38results about How to "Play the role of shock absorption" patented technology

The invention discloses a diameter-variable wheel for automatically adapting to a road surface, which comprises a plurality of outer wheel blades, a plurality of inner wheel blades and a plurality of connecting rod wheel blades; middle parts of the plurality of inner wheel blades are respectively provided with a telescopic strut bar fixed on a circumference of a central wheel hub; end faces on two sides of the central wheel hub are provided with a plurality of crank-slider mechanisms connected with the inner wheel blades, and are provided with a driving device for driving the plurality of crank-slider mechanisms; and one ends of connecting rods of the crank-slider mechanisms are connected with the inner wheel blades through revolute pairs, and the other ends of the connecting rods of the crank-slider mechanisms are connected with cranks through revolute pairs. The diameter-variable wheel solves the contradiction between wheel obstacle-surmounting performance and volume structure restraint, effectively improves the adaptability of the wheel, and solves the problems of the conventional wheels in the environments of underground, planetary surfaces or other comprehensive road surfaces. The wheel controls a servo motor to drive the cranks to rotate a certain angle, and the crank-slider mechanisms parallelly drive the inner wheel blades to radially expand or contract, so that the wheel diameter is continuously variable. The diameter-variable wheel can realize diameter-expanded obstacle surmounting, walking obstacle surmounting, tolerance obstacle surmounting and the like, and the adaptability and the flexibility of the wheel for different road surfaces are enhanced.

The invention relates to the technical field of shoes and discloses pressure massage shoes for massaging feet. The pressure massage shoe includes a wearing portion, through which a foot can penetrate, and a supporting part mounted on the bottom end of the wearing part, wherein the inner side wall of the wearing portion is equipped with an inflating part that can be inflated and expanded to press a foot; an inflating device inflating the inflating part is disposed in the supporting part; the inflating device has an air sac deformed due to foot pedaling; an air inlet end of the air sac is arranged outside the supporting part and provided with a one-way valve; and an air exhausting end of the air sac is communicated to the inflating part. The pressure massage shoes adopt an inflatable massage, thereby possessing great comfortableness; each part of the foot can be massaged; and the foot can be massaged by anytime and anywhere in daily life, and is unrestricted.

The invention introduces a multi-stage rotary vibration screening method, which includes the use of a multi-stage rotary vibration screening device. The process is as follows: a power mechanism and a rotary mechanism are installed on the multi-stage rotary vibration screening device, and the power mechanism is connected to the motor support through bolts. On the top, weld the motor support to the left side of the box, and connect the power mechanism to the rotating mechanism through a V-shaped belt; connect the rotating mechanism to the upper support plate of the box through rolling bearings, and set the feeding port on the upper support plate ;The secondary screening mechanism is installed on the eccentric shaft of the rotating mechanism through the sleeve, and the primary, tertiary, and quaternary screening mechanisms are set; the raw materials are added to the primary screening mechanism, the device is started, and the raw materials pass through the primary screening in turn Mechanism, second-level screening mechanism, third-level screening mechanism, and finally discharge through the fourth-level discharge device. The multi-stage screening device adopted by Lili adopts belt transmission, which plays the role of buffering and absorbing vibration. The eccentric shaft drives the concave screening device to vibrate and rotate, and the screening is sufficient. The device occupies a small area. demand.

The invention discloses a computer host with the good heat dissipation performance. The computer host comprises a computer case, a vertical hinged door, side panels, a small heat dissipation fan, a heat conducting piece, a small dust collector, a host body, an anti-damping pad, a dehumidifier, a power-off protector and a base. The side panels are arranged on the two sides of the computer case respectively. An installation frame is fixedly arranged on the side panels, and a small heat dissipation fan is installed on the installation frame, a partition plate with hole is fixedly arranged inside the computer case, a damping spring is fixedly arranged between the computer case and the partition plate with the hole. The host body is fixedly arranged inside the partition plate with the hole. A dustproof heat dissipation cover is fixedly arranged at the front end of the host body, the top of the host body is fixedly provided with a partition layer, the small dust collector is fixedly arranged inside the partition layer, the working end of the small dust collector is located inside the host body, and the power-off protector is fixedly arranged on one side of the top of the host body. The computer host with the good the heat dissipation performance is reasonable and simple in design, convenient to operate, good in stability, high in reliability and good in safety, suitable for being widely polarized.

