97results about How to "Simple and reliable structure" patented technology

The sealing mechanism comprises a machine body and a powder box assembly placed on the machine body, the powder box assembly comprises a powder storage box and a guide pipe arranged at the bottom of the powder storage box, a powder outlet is formed in the lower portion of the guide pipe, and a powder inlet is formed in the upper portion of the guide pipe; a powder outlet screw rod is arranged in the guide pipe, and the powder outlet screw rod rotates and extrudes powder out of a powder outlet of the guide pipe; in addition, a sealing bottom cover arranged at the bottom of the guide pipe is further included, the sealing bottom cover is provided with a powder outlet and a powder falling opening, and a sealing piece is movably arranged at the bottom of the sealing bottom cover. And a first transmission part for driving the powder outlet screw rod to rotate is also arranged on the sealing bottom cover in a penetrating manner. Therefore, by adopting the lower plane type sealing, the opening angle between the powder outlet and the powder falling opening is 180 degrees, so that the powder falling is smoother, and the powder blocking phenomenon is not easy to occur; and meanwhile, the sealing performance is better, and the risk of powder leakage can be greatly reduced.

The invention discloses a high-pressure axial plunger pump friction pair oil film characteristic testing device and method, and belongs to the technical field of hydraulic elements. Comprising a motor serving as a power source, an external oil source system, a data acquisition card and an industrial personal computer, the motor is connected with a flow distribution pair testing part and a plunger pair testing part through a main shaft, in a flow distribution pair testing device, the actual pump operation condition is simulated through a flow distribution pair swash plate assembly capable of replacing different inclination angles, and the testing precision of a flow distribution pair oil film is improved; in the plunger pair testing device, a plunger pair swash plate with different inclination angles and dynamic balance balancing and a symmetrically arranged long plunger body plunger pair structure can be replaced, and the whole device is connected with a flow distribution pair testing device through a main shaft and a flow distribution piece, so that two friction pairs can be tested at the same time; the plunger pair testing device is simple and reliable in overall structure, parts are convenient to replace, and the detection cost is low.

The utility model discloses a combined type protective device, which relates to the technical field of buildings and comprises a protective part, a protective part and a protective part, the protective part comprises a cover plate for protection, the cover plate is provided with a clamping groove, and the clamping groove extends along the extending direction of the cover plate; the fixing part comprises supporting legs used for supporting and fixing, the supporting legs are connected to the clamping grooves in a clamped mode, and the supporting legs can slide in the extending direction of the clamping grooves so as to adjust the positions of the supporting legs on the cover plate; and after the relative positions of the supporting legs and the cover plate are adjusted, the supporting legs are limited and fixed through the locking parts. When holes, pile holes and the like of different sizes need to be protected, the supporting legs on the sliding clamping grooves can be directly adjusted to meet the protection installation requirements of different scenes, and the supporting legs are limited and fixed through the locking parts. Compared with the prior art, the combined type protection equipment is simple and reliable in overall structure, rapid and convenient to disassemble and assemble and high in adaptability, and the efficiency of protection work in the building construction process is remarkably improved.

The utility model relates to the technical field of vehicles, in particular to an air suspension, a vehicle chassis and a vehicle. The air suspension comprises a lifting air bag, an air bag upper support and an air bag lower support, the air bag upper support comprises a first plate body and a second plate body which are connected with each other at a preset angle, the first plate body is connected with the top of the lifting air bag, the second plate body is connected with an axle, and the air bag lower support is connected with the bottom of the lifting air bag. And the side part of the air bag lower bracket is connected with the frame. During use, when the lifting air bag is inflated or deflated, the lifting air bag drives the air bag upper support and the air bag lower support to be relatively far away from or close to each other, so that axle lifting is achieved. The first plate body and the second plate body directly exert lifting force, axle lifting is achieved without a chain and an air bag guide mechanism, the whole structure is simple and reliable, the first plate body and the second plate body which form the preset angle can bypass a plurality of structural parts, and the situation that the structural parts are disturbed and abraded in the lifting process is avoided; therefore, the structural reliability and the service life of the air suspension are improved.

