High-precision and high-efficiency double-head nozzle

Abstract

The utility model belongs to the technical field of the production of perfumery equipment, concretely relates to high -precision high -efficient double -end nozzle, including the first sleeve and the drop nozzle of sealing connection in the first sleeve below, be equipped with the feed port on the first sleeve, the one end that drop nozzle is connected with the first sleeve is equipped with the movable cavity, be equipped with the through -hole that communicates with the feed port in the first sleeve, be provided with the slide rod of sliding connection in the first sleeve in the through -hole, the one end of slide rod forms the discharge part, the diameter of discharge part is less than the diameter of slide rod, discharge part is located in the through -hole and forms the discharge channel between with the through -hole, the one end of discharge part is connected with the slide rod, the other end of discharge part is provided with the cone frustum part, the cone frustum part sets up towards movable cavity, the cone frustum part extends in the direction of away from discharge part and presents the expansion shape, the diameter of the end face of the cone frustum part away from discharge part is greater than the diameter of through -hole and less than the diameter of movable cavity. Through the setting of above -mentioned component, improve the reliability of nozzle.

Description

Technical Field

[0001] This utility model belongs to the field of perfumery equipment manufacturing technology, specifically relating to a high-precision and high-efficiency dual-head nozzle. Background Technology

[0002] In the field of perfume production dispensing equipment, precise control of the amount of fragrance dispensed is a core requirement. For example, the leak-proof, self-priming, high-precision, high-efficiency dual-head nozzle disclosed in patent publication number CN218222488U utilizes an elastic sealing ring and a sleeve to create negative pressure to prevent fragrance leakage and improve dispensing accuracy. However, in practical applications, the following shortcomings have been found:

[0003] Elastic sealing rings are mostly made of rubber or silicone. Long-term contact with fragrances can cause them to corrode and age, leading to seal failure. This results in inaccurate fragrance dispensing and increases equipment maintenance costs. Utility Model Content

[0004] The purpose of this invention is to provide a high-precision and high-efficiency dual-head nozzle, aiming to solve the technical problem of insufficient reliability of existing high-precision and high-efficiency dual-head nozzles.

[0005] To achieve the above objectives, this utility model provides a high-precision and high-efficiency dual-head nozzle, comprising a first sleeve and a drip nozzle sealed and connected below the first sleeve. The first sleeve has a feed inlet, and the end of the drip nozzle connected to the first sleeve has a movable cavity. The first sleeve has a through hole communicating with the feed inlet, and a slide rod slidably connected to the first sleeve is provided in the through hole. One end of the slide rod forms a discharge part, the diameter of which is smaller than the diameter of the slide rod. The discharge part is located in the through hole and forms a discharge channel with the through hole. One end of the discharge part is connected to the slide rod, and the other end of the discharge part has a truncated cone portion. The truncated cone portion is positioned towards the movable cavity and extends in an expanding manner in the direction away from the discharge part. The diameter of the end face of the truncated cone portion away from the discharge part is larger than the diameter of the through hole and smaller than the diameter of the movable cavity.

[0006] Preferably, an annular stop block is provided above the truncated cone portion, which is sleeved on the slide rod, fixed inside the first sleeve, and located at the end of the through hole near the nozzle. The inner diameter of the annular stop block is the same as the diameter of the through hole. When the outer side of the truncated cone portion is tangent to the through hole, the outer side of the truncated cone portion forms a sealing surface.

[0007] Preferably, the included angle between the sealing surface and the end face of the cone portion away from the discharge portion is 45 degrees to 70 degrees.

[0008] Preferably, the inner hole of the stop block near the truncated cone portion has a mating surface, and the mating surface and the sealing surface form a fitted inclined mating structure to achieve the function of sealing connection between the auxiliary truncated cone portion and the stop block.

[0009] Preferably, the dropper has a first channel communicating with the movable cavity, and a second channel located at the other end of the first channel and communicating with the first channel. The diameter of the first channel is smaller than the diameter of the movable cavity, and the diameter of the second channel is smaller than the diameter of the first channel.

[0010] Preferably, the connection between the first channel and the movable cavity, and the connection between the second channel and the first channel, are chamfered.