The invention discloses a novel-structure fuel pump lubricating oil pipe. According to the novel-structure fuel pump lubricating oil pipe, a rigid structure in the prior art is redesigned into a rigidity-flexibility-combined structure; on the one hand, restraints in relevant assembly dimensions during fuel pump assembly are overcome, and the condition that a lubricating oil pipe body and ball ends are under the combined action of tension, pressure and torsion is avoided during assembling; on the other hand, influences caused by engine vibrations can be avoided, and a buffering and vibration-absorption function can be achieved; meanwhile, high costs due to the fact that rigid structure lubricating oil pipes made of new materials are utilized for the sake of technological improvements in order to avoid influences caused by stress and vibrations can also be avoided. By means of applications and experimental verifications, the novel-structure fuel pump lubricating oil pipe has no pipe body cracking and oil leakage during an application process, has a structure better than that in the prior art and can guarantee the normal operation and safety performance of a fuel pump.

The invention belongs to the technical field of shock absorbers, and particularly relates to a frictional force control based frictional damping type shock absorber. The frictional force control basedfrictional damping type shock absorber comprises a first fixing ring, a shock absorbing spring, a friction mechanism, a shock absorbing sleeve, a second fixing ring, a connecting rod, a telescoping sleeve, a telescoping rod, a first plate spring, an arc-shaped plate, a frictional plate, a circular hole, limiting grooves, a storing chamber, etc., wherein the storing chamber is formed in the shockabsorbing sleeve; the through circular hole is formed in the upper end surface of the storing chamber, and two limiting grooves are symmetrically formed in the inner circle surface of the storing chamber; two groups of second supporting seats are symmetrically mounted on the lower end surface of the storing chamber and fit the corresponding limiting grooves; and two second supporting seats in eachgroup are linearly distributed in the directions of the limiting grooves. According to the shock absorber, the impact force can be born in case of excessively high speed of the impact force or low speed of the impact force, and the shock absorber remains the impact force absorbing effect, so that unnecessary economic loss can be avoided.

The invention relates to the technical field of anti-shock equipment, and discloses a shock-isolation and shock-absorption recovery device for a high-rise building. The shock-isolation and shock-absorption recovery device for the high-rise building comprises a ground beam, wherein ring beams are fixedly installed at the top of the ground beam, and connecting plates are fixedly installed on the left and right sides of inner cavities of the ring beams; fixing plate ribs are fixedly installed on the sides, close to each other, of the two connecting plates, and external rotating handles are fixedly installed at the upper and lower ends of the sides, close to each other, of the two fixing plate ribs. According to the shock-isolation and shock-absorption recovery device for the high-rise building, by the mutual cooperation between shock-absorption sliding rods, shock-absorption springs and shock-absorption sleeves, the shock-absorption springs have a buffer action, the shock-absorption springs can move left and right inside the shock-absorption sleeves; through the interaction of internal rubbers and internal steel plates, the shock-absorption device can play a protective for the high-rise building and shock-absorption role in transverse waves and longitudinal waves of seismic waves, so that the shock-absorption device for the high-rise building can effectively protect the building,and the practicability of the shock-absorption for the device high-rise building is further improved.

