41results about How to "Play the role of buffer energy absorption" patented technology

The invention relates to a vibration and noise reduction device of a transformer. The vibration and noise reduction device comprises polyurethane buffers (1), intermediate partition plates (2), vibration reduction rubber pads (3) and C-shaped steel-channel frames (4) which are sequentially connected from bottom to top, wherein the polyurethane buffers (1) are fixedly connected with the ground, one side of an opening of each C-shaped steel-channel frame faces the vibration reduction rubber pads (3), the vibration reduction rubber pads (3) are embedded into the C-shaped steel-channel frames (4), and a transformer base is fixedly arranged on the other sides of the C-shaped steel-channel frames (4). Compared with the prior art, the vibration and noise reduction device has the advantages that dual vibration isolation modes are adopted, the mechanical vibration of the transformer is reduced, the influence of the vibration and the noise of the transformer on a surrounding environment is reduced, and meanwhile, the service lifetime of the transformer is also prolonged.

The present disclosure relates to a crash energy absorbing mechanism and a vehicle, comprising a fixed bracket and an energy absorbing device installed on the fixed bracket, the fixing bracket is made of metal material, the energy absorbing device includes an energy absorbing plunger and a housing, The housing includes an inner wall and an outer wall oppositely arranged, and a side wall connected between the inner wall and the outer wall, the side wall, the inner wall, and the outer wall together form a closed hydraulic chamber, and the energy-absorbing One end of the plunger is telescopically connected to the inside of the hydraulic chamber and divides the hydraulic chamber into two chambers, and the other end protrudes outside the hydraulic chamber, and the energy-absorbing plunger is provided with A buffer structure that enables oil in the hydraulic chamber to communicate between the two chambers. When the oil circulates between the two chambers, it converts the kinetic energy into heat energy and consumes the energy of the collision, so that it can play the role of cushioning and absorbing energy and reduce the risk of injury to the life safety of the occupants.

The invention provides a gas explosion-proof partition plate for downhole. The gas explosion-proof partition plate comprises an explosion-proof partition plate body and a plurality of sets of unit bodies; each set of unit body comprises a base and a basic micro element structure matched with the base; the basic micro element structures are mounted into U-shaped bases to constitute U-shaped unit bodies, and the basic micro element structures are mounted into corresponding U-shaped structures of H-shaped structures to constitute H-shaped unit bodies; and in the length direction, the H-shaped unit bodies and the U-shaped unit bodies are alternately distributed, the U-shaped unit bodies are located in the middle, and the upper U-shaped unit bodies and the lower U-shaped unit bodies are symmetrically distributed at intervals, the two sides of the U-shaped unit bodies abut against the H-shaped unit bodies through first buffering rods, and the basic micro element structures in the U-shaped unit bodies make contact with the upper inner wall and the lower inner wall of a corresponding explosion-proof cavity. According to the gas explosion-proof partition plate for the downhole, explosion detonation wave is buffered and absorbed, firstly, the explosion detonation wave is blocked and buffered through a protecting plate, then energy is transmitted to foamed concrete, second rubber rods andceramic base structures in the explosion-proof partition plate body and consumed, and the buffering energy-absorbing effect is achieved.

The invention belongs to the technical field of mining equipment, and in particular relates to a mud-sealed rock mass support method suitable for argillaceous rocks, which includes a hand-held spraying mechanism, which includes a bottom plate, and a support is installed at the bottom of the bottom plate The top surface of the bottom plate is equipped with a rear fixing seat and is connected to the bottom end of the electric push rod through the lower connecting seat. The top of the rear fixing seat is rotatably connected to the side of the sliding sleeve. The inner sliding rod is slidably installed on the inner side of the sleeve. The inner sliding rod is fixedly connected to the lower fixing plate through the connecting block and a damping spring is fixed between the inner sliding rod and the outer fixing sleeve. The lower fixing plate and the upper fixing plate are fixed on the quick-connect slurry nozzle. On the outside, the rear side of the top surface of the bottom plate is connected with a non-slip handle and a U-shaped frame through the lower connecting frame, the horizontal pipe, and the upper connecting frame. The outer side of the U-shaped frame is equipped with a buffer sleeve, which can play an auxiliary role The role of support, damping springs and shock absorbing pads can buffer and absorb energy, reducing the workload of personnel.

The invention discloses an anti-seismic fabricated house and relates to the technical field of fabricated houses. The prefabricated house comprises stand columns, a base, prefabricated wallboards anda roof cover. Buffering mechanisms with buffering and damping effects is installed between the stand columns and the base. Each buffering mechanism comprises a supporting base, a hemisphere fixedly arranged on the supporting base, a connecting board integrally arranged on the corresponding stand column and a damping device arranged between the supporting base and the base, an installing groove isformed in the base, the supporting base and the connecting board are arranged in the installing groove, a plurality of damping springs are arranged between the connecting board and the groove wall ofthe installing groove, a spherical groove is formed in the connecting board, the hemisphere is rotationally arranged in the spherical groove, a plurality of balls are arranged between the groove bottom of the installing groove and the supporting base in a rolling mode, and a plurality of supporting springs are arranged between groove openings in the two sides of the base and the corresponding stand column. The fabricated house has the advantage of stable damping in multiple directions, and the safety and stability of the fabricated house are improved.

