116results about How to "Safe to use" patented technology

The invention relates to the technical field of batteries, in particular to a battery cell cover plate and a battery cell. The battery cell cover plate comprises a cover plate main body provided with a mounting hole; the pole column is arranged in the mounting hole, the pole column comprises a column body part and a first plate body part, the first plate body part is arranged at one end, facing the outside of the battery cell, of the pole column and is formed by outwards protruding the side wall of the column body part, and the distance between the side wall of the first plate body part and the side wall of the column body part is L; the distance between the side wall of the cylinder part and the hole wall of the mounting hole is M, and L is greater than M; and the first insulating part is clamped between the first plate body part and the cover plate main body. According to the invention, a riveting block structure in a traditional battery cell cover plate is canceled, so that the first plate body part on the pole directly crimps the first insulating part on the cover plate main body, thereby facilitating assembly and reducing cost; the occupied space and the weight of the cover plate are reduced, and the energy density of the battery cell is improved. In addition, L is limited to be larger than M, the situation that the pole falls off under the impact of external force is avoided, and therefore the safety performance of the battery cell cover plate is improved.

A multi-stage anti-impact energy absorption structure of a hydraulic column solves the problems of the existing anti-impact energy absorption mechanism of the hydraulic column, such as complex buffer structure, large space occupation, high manufacturing cost, limited impact energy that can be absorbed, inability to meet use requirements, large later maintenance workload, high maintenance cost, and long operation cycle for restoring tunnel support. It includes a multi-stage shear pressure column, characterized in that: a buffer energy absorption sleeve is provided at the lower part of the multi-stage shear pressure column, and the upper end opening of the inner cavity of the buffer energy absorption sleeve is plugged into the lower end of the multi-stage shear pressure column; a multi-stage anti-impact shear plate is fixedly provided in the inner cavity of the buffer energy absorption sleeve, and the multi-stage anti-impact shear plate is located below the multi-stage shear pressure column. It has a reasonable design and a compact structure, can realize multi-stage energy absorption buffering, can effectively absorb a large amount of impact energy, protect the structure of the hydraulic column, has good safety, is convenient for later maintenance, has a low production cost, and is flexible and reliable to use.

The invention discloses a detection method and measuring instrument for the center line of a static cooling rotary kiln cylinder. An adsorbed equal-diameter double-wheel level measuring instrument (14) is installed directly below each retaining wheel belt. The level measuring instrument is moved in the horizontal direction so that the electronic level (7) installed thereon displays ≤±0.001, and the precise position of the center point of the bottom of each wheel belt is quickly found; then a total station (4) is used to observe two square targets (5) at the head and tail positions in the vertical plane of the X-axis line, and at the same time, the total station is used to observe the center points of the circular targets (9) of the double-wheel level measuring instrument adsorbed by the bottom of two or three wheel belts, that is, the three-dimensional coordinate parameters of the center point of the bottom of each wheel belt are determined. The invention has a simple measurement principle and is easy to operate on site. It can be conveniently operated by ordinary technicians of a cement production company, and the measurement work can be completed quickly, accurately and reliably, and the measurement result of the kiln center line can be obtained immediately, saving measurement time and cost.

The invention discloses an isolator for a compact diaphragm pump and a manufacturing method, the isolator is characterized in that an inner cylinder is sequentially sleeved with a separation cylinder and an outer cylinder, the inner end of the outer cylinder is hermetically connected with the outer side surface of the inner cylinder, and the end part, close to the inner end of the inner cylinder, of the separation cylinder is sealed; a medium high-temperature channel, a medium medium-temperature channel and a medium low-temperature channel are communicated in sequence to form a zigzag cooling isolation channel; the length of the compact isolator for the diaphragm pump is shortened to about one third of that of an existing isolator, the compact isolator for the diaphragm pump is small in occupied area and convenient to install, and most of the inner barrel close to and communicated with the medium cavity is located in the isolator. The high-temperature medium in the medium high-temperature channel enables most of thermal expansion generated by the inner cylinder to be located in the isolator, large axial thermal expansion of the whole isolator cannot be caused, the high-temperature medium is mainly concentrated in the medium high-temperature channel formed in the inner side of the inner cylinder, the temperature of the outer side is low, and good use safety is achieved.