The invention relates to the technical field of tin soldering, in particular to a heating core chromium iron head quick-changing mechanism which comprises a heating core, a wire harness column is inserted into one end of the heating core, a soldering iron head is inserted into the other end of the heating core, the outer surface of the heating core is sleeved with a fixing base, and the surface of the fixing base is connected with a connecting cover through a bolt. A connecting block is embedded in the face, away from the connecting cover, of the fixing base. Parts are easy to machine and manufacture, the whole mechanism is easy to assemble, the iron head is convenient to replace, the iron head can be rapidly replaced only by loosening and tightening a screw through a hexagon wrench, a clamping groove is designed in the heating core, the direction consistency during iron head replacement is guaranteed, a visual window is designed, the height uniformity during iron head replacement is guaranteed, and the iron head replacing efficiency is improved. The structure is simple and reliable, an automatic rebounding mechanism is designed at the tin wire feeding position, and it can be guaranteed that the tin wire feeding mechanism automatically resets to the original set position after a ferrochrome head is replaced every time.

A power transmission line overhanging tower ground wire double-hanging-point structure comprises an iron tower fixing frame, supporting angle steel is symmetrically arranged on the iron tower fixing frame and fixedly connected with the iron tower fixing frame through a first locking piece, and the supporting angle steel is fixedly connected with symmetrically-arranged hanging point angle steel through a second locking piece. The hanging point angle steel is connected with one end of the installation piece through a third locking piece, an installation groove is formed in the installation piece, a hanging point steel plate is arranged in the installation groove and fixedly connected with the installation piece through a fourth locking piece, and hanging holes are symmetrically formed in the hanging point steel plate. By adopting the structure, the original structure of the transmission tower is slightly changed, flexibly adjusted and refitted, and is convenient and practical; the hanging point steel plates are convenient to prefabricate, are independently manufactured according to different sizes and intervals of hanging holes, and are convenient to disassemble, assemble and select; the whole structure is simple and firm, modification, maintenance and replacement are convenient, and practicability is high.

An automatic bottling and filling structure for a shrinkage-proof medical belt comprises a support structure, symmetrically-arranged guide rollers and symmetrically-arranged connecting seats are arranged on the support structure, a plurality of guide wheels are arranged on the guide rollers, electric push rods are arranged on the connecting seats, and the output ends of the electric push rods are connected with a filling seat through a fixing plate. A plurality of hoppers and a positioning seat are arranged on the stuffing seat, a positioning groove is formed in the positioning seat, a limiting frame matched with the positioning groove in a positioning mode is arranged on the positioning groove, and the limiting frame is connected with the stuffing frame through a fixing arm. By the adoption of the structure, the material clamping structure is in positioning fit with the material plugging rod, medical belt materials are clamped through the gap between the material clamping structure and the material plugging rod, and the situation that the medical belt materials retract after being cut off every time is avoided; multiple guiding cooperation is achieved, the position of the medical belt material plugging end is limited, it is guaranteed that the plugging quality is uniform and stable, and the continuous machining effect is guaranteed; the device is stable in material plugging, uniform in force, consistent in speed, stable in machining quality, simple and firm in structure and high in practicability.

The utility model discloses a workpiece rotating device, including floor, the upper end fixed mounting of floor has the interface board, the upper end fixed mounting of interface board has the foot bolt, the upper end center fixed connection of foot bolt has the rodless cylinder, and the both sides fixed connection of rodless cylinder has the slide rail, the inside fixed of slide rail has and inserts the mouth, the upper end fixed connection of slide rail has the sliding block, and the inside fixed mounting of sliding block has the lock nail seat, the inside fixed mounting of lock nail seat has the fixed nail, the upper fixed mounting of sliding block has the receiving station, to solve the hosiery setting machine that the above -mentioned background art proposes is the equipment that is used specially for this craft, but the mechanism of setting machine mobile die carrier is the long strip shape structure, and the space is big to the longitudinal occupation, and the workpiece passes through the chain structure and drives the die carrier to move, and the chain structure is relatively complex, when the chain damage needs the maintenance, and the cost is higher, lead to the problem of hosiery production and maintenance cost increase.

