152results about How to "Realize the buffering effect" patented technology

The invention discloses a broken belt buffering and clamping mechanism for a stretcher, and belongs to the technical field of stretchers. The device mainly comprises a workbench; the clamping device comprises a lower clamping assembly and an upper clamping assembly, the upper clamping assembly comprises a supporting frame, two moving modules are arranged in the supporting frame, and a cross beam is arranged at the output ends of the moving modules; a limiting ring is mounted in the chassis; knobs are mounted on the screws in a threaded manner; one end of each sliding rod is provided with an end head; two groups of damping springs; the connecting cylinder is mounted at the bottom of the movable disc, and an upper clamping part is arranged on the connecting cylinder. According to the broken belt buffering and clamping mechanism for the stretcher, through the arrangement of the upper clamping assembly and the lower clamping assembly, the whole to-be-tested object can be buffered after the to-be-tested object is broken, the situation that connecting parts between the upper clamping assembly and the stretcher and between the lower clamping assembly and the stretcher are affected is avoided, and the effect of buffering the whole clamp during belt breaking is achieved.

The utility model belongs to the technical field of anti-collision protection devices, and provides a traffic transportation anti-collision protection device which comprises a bottom plate, a vertical plate is fixedly installed on one side of the bottom plate, and three supporting rods are connected between the bottom plate and the vertical plate. The three supporting rods are arranged between the bottom plate and the vertical plate, so that the vertical plate is stressed more strongly, meanwhile, the protection plate is arranged on one side of the vertical plate, a vehicle is protected through the protection plate, the first spring dampers are arranged between the protection plate and the vertical plate, and meanwhile, the rubber plate and the air bag are arranged on one side of the protection plate. The buffering effect on a vehicle is achieved, the situation that the vehicle directly impacts on the guardrail to cause damage is avoided, a groove is formed in one side of a vertical plate, a sliding block and a second spring damper are arranged in the groove, meanwhile, a force unloading rod is hinged between the sliding block and a protection plate, after the protection plate is impacted, force can be transmitted to the second spring damper through the force unloading rod, and the protection plate is prevented from being damaged. And the protection capability of the device is further improved.

The invention discloses a multi-stage damping semi-active magnetoelectric damper capable of recycling energy. Relates to the technical field of engineering structure shock-absorbing dampers, and comprises a transmission mechanism, the transmission mechanism comprises a spring box, power springs, steel wires and a rotor, the spring box is provided with an upper part and a lower part, the steel wires and the power springs are respectively arranged in the upper part and the lower part of the spring box, the rotor is arranged in the middle of the spring box, and one ends of the two steel wires are connected and wound on the rotor; lug rings are arranged at the other ends of the two steel wires, the inner ring ends of the two power springs are fixed to the rotor in a penetrating mode, and the other ends of the two power springs are connected with the spring box; the buffer mechanism comprises a first-stage buffer unit, a second-stage buffer layer and a third-stage buffer unit, and the first-stage buffer unit, the second-stage buffer layer and the third-stage buffer unit are sequentially arranged on the two spring boxes; by means of the novel damper capable of achieving multi-order mixed control over acceleration, speed and displacement, an engineering structure can meet the self-adaptive damping requirement during vibration.

The utility model relates to a machine tool machining center sliding guide rail unloading device which comprises a guide rail body and an object placing plate, a sliding unloading mechanism is arranged in the object placing plate, a positioning dismounting assembly is arranged in the object placing plate, the sliding unloading mechanism comprises an object placing plate connected to the outer side of the guide rail body in a sliding mode, and the object placing plate is connected with the guide rail body in a sliding mode. And two buffer cavities are formed in the storage plate, and upper push plates are movably connected into the buffer cavities of the storage plate. According to the unloading device for the sliding guide rail of the machine tool machining center, pressure can be applied to the upper push plate through the arranged buffering assembly, so that the rollers in the mounting frame abut against the guide rail body, load buffering and unloading are achieved, and the influence of friction on sliding of the storage plate on the outer side of the guide rail body can be reduced through the arrangement of the rollers and the balls; and therefore, the service life of the storage plate and the guide rail body is prolonged while smooth sliding of the storage plate is guaranteed, use is convenient, and the practical effect of the device is effectively improved.