The invention provides a horizontal supporting device suitable for processing a shell with a U-shaped structure, and an installation method. The horizontal supporting device is formed by a supportingbase, two glue holding blocks, two telescopic rods, a plurality of locking screws and two fine adjusting rods, wherein shoulder through holes are formed in two sides of the top part of the supportingbase; locking screw installation holes and fine adjusting rod installation holes are formed in side walls of the shoulder through holes; one telescopic rod is inserted into the should through hole onone side of the supporting base; the outer end of each telescopic rod is fixedly connected with one glue holding block; racks are arranged on side walls of the telescopic rods; the end part of each fine adjusting rod is of a gear structure; and after the fine adjusting rods stretch into the fine adjusting rod installation holes in the side walls of the shoulder through holes of the supporting base, the fine adjusting rods can be matched with the racks on the side walls of the telescopic rods; and the fine adjusting rods are rotated to drive the telescopic rods to move axially. According to thehorizontal supporting device suitable for processing the shell with the U-shaped structure provided by the invention, the rigidity of a component cantilever part can be improved, the processing vibration is prevented, and the functions of damping and shock absorbing are realized, so that the processing requirement of a component with the U-shaped structure is met. The device is convenient, simple, reliable and flexible, the cantilever-structured component processing vibration can be effectively inhibited, and the cantilever-structured component processing accuracy is improved.

The invention discloses end plate and plate skirt rotary lifting and riveting assembly equipment in the technical field of tubular pile plate skirt manufacturing. The end plate and plate skirt rotarylifting riveting assembly equipment comprises a frame body, the top of the frame body is fixedly connected with an installing plate through a connecting rod, a buffering mechanism is installed at thetop of the installing plate, the top of the installing plate is fixedly connected with a lifting air cylinder, the top of the installing plate is fixedly connected with a guiding shaft, the bottom ofthe lifting air cylinder penetrates through the installing plate and is rotationally connected with a plate skirt press-fit rotating plate, the bottom of the plate skirt press-fit rotating plate is connected with a centering circle supporting mechanism, the top of the frame body is fixedly connected with two sets of riveting knife mechanisms in bilateral symmetry, the bottom of the inner side of the frame body is fixedly connected with an end plate placing and lifting mechanism, a guiding handrail is fixedly connected to the outer side of the end plate placing and lifting mechanism, the guiding shaft is fixedly connected to the inner side of the frame body, the guiding handrail is slidably connected with the guiding shaft, and a motor is installed inside the end plate placing and lifting mechanism. The end plate and plate skirt rotary lifting and riveting assembly equipment is high in overall safety, low in fault rate, simple in structure and high in assembling speed.

The invention relates to a highway guardrail and a construction method thereof, and belongs to the technical field of road construction. The guardrail comprises stand columns, anti-blocking blocks anda wavy beam plate. The anti-blocking blocks are arranged on the stand columns, the wavy beam plate is arranged on the anti-blocking blocks, the stand columns are provided with mounting holes in the vertical direction, adjusting blocks are slidingly arranged in the stand columns in the length direction of the mounting holes, and positioning assemblies used for limiting positions of the anti-blocking blocks and the adjusting blocks are arranged on the adjusting blocks. After the road surface is heightened, and the height of the wavy beam plate needs to be adjusted, limiting of the positioning assemblies on the wavy beam plate is relieved, the adjusting blocks and the anti-blocking blocks are moved upwards jointly along the mounting holes, after the adjusting blocks and the anti-blocking blocks are moved to the designated position, through the positioning assemblies, the positions of the adjusting blocks and the anti-blocking blocks are fixed, the aim of adjusting the height of the wavybeam plate is achieved, construction is convenient, and cost is low.

The invention discloses an anti-explosion structure of a downhole polling robot. The anti-explosion structure comprises a polling robot shell, rollers and an infrared camera. The rollers are located at the bottom of the polling robot shell, the infrared camera is located on one side of the surface of the polling robot shell, and anti-explosion boxes are welded to the side faces of the bottom of the polling robot shell. Through the arrangement of a blocking anti-explosion metal material layer and nickel-based alloy semicircular blocks, the hardness and the rigidity of the polling robot shell are improved; through the arrangement of the anti-explosion boxes and metal anti-explosion plates, the anti-explosion performance of the polling robot shell is improved, and damage of downhole emergencies to the polling robot shell is reduced; through the arrangement of a sucking pump and a check valve, downhole air is sampled, and the downhole air can be conveniently detected; through the arrangement of electric telescopic rods and first anti-explosion wheels, the situation that barriers block movement of the rollers is effectively avoided; and through the arrangement of air springs and a laminated rubber shock insulating support, vibration generated by the polling robot shell is effectively reduced when explosions happen.

