High pressure pneumatic rotary jet

Abstract

The utility model discloses a kind of high-pressure pneumatic rotary spray head, including rotating head, high-pressure water outlet pipe, shell, rotating shaft, pneumatic motor, synchronous belt, synchronous pulley one, synchronous pulley two, fixed seat, shaft sleeve, water switch body and air cylinder, rotating head is connected with high-pressure water outlet pipe by pipe sleeve, high-pressure water outlet pipe is set in shell;Pneumatic motor is connected with synchronous pulley two, synchronous pulley two is driven connection with synchronous pulley one by synchronous belt, synchronous pulley one is installed on rotating shaft, rotating shaft cooperates with rotating head, water switch body cooperates with air cylinder and is used at least for controlling water circuit on-off.This utility model is driven by pneumatic motor with synchronous belt, improves the stability and efficiency of rotary power transmission, reduces mechanical wear, prolongs equipment life, multiple sealing structure design, enhances the sealing of high-pressure water circuit, effectively prevents leakage, safeguards operation safety, equipment integrated water switch body and air cylinder control, realize the quick and accurate regulation and control of water circuit on-off, adapt to different operation needs.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment technology, specifically to a high-pressure pneumatic rotary nozzle. Background Technology

[0002] High-pressure pneumatic rotary nozzles are widely used in cleaning, spraying and other fields. By combining high-pressure water flow with rotational motion, they can improve work efficiency and coverage. Such equipment needs to balance the sealing performance of the high-pressure water circuit with the stable transmission of the rotating mechanism to meet the needs of complex working conditions.

[0003] However, existing high-pressure rotary nozzles often suffer from problems such as insufficient water circuit sealing leading to leakage and low efficiency in rotational power transmission. Some products use mechanical transmission structures, which are prone to wear and tear, affecting their lifespan. Furthermore, the water circuit switch control is not precise enough, making it difficult to quickly respond to changes in operating conditions, thus limiting the applicability and reliability of the equipment. Therefore, there is an urgent need to design a high-pressure pneumatic rotary nozzle to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide a high-pressure pneumatic rotary nozzle to address the aforementioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A high-pressure pneumatic rotary nozzle includes a rotary head, a high-pressure water outlet pipe, a housing, a rotary shaft, a pneumatic motor, a synchronous belt, a first synchronous pulley, a second synchronous pulley, a fixed base, a bushing, a water switch body, and a cylinder. The rotary head is connected to the high-pressure water outlet pipe through the bushing, and the high-pressure water outlet pipe is disposed inside the housing. The pneumatic motor is connected to the second synchronous pulley, which is connected to the first synchronous pulley via a synchronous belt. The first synchronous pulley is mounted on a rotating shaft, which is coupled to a rotating head. The water switch body is coupled to a cylinder to control the opening and closing of the water circuit.

[0006] Preferably, a copper seal and an oil seal are provided between the rotating head and the sleeve.

[0007] Preferably, an internal hex screw is provided on one side of the housing, and a retaining spring is provided on the other side of the housing.

[0008] Preferably, the outer wall of the rotating shaft is provided with a key pin, the rotating shaft is connected to the first synchronous pulley through the key pin, and the first synchronous pulley is fixed by a screw and a washer.

[0009] Preferably, the pneumatic motor is mounted on the aluminum cover by screw two, and the aluminum cover is used at least for installation with other components, and the synchronous pulley two is mounted on the aluminum cover by bolt one.

[0010] Preferably, the fixing seat is installed by bolt two, and the fixing seat is provided with oil seal two, bearing one, bearing two and oil seal three.

[0011] Preferably, the bushing is provided with a sealing copper gasket, a high-pressure seal, and an O-ring. The bushing cooperates with the sealing seat, and the sealing seat is fixed by a lock nut.

[0012] Preferably, the water switch body is provided with a latch and a door screw. One side of the water switch body is provided with a connecting rod, an O-ring II, a valve gasket, and a latch and door screw with the same structure. The other side of the water switch body is provided with a sealing copper ring, a high-pressure seal II, an O-ring III, a copper seal II, a sealing needle, and a positioning screw.

[0013] In the above technical solution, the high-pressure pneumatic rotary nozzle provided by this utility model has the following beneficial effects: (1) By using a pneumatic motor in conjunction with a synchronous belt drive, the stability and efficiency of the rotational power transmission are improved, mechanical wear is reduced, and the equipment life is extended. The multi-seal structure design enhances the sealing of the high-pressure water circuit, effectively preventing leakage and ensuring operational safety.

[0014] (2) The equipment integrates water switch body and cylinder control to realize rapid and accurate control of water circuit opening and closing, adapting to different operation needs. Each component is designed in a modular way and connected in a precise manner, which facilitates installation and maintenance, improves the overall reliability and applicability of the equipment, and has strong practical value. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 This is a three-dimensional structural view of an embodiment of a high-pressure pneumatic rotary nozzle of the present invention.