The utility model provides a kind of headrest with cosmetic mirror, car seat and vehicle, it is related to the technical field of automobile parts, the headrest includes headrest body, cosmetic mirror subassembly, damping device and limiting device, and headrest body rear side is equipped with accommodating cavity;Cosmetic mirror subassembly is reversibly set in accommodating cavity by pivot, including triangular installation body and cosmetic mirror, installation body has adjacent first surface and second surface, first surface fixed cosmetic mirror, and second surface is the decorative surface consistent with the curvature of headrest rear side outer surface.Cosmetic mirror subassembly can be switched between the use state that cosmetic mirror is exposed and flush with headrest and the storage state that decorative surface is exposed and flush with headrest.The design realizes the balance of hidden storage and convenient use of cosmetic mirror, flush with headrest surface when storage, stable adhesion without space when use, solve the problem that traditional cosmetic mirror is complicated to operate and occupies space, improve practicality and aesthetic property, especially suitable for rear passenger use.

The utility model provides a self-linkage fireproof partition ventilation structure which is characterized in that slideways are arranged on the outer side of an air supplementing opening and on the two sides of the air supplementing opening; the fireproof heat insulation plate is arranged in the slide way; and one end of the bayonet pin traction assembly abuts against the heat insulation plate, and the other end of the bayonet pin traction assembly is linked with a screw head of the fire damper handle. A sliding and driving reset assembly of a fireproof partition plate is additionally arranged on the outer side of a conventional fireproof tuyere, and torque generated by self-closing of a fireproof valve at the temperature of 70 DEG C is used as traction power of a clamping pin of a fireproof heat insulation plate; in a fire disaster, when the fireproof valve is automatically closed, the screw head rotates, the steel rope is pulled, the linkage structure is pulled away from the bayonet lock, and the fireproof heat insulation plate is closed, so that the whole mechanism meets the corresponding requirements for heat insulation and integrity. The fireproof partition ventilation structure is simple and reliable in structure and principle, an existing fireproof air opening can be directly modified, the defect of the existing fireproof air opening in heat insulation performance is overcome, various site requirements of the side wall fireproof air opening are met, and the fireproof partition ventilation structure is wide in application scene and suitable for being vigorously popularized.

The invention relates to a vacuum system in a pulse power device, and provides a magnetic insulation induced voltage superposition device with axial vacuum degree consistency in order to solve the problems that an existing vacuum system cannot reach a target vacuum degree and is poor in uniformity, the magnetic insulation induced voltage superposition device comprises a cantilever supporting section, a plurality of groups of induction cavities and an isolation extension section which are coaxially connected in sequence, the vacuum cavity assemblies and the vacuum pump assemblies are arranged between the connecting ends; the vacuum cavity assembly comprises a vacuum cavity and a connecting cylinder, and the connecting cylinder is used for connecting the vacuum cavity assembly to the connecting ends in an inserted mode. A plurality of interface flanges are arranged on the outer side circumferential surface of the vacuum cavity, and a plurality of through holes are formed in the outer side circumferential surface of the connecting cylinder in the radial direction; the vacuum pump assembly comprises a plurality of molecular pumps, a vortex dry pump, a pre-pumping valve and an isolating valve, the molecular pumps are connected with the vacuum cavity through interface flanges, one end of the vortex dry pump is connected with the vacuum cavity through the pre-pumping valve, the other end of the vortex dry pump is connected with the molecular pumps through the isolating pump, and the vortex dry pump is used for controlling the molecular pumps to perform high vacuum pumping treatment.

