10results about How to "Ensure safe use" patented technology

The application discloses a woven ceramic matrix composite sub-crack opening displacement prediction method and system, and comprises the following steps: obtaining the micro stress field of the woven ceramic matrix composite sub-crack by using the micro mechanics method according to the material parameters of the woven ceramic matrix composite; obtaining the axial displacement of the fiber and the matrix in the interface debonding area range by using the axial displacement calculation method according to the micro stress field of the woven ceramic matrix composite sub-crack; obtaining the interface debonding length of the woven ceramic matrix composite sub-crack by using the fracture mechanics method according to the axial displacement of the fiber and the matrix in the interface debonding area range; and obtaining the woven ceramic matrix composite sub-crack opening displacement according to the interface debonding length and the axial displacement of the fiber and the matrix in the interface debonding area range. The application can improve the precision of the woven ceramic matrix composite sub-crack opening displacement prediction result, ensure the high-temperature environment use reliability and safety of the ceramic matrix composite structure, and has low cost.

The utility model discloses convenient-to-clean filtering equipment for body lotion production, which relates to the technical field of body lotion production and comprises an equipment main body and a driving shaft penetrating through the middle of the equipment main body, and four groups of connecting clamping plates are fixedly connected onto the driving shaft. The driving shaft is sequentially sleeved with a first rotating disc, a second rotating disc and a third rotating disc from bottom to top, and the upper sides of the first rotating disc, the second rotating disc and the third rotating disc are fixedly connected with a first annular filter screen, a second annular filter screen and a third annular filter screen respectively. The utility model has the advantages that the cleaning speed reduction caused by mutual obstruction among the first ring filter screen, the second ring filter screen and the third ring filter screen can be avoided when the filtering structure is cleaned, a good barrier-free cleaning function is realized, and the cleaning difficulty of the filtering structure is obviously reduced; and the filter screen rotating in a centrifugal mode can be limited, meanwhile, large friction between the filter screen and the limiting structure is avoided, and the use stability and safety of the filter structure are ensured.

The utility model relates to the field of air conditioner drain pipes, and discloses a wall-mounted integrated air conditioner drain pipe connecting piece which comprises a connecting cylinder, the connecting cylinder is fixed to the outer wall of a condensate pipe, the outer wall of the connecting cylinder is movably sleeved with two locking rings, and a plurality of connecting plates are fixed between the two locking rings. A conical rubber sleeve is fixed to the right side of the connecting cylinder, a drainage pipe is detachably arranged in the rubber sleeve, and a plurality of elastic clamping plates are fixed to the right end of the connecting cylinder. According to the utility model, the connecting cylinder, the rotating ring, the internal thread, the external thread, the locking ring, the connecting plate, the rubber sleeve and the elastic clamping plate are matched for use, so that the condensate pipe and the drain pipe can be quickly connected, additional auxiliary tools are not needed, the operation difficulty is reduced, and the installation is simpler and more convenient.

The utility model provides a kind of electronic expansion valve and its limiting mechanism, the limiting mechanism includes shaft sleeve, guiding spring being sleeved on the shaft sleeve and stop ring being screwed on the guiding spring, one end of the shaft sleeve is formed boss along radial outer convex, the boss is recessed to form limit slot in the end face of one end of the stop ring, the circumferential groove side wall of the limit slot is as first limiting part, one end of the stop ring is as first stop part, when the first stop part and the first limiting part abut, the valve needle can be limited in first position, avoid moving transition to cause damage or damage, ensure the opening and closing accuracy and use safety of electronic expansion valve.

This invention relates to emergency reinforcement blocks, individual units, and emergency sparse-density reinforcement methods for beam fractures, belonging to the field of building structure technology. When beam components are subjected to heavy hanging loads or their function changes without design verification, there is a lack of quantitative emergency remedies for beam reinforcement. The invention utilizes a hollow steel box comprising a box body with multiple hollow holes for concrete pouring. The top of the hollow steel box has an arc-shaped notch, on which a recessed arc-shaped piece is integrally connected. The outer wall of the arc-shaped piece is an assembly wall. The top surface of the hollow steel box has two insertion ports, and multiple folded plates are inclinedly positioned between the front and rear folded-line notches. The emergency sparse-density reinforcement method in this invention involves a quantitative configuration process based on the width between two broken rebar ends and the fracture depth in the beam fracture area, specifying the number of emergency reinforcement units, the number of subsequent rebars, and their connection positions.

