285results about How to "Uniform and stable force" patented technology

The invention discloses a pressure-control type electric pressure cooker. A sealed body is formed by sequentially connecting a pot cover, a seal ring, an inner pot and an outer pot; a plurality of belleville springs, which are provided with opening grooves, are arranged between a heating plate and the outer pot; upper supporting rings are formed by horizontally flanging the small-diameter ends of the belleville springs towards inner sides, and lower supporting rings are formed by the big-diameter ends of the belleville springs; an elastic deformation area is formed by a conical wall parts between each of the upper supporting rings and each of the lower supporting rings; the elastic deformation areas penetrate through the upper supporting rings in a radial direction and extend to conical body parts, and the opening grooves that contour lines projected on a horizontal plane are in a cross form are formed; the opening grooves are of gradually expanded structures with upsides smaller than downsides from openings to bottoms; the lower supporting rings are supported on the bottom of the outer pot; the upper supporting rings are propped against supporting legs of the heating plate; and the supporting legs and the belleville springs are integrally positioned with and connected to the outer pot by virtue of fixed screws. The amount of elastic deformation of the electric pressure cooker is effectively improved by virtue of the belleville springs, and the change in induction pressure of a pressure detection device is more conveniently to be detected, so that the precision and the safety stability of pressure control are improved.

A rebar tying machine comprising a tying machine main body (1) and a steel wire winding assembly (2) mounted in the main body, a steel wire cutting off mechanism (3) is further mounted in the main body and comprises a transmission device (31) and a wire discharging block (32), the steel wire winding assembly comprises a winding mechanism (21), a driving device (22) for driving the winding mechanism and a locking device for locking the winding mechanism, an advance / retreat locating slot (211) and a rotating cam slot which are communicated with each other are arranged on the winding mechanism, an anti-rotation fixing pin (231) in the locking device moves axially in the advance / retreat locating slot, and the anti-rotation fixed pin slides in the rotating cam slot along the circumferential direction. The rebar tying machine has the advantageous effect that: the anti-rotation fixed pin moves axially in the advance / retreat locating slot and slides in the rotating cam slot along the circumferential direction, and the sidewall of the rotating cam slot extends along the axial direction of a sleeve (216) to form a chamfer structure, thus preventing the tying machine from locking and further ensuring the working smoothness of the winding mechanism.

The invention discloses a Pico / Nano satellite and rocket fixing and separating device. The Pico / Nano satellite and rocket fixing and separating device comprises a bottom plate. Satellite supporting bases, pull rods, pull rod cut-off mechanisms and satellite popping mechanisms are fixed to the bottom plate. At least one pair of satellite supporting bases is arranged. Any one pair of satellite supporting bases is oppositely arranged in pairs. At least one pair of pull rods is arranged. Each pair of pull rods is installed in any one pair of satellite supporting bases respectively. Each pull rod stretches out of a satellite supporting face of the corresponding satellite supporting base to be connected with a satellite and presses the satellite on the satellite supporting face. According to the Pico / Nano satellite and rocket fixing and separating device, when the satellite and the bottom plate are connected, pull force and pressure exerted on the bottom plate are exerted on the same straight line, and therefore the interaction force between the bottom plate and the satellite is reasonably distributed, the integral structure is simple and stable, meanwhile, installing is convenient, and the manufacturing cost is low.

The invention discloses a well drilling method and device through hydraulic power and disc spring coupling driving and axial vibration. By means of the method and device, axial impact vibration can be uniformly applied to a drill bit or a pipe column in the welling drilling process. According to the technical scheme, the device is mainly composed of a body, a pulse generating device and an axial vibration device; the pulse generating device is composed of a guiding object, an impeller seat, impellers and a vibration nozzle; the axial vibration device is composed of a pressure stressed face, a piston portion, a central rod and a disc spring portion; the piston portion is composed of a piston bush, an oil seal and a piston; the disc spring portion is composed of a disc spring upper pressing sleeve, a disc spring adjusting sleeve, a disc spring protecting sleeve, a disc spring set, a disc spring core bar and a disc spring seat. Compared with other well drilling tools, by means of the well drilling method and device, stable and uniform axial vibration can be generated, and frictional resistance generated by 'pressure supporting' in a horizontal well is lowered; when the device is installed between a drill collar and a drill bit, stable and uniform axial force can be provided for the drill bit, and well drilling efficiency is improved.

