33results about How to "Compression adjustment" patented technology

The invention provides a battery box with a waterproof structure. The battery box comprises a battery box upper cover and a battery box lower box body connected through a fastening part, wherein a sealing strip is arranged between the battery box upper cover and the battery box lower box body; a stepped structure including two times of downward bending and one time of outward turning is arranged on the edge of the battery box upper cover to form a first upper cover lower bending part, an upper outer turning edge and a second upper cover lower bending part connected in sequence; the edge of the battery box lower box body is integrally bent upwards, then pressed downwards completely, and then turned outwards to form a lower box inner turning edge, a lower box upper bending part, a lower box body top complete-pressing edge and a lower box outer turning edge connected in sequence. According to the battery box, the sealing strip is mounted in a sealed space formed by the bending turning edges of the battery box upper cover and the battery box lower box body, so that the sealing strip can be prevented from extending towards two sides, and the compression amount of the sealing strip can be ensured; and the adjustment of the compression amount of the sealing strip can be realized by controlling the distance from the bottom of the second upper cover lower bending part to the inner turning edge of the box body.

The invention belongs to the technical field of automobile accessories, and particularly relates to a multistage damping steel plate spring. The multistage damping steel plate spring comprises a plurality of plate springs, the lengths of the plate springs are unequal, the thickness and the material of the plate springs are the same, a fixing pin penetrates through the middle points of the plate springs, the bottom end surface of each plate spring is provided with a containing groove, the inner wall of each containing groove is symmetrically provided with fixing blocks, a connecting bolt is arranged in each fixing block in a penetrating mode, and the bottom end of each connecting bolt penetrates through the corresponding containing groove to the interior of the corresponding plate spring. According to the multistage damping steel plate spring, through a designed sponge module, when the plate springs are installed on an automobile, the plate springs can be directly lubricated once the plate springs meet the load impact, so that the later-stage dismounting and lubricating efficiency is improved, the loss between every two adjacent plate springs is reduced, meanwhile, in combination with designed clamping pins, the stability of connection can be improved, the use is very stable and convenient, the lubricating efficiency can be improved, the service life of the plate springs is prolonged, and the safety coefficient is improved.

A liquid ejecting head includes a second flow-path-member comprising a second flow-path in communication with first and third flow-paths provided in first and second flow-path-members, the second flow-path-member stacked with the third flow-path-members in a stacking direction. A boundary between the first and second flow-path is tightly sealed by a first sealing-member. A boundary between the second and third flow-path is tightly sealed by a second sealing-member. The second flow-path-member includes a first substrate for positioning itself to the third flow-path-member in first and second directions intersecting with the stacking direction, and a second substrate for positioning itself to the third flow-path-member in the stacking direction. The first substrate is pressed against in the first and second directions by one of the first and second sealing-member. The second substrate is pressed against in the stacking direction by another one of the first and second sealing-member.

The invention discloses a weeding device for landscaping. The weeding device comprises a base, a herbicide box, a damping device, a front cutting wheel, a storage battery, a nozzle, a cutting device I, a protective cover and a cutting device II, wherein the herbicide box, the storage battery and a support platform are respectively arranged on the upper surface of the base, a second driving motor is fixedly installed on the upper surface of the support platform, an output shaft of the second driving motor is linked with a rotating shaft II through a coupling, a main driving gear is arranged on the other end of the rotating shaft II, secondary driving gears are respectively arranged on both sides of the main driving gear, the cutting device I and the cutting device II are respectively arranged below the protective cover, a push rod is fixedly connected to the upper surface of the right end of the base through threaded connection, and the damping device is fixedly embedded into the left end of the base. The weeding device has the advantages of simple structure, good damping effect, stability in operation and good weeding effect and has a high practical value, and additionally, herbicides can be sprayed.

The invention belongs to the field of automobile door limiters, in particular to an automobile limit mechanism, which includes a limit arm, a buffer block, and a limit box mechanism, wherein one end of the limit arm is fixed on the vehicle body through a mounting seat hinged thereto Near the hinged part of the car door, the other end of the limit arm passes through the limit box mechanism fixed inside the car door; the present invention can be adjusted four times, and each adjustment is based on the previous adjustment. The pressure spring in the side expansion rod is further compressed, and the present invention can complete the adjustment and maintenance of the door stopper without dismantling the door, and its cost is relatively low; through the alternate adjustment of the two pressure springs in the present invention, the The invention effectively limits the opening of the car door and effectively prevents the opened car door from being closed under the action of wind or other external forces.

