15results about How to "Guaranteed occlusion" patented technology

The invention provides an optical lens. The optical lens can be used for near-infrared band imaging, the optical lens comprises a lens barrel, a lens group and a spacing element group, the lens group and the spacing element group are located in the lens barrel, and a first spacing element is located between a first lens and a second lens and makes contact with one part of the image side face of the first lens; the minimum distance EP01 between the object side end face of the lens barrel and the first spacing element in the extension direction of the optical axis, the maximum thickness CP1 of the first spacing element, and the air interval T12 between the first lens and the second lens on the optical axis satisfy the following condition: 0.56 < = EP01 / (T12 + CP1) < = 1.01. The curvature radius R1 of the object side face of the first lens, the refractive index N1 of the first lens and the inner diameter d1s of the object side face of the first spacing element meet the condition that R1 * N1 / d1s is larger than or equal to-4.44 and smaller than or equal to-1.71. According to the invention, the problem of serious stray light caused by reduction of aberration in an optical lens in the prior art is solved.

The utility model relates to the field of electronic equipment, aims to solve the problem that dust easily enters equipment or leaks light when a light filtering assembly is pulled out, and provides a skin treatment device which comprises a device body, the light filtering assembly and a flexible shielding piece. The device main body is provided with a plugging port and a slot, and the plugging port is communicated with the slot; and a concave avoiding space is arranged at the inlet of the slot. The light filtering assembly is configured to be inserted into the slot in a matched mode from the insertion and extraction opening or be extracted from the slot. The flexible shielding piece comprises a connecting part and a flexible blocking piece, the connecting part is connected to the device body and located on the side, close to the avoiding space, of the inlet of the inserting groove, one side of the flexible blocking piece is connected to the connecting part, and the other side of the flexible blocking piece extends out of the connecting part to shield the inlet of the inserting groove or is pushed by the light filtering assembly to be contained in the avoiding space when the light filtering assembly is inserted. The beneficial effects of the utility model are that the shielding of the slot can be maintained in the state that the light filtering assembly is pulled out, and the dustproof and light leakage prevention effects are good.

The utility model discloses a water conservancy emergency anti-flood wall, and relates to the technical field of water conservancy projects. The device comprises a left supporting stand column and a right supporting stand column. Positioning hole seats are fixed on the front and rear sides of the lower ends of the supporting columns; a mounting through groove is formed in the side part of the supporting stand column along the vertical direction; the horizontal section of the mounting through groove is arc-shaped, and the central angle of the mounting through groove is greater than 180 degrees; the upper and lower ends of the mounting through groove respectively penetrate through the upper and lower ends of the supporting stand column; a supporting sleeve is rotationally sleeved in the mounting through groove; the horizontal section of the supporting sleeve is arc-shaped; the side part of the supporting sleeve extends out of the side part of the mounting through groove; a plurality of water retaining assemblies are arranged between the two supporting sleeves; the water retaining assembly comprises a water retaining guard plate which is transversely arranged; the left and right ends of the water retaining guard plate are respectively connected with positioning insertion columns; and the positioning insertion columns are correspondingly inserted into the supporting sleeves on the same side. The flood intercepting device has the advantages that the flood intercepting angle can be changed, intercepting barriers suitable for various angles can be easily combined and erected, and the application range is wide.

The utility model discloses a table type water purifying and drinking machine which comprises a machine shell with a containing cavity, an installation support arranged in the containing cavity and a top plate arranged on the top of the machine shell, an installation hole located above the installation support is formed in the top plate, a guide ring is further arranged on the top plate, and the guide ring penetrates through the installation hole to extend towards the installation support. The filter element is mounted on the mounting bracket through the mounting hole. The filter element penetrating through the mounting hole is guided through the guide ring, the filter element is guided to vertically move towards the filter element mounting position on the mounting bracket, the filter element is prevented from inclining or horizontally moving, and the guide ring penetrates through the mounting hole and extends towards the mounting bracket, so that a gap between the bottom of the top plate and the top of the mounting bracket can be filled; the gap between the filter element and the filter element is prevented from being too large to generate segment difference, so that the end part of the filter element is prevented from being clamped in the gap in the mounting process to cause assembly blockage, the mounting difficulty of the filter element is reduced, and the mounting is smoother when the filter element is replaced by a user.