The invention relates to a urinary incontinence treatment rehabilitation instrument and a urine collecting device with the same, the urinary incontinence treatment rehabilitation instrument comprises a power generator, a wire and an electrode patch, the electrode patch is electrically connected with the power generator through the wire, and underpants in the urine collecting device comprise an underpants rear piece and an underpants front piece. The bottom of the underpants rear piece is fixedly connected with the bottom of the underpants front piece, the left side and the right side of the top end of the underpants rear piece extend forwards to form connecting belts, and the ends of the connecting belts are connected with the top end of the underpants front piece through hook-and-loop fasteners. A medical film is arranged on the periphery of the urine outlet hole in the face, facing the human body, of the underpants front piece; a urine receiving opening, a urine receiving cavity and a urine outlet on the urine receiver are communicated in sequence; urine storage tubes in the urine collection bag are sequentially folded and fixedly placed from top to bottom; the urine receiving device is fixedly connected to the underpants front piece of the underpants and located on the face, back to the human body, of the underpants front piece, and the urine outlet hole in the underpants is connected with the urine receiving opening in the urine receiving device. The food packaging box is more sanitary and safer.

The utility model discloses a support frame device of an optical tracking locator, which comprises an optical tracking locator and a vertical rod, and an adjusting mechanism is arranged on one side of the top of the vertical rod. The adjusting mechanism comprises a transverse sleeve fixedly connected with the end face of the vertical rod, a groove formed in the side edge of the transverse sleeve, a horizontal driving threaded rod rotationally arranged in the transverse sleeve, a movable circular ring in threaded connection with the outer surface of the horizontal driving threaded rod, and a connecting block fixedly connected with one side of the movable circular ring. The longitudinal sleeve is fixedly connected with the end, penetrating through the groove, of the connecting block, the square cavity is formed in the longitudinal sleeve, the longitudinal moving sleeve is arranged in the square cavity in a sliding mode, the moving square block is fixedly connected with the top end of the longitudinal moving sleeve, and the vertical driving threaded rod is in threaded connection with the middle of the moving square block. By arranging the adjusting mechanism, a user can conveniently adjust the transverse position and the longitudinal position of the optical tracking locator, so that the optical tracking locator is more convenient for the user to use.

The present application discloses a guard plate connector, an outer frame assembly and a photovoltaic tile, and relates to the technical field of photovoltaic tiles. The photovoltaic tile includes a photovoltaic panel and an outer frame assembly; the outer frame assembly includes at least three guard plate bodies, each of which is spliced ​​together to form an area for fixing the photovoltaic panel, and at least two adjacent guard plate bodies are connected by a guard plate connector; the guard plate connector includes two connecting arms, one end of the two connecting arms is connected to each other and forms an angle, and the other ends of the two connecting arms are respectively plugged into the plug-in cavities at the ends of the two guard plate bodies; at least one outer side wall of the connecting arm and / or at least one inner side wall of the plug-in cavity is protruding with a protrusion, and the protrusion is used to make the connecting arm and the corresponding two guard plate bodies form an equipotential body, and to increase the resistance to relative sliding between the connecting arm and the plug-in cavity. The guard plate connector, the outer frame assembly and the photovoltaic tile are easy to install, have high installation efficiency, and are highly safe to operate and use.