The invention relates to the technical field of the striking-resistant device, in particular to a martial striking-resistant exercise device. The device comprises a device body, wherein the outer portion of the device body is provided with a wrapping layer, the inner wall of one side of the wrapping layer is fixedly provided with a first inflatable layer, the side, close to the inner portion of the device body, of the first inflatable layer is provided with a damping engagement layer, the middle of the damping engagement layer is fixedly provided with a second inflatable layer, the top and bottom of the second inflatable layer are provided with a first damping device and a second damping device respectively, the sides, close to the first inflatable layer, of the first damping device and second damping device are provided with connecting plates, the sides, away from the first inflatable layer, of the connecting plates are connected with stress springs, the ends, away from the connectingplates, of the stress springs are fixedly connected with fixing plates, the main outer wall of the side, away from the fixing plates, of a third inflatable layer is fixedly connected with an arm fixing belt, a hand fixing belt and a main grip belt. The martial striking-resistant exercise device has scientificity and preciseness in the structural design, thereby having the advantages that the useeffect is better, the device is lighter and more convenient, and the cost is lower than other products in the same type.

The invention provides a Bluetooth earphone. The Bluetooth earphone comprises a Bluetooth earphone shell, a lower earphone body, an upper earphone body, a magnetic element, a charging chip, a dampingbase plate, an earphone cavity, a solar cell panel, an electricity storage plate, an earphone attraction piece, a car charger attraction piece, a control circuit board, a power source conversion circuit board, an ear plug, a protrusion portion and a power switch. The Bluetooth earphone is characterized in that the earphone cavity is formed in the Bluetooth earphone shell; the solar cell panel is arranged on the outer side wall of the Bluetooth earphone shell, and is connected with the Bluetooth earphone shell. The Bluetooth earphone has the advantages that the damping base plate is connected with one side of the upper earphone body and the lower earphone body, the damping device is arranged on one side of the control circuit board, the damping device, namely a damping spring, is fixedly connected with the inner side wall of the Bluetooth earphone shell, and the damping base plate and the damping device can play a role in protecting and damping of the Bluetooth earphone.

The invention discloses a breathable insole with composite interlayers. The insole is provided with the air-guiding interlayer and the compressive interlayer in a vertically distributed mode, and the compressive interlayer is provided with a first air exchange port communicated with a space outside a shoe and a second air exchange port communicated with the air-guiding interlayer; when a user walks by wearing the shoe provided with the insole, air ventilation and air exchange are achieved inside and outside the shoe through cooperation of two one-way valves, and therefore air ventilation of the shoe is greatly improved; when a person walks, air in the shoe can be continuously replaced and circulated, and discomfort caused by airtightness of a space in the shoe is avoided; meanwhile, due to the fact that the air-guiding interlayer of the insole is arranged on the upper layer of the whole insole, small breathable holes can be evenly distributed on the surface of the whole insole by reasonably arranging an air-guiding channel, therefore, effective air exchange can be achieved in all parts of the foot sole, the air ventilation and air exchange effects of the insole are significant, and the wearing comfortableness of the user is effectively improved.

The invention relates to the technical field of shock prevention equipment, and discloses a high-rise building shock isolation and absorption device. The high-rise building shock isolation and absorption device comprises a ground beam, wherein a ring beam is fixedly mounted at the top of the ground beam, connecting plates are fixedly mounted on the left side and the right side of an inner cavity of the ring beam, and fixing plate ribs are fixedly mounted on one sides close to each other, of two connecting plates. Outer rotating handles are fixedly mounted at the upper ends and the lower ends of one sides close to each other, of the two fixing plate ribs. According to the high-rise building shock isolation and absorption device, shock absorption sliding rods, shock absorption springs and shock absorption sleeves cooperate mutually, the shock absorption springs have a buffering effect, and the shock absorption sliding rods can move left and right in the shock absorption sleeves. Throughmutual action of inner rubber and an inner steel plate, the high-rise building shock absorption device can achieve the effect of protecting and shock absorption on transverse waves and longitudinal waves of seismic waves, so that the high-rise building shock absorption device can effectively protect a building, and the practicability of the high-rise building shock absorption device is improved.