[0017] Figure 2 This is an exploded view of the outer shell structure of an embodiment of a high-pressure pneumatic rotary nozzle according to this utility model.

[0018] Figure 3 This is an exploded view of the aluminum cover structure provided for an embodiment of a high-pressure pneumatic rotary nozzle of this utility model.

[0019] Figure 4 This is an exploded view of the bushing structure provided in an embodiment of a high-pressure pneumatic rotary nozzle of this utility model.

[0020] Figure 5An explosion occurred in the water switch body structure provided in an embodiment of the high-pressure pneumatic rotary nozzle of this utility model.

[0021] 1. Rotating head; 2. Copper seal 1; 3. Oil seal 1; 4. Pipe sleeve; 5. High-pressure water outlet pipe; 6. Socket head screw; 7. Housing; 8. Snap ring; 9. Rotating shaft; 10. Key pin; 11. Screw 1; 12. Washer; 13. Synchronous pulley 1; 14. Synchronous belt; 15. Synchronous pulley 2; 16. Screw 2; 17. Bolt 1; 18. Aluminum cover; 19. Pneumatic motor; 20. Bolt 2; 21. Mounting base; 22. Oil seal 2; 23. Bearing 1 24. Bearing II; 25. Oil Seal III; 26. Bushing; 27. Sealing Copper Gasket; 28. High-Pressure Seal I; 29. ​​O-Ring I; 30. Sealing Seat; 31. Lock Nut; 32. Locking Buckle; 33. Door Screw; 34. Connecting Rod; 35. O-Ring II; 36. Valve Gasket; 37. Water Switch Body; 38. Sealing Copper Ring; 39. High-Pressure Seal II; 40. O-Ring III; 41. Copper Seal II; 42. Sealing Needle; 43. Positioning Screw; 44. Cylinder. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0023] like Figure 1-5 As shown in the figure, a high-pressure pneumatic rotary nozzle provided by this utility model includes a rotary head 1, a high-pressure water outlet pipe 5, a housing 7, a rotary shaft 9, a pneumatic motor 19, a synchronous belt 14, a first synchronous pulley 13, a second synchronous pulley 15, a fixed base 21, a bushing 26, a water switch body 37, and a cylinder 44. The rotary head 1 is connected to the high-pressure water outlet pipe 5 through the bushing 4, and the high-pressure water outlet pipe 5 is disposed inside the housing 7. The pneumatic motor 19 is connected to the second synchronous pulley 15, and the second synchronous pulley 15 is connected to the first synchronous pulley 13 through the synchronous belt 14. The first synchronous pulley 13 is mounted on the rotary shaft 9, and the rotary shaft 9 cooperates with the rotary head 1. The water switch body 37 cooperates with the cylinder 44 to at least control the on / off of the water circuit. The piston rod of cylinder 44 is connected to the rear end of the valve core of water switch body 37. When compressed air is introduced into cylinder 44, the piston rod pushes the valve core to move axially: when moving forward, the valve pad 36 is disengaged from the sealing surface, the water circuit is open, and high-pressure water is delivered to the rotating head 1 through the high-pressure water outlet pipe 5 and sprayed out; when moving backward, the valve pad 36 presses against the sealing surface, the water circuit is cut off, and the on / off control of the high-pressure water circuit is realized.

[0024] In this embodiment, there are a rotating head 1, a high-pressure water outlet pipe 5, a housing 7, a rotating shaft 9, a pneumatic motor 19, a synchronous belt 14, a synchronous pulley 13, a synchronous pulley 25, a fixed base 21, a bushing 26, a water switch body 37, and a cylinder 44. The rotating head 1 is connected to the high-pressure water outlet pipe 5 through the pipe sleeve 4. The high-pressure water outlet pipe 5 is set inside the housing 7. The pneumatic motor 19 is connected to the second synchronous pulley 15. The second synchronous pulley 15 is connected to the first synchronous pulley 13 via the synchronous belt 14. The first synchronous pulley 13 is mounted on the rotating shaft 9. The rotating shaft 9 is engaged with the rotating head 1. The water switch body 37 is engaged with the cylinder 44 to control the opening and closing of the water circuit.

[0025] Specifically, a copper seal 2 and an oil seal 3 are provided between the rotating head 1 and the sleeve 4. The rotating head 1 is located at the front end of the device, and its rear end is connected to the high-pressure water outlet pipe 5 through the sleeve 4. The copper seal 2 is tightly attached to the rear end face of the rotating head 1 to achieve static sealing of the high-pressure water circuit and prevent water leakage from the connection gap. The oil seal 3 is sleeved on the outer wall of the sleeve 4 and embedded in the mounting groove of the rotating head 1 to maintain dynamic sealing performance when the rotating head 1 rotates. The high-pressure water outlet pipe 5 runs through the interior of the outer casing 7 along its central axis.

