A high pressure rotary water jet device

Abstract

The utility model relates to a high pressure rotary water spraying device belongs to car washing equipment technical field, this high pressure rotary water spraying device includes the spray head main part, the center tube, the rotary head, the water spraying pipe and the nozzle assembly, one end of spray head main part is equipped with the end cover, the end cover is equipped with the center hole, the one end rotatable plug -in of center tube is in the center hole, the other end of center tube stretches out the other end of spray head main part and is detachably connected with the rotary head, at least two water spraying pipes are evenly arranged along the circumference of rotary head, and are communicated with the inner chamber of rotary head, and the water outlet end of each water spraying pipe is rotatably connected with the nozzle assembly, adopt this structure, through the spray angle of nozzle assembly's adjustment, utilize the reaction force of water spraying and realize the automatic rotation of rotary head, thereby expand the water spraying area, improve the cleaning efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of car wash equipment, and specifically relates to a high-pressure rotary water spray device. Background Technology

[0002] Automatic car wash machines, with their significant advantages of high cleaning efficiency, low labor costs, and high degree of standardization, have been widely used in various scenarios such as gas stations, parking lots, and professional car wash shops. Currently, automatic car wash machines mainly rely on high-pressure water jets from spray devices to clean car bodies. However, existing spray devices mostly use a direct-spray nozzle design, which has drawbacks such as limited spray coverage and uneven water distribution. This not only affects the cleanliness of the car wash but also reduces the overall cleaning efficiency. At the same time, the spray device itself has a compact structure and limited space. Attempts to expand the spray range by adding a power source to drive its rotation are often limited by installation space and modification costs, making it difficult to implement such a solution.

[0003] Therefore, there is an urgent need for a high-pressure rotary water spray device that can achieve nozzle angle adjustment and automatic rotation, has a large spray area, and high cleaning efficiency. Utility Model Content

[0004] This invention provides a high-pressure rotary water spray device to solve the technical problems of small spray area and low cleaning efficiency of existing car wash machine spray devices.

[0005] This utility model is achieved through the following technical solution: a high-pressure rotary water spraying device, comprising a nozzle body, a central tube, a rotating head, a water spray pipe, and a nozzle assembly. One end of the nozzle body is provided with an end cap, and the end cap is provided with a central hole. One end of the central tube is rotatably inserted into the central hole, and the other end of the central tube extends out of the other end of the nozzle body and is detachably connected to the rotating head. At least two water spray pipes are evenly arranged along the circumference of the rotating head and communicate with the inner cavity of the rotating head. The outlet end of each water spray pipe is rotatably connected to the nozzle assembly.

[0006] To better realize this utility model, further optimizations are made to the above structure. The end cap opposite to the nozzle body is provided with an external thread, which is used to fix and connect the car wash machine. The hole wall of the central hole is provided with an annular groove, and a polytetrafluoroethylene sealing ring is provided in the annular groove. The polytetrafluoroethylene sealing ring is sealed and connected between the central tube and the end cap.

[0007] To better realize this utility model, the above structure is further optimized by including a bearing assembly. The bearing assembly is disposed inside the nozzle body and sleeved on the central tube. The outer wall of the central tube is provided with an annular boss. The two sides of the annular boss abut against the end face of the end cap and the end face of the bearing assembly, respectively.

[0008] To better realize this utility model, further optimizations are made to the above structure. An oil injection nozzle is provided on one side of the nozzle body, and the oil injection nozzle is used to inject lubricating oil into the bearing assembly.

[0009] To better realize this utility model, further optimizations are made to the above structure, and the bearing assembly includes a deep groove ball bearing and a thrust angular bearing.

[0010] To better realize this utility model, the above structure is further optimized by including a nut connector, which is detachably screwed between the central tube and the rotating head.

[0011] To better realize this utility model, the above structure is further optimized. The water spray pipe is inclined to one side of the nozzle body, and the angle between the water spray pipe and the rotating head in the axial direction is 80°.

[0012] To better realize this utility model, further optimizations are made to the above structure. The nozzle assembly includes a bend joint and a nozzle head. One end of the bend joint is rotatably screwed onto the spray end of the water spray pipe, and the nozzle head is disposed on the other end of the bend joint.

[0013] Compared with the prior art, this utility model has the following advantages: The high-pressure rotary water spray device provided by this utility model includes a nozzle body, a central tube, a rotating head, water spray pipes, and a nozzle assembly. One end of the nozzle body is provided with an end cap, and the end cap has a central hole. One end of the central tube is rotatably inserted into the central hole, and the other end of the central tube extends out of the other end of the nozzle body and is detachably connected to the rotating head. At least two water spray pipes are evenly arranged along the circumference of the rotating head and communicate with the inner cavity of the rotating head. The outlet end of each water spray pipe is rotatably connected to a nozzle assembly. With this structure, by adjusting the spray angle of the nozzle assembly, the automatic rotation of the rotating head is achieved by utilizing the reaction force of the water spray, thereby expanding the spray area and improving the cleaning efficiency, making this utility model more practical. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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.

