40results about How to "Small spacing" patented technology

The invention relates to the technical field of power equipment, and discloses a wire arrangement device for a power grid power transmission and distribution line, which comprises a middle support frame, a plurality of connecting frames are arranged on the support frame at intervals along the circumferential direction, and locking hooks capable of being adjusted along the length direction of the connecting frames are arranged on the connecting frames. In an initial state, the locking hook is in contact with one end, far away from the supporting frame, of the connecting frame to form a locking space, and during working, the locking hook is adjusted to be far away from the connecting frame to form a threading channel; according to the invention, the distance between the locking hook and the wire can be shortened by sliding the locking hook out of the connecting frame for adjustment, so that the convenience of hanging the wire arrangement device and the wire is met, and meanwhile, the potential safety hazard is reduced.

The application discloses a preparation method of a graphene / hexagonal boron nitride heterojunction. The target substrate is subjected to cleaning treatment, and then the surface of the cleaned target substrate is changed into hydrophilicity, so that the film can be well laid on the surface of the substrate, and the wrinkles are reduced. A layer of hexagonal boron nitride is arranged on the surface of the hydrophilic target substrate. A layer of PMMA is spin-coated on the surface of the graphene film to be transferred, and then the graphene film is floated in deionized water. Under the surface force of the deionized water, the graphene film can be stretched based on the PMMA. Then, the target substrate with the surface provided with the hexagonal boron nitride is used to be combined with the graphene film with the PMMA layer spin-coated on the surface in the deionized water, so that the target substrate and the graphene film are combined flatly. Then, drying and heating are carried out at a stepped temperature, the distance between the substrate and the sample is shortened, and the crack area is reduced. Finally, through annealing treatment, not only the PMMA residue is reduced, but also the film can be more closely contacted with the substrate.

The utility model discloses a municipal administration cable lays installation frame, include: fixed plate, the inside of fixed plate is provided with rotary groove and is provided with carousel in the inside of rotary groove, the junction of carousel and rotary groove is provided with rotating shaft, carousel is through the rotary connection between rotating shaft and rotary groove, the side of carousel is provided with mounting seat and is provided with sliding rod in the inside of mounting seat, the surface of sliding rod is provided with movable block and the side of movable block is provided with mounting plate. The utility model discloses through setting carousel makes between movable frame and fixed frame can carry out the steering, the cable of convenient elbow place carries out the laying, fixes the cable in the inside of wire groove, rotates first locking piece and second locking piece, makes the interval between movable frame and fixed frame shorten, clamps the cable in wire groove to guarantee its stability, can carry out effective carding to cable simultaneously, avoids the entanglement of cable messiness and causes.

The utility model relates to a film laminating machine, in particular to an intermittent hot stamping film laminating machine which comprises a machine frame, a film feeding roller set, a hot stamping roller set, a feeding assembly and a discharging assembly are arranged on the machine frame, a film feeding path is formed by the film feeding roller set, the film feeding roller set comprises an unwinding roller, a winding roller and a film guiding roller, the hot stamping roller set is arranged on the film feeding path, and the feeding assembly and the discharging assembly are arranged on the machine frame. The hot stamping roller set comprises a hot stamping compression roller and a hot stamping traction roller which are matched with each other, the hot stamping compression roller is close to or far away from the hot stamping traction roller, the hot stamping device further comprises a hot stamping pattern spacing control assembly matched with the hot stamping roller set, the hot stamping pattern spacing control assembly comprises a brake roller and a pull-back roller, the brake roller is close to or far away from the film guide roller, and the pull-back roller is close to or far away from the film guide roller. The film guide roller is located between the unwinding roller and the hot stamping roller set on the film feeding path, the pull-back roller is arranged on the second installation base, the second installation base is arranged in a reciprocating mode, the pull-back roller is located between the film guide roller and the hot stamping roller set on the film feeding path, the film belt does not move, the paper piece moves, and the distance between two hot stamping patterns is effectively shortened.

The utility model provides a pasty packaging structure which comprises a pasty body made of silica gel and a plastic sheet, the section outline of the pasty body is in an arc shape and has uniform thickness, and a back glue layer is arranged on the inner concave face of the pasty body. The bra body is pressed downwards towards one side of the concave surface and flattened, and then is flatly attached to the surface of the plastic sheet through the back adhesive layer, so that the whole bra packaging structure is in a flat shape. The bra body is flattened and then flatly attached to the surface of the plastic sheet, so that the whole bra is flat, the occupied space is small, compression deformation is not prone to occurring, only a packaging bag needs to be sleeved outside, and the packaging cost is obviously reduced; due to the fact that the bra body is made of the silica gel material, the bra body can restore to the original shape only by being torn off from the plastic sheet during use, the bra body only needs to be pasted on the plastic sheet again after being cleaned during use, the back adhesive layer is attached to the plastic sheet, does not adhere to dust again and does not suspend in the air, viscosity can be kept for a long time, and the service life of the bra is prolonged.