The invention discloses a convenient-to-transport packaging mechanism for electronic product production and a use method thereof, and relates to the technical field of electronic product production. According to the convenient-to-transport packaging mechanism for electronic product production and the use method thereof, the convenient-to-transport packaging mechanism for electronic product production comprises an electronic product glue sealing machine; the surface of the electronic product glue sealing machine is fixedly connected to the side upper surface of a collection frame; a layer of sponge mat is pasted in the collecting frame; a plurality of damping springs are fixedly connected to the lower surface of the collecting frame; the lower ends of the damping springs are fixedly connected to the upper surface of a bottom plate; a lifting protection mechanism is fixedly connected to one side face of the bottom plate; two clamping mechanisms are fixedly connected to the two opposite side faces of the electronic product glue sealing machine correspondingly; and an absorption mechanism is fixedly connected with one side face of the collecting frame. According to the convenient-to-transport packaging mechanism for electronic product production, the sponge mat can buffer and protect electronic products, so that the situation that the electronic products fall onto the ground and are damaged is avoided, and the electronic products are protected.

The invention relates to the technical field of shock-preventing equipment, and discloses a high-rise building shock isolation and absorption recovery device. The high-rise building shock isolation and absorption recovery device comprises a ground beam, wherein a ring beam is fixedly mounted at the top of the ground beam, connecting plates are fixedly mounted on the left side and the right side ofan inner cavity of the ring beam, and fixing plate ribs are fixedly mounted on one sides close to each other, of two connecting plates; and outer rotating handles are fixedly mounted at the upper ends and the lower ends of one sides close to each other, of the two fixing plate ribs. According to the high-rise building shock isolation and absorption recovery device, shock absorption sliding rods,shock absorption springs and shock absorption sleeves mutually cooperate, the shock absorption springs have a buffering effect, and the shock absorption sliding rods can move left and right in the shock absorption sleeves; through mutual action of inner rubber and an inner steel plate, the high-rise building shock isolation and absorption device can achieve the effect of protecting and shock absorbing on transverse waves and longitudinal waves of seismic waves, so that the high-rise building shock isolation and absorption device can effectively protect a building, and the practicability of thehigh-rise building shock isolation and absorption device is further improved.

The invention discloses a wool compacting device for spinning. The wool compacting device comprises a base, a pressing plate, an operating table and sliding rails, damping gaskets are arranged at fourcorners of the bottom end of the base, a door body is hinged to one side of the base, a control panel is installed on the door body, supporting columns are installed at the two ends of the top of thebase, a dust collector is installed on the supporting column at one end of the top of the base, sliding blocks cooperating with sliding grooves are arranged at the two ends of the bottom of the operating table, the sliding rails are arranged at the two ends of the top of the operating table, clamping plates are fixed on the sliding rails through the sliding blocks, the output end of a temperaturesensor is electrically connected with the input end of the control panel, and the output end of the control panel is electrically connected with the input end of a heating wire. According to the device, the pressing plate and a hydraulic telescopic rod are installed, and the heating wire are arranged at the bottom end inside the pressing plate, so that the wool can be conveniently compacted afterthe pressing plate is heated, the compaction speed is higher, and the effect is better.