The invention provides a pressure-adjustable floating abrasive belt grinding device with a feedback. The upper part of a supporting plate is provided with a driving wheel and a cylinder; the piston rod of the cylinder faces downwards vertically and is connected with a fine-adjustment sliding plate by a guide column; the bottom end of the fine-adjustment sliding plate is provided with a contact wheel which is connected with the driving wheel by an abrasive belt which coils an idler wheel; a guide column is movably sheathed by a spring which is in a normal-compression state; the position of theupper end of the spring is limited by a nut which is fixed on a guide column; the position of the lower end of the spring is limited by a baffle which is fixed on the supporting plate; furthermore, the guide column passes through the baffle. The grinding device eliminates the effects of the self-gravity of the grinding head during the grinding process by an added spring mechanism, controls the grinding pressure of the contact wheel within an allowable error range, keeps constant pressure, thus effectively improving the processing precision of complex curved surfaces such as steam engine vanes;furthermore, the grinding device ensures the quality of the profile of the workpiece, and has the advantages of smart concept, simple structure, easy execution, low reconstruction cost, good consistency of product, wide applicable range, and the like.

The invention belongs to the field of car door stoppers, and in particular relates to a stopper with adjustable limit force for automobiles, which includes a stopper arm, a mounting base, a buffer block, and a stopper box mechanism, wherein one end of the stopper arm is hinged to it The mounting seat is fixed on the car body near the hinge of the car door, and the other end of the limit arm passes through the limit box mechanism fixed inside the car door; the two alternately moving racks respectively drive the corresponding wedge block B along the corresponding wedge. The inclined plane of block A is staggered relative to the corresponding wedge block A, so that wedge block A moves vertically to the limit arm direction, and the moving wedge block A further compresses the corresponding telescopic rod, so that the pressure spring in the telescopic rod is further compressed and released. Energy storage, so as to realize the adjustment of the compression amount of the pressure spring that is deformed and fatigued, and then ensure the pressing force of the pressure spring on the limit arm through the pressure wheel, and continue to effectively play the role of the door limiter on the door opening.

The present invention relates to a metal tube ring moulded gasket seal. It includes ring-shaped metal tube and flexible seal filling material filled into the interior of said metal tube. The upper and lower surfaces of said metal tube are respectively covered with cladding layer, and said metal tube is fastened between limited inner ring and limited outer ring. Its manufacture method includes the following steps: (1), filling the flexible seal filling material into the internal cavity of metal tube; (2), bending and making the metal tube into the form of ring; (3), butt-welding two end noses of said ring metal tube to form seal ring; (4), moulding and making the metal tube be fastened between the limited inner ring and limited outer ring; and (5), respectively covering the upper and lower surfaces of said metal tube with cladding layer.

The present invention relates to a double-ring gasket seal. It includes the following several portions: outside metal tube, inside metal tube, flexible seal filling material, limited middle ring, limited outer ring, limited inner ring and cladding layers respectively covering upper and lower surfaces of inside and outside metal tubes. The outside metal tube is fastened between the limited outer ring and limited middle ring, the inside metal tube is fastened between the limited middle ring and limited inner ring, on the limited middle ring at least a through hole passed through upper and lower surfaces of limited middle ring is cut. Its manufacture method includes the following steps: (1), filling the flexible seal filling material into metal tube interior; (2), bending and making the metal tube into the form of ring; (3), butt-welding two ends of metal tube; (4), making the inside metal tube and outside metal tube be respectively and concentrically fastened between the limited inner ring and limited middle ring and between the limited middle ring and limited outer ring; and (5), respectively covering upper and lower surfaces of inside and outside metal tubes with cladding layers.

The invention provides a battery box with a waterproof structure, comprising a battery box upper cover and a battery box lower body connected by fasteners, a sealing strip is arranged between the battery box upper cover and the battery box lower body, the The edge of the upper cover of the battery box has a stepped structure that is bent downward twice and turned outward once, forming sequentially connected first upper cover lower bend, upper cover outer flange and second upper cover lower bend. The edge of the lower box of the battery box is turned inward as a whole and then bent upwards, then pressed down to the dead edge and then turned outwards to form a sequentially connected lower box inner flanging, lower box upper bending, lower box The top crimped edge and the outer edge of the lower box. In the present invention, the sealing strip is installed in the closed space formed by the bending and flanging of the upper cover of the battery box and the lower box body of the battery box, which can prevent the sealing strip from extending to both sides and ensure the compression of the sealing strip. The distance from the bottom of the bend to the flange in the lower box is used to adjust the compression of the sealing strip.

The invention discloses a gluing device for the production of green bamboo-wood composite flooring and a process thereof, which belongs to the technical field of gluing the bamboo-wood composite flooring, and comprises a bottom plate. Two slide rails arranged parallel to each other are installed on the upper surface of the bottom plate. And the upper surface of the bottom plate is provided with two storage boards, the storage boards are slidably installed on the slide rail, the inside of the slot is provided with a clamping assembly for clamping the workpiece, and the front and rear sides of the bottom board are equipped with Hollow square column 1, the top of two described hollow square columns 1 is installed with the same hollow square column 2; By setting the slide rail, the sliding installation of the storage board on the bottom plate is realized, thus making it convenient for people to adjust the storage board and fix it on the The position of the workpiece on it enables people to load the workpiece on one of the storage boards while gluing the other storage board, which realizes the full use of time and is conducive to improving the efficiency of the entire gluing device. work efficiency.