The invention discloses a water rotation type paint spray booth wastewater treatment device, and belongs to the technical field of wastewater treatment.The water rotation type paint spray booth wastewater treatment device comprises a water flow buffering mechanism, a wastewater separation mechanism is arranged below the water flow buffering mechanism, and paint slag separation filter cloth is fixedly installed in the wastewater separation mechanism; a separation driving mechanism corresponding to the paint slag separation filter cloth is mounted on one side of the rear end of the wastewater separation mechanism, and a spraying separation mechanism is fixedly mounted on the separation driving mechanism; the bottom of the rear end of the wastewater separation mechanism is connected with a flow guide mechanism communicated with the wastewater separation mechanism; and the rear end of the flow guide mechanism is fixedly connected with a filtered water storage mechanism. By designing the water flow buffer mechanism, the water flow can be further buffered and dispersed, so that the impact force of the water flow entering the wastewater separation mechanism below is greatly reduced, the disturbance caused after the water flow enters the wastewater separation mechanism is further reduced, and the follow-up paint slag and impurity interception and separation effect is further ensured.

The utility model discloses a glass curtain wall with a high-strength connecting structure, which belongs to the technical field of glass curtain walls, and is technically characterized by comprising a curtain wall main body, and the curtain wall main body is of a three-layer stacking structure through an arranged butt joint stable mounting mechanism. The transparent sound insulation film for sound insulation is arranged at the joint of the inner-layer curtain wall body and the outer-layer curtain wall body, so that the sound insulation performance of the glass curtain wall is improved, meanwhile, the butt-joint stable installation mechanism also prevents external dust and water from entering a butt-joint installation gap, installation sealing protection of the glass curtain wall is achieved, and the service life of the glass curtain wall is prolonged. In addition, the overall installation stability of the curtain wall is correspondingly achieved through the butt joint stable installation mechanism, the supporting strength and rigidity of the glass curtain wall in use are remarkably improved, the stability is high, vibration and pressure can be buffered and dispersed through the arranged pressure-resistant buffering mechanism, pressure-resistant protection of the glass curtain wall is achieved, the pressure-resistant and anti-seismic performance is high, and the service life of the glass curtain wall is prolonged. The connecting structure has the advantages of good connecting stability and high strength.

The safety hydraulic oil cylinder for the hydraulic disc brake comprises a hydraulic oil cylinder body, a piston rod used for supporting is arranged in the hydraulic oil cylinder body, a sealing mechanism is arranged between the piston rod and the hydraulic oil cylinder body, and the sealing mechanism comprises a mounting plate mounted at the top end of the hydraulic oil cylinder body; a sealing piece used for sealing the piston rod is arranged between the piston rod and the mounting plate, an annular groove used for relieving stress is formed in the outer surface of the sealing piece, and a plurality of air holes used for exhausting are formed in the annular groove. According to the hydraulic oil cylinder, the stress borne by the sealing element in the installation and use process can be effectively relieved, meanwhile, dynamic pressurization is conducted on the sealing element through flowing of hydraulic oil in the hydraulic oil cylinder, the mechanism can automatically adjust the sealing pressure along with the working state of the hydraulic oil cylinder, and it is guaranteed that the good sealing effect can be kept under any working condition.

The invention discloses a method for protecting a transistor, a protection circuit and a control circuit. The protection circuit comprises a first protection circuit; one end of the first protection circuit is connected with the driving signal output end of the driving circuit, and the other end is connected with the driving end of the to-be-driven transistor; the first protection circuit is used for sharing the charging voltage of the driving end capacitor of the transistor to be driven when the driving voltage provided by the driving circuit enables the first voltage of the first protection circuit not to reach the first working voltage; when the driving voltage provided by the driving circuit enables the first voltage to reach the first working voltage, entering a first conduction state, and controlling the conduction or turn-off of the to-be-driven transistor according to the driving voltage in the first conduction state; and under the condition that the transistor to be driven is conducted, when the driving voltage provided by the driving circuit enables the second voltage of the first protection circuit to reach the second working voltage, the first protection circuit enters a first turn-off state, and the transistor to be driven is controlled to be turned off or conducted after entering the first turn-off state.