[0011] Preferably, the first sleeve contains, in sequence, a clamping block, an elastic element, a connecting slip ring, and an elastic sealing ring facing the nozzle. The two ends of the elastic element are respectively connected to the clamping block and the connecting slip ring. The connecting slip ring is located on the end face of the through hole away from the nozzle. The elastic sealing ring is located between the connecting slip ring and the through hole. A sliding rod is slidably disposed in the through hole, the elastic element, the connecting slip ring, and the elastic sealing ring. The clamping block is fixedly connected to the sliding rod.

[0012] Preferably, a second sleeve is arranged on one side of the first sleeve, the second sleeve is the same as the first sleeve, and a connecting member is provided between the first sleeve and the second sleeve. The connecting member is provided with a feeding channel that connects the first sleeve and the second sleeve through a hole.

[0013] Preferably, the diameter of the end of the feed channel connected to the second sleeve is smaller than the diameter of the feed channel.

[0014] Preferably, the second channel of the dropper in the second sleeve has a different diameter than the second channel of the dropper in the first sleeve.

[0015] The high-precision, high-efficiency dual-head nozzle provided in this embodiment of the invention has at least one of the following technical effects:

[0016] This high-precision, high-efficiency dual-head nozzle, through an innovative sliding rod structure, employs a method where the conical part and the stop block press against each other to create negative pressure and prevent fragrance leakage. This replaces the existing method of using an elastic sealing ring with a sleeve to create negative pressure and prevent fragrance leakage. This avoids the risk of leakage due to corrosion, high temperatures, or friction from long-term use of the elastic sealing ring, which can lead to aging and deformation and ultimately seal failure. By using a method where the conical part engages with the stop block in the first sleeve, the risk of leakage caused by material aging is eliminated, extending the equipment's service life and reducing after-sales costs. While simplifying the structure and component assembly process and reducing costs, it also improves the equipment's reliability, precision, and environmental adaptability. Furthermore, by chamfering the stop block, the contact area between the conical part and the sleeve is increased, improving the sealing performance.

[0017] The high-precision and high-efficiency dual-head nozzle of this invention increases the output of spices per unit time and improves feeding efficiency by using two nozzles in parallel. At the same time, with the cooperation of the cone-shaped part and the sleeve stop, it is possible to freely choose to open both nozzles at the same time or use either nozzle for feeding. By setting the diameter of the two nozzle outlet channels, one outlet nozzle has a large diameter, which is responsible for the large flow and fast feeding in the early stage, and the other outlet nozzle has a small diameter, which is responsible for controlling the feeding accuracy in the later stage, thus improving the feeding speed while ensuring feeding accuracy.

[0018] The high-precision and high-efficiency dual-head nozzle of this invention eliminates the bottom wall of the groove in the prior art, making the overall structure simpler. At the same time, the flow of fragrance is reduced by one obstruction surface, making the channel smoother and avoiding blockage.

[0019] This high-precision, high-efficiency dual-head nozzle, through the setting of the discharge channel diameter of a single nozzle—the second channel diameter being smaller than the first—increases the flow velocity of the fragrance as it flows through, allowing the fragrance to form a relatively stable liquid column or droplet at the nozzle outlet. This facilitates precise control of the amount of fragrance dispensed each time, improving dispensing accuracy, and is particularly suitable for fragrance and pharmaceutical applications where strict dosage requirements are necessary. Compared to straight-tube nozzles, this structure reduces dripping disturbances caused by uneven flow rates and pressure fluctuations, such as preventing continuous dripping or inconsistent drop volume, resulting in more uniform and controllable dispensing. Furthermore, when dispensing stops, the fragrance remains more stably in the nozzle's dispensing position, awaiting precise release next time. For some volatile and highly fluid fragrances, this structure reduces natural dripping during non-dispensing periods. Combined with the closing action of the conical section and the sleeve, this better controls the timing of fragrance release. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A perspective view of a high-precision, high-efficiency dual-head nozzle provided for an embodiment of this utility model.

[0022] Figure 2 A side view of a high-precision, high-efficiency dual-head nozzle provided in an embodiment of this utility model.