A light bar dispensing process includes the following steps: first add the mixed glue into a vacuum degassing mixer, then add the fluorescent powder, vacuum degassing and stirring to mix evenly, remove the remaining bubbles in the fluorescent glue and the bubbles in the dispensing machine cavity, test the fluorescent glue on the machine, add the fluorescent glue into the dispensing machine cavity, load the material to be dispensed into the feeding rack, debug the position of the Y / Z / W three-axis of the dispensing head of the dispensing machine, and use the dispensing machine camera to align the material to be dispensed, set the number of chip recognitions according to the number of lights of the material to be dispensed, and then use the recognition chip image alignment correction method to determine the needle position for dispensing, and then bake the material after dispensing, and the dispensing is completed after the dispensing is taken out of the oven to obtain a light bar with good dispensing. The dispensing process of this application enables the chip to be completely covered by glue, thereby ensuring that the glue completely blocks the chip.

The present invention relates to the technical field of bag dust collectors, and in particular to a bag breakage monitoring device for coal mill bag dust collectors and a method thereof. The technical scheme includes: a housing, a support column, a placement hole, a fixing plate, a bearing plate and a connecting plate, the upper end outer wall of the bearing plate is equipped with a support column distributed in a rectangular array, a dust bag is placed inside the placement hole, a sleeve is provided on one side outer wall of the support column, an electric push rod is installed on the upper end of the outer wall of one side of the sleeve, a fixing plate is installed on one side of the outer wall of the lower end of the electric push rod, a connecting rod is movably installed inside the movable hole, and a connecting plate is installed on the lower end outer wall of the connecting rod. By arranging the sleeve, the pressure sensor and the connecting plate, the effect of facilitating the detection of the dust bag is achieved, ensuring that the state of the dust bag can be detected in time, and ensuring that the damaged dust bag can be shielded, ensuring the normal use of the normal dust bag, and shortening the downtime of the equipment.

The invention provides a circuit breaker with an anti-overheating protection function, and relates to the technical field of circuit breakers. And two fixing screw rods are inserted into the shell and are fixed in the distribution box in a threaded manner. Through the arrangement of the second protection assembly, on one hand, when a circuit needs to be connected, a second pressing block is pressed, the second pressing block moves downwards and extrudes a first pressing block, when the first pressing block moves downwards, a clamping groove in a connecting rod is connected with two wire holders in a clamped mode, electrification is completed at the moment, and fingers of a person cannot be scalded under the protection of the second pressing block; on the other hand, when the hand of a person presses a second pressing block, an anti-skid groove can play an anti-skid role, and compared with an existing device, the device has an overheating protection function and is higher in safety; and through the arrangement of the indication assembly, when the connecting rod moves upwards to complete circuit breaking, the first pressing block extrudes the contact switch to complete electrification of the indication lamp, and the indication lamp is turned on at the moment, so that workers are conveniently prompted, and the practicability is high.

The utility model provides a kind of dustproof device for decoration hole, it is related to decoration tool technical field, the dustproof device for decoration hole includes supporting member and sheltering member, the supporting member is limited to part, the bottom surface of the limiting part and the top surface of decoration board are in abutment;The sheltering member is connected with the supporting member, the sheltering member is compatible with the decoration hole on the decoration board, for the sheltering of the decoration hole;The utility model is cooperated by supporting member and sheltering member, not only firm installation, strong anti-interference ability, but also can guarantee close fitting when using, dustproof effect is remarkable, while simple structure, convenient operation, adaptive flexible, strong versatility.

A brake pad powder mixing machine comprises a mixing tank, a feeding port in the top of the mixing tank is provided with a feeding cover with a side opening, an inclined sliding way is arranged between the side opening of the feeding cover and the ground, a U-shaped frame is hinged to a feeding hopper, the top of the U-shaped frame can only swing on the upper surface of the feeding hopper, and the U-shaped frame is connected with a feeding winding mechanism through a steel wire rope. The inclined slide way comprises straight slide rails which are symmetrically arranged left and right in a manner that notches are opposite, the straight slide rails are profiles with U-shaped sections, the straight slide rails only comprise upper wing plates and webs on the inner side of a side inlet of the feeding cover, upper rollers of the feeding hopper are arranged in grooves of the straight slide rails in a sliding manner, and lower rollers of the feeding hopper are positioned on the upper surfaces of the upper wing plates of the straight slide rails; the distance between the outer ends of the rotating shafts of the two lower rollers is larger than the side opening of the feeding cover, and the weight of the front side of the feeding hopper is smaller than that of the rear side of the feeding hopper. The mixer has the advantages of simple structure, convenience in operation and low cost.

