57results about How to "Guaranteed pressing effect" patented technology

The invention relates to a judging method of an external chest compression strength and a full-automatic external defibrillator with compression energy calculation and rapid charging function. The judging method comprises the following steps of: setting a compression depth paste for acquiring compression pressure signals and compression depth signals, placing the compression depth paste in a compression position and compressing the compression depth paste; transmitting a compression pressure to a patient by using the compression depth paste; and calculating compression energy according to the pressure signals and the compression depth signals and then judging whether the compression strength is suitable or not according to the compression energy. The defibrillator comprises a main machine and the compression depth paste, wherein a central control circuit is installed in the main machine, and the compression depth paste is provided with a compression depth detecting module and a pressure detecting module. With the judging method, the external chest compression strength is better judged by using the compression energy as an index so that the judgment is more accurate, and the adaptation is stronger; and the defibrillator has the function of compression energy calculation and display, can effectively control the compression strength and can be effectively and rapidly charged.

A die base on a punching machine comprises a punching unit assembly and is characterized in that the punching unit assembly arranges dies in an array combination mode. The dies on the punching unit assembly are distributed towards the periphery with a punching power source as a center and arranged in an array combination mode. A die array is combined freely along a girder feeding direction or along a direction perpendicular to the girder feeding direction. The array combination type die base has the advantage of being compact in structural size, capable of reducing punching slanting bearing pressure, simple and stable in die selecting, good in material pressing effect and the like. By means of an automatic control system, stable punching core guarantee is provided for improvement of performance indexes such as nominal pressure, punching precision, production efficiency of an automobile girder numerical control punching production line.

The invention discloses an assembling tool for a valve locking block. The assembling tool comprises a bottom plate, a workpiece locating and supporting plate and a valve locking block press-fit assembly, and a cushion block is arranged on the workpiece locating and supporting plate. A valve press-fit assembly comprises a supporting frame, an exhaust valve locking block press-fit assembly and an intake valve locking block press-fit assembly, wherein the exhaust valve locking block press-fit assembly and the intake valve locking block press-fit assembly are fixedly arranged on the supporting frame. The exhaust valve locking block press-fit assembly and the intake valve locking block press-fit assembly are of the same structure and both comprise base sliding blocks, pressure head components and lever drive mechanisms. The pressure head components are in relative sliding fit with the base sliding blocks in the manner of being identical with valves on the corresponding side of an engine cylinder head on the aspect of an inclination degree. Pressure heads are identical with the valves on the corresponding side on the aspect of the inclination angle, so the tool can be prevented from interfering with other components and damaging the components due to pressing. In addition, the valves are jacked through a bottom cushion block arranged on the bottom plate, valve rods will not move, shake is avoided, the press-fit stability is guaranteed, and therefore the press-fit effect can be guaranteed.

The invention relates to the field of manufacturing and assembling equipment for automobile components and particularly discloses preassembling equipment for a button of an automobile control panel and a control method thereof. The preassembling equipment for the button of the automobile control panel comprises a machine table. The machine table comprises an engine base (7) and a support arrangedon the engine base (7). A first assembling table (10) and a second assembling table (20) are arranged on the engine base (7). The support is located in an installing area of the second assembling table (20). A press-fitting device (30) is arranged on the support. The invention further discloses a control method for the preassembling equipment for the button of the automobile control panel. The method comprises the steps of preparation, first preassembling, second preassembling and press fitting detection. By means of the preassembling equipment for the button of the automobile control panel and the control method, precise press fitting of the automobile panel and detection of the press fitting effect can be achieved; and the control method is simple and efficient.