[0026] Specifically, a hexagonal screw 6 is provided on one side of the outer casing 7. The outer casing 7 is a hollow cylindrical structure. An end cap is fixed to the left port by the hexagonal screw 6 to seal the internal space. A retaining spring 8 is provided on the other side of the outer casing 7. A retaining spring 8 is also installed on the inner wall of the right port. The retaining spring 8 forms an axial limit with the shoulder of the rotating shaft 9 to prevent the rotating shaft 9 from axially moving during operation.

[0027] Specifically, a flat key pin 10 is provided on the outer wall of the rotating shaft 9. The rotating shaft 9 is connected to the synchronous wheel 13 through the flat key pin 10. The front end of the rotating shaft 9 and the rear center hole of the rotating head 1 are fixed in the circumferential direction through spline engagement. A keyway is provided in the middle of the outer wall of the rotating shaft 9. After the flat key pin 10 is embedded in the keyway, it engages with the inner hole keyway of the synchronous wheel 13, so that the synchronous wheel 13 and the rotating shaft 9 form a synchronous rotation relationship. Synchronous pulley 13 is fixed by screw 11 and washer 12. Synchronous pulley 13 is axially fixed by screw 11 passing through the through hole on its end face and screwing into the threaded hole of rotating shaft 9. Washer 12 is also placed between screw 11 and synchronous pulley 13 to increase the force-bearing area and prevent screw from loosening.

[0028] Specifically, the pneumatic motor 19 is mounted on the aluminum cover 18 by screw 16. The aluminum cover 18 is used at least to cooperate with other components for installation. The synchronous pulley 15 is mounted on the aluminum cover 18 by bolt 17. The pneumatic motor 19 serves as a power source, and its output shaft is connected to the synchronous pulley 15 by a flat key. The housing of the pneumatic motor 19 is fixed to one end face of the aluminum cover 18 by screw 16. The other end face of the aluminum cover 18 is connected to the bearing seat of the synchronous pulley 15 by bolt 17, so that the synchronous pulley 15 maintains a stable rotation posture. Synchronous pulley 2 15 is connected to synchronous pulley 13 via synchronous belt 14. When compressed air is introduced into the pneumatic motor 19 to drive the output shaft to rotate, the torque is transmitted to synchronous pulley 13 in sequence through synchronous pulley 2 15 and synchronous belt 14, which ultimately drives the rotating shaft 9 and the rotating head 1 to rotate synchronously, realizing the 360° rotation operation of the rotating head 1.

[0029] Specifically, the fixed seat 21 is installed by bolt 20 and is mounted on the frame of the device by bolt 20. The fixed seat 21 is provided with oil seal 22, bearing 1 23, bearing 24 and oil seal 3 25. Oil seal 22 and oil seal 3 25 are located at the two ends of the fixed base 21 to prevent external dust from entering and internal grease from leaking. Bearing 1 23 and bearing 24 provide radial support for the rotating shaft 9, so that the rotating shaft 9 maintains stable coaxiality when rotating at high speed.

[0030] Specifically, the bushing 26 is provided with a sealing copper gasket 27, a high-pressure seal 28, and an O-ring 29. The bushing 26 is fitted on the outer wall of the high-pressure water outlet pipe 5. The front end of the bushing is fitted with the sealing copper gasket 27, the high-pressure seal 28, and the O-ring 29 in sequence. The sealing copper gasket 27 is in contact with the front end face of the bushing 26. The high-pressure seal 28 is a polyurethane seal with a U-shaped cross section. Its lip faces the direction of the high-pressure water inlet and can achieve self-tightening sealing under water pressure. The bushing 26 mates with the sealing seat 30, which is fixed by a lock nut 31. An O-ring 29 is embedded in the annular groove of the bushing 26, forming a radial seal with the inner wall of the sealing seat 30. The front end of the sealing seat 30 is threaded to the bushing 26, and the rear end is threaded to the outer wall of the high-pressure water outlet pipe 5 by the lock nut 31. Tightening the lock nut 31 can axially compress the seal, ensuring the sealing reliability of the high-pressure water circuit.