The invention provides a hydrogel fever cooling patch which comprises a hydrogel layer, a matrix layer and a hydrogel layer which are sequentially bonded from top to bottom, and the hydrogel layer is prepared from the following raw materials in percentage by weight: 0.5-3% of chondrus crispus (CHOWDRUS CRISPUS), 0.1-1% of potassium chloride, 0.1-1% of calcium chloride, 0.5-3% of a thickening agent, 5-30% of a humectant, 0.5-3% of a preservative, 0.4-0.8% of a pomelo sac extract and the balance of water. The sum of the weight percentages of the raw materials is 100%, and the sum of the weight percentages of the raw materials is 100%. The substrate layer is prepared from the following raw materials in percentage by weight: 1-10% of sodium polyacrylate, 0.01-0.5% of a chelating agent, 5-30% of a humectant, 0.1-1% of a cross-linking agent, 0.1-1% of a cross-linking regulator, 0.5-3% of a thickening agent, 0.5-3% of a preservative, 0.1-1% of thermochromic microcapsules and the balance of pure water, and the sum of the weight percentages of the raw materials is 100%. The invention further provides a preparation method of the hydrogel fever cooling patch. The hydrogel fever cooling patch provided by the invention has relatively good adhesiveness, stability, cooling performance and durability.

The present invention discloses a special pillow device for assisting sleeping sideways; it comprises a main pillow body and a fixing part A for fixing the main pillow body; the main pillow body has a bottom surface suitable for abutting against a bed surface, a slope surface suitable for resting the back of a human body, and a side surface suitable for being fixed with the fixing part A; the fixing part A is detachably connected to one side of the bed edge so as to limit and fix the main pillow body to the bed surface. Beneficial effect: the main pillow body is fixed by the fixing part A so as not to slip and to facilitate the back of a snoring person to rest on the side, so as to reliably assist the snoring person to maintain side sleeping, thereby making the present invention highly reliable to use, and thus, the present invention has a good use effect.

The utility model discloses leather base cloth for a noise reduction type foot pad, which comprises a polyurethane resin layer, a base cloth layer, a noise reduction layer and a non-slip mat layer, the polyurethane resin layer, the base cloth layer, the noise reduction layer and the non-slip mat layer are fixedly adhered in sequence from top to bottom, a plurality of sound absorption concave holes are arranged on the lower side surface of the noise reduction layer, and the noise reduction concave holes are communicated with the non-slip mat layer. Supporting cushion blocks are arranged in the sound absorption concave holes in a clearance fit mode, positioning protruding columns are arranged at the bottoms of the supporting cushion blocks, positioning holes are formed in the anti-skid cushion layer, and the positioning holes are matched with the positioning protruding columns in an inserted connection mode. A reinforcing structure and an anti-skid design are added, the problems that the sound insulation layer collapses and the foot pad slides after the foot pad made of leather base cloth is used for a long time are effectively solved, the technical performance and the safety of a product are improved, and better use experience and driving safety guarantee are provided for a user. According to the scheme, the multi-layer structural design is adopted, the durability of the whole foot pad can be improved, the service life can be prolonged, the replacement frequency is reduced, and the use cost is saved.

The utility model relates to the technical field of building components, in particular to a fabricated building damping component. According to the technical scheme, the connecting structure comprises a main body matching installation base made of metal materials, and a main body combination connecting groove which is provided with a downward opening and completely penetrates through the whole front-back direction is formed in the front face of the main body matching installation base. The connecting structure is characterized in that the left side and the right side of the main body combination connecting groove are each provided with a set of sliding limiting matching bosses; an integrally-formed conical combined stable safety column is arranged at the upper end of the main body matching installation base, and a fastening connection combined hole communicated with the main body combined connection groove is formed in the upper end of the main body matching installation base. The utility model has the advantages that the mounting position of the main body structure is integrated with a slide rail type mounting structure, sliding fit can be carried out during assembly, the operation during mounting is more convenient, the upper end position can be matched with building materials above to carry out staggered association fit by arranging the stable safety column, and the operation during mounting is easier.

This utility model provides a seat cushion structure and a shared vehicle, relating to the field of vehicle technology. The seat cushion structure includes a seat cushion assembly, a suspension, a shock absorber assembly, and an elastic protective structure. The suspension is connected to the seat cushion assembly; the shock absorber assembly is disposed between the seat cushion assembly and the suspension; and the elastic protective structure is sleeved on the shock absorber assembly. This utility model, through the cooperation of the seat cushion assembly, suspension, shock absorber assembly, and elastic protective structure, not only improves the shock absorption effect and enhances user comfort but also reduces the safety risks associated with exposed shock absorber components, resulting in better safety during use.