This utility model discloses a centralized transfer bracket for anti-displacement cast steel parts after production. It includes a base plate, with lifting plates fixedly connected to both sides of the base plate surface. A buffer assembly is installed on one side of the base plate's interior, and a support assembly is installed on the other side. The buffer assembly prevents the box containing the cast steel parts from bumping or knocking, while the support assembly supports the device. Through the design of the base plate, lifting plates, buffer assembly, and support assembly, when the surface of the support assembly is subjected to pressure during use, the support structure within the support assembly automatically opens to support the device. When not in use, it automatically retracts. Simultaneously, the buffer assembly also cushions the box containing the cast steel parts, preventing the box from slipping and damaging the cast steel parts during transport. This achieves the effect of reducing the space occupied by the bracket and preventing damage to the cast steel parts.

The utility model discloses a central air conditioning pipeline noise reduction assembly, including central air conditioning ventilation pipeline, the inside of central air conditioning ventilation pipeline is provided with central air conditioning ventilation pipeline, the inside of central air conditioning ventilation pipeline is provided with noise reduction assembly no.

The utility model belongs to the technical field of electric cylinders, particularly relates to an electric cylinder with a buffer structure, and aims to solve the problem that in the prior art, when a piston rod is out of control in actual use, the piston rod quickly falls back under the action of gravity and is easy to collide with a cylinder body of the electric cylinder, so that the electric cylinder is damaged. The device comprises a mounting plate; the device comprises a mounting plate, an electric cylinder, a top plate, two limiting rods and two buffer boxes, the electric cylinder is fixedly connected to the top of the mounting plate, the top plate is fixedly connected to the top of the electric cylinder, the two limiting rods and the two buffer boxes are symmetrically and fixedly connected to the bottom of the top plate, and the two buffer boxes are symmetrically and fixedly connected to the top of the mounting plate; by means of the simple structure, the buffering effect on the electric cylinder is achieved, the piston rod is prevented from colliding with a cylinder body of the electric cylinder when the electric cylinder is out of control, damage to the electric cylinder is avoided, and the buffering device has high practicability.

The utility model discloses double-layer laminated glass and relates to the technical field of glass. The double-layer laminated glass comprises a laminated glass body, a sleeve seat and a positioning base, the sleeve seat and the positioning base are arranged on the outer side of the laminated glass body, a first rubber ring is movably clamped in the sleeve seat, a second rubber ring is movably clamped in the positioning base, and a locking mechanism is arranged between the sleeve seat and the positioning base. According to the double-layer laminated glass, loading of the laminated glass body is convenient through the sleeve base, the positioning base and the locking mechanism, the laminated glass body is protected through the sleeve base and the positioning base, sealing and buffering of the laminated glass body are achieved through the first rubber ring and the second rubber ring, and when the first rubber ring and the second rubber ring are aged, the first rubber ring and the second rubber ring are sealed and buffered. And the first rubber ring and the second rubber ring can be conveniently and rapidly replaced and maintained, so that the device is easy to maintain, and the use requirements are met.

The present invention relates to the technical field of cooking wine fermentation, and specifically to a production process of zero-additive fermented cooking wine, which is produced using a fermentation device; wherein the fermentation device comprises: a fermentation barrel, the bottom of which is fixedly connected to a fermentation funnel; a yeast discharge mechanism, the yeast discharge mechanism comprises a plurality of discharge rings fixedly connected to the inner wall of the fermentation barrel, each discharge ring being away from the outer peripheral surface of the fermentation barrel and having a plurality of groups of row holes in an annular array; a stirring and mixing mechanism, the stirring and mixing mechanism comprising a diversion barrel rotatably connected to the inside of the fermentation barrel. Yeast can be evenly discharged into various positions in the fermentation barrel through the discharge ring and the row holes in the yeast discharge mechanism. Since the discharge ring is in a circular ring shape, this design can ensure that the yeast is evenly distributed in the annular pipe, and since the row holes are located at both ends of the discharge ring, the yeast can be more evenly distributed to different positions in the malt koji, thereby achieving a more comprehensive distribution of the yeast in the malt koji.