This application relates to a photovoltaic cell conveying device, comprising: a drive unit; a conveyor belt wound around the drive unit, the conveyor belt being capable of cyclic movement under the drive of the drive unit, the conveyor belt having a negative pressure chamber, the chamber wall of which has adsorption holes connecting the negative pressure chamber to the external atmosphere; wherein, the conveyor belt is capable of undergoing recoverable deformation under the action of the drive unit to change the volume of the negative pressure chamber. In the above-mentioned photovoltaic cell conveying device, the conveyor belt cyclically moves under the drive of the drive unit to realize the conveying of the cells. Since the formation of the negative pressure environment in the negative pressure chamber relies solely on the action of the drive unit and the deformation of the conveyor belt itself, the structure of this photovoltaic cell conveying device is simple and reliable, eliminating the need for external vacuum equipment and complex connecting pipelines, thus avoiding the problems of large space occupation, high energy consumption, high noise and heat generation caused by the installation of external vacuum equipment, and significantly reducing production costs.

The application discloses an intelligent internet unmanned aerial vehicle (UAV) box and an automatic docking and locking control system thereof, and belongs to the technical field of UAV cargo hoisting. The system comprises a suspension connection unit, an intelligent cargo box unit, a positioning unit, a mechanical lock unit and an intelligent control unit. When the suspension unit and the positioning unit are magnetically connected, the intelligent control unit determines the locking or releasing mode through the number of signal contact connections; in the locking mode, a power-on timing control module supplies a first direction current to an electromagnetic adsorption module, sequentially drives a lock mechanism to close, and realizes mechanical locking; in the releasing mode, a reverse current is supplied, the lock mechanism is sequentially driven to open, and automatic unloading is realized. The system realizes full-process automation of UAV hoisting, has a high-reliability double-locking mechanism, effectively prevents aerial misrelease, is integrated into a smart internet network, and significantly improves the safety, efficiency and informatization level of hoisting operation.

The application relates to the technical field of injection molds, and particularly discloses an automobile interior part injection mold with a cooling structure, which comprises an injection machine frame and an injection unit; the injection unit is arranged on the injection machine frame; the injection unit comprises a fixed mold plate, and further comprises a demolding unit and a receiving unit; the demolding unit comprises a fixed base and a movable mold plate; the fixed base is fixedly connected to the injection machine frame; a guide rod and a cylinder one are arranged on the fixed base; the output end of the cylinder one is connected to the movable mold plate; a pulse air cooling type global cooling system is constructed; cooling air is directly output to the product forming surface through the distributed air holes on the side wall of a mold groove and the surface of a convex mold; the bottleneck of the shape following property limited by the traditional water cooling is broken; the uneven cooling of a special-shaped cavity can be realized; the product temperature field distribution is effectively balanced; and the internal stress and warping deformation during the molding are inhibited.

The invention relates to a method for stacking steel bar truss floor decks; the method comprises the following steps: S1. loading: the steel bar truss floor decks are transported to a first station by a conveying device along an X-axis direction; S2. lifting: the odd-numbered boards are lifted to a second station by a lifting device along a Y-axis direction; S3. pushing: the odd-numbered boards are pushed to a third station by a pushing device along a Z-axis direction, and after completion, the S1 operation is repeated; S4. flipping: the even-numbered boards are flipped to the previous odd-numbered boards by a flipping device; the height displacement generated after the flipping of the even-numbered boards is equal to twice the value of the turning radius of the flipping device; S5. descending: the board located at the third station descends along the Y-axis direction with the lifting device, and at this time, the position of the bottom mold frame of the top even-numbered boards is the new third station; the invention breaks through the limitation of the height of the conveying device on the stacking height, ensures that the conveying device is at the same height as the assembly line workbench, improves the stacking height and stacking efficiency, and reduces the equipment cost.