The invention relates to a blade tenon tooth milling clamp which is used for clamping a blade. The blade tenon tooth milling clamp is fixed on the processing platform of a blade tenon tooth processing machine tool and comprises a baseplate arranged on the processing platform; a blade top clamping device for positioning a blade top and a blade root clamping device for positioning a blade root are arranged on the baseplate; an oblique slide seat arranged at the lower end of a cantilever bow rack is fixed on the baseplate, and the upper end surface of the oblique slide seat is inclined; a positioning block for lengthwise positioning a blade shoulder is arranged in the middle of the oblique slide seat; a first oblique slide block and a second oblique slide block are arranged on two sides of the positioning block respectively and are used for positioning tenon teeth; the first oblique slide block and the second oblique slide block can slide and be fixed along the upper end surface of the oblique slide seat. With the structure, the blade tenon tooth milling clamp has the advantages that the slide blocks on the baseplate can be moved and fixed along the oblique slide seat, so that the lower parts of the tenon teeth are prevented from suspending in the air but are support tightly, and the tenon teeth are stressed uniformly and stably; fixed-pitch positioning blocks are arranged in the longitudinal direction at two ends of the blade and the blade is finely adjusted and propped by two centres and locked by bolts so as to meet the requirements for dimension consistency and position symmetry when the blade is overturned and processed.

A power drawer device with a noise reduction function comprises a frame (9) and a drawer assembly (8); two lower sides of the drawer assembly (8) are provided with rollers (81); the rollers are matched with transverse guide rails (92), arranged below a contain cavity (91) used for containing the drawer assembly (8) on the frame (9), so as to allow the drawer assembly (8) to enter / exit the contain cavity (91); transverse battens (41) are fixed below the transverse guide rails (92) in the frame (9), and provided with a driving slide piece assembly (7) comprising two support arm plates (731, 732) arranged on the left and right.

The invention provides a glass substrate cutting system. The glass substrate cutting system comprises an upstream suction platform, a movable device, an upper cutter head and a lower cutter head, wherein a downstream suction platform is arranged in front of the upstream suction platform at interval and is used for receiving a finished-product part cut from a glass substrate; the movable device is used for pushing the glass substrate to move from the upstream suction platform to the downstream suction platform; the upper cutter head and the lower cutter head are arranged between the upstream suction platform and the downstream suction platform. The glass substrate cutting system further comprises an unloading device arranged between the upstream suction platform and the downstream suction platform; the unloading device comprises a vacuum pump, a suction plate provided with a through hole, and a displacement component connected with the suction plate, wherein the bottom of the suction plate is connected with an adsorption cavity; the adsorption cavity is respectively communicated with the through hole and the vacuum pump so that a residual material part placed on the surface of the suction plate is adsorbed on the suction plate; and the displacement component is used for driving the suction plate adsorbed with the residual material part to rotate, so as to remove the residual material part. According to the glass substrate cutting system, the scratches of a cutting face of the glass substrate cutting system can be effectively avoided and the quality of a cut finished-product is improved.

The invention relates to a three-roller multi-wire cutting machine used for cutting a wafer. The three-roller multi-wire cutting machine comprises two cutting rollers and one auxiliary cutting roller, wherein the two cutting rollers are arranged in a cutting chamber in parallel; the auxiliary cutting roller is arranged at or above the symmetric center of the two cutting rollers; each included angle alpha, which is formed between each of the two cutting lines at two sides of the auxiliary cutting roller and a plane in which the axis of the two cutting rollers are located, is 0-30 degrees; two operating platforms and two feeding systems are arranged; the operating platforms and the feeding systems are symmetrically arranged; and the straight guide rails of the two feeding systems are respectively vertical to the cutting lines at the two sides of the auxiliary cutting roller. The three-roller multi-wire cutting machine can be used for cutting two polycrystalline silicon rods at the same time. Besides, the cutting quality is stable, the machine volume is small, the cost is low, the efficiency is high, and the cutting production cost is lowered.

