Non-splashing laminar flow medicine injection nozzle

Abstract

The utility model provides a non-splashing laminar flow medicine injection nozzle which comprises an outer sleeve and an inner sleeve cylinder, the outer diameter of the inner sleeve cylinder is equal to the inner diameter of the outer sleeve, the outer wall of the inner sleeve cylinder and the inner wall of the outer sleeve are attached and fixed to each other, a cylindrical main runner is arranged in the inner sleeve cylinder and penetrates through the two ends of the inner sleeve cylinder, and the inner sleeve cylinder and the inner sleeve cylinder are fixed to each other. The outer sleeve, the inner sleeve cylinder and the main flow channel are coaxial, a plurality of cylindrical capillary holes are evenly distributed in the inner sleeve cylinder in the circumferential direction of the main flow channel, and the cylindrical capillary holes penetrate through the two ends of the inner sleeve cylinder. The medicine injection nozzle has the beneficial effects that the structural design is reasonable, and the problem of liquid splashing at the outlet of the medicine injection nozzle is effectively solved.

Description

Technical Field

[0001] The utility model relates to the field of packaging equipment, in particular to a laminar flow medicine injection nozzle without splashing. Background Art

[0002] In the existing technology, the medicine injection nozzles used on the packaging equipment for packaging traditional Chinese medicine liquid often cause liquid splashing around the injection nozzles due to the defects in the design structure. When the cleaning liquid is discharged from the injection nozzles after the equipment is cleaned, the cleaning liquid will splash around, resulting in the pollution of the equipment surface. Summary of the Invention

[0003] The problem to be solved by the utility model is to provide a laminar flow medicine injection nozzle without splashing, which overcomes the deficiencies in the existing technology.

[0004] To solve the above technical problems, the technical solution adopted by the utility model is: a laminar flow medicine injection nozzle without splashing, including an outer sleeve pipe and an inner sleeve cylinder. The outer diameter of the inner sleeve cylinder is equal to the inner diameter of the outer sleeve pipe. The outer wall of the inner sleeve cylinder is attached to and fixed with the inner wall of the outer sleeve pipe. The inner sleeve cylinder has a columnar main flow channel, and the columnar main flow channel penetrates through both ends of the inner sleeve cylinder. The outer sleeve pipe, the inner sleeve cylinder and the main flow channel are coaxial. A plurality of columnar capillary pores are evenly distributed around the circumference of the main flow channel in the inner sleeve cylinder, and the columnar capillary pores penetrate through both ends of the inner sleeve cylinder.

[0005] Optionally, one end of the inner sleeve cylinder extends out of the outer sleeve pipe.

[0006] Optionally, the end face of the inner sleeve cylinder located inside the outer sleeve pipe has a guiding surface, and the guiding surface is an annular inclined surface inclined from the edge of the inner sleeve cylinder towards the inside of the inner sleeve cylinder. One end of the columnar capillary pore penetrates through the guiding surface.

[0007] The utility model has the advantages and positive effects that: due to the adoption of the above technical solution, the structure design is reasonable, and the problem of liquid splashing at the outlet of the medicine injection nozzle is effectively solved. Brief Description of the Drawings

[0008] Figure 1 is the overall structural schematic diagram of the specific embodiment of the utility model;

[0009] Figure 2 is Figure 1 the internal cross-sectional schematic diagram of

[0010] Figure 3 is Figure 2 the structural schematic diagram from another angle of

[0011] In the figure: 1. Outer sleeve; 2. Inner sleeve cylinder; 2-1. Cylindrical capillary pores; 2-2. Flow guiding surface; 3. Main flow channel. Specific embodiments

[0012] The present utility model will be further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model. In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "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, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0013] As Figure 1 , Figure 2 shown, the present utility model provides a laminar flow injection nozzle that does not splash, including an outer sleeve 1 and an inner sleeve cylinder 2. The outer diameter of the inner sleeve cylinder 2 is equal to the inner diameter of the outer sleeve 1. An integral molding processing technology is adopted between the inner sleeve cylinder 2 and the outer sleeve 1. The outer wall of the inner sleeve cylinder 2 is attached to and fixed to the inner wall of the outer sleeve 1. The inner sleeve cylinder 2 has a cylindrical main flow channel 3 inside. The cylindrical main flow channel 3 penetrates both ends of the inner sleeve cylinder 2. The outer sleeve 1, the inner sleeve cylinder 2, and the main flow channel 3 are coaxial. A plurality of cylindrical capillary pores 2-1 are evenly distributed circumferentially around the main flow channel 3 inside the inner sleeve cylinder 2. The cylindrical capillary pores 2-1 penetrate both ends of the inner sleeve cylinder 2. The cylindrical capillary pores in this application refer to pores with an inner diameter smaller than that of the main flow channel.

[0014] One end of the inner sleeve cylinder 2 extends out of the outer sleeve 1.

[0015] As Figure 3 shown, the end face of the inner sleeve cylinder 2 located inside the outer sleeve 1 has a flow guiding surface 2-2. The flow guiding surface 2-2 is an annular inclined surface that slopes from the edge of the inner sleeve cylinder 2 towards the inside of the inner sleeve cylinder 2. One end of the cylindrical capillary pore 2-1 penetrates the flow guiding surface 2-2.