Disclosed is a connecting pipe fitting for a pipeline, comprising a nut (3), a connector outer frustum (5) and a connecting pipe bell mouth (7), wherein the nut has an inner tapered bore (6), a tapered sleeve (9) is provided in the nut inner tapered bore (6), the tapered sleeve (9) is a hollow tapered sleeve sheathing hole, a bottom part of the tapered sleeve sheathing hole is provided with a tapered sleeve inner tapered bore (18), a flared groove (24) is provided on the tapered sleeve inner tapered bore (18), a tapered sleeve sheathing hole wall (20) together with a tapered sleeve outer tapering oblique face forms a tapered sleeve tapering oblique angle (21), the connector outer frustum (5) squeezes the bell mouth (7) and squeezes the tapered sleeve inner tapered bore (18), and the tapered sleeve tapering oblique angle (21) was squeezed between the nut inner tapered bore (6) and a connecting pipe (10), sealing the connecting pipe (10) and forming a metallic hard seal between the connector outer frustum (5) and the tapered sleeve inner tapered bore (18), and the connecting pipe bell mouth (7) is squeezed between the connector outer frustum (5) and the flared groove (24), sealing the flared groove. The connecting pipe fitting for a pipeline has the advantages of fast and convenient sealed connection, low requirements in terms of sealing techniques, high sealing performance, being applicable to the connection of pipelines of various materials, and being completely interchangeable with existing connecting nuts.

The invention discloses a mobile phone rear shell with a damping function, which comprises a rear shell body, damping angle beads are arranged at the peripheral corners of the rear shell body, grooves are formed in the top and the bottom of the rear shell body and located between the two damping angle beads, supporting legs are rotatably mounted in the grooves through rotating shafts, and permanent magnets are arranged at the ends, away from the rotating shafts, of the supporting legs. The damping corner protector is of a cavity structure, an extrusion air bag is fixedly arranged in the damping corner protector, air pipes are arranged at the two ends of the extrusion air bag and communicated with the air bag, and the air bag is located on a push plate and elastically connected with a reset spring based on the push plate. Through the arrangement of the damping corner protectors, the anti-falling and damping effects are achieved, and damage caused by falling of a mobile phone to the mobile phone is effectively reduced; and the two supporting legs are arranged, so that the function of a mobile phone support is achieved, one shell has two purposes, and the effect of supporting the mobile phone can be achieved without additionally purchasing the mobile phone support.

The invention relates to the technical field of monocrystalline silicon slicing, in particular to a multi-section slicing machine for monocrystalline silicon processing, which comprises a fixing frame, a mounting mechanism is mounted on the fixing frame, a spraying mechanism is mounted on the fixing frame, a filtering mechanism is mounted on the spraying mechanism, an abutting mechanism is mounted on the mounting mechanism, and an abutting mechanism is mounted on the abutting mechanism. A collecting mechanism is mounted in the mounting mechanism, and a pollution discharge mechanism is mounted on the collecting mechanism; the mounting mechanism and the abutting mechanism facilitate good placement and slicing work of monocrystalline silicon with different lengths, the spraying mechanism and the filtering mechanism work, better cutting of the monocrystalline silicon is facilitated, abrasion of equipment is reduced, impurities in water can be filtered, and the service life of the equipment is prolonged. And by means of the importance of the collecting mechanism and the sewage discharging mechanism, the cut silicon wafers can be collected and placed, abrasion caused by falling of the silicon wafers is reduced, and meanwhile sewage can be conveniently recycled and stored.

The invention relates to the technical field of shock prevention equipment, and discloses a high-rise building shock isolation and absorption device. The high-rise building shock isolation and absorption device comprises a ground beam, wherein a ring beam is fixedly mounted at the top of the ground beam, connecting plates are fixedly mounted on the left side and the right side of an inner cavity of the ring beam, and fixing plate ribs are fixedly mounted on one sides close to each other, of two connecting plates. Outer rotating handles are fixedly mounted at the upper ends and the lower ends of one sides close to each other, of the two fixing plate ribs. According to the high-rise building shock isolation and absorption device, shock absorption sliding rods, shock absorption springs and shock absorption sleeves cooperate mutually, the shock absorption springs have a buffering effect, and the shock absorption sliding rods can move left and right in the shock absorption sleeves. Throughmutual action of inner rubber and an inner steel plate, the high-rise building shock absorption device can achieve the effect of protecting and shock absorption on transverse waves and longitudinal waves of seismic waves, so that the high-rise building shock absorption device can effectively protect a building, and the practicability of the high-rise building shock absorption device is improved.