[0031] Specifically, the water switch body 37 is provided with a latch 32 and a door screw 33. One side of the water switch body 37 is provided with a connecting rod 34, an O-ring 35, a valve gasket 36, and a latch 32 and a door screw 33 with the same structure. The other side of the water switch body 37 is provided with a sealing copper ring 38, a high-pressure seal 39, an O-ring 40, a copper seal 41, a sealing needle 42, and a positioning screw 43. The water switch body 37 has a three-way structure, with its horizontal channel connected to the rear end of the high-pressure water outlet pipe 5 and a valve core installed in its vertical channel. One end of a connecting rod 34 is fixed to the left outer wall of the water switch body 37 by a latch 32 and a door screw 33. The other end of the connecting rod 34 extends into the water switch body 37 and connects to the valve core. An O-ring 35 is fitted in the middle of the connecting rod 34 to block the passage between the valve core cavity and the outside. A valve gasket 36 is installed at the front end of the valve core. The valve gasket 36 is made of rubber and can achieve water circuit shut-off by cooperating with the sealing surface inside the water switch body 37. On the right side of the water switch body 37, a sealing copper ring 38, a high-pressure seal 39, an O-ring 40, and a copper seal 41 are sequentially assembled. These seals are arranged axially at the rear end of the valve core to withstand reverse water pressure and prevent leakage. The sealing needle 42 is inserted into the center hole of the valve core and its position is fixed by the positioning screw 43, which is used to precisely control the opening stroke of the valve core.

[0032] Working steps: 1. Start the pneumatic motor 19, which drives the rotating head 1 to start rotating through synchronous transmission, and establish the basic working speed; 2. Operate cylinder 44 to open water switch body 37, so that high-pressure water flows through high-pressure water outlet pipe 5 and sprays out from rotating head 1, entering normal operation state. 3. During operation, the rotation speed of the rotating head 1 can be changed by adjusting the input air pressure of the pneumatic motor 19 to adapt to different work intensity requirements. IV. When it is necessary to temporarily suspend the operation, operate the cylinder 44 to close the water switch body 37, cut off the water circuit and keep the rotating head 1 running freely, so as to facilitate a quick resumption of the operation. 5. After the operation is completed, first turn off the water switch body 37 to stop the water flow, then turn off the pneumatic motor 19 to stop its rotation, and finally close the air source valve to cut off the power supply.

[0033] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high-pressure pneumatic rotary nozzle, comprising a rotary head (1), a high-pressure water outlet pipe (5), a housing (7), a rotary shaft (9), a pneumatic motor (19), a synchronous belt (14), a first synchronous pulley (13), a second synchronous pulley (15), a fixed base (21), a bushing (26), a water switch body (37), and a cylinder (44), characterized in that, The rotating head (1) is connected to the high-pressure water outlet pipe (5) through the sleeve (4), and the high-pressure water outlet pipe (5) is set inside the outer shell (7); The pneumatic motor (19) is connected to the second synchronous pulley (15), which is connected to the first synchronous pulley (13) via a synchronous belt (14). The first synchronous pulley (13) is mounted on the rotating shaft (9), which is engaged with the rotating head (1). The water switch body (37) is engaged with the cylinder (44) to control the opening and closing of the water circuit.

2. A high-pressure pneumatic rotary nozzle according to claim 1, characterized in that, A copper seal (2) and an oil seal (3) are provided between the rotating head (1) and the sleeve (4).

3. A high-pressure pneumatic rotary nozzle according to claim 1, characterized in that, One side of the housing (7) is provided with an internal hex screw (6), and the other side of the housing (7) is provided with a retaining ring (8).

4. A high-pressure pneumatic rotary nozzle according to claim 1, characterized in that, The outer wall of the rotating shaft (9) is provided with a flat key pin (10), and the rotating shaft (9) is connected to the first synchronous wheel (13) through the flat key pin (10). The first synchronous wheel (13) is fixed by a screw (11) and a washer (12).

5. A high-pressure pneumatic rotary nozzle according to claim 1, characterized in that, The pneumatic motor (19) is mounted on the aluminum cover (18) by screw two (16). The aluminum cover (18) is used at least for installation with other components. The synchronous pulley two (15) is mounted on the aluminum cover (18) by bolt one (17).

6. A high-pressure pneumatic rotary nozzle according to claim 1, characterized in that, The fixed seat (21) is installed by bolt two (20), and the fixed seat (21) is provided with oil seal two (22), bearing one (23), bearing two (24) and oil seal three (25).

7. A high-pressure pneumatic rotary nozzle according to claim 1, characterized in that, The bushing (26) is provided with a sealing copper gasket (27), a high-pressure seal (28), and an O-ring (29). The bushing (26) cooperates with the sealing seat (30), and the sealing seat (30) is fixed by a lock nut (31).

8. A high-pressure pneumatic rotary nozzle according to claim 1, characterized in that, The water switch body (37) is provided with a latch (32) and a door screw (33). One side of the water switch body (37) is provided with a connecting rod (34), an O-ring II (35), a valve gasket (36), and a latch (32) and a door screw (33) with the same structure. The other side of the water switch body (37) is provided with a sealing copper ring (38), a high-pressure seal II (39), an O-ring III (40), a copper seal II (41), a sealing needle (42), and a positioning screw (43).

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