19results about How to "Avoid dents" patented technology

The application relates to a bag-in-bag-out filtering device, which relates to the technical field of biological safety and comprises the following: a ventilation duct is arranged in a box body; an air inlet and an air outlet are arranged on the box body and communicate with the ventilation duct; one or more filters are movably arranged in the ventilation duct; an opening is arranged on the box body and communicates with the ventilation duct; a sealing door is detachably arranged on the opening; a detection piece is arranged on one side of the box body close to the sealing door; and a frame body is arranged in the box body and abuts against the filter; the box body comprises a main body, an air inlet shell, an air outlet shell and a cover plate, and the ventilation duct is formed between the main body and the cover plate; the frame body and the main body are integrally bent and formed, one end of the frame body is embedded in the main body, and the other end of the frame body is bent and connected with the end of the main body. Compared with a traditional filtering box, the filtering device is integrally formed, welding leakage is avoided, the filtering device is not easy to deform, good sealing performance and pressure bearing strength are maintained, and the cost is reduced.

The utility model relates to PE film processing technical field, concretely is a kind of PE winding film cutting device, including machine plate, the side surface fixed mounting of machine plate has roll stock frame, feeding frame and shearing bin, by setting control distance screw rod, control distance plate, spring, shearing frame, cutting knife, utilize the synergies of these structures, control distance screw rod cooperation control distance slide bar, make control distance plate can accurate lift, to control the cutting depth of cutting knife, satisfy half cut or complete cut two kinds of needs, pressing plate provides pressure by spring, ensure the flatness of cutting edge, by the sliding connection of pressing plate side surface and shearing frame inner side, the movement trajectory of cutting knife is restricted, guarantee the perpendicularity of cutting process, when cutting knife cuts into film, the fitting structure of control distance plate and cutting knife seat provides additional rigid support, reduce the deformation risk of cutting knife, prolong tool life, realize the control of PE winding film cutting depth, stability and precision, improve the efficiency and quality of packaging operation.

The utility model discloses a steel lining Teflon storage tank with a leakproof function, which relates to the technical field of steel lining Teflon storage tanks and comprises a storage tank body, a top cover is mounted at the top of the storage tank body, a leakproof exhaust component is mounted at the top of the top cover, and the leakproof exhaust component comprises a pressure relief opening, a mounting pipe, an electromagnetic valve and a pressure gauge. The pressure relief opening is formed in the top of the top cover in a penetrating mode, an installation pipe is installed at the top of the pressure relief opening in a threaded sealing mode, the electromagnetic valve is installed at the top end of the installation pipe, and the pressure gauge is installed at the top of the top cover in a penetrating mode and electrically connected with the electromagnetic valve. When internal pressure gathers, the pressure gauge can detect and display the internal pressure and control the electromagnetic valve to be opened at the same time, so that the pressure gathered in the storage tank body passes through the pressure relief opening, the mounting pipe and the electromagnetic valve and is finally discharged through the pressure relief pipe, and leakage of the storage tank body caused by internal pressure gathering is avoided.

This utility model relates to the field of plate pressing machine technology, and in particular to a detachable cleaning structure for a plate pressing machine, comprising: a plate pressing machine body, an installation component, and a cleaning component; the plate pressing machine body is connected to a main pressing plate and a buffer plate; the installation component is connected to the plate pressing machine body; the installation component includes an installation frame, installation block a, and a support member; the two ends of the installation frame are respectively connected to the installation block a, and the installation block a is connected to both sides of the plate pressing machine body and is detachably connected; and the cleaning component is connected to the installation component and connected to the plate pressing machine body; the cleaning component includes a fixing plate, connector a, and connector b; the fixing plate and the support member are connected and detachably connected, and connector a and connector b are connected to the fixing plate. This utility model avoids dents or impurities from being embedded on the surface of the pressed plate, conveniently improves the pressing quality of the plate, reduces the number of defective products in the pressing process, reduces the pressing cost, and conveniently improves the use structure of the plate pressing machine.

The utility model discloses a low -noise motorcycle engine cylinder cover belongs to cylinder cover technical field, it includes cylinder cover body, the inside wall of cylinder cover body is equipped with the noise reduction structure, the inside wall center place of cylinder cover body is equipped with cooling structure, the inside center upper place of cylinder cover body is equipped with support structure, the cooling structure includes cavity, the inside wall center place of cylinder cover body is equipped with the cavity, the inside center upper place of cavity is equipped with cooling pipe, in addition, the utility model discloses, can be targeted to attenuate valve knock, gas turbulence etc. high frequency noise, and the noise reduction amount reaches 10 15dB, solve the problem that high frequency noise penetrability is strong, simultaneously, absorb the vibration energy that cylinder body resonance and component low frequency impact produced, and the barrier efficiency improves 20 30%, solved the defect that low frequency noise suppression is insufficient, and, reduce gas leakage noise 8 12dB, also through the rigid vibration transmission of elastic contact reduction cylinder cover and cylinder, avoid resonance and produce additional noise.

