154 results about "Compression member" patented technology

A telescopic tripod with linkage locking is provided, which includes a support base, and three sets of first support tubes are hinged on the support base along a circumferential direction, wherein a sliding seat is slidably installed on the first support tube, a second support tube is fixedly installed on a lower side of the sliding seat, an installation seat is installed at a lower end of the second support tube, and a third support tube is slidably installed inside the installation seat. The sliding seat is provided with a first compression member controlled by a locking member, the installation seat is provided with a second compression member connected to the locking member through a first steel cable, and the second compression member is in contact with the third support tube. The telescopic tripod can realize a joint locking effect and make the operation more convenient.

The invention provides a compression-torsion coupled metamaterial cell element and a negative Poisson's ratio energy absorption structure composed of the compression-torsion coupled metamaterial cell element, and relates to the technical field of compression-torsion energy absorption metamaterials. The cell element comprises an upper connecting plate assembly and a lower connecting plate assembly, an upper-layer four-rod tensioning assembly and a lower-layer four-rod tensioning assembly are arranged between the upper connecting plate assembly and the lower connecting plate assembly, each of the upper-layer four-rod tensioning assembly and the lower-layer four-rod tensioning assembly comprises four compression rigid rod pieces and a plurality of tension elastic bodies, the compression rigid rod pieces are staggered in space to form a quadrangular prism-like frame, and the tail ends of the upper compression rigid rod piece and the lower compression rigid rod piece are hinged; adjacent hinge points and two corresponding corners of the surfaces of the upper connecting plate assembly and the lower connecting plate assembly are connected through tensile elastic bodies and apply pre-tightening force; the energy absorption structure is formed by combining a plurality of cell element arrays, and the negative Poisson's ratio effect is achieved by regulating and controlling the arrays. According to the cell element, a tensioning structure is integrated into a metamaterial configuration, the cell element has the compression-torsion coupling characteristic, the non-localized deformation response of the structure is achieved, and the energy absorption structure has the negative Poisson's ratio effect and provides excellent bearing and impact resistance through an efficient energy absorption mechanism.

The utility model relates to a tensioning device for a building block type screw. The tensioning device comprises a stretching piece, a pressing piece, a telescopic piece and a driving piece. The stretching piece is used for being connected with a locking piece of the building block type screw. The pressing piece is used for being connected with a thread element of the building block type screw. One end of the telescopic piece is connected with the stretching piece, and the other end of the telescopic piece is connected with the pressing piece; the driving part is connected with the telescopic part and used for driving the telescopic part to do telescopic motion. Compared with the prior art, the tensioning piece and the pressing piece only transmit axial force to the shaft core and the thread element, so that the transmission efficiency of the tensioning force is high, and compared with a radial screwing mode of a traditional torque wrench, radial load is not borne between the shaft core and the thread element, and the torque wrench is simple in structure and convenient to use. The problem that the friction coefficient is increased due to torsional deformation of the thread element and the shaft core spline is solved.

The invention discloses an underground pipeline settlement monitoring device and monitoring method.The underground pipeline settlement monitoring device comprises a static force level gauge mechanism which is connected in series and monitors pipeline settlement through changes of the internal liquid level, and further comprises a vibration air compression mechanism and an opening and closing mechanism which are communicated and both arranged on the static force level gauge mechanism; the protection mechanism is arranged on the opening and closing mechanism, a connecting hose is arranged in the protection mechanism and used for communicating the adjacent static force level gauge mechanisms, and an extrusion mechanism is arranged outside the protection mechanism and used for applying pressure to the interior of the protection mechanism. The static leveling instrument has the beneficial effects that when vibration exists at a measuring point, the vibration air compression piece reciprocates in the air compression cylinder under vibration and can suck air along the one-way valve and press the air into the opening and closing mechanism, the first sliding piece is pushed to move downwards, and a liquid inlet and a liquid outlet of the static leveling instrument mechanism are blocked; the liquid is prevented from flowing between the liquid storage tank and the connecting hose due to vibration, so that the liquid level is prevented from changing due to vibration to influence the detection precision.

