Nozzle core lock catch structure

Abstract

The utility model aims at providing a nozzle machine core lock catch structure, including axle pipe and lock catch subassembly, lock catch subassembly includes shower nozzle, top cap, sleeve and screw rod, the shower nozzle is equipped with on axle pipe, top cap coaxially is established on the shower nozzle, the sleeve is coaxially and is arranged on the top cap, the screw rod passes through the sleeve and axle pipe end portion axle core position screw joint with coaxial, to make the screw rod push top cap and axle pipe clamping. Thus, can guarantee the shower nozzle in the process of rotating presents the state of floating, to reduce the friction, improve the rotating speed, also can prevent the shower nozzle from driving top cap and separating from the axle pipe.

Description

Technical Field

[0001] This utility model relates to the technical field of cooling devices, and in particular to a nozzle core locking structure. Background Technology

[0002] In critical fields such as refrigeration engineering, HVAC, and industrial heat exchange, hot water heated by equipment heat exchange must undergo cooling treatment to achieve recycling. The core equipment responsible for this cooling task is the cooling tower (also known as a cooling water tower). Its core working principle is to complete the conversion of hot water to cold water through sufficient heat exchange between circulating water and air, ensuring the stable operation of subsequent equipment. Currently, atomizing cooling towers have become the mainstream choice due to their spray ventilation atomization devices. This device relies on hydraulic drive to discharge hot water in the form of atomized jets, allowing the atomized water droplets to come into extensive contact with the surrounding air. By enhancing the heat exchange process, cooling is accelerated, and the cooled water eventually falls back into the tower for the next cycle of recycling. To achieve heat exchange, cooling towers continuously supply upward-flowing cooling air, creating a stable upward airflow field. Existing nozzles typically employ an outward-sloping spray pattern, allowing water to rotate circumferentially as it exits the nozzles. As the water flow increases, the rotation speed also accelerates. Under this sustained high-speed rotation, the nozzles will float. Simultaneously, the atomized water droplets, driven by the upward airflow, exert a reverse upward lifting force on the nozzles, causing the total upward force on the nozzles to far exceed their own weight, resulting in the floating phenomenon.

[0003] However, existing nozzle mechanisms have the following shortcomings in practical use: as the water flow rate from the nozzle gradually increases, its upward force also gradually increases, causing the nozzle to detach from the base. In view of this, the nozzle mechanism locking structure of this application is proposed. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a nozzle core locking structure to prevent the nozzle from detaching, thereby improving the stability and efficiency of equipment use.

[0005] The objective of this utility model is achieved through the following technical solution: A nozzle core locking structure includes: Shaft tube; and A locking assembly includes a nozzle, a top cover, a sleeve, and a screw. The nozzle is sleeved on the shaft tube, the top cover is coaxially disposed on the nozzle, the sleeve is coaxially inserted through the top cover, and the screw coaxially passes through the sleeve and is screwed to the axial position of the end of the shaft tube, so that the screw pushes the top cover and engages with the shaft tube.

[0006] Optionally, the top cover is provided with a protrusion that engages with the shaft tube.

[0007] Optionally, the top cover is provided with a first groove and a second groove, which are coaxially formed. The diameter of the first groove is larger than the diameter of the shaft tube, and the diameter of the second groove is smaller than the diameter of the shaft tube. The depth of the first groove is smaller than the depth of the second groove, so that the protrusion is formed between the first groove and the second groove.

[0008] Optionally, the top cover is further provided with a perforation, the diameter of which is adapted to the outer diameter of the sleeve, and the sleeve is inserted into the perforation.

[0009] Optionally, the sleeve is provided with a retaining ring, the diameter of which is larger than the diameter of the perforation.

[0010] Optionally, the diameter of the screw is adapted to the inner diameter of the sleeve.

[0011] Optionally, the locking assembly further includes a buffer pad, which is sleeved on the screw and located between the retaining ring and the nut of the screw.