This application relates to the field of electrothermal materials, and in particular to a self-regulating heating cloth with low electromagnetic radiation. The self-regulating heating cloth with low electromagnetic radiation includes an insulating silicone protective layer and a base fabric. The base fabric is woven with several self-regulating heating wires, several first conductive strips, and two second conductive strips. The first and second conductive strips are both conductive composite yarns, which are composed of several conductive composite yarns, including S-twist conductive composite yarns and Z-twist conductive composite yarns, which are spaced apart to form the conductive composite yarn. The self-regulating heating cloth of this application has low electromagnetic radiation intensity and better safety performance.

The invention discloses a neurosurgery rehabilitation training device, and relates to the technical field of rehabilitation instruments. Comprising a traction connecting piece, a protection compensation piece is installed on the traction connecting piece, and the protection compensation piece is used for reducing the traction tension of a patient; a one-way positioning control piece is mounted on the traction connecting piece; the one-way positioning control piece is used for limiting the protection compensation piece; an elastic force training piece is mounted on the protection compensation piece; the elastic force training piece is used for traction training of a patient; a tension control piece is mounted on the elasticity training piece; the training intensity accuracy of a patient can be improved, strain of the patient can be prevented, the training intensity can be determined according to the traction force of the patient, automatic control is achieved, and training is safer and more scientific; the problems that when a Parkinson's disease patient is subjected to traction training through an existing neurosurgery rehabilitation training device, the patient cannot sense the training intensity conveniently, and excessive training is likely to be caused are solved.

The utility model discloses a biomass pyrolysis gasifier and belongs to gas fuel preparation equipment. A spiral auger type feeding shaft is rotatably and vertically mounted at the center of the upper end of a furnace shell assembly, a motor is fixedly mounted outside the top end of the furnace shell assembly, and the motor is connected with the upper end of the spiral auger type feeding shaft. A conical spiral involute-shaped elastic material supplementing disc is fixedly installed at the position, located above the fire grate assembly, of the lower end of the spiral auger type feeding shaft. Odd-numbered or even-numbered fire bars of the fire grate assembly are connected with a driving mechanism composed of a stepping motor, a driving wheel, a crank, a driving rod and a connecting rod. The electromagnetic heating coil is sleeved on the outer wall surface of the combustible gas metal output pipeline; the whole air supply pipe is in a spiral involute coil pipe shape. The furnace is novel, unique, simple and reasonable in structure, high in gas production efficiency, good in use safety and rapid and smooth in waste discharge.

The present invention belongs to the technical field of medical devices, and specifically relates to a hybrid braided stent. The hybrid braided stent includes a stent body, and the stent body is a single-layer structure. The stent body is a tubular structure formed by interlacing and weaving at least two filaments, and the end areas of at least two filaments are not exactly the same. The stent body of the hybrid braided stent of the present invention is formed by interlacing and weaving at least two filaments, and the end areas of at least two filaments are different. The filaments with larger end areas enable the stent body to have good supporting force, so as to fit closely with the blood vessels and achieve good positioning. The filaments with smaller end areas enable the mesh of the stent body to be smaller. After the stent body is installed in the blood vessel, the plaque is subjected to more uniform force and is not easy to break. Even if the plaque is broken, the stent body can effectively prevent the fragments of the plaque from flowing to the downstream of the blood vessel. In summary, compared with the prior art, the stent body of the present invention has better safety in use.