The invention provides a compressor and a vehicle. The compressor comprises a machine shell and a compressor body, the compression component is arranged in the cavity and comprises an air cylinder, a main bearing, an auxiliary bearing and a crankshaft, the main bearing and the auxiliary bearing are arranged at the two ends of the air cylinder, and the two ends of the crankshaft penetrate out of the main bearing and the auxiliary bearing respectively; the oil separation part comprises a first shell, an oil separator and a third shell, and the first shell, the auxiliary bearing and the third shell define a first cavity; the oil separator comprises a second shell provided with a second cavity and an oil separation insertion pipe arranged in the second cavity, the second shell is arranged on the outer surface of the first shell, the second cavity is communicated with the first cavity and the cavity of the machine shell, and compressed refrigerants enter the oil separator from the first cavity to be subjected to oil-gas separation and then are discharged out of the machine shell; the third shell is arranged in the first cavity, the third shell and the auxiliary bearing are matched to form a third cavity, and the end, close to the auxiliary bearing, of the crankshaft is sealed in the third cavity. The compressor provided by the invention is low in oil yield and high in working efficiency.

The utility model discloses a cutting head and a skin treatment device, the cutting head comprises a shell, the shell is provided with a mounting cavity and a through hole structure, and the through hole structure penetrates through the side wall of the shell; the transducer assembly is movably arranged in the mounting cavity; the telescopic pipe is arranged in the mounting cavity, one end of the telescopic pipe is an open end, the other end of the telescopic pipe is connected with the transducer assembly, and the open end is communicated with the through hole structure; the sealing connection structure comprises a pressing piece and a fastening piece connected with the pressing piece, and at least part of the open end is clamped by the pressing piece and the fastening piece so that the clamped part of the telescopic pipe can be attached to the pressing piece and / or the fastening piece in a sealed mode; the sealing connection structure is matched with the side wall of the shell so that the open end can be connected to the shell in a sealed mode. The sealing connection structure is provided with an air passing hole so that the interior of the telescopic pipe can communicate with the outside through the opening of the open end and / or the through hole structure. According to the technical scheme, the sealing performance can be improved.

The utility model discloses an aviation composite material test piece positioning tool, and relates to the technical field of composite material test piece production, the aviation composite material test piece positioning tool comprises a fixed template and a movable template which are matched with each other, and a pressing space used for pressing a clamping plate of a test piece is formed between the fixed template and the movable template; the positioning assembly is used for fixing the test piece in the pressing space; and the cleaning assembly is used for cleaning glue seeping from the junction between the clamping plate and the pulling and pressing piece after the clamping plate is pressed. According to the utility model, pressure is applied to the movable template, so that the clamping plates bond, pre-press and fix the upper and lower surfaces of the two ends of the tension and compression piece, bubbles in a glue layer are extruded out, and the bonding quality is ensured; the cleaning piece is arranged and can move along the junction between the clamping plates and the tension and compression piece under the driving of the driving part; therefore, glue seeping from the junction is cleaned, the glue of the test piece is prevented from adhering to the tool, and the test piece can be conveniently detached from the tool in the later period.

The utility model discloses a copper band leveling device, including feeding module, leveling module and receiving module, the feeding module includes fixed frame, rotatable installation on the fixed frame's rotating roller, be used for driving rotating roller rotation's drive motor and be used for fixing and installing copper band winding pipe on the rotating roller's tensioning component, the rotating roller is through drive shaft with the output end transmission connection of drive motor, the outer diameter of rotating roller is less than the inner diameter of copper band winding pipe, the tensioning component includes the sliding pipe of sliding on the rotating roller, the tensioning block of being connected with sliding pipe through linkage and be used for fixing the compression member of sliding pipe, the center of rotating roller is equipped with center sliding hole, and the sliding pipe cooperation is inserted in the center sliding hole, the outer wall of rotating roller is equipped with the tensioning hole of intercommunication with the center sliding hole, and the tensioning block cooperation is inserted in the tensioning hole.