This invention provides an organic substrate preparation device and method suitable for rose cultivation, relating to the field of organic substrate preparation technology. The device includes a telescopic mechanism comprising a bidirectional mechanism and a driving mechanism. The telescopic mechanism provides not only circumferential stirring torque but also vertical mixing torque, thus ensuring thorough mixing of the organic matter in multiple directions. The bidirectional mechanism generates irregular vertical movement in response to circumferential stirring, further enhancing the vertical mixing of the organic matter and achieving multi-dimensional composite stirring. This significantly improves mixing uniformity and fermentation efficiency. The invention utilizes a unique spatial linkage (side rod, inner / outer ball sleeve) and flexible transmission (unidirectional mechanism) design to intelligently decompose the unidirectional rotation of the driving shaft into a superposition of circumferential revolution and axial reciprocating motion of the stirring components (upper / lower stirring sleeves).

This application relates to the field of ship control, providing a hovercraft control method and hovercraft, including: in a static power generation mode, disengaging the clutch of the hovering fan, energizing the generator, and having the gas turbine drive the generator to generate electricity through a reducer, driving the propulsion fan to rotate with a reverse pitch, generating a reverse airflow to cool the generator, reducer, and gas turbine; when a sudden load reduction is detected in the generator, increasing the propulsion fan pitch through a pitch controller, increasing the load torque generated by the propulsion fan to compensate for the sudden load reduction and preventing the gas turbine from overspeeding; the hovering fan stops rotating, causing the hovercraft to contract, and the hovercraft contacts the ground through a fixed shovel, the unidirectional resistance generated by the fixed shovel balances the pull generated by the increased propulsion fan pitch, maintaining the stability of the entire vessel. By integrating the generator into the hovercraft's propulsion system and utilizing the adjustable pitch characteristic of the propulsion fan to cope with sudden load reduction, the integration of emergency power and power mobility are improved.

The invention relates to the field of agricultural product processing equipment, in particular to a phase adjusting structure and an automatic adjusting tea frying machine based on the phase adjusting structure, the phase adjusting structure comprises a driving part and a transmission assembly, the transmission assembly comprises a transmission shaft, a connecting rod group and a swing rod, and the phase adjusting structure further comprises an eccentric wheel, the screw rod and screw sleeve adjusting mechanism is used for adjusting the distance between the fulcrum of the swing rod and the eccentric wheel, so that the initial angle and the swing amplitude of the frying plate are adjusted. The machine further comprises a rack, a controller and a frying plate; the synchronous belt transmission part is connected with the movable part; and the manual driving part and the automatic driving part are connected with the synchronous belt transmission part. The whole rigidity is effectively improved, vibration in the operation process is restrained, the repeated precision of the motion trail of the frying plate is guaranteed, the service life of the structure is prolonged, complexity and control redundancy of the mechanical structure are avoided, automatic adjustment is achieved, the machining efficiency is higher, and safety is higher.

The application provides an ultrasonic wall power supply and echo modulation communication transformer built-in partial discharge monitoring system, which comprises an external device and an internal device. The external device comprises a first transducer for generating frequency multiplication ultrasonic waves synchronized with the phase of power grid power frequency voltage and emitting into the oil tank. The internal device comprises a second transducer and a signal processing unit; the signal processing unit demodulates the phase of the power grid power frequency voltage from the frequency multiplication ultrasonic waves, extracts characteristic parameters from the partial discharge signal and labels the phase angle, and further changes the load impedance of the second transducer by controlling the switching element to modulate the reflected echo, and sends the data through the modulated reflected echo. The external device demodulates the characteristic parameters and the phase angle from the reflected echo. The application utilizes ultrasonic waves to penetrate the metal tank wall, simultaneously realizes wireless power supply, power frequency phase synchronization and low-power echo modulation communication, does not need a battery or a lead, and realizes the full life cycle maintenance-free online monitoring of the transformer internal partial discharge.