The invention discloses a stable pressing cardiopulmonary resuscitation device for an emergency department, and belongs to the field of emergency equipment. The stable pressing cardiopulmonary resuscitation device for the emergency department comprises a back plate, a device core, a telescopic cylinder, a hollow lifting rod, a stable transverse rod, a sliding plate and a stable block, wherein thedevice core is connected to the back plate and comprises a stable frame, the stable frame is fixedly connected to the side wall of the device core; the telescopic cylinder is slidably connected to theside wall of the back plate; the hollow lifting rod is slidably arranged on the telescopic cylinder; the stable transverse rod is fixedly connected to the upper portion of the hollow lifting rod; thesliding plate is slidably connected in a sliding groove, the stable block is fixedly connected on the sliding plate. By inserting the stable block into the stable frame on the device core, the devicecore is stable and the pressing effect is ensured, meanwhile a second piston is pushed by a piston suction device, so that gases in a second gas-type fitting, an air hose, a first gas-type fitting are conveyed into the telescopic cylinder, and a movable shoulder stable plate is pressed on shoulders of patients. The device has stable effects on the patients, is convenient to press, and has great pressing effects.

The invention discloses a restoration device for angiogram. The restoration device comprises a U-shaped frame. An opening of the U-shaped frame faces the left side. A first fastening bolt is installedin the middle of the lower surface of the U-shaped frame. The upper end of the first fastening bolt penetrates and extends into a groove of the U-shaped frame. A rubber cushion is fixed to the top face of the groove of the U-shaped frame. The middle of the upper surface of the U-shaped frame is fixedly connected with the lower end of a first telescopic rod. A nurse adjusts the height of the firsttelescopic rod and adjusts the position of a slider on a slide rail, the position of a press block is convenient to adjust, and therefore the labor intensity of the nurse is reduced; a second telescopic rod and a spring are used in cooperation, the magnitude of the pressure exerted by the press block on a piercing part of a patient is stable, and the pressing effect of the press block on the piercing part of the patient is ensured; the nurse obtains the pressure exerted by the press block on the piercing part of the patient through scales on a side plate, and the restoration device for angiogram is convenient to adjust.

The invention provides an IGBT series crimping packaging unit and a DC circuit breaker with same. The IGBT series crimping packaging unit comprises a supporting frame and an IGBT valve string. The end of the IGBT valve string on the supporting frame is provided with a crimping stress cone. The supporting frame comprises a first flange plate which is next to the end of the crimping stress cone. The first flange plate is in threaded connection with a pressure adapter which forms a lead screw nut mechanism with the first flange plate. The pressure adapter is provided with a through hole for passing of a pushing rod of the crimping stress cone. The pressure adapter has a crimping end which matches the crimping stress cone. The IGBT series crimping packaging unit and the DC circuit breaker are advantageous in that the pressure adapter is in threaded fit with the first flange plate, thereby realizing precise inward movement of the IGBT series crimping packaging unit on the first flange plate through rotation of the pressure adapter until a clearance is precisely filled, thereby ensuring total consistency between an applied pressure and a kept pressure, realizing precise control on a crimping force, ensuring high crimping effect and improving crimping quality.

The invention discloses a postoperative nursing device for the cardiovascular department. The device comprises a mounting bracket, an auxiliary supporting assembly and a wound nursing assembly, wherein a sliding plate and a fixed jaw are arranged at the lower end of the mounting bracket; the auxiliary supporting assembly comprises a supporting back plate, an adjusting lead screw and a supporting rod; the supporting back plate is connected with the mounting bracket through a sliding block; the adjusting lead screw is clamped in the mounting bracket, and is provided with a moving block and a rotary gear; a rotating gear is arranged in the mounting bracket; the rotating gear is connected with the rotary gear; the supporting rod is used for connecting the moving block and the supporting back plate; the wound nursing assembly comprises a vertical frame, a limb fixing supporting plate, a wound nursing plate and a nursing plate adjusting mechanism; the limb fixing supporting plate is connected with the vertical frame; the nursing plate adjusting mechanism is arranged at the top end in the vertical frame; and the wound nursing plate is arranged at the bottom end of the nursing plate adjusting mechanism; the device is reasonable in structural design, flexible and convenient to adjust, high in reliability and suitable for large-scale popularization.