The invention discloses a graphene and heat pump coupled heating and cooling device for a power battery pack. The device is characterized by being formed by coupling an air heat pump preheating device, an electric heater preheating device and a liquid cooling device; a heat management device is formed by sequentially connecting a battery pack (1), an electromagnetic valve (3), a condenser (4) and a compressor (5). The raw material of an electric heater adopted by the preheating system is graphene, and an auxiliary battery pack provides electricity for the heater. Temperature control probes are distributed in the battery pack, when the temperature is cold, low and high, the heater preheating system, the air heat pump preheating device and the liquid cooling device control the temperature of the power battery respectively, it is guaranteed that the power battery works at the proper temperature, and therefore the service life of the automobile battery pack is prolonged.

The invention provides an anti-collision design structure of a highway emergency escape lane. The anti-collision design structure comprises a front breast board, a rear breast board, side breast boards, a base, a buffer frame, a buffer sleeve, a damping column, rubber tires, a fastening rope and a spring. Side fixing frames are fixedly connected to the two sides of the front breast board respectively; the two sides of the rear breast board are fixedly connected to the side fixing frames on the two sides through bolts. The side face of the base is fixedly connected with the lower portion of the outer wall of a side fixing frame. The lower ends of the side breast boards are movably connected to the edge of the upper surface of the base through hinges; the lower end of the buffer sleeve is connected to the outer side of the upper surface of the base through welding; after being impacted, the breast boards can be deformed and unfolded for a certain length, the further buffering effect is achieved, compared with a commonly-used buffering facility for stacking tires in a traditional emergency lane, the safety is improved, and the situation that safety accidents happen due to the fact that a vehicle is out of control and collides with the side edge of the emergency emergency lane can be avoided through the arrangement of the side edge damping devices; and the buffering effect from the side face is achieved.

The child bicycle frame strength detection equipment comprises a machine body shell, a working cavity is formed in the machine body shell, the bottom wall of the working cavity is provided with first sliding grooves which are symmetrical in the left-right direction and provided with upward openings, and first sliding blocks slidably connected with the working cavity are slidably arranged in the first sliding grooves; an adjusting assembly capable of driving the first sliding block to move and adjust the position is arranged in the bottom wall of the working cavity, a vibration cavity is formed in the first sliding block, and a first connecting block is slidably arranged in the vibration cavity. The centrifugal block can extend out of the centrifugal cavity under the driving of the second motor to drive the first connecting rod to move, and the function of adjusting the length of the centrifugal block extending out of the centrifugal cavity by adjusting the rotating speed of the rotating block is achieved, so that the stroke of vertical vibration of the first connecting rod is adjusted, and the function of stepless adjustment of the vibration frequency of the vibration frame is achieved.

The invention discloses a K pump sealing pull ring which comprises a sealing pull ring body, a connecting bolt, a nut, annular side pressing plates and a pressing ring; cylindrical holes are formed in the sealing pull ring body; first springs are arranged in the cylindrical holes, close to the outer side, of the sealing pull ring body; second springs are arranged in the cylindrical holes, close to the inner side, of the sealing pull ring body; the first springs and the second springs are connected with the bottoms of the corresponding cylindrical holes through circular machine screws; the number of the annular side pressing plates is two; each annular side pressing plate is in contact connection with one end of one first spring and one end of one second spring correspondingly; the pressing ring is arranged between the two annular side pressing plates; the two ends of the pressing ring are in contact with the annular side pressing plates; a first sealing gasket is arranged on one side of each annular side pressing plate; a second sealing gasket is arranged in the pressing ring; and the rigidity of the second springs is greater than that of the first springs. The sealability of a connecting part of a K pump assembly under a vibration working condition is improved.