[0015] Figure 1 This is a perspective view of the high-pressure rotary water spray device in this utility model; Figure 2This is a front view of the high-pressure rotary water spray device in this utility model; Figure 3 yes Figure 2 The view of AA in the middle.

[0016] In the picture: 1- Nozzle body; 2- Center tube; 3- Rotating head; 4- Water spray pipe; 5- Nozzle assembly; 6- End cap; 7- Center hole; 8- External thread; 9- Polytetrafluoroethylene sealing ring; 10- Annular boss; 11- Oil nozzle; 12- Bearing assembly; 13- Nut connector; 14- Elbow connector; 15- Nozzle head. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] Example 1: In this embodiment, a high-pressure rotary water spray device, such as Figure 1As shown, the device includes a nozzle body 1, a central tube 2, a rotating head 3, a water spray pipe 4, and a nozzle assembly 5. Specifically, one end of the nozzle body 1 is provided with an end cap 6, and the end cap 6 has a central hole 7. The nozzle body 1 is detachably fixed to the car wash machine through the end cap 6. The central hole 7 is used to communicate with the water circuit of the car wash machine. One end of the central tube 2 is rotatably inserted into the central hole 7, and the other end of the central tube 2 extends out of the other end of the nozzle body 1 and is detachably connected to the rotating head 3, so that the central tube 2 and the rotating head 3 can be positioned relative to each other. The main body 1 of the spray head rotates, and the water from the car wash machine can be guided to the rotating head 3 through the central hole 7 and the central tube 2. At least two spray pipes 4 are evenly arranged around the circumference of the rotating head 3 and communicate with the inner cavity of the rotating head 3. The outlet end of each spray pipe 4 is rotatably connected to the nozzle assembly 5. The water from the rotating head 3 flows into the spray pipe 4 and is then sprayed out through the nozzle assembly 5. The rotatably connected nozzle assembly 5 can rotate relative to the spray pipe 4, thereby adjusting the spray direction of the nozzle assembly 5.

[0021] By adopting this structure, the nozzle assembly 5 is rotated to adjust its spray angle, ensuring that all the nozzle assemblies 5 spray in the same direction. The reaction force of the water spray pushes the rotating head 3 to achieve automatic rotation, so that all the nozzle assemblies 5 rotate circumferentially, thereby expanding the water spray area of ​​the nozzle assembly 5, improving cleaning efficiency, and making the utility model more practical.

[0022] In this embodiment, the end cap 6 is provided with an external thread 8 at one end away from the nozzle body 1. The external thread 8 is used to fix the car wash machine, while the other end of the end cap 6 is inserted into the central tube 2 by a threaded connection. The outer wall of the end cap 6 is hexagonal, which facilitates tightening or loosening its connection with the central tube 2 or the car wash machine. The wall of the central hole 7 is provided with an annular groove, and a polytetrafluoroethylene (PTFE) sealing ring 9 is provided in the annular groove. The PTFE sealing ring 9 is sealed between the central tube 2 and the end cap 6. The PTFE sealing ring 9 plays a role in sealing and maintaining pressure, preventing water from overflowing from the gap between the central tube 2 and the central hole 7. Since the PTFE sealing ring 9 has a low coefficient of friction and excellent self-lubricating properties, it will not hinder the rotation of the central tube 2 and will not cause damage to its own structure due to frictional heat.

[0023] In this embodiment, a bearing assembly 12 is also included. The bearing assembly 12 is disposed inside the nozzle body 1 and sleeved on the central tube 2. The bearing assembly 12 ensures that the central tube 2 can rotate without jamming under the action of the reaction force of hand-sprayed water. At the same time, the outer wall of the central tube 2 is provided with an annular boss 10. The annular boss 10 is located between the end face of the end cap 6 and the end face of the bearing assembly 12. The annular boss 10 allows the central tube 2 to move only a small distance in the axial direction, preventing the central tube 2 from detaching from the nozzle body 1, while not hindering the rotation of the central tube 2 or locking the central tube 2. The end of the nozzle body 1 away from the end cap 6 has a retaining ring. The retaining ring cooperates with the annular boss 10 to limit the installation of the bearing assembly 12. That is, the bearing assembly 12 is located between the retaining ring and the annular boss 10. The central tube 2 and the inner ring of the bearing assembly 12 are fixed by interference fit, and automatic rotation is achieved under the action of the reaction force of water spray.