The utility model discloses a moxa shaping device, and belongs to the technical field of medical instruments. The moxa shaping device comprises a cylinder body, which is internally provided with a cavity and is used for placing moxa; the propelling assembly is detachably connected with one end of the barrel, a pressing piece is arranged at the end, close to the barrel, of the propelling assembly, a driving piece is arranged at the end, away from the barrel 1, of the propelling assembly, and the driving piece is used for driving the propelling assembly to do piston motion in the cavity of the barrel; the mold assembly is detachably connected with the other end of the cylinder body, a mold is arranged at the end, close to the cylinder body, of the mold assembly, and the mold is configured to be matched with the pressing piece to shape the moxa in the cavity into a moxa tower. According to the utility model, the cost is reduced, the operation is simple and convenient, and the shaping work can be finished by hand holding.

The utility model discloses a plunger adjusting assembly and a plunger pump, and relates to the technical field of plungers. According to the main technical scheme, a mounting groove is formed in a sliding block; the boss structure is attached to the bottom of the mounting groove, a first gap is formed between the boss structure and the wall of the mounting groove, and the first gap is used for reserving a space for the boss structure to move in the radial direction of the mounting groove; the plunger rod is connected to the end, away from the bottom of the mounting groove, of the boss structure. The plunger rod is sleeved with the pressing piece, a second gap is formed between the pressing piece and the plunger rod, and the second gap is used for reserving a space for the plunger rod to move in the radial direction of the pressing piece; the pressing piece is connected to the sliding block and attached to the boss structure. The purposes of adjusting the coaxiality of the plunger rod and the cylinder body, reducing the abrasion risk of the plunger rod, prolonging the service life of the plunger rod and improving the normal use probability of the plunger pump are expected to be achieved. And meanwhile, in the displacement process of the plunger rod, the coaxiality between the plunger rod and the sliding block is effectively ensured, and then the aims of reducing the risks of inclination, bending, breakage and abrasion of the plunger rod are achieved.

The present invention discloses an FRP-anti-corrosion wood composite truss structure, which includes an FRP profile tension member, an anti-corrosion wood rod compression member, and a metal joint; the FRP profile tension member includes an FRP profile and double sleeve connectors located at both ends of the FRP profile, the anti-corrosion wood rod compression member includes an anti-corrosion wood rod and sleeve connectors located at both ends of the anti-corrosion wood rod, and multiple FRP profile tension members and anti-corrosion wood rod compression members are connected through metal joints to form an FRP-anti-corrosion wood composite truss structure. By combining the FRP profile and the anti-corrosion wood rod into a truss structure through a specific joint connection method, the mechanical properties of each material are fully utilized. The amount of metal material used in the entire truss structure is very small, reducing the consumption of non-renewable energy; the FRP-anti-corrosion wood composite truss as a whole exhibits the mechanical properties of light weight and high strength, and its seismic performance and anti-fatigue performance have been greatly improved compared with steel trusses and reinforced concrete trusses.

A two-piece blank comprising: - a chassis (10) of corrugated cardboard or cartonboard having two first parallel crease lines (12a-b), and a second and a third crease line (14a, 14b) intersecting the two first parallel crease lines (12a-b), wherein the first, second and third crease lines (12a-b, 14a, 14b) define a series of a quadrangular rear panel (16), a quadrangular bottom panel (18) and a short front panel (20), wherein the second crease line (14a) defines a quadrangular left panel (22) connected to the bottom panel (18) and two left flaps (24) connected to the rear panel (16) and front panel (20), respectively, and wherein the third crease line (14b) defines a quadrangular right panel (26) connected to the bottom panel (18) and two right flaps (28) connected to the rear panel (16) and front panel (20), respectively, - a lid compression member (30) of corrugated cardboard or cartonboard having two fourth parallel crease lines (32a-b) defining a series of a front lid panel (34), a quadrangular top lid panel (36) and a rear lid panel (38), wherein at least one perforated or notched detachment line (34c; 36c, 36d) is formed transverse to the front lid panel (34) or the top lid panel (36), and wherein: - the front lid panel (34) is glued to an internal face of the front panel (20), or - the rear lid panel (38) is glued to an internal face of the rear panel (16), wherein the fourth crease lines (32a-b) are parallel to the first crease lines (12a-b). A box (B) is obtainable from the blank by folding.