The invention discloses a radiation protection device for a CT examiner, and relates to the technical field of medical radiation protection equipment, the radiation protection device comprises a bottom plate and a radiator mounted at the top of the bottom plate, and the top of the bottom plate is provided with an examination moving mechanism. According to the radiation protection device for the CT examiner, by arranging the telescopic shielding adjusting mechanism, flexible adjustment of the covering range of a shielding area is achieved, the combined covering area of the first lead cloth and the second lead cloth can be accurately adjusted, it is ensured that sensitive organs are completely shielded, meanwhile, an examined part is prevented from being shielded, and the examination efficiency is improved. The problems that when an existing device is used, the size of a thyroid gland shielding part and the size of a gonad shielding part are fixed, due to body type differences of different crowds, thyroid gland and gonad positions and coverage ranges of adults and children and males and females are obviously different, sensitive organs are difficult to completely cover by the shielding parts with the fixed sizes, and the sensitive organs cannot be completely covered by the shielding parts with the fixed sizes are solved. And the protection effect and the diagnosis accuracy are influenced.

The utility model belongs to the field of heat dissipation, particularly relates to a heat dissipation mechanism of a control cabinet, and aims to solve the problems that an existing product has a poorer protection effect on an air inlet and impurities and foreign matters are easy to enter a cabinet body, and provides the following scheme: the heat dissipation mechanism comprises a cabinet body, two sides of the cabinet body are respectively provided with an air inlet and an air outlet; second guide rails are fixedly connected to the two sides of the air inlet, a sliding frame is connected between the two second guide rails in a sliding mode, a heat dissipation fan is fixedly connected between the inner walls of the two sides of the sliding frame, and shielding mechanisms for shielding the air inlet are arranged between the tops of the two second guide rails and between the bottoms of the two second guide rails. The sliding frame drives the check curtain to synchronously move on one side of the air inlet, then the air inlet is kept shielded, foreign matter is prevented from entering the cabinet body, meanwhile, when the filter screen passes through one side of the brush plate, the filter screen can be cleaned through the brush plate, and the use flexibility is improved.

The utility model provides a shielding cover and a water heater comprising the same. The shielding cover is used for shielding a pipeline assembly located below a shell of the water heater in the first direction. The shielding cover comprises a shielding body and a magnetic part. The shielding body comprises a side wall, the side wall extends in the first direction, a containing cavity for containing the pipeline assembly is defined by the side wall, a mounting part extending into the containing cavity is arranged at the end, close to a shell of the water heater, of the side wall, a mounting groove used for containing the magnetic part is formed in the mounting part, an opening of the mounting groove faces the shell, and the magnetic part is exposed out of the opening. The magnetic part is attached to and magnetically attracted to a shell of the water heater and used for fixing the shielding cover to the shell of the water heater. The shielding cover is arranged, so that the exposed pipeline assembly of the water heater can be shielded; by arranging the magnetic piece which is attached to the shell of the water heater and magnetically attracted to the shell, the shielding cover is fixed to the shell, and simple and convenient installation is achieved while the shielding and decoration effects are guaranteed.

This utility model discloses a dustproof HDMI cable connector, belonging to the technical field of HDMI cable connectors. It includes a connector head, one end of which has a connecting wire, and the other end of which has a connecting terminal. A mounting plate is fixed to the end of the connecting terminal near the connector head. It also includes an adjustment mechanism disposed between the mounting plate and the connector head. The adjustment mechanism is used to adjust the retraction and extension of the connecting terminal. A through groove is formed at the end of the connector head away from the connecting wire, and the extended connecting terminal passes through the through groove. A dustproof component is provided inside the through groove to prevent dust from entering when the connecting terminal is retracted or extended. This dustproof HDMI cable connector has good dustproof performance. The connecting terminal can extend outside the connector head during use and can be retracted inside the connector head when not in use, avoiding direct exposure to the outside and preventing dust from entering. This improves the stability of signal transmission during subsequent connections.

This utility model relates to the field of non-magnetic pipe cutting devices, and more particularly to a non-magnetic pipe cutting device with a protective mechanism. The device includes a cutting device body, a cutting unit, and a protective cover. An auxiliary protective component is fitted onto the outside of the protective cover, and the auxiliary protective component is connected to the protective cover via an installation component. In this utility model, the protective cover provides basic protection. Simultaneously, the extension protrusion driven by the spring body continuously pushes one end of the telescopic protective cover to adhere to the outer wall of the non-magnetic pipe to be cut. This facilitates active and dynamic adhesion to the outer walls of pipes of different diameters within a certain range, ensuring that the cutting device body shields the rapidly rotating cutting disc or flying pipe debris during the cutting process.