The invention discloses a multi-function combination lifting device for a minisatellite, comprising a triangular special-shaped lifting unit (1) at the upper portion and three straight beam lifting units (2) at the lower portion, wherein the triangular special-shaped lifting unit (1) comprises a three-leg combination lifting belt (3), a shackle (4), a large connection block (5), a pin roll (6) and a triangular beam (7); the straight beam lifting unit comprises a lifting belt (8), a small shackle (14), a small connection block (9), a beam (10), a small lifting belt (11), six turn buckles (12) and six quick-release stop pins (13); and the triangular special-shaped lifting unit (1) is connected with each straight beam lifting unit through the shackle (4). According to the invention, by combining the triangular special-shaped lifting unit with the three straight beam lifting units, the problem of lifting a minisatellite with six lifting points and six prisms is solved; simultaneously, the triangular special-shaped lifting unit has a stable triangular structure, thus the adaptive ability is strong, and uniform stress distribution of the six lifting points can be realized without adjusting the level of the minisatellite.

The invention discloses a railway down-traversing highway tunnel double-layer casing pipe reinforcement double-pipe shed follow-pipe drilling construction method. The method comprises the following steps that construction preparation is made, wherein existing tunnel defects are surveyed; secondly, advance geology forecast is conducted; double-layer pipe shed advance pre-reinforcement is conducted, wherein the double-layer pipe shed advance pre-reinforcement is adopted, a follow-pipe drilling method is adopted in construction, each segment of a single-hole steel pipe is installed after being drilled by one segment, after each hole is formed, the hole can be grouted immediately, drilling gaps are filled, and a periphery surrounding rock is reinforced; fourthly, excavating and supporting are conducted, wherein excavating is conducted through a double-side-wall drift heading technology, a fracture full ring is excavated, and double layers of supports of a structural steel frame and a grid steel frame are arranged; fifthly, secondary lining is conducted, wherein a curved wall composite lining with an inverted arch is adopted; and sixthly, construction is finished, and monitoring and measuring are conducted. According to the construction method, the excavation technology is reasonably selected, the effective advance reinforcing measure is taken, and the tunnel down-traversing construction is stably and safely finished.

The invention relates to a spinal orthosis which comprises a fixing garment, a chest strap, a waistband, an airbag inflation device, a rubber pipe and a plurality of rigid material sections, wherein the fixing garment is positioned above the chest strap; the chest strap is positioned above the waistband; the fixing garment, the chest strap and the waistband are fixed by virtue of a fixing garment locking device; the plurality of rigid material sections are stuffed into the rubber pipe 7 by sections; the rubber pipe is fixedly arranged at the rear sides of the fixing garment, the chest strap and the waistband by virtue of fixing buckles; the airbag inflation device is sewn at the fixing garment and the waistband in a crossed manner by virtue of airbag fixing straps; the airbag inflation device is clung to the fixing garment, the chest strap and the waistband by virtue of flexible straps. The spinal orthosis provided by the invention is convenient to wear, high in comfort, high in adjustability, high in stability and controllable in correction intensity; by virtue of the spinal orthosis, muscles can be stretched, meridians are stimulated, the correction progress is controlled more conveniently, and the correction effect is improved.