The invention relates to a transverse high-efficiency press fitting machine for an automotive heat dissipator. A left press fitting air cylinder is fixedly mounted on a left supporting plate, a left slide block is slidably mounted on a left press fitting mechanism mounting rack, and a left pressure block is fixedly mounted at the right end of the left slide block; a right press fitting air cylinder is fixedly mounted on a right supporting plate, a right slide block is slidably mounted on a right press fitting mechanism mounting rack, and a right pressure block is fixedly mounted at the right end of the right slide block; a front positioning air cylinder is fixedly mounted on a front positioning plate, a front positioning block is arranged on the end part of the front positioning air cylinder, a back positioning air cylinder is fixedly mounted on a back positioning plate, a back positioning block is arranged on the end part of the back positioning air cylinder, a top plate is horizontally mounted at the top end of the back positioning plate, an upper positioning air cylinder is fixedly mounted on the top plate, and an upper positioning block is arranged on the end part of the upperpositioning air cylinder. The transverse high-efficiency press fitting machine provided by the invention is scientific and reasonable in structural design, so that a core body of the heat dissipator is stably fixed, the press fitting precision of a blanking cap and the core body of the heat dissipator and the product quality are improved, and the core bodies of the heat dissipator of different sizes can be processed by press fitting, so that the transverse high-efficiency press fitting machine is wide in application range.

The invention discloses a chest pressing device for the cardiology department. The chest pressing device comprises a bed body, wherein sliding grooves are formed in the two sides of the top of the bedbody; sliding blocks are slidingly connected into the two sliding grooves; electric telescopic rods are fixedly installed on the groove walls of one sides of the two sliding grooves; the telescopic ends of the two electric telescopic rods are fixedly connected with one sides of the corresponding sliding blocks respectively; a U-shaped frame is fixedly installed at the tops of the two sliding blocks; and a fixing block is fixedly installed in the middle of the bottom of the U-shaped frame. According to the chest pressing device, an installed speed adjusting motor drives a rotating shaft to rotate, the rotating shaft rotates to drive a cam to rotate, the cam rotates to extrude a transverse plate to descend, a limiting spring installed in a first cavity drives the transverse plate to ascend,the transverse plate ascends and descends to drive a connecting rod to ascend and descend, the connecting rod ascends and descends to drive an arc-shaped pressing plate to ascend and descend, the chest of a patient is conveniently pressed, pressing of medical workers is replaced, and the pressing effect is guaranteed.

The invention discloses machining press fitting equipment provided with a structure capable of carrying out positioning and preventing abnormal movement. The equipment comprises an outer shell; a hydraulic cylinder is fixedly connected to the top of the outer shell; an intermediate driving assembly is rotationally connected behind the inner side of the outer shell; a driving slide assembly is in sliding connection with the inner side of the upper part of the outer shell; a group of rotating press plates are rotationally connected on the outer shell; a clamping operation assembly is rotationally connected with the inner side of the upper part of the outer shell; three clamping mounting blocks are in sliding connection with the inner side of the upper part of the outer shell in a circumferential array distribution manner; a clamp block is connected with the inner side of each clamping mounting block through two pairs of adjusting connecting rods; and an adjusting bolt is rotationally connected with the top of each clamping mounting block. According to the machining press fitting equipment provided with the structure capable of carrying out positioning and preventing abnormal movement, the press fitting effect is guaranteed, assembling quality is improved, meanwhile, clamping diameter can be rapidly adjusted by rotating the adjusting bolts, the adjustment is simple, the use is convenient, and the production efficiency is relatively high.

The invention discloses a multi-mode operated aldehyde removal device, and belongs to the field of aldehyde removal devices. The multi-mode operated aldehyde removal device comprises a device body, astorage structure, an extrusion structure, a pipe collection structure and a pipeline structure. The storage structure is arranged in the device body and is used for storing gas and liquid. The extrusion structure is mounted at the lower end of the device body and can intermittently extrude the storage structure to press out the gas and the liquid in the storage structure. Meanwhile, the extrusionstructure has a hand-operated extrusion operation mode and a foot-operated extrusion operation mode, and the extrusion structure can press the storage structure to continuously input gas into the storage structure and spray out gas or a formaldehyde removal agent in the storage structure. Dust blowing operation is conducted before the formaldehyde removal agent is sprayed to the surface of furniture, so that the formaldehyde removal effect is better. Meanwhile, the extrusion structure has a hand-operated extrusion mode and a foot-operated extrusion mode, a user can autonomously select and usethe device according to needs, and long-time operation is facilitated.