The invention relates to a clothes treatment device, particularly provides a clothes treatment device and a control method thereof, and aims to solve the problem that a door body of an existing clothes care device is not easy to open. In order to achieve the purpose, the control method of the clothes processing device comprises the following steps that the opening and closing state of a door body of the clothes processing device is determined according to whether preset conditions are met or not; when a human body is detected near the clothes treating device, it is indicated that the user approaches the clothes treating device and prepares to use the clothes treating device, and therefore the door body is automatically opened. Furthermore, by judging whether the human body meets the preset state or not, the device can recognize the door opening intention of the user more accurately, and the accuracy of intelligent response is further improved. Furthermore, after the clothes processing device completes processing, the system flexibly controls door opening according to the ventilation state, if ventilation is not started, the door is actively opened to eliminate the air pressure difference inside and outside the cavity, a user can easily open the door body, and therefore user experience and use safety are ensured.

This utility model provides a bracket assembly, a mounting structure, and a lighting device. The bracket assembly includes a bracket body and a locking member for mounting a lamp body. The bracket body includes a base, a stop portion, and a first connecting portion and a second connecting portion disposed on both sides of the base. The base, the first connecting portion, and the second connecting portion form a receiving area. The first connecting portion and the second connecting portion are respectively provided with a first protrusion and a second protrusion. The second connecting portion has a through hole. The locking member passes through the through hole and engages with the stop portion. The first protrusion is engaged with one side wall of the lamp body. The second protrusion is engaged with the other side wall of the lamp body. The first connecting portion is fixedly connected to the base, and the second connecting portion is movably connected to the base. The locking member forces the second protrusion towards the side wall of the lamp body, so that the second connecting portion, together with the first connecting portion, clamps the lamp body. The bracket assembly adopts a clamping and fastening installation method, which solves the problem that the bracket needs to slide in from both ends of the lamp body and be fixed with screws inserted into the lamp body, resulting in unstable installation.

The utility model relates to the technical field of low borosilicate glass tubes, in particular to a medicinal low borosilicate glass tube with good light shielding performance. Comprising a glass tube, a shading cylinder is arranged on the outer ring of the glass tube in a sleeving mode, a gap exists between the shading cylinder and the glass tube, two sets of mounting frames which are arranged up and down at intervals are arranged on the shading cylinder in the circumferential direction, guide rods are symmetrically arranged on the mounting frames at intervals, and clamping blocks penetrating through the adjacent mounting frames are arranged between the guide rods in a sliding mode; and elastic pieces are arranged between the clamping blocks and the corresponding guide rods. The shading cylinder is additionally arranged on the outer side of the glass tube, and the position between the shading cylinder and the glass tube is fixed by means of the clamping block, so that external light rays are effectively prevented from directly irradiating medicines in the tube, and chemical changes of the medicines caused by illumination are remarkably reduced; the convenient and stable assembly of the glass tube in the shading cylinder and the simple and rapid disassembly operation are realized.

This invention discloses a device and method for monitoring cracks in new and old road surfaces. The device includes a first reinforcing bar, a hollow sleeve, and a second reinforcing bar arranged coaxially. The first reinforcing bar is connected to one end of the hollow sleeve in the form of a piston, and the other end of the hollow sleeve is connected to the second reinforcing bar via a rotating shaft. A laser displacement sensor is installed at the end of the first reinforcing bar, and a liquid sensing device is installed inside the hollow sleeve. By processing the data collected by the laser displacement sensor and the liquid sensing device, crack information is obtained for real-time monitoring of cracks. This invention can be directly buried in the new and old roadbeds to monitor the new and old road surfaces in real time, thereby accurately obtaining road surface crack information and automatically providing crack monitoring information for road maintenance. This allows road surface cracks to be repaired effectively in the early stages, extending the service life of the road surface and ensuring the comfort and safety of road use.

The utility model belongs to the technical field of solder paste detection, and particularly relates to a circuit cover plate and a data processing device for solder paste detection. The circuit cover plate comprises a supporting layer, a protection inner layer, a heat conductor and at least one heat dissipation hole. The protective inner layer is connected to the surface of one side of the supporting layer; a mounting groove is formed in the surface of one side, far away from the supporting layer, of the protective inner layer; the heat dissipation holes sequentially penetrate through the protective inner layer and the supporting layer in the thickness direction; the heat conductor is arranged in the mounting groove; and one side end of the heat conductor is connected and communicated with the drift diameter direction of the heat dissipation holes. The heat conduction and heat dissipation performance of the circuit cover plate can be improved; and the movement stability and safety of heat production components such as the circuit board are ensured.