The utility model discloses a mixing device for modifying concrete by replacing reclaimed rubber with rubber powder, which belongs to concrete production and comprises a support, a horizontal tank is mounted on the support, a stirring mechanism is mounted in the horizontal tank and comprises a stirring roller, at least three scrapers are mounted in the horizontal tank, and the scrapers are mounted on the support. Two connecting legs are arranged on one side of the scraping plate, the connecting legs are connected with the stirring roller, a scraping ring is placed between the two connecting legs which are far away from each other, a profiling groove which is in sliding fit with the scraping plate is formed in the scraping ring, the upper end of the support is rotationally connected with the outer wall of the horizontal tank body, and the lower end of the support is rotationally connected with the lower end of the horizontal tank body. The support is provided with an air cylinder for controlling the horizontal tank body to rotate around the joint of the support and the horizontal tank body, one end of the air cylinder is rotationally connected with a sliding block, the lower end of the horizontal tank body is provided with a sliding rail, the sliding rail is laid in the length direction of the horizontal tank body, and the sliding block is in sliding fit with the sliding rail. According to the concrete stirring device, materials accumulated at the bottom can be uniformly stirred, and concrete is prevented from being adhered to the inner wall of the device.

The utility model relates to a sightseeing vehicle technical field, concretely relates to a kind of tourist sightseeing vehicle safety early warning protection device, including vehicle body, the top of vehicle body is provided with the protection component for the protection when vehicle body is about to impact barrier, protection component includes two connecting barrels fixedly connected in the top of vehicle body, and the one end of connecting barrel is slidably connected with anti-collision plate, the top of vehicle body is provided with alarm component, the utility model is provided with protection component and alarm component, and it has passive protection and early warning function in the process of driving sightseeing vehicle, when the front end of vehicle is about to contact barrier, anti-collision plate in the front of vehicle is compressed under stress simultaneously, can rotate through connecting structure drive gear set and drive alarm structure action, realize the buffer energy absorption and synchronous sound early warning to barrier, avoid the collision risk caused by the driver due to blind area or inattention.

This invention discloses an anti-shock hydraulic closed-loop pump control system and hydraulic machinery. The anti-shock hydraulic closed-loop pump control system includes a closed-loop pump assembly and a power component, as well as two anti-shock valve assemblies arranged in parallel with the power component. The inlet of one anti-shock valve assembly is connected to the first end of the power component, and the inlet of the other anti-shock valve assembly is connected to the second end of the power component. Each anti-shock valve assembly includes an externally controlled buffer valve, a buffer damper, and an accumulator. The externally controlled buffer valve has a feedback end and a control end on opposite sides of its valve core. The control end has a spring for driving the valve core to move and close towards the feedback end. The inlet of the externally controlled buffer valve has a feedback oil circuit connected to the feedback end and a control oil circuit connected to the control end. The buffer damper and the accumulator are sequentially arranged on the control oil circuit. The anti-shock hydraulic closed-loop pump control system provided by this invention can reduce pressure shocks on the high-pressure side of the oil circuit and prevent rapid pressure drops on the low-pressure side of the oil circuit.

The application discloses a deep roadway dynamic and static load source cooperation integrated strong support method and system, belongs to the underground engineering roadway intelligent support technical field, and the method is as follows: capturing surrounding rock stress and energy events, establishing a correlation model, dividing the roadway space into a global static load bearing area and a dynamic impact key protection area; constructing an ultra-large tonnage prestressed anchor cable / rod, erecting a collapsible heavy U-shaped steel support and spraying a steel fiber concrete to form a composite surface protection structure, and then evaluating the cooperation performance; in the static load bearing structure, active energy absorption units are additionally arranged between main anchor rods / cables, and passive energy dissipation units are filled between the U-shaped steel support and the concrete spraying layer. The system is as follows: a load fine identification module is used for distinguishing two types of loads and dividing areas; a main strong support subsystem is used for implementing active and passive cooperative support; a key area buffer subsystem is used for strengthening the impact key area; and an intelligent monitoring feedback platform is used for dynamically evaluating the performance. The application can significantly improve the overall stability of the deep roadway.