A lock cylinder capable of timely stopping a motor after electric unlocking and locking operation is completed comprises a lock cylinder body and a control box, the lock cylinder body comprises a lock cylinder shifting wheel and a lock cylinder rotating shaft, one end of the lock cylinder rotating shaft is in transmission fit with the lock cylinder shifting wheel, and the other end of the lock cylinder rotating shaft extends into the control box. An unlocking rotating shaft in transmission connection with the lock cylinder rotating shaft and an electric driving device used for driving the unlocking rotating shaft are arranged in the control box, the electric driving device comprises a main board, a motor, a gear transmission unit, a grating disc and a laser sensor, and the gear transmission unit is connected between the motor and the unlocking rotating shaft; the grating disc is connected to the gear transmission unit and can rotate or stop along with the gear transmission unit, the laser sensor is used for detecting a rotation or stop signal of the grating disc and transmitting the detection signal to the mainboard, and when the laser sensor detects the stop signal of the grating disc, the mainboard immediately controls the motor to stop working. The motor can be prevented from continuously working in a locked-rotor state, and the service life of the motor and the service life of a battery are not affected.

The application belongs to the technical field of lighting devices, and provides an adjustable swimming pool lamp, which comprises a lamp holder, an extension rod, a power supply box and a lamp body. The lamp holder is provided with a mounting plate, and the bottom of the mounting plate is fixedly connected with a hinged seat provided with a locking mechanism. One end of the extension rod is hingedly fixed with the lamp holder through the hinged seat. The power supply box is fixedly connected with the other end of the extension rod along the horizontal direction. The lamp body is arranged on the side of the power supply box away from the extension rod and is fixedly connected with the power supply box. The inner cavity of the lamp body is provided with a light emitting part on one side and a light reflecting part on the other side. The application optimizes the structural form and light source layout of the lamp, and combines with the adjustment and reflection cooperative structure design, so that the upward emitted top light is uniformly diffused after reflection, the problems of glare and uneven illumination are effectively avoided, the lighting comfort of the swimming pool area is significantly improved, the light angle and area can be flexibly adjusted through the adjustment mechanism, the lighting needs of different swimming pool sizes and use scenes are adapted, and the defect that the existing swimming pool lamps have fixed illumination area is solved.

The invention provides a power distribution box, and relates to the technical field of electrical equipment, the power distribution box comprises a box body and a wire arrangement structure, a stand column is arranged in the box body, a back plate is arranged on the stand column, the wire arrangement structure comprises a fixed groove plate and a movable groove plate, and the movable groove plate is movably arranged in a wiring groove of the fixed groove plate. The movable groove plate can move up and down relative to the fixed groove plate and move in the height direction of a second side plate of the fixed groove plate, first side plates on the two sides of the movable groove plate are rotatably and elastically connected to a first bottom plate of the movable groove plate, and the opposite sides of the two first side plates are each provided with at least one pair of elastic wire clamp sets. The elastic wire clamp group comprises a fixed elastic clamping ring and a movable elastic clamping ring which are arranged in a staggered mode in the vertical direction, and the movable elastic clamping ring is elastically connected with the first side plate. According to the wire arrangement structure, the wire harness can be kept tightened and regular when the distribution box is in a normal operation state, and the wire harness constraint can be released during maintenance or transformation, so that the overall maintainability and operation reliability of the distribution box are improved.

The utility model relates to a kind of shaking amount control mechanism for vehicle interior trim, it is characterized in that, it includes: shell;Connecting rod, connecting rod is installed in the accommodating cavity of shell and can move, connecting rod has connecting rod part, connecting rod part is more from accommodating cavity in extreme position of extension than in initial position, connecting rod part is equipped with recess, recess is open to shell, first elastic element and damping block are equipped in recess, first elastic element is supported in recess with its one end and is supported in damping block with its other end, in the mounting state of first shell part and second shell part, first elastic element is in compression state, and first elastic element is based on its return force and press damping block to shell on. Technical effects include: the combination of recess, elastic element and damping block is used, the anti-shaking design of connecting rod in moving direction is realized.The utility model is also related to a kind of position adjusting device for vehicle interior trim.