[0012] Compared with the prior art, the present invention has at least the following advantages: The nozzle core locking structure of this utility model uses a screw rod to coaxially pass through a sleeve and screw it to the shaft tube, so that the protrusion of the top cover is engaged with the shaft tube. In this way, the nozzle can be kept in a floating state during rotation, thereby reducing friction, increasing rotation speed, and preventing the nozzle from pulling the top cover off the shaft tube. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the nozzle core locking structure according to a new embodiment of the present utility model; Figure 2 A cross-sectional schematic diagram of the nozzle core locking structure according to a new embodiment of this utility model; Figure 3 for Figure 2 A magnified schematic diagram of the structure of part A in the diagram; Figure 4 for Figure 2A magnified schematic diagram of the partial structure of B in the diagram; Figure 5 This is a schematic diagram of the top cover of a new embodiment of the present utility model. Figure 6 This is a schematic diagram of the sleeve structure according to a new embodiment of this utility model.

[0015] Explanation of reference numerals in the attached figures: 1. Nozzle mechanism locking structure; 10. Shaft tube; 20. Nozzle; 21. Top cover; 210. Protrusion; 211. First groove; 212. Second groove; 213. Perforation; 22. Sleeve; 220. Snap ring; 221. Through hole; 23. Screw; 24. Buffer pad. Detailed Implementation

[0016] To facilitate understanding of this utility model, a more comprehensive description will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model.

[0017] 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.

[0018] 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.

[0019] 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.

[0020] like Figures 1 to 6As shown, in one embodiment, a nozzle core locking structure 1 includes a shaft tube 10 and a locking assembly. The locking assembly includes a nozzle 20, a top cover 21, a sleeve 22, and a screw 23. The nozzle 20 is sleeved on the shaft tube 10, the top cover 21 is coaxially disposed on the nozzle 20, the sleeve 22 is coaxially inserted through the top cover 21, and the screw 23 is coaxially inserted through the sleeve 22 and screwed to the axial position of the end of the shaft tube 10, so that the screw 23 pushes the top cover 21 to engage with the shaft tube 10.

[0021] It should be noted that the nozzle 20 has a circular hole at its axial position that passes through both ends. The inner diameter of the circular hole is adapted to the outer diameter of the shaft tube 10. During assembly, the nozzle 20 is coaxially fitted onto the outer circumference of the shaft tube 10 through the circular hole, so that the inner sidewall of the circular hole is tightly fitted with the outer sidewall of the shaft tube 10, ensuring that there is no radial offset between the nozzle 20 and the shaft tube 10. Furthermore, the top cover 21 is coaxially set on the side of the nozzle 20 near the end of the shaft tube 10, and the axial position of the top cover 21 coincides with the axial position of the shaft tube 10 and the nozzle 20. Furthermore, the sleeve 22 is coaxially inserted onto the top cover 21, and one end of the screw 23 is coaxially inserted from the side of the sleeve 22 away from the shaft tube 10, so that it passes through the axial position of the sleeve 22 and extends to the end of the shaft tube 10. The external thread of the screw 23 is screwed into the internal thread preset at the axial position of the end of the shaft tube 10. It should be noted that the shaft tube 10 is installed vertically upwards, so that the side of the top cover 21 closest to the shaft tube 10 will be in contact with the end face of the shaft tube 10 under the weight of itself and the nozzle 20. In this state, as the water flow gradually increases, the height to which the nozzle 20 drives the top cover 21 to float will also gradually increase. After the screw 23 is screwed to the shaft tube 10, the floating nozzle 20 can drive the sleeve 22 upwards through the top cover 21 to abut against the nut of the screw 23, thereby limiting the height to which the nozzle 20 floats. Furthermore, by turning the screw 23, the distance between the nut and the end face of the shaft tube 10 can be adjusted, making the height to which the floating nozzle 20 drives the top cover 21 to float adjustable. This ensures that the nozzle 20 floats during rotation, reducing friction, increasing rotation speed, and preventing the nozzle 20 from detaching the top cover 21 from the shaft tube 10.