The invention discloses a splicing type vibration-damping lead wooden frame used in an oil-immersed transformer, which comprises cross beams fixed on an upper transformer clamping plate and a lower transformer clamping plate and a longitudinal beam used for fixing the lead, wherein the two ends of the longitudinal beam are respectively connected with the two cross beams through tenon and an mortise structures. A certain gap is arranged between the tenon and the mortise in the mortise and mortise structure, and the gap is filled with an elastic sealing glue after curing. Through the non-rigid connection of the tenon and mortise structure, the vibration of the transformer can be buffered, and the effect of damping and noise reduction is realized on the basis of meeting the lead supporting function.

The invention relates to a fire-fighting pipe fitting and its installation method, which belongs to the technical field of fire-fighting, and includes a pipe body, a connecting pipe and a fixing pipe. A fixing ring is provided, and the side wall of the fixing ring near the pipe body is provided with an elastic sealing ring that interferes with the end surface of the pipe body; the fixing pipe includes two semi-circular half pipes and a connecting assembly for fixing the two half pipes , the fixing tube is sheathed outside the connecting tube, and the fixing tube is provided with an elastic member for hindering the axial sliding of the connecting tube. When the pipe body is subjected to axial impact, the pipe body will act on the elastic sealing ring with the impact force, the elastic sealing ring absorbs part of the impact force, and then the remaining impact force drives the connecting pipe to slide axially, so that the elastic part is compressed and acts as a buffer The function of energy absorption prevents water leakage at the joint of the pipe body and reduces maintenance costs.

The invention discloses an automobile front protection system and an automobile. The automobile front protection system includes a front protection skin, a first energy-absorbing bracket and a force ejection device; the force ejection device is located at the bottom of the lower beam of the water tank bracket, and the first One side of an energy-absorbing bracket is installed on the lower side of the front protection skin, and the other side is connected with the force ejection device; the force ejection device includes a ratchet, a first pawl, a second pawl, a control switch and a spring; An energy-absorbing bracket can push the control switch to close, so that the ratchet drives the first pawl and the second pawl to rotate, the first pawl slides out from the control switch, and the second pawl slides out from the spring in the compressed state, so that the spring Drive the first energy-absorbing bracket and the lower side of the front bumper to pop out. The first energy-absorbing bracket of the present invention can absorb the impact energy, and at the same time, the force-bearing ejection device ejects the first energy-absorbing bracket and the front protection skin to support the impacted pedestrian's calf and effectively protect the pedestrian's lower limbs. Protective effects.

The invention discloses a follow-up frame of a rotary drilling rig. The follow-up frame comprises a follow-up frame body, a rotary supporter, two connecting arms and a wear-resistant contact plate, wherein a U-shaped chute in longitudinal distribution is formed in each connecting arm; a clamp groove in longitudinal distribution is formed in each of three inner wall surfaces of the chute; the transverse cross section of each clamp groove is in a T shape; at least one end of the upper end and the lower end of each clamp groove penetrates through the end part of the chute to form an opening; a cover plate used for covering the opening of each clamp groove is arranged on the chute; a T-shaped seat corresponding to the clamp groove is arranged at the back part of the wear-resistant contact plate; and each inner wall surface and the wear-resistant contact plate are in matched connection through the clamp groove and the T-shaped seat. The inner wall surface of the chute is connected with theT-shaped seat of the wear-resistant contact plate through the T-shaped clamp groove, so that the damage cannot easily occur; the service life of the follow-up frame is prolonged; and the work stability of the rotary drilling rig is ensured.

The application relates to a casement window with a heat-insulated broken bridge, which includes an installation frame and a window, the window includes a window frame and a glass plate arranged in the window frame, the window frame is hinged on the installation frame, and the installation frame includes a bottom frame, The bottom frame is slid along its length direction to be provided with a sliding seat, on which a slider is slidably arranged, on which a connecting rod is hinged, and the end of the connecting rod far away from the slider is hinged to the window frame, and the sliding seat is provided with a device for hindering the movement of the sliding block. As for the sliding buffer assembly, the sliding seat is provided with a limit assembly for limiting the position of the sliding seat. When the window is opened, the position of the sliding seat is limited by the limit assembly. When the window is subjected to external forces such as wind, the window shakes and drives the connecting rod to move, and the connecting rod drives the slider to slide. At this time, the buffer component hinders the sliding. The block movement plays the role of cushioning and absorbing energy, reducing the damage of the window caused by vibration.