The utility model discloses a self-balancing splayed screen supported by air springs, relates to the technical field of vibrating screens, and aims to solve the problems that parts are seriously damaged, the machining precision is uncontrollable and the strength is seriously reduced under long-term efficient operation in the prior art. A first discharging port and a second discharging port are formed in the two sides of the screen box respectively, screen cloth in the screen box is arranged in a splayed shape, vibrating mechanisms are arranged on the two sides of the screen box, a base is arranged below the screen box and connected with the screen box through an air spring, a piston is slidably connected into the air spring, and a push rod is arranged on the piston and connected with the bottom of the screen box. According to the vibrating screen, due to the fact that the air spring is arranged, the pressure difference exists on the two sides of the piston during vibration, damage and abrasion to the internal structure of a part are reduced, the ultrasonic sensor is arranged, automatic leveling of the screen is achieved, and the supporting rigidity can be adjusted when necessary.

The invention relates to the technical field of automobile part manufacturing, in particular to automobile part aluminum profile surface finishing equipment and a finishing process. The automobile part aluminum profile surface finishing equipment comprises a supporting seat and a linear polishing machine, and the linear polishing machine is vertically mounted at the top end of the supporting seat; a plurality of limiting frames distributed in the vertical direction are assembled on the surface of the linear polishing machine, the limiting frames are used for limiting the moving direction of aluminum profiles, a feeding assembly is installed in the supporting base, a discharging assembly is installed at the top end of the linear polishing machine, the feeding assembly comprises a feeding rail and a clamping assembly, and the clamping assembly is used for clamping the feeding rail. The four-side polishing machine aims at solving the problems that an existing four-side polishing machine is usually transversely placed and installed, too much ground space can be occupied, and the space layout of a production workshop with the limited field area is prone to being tense.

The invention relates to the technical field of charging piles, in particular to electric vehicle charging station protection equipment and a protection method. The electric vehicle charging station protection equipment comprises a main body frame, a charging pile body and a buffer contraction mechanism, and the buffer contraction mechanism comprises a buffer steel frame set arranged in front of the charging pile body and a first guide buffer assembly which is matched with the buffer steel frame set to move axially and buffers a vehicle transversely. According to the charging pile, when the charging pile body is subjected to the vehicle collision risk, the collision force can be buffered through the buffer contraction mechanism, the charging pile body is subjected to descending displacement through the buffer contraction mechanism while buffering is conducted, and therefore dual protection on the charging pile body is achieved; emergency braking and inertia buffering of an out-of-control vehicle are achieved, the safety of a driver and personnel around the charging pile body is protected while the safety of the charging pile body is ensured, and the purpose of protecting the charging pile body and the personnel is achieved.

The utility model discloses a buffering pull rod of a large tractor, which belongs to the technical field of buffering pull rods and comprises an outer side device, a connecting device is arranged on the outer side device, a nut is arranged on the connecting device, a spiral pull button is arranged on the nut, and a screw hole device is arranged on the outer side device. The relative position between the connecting device and the screw hole device can be adjusted, so that the length or the fastening degree of the pull rod is changed, the pull rod has high flexibility and adjustability through the design, the outer side device achieves the buffering effect through internal structures such as a spring device, the internal devices are protected against impact and vibration, and the service life of the pull rod is prolonged. The service life of equipment is prolonged, the screw hole device is used for screw combination, the telescopic degree and the buffering effect of the pull rod can be accurately controlled by controlling screwing-in and screwing-out of screws, the buffering operation of the pull rod is more accurate and controllable through the design, and the spiral pull button is matched with the screw hole device.

A robot vision extension support comprises a vertical main rod and a sliding sleeve which is arranged on the main rod and can slide up and down, one side of the sliding sleeve is fixedly connected with a camera fixing cylinder through an extension arm, and the top of the inner side wall of the fixing cylinder is provided with a plurality of protruding blocks extending towards the center of the fixing cylinder. The other end of each protruding block fixedly extends to an elastic piece at the bottom of the fixing cylinder, a gap is reserved between the side wall of each elastic piece and the side wall of the fixing cylinder, and the lower end of each elastic piece is provided with a triangular limiting protrusion with the tip pointing to the center of the fixing cylinder. According to the utility model, the height of the limiting ring is manually adjusted according to the product characteristics of a production line body and equipment, so that the height of the sliding sleeve is conveniently adjusted, and a certain buffering effect can be realized through the buffering tension spring when the sliding sleeve is adjusted and the extension arm moves; the extension arm is composed of three sections of connecting plates, so that the visual graphic image acquisition range of the robot can be effectively extended.