The application provides a chuck assembly and a measuring device. The chuck assembly comprises a chuck, a plurality of support columns for supporting a wafer are arranged on one side of the chuck facing the wafer, and a plurality of air nozzles capable of forming an air cushion are arranged on the side of the chuck. The plurality of support columns form a plurality of concentric support rings with the rotation center of the chuck as the center. The plurality of air nozzles form a plurality of concentric air nozzle rings with the rotation center as the center. At least one support ring is arranged between any two adjacent air nozzle rings. In the embodiment of the application, the chuck assembly can effectively improve the anti-interference ability, the test stability, and the measurement accuracy.

This invention discloses a low-floor all-aluminum vehicle chassis, consisting of a front axle, a central battery compartment, and a rear axle module connected sequentially. The central section is low, while the sides are higher, with a height difference of 240–250 mm. The load-bearing frame of the central battery compartment connects the crossbeams and longitudinal beams via mortise and tenon joints, forming a grid-like inner frame and three battery compartments, upon which the floor is mounted. The front and rear axle modules are connected to the frame and crossbeams via mortise and tenon joints, supplemented by mechanical reinforcement. This invention employs a three-segment all-aluminum height-difference structure, achieving lightweight, high rigidity, and high battery capacity synergistically for a 6-meter-class Class I low-floor minibus. The grid-like inner frame formed by the central grid-like mortise and tenon joints enhances rigidity and optimizes force transmission, while also forming three battery compartments, increasing battery capacity from 71 kWh to 105 kWh, significantly extending range. The all-aluminum design reduces weight by over 1 / 3, lowering energy consumption. The modular design improves assembly precision and efficiency, overcoming the technical bottleneck of adapting all-aluminum structures to Class I low-floor designs, providing an accessible, low-carbon, and highly reliable microbus chassis solution.

This utility model discloses a novel hydraulic damper. Key technical features include a housing with an oil cavity inside. A rotating shaft is rotatably connected to the housing, extending into the oil cavity and symmetrically arranged with blades. Each blade has a notch. A flexible paddle covering the notch is positioned on one side of the blade. A limiting element is positioned on the side of the flexible paddle away from the notch. When the flexible paddle deforms away from the notch, an oil passage gap is formed between it and the notch, and it abuts against the limiting element. This utility model achieves dynamic adjustment of the damping force by allowing the flexible paddle to deform with changes in hydraulic oil pressure, adapting to different speeds and loads. Furthermore, by setting a limiting element to restrict its maximum bending angle, it avoids plastic damage or breakage due to excessive deformation, significantly extending the service life of the damper.

The present application relates to a kind of end point clamping mechanism and straightening device for correcting after aluminum alloy profile extrusion molding, belong to aluminum alloy profile processing equipment field.For the problem that existing inner expansion type clamping mechanism is easy to slip when traction straightening, the present application sets up split type anti-slip self-locking structure outside movable block: support block is connected with movable block by inclined surface sliding, and support block clamping surface is provided with anti-slip structure.Support block is abutted to profile inner wall after initial expansion;When traction force, the large friction force of support block and profile drives it to slide along inclined surface and further expands outward, and forms self-locking clamping that is more and more tight.Moreover, universal transmission joint can be arranged in driving shaft, so that clamping mechanism is self-adaptive to the direction of special-shaped end face.The present application realizes the self-locking mechanism that clamping force is strengthened with pulling force during traction, completely solves the problem of slipping, and can adapt to the change of end face orientation, applicable to the efficient straightening of multi-cavity thin-walled aluminum alloy profile.

This invention provides a sterile pipe-connecting machine, including a base plate with two slide rails mounted on it. A first clamping unit and a second clamping unit are mounted on the slide rails. A rotating unit is mounted on the first clamping unit. A thermal cutting unit, an outward expansion unit, and a clamping unit are mounted on the base plate. This invention uses a driving component C to drive a rotating rod to rotate, causing an arc-shaped pressure plate to rotate outward away from the pipe's flared end. This drives the first and second clamping units to move inward, bringing the flared ends of the two pipes into contact. Simultaneously, it drives the two unfolded arc-shaped pressure plates to move outward. Then, the driving component C drives the rotating rod to rotate, causing the arc-shaped pressure plates to rotate inward to a closed state. The inward movement of the two arc-shaped pressure plates compresses the flared ends of the two pipes, fusing them together to achieve the pipe-connecting process. The large contact area at the pipe connection point results in a good connection effect and high connection strength.