[0022] like Figures 2 to 5 As shown, in one embodiment, the top cover 21 is provided with a protrusion 210, which is engaged with the shaft tube 10.

[0023] It should be noted that a protrusion 210 is integrally formed on one side of the top cover 21 near the shaft tube 10. This protrusion 210 is annular and coaxially distributed with the top cover 21. For ease of description, the side of the protrusion 210 near the shaft tube 10 is defined as the inner annular surface and the outer annular surface, and the end face of the shaft tube 10 is defined as the inner end face and the outer end face. When the screw 23 drives the top cover 21 to approach the end face of the shaft tube 10, the inner annular surface abuts against the outer end face. In this way, compared with the entire end face of the top cover 21 abutting against the end face of the shaft tube 10, or one side of the protrusion 210 abutting against the end face of the shaft tube 10, the friction area of ​​the contact area can be reduced, the frictional resistance between the top cover 21 and the shaft tube 10 when the nozzle 20 rotates can be reduced, the stability of the rotation speed of the nozzle 20 can be ensured, and the problems of decreased rotation speed and larger atomized water droplets caused by excessive frictional resistance can be avoided.

[0024] like Figures 2 to 5 As shown, in one embodiment, the top cover 21 is provided with a first groove 211 and a second groove 212. The first groove 211 and the second groove 212 are coaxially formed. The diameter of the first groove 211 is larger than the diameter of the shaft tube 10, and the diameter of the second groove 212 is smaller than the diameter of the shaft tube 10. The depth of the first groove 211 is smaller than the depth of the second groove 212, so that a protrusion 210 is formed between the first groove 211 and the second groove 212.

[0025] It should be noted that a first groove 211 and a second groove 212 are provided on the side of the top cover 21 near the shaft tube 10, and the first groove 211 and the second groove 212 are interconnected; the diameter of the first groove 211 is larger than the diameter of the shaft tube 10, the diameter of the second groove 212 is smaller than the diameter of the shaft tube 10, and the depth of the first groove 211 is smaller than the depth of the second groove 212, so that the side of the top cover 21 near the shaft tube 10 together form a protrusion 210 with an annular stepped structure; in this way, the friction area of ​​the contact area between the top cover 21 and the shaft tube 10 is reduced.

[0026] like Figures 2 to 3 , Figure 5 As shown, in one embodiment, the top cover 21 is also provided with a through hole 213, the diameter of the through hole 213 is adapted to the outer diameter of the sleeve 22, and the sleeve 22 is inserted into the through hole 213.

[0027] It should be noted that a through hole 213 adapted to the outer diameter of the sleeve 22 is opened at the axis of the top cover 21. The two ends of the through hole 213 are respectively connected to the side of the top cover 21 away from the shaft tube 10 and the inner bottom wall of the second groove 212. The sleeve 22 is coaxially inserted into the through hole 213, and one end of the sleeve 22 extends into the second groove 212. When the screw 23 passes through the sleeve 22 and is screwed to the shaft tube 10, the sleeve 22 can increase the support in the axial direction of the through hole 213, thereby improving the stability of the top cover 21 relative to the shaft tube 10.

[0028] like Figures 2 to 3 , Figure 6 As shown, in one embodiment, a retaining ring 220 is provided on the sleeve 22, and the diameter of the retaining ring 220 is larger than the diameter of the perforation 213.

[0029] It should be noted that a retaining ring 220 is provided on the end face of the sleeve 22 away from the shaft tube 10, making the cross-section of the sleeve 22 tend to be T-shaped; the end of the screw 23 away from the nut is provided with a threaded part, and the diameter of the threaded part is smaller than the diameter of the sleeve 22. When the threaded part is screwed to the shaft tube 10, the screw 23 abuts against the end face of the shaft tube 10, thereby making the nut of the screw 23 and the end face of the shaft tube 10 jointly restrict the axial sliding of the sleeve 22. In this way, when the nozzle 20 drives the top cover 21 to float up, the sleeve 22 can limit the floating height of the top cover 21.