The invention provides a lithium ion battery and a power utilization device, and an electrolyte of the lithium ion battery comprises 12 wt%-18 wt% of LiPF6, 3 wt%-6 wt% of fluoroethylene carbonate, 0.1 wt%-0.5 wt% of vinylene carbonate, 0.5 wt%-1.5 wt% of lithium difluorophosphate, 0.4 wt%-0.8 wt% of a cyano-containing nitrile organic compound, and the balance of a solvent; wherein the total weight percentage of the nitrile organic compound and the lithium difluorophosphate is 1-2wt%, and the total weight percentage of the nitrile organic compound and the lithium difluorophosphate is 1-2wt% through a Fourier transform infrared spectroscopy test. The intensities IA and IB of characteristic absorption peaks centered on a wave number of 875-885 cm <-1 > and a wave number of 835-845 cm <-1 > and the intensities IC and ID of characteristic absorption peaks centered on a wave number of 725-735 cm <-1 > and a wave number of 710-720 cm <-1 > satisfy 5% < = IA / IB < = 25% and 25% < = IC / ID < = 50%. Through the improvement of the electrolyte composition of the lithium ion battery and the parameter limitation of a specific characteristic absorption peak in an infrared spectrum test, the cycle performance and the safety performance under a high-rate charging or discharging working condition can be obtained, the heating phenomenon of the battery is reduced, and the capacity fading of the battery is delayed.

The utility model discloses an independent omni-directional adjusting type doffing vehicle, and relates to the technical field of spinning cake conveying doffing vehicles. The device comprises a frame, installation crosspieces, a doffing rod, a supporting crosspiece and a flexible anti-collision frame, stand columns are fixed to the two corners of one short edge of the top of the frame, the two parallel installation crosspieces are fixed between the two stand columns, three equidistant installation plates are fixed to the side, close to the center in the frame, of each installation crosspiece, and the two ends of each installation plate are fixed to the flexible anti-collision frame. A doffing rod is fixed to the side, away from the mounting crosspiece, of each mounting plate, a supporting crosspiece is fixed to the position, corresponding to the limiting suspension, in the frame, and flexible anti-collision frames are fixed to the two ends of the frame. Through the arrangement of the frame, the mounting crosspieces, the doffing rods, the supporting crosspieces and the flexible anti-collision frame, the problems that the end height of the doffing vehicle and the overall inclination of the doffing rods are not easy to change in the working process of the doffing vehicle, and safety accidents are likely to happen when the doffing vehicle collides with personnel and facilities in the movement process are solved.

The application discloses a kind of multilayer sample pretreatment device and processing method, multilayer sample pretreatment device includes frame body, first shelf layer, second shelf layer and transfer unit, first shelf layer includes sequentially arranged several first warehouse storage sites, second shelf layer includes sequentially arranged code scanning position and several second warehouse storage sites, transfer unit is between code scanning position and second warehouse storage site, between first shelf layer and second shelf layer, second shelf layer and subsequent detection process, conveying unit between transfer sample frame.Sample pretreatment method, transfer unit preferentially transfers sample frame and test tube thereon between second shelf layer and subsequent detection process, recovery conveying unit.The application has reasonable structure, can adapt to large quantities of sample processing, conveying efficiency is high and degree of automation is high, and it is conducive to popularization and application.

The electric carrying vehicle comprises a vehicle body with idler wheels arranged at the bottom, a pallet fork connected to the front end of the vehicle body in a lifting mode and bearing wheels arranged at the front end of the pallet fork, lateral supporting mechanisms are arranged on the two sides of the vehicle body, each lateral supporting mechanism comprises a supporting seat, a sliding groove, a sliding block and a guide plate, the supporting seats are in a long strip shape extending in the vertical direction, and the sliding grooves are formed in the supporting seats. The supporting seat is detachably fixed to the side wall of a vehicle body, the sliding groove is formed in the middle of the supporting seat and extends in the vertical direction, the sliding block is embedded in the sliding groove in a vertical sliding mode, the guide plate is located on the outer side of the supporting seat, the upper end of the guide plate is connected with the sliding block, and the rotatable auxiliary wheel is arranged at the lower end of the guide plate. The lateral supporting mechanism further comprises a driving assembly used for driving the sliding block to slide up and down, when the driving assembly acts, the sliding block can be driven to slide downwards, the guide plate can move downwards, accordingly, the auxiliary wheels are supported on the supporting face, lateral supporting is formed for the truck body, and the electric truck is not prone to side tipping and good in use safety.