[0024] Furthermore, the bearing assembly 12 includes a deep groove ball bearing and a thrust angular bearing. The deep groove ball bearing bears the main radial load and provides basic radial positioning, limiting the radial movement of the central tube 2. The thrust angular bearing bears a large bidirectional axial load, solving the problem of insufficient axial load capacity of the deep groove ball bearing, limiting the axial movement of the central tube 2, and preventing the central tube 2 from displacing under axial force. As an optimization, an oil injection nozzle 11 is provided on one side of the nozzle body 1. The oil injection nozzle 11 is used to inject lubricating oil into the bearing assembly 12 to prevent jamming.

[0025] In this embodiment, a nut connector 13 is also included. The nut connector 13 is detachably screwed between the central tube 2 and the rotating head 3. The nut connector 13 is used for quick connection and disconnection of the central tube 2 and the rotating head 3. Specifically, both ends of the nut connector 13 are provided with countersunk holes, and the inner wall of the countersunk holes is provided with internal threads. The central tube 2 and the rotating head 3 are respectively screwed into the countersunk holes. All threaded connection parts can be provided with sealing rings to enhance the sealing performance. The outer wall of the nut connector 13 is hexagonal, which facilitates screwing.

[0026] In this embodiment, the water spray pipe 4 is inclined toward one side of the nozzle body 1, and the angle between the water spray pipe 4 and the rotating head 3 in the axial direction is 80°. This arrangement makes the water spray pipe 4 and the nozzle assembly 5 flare outward, forming a cone-shaped outward water mist, which further increases the spray area. At the same time, it also makes it less likely for the nozzle assembly 5 to touch the vehicle body during use.

[0027] Furthermore, the nozzle assembly 5 includes a bend joint 14 and a nozzle head 15. One end of the bend joint 14 is rotatably screwed onto the spray end of the water spray pipe 4, and the nozzle head 15 is connected to the other end of the bend joint 14. By rotating the bend joint 14, the spray direction of the nozzle head 15 is adjusted, ensuring that the spray direction of all the nozzle heads 15 is consistent, thereby forming a stable and reliable circumferential thrust, which drives the rotating head 3 and the central tube 2 to rotate, forming a large-scale, high-efficiency water mist spray on the vehicle body, greatly improving cleaning efficiency.

[0028] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A high-pressure rotary water spray device, characterized in that: The device includes a nozzle body (1), a central tube (2), a rotating head (3), a water spray pipe (4), and a nozzle assembly (5). One end of the nozzle body (1) is provided with an end cap (6), and the end cap (6) is provided with a central hole (7). One end of the central tube (2) is rotatably inserted into the central hole (7), and the other end of the central tube (2) extends out of the other end of the nozzle body (1) and is detachably connected to the rotating head (3). At least two water spray pipes (4) are evenly arranged along the circumference of the rotating head (3) and communicate with the inner cavity of the rotating head (3). The outlet end of each water spray pipe (4) is rotatably connected to the nozzle assembly (5).

2. The high-pressure rotary water spray device according to claim 1, characterized in that: The end cap (6) is provided with an external thread (8) at the end away from the nozzle body (1). The external thread (8) is used to fix the car wash machine. The hole wall of the central hole (7) is provided with an annular groove. A polytetrafluoroethylene sealing ring (9) is provided in the annular groove. The polytetrafluoroethylene sealing ring (9) is sealed between the central tube (2) and the end cap (6).

3. The high-pressure rotary water spray device according to claim 2, characterized in that: It also includes a bearing assembly (12), which is disposed inside the nozzle body (1) and sleeved on the central tube (2). The outer wall of the central tube (2) is provided with an annular boss (10), which is located between the end face of the end cap (6) and the end face of the bearing assembly (12).

4. The high-pressure rotary water spray device according to claim 3, characterized in that: The nozzle body (1) is provided with an oil injection nozzle (11) on one side, which is used to inject lubricating oil into the bearing assembly (12).

5. A high-pressure rotary water spray device according to claim 3, characterized in that: The bearing assembly (12) includes a deep groove ball bearing and a thrust angle bearing.

6. The high-pressure rotary water spray device according to claim 1, characterized in that: It also includes a nut connector (13), which is detachably screwed between the central tube (2) and the rotating head (3).

7. A high-pressure rotary water spray device according to claim 1, characterized in that: The water spray pipe (4) is inclined toward one side of the nozzle body (1), and the angle between the water spray pipe (4) and the rotating head (3) in the axial direction is 80°.

8. A high-pressure rotary water spray device according to claim 1, characterized in that: The nozzle assembly (5) includes a bend (14) and a nozzle head (15). One end of the bend (14) is rotatably screwed onto the spray end of the water spray pipe (4), and the nozzle head (15) is disposed on the other end of the bend (14).

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