[0016] According to the Bernoulli equation [p+\frac{1}{2}\rho v^2+\rho gh=C], it can be deduced that under the same inlet pressure, the smaller the aperture, the greater the flow velocity. This conclusion can be drawn from the Bernoulli equation and the basic principles of fluid mechanics. The Bernoulli equation describes the relationship between pressure, height, and velocity in a fluid, indicating that there is an inverse relationship between velocity and pressure in a fluid system. Specifically, when the fluid passes through a smaller aperture, due to the limitation of the aperture, the fluid must accelerate to maintain a certain flow rate, which results in an increase in the flow velocity at the smaller aperture. This is because the total amount (or flow rate) of the fluid is constant within a given time. If the aperture becomes smaller, the cross-sectional area through which the fluid passes decreases. To keep the flow rate unchanged, the fluid velocity must increase.

[0017] In addition, from the perspective of fluid mechanics, the flow rate (volume flow rate) is the product of the flow velocity and the cross-sectional area. If the flow rate remains constant within a given time and the cross-sectional area decreases (i.e., the aperture becomes smaller), then to maintain the flow rate unchanged, the flow velocity must increase. This is because the flow rate is the amount of fluid passing through a certain cross-section per unit time, and this amount is fixed within a certain time. When the cross-section (aperture) decreases, to keep the flow rate unchanged, the fluid must accelerate through the smaller cross-section, thereby increasing the flow velocity.

[0018] In summary, when the inlet pressure remains unchanged, if the aperture becomes smaller, to keep the flow rate unchanged, the fluid must accelerate through the smaller aperture, resulting in an increase in the flow velocity.

[0019] In the above structure, liquid enters the main flow channel 3 and the cylindrical capillary pores 2-1 from one end of the inner sleeve cylinder 2 located inside the outer sleeve pipe 1 with the same water pressure. Since the inner diameter of the cylindrical capillary pores 2-1 is much smaller than that of the main flow channel 3, the water flow velocity in the cylindrical capillary pores 2-1 will be much greater than that in the main flow channel 3. Because the water pressure is lower at the position where the water flow velocity is greater, the water pressure at the outlet of the main flow channel 3 is much higher than that at the outlet of the cylindrical capillary pores 2-1. The high water pressure at the outlet of the main flow channel 3 forms an attraction force on the water flow at the outlet of the cylindrical capillary pores 2-1. In other words, the water flow at the outlet of the cylindrical capillary pores 2-1 forms a constraint and limit on the water flow at the outlet of the main flow channel 3. Therefore, the setting of the cylindrical capillary pores 2-1 can effectively prevent the splashing phenomenon of the medicine injection nozzle. The greater the difference between the inner diameter of the main flow channel 3 and the inner diameter of the cylindrical capillary pores 2-1, the greater the difference between the water flow velocity at the outlet of the main flow channel 3 and the water flow velocity at the outlet of the cylindrical capillary pores 2-1. Consequently, the difference between the water pressure at the outlet of the main flow channel 3 and the water pressure at the outlet of the cylindrical capillary pores 2-1 is also greater. Therefore, the attraction force formed by the high water pressure at the outlet of the main flow channel 3 on the water flow at the outlet of the cylindrical capillary pores 2-1 is also greater. Thus, the designed size of the inner diameter of the cylindrical capillary pores 2-1 needs to meet the requirement that the difference between the inner diameter of the main flow channel 3 and the inner diameter of the cylindrical capillary pores 2-1 can make the attraction force formed by the high water pressure at the outlet of the main flow channel 3 on the water flow at the outlet of the cylindrical capillary pores 2-1 sufficient to offset the outward splashing force of the water flow at the outlet of the main flow channel 3.

[0020] The above has described the embodiments of the present invention in detail, but the content described is only the preferred embodiments of the present invention and cannot be considered as used to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. A laminar flow injection nozzle that does not splash, characterized in that: It includes an outer sleeve and an inner sleeve cylinder. The outer diameter of the inner sleeve cylinder is equal to the inner diameter of the outer sleeve. The outer wall of the inner sleeve cylinder is in contact with and fixed to the inner wall of the outer sleeve. The inner sleeve cylinder has a cylindrical main flow channel therein, and the cylindrical main flow channel penetrates through both ends of the inner sleeve cylinder. The outer sleeve, the inner sleeve cylinder and the main flow channel are coaxial. A plurality of cylindrical capillary pores are evenly distributed circumferentially around the main flow channel in the inner sleeve cylinder, and the cylindrical capillary pores penetrate through both ends of the inner sleeve cylinder.

2. The non-splashing laminar flow injection nozzle according to claim 1, characterized in that: One end of the inner sleeve cylinder extends out of the outer sleeve.

3. The non-splashing laminar flow injection nozzle according to claim 1 or 2, characterized in that: The end face of the inner sleeve cylinder located inside the outer sleeve has a flow guiding surface, and the flow guiding surface is an annular inclined surface that slopes from the edge of the inner sleeve cylinder towards the inside of the inner sleeve cylinder. One end of the cylindrical capillary pore penetrates through the flow guiding surface.

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