The invention discloses an integral-type settlement plate installation device of soil mass layered settlement monitoring equipment. The integral-type settlement plate installation device of the soil mass layered settlement monitoring equipment comprises a guide pipe (1) and a plurality of settlement plates (2), wherein a bearing supporting plate (3) is arranged on each settlement plate (2), a guide hole (4) is formed in each bearing supporting plate (3), a plug pin (5) is arranged inside each guide hole (4) in a sliding matched mode, and the length of each plug pin (5) is smaller than the depth of each guide hole (4). An air bag (6) is fixed on the outer wall of the guide pipe (1), a plurality of layers of jacking rods (8) are fixed on the air bag (6), the jacking rods (8) are as high as the bearing supporting plates (3) one to one, a plurality of passing holes (11) are formed in an outer sleeve barrel (9), and the outer end of each jacking rod (8) of each layer penetrates each passing hole (11) of the outer sleeve barrel (9), and is inserted into the inner end of the guide hole (4) of the bearing supporting plate (3) of the same height. The integral-type settlement plate installation device of the soil mass layered settlement monitoring equipment enables the settlement plates (2) to be accurately, conveniently and reliably installed on the hole wall of a measuring hole.

The invention discloses a constant volume type undisturbed soil strong collector and a using method thereof. The constant volume type undisturbed soil strong collector comprises a T-shaped lead screw, a pipe body (7) and a top anvil (4), wherein the top anvil (4) and the pipe body (7) are in multi-thread connection; the T-shaped lead screw consists of a handle (1) and a screw rod (2); the screw rod (2) on the T-shaped lead screw is in threaded connection with an internal screw hole (56) in the top anvil (4); a piston is arranged in the pipe body (7); the lower end of the pipe body (7) is connected with a drill bit (13). The collector adopts a split design, and each part can be flexibly detached and assembled, so that each functional part is conveniently intensified, a soil sample is conveniently collected and unloaded, the collector is particularly suitable for collecting samples containing gravelly soil, and the whole equipment is light, durable in use and easy to maintain. Moreover, the problems that the sampler is easily damaged when meeting gravels, the sample is difficultly unloaded and the original soil structure is difficultly kept in the sampling process in the prior art can be effectively solved.

The invention discloses a construction method for changing a support of a foundation pit at an irregular place of a rampway, and the construction method comprises the following steps of (1) setting supporting piles on the outer circumferential direction of a rampway irregular place, placing an inner support system on the inner side of each supporting pile, and digging a foundation pit; (2) paving a rampway irregular-place soleplate inside the foundation pit, and building an inner wall and an outer wall on two sides of the rampway irregular-place soleplate; (3) backfilling between the supporting piles and the outer wall; (4) respectively binding two ends of a reinforced steel bar of a rampway roof beam with sliding ribs which are reserved on the inner wall and the outer wall; (5) respectively joining two ends of a reinforced steel bar of a support changing beam with the inner wall and the outer wall; (6) pouring the support changing beam concrete; (7) disassembling the inner suppot system; and (8) continuously binding the reinforced steel bar of the rampway roof beam and the reinforced steel bars of the inner wall and the outer wall of the rampway, and then binding the reinforced steel bar of the rampway roof so as to make the reinforced steel bar of the rampway roof connected with the reinforced steel bar of the rampway roof beam and the reinforced steel bars of the inner wall and the outer wall of the rampway; and finally pouring the concrete. Due to the adoption of the method, the support changing system is balanced and stable to stress and sufficient in strength.

The invention relates to a bridge demolishing construction method and a device thereof. The bridge demolishing device comprises a main support and hoisting systems, wherein the hoisting systems are arranged on all frame bodies, and each hoisting system comprises a pulley block, a hoist, a leading pulley, a lifting appliance and lifting rods. The hoists are arranged at the tail part of the main support and fixedly mounted to a tail crossbeam, the leading pulleys are mounted above a top crossbeam, the pulley blocks are mounted under the top crossbeam and connected with the lifting appliances, the lifting rods are connected with the lifting appliances, casters are mounted on lower steel beams, the casters which correspond to rails move along the rails, and the casters are driven to roll by motors through driving wheel boxes. The bridge demolishing device adopts the hoists as hoisting power, a to-be-cut bridge is fixed through four points, and then the cutting is performed. The cut bridge parts are integral modules, so that the transportation is convenient, the demolishing efficiency is high, and the demolishing construction is safe and reliable. Construction waste formed after demolishing is also integral modules, so that the transportation is convenient.