The utility model relates to a vehicle-mounted back-row support and a fan. The vehicle-mounted back-row support comprises a first clamping plate and a second clamping plate. A first positioning step and a second positioning step are arranged on the first clamping plate at an interval; the vehicle-mounted back-row support further comprises a first connecting assembly and a second connecting assembly. The first connecting assembly and the second connecting assembly are both located between the first positioning step and the second positioning step, and the first connecting assembly and the second connecting assembly are distributed on the two sides of the center line of the first positioning step and the second positioning step. The structure is very simple, and meanwhile, the headrest rods are positioned through the first positioning step and the second positioning step, so that the compatibility of different sizes and different distances of the headrest rods can be effectively improved; in addition, the first connecting assembly and the second connecting assembly which are adjacent to the first positioning step and the second positioning step respectively are used for completing connection, the distance between a connecting point on the support and a corresponding force bearing point on the headrest rod can be shortened, and the strength of the clamping force is effectively improved.

This invention provides an inverted liquid-cooled battery pack and its assembly method, including a battery module and a cooling assembly. The battery module includes at least one cell group, with the cells within the cell group electrically connected via conductive busbars. The cooling assembly includes a cooling plate, on which the battery module is inverted, allowing direct heat exchange between the conductive busbars and the cooling plate, thus shortening the heat transfer distance. A thermally conductive elastic pad can be placed between the cooling plate and the conductive busbars, using the battery module's own weight to press it down, while fasteners further secure the battery module to the cooling plate, increasing the contact area. A support member is provided between the cooling assembly and the cell group, with mounting grooves, placement grooves, and support holes for accommodating the thermally conductive elastic pad and the conductive busbars, and for the tabs to pass through and connect to the conductive busbars. The support member also has vent grooves, which, in conjunction with the cooling plate, form an exhaust channel to guide the electrolyte out when the explosion-proof valve ruptures. This invention offers high heat dissipation efficiency, good compatibility, and low manufacturing cost.

The utility model relates to a frame-type photovoltaic tile structure, the frame-type photovoltaic tile structure comprises a fixed frame and a photovoltaic panel, the fixed frame comprises a first installation part and a second installation part which are arranged along the vertical direction, the first installation part is provided with an installation groove, the photovoltaic panel is installed in the installation groove, the first installation parts of the adjacent frame-type photovoltaic tile structures are arranged in an abutting fit manner, and the second installation parts of the adjacent frame-type photovoltaic tile structures are arranged in an abutting fit manner. And the adjacent frame-type photovoltaic tile structures are mutually buckled and connected through the second mounting parts. According to the frame-type photovoltaic tile structure provided by the invention, the problems that the space between the photovoltaic tiles is occupied due to the fact that connecting pieces are arranged between the existing photovoltaic tiles, so that the space between the photovoltaic tiles is large, and the space utilization rate becomes low are solved.

The utility model discloses a work piece feeding device for bamboo wood component drilling equipment, which comprises a drilling workbench and a feeding mechanism, the feeding mechanism comprises a group of isolation plates, and corresponding baffle plates are respectively and fixedly connected between the upper parts of two sides of the isolation plates; the material separating assembly comprises a set of S-shaped blocking and pushing pieces which are installed on the lower portion of the baffle in a swinging mode, and the S-shaped blocking and pushing pieces are driven by a set of synchronous pushing air cylinders respectively; the separation discharging assembly comprises a set of conveying belts, and the conveying belts are installed between the corresponding tensioning rollers in a tensioning mode; the middles of the tensioning rollers are arranged in a concave mode, the middles of the tensioning rollers located on the lower portion are fixedly connected with corresponding cylindrical magnet pieces in a sleeved mode, and the middles of the conveying belts are movably provided with corresponding bearing plates. And the material pushing stop block is used for pushing the bamboo and wood components to the drilling station of the drilling workbench one by one. According to the feeding device, excessive friction of the bamboo components in the feeding process can be avoided, and feeding smoothness can be effectively guaranteed.