The invention discloses cardiopulmonary resuscitation equipment for medical rescue in an emergency department and belongs to the technical field of emergency equipment. The cardiopulmonary resuscitation equipment for medical rescue of the emergency department comprises a back plate and a machine core, wherein the machine core is connected to the back plate, and also comprises a stabilizing frame fixedly connected to the side wall of the machine core; a guide rail is fixedly connected to the side surface of the back plate; a first moving seat is slidably connected to the guide rail; a stabilizing cross rod is connected to the first moving seat and is provided with a chute; a sliding plate is slidably connected to the chute; a stabilizing block is fixedly connected to the sliding plate and is matched with the stabilizing frame. According to the equipment, the machine core is stable, the effect of pressing is ensured, in addition, a second moving seat moves in the same direction so that ashoulder steadying plate on a rotating shaft presses on shoulders of a patient, providing a stabilizing effect on the patient for easy press, the effect of pressing is good.

The invention relates to the technical field of battery detection, in particular to an energy storage battery electric quantity automatic detection table which comprises a detection table and a controller and further comprises a detection mechanism and a pressing mechanism, the pressing mechanism comprises a lifting plate, a driving assembly and three pressing assemblies, and the detection mechanism is arranged at the top of the detection table and used for detecting the electric quantity of a battery; the detection mechanism comprises a telescopic assembly, three electrifying assemblies and three testing assemblies, the telescopic assembly is arranged at the bottom of the detection table, the three electrifying assemblies are arranged at the top of the detection table at equal intervals, each testing assembly is arranged beside one electrifying assembly, and the driving assembly, each electrifying assembly and each testing assembly are electrically connected with the controller. The automatic detection table for the electric quantity of the energy storage battery can meet the detection of the electric quantity of batteries with different sizes, is high in practicability, can accurately detect the electric quantity of the battery, and is high in precision.

The invention provides an IGBT series crimping packaging unit and a DC circuit breaker with same. The IGBT series crimping packaging unit comprises a supporting frame and an IGBT valve string. The end of the IGBT valve string on the supporting frame is provided with a crimping stress cone. The supporting frame comprises a first flange plate which is next to the end of the crimping stress cone. The first flange plate is in threaded connection with a pressure adapter which forms a lead screw nut mechanism with the first flange plate. The pressure adapter is provided with a through hole for passing of a pushing rod of the crimping stress cone. The pressure adapter has a crimping end which matches the crimping stress cone. The IGBT series crimping packaging unit and the DC circuit breaker are advantageous in that the pressure adapter is in threaded fit with the first flange plate, thereby realizing precise inward movement of the IGBT series crimping packaging unit on the first flange plate through rotation of the pressure adapter until a clearance is precisely filled, thereby ensuring total consistency between an applied pressure and a kept pressure, realizing precise control on a crimping force, ensuring high crimping effect and improving crimping quality.

The invention relates to the technical field of chip packaging and aims to solve a problem that, in a chip packaging and testing process, when a separation device is used for realizing the separationof a chip and a blue film, when the chip moves upwards, the blue film is driven to move upwards. The chip packaging and testing method comprises a wafer thinning step, a wafer cutting step, a chip mounting step, a chip interconnection step, a forming step and a testing step, and is characterized in that the chip mounting step comprises the following steps that a pickup plate descends so that a suction nozzle on the pickup plate abuts against a to-be-packaged chip, and pressing blocks located at two ends of the suction nozzle press chips at two ends of the to-be-packaged chip at the same time;after the suction nozzle sucks the chip to be packaged, the pickup plate moves upwards and moves to a position above a corresponding mounting position on the packaging substrate; and S4, the pickup plate descends, the to-be-packaged chip is in contact with the mounting position, and meanwhile, the pressing blocks press the chips mounted at two ends of the mounting position.