[0023] Figure 3 for Figure 2 Sectional view at point AA.

[0024] Figure 4 for Figure 3 Enlarged view of point B in the middle.

[0025] Figure 5 A front view of the slide bar in a high-precision, high-efficiency dual-head nozzle provided for an embodiment of this utility model.

[0026] Figure 6 A partial cross-sectional view of a high-precision, high-efficiency dual-head nozzle provided in an embodiment of this utility model.

[0027] The following are the labeling elements in the figure:

[0028] 10—First Sleeve 11—Abutting Block 12—Elastic Element 13—Connecting Slip Ring

[0029] 14—Elastic sealing ring; 15—Through hole; 16—Slide rod; 161—Discharge section; 162—Frustum section

[0030] 163—Connector; 164—Groove; 17—Stop; 18—Drip tip; 181—Moving cavity

[0031] 182—First Channel; 183—Second Channel; 20—Second Sleeve; 30—Connector

[0032] 31—Feeding channel. Detailed Implementation

[0033] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0034] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0036] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0037] In one embodiment of this utility model, such as Figure 1-6 As shown, a high-precision and high-efficiency dual-head nozzle is provided, including a first sleeve 10 and a drip nozzle 18 sealed and connected below the first sleeve 10. The first sleeve 10 has a tubular structure, and a feed inlet is provided on the side wall of the first sleeve 10, which is perpendicular to the first sleeve 10. The end of the drip nozzle 18 connected to the first sleeve 10 has a movable cavity.

[0038] The first sleeve 10 is provided with a through hole 15 communicating with the feed port. The diameter of the through hole 15 is smaller than the inner diameter of the first sleeve 10. A slide rod 16 is provided in the through hole 15 and is slidably connected in the first sleeve 10.

[0039] One end of the slide rod 16 has a discharge section 161, the diameter of which is smaller than the diameter of the slide rod 16. The discharge section 161 is located in the through hole 15 and forms a discharge channel with the through hole 15. One end of the discharge section 161 is connected to the slide rod 16, and the other end has a truncated cone section 162. The truncated cone section 162 is positioned towards the movable cavity and extends in an expanding manner away from the discharge section 161. The diameter of the end face of the truncated cone section 162 away from the discharge section 161 is larger than the diameter of the through hole 15 but smaller than the diameter of the movable cavity. The angle formed between the sealing surface and the end face of the truncated cone section 162 away from the discharge section 161 is 45 degrees to 70 degrees. In this embodiment, the angle is 60 degrees.

[0040] The end of the truncated cone portion 162 away from the discharge portion 161 is provided with a connector 163. The diameter of the connector 163 is larger than the maximum diameter of the truncated cone portion 162 and smaller than the diameter of the movable cavity. The connector 163 is provided with a groove 164 with an opening facing the drip nozzle 18.

[0041] Above the truncated cone portion 162, there is an annular stop 17 that is sleeved on the slide rod 16, fixed inside the first sleeve 10, and located at the end of the through hole 15 near the nozzle 18. The inner diameter of the stop 17 is the same as the diameter of the through hole 15. The inner hole of the stop 17 near the end of the truncated cone portion 162 has a mating surface. The mating surface is formed by a chamfering process. The mating surface and the sealing surface form a fitted inclined mating structure to assist the truncated cone portion 162 and the stop 17 in achieving the sealing function.

[0042] By innovating the structure of the slide bar 16, when the slide bar 16 moves away from the nozzle 18, the truncated cone 162 can enter the stop block 17 a certain distance, improving the sealing effect between the truncated cone 162 and the through hole 15. At the same time, the mating surface and the sealing surface form a suitable inclined mating structure, assisting the truncated cone 162 and the stop block 17 in achieving the sealing function. The method of using the truncated cone 162 and the stop block 17 in the first sleeve 10 to form negative pressure to prevent fragrance leakage replaces the method of using an elastic sealing ring and sleeve to form negative pressure to prevent fragrance leakage in the existing technical solution. This avoids the aging and deformation of the elastic sealing ring due to fragrance corrosion, high temperature or friction after long-term use, which leads to sealing failure. After changing to the method of the truncated cone 162 and the stop block 17 in the first sleeve 10, the risk of leakage caused by material aging can be eliminated, the service life of the equipment can be extended, and after-sales costs can be reduced. While simplifying the structure and component assembly process and reducing costs, the reliability, accuracy and environmental adaptability of the equipment are improved.