The utility model discloses an external embracing fixture for rod parts, which comprises a mounting seat, a positioning ring, an expansion ring, a pressing piece and a protective support ring, one end of the mounting seat is a connecting end, the other end of the mounting seat is provided with a taper hole, the small end of the taper hole faces the connecting end, the taper hole is used for inserting a rod piece to be processed, the positioning ring is connected to the mounting seat and is provided with a positioning groove, and the expansion ring is arranged in the positioning groove. The positioning groove is used for inserting and positioning the end of a rod piece, the expansion ring is connected to the mounting base and provided with a conical end and a clamping hole, the conical end is inserted into the conical hole, the clamping hole is used for allowing the rod piece to penetrate through, and the pressing piece is connected to the mounting base and used for applying pressure moving towards the conical hole to the expansion ring, so that the clamping hole clamps the rod piece. The protection supporting ring is located between the positioning ring and the expansion ring and provided with a guide hole matched with the rod piece, and the rod piece is inserted into the guide hole. The outer circumferential face of the rod piece is evenly stressed, deformation of the rod piece due to excessive local stress is avoided, the positioning distance of the clamp to the rod piece is long, and the rod piece is stably positioned in the machining process.

The invention relates to a state-changing device (1) comprising a first branch (16) and a second branch (18), at least one collector (6) provided with at least one first inlet (7) connected to the first branch (16), a second inlet (9) connected to the second branch (18), a first outlet (42) through which the fluid in supercritical state is extracted and a second outlet (40), the first branch (16) comprising a heat exchanger (24) and a compression member (32), the first branch (16) and the second branch (18) extending from a divergence point (20) and meeting inside the collector (6), the circuit (10) comprising at least one return line (46) connected to the second outlet (40) of the collector (6), the return line (46) being configured to inject between the heat exchanger (24) and the compression member (32) at least part of the fluid present in the collector (6).

The utility model relates to a cutting machine positioning structure for glass polishing pad production, which belongs to the technical field of glass polishing pad production and comprises a cutting machine table and a cutting device, and a glass polishing pad surface layer and a positioning structure are arranged on the cutting machine table. According to the cutting machine positioning structure for producing the glass polishing pad, the positioning structure is arranged, the air cylinder is used for driving the pressing piece, stable edge fixing force is provided, the leveling roller is driven by the driving component to rotate, and the rotating leveling roller makes contact with the wrinkles of the surface layer of the glass polishing pad, so that the wrinkles are smoothed; the leveling roller is combined with an electric push rod through a spring, so that the contact between the leveling roller and the glass polishing pad surface layer is adaptively adjusted, the leveling force is controlled, and the glass polishing pad surface layers made of different materials can be leveled and fixed; material pretreatment can be rapidly completed through rotary rolling of the leveling roller and transverse movement of the guide frame, and the single-time cutting period is shortened through linkage with the cutting device.

A three-dimensional structure spacecraft having a tensegrity structure appropriately controls a vibration even when the three-dimensional structure spacecraft is subjected to air resistance, solar wind disturbance, or the like, lands a satellite or a planet, and performs work or the like. The three-dimensional structure spacecraft includes a plurality of compression members and a plurality of tension members. Three or more of the tension members are connected to each of ends of the compression members. A three-dimensional structure formed by the compression members and the tension members is maintained by tension of the tension members. A variable damping force damper is disposed in at least either the compression members or the tension members. The variable damping force damper is configured to generate a predetermined force in a longitudinal direction of the compression members or in a longitudinal direction of the tension members.

