger and the low-temperature-stage heat exchanger, the intermediate heat exchanger is of a spiral plate type or spraying film type structure, and refrigerant thermal coupling between the high-temperature-stage heat exchanger and the low-temperature-stage heat exchanger The multi-stage cooling system comprises a high-stage compressor and a low-stage compressor which are correspondingly connected with respective heat exchangers; the control system is used for adjusting operation parameters such as compressor frequency, refrigerant pump speed and nozzle angle in real time. The heat exchanger is compact in structure and high in heat exchange efficiency, has intelligent response and energy efficiency optimization capabilities, and is suitable for industrial refrigeration occasions such as multiple temperature zones and deep cooling.

A fire equipment data monitoring device, belonging to the field of data monitoring technology, includes a housing, a microprocessor, a data storage unit, and a communication interface. Connecting components are slidably mounted on both sides of the housing. Each connecting component includes an interface panel, a sealing plate, and a transmission interface. Switching components are fixedly mounted on both sides of each microprocessor. Each switching component includes a connecting line, a signal fusion port, a signal tuning slider, and a switching port. A multi-stage reset rod with compressed ends is fixedly mounted at the top of each signal fusion port. A vertically sliding rod-shaped antenna is provided at the top of each multi-stage reset rod. By employing both wired and wireless communication methods, when one communication link fails, the other can be immediately activated as a backup, ensuring continuous data transmission and improving the system's stability and reliability in various complex environmental changes.

The utility model relates to the technical field of electro-tricycle body accessories, in particular to a frame structure facilitating rapid installation of a front shed of an electro-tricycle, which comprises a body installation beam, a first body installation hole and a second body installation hole. The vehicle shed mounting beams are composed of U-shaped beams distributed on the two sides of the vehicle body mounting beam, an opening of each vehicle shed mounting beam faces the front of the tricycle, and the free end of each vehicle shed mounting beam is provided with a longitudinal through vehicle shed mounting hole. According to the utility model, the driving shed is fixed with the four mounting points through the bolts penetrating through the shed mounting holes, so that the mounting mode is optimized, the mounting strength of the driving shed is enhanced, the structural stability is obviously improved, and the capability of resisting strong wind or severe road conditions is met.

The utility model provides an electric control system assembly support, which relates to the field of supports, and comprises a cabinet body, two opposite vertical frames and a transverse frame, the two vertical frames are respectively fixed on two sides in the cabinet body, one side of each vertical frame is provided with a sliding chute, the front ends of the two vertical frames are axially provided with a plurality of positioning holes at equal intervals, and the transverse frame is fixed on the cabinet body. The transverse frame is slidably installed in the sliding groove and further provided with elastic clamping pieces matched with the positioning holes, the multiple positioning holes are formed in the front end of the vertical frame at equal intervals and matched with positioning columns of the transverse frame, the accurate position of the transverse frame is fixed, the positioning columns are slightly pushed outwards, and the transverse frame slides to the target height. The positioning columns are automatically clamped into the positioning holes through the elastic force of the compression springs, it is guaranteed that the transverse frame is not loosened after being fixed, the problem that a traditional support is inconvenient to adjust is solved through sliding positioning and compression spring self-locking modes, and the installation flexibility is improved.