The utility model belongs to the technical field of glass guide rails, and particularly discloses a glass guide rail with a V-shaped guide structure, which comprises a shell, a second sealing ring is embedded at the edge of an opening at one end of the shell, a bottom cover is attached to the second sealing ring at one end of the shell close to the second sealing ring, and a sealing bolt is sleeved in the bottom cover. A first sealing ring is arranged between the sealing bolt and the bottom cover, a sleeve is arranged on the side, close to the second sealing ring, of the bottom cover, a plurality of open holes are formed in the side face of the bottom cover, a spring is sleeved with one end of the sleeve, an abutting block is attached to one end of the spring, a push rod is fixed to the side, away from the spring, of the abutting block, and a tray is fixed to the end, away from the abutting block, of the push rod. A rubber pad is embedded in the tray, the spring is matched with the abutting block to push the push rod outwards, second-time damping operation is prepared, and an open hole formed in the sleeve limits the flowing speed of hydraulic oil and slows down the moving speed of the push rod.

The invention relates to the technical field of energy accumulators, in particular to a pressure conversion hydraulic mechanism energy accumulator which comprises a supporting cylinder and an air bag installed in the supporting cylinder, and an oil inlet valve is installed on the supporting cylinder; a plurality of anti-friction pieces for reducing friction are mounted on the air bag; an oil inlet assembly capable of conveying hydraulic oil is installed on the supporting cylinder. By arranging the anti-friction piece with the balls on the periphery of the air bag and combining the anti-tearing reinforcing structure at the lower end of the air bag, contact between the air bag and the supporting cylinder is changed from surface contact sliding friction to multi-point rolling supporting, and the abrasion and tearing risks of the air bag are remarkably reduced; by means of a variable pressure supporting mechanism formed by the oil inlet assembly, the blocking piece, the connecting piece and the supporting piece, when the air bag moves towards the oil inlet valve, flexible blocking can be achieved, gas buffering and jacking supporting force can be synchronously established, hard contact and excessive deformation of the air bag and the oil inlet valve are avoided, and therefore the working safety of the energy accumulator is improved, and the service life of the energy accumulator is prolonged.

The utility model relates to the technical field of mining, and discloses a mining ore conveying device which comprises a bottom plate, two motors are fixedly installed on the outer walls of partition plates, two driving shafts are rotatably connected to the interiors of the two partition plates, hydraulic rods are rotatably connected to the interiors of the two first clamping plates, and the hydraulic rods are rotatably connected to the interiors of the two second clamping plates. Two second clamping plates are fixedly welded to the outer wall of the support, an adjusting plate is rotatably connected to the outer wall of the top of the bottom plate, an annular plate is rotatably connected to the outer wall of the support, and a bolt is rotatably connected to the interior of the adjusting plate. According to the mining ore conveying device, when the inclination angle of a transmission belt needs to be adjusted, a bolt is twisted firstly to be gradually away from an annular plate, a hydraulic rod is opened, the hydraulic rod drives a second clamping plate to move upwards, and the second clamping plate drives a support to rotate along the connecting position of a connecting plate and a supporting plate; the effect of adjusting the left side position of the transmission belt to move upwards is achieved, and the angle adjusting effect is achieved.

The invention relates to the technical field of reliability of power devices, and discloses an HTRB high-temperature reverse-bias test method, which comprises a test assembly arranged in a constant-temperature box, the test assembly comprises a first driving motor fixedly connected to the back of the constant-temperature box, the output end of the first driving motor is fixedly connected with a first output shaft, and the output end of the first output shaft is fixedly connected with a second output shaft. The outer wall of the first output shaft is rotatably connected with the inner wall of the constant-temperature box through a bearing, the first output shaft movably penetrates through the outer wall of the constant-temperature box and extends into the constant-temperature box, the other end of the first output shaft is fixedly connected with a rectangular frame, and the inner wall of the rectangular frame is slidably connected with a semiconductor device; the top of the rectangular frame is movably connected with a ventilation plate through a hinge, and through the arrangement of the test assembly, the semiconductor device can be uniformly heated by rotating the rectangular frame after the semiconductor device is fixed in the rectangular frame, so that a high-temperature reverse bias test is carried out.