A multi-piece blank comprises a chassis 10 having two first parallel crease lines 12a-b intersected by a second and third crease line 14a, 14b. The creases define a rear panel 16, a bottom panel 18 and a short front panel 20; further, the second crease defines a left panel 22 connected to the bottom panel; the third crease defines a right panel 26 connected to the bottom panel; one first parallel crease defines two rear flaps 24 connected to the left and right panels; and the other defines two front flaps 28 connected to the left and right panels. The blank also includes a first and second lid compression members 30, 50 having, respectively, two fourth parallel crease lines 32a-b defining a first side lid panel 34, top lid panel 36 and internal lid panel 38, and two fifth parallel crease lines 52a-b defining a second side lid panel 54, top lid panel 56 and internal lid panel 58. The side lid panels are glued to an internal face of the right and left panels respectively. The fourth and fifth crease lines are parallel to the second and third crease lines. A box is obtainable from the blank.

The utility model provides a pressure reducing valve, and belongs to the technical field of valves. The problem that assembling is inconvenient is solved. The valve body is provided with an inlet and an outlet, the valve seat is positioned in the valve body in the vertical direction, the valve rod penetrates through the valve seat, a large leather film is fixed between the outer side of the upper end of the valve rod and the valve body, a small leather film is further fixed on the outer side of the middle of the valve rod, a pressure guiding channel is formed in the valve rod, one end of the pressure guiding channel is communicated with the inlet, and the valve seat is in a barrel shape with the upper end and the lower end open. An annular mounting seat is integrally and fixedly connected into the valve seat, an annular pressing piece is connected into the upper end of the valve seat in a threaded mode, the outer edge of the small leather film is fixed between the mounting seat and the lower end of the pressing piece, a plurality of medium passing openings are formed in the position, lower than the mounting seat, of the outer side of the valve seat in the circumferential direction, and the medium passing openings communicate with the outlet. The outer edge of the large leather film abuts against the upper end of the pressing piece, a pressure adjusting cavity is formed among the large leather film, the small leather film, the valve rod and the pressing piece, and the other end of the pressure guiding channel is communicated with the pressure adjusting cavity. The device has the advantages of convenience in assembly and the like.

This invention provides a method for calculating the out-of-plane bearing capacity of unequal-sided angle steel cross-bracing members. An external load is applied to the angle steel, and the resulting compression member is discretized into several micro-segments. The curvature of each micro-segment is calculated, and the internal forces of the micro-segment sections are further calculated. This calculation is iteratively performed until the internal forces and the applied external load satisfy the convergence tolerance. Based on the external load and the matching micro-segment curvature, element stress, and micro-segment section internal forces, the bending moment of the section is obtained by integration. The length and rotation of each micro-segment are then calculated using the moment increment formula and the micro-segment rotation formula, respectively. This iterative calculation continues until the micro-segment rotation is zero. The lengths of each micro-segment are then summed to obtain the member length corresponding to the given external load. This method employs a reverse calculation approach, determining the corresponding bending moment based on the member's buckling shape, and then obtaining the member length, thus filling the gap in the calculation of the out-of-plane bearing capacity of unequal-sided angle steel.

The utility model relates to the technical field of fastening connecting pieces, in particular to a traceless high-strength pressing rivet screw which comprises a stud and a head portion which are coaxially arranged, the outer wall face of the head portion is in an inclined shape, the outer wall face gradually inclines towards the side close to the central axis in the pressing-in direction of the head portion, and therefore it is guaranteed that in the pressing-in process of the pressing rivet screw, the outer wall face of the head portion gradually inclines towards the side close to the central axis. Finally, traceless embedding is realized, and the aesthetic property is ensured. The spline teeth are uniformly distributed on the outer wall surface of the head part, so that the pressing rivet screw can be completely embedded, the safety can be ensured in an application scene, and accidents caused by protruding of the screw head are avoided; and meanwhile, interference in space can be reduced, and normal assembly and operation of all components are ensured. The extrusion component is arranged between the stud and the head part, so that a workpiece between the stud and the head part is extruded to deform and is embedded into the annular concave part in the embedding process of the pressing rivet screw, the phenomenon that the workpiece warps upwards is avoided, the screw is prevented from axially loosening, and the connection tightness is ensured.

