9results about How to "Good seal" patented technology

This utility model relates to a rotary double-compartment preservation bottle, including a feeding compartment; a separating membrane, sealed at the opening of the feeding compartment; an upper compartment sleeve, a shell structure, which is rotated and sealed onto the feeding compartment to form the upper compartment, with the separating membrane located between the upper and lower compartments. The side wall of the upper compartment sleeve is provided with a deformable part, which moves to the center of the upper compartment under the action of external force, reducing the volume of the upper compartment, and resetting after the external force is removed; a guide member, located in the upper compartment and fixedly connected to the lower compartment; and a puncturing member, movably installed on the guide member, which has a puncture part facing the separating membrane. The upper compartment sleeve is drivenly connected to the puncturing member. When the upper compartment sleeve rotates in a first direction, under the guidance and limitation of the guide member, the upper compartment sleeve drives the puncturing member to move towards the separating membrane. After the puncturing part punctures the separating membrane, the upper compartment and the lower compartment are connected, avoiding leakage of the material during the connection of the two compartments and requiring less force. When pouring out the material, it is easy to control the amount of material discharged.

The utility model provides a kind of pullable inspection window of screw machine, it relates to screw conveyor field, the pullable inspection window of this screw machine, including cylinder section, the outside fixed connection of cylinder section has mounting bracket, the outside fixed connection of cylinder section has observation window door, the top of observation window door is equipped with sealing groove, the inside of observation window door is equipped with first inclined surface groove, the outside fixed connection of first inclined surface groove has two butt plates, the side fixed connection of mounting bracket has first oil cylinder, the outside fixed connection of first oil cylinder has mounting sleeve, the pullable inspection window of this screw machine does not need operating personnel to be assisted with special tool to carry out tedious manual disassembly, it is greatly saved to open the time of inspection window, improves operating efficiency sealing groove in sealing mechanism and sealing plate cooperation, can effectively block material leakage and external impurities enter, the fitment of first inclined surface groove and second inclined surface groove increases sealing contact area, further enhances the tightness of sealing.

This utility model discloses a filter fastening and adjustment mechanism for a bag filter dust collector, including a tube sheet with a through hole inside. An outer annular groove is formed above the outside of the through hole inside the tube sheet, and the outer annular groove communicates with the through hole. A filter bag is placed inside the through hole of the tube sheet. The filter bag includes a bag body and a bag opening ring edge, which are sewn together. The bag opening ring edge is located inside the outer annular groove. A frame mounting plate is provided above the bag opening ring edge, and the frame mounting plate is annular. A fastener is provided above the frame mounting plate, and the fastener includes a lower pressure plate, an upper pressure plate, and a rubber ring. The rubber ring is fixedly installed above the lower pressure plate. This mechanism achieves filter fastening capability, increases practicality, and solves the problem that traditional bag filter dust collectors often use simple bolt and nut fastening or spring compression methods, resulting in poor practicality.

This utility model discloses a respiratory spray device, relating to the field of respiratory medicine technology. It includes a nebulizer body with a limiting cap snapped onto its top. A limiting device is threaded onto one side of the limiting cap, and a mist outlet is fixedly connected to the side of the nebulizer body. Through the design of a filter and filtration components, this utility model achieves purification and safety during operation. The filtration components accurately intercept impurities mixed with the medication from the outside, such as airborne dust, fibers, and tiny foreign objects that may be introduced when the medicine bottle is opened, ensuring extremely high purity of the medication injected into the nebulizer body and preventing impurities from interfering with the nebulization effect. The organic cotton filter inside the filter deeply filters any remaining un-nebulized droplets and fine impurity particles in the mist after nebulization, effectively removing components that may irritate the respiratory mucosa and significantly reducing patient discomfort when inhaling the mist.

The utility model discloses a heat collecting head assembly and stirling refrigerating plant, including a plurality of sets of heat collecting module, the heat collecting module includes connecting cover no.

The utility model provides a kind of puncture sampling catheter, belong to puncture sampling catheter technical field, the puncture sampling catheter includes: main pipe body, inner needle assembly, rotating handle, sealing cover and fixed seat;The main pipe body is hollow cylindrical structure, the distal end of main pipe body is equipped with bevel opening, and the proximal end of main pipe body is equipped with connecting port;The inner needle assembly includes needle and needle handle, needle and needle handle are fixedly connected, and the needle can be slidably arranged in the inner cavity of main pipe body;The proximal end connecting port of main pipe body is fixedly connected with rotating handle;Sealing cover is installed at the proximal end connecting port of main pipe body by thread connection, and the center of sealing cover is provided with through-hole, needle handle passes through the through-hole of sealing cover center and is connected with fixed seat;The fixed seat is arranged outside sealing cover, and the utility model solves the technical problem that the puncture sampling catheter in prior art exists sampling precision is not high, and operation is not flexible.

The utility model relates to agricultural machinery technical field, concretely is a kind of sealing positioning assembly, including driving box and driven box, first convex edge is equipped on driving box, second convex edge is equipped on driven box, sealing ring is clamped between first convex edge and second convex edge, a plurality of first taper holes are set up on first convex edge, a plurality of second taper holes are set up on second convex edge, corresponding first taper hole and second taper hole are provided with positioning mechanism between, and positioning mechanism includes pin sleeve, two resistance plugs, two pressure sleeves and threaded rod.The sealing positioning assembly is positioned by the positioning mechanism set, makes the pin sleeve in positioning mechanism vertical through first taper hole and second taper hole, and two ends are fastened by resistance plug cooperation pressure sleeve, threaded rod and nut, can limit the relative displacement between driving box and driven box due to torque, maintain the good sealing state of sealing ring, avoid the sealing failure problem caused by misplacement.

The utility model belongs to the field of valve especially a double inclined plane wedge elastic sealing gate valve, in view prior art gate valve is easy to appear leakage problem. Meanwhile, the sealing effect between the gate and the valve body still needs to be further improved to cope with the problem of fluid pressure change under different working conditions, the present scheme is proposed, it includes, the valve body, both sides and the top of valve body are open setting, the top of valve body is fixedly connected with upper valve seat through connecting assembly, the top opening of upper valve seat and valve body fixed communication, the top of upper valve seat is fixedly connected with connecting seat. In the utility model, both sides of the gate are inclined plane, which is tightly attached to the inner wall of the valve body, and a first annular sealing ring is fixedly sleeved on both sides of the gate, when the valve is closed, the sealing effect between both sides of the gate and the inner wall of the valve body can be improved, the convex plate drives the arc block to move downward and stretch the tension spring, so that the sealing gasket on the outer wall of the arc block is extruded against the inner wall of the bottom of the valve body, and the sealing performance of the device is improved again.

The utility model relates to the field of kitchen small household electrical appliances, and specifically discloses an inner cover assembly preventing air leakage of a sealing ring, an upper cover structure of an electric rice cooker and the electric rice cooker, wherein the inner cover assembly comprises a cover plate and a sealing ring for sealing a pot opening of an inner pot of the electric rice cooker, the cover plate has an annular mounting surface extending in the up-down direction, the sealing ring is fitted on the mounting surface and has a fitting surface attached to the mounting surface, an arc-shaped sealing skirt is arranged on the fitting surface and is raised upward, the sealing skirt has a fixed end and a sealing end, and the thickness of the sealing skirt gradually decreases from the fixed end to the sealing end, and in the fitting state, the sealing end of the sealing skirt is bent downward and attached to the mounting surface. The sealing skirt can better adapt to the shape of the mounting surface during assembly and reduce the generation of gaps.