This application relates to a double-layer straight-line tool magazine and a precision engraving machine. The double-layer straight-line tool magazine includes a tool magazine body, a first drive mechanism, and a second drive mechanism. It includes an upper tool disc and a lower tool disc stacked vertically. Both the upper and lower tool discs have multiple rows of tool positions arranged in a second direction along a first direction, and the tool positions are used to load tool holders. The first drive mechanism is driven by the tool magazine body, driving the tool magazine body to move along the first direction. The second drive mechanism is driven by the lower tool disc, driving the lower tool disc to move along the first direction. The upper tool disc and the lower tool disc form a double-layer tool disc structure stacked vertically. Both the upper and lower tool discs have multiple rows of tool positions arranged in the second direction along the first direction, shortening the spacing between the tool positions and increasing the spatial density of the tool positions. Through the above configuration, the drive of the upper and lower tool discs can be independently controlled, increasing the tool magazine capacity and adapting to the needs of multiple tool changes for complex parts.

The utility model relates to the technical field of the production equipment of the rubber covered wire lamp, and particularly relates to a rubber covered wire cutting device, which comprises a main support, a lifting cylinder is installed at the upper end of the main support, the lifting cylinder is downwardly driven to connect a lifting seat, an upper cutter head is installed on the lifting seat, a workbench plate is installed on the main support, a lower cutter head is installed on the workbench plate, the upper cutter head corresponds to the lower cutter head, the upper cutter head is movably located above the workbench plate, the upper cutter head and the lower cutter head are respectively provided with horizontally arranged blades, and the upper cutter head is provided with an axially arranged blade, the utility model cuts off the plastic part of the rubber covered wire horizontally through the horizontally arranged blade, cuts open the plastic part of the rubber covered wire along the axis through the axially arranged blade of the upper cutter head, thereby realizing the effect of cutting the rubber covered wire, not compressing the plastic part of the rubber covered wire, keeping the overall aesthetic property, and being capable of adjusting the distance between the cut lines, thereby expanding the change effect of the lamp beads welded by the rubber covered wire.

This utility model discloses an electrolytic cell, including a side plate and a bottom plate. The side plate and the bottom plate are connected to form a cell body. The bottom plate is provided with several V-shaped grooves, which are arranged in parallel with each other. The V-shaped grooves extend along the length of the cell body. The V-shaped grooves at opposite ends of the bottom plate are connected to the side plate. An anode mud cone is provided at one opposite end of the bottom plate. The V-shaped grooves are all connected to the top of the anode mud cone. Under the condition of maintaining a constant width of the cell body, compared with the traditional single V-shaped bottom structure, this design can make the anode mud directionally accumulate inside the V-shaped grooves by arranging multiple V-shaped grooves in parallel along the horizontal direction at the bottom of the cell body. At the same time, by using the included angle (i.e., friction angle) parameter of the V-shaped grooves, the distance between the electrode plate and the bottom of the cell body can be effectively shortened, thereby achieving effective control of the overall height of the electrolytic cell, inhibiting the discharge of the electrolyte body along the bottom of the cell body, promoting uniform flow of the electrolyte between the electrode plates, and reducing the occurrence of electrolyte short circuits.

The utility model relates to foamed plastic production technical field discloses a kind of collecting devices after foam forming machine demoulding, including machine body and hopper, the inside rotation connection of machine body has cylinder, the outside transmission connection of cylinder has conveyer belt, the outside fixed mounting of machine body has motor, the output end of cylinder is fixedly connected in motor, the outside fixed connection of conveyer belt has limit block, the number of limit block is several, and several limit block are divided into two groups, the inside fixed mounting of one limit block has pneumatic cylinder, the output end fixed connection of pneumatic cylinder has push plate.The utility model has following advantages and effects: the device can simultaneously collect multiple foams, and can classify and collect multiple foams, foam has stability outside conveyer belt, when multiple foams are taken out, the rotation of conveyer belt makes foam can be conveyed to next processing point.

The application provides a multi-channel trench MOS device and a manufacturing method thereof. The multi-channel trench MOS device comprises a substrate, an epitaxial layer arranged on the substrate, and a plurality of first device units and a plurality of second device units formed in the epitaxial layer, wherein the first device units and the second device units are arranged alternately, each of the first device units comprises one shielding area and four trench gates surrounding the shielding area, and a source area is formed in the trench gate; each of the second device units comprises one trench gate and four shielding areas surrounding the trench gate, and a source area is formed in the trench gate. The first device units and the second device units are arranged alternately, so that the shielding areas and the trench gates are arranged alternately in a first cross section along a first direction, thereby shortening the distance between the shielding areas, increasing the surge capacity of the device, and improving the voltage resistance and reliability of the device.