The utility model relates to nursing instrument technical field, concretely discloses a portable nursing box, include: box, still include: first protective layer, first protective layer is located in the box inner chamber, first protective layer is connected with the box inner chamber sliding, the base plate fixedly connected with a plurality of connecting shell, the connecting shell inner chamber sliding is connected with the slide, the slide upper end middle part fixedly connected with the support rod, the support rod is connected with the connecting shell sliding, the support rod upper end fixedly connected with the connecting plate, the connecting plate upper end with first protective layer lower end fixed connection. Through being provided with first protective layer, thereby in the process can protect precision instrument, can prevent in the transportation, precision instrument and the inner wall of box collide, when nursing box is impacted, first protective layer slides in the box inner chamber, then first protective layer will drive the connecting plate to move down, then drive the second spring to contract through the connecting plate, thereby the second spring absorbs part energy through the elastic deformation, reduces the impact force peak value.

The utility model discloses a foot fixing device for medical imaging examination, which comprises a bed body, a two-way screw is rotatably connected inside the bed body, the outer end of the two-way screw is fixedly connected with a rotating handle, the two-way screw is in threaded connection with two threaded blocks, one end of the upper part of the bed body is provided with a slot, and the other end of the upper part of the bed body is fixedly connected with the rotating handle. By arranging a rotating handle, a two-way screw and the threaded block, the clamping assemblies on the upper portion can be driven to move relatively, so that the distance between the two clamping assemblies can be adjusted according to different patients, medical imaging examination is facilitated, the number of times of medical imaging examination is reduced, and the medical imaging examination efficiency is improved. The medical imaging examination efficiency is improved, medical imaging examination radiation is reduced, meanwhile, a driving motor, a lead screw and a threaded plate are arranged to drive a second arc-shaped plate to move downwards to be matched with a first arc-shaped plate to fix the feet of the patient, and the fixing effect of the whole device is improved.

The utility model relates to the technical field of communication equipment, in particular to a radio frequency communication terminal with a protection structure, which comprises a terminal body, four mounting holes are formed in the surface of the terminal body, a connecting plate is mounted on the lower surface of the terminal body, and four buffer rods are fixedly connected to one side, far away from the terminal body, of the connecting plate. The surfaces of the four buffer rods are sleeved with sleeve rods, the ends, away from the connecting plate, of the four buffer rods are fixedly connected with second springs, the other ends of the second springs are fixedly connected with the sleeve rods, a base plate is installed at the ends, away from the terminal body, of the sleeve rods, and four sliding grooves are formed in the side, close to the sleeve rods, of the base plate. According to the utility model, the problems that the radio frequency communication terminal usually adopts a direct installation mode, so that the radio frequency communication terminal is always in an exposed state, the radio frequency communication terminal is easy to collide accidentally, internal parts of the radio frequency communication terminal are impacted, and the use safety and the service life of the radio frequency communication terminal are influenced are solved.

This utility model discloses a biogas defoaming device, relating to the field of biogas treatment technology. It includes a defoaming tank, a balancing tank, and a water collection tank. A solid-liquid-gas separator is fixedly connected to the middle of the defoaming tank, and a spray pipe is located directly above the separator. An air inlet pipe and an air outlet pipe are connected to the top of the defoaming tank, with one end of the inlet pipe extending to the bottom of the tank. An overflow pipe is fixedly connected inside the balancing tank, which communicates with the bottom of the defoaming tank. The inlet of the water collection tank is connected to the overflow pipe, and the outlet of the water collection tank is connected to a liquid pump, the outlet of which is connected to the spray pipe. This biogas defoaming device can efficiently remove sludge particles and foam from biogas, reducing biogas pressure fluctuations.