The invention provides a cardiopulmonary resuscitation pressing system, a cardiopulmonary resuscitation apparatus and a medical rack. Cardiopulmonary resuscitation press system comprises a control system and a press strap. In that use state, the control system is fixed on the back of the patient through the press strap, and the press strap is positioned on the front of the patient's chest. The control system comprises a tension device and a control device, wherein the pressing strap is connected with the tension device, and the control device controls the tension device to apply a tension force to the pressing strap; as compare with that prior art, the control system comprises a tension device and a control device, wherein the press strap is connected with the tension device, and the control device controls the tension device to apply a tension force to the pressing strap, so that the press frequency and the tension force can be adjusted. Further, the medical rack may enable componentsfor the cardiopulmonary resuscitation pressing system to be disposed under the patient, facilitating outdoor use, and making the use of the patient more effective. Further, a cardiopulmonary resuscitation apparatus including a cardiopulmonary resuscitation pressing system is convenient and practical.

The invention discloses an infusion pressurizing hemostatic patch. The hemostatic patch comprises adhesive tape, one side adhered to the skin of the adhesive tape is a mucilage layer, the mucilage layer is provided with an elastic pressurizing block, the elastic pressurizing block is provided with a sterilization anti-inflammatory block for contacting the infusion wound, and the surfaces of the mucilage layer, the elastic pressurizing block and the sterilization anti-inflammatory block are covered by a release paper. The above-mentioned infusion pressurizing hemostatic patch is provided with the elastic pressurizing block between a tape and a hemostatic block of a traditional hemostatic patch, and the sterilization anti-inflammatory block is pressed at the infusion wound by the elasticityof the elastic pressurizing block or even by external auxiliary pressing, thereby effectively preventing bleeding, reducing bruising, improving healing speed and ensuring the pressing effect. The patient can also easily complete the operation, the hands of patients or medical staff are liberated, and the effect of stopping bleeding is obvious.

The invention provides a novel paper board stack pressing mechanism. The mechanism comprises a paper board supporting mechanism, a discharging belt subassembly, a front and back adjusting mechanism, an up and down adjusting mechanism, a transverse adjusting mechanism and a paper board pressing belt subassembly, wherein the paper board pressing belt subassembly is positioned above the discharging belt subassembly; and the paper board pressing belt subassembly is driven by the front and back adjusting mechanism, the up and down adjusting mechanism and the transverse adjusting mechanism to move.According to the novel paper board stack pressing mechanism, the front and back adjusting mechanism, the up and down adjusting mechanism and the transverse adjusting mechanism are arranged to adjust the paper board pressing belt subassembly in the front-back direction, the upper-down direction and the left-right direction at any time based on the position of a paper board stack as well as the sizes of paper boards, so that the problem of paper board inclination caused by non-uniform pressure at the left and right can be effectively prevented; the problem of paper board reverse due to speed difference between upper and lower paper boards can be effectively prevented; the paper board stack can be kept in ideal uniformity during being pushed out and conveyed, and thus the paper board pressing effect can be effectively ensured.

The invention discloses an assembling tool for a valve locking block. The assembling tool comprises a bottom plate, a workpiece locating and supporting plate and a valve locking block press-fit assembly, and a cushion block is arranged on the workpiece locating and supporting plate. A valve press-fit assembly comprises a supporting frame, an exhaust valve locking block press-fit assembly and an intake valve locking block press-fit assembly, wherein the exhaust valve locking block press-fit assembly and the intake valve locking block press-fit assembly are fixedly arranged on the supporting frame. The exhaust valve locking block press-fit assembly and the intake valve locking block press-fit assembly are of the same structure and both comprise base sliding blocks, pressure head components and lever drive mechanisms. The pressure head components are in relative sliding fit with the base sliding blocks in the manner of being identical with valves on the corresponding side of an engine cylinder head on the aspect of an inclination degree. Pressure heads are identical with the valves on the corresponding side on the aspect of the inclination angle, so the tool can be prevented from interfering with other components and damaging the components due to pressing. In addition, the valves are jacked through a bottom cushion block arranged on the bottom plate, valve rods will not move, shake is avoided, the press-fit stability is guaranteed, and therefore the press-fit effect can be guaranteed.