The utility model discloses an electroplating production line intelligent air draft device which comprises an electroplating bath, a sealing cover is arranged at the top of the electroplating bath, an air draft mechanism is arranged at the top of the sealing cover, a plurality of first fixing plates are fixedly connected to the outer wall of one side of the electroplating bath, and L-shaped mounting blocks are fixedly connected among the first fixing plates. The bottom of the L-shaped mounting block is rotatably connected with a hydraulic rod, the top end of the hydraulic rod is fixedly connected with a rotating column, the top of the L-shaped mounting block is rotatably connected with a rotating rod, and one side of the rotating rod is fixedly connected with a connecting plate. According to the device, the rotating column moves upwards under the driving of the hydraulic rod, so that the rotating column moves in the sliding groove, the rotating rod is driven to rotate under the connecting action of the connecting plate, the second fixing plate is driven to rotate downwards, and the sealing cover covers the electroplating bath; and meanwhile, the air draft mechanism is arranged above the electroplating bath, so that the hoisting step is omitted, and convenience and rapidness are achieved.

The utility model relates to the technical field of liquid tumor suction, and discloses a liquid tumor suction device which comprises a negative pressure pump, a filter assembly and a suction head, the negative pressure pump is communicated with the suction head through the filter assembly, and one end, close to the filter assembly, of the suction head is fixedly connected with a corrugated pipe. The end, close to the filtering assembly, of the corrugated pipe is fixedly connected with a second connecting pipe. According to the device for sucking the liquid tumor, when the liquid tumor is pumped, tissues in the liquid tumor are filtered and separated through the filtering main body on the filtering assembly, finally, the clean tumor is reserved in the storage bottle, the liquid tumor does not need to be filtered for the second time due to the arrangement of the filtering device, the operation process is simplified, and the working efficiency is improved. Meanwhile, filtering and pumping are achieved at the same time, the extra pollution risk is avoided when the liquid tumor is filtered, and the integrity and safety of the liquid tumor sample are kept.

The utility model provides an alginic acid preparation device which comprises a bottom plate, bearing rods are fixedly installed on the periphery of the top of the bottom plate, a top plate is fixedly installed among the top ends of the four bearing rods, bearing plates are fixedly installed on the two sides of the top of the bottom plate, and a collecting barrel is jointly installed between the tops of the two bearing plates. Compared with the prior art, the filter pressing device disclosed by the utility model has the following beneficial effects that the distance between the bottom of the filter pressing barrel and the bottom of the filter barrel is shortened while the filter pressing barrel moves downwards to the interior of the filter barrel, so that the filter pressing efficiency is improved; when the second filter plate at the bottom of the filter pressing barrel and the first filter plate at the bottom of the filter pressing barrel are used for carrying out up-down filter pressing on alginic acid preparation raw materials, redundant filtrate can be discharged through filter holes in the second filter plate at the top, the filter pressing area is increased, the filtering efficiency of an alginic acid solution is improved through two-way filter pressing, and the production efficiency of the alginic acid solution is effectively improved.

The utility model discloses a protective touch panel, and relates to the technical field of touch panels. The touch screen comprises an assembly box, a check curtain, a touch panel, guide rails, a first rotating shaft and a supporting chain, the touch panel is arranged in the assembly box, the guide rails are arranged on the inner walls of the two sides of the assembly box, the first rotating shaft and a second rotating shaft are arranged in the upper end of the assembly box, and the supporting chain is wound on the outer wall of the first rotating shaft. The check curtain is located on the front side of the supporting chain, the lower end of the check curtain is connected with the lower end of the supporting chain, the supporting chain comprises chain blocks, assembling holes and shaft blocks, the assembling holes and the shaft blocks are located at the two ends of the chain blocks, clamping grooves are formed in the front ends of the chain blocks, and clamping blocks with one ends attached to the inner walls of the clamping grooves after the supporting chain is unfolded are arranged at the front ends of the chain blocks. According to the utility model, the rolling type check curtain which takes the supporting chain as a rigid framework is arranged, so that the problems that the turnover longitudinal opening and closing type protective cover occupies space, interference is easily caused during use, and the convenience and efficiency of operation are influenced are solved.

