13results about How to "Increase inner diameter" patented technology

This patent discloses an experimental feeding funnel, comprising: an inlet, a central feeding channel, and an outlet; the inlet is located at the upper end of the experimental feeding funnel; the outlet is located at the lower end of the experimental feeding funnel; the central feeding channel is a Venturi tube structure; the inner diameter of the central feeding channel is smaller than the inner diameters of the inlet and outlet; the inner diameter of the outlet is less than or equal to the inner diameter of the inlet; the outlet of the experimental feeding funnel is fitted onto the mouth of a suitable container for direct or indirect heating experiments for feeding. The experimental feeding funnel provided by this patent is easy to disassemble and clean, meeting both the experimental research needs of natural fragrance raw material extraction and the requirements of large-scale production. It solves the problems of clogging and inability to properly feed large-particle natural fragrance raw materials. The yield of finished fragrance products for tobacco extraction using this experimental feeding funnel is high, reducing waste of natural fragrance raw materials and environmental pollution.

This utility model belongs to the field of pipe processing, specifically a grinding device for the inner wall of automotive pipes. It includes a worktable with a motor fixed to its top. A grinding shaft is installed at the output end of the motor, and a groove is formed on the grinding shaft. Multiple supports are slidably connected inside the groove, and grinding blocks are mounted on the supports. A movable seat is located in the middle of the groove, and a connecting rod is hinged to the surface of the movable seat at a corresponding position on the support. In use, the grinding block is mounted on the support, which can slide within the groove. Rotating the adjusting screw causes the movable seat to move due to the thread action of the screw and the threaded sleeve. A connecting rod is hinged between the movable seat and the support, pushing the grinding block to extend. This improves the fit to the inner diameter of the pipe, broadens its applicability, and facilitates use.

The utility model relates to an exposed injection lead screw assembly and an injection molding machine thereof, the exposed injection lead screw assembly comprises a lead screw and a lead screw nut, the driving end of the lead screw is inserted into a bearing, and a grease injection hole penetrating through the inner side and the outer side is formed in the lead screw nut; the grease injection hole is filled with grease; the bearing is wrapped in a closed oil cavity, and the oil cavity is filled with lubricating oil. By the adoption of the design of the exposed lead screw, only the bearing part is lubricated through the closed oil cavity, the requirement for high-precision sealing is greatly reduced, and a complex cylinder barrel sealing structure in traditional oil immersion lubrication is avoided. Therefore, the processing and assembling difficulty is reduced, and the risk of lubricating oil leakage caused by sealing failure is reduced, so that the manufacturing cost and the maintenance cost are reduced.

The utility model provides a kind of multi-angle adjusting's robot spraying device, it is related to spraying device technical field, and it includes: fixed base;The top end surface of the fixed base is provided with rotary seat;The top end surface of rotary seat is rotatably connected with first rotary arm;The upper portion of first rotary arm is rotatably connected with second rotary arm;Second rotary arm is provided with inlet paint pipe inside;The end of second rotary arm is hingedly connected with spraying head;The feed inlet of spraying head is connected with inlet paint pipe.It is blocked to splashed paint by annular baffle cover, and it is recycled to filter tank by inlet paint pipe by starting control fan, and after filtering and purifying by metal screen and activated carbon adsorption plate, it is recycled, it is convenient to recycle filtered paint, solve the problem that splashed paint will adhere to equipment surface, workshop wall and ground, these paints will form hard paint film after drying and solidification, cause pollution to surrounding environment.

The utility model relates to the technical field of water mist sprayers, in particular to an industrial fire-fighting water mist sprayer which comprises a threaded sleeve, a sprayer body is arranged on the threaded sleeve in a communicated mode, a plurality of mounting holes are formed in the sprayer body, nozzles are arranged in the mounting holes, the nozzles are fixed through a fixing mechanism, and the fixing mechanism is arranged on the threaded sleeve. Elastic sleeves are fixedly connected into the multiple nozzles, cavities are formed in the multiple elastic sleeves, and the cavities are adjusted through an adjusting mechanism. According to the utility model, the inner diameter of the spray hole can be adjusted, and blocked objects can be discharged, so that the spray head can be conveniently maintained.

The application provides a clamp valve, wherein the main body comprises a clamp valve sleeve and an end cover, the clamp valve sleeve is provided with a positioning part, and a clamp groove for placing a pipeline is formed in the side part of the clamp valve sleeve; a pressure head is drivingly connected with a driving member and is movable in the clamp valve sleeve under the driving of the driving member, the pressure head is jointly extruded with the positioning part to extrude the pipeline when moving towards the positioning part; the protective cover comprises a rotating part, a shielding part and a limiting part which are sequentially arranged, the limiting part is rotatably connected with the clamp valve sleeve, the limiting part is provided with an elastic opening with an adjustable inner diameter size, and the elastic opening is detachably clamped with the clamp valve sleeve; when the protective cover is rotated to clamp the elastic opening with the clamp valve sleeve, the shielding part shields the notch of the clamp groove; after the elastic opening is separated from the clamp valve sleeve, the protective cover can be rotated to the shielding part to avoid the notch of the clamp groove. The clamp valve provided by the application avoids the pipeline from falling off from the notch of the mounting groove of the clamp valve, prevents foreign matters from entering the clamp valve from the notch of the mounting groove and clamps the hands of the operating personnel.