The invention discloses a detachable wooden case which is free from metal connecting structures, safe and convenient in mounting process and reusable. At each vertex of a cuboid case body, rectangular connecting holes are formed in three side faces of each end of each Z-direction vertical post while a square connecting hole is formed in the remaining side face of the end of the Z-direction vertical post, rectangular tenons matched with the rectangular connecting holes are arranged at the ends of each X-direction beam, a square inserting opening as same as each square connecting hole is formed in the middle of each rectangular tenon, convex tenons are arranged at the ends of a Y-direction beam, the rectangular tenons at the ends of the X-direction beams are inserted into the corresponding rectangular connecting holes, the square inserting openings are opposite to the corresponding square connecting holes, the upper half portions of the convex tenons pass through the square inserting openings to be inserted into the square connecting holes, and the lower half portions of the convex tenons are inserted into the rectangular connecting holes; each wooden case board is connected with the corresponding X-direction beam, Y-direction beam or Z-direction vertical post in an insertion mode. The detachable wooden case is formed by embedding connection of tenon structures, thereby being high in packaging efficiency and safe, convenient and fast in mounting process.

The invention discloses a damping-type electric drawer device, and the device comprises a frame body (9) and a drawer assembly (8). Two sides of the lower part of the drawer assembly (8) are respectively provided with a rolling wheel (81) which is used for cooperating with a lateral guide rail (92), located at a lower side of a storage cavity (91), used for storing the drawer assembly (8), of the frame body (9), so as to allow the drawer assembly (8) to come in and go out from the storage cavity (91). A power, located at the lower side of the lateral guide rail (92), of the interior of the frame body (9) is fixedly provided with a lateral batten (41). The lateral batten (41) is provided with a drive sliding block assembly (7) which comprises a left supporting plate (731) and a left supporting plate (732).

A structure of the artificial teethridge, the fang and the prosthesis includes an artificial teethridge which has an arched top and an arched bottom, wherein the top and the bottom of the artificial teethridge are curved toward the same direction. The thickness of the artificial teethridge is relatively thicker at central part and gradually becomes thinner toward two lateral sides. A fang form integral on the top of the artificial teethridge. The artificial teethridge, the fang and prosthesis are an integral structure, whereby the artificial teethridge, the fang and the prosthesis form a mechanical conduction structure. The bottom surface of the artificial teethridge has a complementary structure which can be tightly matched and fixed on each point of the top surface of the alveolar bone without any gap, whereby the bottom of the artificial teethridge further includes a fastening fixture. A dental neck form integral between the artificial teethridge and prosthesis, the dental neck being formed in a waisted shape that is narrower at middle section and gradually becomes wider toward to two terminal sections.

The invention discloses a full-automatic speed changer of bicycles. The speed changer comprises a variable speed drive device and a variable speed control device. The variable speed drive device is a three-stage planetary gear train structure which is coaxial with a main shaft, the variable speed control device comprises a part which comprises a constantly meshed output pawl and a constantly released control pawl which are evenly distributed on the outer circumference of the ring gear in the planetary gear train and three stages of the pawls are controlled by a reset spring; and an off-center block balance disc part which controls the meshing action of the pawls and the a ratchet. The off-center block balance disc comprises a fixed disc and a swing link disc which is arranged on the axial diameter of the fixed disc. The swing link disc is hinged with the control pawl through a gear connection rod and a pawl poke rod; a concave arc trough is arranged on the motion track formed by the sliding and swinging of the pawl poke arm along the reset spring; and a rolling bearing is arranged between the swing link disc and the axial diameter of the fixed disc. The full-automatic speed changer of bicycles has the advantages of high sensibility and high reliability of variable speed control.

Disclosed is an electric power drawer cabinet apparatus with a heat dissipation function. The apparatus comprises a frame body (9) and a drawer assembly (8), the two sides of the lower portion of the drawer assembly (8) are provided with rollers (81) for cooperating with a transverse guide rail (92) disposed at the lower side of an accommodating cavity (91), used for accommodating the drawer assembly (8), of the frame body (9) so as to enable the drawer assembly (8) to go into and out of the accommodating cavity (91), the lower side of the transverse guide rail (92) in the frame body (9) is fixedly provided with a transverse plate strip (41), the transverse plate strip (41) supports a driving slide block assembly (7), and the driving slide block assembly (7) comprises two support arm plates (731, 732) which are arranged at a left position and at a right position.