[0030] like Figures 2 to 3 As shown, in one embodiment, the diameter of the screw 23 is adapted to the inner diameter of the sleeve 22.

[0031] It should be noted that the sleeve 22 has a through hole 221 in the axial direction, and the two ends of the through hole 221 are respectively connected to the two ends of the sleeve 22 in the axial direction, so that the sleeve 22 has a hollow tubular structure. Furthermore, the outer diameter of the sleeve 22 is matched with the diameter of the through hole 213, that is, a slight clearance fit is maintained between the top cover 21 and the outer wall of the sleeve 22. The inner diameter of the sleeve 22 is matched with the diameter of the screw 23, which also maintains a slight clearance fit between the screw 23 and the inner wall of the sleeve 22. In this way, it is ensured that the sleeve 22 smoothly passes through the top cover 21 and the screw 23 smoothly passes through the sleeve 22, while avoiding radial shaking caused by excessive clearance between the sleeve 22 and the top cover 21 and the screw 23, thereby improving the stability of the rotation of the top cover 21.

[0032] like Figures 2 to 3 As shown, in one embodiment, the locking assembly further includes a buffer pad 24, which is sleeved on the screw 23 and located between the retaining ring 220 and the nut of the screw 23.

[0033] It should be noted that the buffer pad 24 is a ring-shaped rubber structure. Its inner diameter matches the outer diameter of the screw 23, while its outer diameter is larger than the diameter of the retaining ring 220. During assembly, the buffer pad 24 is coaxially fitted onto the screw 23, positioned precisely between the retaining ring 220 of the sleeve 22 and the nut of the screw 23. Furthermore, the thickness of the buffer pad 24 is less than the gap between the retaining ring 220 and the nut of the screw 23, resulting in a slight gap between the nut of the screw 23 and the buffer pad 24. Thus, during the long-term rotation of the nozzle 20, the buffer pad 24 can buffer the vibration and impact between the nut and the retaining ring 220, reducing frictional noise caused by their relative movement; and it also prevents the top cover 21 from being unable to rotate due to the screw 23 locking the retaining ring 220.

[0034] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A nozzle core locking structure, characterized in that, include: Shaft tube; and A locking assembly includes a nozzle, a top cover, a sleeve, and a screw. The nozzle is sleeved on the shaft tube, the top cover is coaxially disposed on the nozzle, the sleeve is coaxially inserted through the top cover, and the screw coaxially passes through the sleeve and is screwed to the axial position of the end of the shaft tube, so that the screw pushes the top cover and engages with the shaft tube.

2. The nozzle core locking structure according to claim 1, characterized in that, The top cover is provided with a protrusion, which is engaged with the shaft tube.

3. The nozzle core locking structure according to claim 2, characterized in that, The top cover has a first groove and a second groove, which are coaxially formed. The diameter of the first groove is larger than the diameter of the shaft tube, and the diameter of the second groove is smaller than the diameter of the shaft tube. The depth of the first groove is smaller than the depth of the second groove, so that the protrusion is formed between the first groove and the second groove.

4. The nozzle core locking structure according to claim 3, characterized in that, The top cover is also provided with a perforation, the diameter of which is adapted to the outer diameter of the sleeve, and the sleeve is inserted into the perforation.

5. The nozzle core locking structure according to claim 4, characterized in that, The sleeve is provided with a retaining ring, the diameter of which is larger than the diameter of the perforation.

6. The nozzle core locking structure according to claim 5, characterized in that, The diameter of the screw is adapted to the inner diameter of the sleeve.

7. The nozzle core locking structure according to claim 6, characterized in that, The locking assembly also includes a buffer pad, which is sleeved on the screw and located between the retaining ring and the nut of the screw.

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