The invention relates to the field of power transmission line iron towers, in particular to a steel pipe component bearing capacity calculation method considering node semi-rigidity, which comprises the following steps: (1) determining the rotational rigidity of a bottom support and the rotational rigidity of a top support of an axial pressure steel pipe component; (2) calculating the linear stiffness of the axial pressure steel pipe member; (3) calculating a bottom spring hinge-compression bar stiffness ratio and a top spring hinge-compression bar stiffness ratio of the axial compression steel pipe member; (4) determining the calculation length coefficient of the axial compression steel pipe component considering the constraint of the fixed spring hinges at the two ends; (5) the slenderness ratio of the steel pipe component is calculated; (6) the slenderness ratio of the steel pipe component is corrected through an engineering method; (7) determining the stability coefficient of the steel pipe component considering the semi-rigid joint; and (8) the bearing capacity of the steel pipe component considering the semi-rigid joint is calculated. The method is reliable and reasonable, the calculation result is accurate, and the construction cost of the power transmission line steel tube tower can be effectively reduced.

This utility model relates to the field of medical connector technology, specifically a sterile coupling medical connector structure, including a connector body. A connector head is fixed to the upper end of the connector body. A connecting ring is provided on the outside of the connection between the connector body and the connector head. A retaining ring is engaged on the connecting ring. The retaining ring has a double-layer sealing mechanism inside, consisting of an inner sealing ring, an outer sealing ring, and elastic support plates. The elastic support plates are evenly distributed between the inner and outer sealing rings. Furthermore, the inner wall of the retaining ring along its edge has several sets of reinforcing components consisting of support blocks and compression members. These reinforcing components provide additional pressure when the connector is inserted into the device port. This sterile coupling medical connector structure improves sealing performance and reliability, simplifies the installation process, reduces operational difficulty, and effectively reduces the risk of leakage and the possibility of misoperation.

A multi-piece blank comprises a chassis 10 having two first parallel crease lines 12a-b intersected by a second and third crease line 14a-b. The crease lines define a rear panel 16, a bottom panel 18 and a short front panel 20; further, the second crease line defines a left panel 22 connected to the bottom panel, and the third crease line defines a right panel 26 connected to the bottom panel. The blank also includes a bottom compression member 30 comprising a bottom reinforcing panel 36 with at least one reinforcing flap 34, 38; 35, 37 connected through at least one fourth crease line 32a-b; 33a-b). The bottom reinforcing panel is glued to an inner face of the bottom panel and the at least one reinforcing flap is contiguous to at least one of the rear, front, left and right panels. The fourth crease line is parallel to at least one of the first, second and third crease lines. A tray (T, fig. 4) is obtainable from the blank by folding.

A bicycle seatpost and an associated mounting assembly are disclosed. The seatpost includes a seat tube having a head portion defining two cavities and a linking channel extending therebetween in a radial direction. The head portion further defines two annular walls respectively surrounding and bounding the cavities. The mounting assembly comprises two detent assemblies, two saddle clamps, and a fastening assembly. Each detent assembly is disposed in a respective cavity and engages the corresponding annular wall to restrict rotation. Each saddle clamp clamps a saddle rail of a bicycle saddle and includes a compression member that radially presses the detent assembly, with rotation of the saddle clamp constrained by the detent assembly to fix the pitch orientation of the saddle. The fastening assembly extends through the cavities and linking channel to couple the detent assemblies and saddle clamps, thereby integrating the mounting assembly with the seat tube.