The invention discloses an anchoring connection method pulling-resistant device for a single pile vertical pulling-resistant static load test. The structure of the anchoring connection method pulling-resistant device differs from tradition, a form that other high-strength connection parts are detachably anchored with pulling rods directly or indirectly is adopted, a series of problems brought by an existing form of utilizing base seat main steel bar namely regular steel bar welding are avoided, the anchoring connection method pulling-resistant device is suitable for filling piles and preformedpiles, convenient and stable in connection, uniform in force bearing and is safe and reliable, improvement of the site work efficiency and cost saving are facilitated, the accuracy of the measurementresult is also guaranteed, furthermore, when both vertical compression resistance and vertical pulling-resistant static load test are required to perform on a same foundation pile, limit of sequential order also does not exist, and the anchoring connection method pulling-resistant device for the single pile vertical pulling-resistant static load test is convenient and capable of saving time.

The invention discloses a channel gate for hydraulic engineering, which comprises a gate body, a supporting seat and two deicing devices, wherein the two deicing devices are correspondingly arranged on the front side and the rear side of the supporting seat and each comprise a driving motor, a rotating screw rod and a deicing head, the driving motors are positioned on the top surface of the supporting seat, the top ends of the rotating screw rods are connected with the driving motors, and the deicing heads sleeve the rotating screw rods. The mounting method comprises the following steps: (1) preparing construction; (2) installing a channel gate; (3) installing a winch; and (4) and running in a trial mode. The channel gate is simple in structure, the gate body can be more conveniently mounted through the design of the supporting seat, and the structure of the channel gate is firmer and more reliable; and meanwhile, through the design of the deicing devices on the two sides of the gate body, when the surface of the channel gate is frozen, deicing is performed on the two sides of the channel gate, so that the channel gate can be normally used in cold and frozen seasons, and the channel gate is more convenient to use.

The invention relates to the technical field of filtration of oil products in the hydraulic and lubrication field, in particular to an electronic filter device and method of oil products in the hydraulic and lubrication field. The electronic filter device comprises a pump, a control system, a high-voltage static generator, an electronic filter element device, a high-density fiber water absorption and filtration device, a pressure sensor and a moisture sensor. An oil discharging outlet pipeline of an oil tank is connected with the inlet end of the high-density fiber water absorption and filtration device through the pump, the high-density fiber water absorption and filtration device is connected with the inlet end on the left side of the high-voltage electronic filter element device through a path of an electromagnetic valve. The outlet end on the right side of the high-voltage electronic filter element device is connected with an oil tank inlet pipe of a hydraulic system, and the high-voltage electronic filter element device generates a high-voltage positive and negative electric field. Compared with the prior art, the electronic filter device has the advantages of reducing oil exchanging frequency, achieving recycling economy because the hydraulic oil products can be recycled, reducing equipment faults and the number of maintenance times, prolonging equipment service life, achieving on-line automatic operation and on-line monitoring, reducing pollutant discharge and building environment-friendly equipment.

A speed adjustable electric power drawer cabinet device comprises a frame body (9) and a drawer assembly (8). Two sides of the lower portion of the drawer assembly (8) are provided with rollers (81) which are used for matching a transverse guide rail (92) at the lower side of an accommodating cavity (91), accommodating the drawer assembly (8), of the frame body (9), so that the drawer assembly (8) is allowed to be in and out of the accommodating cavity (91). A transverse batten (41) is disposed fixedly in the frame body (9) and at the lower side of the transverse guide rail (92). The transverse batten (41) carries a drive slider assembly (7). The drive slider assembly (7) comprises two support plates (731,732) disposed on left and right sides.