A hydraulic transmission relates to the technical field of transmissions, and solves the technical deficiencies in the current transmission of kinetic energy output by a power source to a wheel drive shaft. The hydraulic transmission comprises a sealed housing composed of a housing and a housing cover, wherein a power wheel is arranged in the sealed housing, and the power wheel is fixedly connected to a power output shaft, and the power wheel comprises at least two or more sub-impellers of different diameters, and each sub-impeller is coaxially fixed; a liquid inlet interface and a liquid outlet interface are arranged on the housing, and a nozzle switching mechanism is arranged between the liquid inlet interface and each sub-impeller. The nozzle switching mechanism is used to realize the hydraulic action on the sub-impellers of different diameters, so as to realize speed change. The power source and the oil pump according to the present invention can be arranged at different positions of the vehicle, and the design and installation are flexible. Compared with the traditional transmission shaft connection, the hydraulic drive has smaller mechanical friction resistance and smaller energy loss. The hydraulic pressure itself has a certain buffering effect, and no clutch device is required, which saves costs; no complex gear set structure is required, and the structure is simple and reliable.

The present invention discloses a nonlinear metamaterial vibration isolator with quasi-zero stiffness, which belongs to the technical field of metamaterials and vibration reduction and noise reduction. The vibration isolator is composed of structural parts and vibration isolation components. The vibration isolation components play the role of vibration isolation and buffering. A polymer material with a certain load-bearing capacity is used. The interior of the vibration isolation component has a metamaterial structure formed by periodic arrangement of metamaterial unit cells. The geometric shape of the metamaterial unit cell is similar to a half hexagon. The metamaterial structure is obtained by periodic arrays of metamaterial unit cells in the vertical and horizontal directions. The structural parts are made of metal materials, and the structural parts and the vibration isolation components are connected in a composite manner of mechanical locking and bonding. The present invention can realize the quasi-zero stiffness nonlinear characteristics of the vibration isolator, greatly reduce the natural frequency of the vibration isolator while ensuring the stability of the system, and effectively improve the vibration isolation effect.

The utility model belongs to the technical field of keyboards, and particularly relates to a mechanical keyboard which comprises a soft elastic feeling adjusting assembly which comprises a PCB arranged in an inner containing cavity, a base plate, a soft cushion, an adjusting plate and a rotary knob, the position of the adjusting plate relative to the base plate is controlled by rotating the rotary knob, and positioning flanges are matched with a first matching groove, a second matching groove and a third matching groove respectively; the cushion plate can move towards or away from the soft cushion, so that the size of the adjusting space is adjusted, the compression amount of the soft cushion is changed, different pressing soft and elastic feelings are provided for the key module, the operation is simple and convenient, the structure is simple and reliable, and the manufacturing cost is low.

This invention provides a mass production machining device for door pillars, belonging to the field of door pillar mass production machining technology. It includes a base, with mounting brackets mounted on the top of the base. The mounting brackets have equidistant first limiting grooves and equidistant mounting grooves on their tops. Four mounting brackets are equidistantly arranged on the base, and one mounting bracket located on one side edge of the base has equidistant first limiting blocks on its top. This invention, by setting up an auxiliary positioning mechanism and a limiting and fixing mechanism, allows the eight first sliding grooves to be quickly positioned to the machining position on the top of the base in one go, avoiding multiple alignment adjustments and improving positioning efficiency. Furthermore, the limiting and fixing mechanism further limits and fixes the transported profile body, ensuring that the profile body remains stable, does not shift, and does not shake during processing, ensuring consistent processing benchmarks.