This utility model relates to the field of battery pack technology, and discloses a front panel assembly and a battery pack. The front panel assembly includes: a panel body, on which at least one mounting cavity and a connecting post are provided, the connecting post extending away from the panel body and forming a bearing surface; a baffle, which can be opened and closed to cover the mounting cavity and has a locking hole aligned with the connecting post, the locking hole penetrating the baffle, and having a limiting surface flush with the bearing surface within the locking hole; and a locking member, which is detachably inserted into the locking hole and connected to the connecting post, and the head of the locking member simultaneously abutting against both the bearing surface and the limiting surface. The advantages of this utility model are that it is easy to maintain, structurally stable, and provides good protection.

The application relates to an anti-static system for a semiconductor clean room, relates to the technical field of clean room engineering, and aims to reduce the influence of static electricity discharge on chip manufacturing in the semiconductor clean room. The anti-static system for the semiconductor clean room comprises a support frame, a plurality of groups of support rods for conducting ground arranged at the bottom of the support frame, an anti-static floor laid in the support frame, an anti-static floor slab laid at the ends of all the support rods away from the support frame, and a moisture-proof isolation layer arranged on the side wall of the anti-static floor slab; and an anti-static wall plate is arranged around the outer peripheral wall of the support frame. The application has the effect of reducing static electricity in the clean room.

The application provides a metal pipe flanging structure, comprising: a metal pipe body; a first welding auxiliary part, which is arranged on the outer peripheral side of the end part of the metal pipe body, is annular, and is provided with a first auxiliary welding surface on the side far away from the metal pipe body; a second welding auxiliary part, which is arranged on the inner peripheral side of the end part of the metal pipe body, is annular, and is provided with a second auxiliary welding surface on the side far away from the metal pipe body; the first auxiliary welding surface and the second auxiliary welding surface are flush with the end part of the metal pipe body and are perpendicular to the side wall of the metal pipe body. The flanging structure can ensure the complete filling of the weld on the inner side of the metal pipe during welding, avoid the concave weld on the outer side of the metal pipe, and improve the welding strength of the metal pipe.

This invention relates to the field of welding technology, specifically disclosing a welding device for manufacturing filing cabinets, applied to the welding of the joints between U-shaped panels and side panels. The device includes: a base; a traction unit; an outer positioning unit; an inner positioning unit; and a welding unit. The traction unit drives the welding unit to move at a uniform speed along the joint, avoiding welding interruptions caused by traditional clamps, eliminating multiple weld joints, preventing defects such as incomplete welding and lack of fusion, and ensuring that the entire joint is formed in one go with stable and reliable quality. The inner and outer positioning units move synchronously with the traction unit, keeping the side panels vertical throughout the process, preventing tilting or misalignment caused by thermal stress or external forces, and ensuring a constant relative position between the welding unit and the joint, providing a precise trajectory for continuous welding. The welding unit is placed on the inner positioning unit and welds from the inside of the cabinet, with the weld hidden inside. The outer surface is smooth and uniform, without any joint protrusions or depressions, meeting the dual requirements of aesthetic appearance and structural integrity for filing cabinets.

The utility model discloses a packing carton with connecting structure relates to packing carton technical field, including outer box, install inside the outer box with inner box, be equipped with support frame between the outer box and inner box, the top surface of support frame is provided with two rotating sleeve of symmetrical rotation connection, the utility model discloses when using, through two carding post carding into the fixed sleeve of corresponding position, make two apron can no longer turn inwards again, strengthen the connection between two aprons, improve the compression resistance of apron, avoid apron and press inwards concave, and through the shape protection of support column and reinforcing rib to outer box, strengthen the compression resistance of outer box, make it not easy to deform, even if is subjected to greater external force, and the outer box can also keep structural integrity, provides reliable protection for article.

This utility model relates to the field of electronic device technology, and discloses a button mechanism and an electronic device. The button mechanism is installed in the button hole of the electronic device's housing, and includes a button and a flexible sheet. The button is movably inserted through the button hole; the flexible sheet connects the button and the housing, and a pressure regulating component is provided at the connection points of the flexible sheet and the housing. The pressure regulating component allows a pressure difference to be created between the flexible sheet and the housing, and between the flexible sheet and the button. This pressure difference ensures that the button is always under pressure. On the one hand, this pressure ensures that the button is installed in a preset position within the button hole, solving the problem of dents caused by tolerances during button assembly; on the other hand, after the button is pressed, the flexible sheet provides elasticity for the button to return to its original position.