[0043] Meanwhile, the material is discharged by setting a discharge section 161 at one end of the round rod 16 near the nozzle 18, eliminating the bottom wall of the groove used for discharge in the prior art, making the overall structure simpler. At the same time, the fragrance has one less obstruction surface during the flow process, making the channel smoother and avoiding blockage.

[0044] The dropper 18 has a first channel 182 communicating with the movable cavity, and a second channel 183 located at the other end of the first channel 182 and communicating with it. The diameter of the first channel 182 is smaller than the diameter of the movable cavity, and the diameter of the second channel 183 is smaller than the diameter of the first channel 182. The connection between the first channel 182 and the movable cavity, and the connection between the second channel 183 and the first channel 182, are chamfered. By setting the diameter of the discharge channel of the dropper 18, the diameter of the second channel 183 is smaller than that of the first channel 182. When the fragrance flows through, the flow rate will increase due to the narrowing of the channel, allowing the fragrance to form a relatively stable liquid column or droplet at the outlet of the dropper. This facilitates precise control of the amount of fragrance dispensed each time, improving the dispensing accuracy, and is especially suitable for fragrance and pharmaceutical applications with strict dosage requirements. Compared with straight-tube droppers, this structure can reduce the dripping disorder caused by uneven flow rate and pressure fluctuations, such as avoiding continuous dripping or fluctuating drip volume, making the dispensing more uniform and controllable. At the same time, when feeding stops, the fragrance can be more stably retained in the dripper position, waiting for the next precise release. For some volatile and highly fluid fragrances, this structure can reduce their natural dripping in the non-drip state. Combined with the closing action of the cone part 162 and the first sleeve 10, the timing of fragrance release can be better controlled.

[0045] The first sleeve 10 has a contact block 11, an elastic element 12, a connecting slip ring 13, and an elastic sealing ring 14 arranged sequentially in the direction of the dropper 18. The elastic element 12 is a compression spring, which is used to realize the automatic reset of the slide rod 16. The two ends of the elastic element 12 are connected to the contact block 11 and the connecting slip ring 13 respectively. The connecting slip ring 13 is located on the end face of the through hole 15 away from the dropper 18. The elastic sealing ring 14 is located between the connecting slip ring 13 and the through hole 15. The slide rod 16 is slidably disposed in the through hole 15, the elastic element 12, the connecting slip ring 13, and the elastic sealing ring 14. The contact block 11 and the slide rod 16 are fixedly connected by a threaded engagement.

[0046] A second sleeve 20 is arranged on one side of the first sleeve 10. The second sleeve 20 is identical to the first sleeve 10. A connecting member 30 is provided between the first sleeve 10 and the second sleeve 20. In this embodiment, the first sleeve 10, the second sleeve 20, and the connecting member 30 are integrally formed. The connecting member 30 has a feeding channel 31 that connects the first sleeve 10 and the second sleeve 20 through a hole 15. The diameter of the end of the feeding channel 31 connected to the second sleeve 20 is smaller than the diameter of the feeding channel.