The application discloses an intelligent ring, which comprises a ring body and an adjusting mechanism, wherein the ring body is arranged in an open loop mode; the adjusting mechanism comprises a cover plate movably connected between two ends of the open loop of the ring body, a trigger member in clamping cooperation with the cover plate, and a spring opening assembly in transmission connection with the cover plate; the cover plate has a clamping state in clamping cooperation with the trigger member and a disengagement state in disengagement from the trigger member; in the clamping state, the cover plate is located between the two ends of the open loop and compresses the spring opening assembly; in the disengagement state, the spring opening assembly pops the cover plate out from between the two ends of the open loop to the radial outside of the ring body, and the two ends of the open loop can be pulled apart under the action of an external force; wherein when the trigger member is triggered, the cover plate is switched from the clamping state to the disengagement state. The technical scheme of the application can facilitate the user to take off and wear the ring, and improve the user experience.

The utility model discloses an internal arteriovenous fistula internal diameter monitoring and protecting device which comprises a controller and a multifunctional cuff, and the controller is composed of a bandage, a hook-and-loop fastener, a plastic shell, a power button, a touch display screen, a charging interface, an air path interface, a circuit interface, a lithium battery, a single-chip microcomputer, an audio output module, a linear motor, a miniature air pump and a miniature electromagnetic valve. The multifunctional oversleeve is composed of an oversleeve body, a hook-and-loop fastener, an air channel connecting pipe, a circuit connecting pipe, an air bag, an MEMS ultrasonic patch, a flexible film temperature sensor and a graphene far infrared patch, and the circuit connecting pipe and the air channel connecting pipe of the multifunctional cuff are connected with a circuit interface and an air channel interface of the controller respectively. The pressure applied to the internal arteriovenous fistula is adjusted by detecting the inner diameter of the internal arteriovenous fistula, and meanwhile, the internal arteriovenous fistula is irradiated by infrared rays, so that the internal arteriovenous fistula can be monitored and maintained for a long time, and the formation of internal arteriovenous fistula aneurysm is prevented and treated.

The application discloses a kind of protection support devices for tree transplanting, it is related to tree protection support technical field, comprising: adaptive support unit: by anchoring component, fixed limiting component and support component are constituted, by telescopic gas cylinder monitoring tree trunk diameter variation, trigger pneumatic cylinder to release limit, realize the step-by-step adjustment of support inner diameter;Dynamic wind resistance system: based on tree inclination angle, directional water injection counterweight of counterweight box is driven using air pressure, enhance local overturning moment resistance;Intelligent maintenance system: integrated temperature and humidity detector and water storage tank, realize automatic irrigation in dry season, water storage counterweight in rainy season, the device breaks the restraint of rigid support on tree growth, wind resistance stability is improved, reduce artificial maintenance cost, suitable for a variety of different kinds of tree transplanting protection, can guarantee that tree grows stably, safely and healthily under harsh environment.

This utility model relates to the field of medical testing technology and aims to solve the problems of low information signing efficiency, high labor and time costs, and easy introduction of errors in the existing technology of manually entering sample information into the system. The utility model provides a sample ring, which is a ring-shaped structure used to fit over a sample tube. The sample ring has a built-in NFC chip that stores sample information data. The NFC chip is used to cooperate with an NFC device, enabling the NFC device to read the data in the NFC chip and sign for the sample information. This utility model uses an NFC chip to store sample information, accurately recording the sample information. When the NFC chip is brought close to an NFC device, the NFC device can quickly receive the data in the NFC chip and obtain the sample information, eliminating the need for manual entry, improving information signing efficiency, and saving human resources and time costs.

The utility model belongs to the field of all-vanadium liquid flow energy storage units, and discloses an energy storage unit with low leakage loss. Comprising a galvanic pile in a power box, and a galvanic pile liquid inlet branch main pipeline and a galvanic pile liquid outlet branch main pipeline which are connected with the galvanic pile in the power box. After optimization, the electric power of the circulating pump of the all-vanadium redox flow battery is reduced, the efficiency of the battery system is improved, and the height of the power container is reduced by about 15% by canceling a coil pipe structure in the power container on the premise of meeting the optimal leakage loss.

This utility model relates to a hemostatic device for surgery, belonging to the field of medical device technology. It solves the problem in existing technologies where metal vascular clamps cannot be bent, obstructing the surgical field of vision and affecting surgical procedures. This utility model includes a tourniquet and a binding structure. The tourniquet can be connected to the binding structure. The tourniquet can be infinitely adjusted and tightened around the blood vessel. The binding structure is used to lock the tourniquet. The binding structure includes a first connecting seat and a cable tie. The cable tie can pass through the first connecting seat and wrap around the tourniquet. The tourniquet of this utility model can be infinitely adjusted and tightened around the blood vessel. Pulling the free end of the cable tie body tightens the cable tie sleeve, connecting the cable tie body to the tourniquet and locking the tourniquet. The locking teeth connect with the connecting groove, preventing the inner diameter of the cable tie sleeve from increasing, thereby preventing changes in the inner diameter of the occlusion loop and maintaining vascular occlusion.

The utility model discloses a natural gas spray gun cap structure of melting section, including the cap body, the upper end surface outside of cap body is equipped with several groups of air vent, the bottom position of cap body is connected with the gun nozzle body, the upper end outside of gun nozzle body is fixed with locking disc, locking disc about the equal angle of locking disc's center position is equipped with embedding hole, embedding hole and the setting of locking mechanism realize the stable connection between cap body and gun nozzle body, the purpose that the upper side of locking mechanism still is provided with the stretch piece, the upper end outside of stretch piece is fixed in the outside position of cap body. The natural gas spray gun cap structure of melting section is provided with locking mechanism, through the setting of locking mechanism, can realize locking block to adhere in the bottom outside of locking disc, can prevent the phenomenon that cap body and gun nozzle body fall off, in addition through changing the inside diameter of cap body, can improve the coverage of flame.