The utility model provides an incoming and outgoing line sheath end socket of a distribution transformer, which comprises an incoming and outgoing line, an incoming and outgoing line top end matching head, a protective sleeve, a pressing component, a rubber leather sheath, an inserting cylinder, an expansion pad, a top groove, a fixing buckle, a sealing sleeve, a positioning frame, an inserting rod and an auxiliary clamp, the incoming and outgoing line top end matching head is arranged at the top end of the incoming and outgoing line, and the incoming and outgoing line penetrates through the protective sleeve. An inserting cylinder is arranged at the top end of the protective sleeve and further sleeved with a rubber sleeve, an expansion pad arranged at the bottom of the inserting cylinder is fixedly connected with the left side and the right side of a top groove in the protective sleeve through fixing buckles, a pressing component is arranged at the bottom of the protective sleeve, a layer of sealing sleeve is further arranged in the protective sleeve, and the positioning frame is fixedly arranged in the protective sleeve. The protective device is reasonable in structure and simple to operate, not only can effectively protect the connected inlet and outlet wires and reduce external abrasion, but also ensures the sealing safety of the joints of the transformer and the inlet and outlet wires, and prevents water or dust from influencing the transformer.

A flexible device for protecting a medical port is provided. The device is configured to absorb high impact forces and protect the medical port. The device comprises a shell selectively attachable to a unitary assembly. The shell includes a dome, a base, and a lip enabling engagement with the unitarity assembly. The unitary assembly comprises a winged adhesive, a compression member, and a collar, each including an aperture and a cutout. The collar is coupled to the winged adhesive, the winged adhesive is coupled to the compression member. The collar includes a groove housing the lip when the shell is attached to the unitary assembly, locking the shell in place for use. The winged adhesive includes arms extending outwardly and an adhesive to attach and detach the device from the user. In operation, the apertures encompass the port and the cutouts permit a port tube to extend through the device.

The utility model discloses a shear block load test device, which is provided with two groups of precast blocks, a group of shear blocks is fixedly arranged on each group of precast blocks, a jack is arranged between the two groups of shear blocks, and a limiting rectangular frame 4 is arranged around the two groups of precast blocks. And the shear block is fixed on the precast block through a threaded rod. And installing a 250t center hole jack to start the test after the test is qualified. During the test, the strength of the test block concrete cured under the same condition on site is 40Mpa, and the strength of the precast block for the test is 40Mpa. Two prefabricated blocks of 100 cm * 120 cm * 150 cm are prefabricated on a concrete compression member on site, the mark number is C40, maintenance test pieces under the same condition are reserved on site, and the distance between the prefabricated blocks is 30 cm. I36 longitudinal I-shaped steel and I45 transverse I-shaped steel are processed into two rectangular limiting frames to fix the concrete precast blocks.

The invention is entitled "Cable Tray Compression Member". The present disclosure relates to a compression member for a cable tray. The compression member can be configured for high wind conditions. The compression member includes a support clamp for clamping to a support member, and a compression arm for holding the cable tray to the support member.

A compressor includes a shell, a first compression member, a bearing housing and a second compression member. The first compression member is rotatable relative to the shell about a first axis. The bearing housing is coupled to the first compression member and rotatable relative to the shell about the first axis. The bearing housing includes a first pin that extends therefrom. The second compression member is rotatable relative to the shell about a second axis. The second compression member includes a base plate and an arcuate-shaped first pin pocket. The first pin pocket is formed in the base plate and receives the first pin. The first compression member is moveable between a first position in which the first pin is engaged with a surface of the first pin pocket and a second position in which the first pin is disengaged from the surface of the first pin pocket.

The present application relates to a side-operated cosmetic pen, which includes an application component, a connecting member, an operating member, a discharging component and a container component. The discharging component includes a transmission member and a compression member connected to each other. The compression member has elasticity. The first end of the connecting member is connected to the application component, and the second end of the connecting member is detachably connected to the container component. The transmission member and the compression member are installed in the connecting member. The operating member is installed on the side wall of the connecting member. A first valve body is provided between the first end of the discharging component and the application component, and a second valve body is provided between the second end of the discharging component and the container component. In this cosmetic pen, the operating member is arranged on the side wall of the pen body, so that the user can complete the replenishment of the application component with one hand operation, which is very convenient to use.