The invention relates to the field of vehicle-mounted transformers, and provides a vehicle-mounted traction transformer gas protection method, system, equipment and medium, and the method comprises the steps: monitoring the pressure and temperature of transformer oil in a transformer, and obtaining the state of a pressure relief valve; in response to the abnormal internal pressure, when the pressure relief valve triggers the protection action, a main circuit breaker tripping signal is generated, and the whole vehicle stops running; when the internal pressure is normal and the pressure relief valve does not trigger the protection action, the protection action is triggered according to the gas relay protection signal, and gas delay protection is carried out; and responding to temperature abnormity, starting temperature alarm, checking the state of the gas relay, and controlling the vehicle to run. According to the method, through reasonable cooperation of gas protection hardware parameter setting and protection logic, on the premise that internal faults of the transformer are quickly responded and isolated, and vehicle application safety is guaranteed, the reliability and application vitality of the whole vehicle and the traction transformer are further improved.

The utility model provides a handle and lock box transmission structure for an extremely narrow casement window, the handle comprises a base, a transmission handle and a transmission mechanism, the transmission mechanism comprises a wheel tooth and a shifting fork, one side of the shifting fork is provided with a rack, the rack is meshed with the wheel tooth, the lock box comprises a shell, a main transmission strip, an auxiliary transmission strip and the handle, and the transmission handle is arranged on the shell. The main transmission strip and the auxiliary transmission strip are oppositely arranged, the main transmission strip is meshed with the auxiliary transmission strip through a synchronous gear, and a plug pin matched with the shifting fork is arranged in the middle of the main transmission strip in an extending mode. The product is good in strength, long in service life and good in safety, is very suitable for being assembled on a casement window with a narrow visual surface, effectively simplifies the assembly structure, reduces the width of the casement window, reduces the manufacturing cost, and enables the casement window to be simple and fashionable.

The present invention relates to the application field of traditional Chinese medicine modernization, in particular to the application of a pepper extract in the preparation of a drug for treating skin diseases, and further the drug can also treat itching and pain caused by skin diseases such as herpes zoster pain, atopic dermatitis, eczema, neurodermatitis, senile skin pruritus, psoriasis and diabetic foot. Wherein, the post-herpetic pain includes pain, itching and / or pain, tactile hypersensitivity, etc. The pepper extract preferably obtained by supercritical extraction is pepper oil amine containing active ingredients such as pepper amide and pepper volatile oil, and its effect is significantly better than monomers such as hydroxy-α-sanshool, and is also significantly better than volatile oils extracted by steam distillation, or water, or ether, ethanol and other organic solvents. Extracts obtained by extracting, belonging to pure natural pepper extract components, are easily accepted by patients, and have a high compliance rate with medical advice, which can effectively solve the problem of lack of drugs specifically used for treating post-herpetic pain in the prior art.

The invention relates to the technical field of heating wire preparation, in particular to a heating wire and a preparation method thereof. A heating wire comprises a core wire, a self-temperature-limiting electric heating layer and a cable insulating layer, and the core wire is any one of a pure copper wire, a copper alloy wire, a nickel-plated copper wire, an aluminum alloy wire, an aluminum / copper / aluminum composite wire and a copper-plated aluminum alloy wire; the self-temperature-limiting electric heating layer is made of an electric heating material with an intelligent temperature control function; the cable insulating layer is any one of a PVC insulating layer, a TPU insulating layer and a TPEE insulating layer; and the conductivity rho 1 of the core wire is 75-102% IACS (International Annealed Copper Standard). Compared with an existing soft copper wire and an existing nickel-plated copper wire, the heating wire provided by the invention is relatively low in production cost and more excellent in use safety performance, meanwhile, the self-temperature-limiting electric heating layer emits far infrared rays for heating, the function of a shielding layer can be achieved, electromagnetic radiation generated by the core wire is greatly weakened, the overall production cost is reduced, and the service life of the heating wire is prolonged. And the lightweight design requirement is met.