The invention discloses an electric power drawer cabinet apparatus with a heat dissipation fan. The apparatus comprises a frame body (9) and a drawer assembly (8), the two sides of the lower portion of the drawer assembly (8) are provided with rollers (81) for cooperating with a transverse guide rail (92) disposed at the lower side of an accommodating cavity (91), used for accommodating the drawer assembly (8), of the frame body (9) so as to enable the drawer assembly (8) to go into and out of the accommodating cavity (91), the lower side of the transverse guide rail (92) in the frame body (9) is fixedly provided with a transverse plate strip (41), the transverse plate strip (41) supports a driving slide block assembly (7), and the driving slide block assembly (7) comprises two support arm plates (731, 732) which are arranged at a left position and at a right position.

The invention discloses a spring mattress, comprising: a first buffer layer that includes an upper cushion, a lower cushion and elastic units arranged between the upper cushion and the lower cushion,wherein each elastic unit includes an upper sleeve, a lower sleeve, a spring nested in the upper and lower sleeves, and an elastic covering, upper pads between the elastic units are elastically connected to jointly from an upper cushioning board, and lower pads between the elastic units are elastically connected to jointly form a lower cushioning board; a second buffer layer that is arranged belowthe first buffer layer and that includes a receiving box, an arch board and a flat board. The top of the receiving box is opened, the arch board is arranged in the receiving box, the arch back of thearch board raises the flat board by a certain distance, two ends of the arch board are bent up in arc shape and are then continuously bent and extended toward the bottom of the receiving box, the twoends of the arch board are fixedly connected with support boards, the support boards vertically support the flat board, and the inner wall of the receiving box is covered with rubber.

The invention relates to an electrical connector terminal welded at a circuit board, which is provided with a body and an installing platform connected at the body bottom for bearing the solder. The installing platform comprises a first part vertically extending from the body bottom to one side and a second part vertically extending from the body bottom to the relative side. The installing platform is symmetrical corresponding to the terminal body, thereby ensuring the solder of the connecting circuit board jointed to the central position of the terminal for balance stress of the terminal.

The invention provides a hole digging and soil picking up device which comprises two hole digging pieces and a connecting device through which the two hole digging pieces are connected. Each hole digging piece comprises a shovel piece and a handle connected with the shovel piece. The connecting device comprises a first connecting piece and a second connecting piece which are hinged together, wherein the first connecting piece is fixedly connected with the handle in one hole digging piece, and the second connecting piece is fixedly connected with handle in the other hole digging piece. The hole digging and soil picking up device further comprises a locking device, wherein the locking device comprises a third connecting piece and a fourth connecting piece which are hinged together. By means of the device, deep holes can be dug precisely and soil can be picked up without damaging the pore diameter and the structure of surrounding earth blocks, the device meets the requirement for digging underground holes with various pore diameters and various depths, tools do not need to be frequently replaced when deep holes are dug or soil is picked up, and efficiency of hole digging work is improved.

The invention relates to a locking support mechanism and an exposure device of a material exposure test box. The locking support mechanism comprises locking brackets and a bearing mechanism, and a plurality of locking brackets are correspondingly and vertically fixed to the peripheral side of the beating mechanism; sliding grooves are formed in one side edges of the locking brackets, limiting notches are formed in the groove walls of the sliding grooves, guide locking parts are arranged on the locking brackets, and penetrate through two groove walls of the sliding grooves; baffles which are arranged at intervals with the side walls of a test box are correspondingly arranged on the side walls of the test box, mounting ports are formed among one ends of the baffles and the side walls of thetest box, separating bars are arranged among the baffles and the side walls of the test box, the baffles and the side walls of the test box are separated by the separating bars to form a plurality ofmounting grooves which are formed up and down, and guiding ports are formed in the baffles; and wherein the groove walls formed with the limiting notches of the sliding grooves are inserted into the mounting grooves, the separating bars are inserted into the limiting notches, the guide locking parts are inserted into the guiding ports, and lock the baffles in the sliding grooves. According to thelocking support mechanism and the exposure device of the material exposure test box, the structure is stable and firm, and the environmental requirements of a space station can be met.