The present application relates to material crushing technical field, specifically disclose a kind of roller press with side baffle wear detection function, including roller, support device, inner side plate, outer side plate;Two ends of roller are inserted into two support devices, and working area is provided between two rollers;Inner side plate is arranged on outer side plate, and inner side plate is located between two rollers.The side detection module can be electromagnetic ultrasonic testing sensor, electromagnetic ultrasonic testing sensor is arranged in side detector mounting groove, and the wall thickness of multiple points of wear-resistant side plate can be measured by multiple electromagnetic ultrasonic testing sensors, the wear of wear-resistant side plate is judged according to the measured data, if wear exceeds set value, wear-resistant side plate can be moved to the side close to the outer wall of roller by side detection feeding unit, the distance between wear-resistant side plate and roller outer wall is shortened, and the side edge prone to wear can be compensated according to wear condition, to prolong the service life of inner side plate.

The invention discloses a new energy battery extrusion test device, and relates to the technical field of battery extrusion test devices. Comprising an extrusion mechanism and a carrying mechanism, the carrying mechanism is used for carrying a to-be-tested battery, and the extrusion mechanism is located above a conveying path of the carrying mechanism. During detection, loading and unloading can be carried out on the other carrying platform, the carrying frame can still keep a moving state when an extrusion test is not finished, at the moment, the carrying frame drives the other carrying platform to move towards a test station, and the carrying platform in the test state is fixed due to extrusion and keeps an original position; the platform deck of the test station can be moved out of the test station based on the elastic force of the annular elastic connection air bag, and meanwhile, under the conveying cooperation of the carrying frame, the other platform deck is conveyed to the test position for testing, so that the pre-conveying effect is achieved; according to the mode, the loading and unloading time and the extrusion test time are greatly saved, the test period is shortened, and the efficiency is improved.

The utility model relates to a quick mould changing mechanism for mould moving of a foam forming machine, which comprises a mould moving assembly, the mould moving assembly comprises a mould moving seat and a mould mounting frame for mounting a mould assembly, the mould mounting frame is connected with the mould moving seat through a detachable structure, and the detachable structure comprises a plurality of lock hooks and mounting grooves which are correspondingly arranged on the mould mounting frame and the mould moving seat. The lock hooks penetrate into the mounting grooves to connect the mold mounting frame and the mold moving seat, the interiors of the mold mounting frame and the mold moving seat are both of hollow structures, the mold mounting frame and the mold moving seat are both provided with air inlet pipes, water inlet pipes and water outlet pipes which are correspondingly arranged, molds and pipelines are integrated through the modular mold mounting frame, and the mold changing process of integral hoisting and one-key locking is achieved.

This application relates to a fixing structure for an electric vehicle air switch and an electric vehicle, belonging to the field of electric vehicles. The fixing structure includes a seat, an air switch component, and an adapter bracket. The bottom wall of the seat has mounting holes and a snap-fit ​​assembly, with the snap-fit ​​assembly spaced apart from the mounting holes. The adapter bracket includes a first bracket and a second bracket, connected at an angle. The first bracket is detachably connected to the snap-fit ​​assembly, and the second bracket is opposite to the mounting holes. The air switch component is detachably connected to the second bracket and inserted into the mounting holes. The fixing structure for an electric vehicle air switch provided by this application solves the technical problems of high installation cost and poor installation accuracy of air switches in the prior art.

The folding assembly comprises at least two supporting assemblies, each supporting assembly comprises a first rod body, a second rod body and a third rod body, and the second rod bodies and the third rod bodies are arranged on the two sides of the first rod bodies respectively and rotationally connected with the first rod bodies; and the connecting assembly is rotationally connected with the two supporting assemblies. The second rod body and the third rod body can rotate to be parallel to the first rod body after being folded, and the two supporting assemblies can rotate relative to the connecting assembly to form a folding structure. The folding tent further comprises a ceiling assembly, the ceiling assembly is connected with the folding assembly through a third connecting piece, a connecting groove is formed in the third connecting piece, and the connecting groove is connected with the connecting assembly in a limiting mode. Compared with the prior art, the utility model has the advantages of simple structure, high folding degree, small occupied space after folding, convenience in transportation and storage, and convenience in unfolding and installation.