[0047] In this embodiment, the diameter of the second channel 183 of the dripper 18 in the second sleeve 20 is larger than the diameter of the second channel 183 of the dripper 18 in the first sleeve 10. By setting the two sleeves and the different diameters of the second channels 183 in the two sleeves, the output of fragrance per unit time of the dripper 18 is increased, and the feeding efficiency is improved. At the same time, when the high flow rate is high and the material is discharged quickly in the early stage, the two drippers 18 discharge material at the same time. When the material is about to be discharged, the diameter of the second channel 183 in the first sleeve 10 is small, which is responsible for controlling the discharge accuracy in the later stage. Thus, the discharge speed is improved while ensuring the discharge accuracy.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-precision, high-efficiency dual-head nozzle, comprising a first sleeve (10) and a drip nozzle (18) sealed and connected below the first sleeve (10), wherein the first sleeve (10) is provided with a feed inlet, and the end of the drip nozzle (18) connected to the first sleeve (10) is provided with a movable cavity (181), characterized in that: The first sleeve (10) is provided with a through hole (15) communicating with the feed inlet. A slide rod (16) is slidably connected in the first sleeve (10) through the through hole (15). One end of the slide rod (16) forms a discharge part (161). The diameter of the discharge part (161) is smaller than the diameter of the slide rod (16). The discharge part (161) is located in the through hole (15) and forms a discharge channel with the through hole (15). One end of the material section (161) is connected to the slide rod (16), and the other end of the material discharge section (161) is provided with a truncated cone section (162). The truncated cone section (162) is positioned toward the movable cavity (181). The truncated cone section (162) extends in an expanding manner in the direction away from the material discharge section (161). The diameter of the end face of the truncated cone section (162) away from the material discharge section (161) is greater than the diameter of the through hole (15) and smaller than the diameter of the movable cavity (181).

2. The high-precision, high-efficiency dual-head nozzle according to claim 1, characterized in that: Above the truncated cone (162) is an annular stop (17) sleeved on the slide rod (16), fixed inside the first sleeve (10), and located at the end of the through hole (15) near the nozzle (18). The inner diameter of the annular stop (17) is the same as the diameter of the through hole (15). When the outer side of the truncated cone (162) is tangent to the through hole (15), the outer side of the truncated cone (162) forms a sealing surface.

3. The high-precision, high-efficiency dual-head nozzle according to claim 2, characterized in that: The angle between the sealing surface and the end face of the cone portion (162) away from the discharge portion (161) is 45 degrees to 70 degrees.

4. The high-precision, high-efficiency dual-head nozzle according to claim 2, characterized in that: The inner hole of the stop block (17) near the cone part (162) has a mating surface. The mating surface and the sealing surface form a fitted inclined mating structure to achieve the function of sealing connection between the auxiliary cone part (162) and the stop block (17).

5. The high-precision, high-efficiency dual-head nozzle according to claim 1, characterized in that: The dropper (18) has a first channel (182) that communicates with the movable cavity (181) and a second channel (183) that is located at the other end of the first channel (182) and communicates with the first channel (182). The diameter of the first channel (182) is smaller than the diameter of the movable cavity (181), and the diameter of the second channel (183) is smaller than the diameter of the first channel (182).

6. The high-precision, high-efficiency dual-head nozzle according to claim 5, characterized in that: The connection between the first channel (182) and the movable cavity (181), and the connection between the second channel (183) and the first channel (182) are chamfered.

7. The high-precision, high-efficiency dual-head nozzle according to claim 1, characterized in that: The first sleeve (10) is provided with abutment block (11), elastic element (12), connecting slip ring (13), and elastic sealing ring (14) in sequence facing the dropper (18). The two ends of the elastic element (12) are connected to the abutment block (11) and the connecting slip ring (13) respectively. The connecting slip ring (13) is located on the end face of the through hole (15) away from the dropper (18). The elastic sealing ring (14) is located between the connecting slip ring (13) and the through hole (15). The slide rod (16) is slidably disposed in the through hole (15), elastic element (12), connecting slip ring (13), and elastic sealing ring (14). The abutment block (11) and the slide rod (16) are fixedly connected.

8. The high-precision, high-efficiency dual-head nozzle according to claim 1, characterized in that: The first sleeve (10) is provided with a second sleeve (20) on one side. The second sleeve (20) is the same as the first sleeve (10). A connector (30) is provided between the first sleeve (10) and the second sleeve (20). The connector (30) is provided with a feeding channel (31) that connects the first sleeve (10) and the second sleeve (20) through a hole (15).

9. The high-precision, high-efficiency dual-head nozzle according to claim 8, characterized in that: The diameter of the end of the feed channel (31) connected to the second sleeve (20) is smaller than the diameter of the feed channel (31).

10. The high-precision, high-efficiency dual-head nozzle according to claim 8, characterized in that: The diameter of the second channel (183) of the dropper (18) in the second sleeve (20) is different from that of the second channel (183) of the dropper (18) in the first sleeve (10).

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