The invention discloses a metallographic corrosive agent for a high-magnesium aluminum alloy and a metallographic preparation method, and relates to the technical field of metal material metallographic detection. The metallographic corrosive agent comprises a component A corrosive agent and a component B corrosive agent, the component A corrosive agent is composed of oxalic acid, nitric acid and water, and the component B corrosive agent is composed of HF, HCl, HNO3 and H2O. The problem that a traditional metallographic corrosive agent is poor in effect on the high-magnesium aluminum alloy, especially the high-magnesium aluminum alloy with the magnesium content exceeding 8% is solved, and the corrosive agent is simple in raw material, good in use safety, simple in corrosion process and short in corrosion time.

The utility model discloses a ball valve safe to use, which comprises a first valve body and a ball valve core, a positioning component is arranged at the upper end of the first valve body, and sealing components are arranged in a first connecting flange plate and a second connecting flange plate. The valve handle swinging to the right side anticlockwise or the left side anticlockwise by 90 degrees can be blocked and limited, excessive anticlockwise or clockwise swinging of the valve handle is avoided, a plurality of positioning through holes are formed at equal intervals, a positioning pin can conveniently position the valve handle swinging to different angles through an extension piece, and the positioning precision is improved. The valve handle is prevented from swinging when being accidentally touched, the limiting range is wide, the use safety is good, the sealing performance of the connecting position of the second connecting flange plate can be improved by installing a sealing ring and a first auxiliary sealing ring, and the sealing performance of the connecting position of the first connecting flange plate can be improved by installing a second auxiliary sealing ring.

The invention relates to the technical field of wall connecting structures, in particular to a music classroom wall connecting structure and a connecting method, the music classroom wall connecting structure comprises two mounting vertical beams, and a plurality of hanging rods are fixedly arranged between the two mounting vertical beams. According to the music classroom wall connecting structure and method, the annular teeth on the rotating shaft drive the telescopic blocks and the lower buckling teeth to retract into the through grooves, when the lower buckling teeth reach the upper sides of the stop levers, the release faces on the annular teeth break control over the telescopic blocks, the tension springs pull the telescopic blocks back, the lower buckling teeth are buckled on the stop levers from the upper sides to the lower sides, and the lower buckling teeth are released. Compared with existing hanging connection type installation, the external connection plate can be limited in the other direction through the opposite upper buckling teeth under the condition that hanging connection is achieved through the lower buckling teeth, it is guaranteed that the connection structure is in a closed-loop state, and therefore it is guaranteed that the external connection plate cannot fall off when pushed upwards; and the use safety is better.

The present invention discloses a neurosurgery rehabilitation training device, which relates to the technical field of rehabilitation equipment; it comprises a traction connection, on which a protection compensating part is installed, and the protection compensating part is used to reduce the pulling force of the patient; a one-way positioning control part is installed on the traction connection; the one-way positioning control part is used to limit the protection compensating part; an elastic training part is installed on the protection compensating part; the elastic training part is used for patient traction training; a tension control part is installed on the elastic training part; the intensity accuracy of the patient's training can be improved, the patient can be prevented from being strained, the training intensity can be determined according to the patient's pulling force, automatic control can be realized, and the training is safer and more scientific; so as to solve the problem that when Parkinson's patients are subjected to traction training with the current neurosurgery rehabilitation training device, the patients themselves are not convenient to perceive the training intensity, which easily leads to over-training.

The application discloses a large-mass heaven-side slider anti-falling self-locking mechanism in an injection mold, relates to the technical field of mold slider anti-falling, and has the technical scheme as follows: a front mold plate, an inclined guide column, a rear mold plate and a slider are included; stop blocks are embedded and fixed on the left and right sides of the slider on the rear mold plate; a clamping groove is arranged on the slider; a lock block is slidably connected to the clamping groove on the stop block; the lock block comprises a driving block and a lock tongue fixed on the driving block; the lock tongue can extend into the clamping groove; a supporting block is fixed on the stop block; a through groove is arranged through the supporting block and the driving block; a driving rod is slidably connected in the through groove; one end of the driving rod is fixedly connected with the front mold; and a guide driving part for driving the driving block to move towards or away from the clamping groove is arranged at the other end of the driving rod. The application adopts a mechanical component to rigidly lock and release, is not prone to failure, has good stability, can be applied to a large-mass heaven-side slider, and has good use safety.