The utility model belongs to the field of disconnecting switches, and particularly relates to a transmission mechanism and a disconnecting switch, comprising a transmission assembly, the transmission assembly is connected between a lower connecting rod of an operating mechanism and a first main shaft and a second main shaft of a switch body, and the transmission assembly is configured to transmit the driving force of the operating mechanism to the first main shaft and the second main shaft of the switch body. The transmission assembly comprises a driving gear, an upper transmission gear, a lower transmission gear and a connecting rod, the driving gear is rotationally arranged on a mechanism frame of the operating mechanism and is in linkage fit with the lower connecting rod, the upper transmission gear and the lower transmission gear are arranged on a first main shaft and a second main shaft of the switch body in a linkage mode respectively, and the connecting rod is connected between the upper transmission gear and the lower transmission gear; the driving gear is meshed with the upper transmission gear; the transmission mechanism adopts a gear transmission structure design, so that the distance between the transmission point of the operating mechanism and the first main shaft of the switch body is effectively shortened, and the design requirement of miniaturization of the isolating switch can be met.

The utility model relates to be applied to cutting device field's a kind of cutting device for silica gel seal ring production, including equipment base, the upper end left side of equipment base is fixedly connected with vertical stand, the upper end right side of equipment base is fixedly connected with sleeve material horizontal shaft, the right end of vertical stand is installed with object top frame, the right end of vertical stand is fixedly connected with first electric guide rail, the output of first electric guide rail is connected with second electric guide rail, the output of second electric guide rail is connected with cutting assembly, and cutting assembly includes equipment frame, and the left and right two inner walls of equipment frame are rotatably connected with cam horizontal shaft, in above-mentioned silica gel seal ring production cutting device, the present scheme utilizes and the motor of the cam horizontal shaft circumscribed drives its rotation, cooperates with the interaction of horizontal shift partition block and cam horizontal shaft, the spacing between multiple cutting blades can be flexibly adjusted, to meet the cutting demand of different width finished product ring piece, significantly improve the application range and production flexibility of device.

A speed measuring robot, including mechanical part and circuit part, the mechanical part includes: 1 infrared laser, special-shaped polarization beam splitter prism, first 1 / 2 wave plate, second 1 / 2 wave plate, first polarization beam splitter prism, second polarization beam splitter prism, 1 photoelectric switch reflection plate, first convex lens, second convex lens, first diaphragm, second diaphragm, first filter, second filter, first photoelectric sensor and second photoelectric sensor;The circuit part includes: ESP8266 chip, 5V to ± 5V module, 2 IV amplification modules and 2 photoelectric sensors.

The utility model relates to the technical field of waste recycling, and discloses a waste household appliance disassembling and recycling device which comprises a base, a back plate is fixedly installed at the top of the base, and limiting mechanisms are arranged on the surface of the base and the surface of the back plate. The limiting mechanism comprises a moving groove formed in the top of the base. The driving plate moves backwards, so that the multiple sets of moving plates are synchronously pushed, the front ends of the moving plates can move in the moving grooves, the rear ends of the moving plates can slide along the guide grooves, the moving plates are gradually inclined, and compared with a traditional device, the waste household appliance disassembling device has the advantages that when the waste household appliance disassembling device is used for disassembling waste household appliances, the waste household appliance disassembling efficiency is improved, and the waste household appliance disassembling efficiency is improved. The inclination angle of the waste household appliance is adjusted through the movable plate, workers can conveniently observe the internal structure of the waste household appliance, the working fatigue is relieved, meanwhile, the view field range of the workers is good when the workers disassemble the waste household appliance, and the integrity of parts after the waste household appliance is disassembled can be guaranteed.

The utility model relates to the technical field of brake air chambers, in particular to a stable brake air chamber which comprises a front air chamber and a rear air chamber, a brake diaphragm is fixedly installed in the rear air chamber, a connecting disc is fixedly installed on the brake diaphragm, a limiting cylinder is horizontally and fixedly installed at one end of the front air chamber, and the limiting cylinder is fixedly installed at the other end of the front air chamber. A limiting cylinder is arranged in the front air chamber, a push rod is horizontally and slidably inserted in the limiting cylinder, moving holes are symmetrically formed in one end of the front air chamber, moving rods are horizontally and slidably mounted in the two moving holes, moving rings are fixedly mounted at one ends of the two moving rods, the limiting cylinder is sleeved with an energy storage spring, and an adjusting assembly is arranged on the front air chamber. When the energy storage spring deforms after being used for a long time, the adjusting assembly drives the two moving rods to move, the distance between the moving ring and the connecting disc is shortened, and therefore the energy storage spring is compressed, the energy storage spring can keep original elastic potential energy, the energy storage spring does not need to be replaced, and normal use of a brake chamber is guaranteed.