The invention discloses a pressurizing hemostatic patch for transfusion. The pressurizing hemostatic patch for transfusion comprises a medical adhesive tape, a sterilization anti-inflammatory block and a pressurizing device, wherein the pressurizing device comprises a pressurizing plate, a pressure relief plate and a resetting piece; the pressurizing plate and the pressure releasing plate are locked through a lock structure and are relatively static; the resetting piece is clamped between the pressurizing plate and the pressure releasing plate; the sterilization anti-inflammation block is arranged on the outer side of the pressurizing plate and abuts against a bleeding opening of a part to receive hemostasis; the medical adhesive tape is pasted on the outer side of the pressure relief plate and pasted on the part to receive hemostasis; and after the lock structure is unlocked, the resetting piece expands the relative distance between the pressurizing plate and the pressure relief plate, so the sterilization anti-inflammation block is provided with continuous pressing force which is applied to the bleeding opening. According to the pressurizing hemostatic patch for transfusion, thepressurizing device capable of storing energy is bound to the sterilizing anti-inflammatory block, and the pressurizing device is unlocked to generate extrusion force on the sterilizing anti-inflammatory block, so the sterilizing anti-inflammatory block is pressed at a transfusion wound; and therefore, bleeding is effectively prevented, bruise is reduced, the safety of a patient is protected, a healing speed is increased, a pressing effect can be guaranteed, and a hemostatic effect is obvious.

The invention relates to the technical field of food processing, in particular to a salted fish automatic processing device. The salted fish automatic processing device comprises conveying devices, afixing frame, fixing clips, a cylinder, an injection device, a hollow rotating shaft and an infusion pipe. The two conveying devices are arranged in parallel in the fixing frame, and the plurality ofsets of fixing clips are symmetrically arranged on the two parallel conveying devices through cylinders. Two side walls of the fixing frame are symmetrically provided with a rectangular groove, and the upper end of the rectangular groove is provided with a through cavity. The upper end and the lower end of the injection device are respectively arranged in the rectangular grooves through the hollowrotating shaft and a rotating shaft in the rotating mode. One end of the infusion pipe is connected to a high-pressure water pump, and the other end is arranged in the hollow rotating shaft through the through cavity. The uninterrupted rolling injection is adopted to overcome the defects of intermittent stop and damage to fish meat by the effect of the force between a needle and the fresh fish while ensuring uniform injection. The working efficiency is improved, the needle can effectively enter and exit a fish body, and the integrity of the fish is not destroyed.

The invention discloses a press fitting device for assembling a semiconductor element. The press fitting device comprises a carrying table, a press fitting box is arranged at the top of the carrying table; a press fitting plate for storing the semiconductor element is arranged in the press fitting box; a plurality of accommodating grooves are formed in the press fitting plate; an overturning assembly for driving the press fitting plate to overturn is arranged in the press fitting box; and buffering assemblies used for buffering the press fitting plate are symmetrically arranged on the two sides of the bottom of the overturning assembly. According to the press fitting device, the press fitting box and a press fitting assembly are arranged, a press fitting roller on the press fitting assembly is matched with the press fitting plate on the press fitting box, and then a cooling fin is effectively pressed to the semiconductor element; and the buffering assemblies are arranged at the bottom of the press fitting plate, buffering springs on the buffering assemblies buffer pressure applied by the press fitting roller, and the damage of the semiconductor element caused by overlarge pressure is avoided, so that the press fitting effect is ensured, meanwhile, the situation that the stress of the semiconductor element is inconsistent due to manual press fitting and the semiconductor element is pressed and damaged is avoided, and the working efficiency is improved.

The invention discloses a cardiopulmonary resuscitation device for medical rescue in an emergency department, which belongs to the field of first aid devices. A cardiopulmonary resuscitation device for medical rescue in emergency department, comprising a backboard and a movement, the movement is connected to the backboard, and also includes a stable frame, fixedly connected to the side wall of the movement; guide rails, fixedly connected to the backboard Side; the first moving seat, slidably connected to the guide rail; the stable cross bar, connected to the first mobile seat, and a chute is opened on the stable cross bar; the slide plate, slidably connected in the chute; the stable block, fixed Connected on the slide plate and adapted to the stable frame; the present invention stabilizes the movement to ensure the pressing effect, and moves the second moving seat at the same time so that the shoulder stabilizing plate on the rotating shaft is pressed against the patient's shoulder, which is beneficial to the patient. Performs a stabilizing effect, is easy to press, and has a good pressing effect.

The invention discloses a stamping die and a balance block component thereof. The balance block component comprises a lower balance block arranged on a blank holder and an upper balance block arranged on the lower balance block in a sliding mode, a guide structure and a locating structure are arranged between the upper balance block and lower balance block, the upper balance block is arranged at the lower balance block in a sliding mode along the guide structure, and the upper balance block is fixed at a preset position through the locating structure. By means of the sliding of the upper balance block relative to the lower balance block, the position of the upper balance block on the blank holder can be regulated according to the actual use requirements, the fine position adjustment for the working part of the balance block component is realized, the mounting position of the upper balance block can be regulated according to the use requirements, and the material press effect is guaranteed.

The invention discloses a rail vehicle positioning joint press fitting device which comprises a press fitting table. The press fitting table is arranged on a mobile trolley, the press fitting table isdriven by a lifting device to ascend and descend, and the press fitting table is provided with a positioning groove used for positioning a gland and a shaft box body, the two sides, corresponding tothe positioning groove, of the press fitting table are correspondingly provided with a vertical positioning column and a pushing press fitting device, and the pushing press fitting device comprises apushing rod and a first driving device for driving the pushing rod to press the positioning column. Compared with the prior art, the rail vehicle positioning joint press fitting device can conduct replacement and press fitting of positioning joints without lifting the shaft box body, direct replacement can be achieved even under the condition that the shaft box body is installed on a rail vehicle,the step of disassembling the shaft box body is omitted, a worker can conveniently operate the device, and the press fitting efficiency of the positioning joints is improved; and secondly, offset ofthe gland and a positioning rotary arm during the press fitting process can be avoided, pre-deflection stress cannot be generated after press fitting of the positioning joints, the press fitting effect is guaranteed, and the running of the rail vehicle is ensured.

The invention discloses a necking and blank pressing device for a vacuum cup. The necking and blank pressing device comprises a mounting plate (1), wherein a downward pressing assembly (2) capable ofvertically lifting and a lifting driving part (3) for driving the downward pressing assembly to lift are arranged on the mounting plate; the downward pressing assembly comprises a downward pressing mounting seat (21), a downward pressing shaft (22), a downward pressing arm (23), a downward pressing head (24) and a rotary driving part (25); the downward pressing shaft is rotatably mounted on the downward pressing mounting seat; the upper end of the downward pressing shaft is fixedly connected with the downward pressing arm (23); the downward pressing head (24) is rotatably mounted below the endpart of the downward pressing arm (23); the rotation axes of the downward pressing shaft (22) and the downward pressing head are parallel to the vertical direction; and the rotary driving part (25) is mounted between the downward pressing mounting seat and the downward pressing shaft to drive the downward pressing shaft to rotate. According to the necking and blank pressing device disclosed by the invention, blank pressing is carried out in a rotary and backward pressing manner; the stroke of the lifting driving part can be relatively small and the movement time can be greatly shortened, so that the blank pressing time is shortened and the working efficiency of necking the vacuum cup is improved.

The invention belongs to the field of electroencephalogram monitoring, and provides a continuous electroencephalogram monitoring and feedback system for a cardio-pulmonary resuscitation instrument and a working method thereof. Wherein the system comprises: an electroencephalogram signal monitoring module for monitoring electroencephalogram signals of a patient in real time; an electroencephalogram signal analysis module for judging pressing quality based on the upper and lower boundary amplitude values of the real-time electroencephalogram signals and feeding back the pressing quality to the cardio-pulmonary resuscitation instrument, so that the cardio-pulmonary resuscitation instrument performs repeated pressing in a pressing quality-set state; and a pressing parameter monitoring module for judging a pressing effect and feeding back the pressing effect to the cardio-pulmonary resuscitation instrument by comparing pressing parameters with a set threshold value on the basis of the real-time pressing parameters, thus guaranteeing the pressing effect.