Gear machine core set for grease injection irrigation

Abstract

A gear machine core set for grease injection irrigation comprises a shell formed by combining and sleeving a main shell and a shell cover, a water inlet and a water outlet are formed in the front end and the rear end of the shell, an oil injection cavity is formed in the shell and used for installing a transmission part, a gear shaft at the inner end of a water inlet connecting pipe is connected with the transmission part, a cavity is formed in the end, at the water outlet, of the shell, and an impeller is arranged in the cavity. The impeller is connected with a transmission part through a gear shaft, a water inlet mechanism is arranged in the shell and comprises a water inlet shifting piece, a base is arranged in the middle of the main shell, two water inlet columns are formed in the base respectively, a U-shaped supporting seat is arranged between the water inlet columns, and an installation hole is formed in the shell cover and used for a control rod to be inserted in. The device is characterized in that the top of the water inlet shifting piece is provided with a limiting groove for the rotating head to be placed in and rotate, the bottom of the control rod is provided with a spring hole, a spring is arranged in the spring hole, and the other end of the spring is connected with the upper portion of the rotating head; the reciprocating rotation deformation of the spring is smaller, and the spring is not easy to damage, so that the service life of the whole movement group is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of sprinklers, and more particularly to a gear core assembly for grease injection irrigation. Background Technology

[0002] A sprinkler is a tool used for irrigating plants in farmland or gardens. With the improvement of living environments and the increase in the greening rate of urban parks, sprinklers have become widely used. Irrigation with sprinklers not only saves labor but also greatly improves irrigation efficiency. Existing sprinklers typically use long springs as the means of adjusting the water inlet mechanism. However, long springs are prone to damage due to metal fatigue and overuse during long-term operation. Therefore, the market needs a reliable and long-lasting water inlet mechanism to help users reduce the frequency of maintenance and replacement and extend its service life.

[0003] An investigation revealed that patent CN201921337096.5 discloses a sprinkler transmission structure for achieving oil-water separation. The structure includes a main housing and a transmission component. The main housing has inlets and outlets at its front and rear ends. The transmission component is housed within an oil injection chamber formed by the sealed engagement of a gear cover and a gear housing. A water inlet connector is fixedly installed at the inlet, with a gear shaft formed at its inner end and connected to the transmission component. An impeller is located at the end of the main housing near the outlet, connected to the transmission component within the oil injection chamber via the gear shaft. The main housing also has a water inlet mechanism connected to the water inlet connector. During water intake, the water flow impinges on the fan blades, driving the gear shaft to rotate, which in turn drives the transmission component to rotate. The gear shaft rotates synchronously, thus rotating the main housing. However, a drawback is that the steering function between the control lever and the water inlet paddle relies on a flexible torsion spring. This torsion spring is prone to breakage after repeated torsion, leading to product failure and requiring further design improvements. Summary of the Invention

[0004] This utility model addresses the problems of existing technology by proposing a gear core assembly for grease injection irrigation. It optimizes the water inlet mechanism, making the angle adjustment of the steering mechanism in the water inlet mechanism more flexible, protecting the spring and preventing spring damage, thereby extending the service life of the entire gear core assembly.

[0005] The technical solution of this utility model is: a gear core assembly for grease injection irrigation, comprising a housing and a transmission component disposed within the housing. The housing is formed by a main housing and a cover being fitted together in a sealed manner. The housing has an inlet and an outlet, respectively located at the front and rear ends of the housing. The housing contains an oil injection cavity formed by a gear cover and a gear cap in a sealed manner. The transmission component is disposed within the oil injection cavity. A water inlet pipe is fixedly provided at the water inlet of the housing. A gear shaft is formed at the inner end of the water inlet pipe and is connected to the transmission component. A chamber is located near the outlet of the housing, containing an impeller. The impeller is connected to the transmission component within the oil injection cavity via the gear shaft. A water inlet mechanism is provided within the housing to connect the water inlet pipe and the chamber. The device includes a water inlet deflector, a base in the middle of the main housing, two hollow water inlet columns axially formed on the side of the base away from the gear cover, a U-shaped support seat between the two water inlet columns for the lower end of the water inlet deflector to rest and swing left and right, a mounting hole on the cover corresponding to the position of the water inlet deflector, a control rod inserted into the mounting hole, and a water outlet hole on the inner end of the water inlet column corresponding to the other side of the water inlet deflector. When water is introduced, the water inlet deflector controls the water to enter from one of the water inlet columns. The device is characterized in that: the top of the water inlet deflector is provided with a limiting groove, the bottom of the rotating head is arc-shaped and rotatably set in the limiting groove, the bottom of the control rod is provided with a spring hole, a spring is in the spring hole, and the other end of the spring is connected to the upper part of the rotating head.

[0006] Furthermore, the bottom surface of the U-shaped support is provided with a blade, which abuts against the bottom surface of the water inlet deflector to improve the flexibility of the water inlet deflector's left and right swing.

[0007] Furthermore, the water inlet deflector has support columns with rounded bottom surfaces distributed on both sides of the middle part, which cooperate with the U-shaped grooves on both sides of the U-shaped support base to guide and support the left and right swing, making the left and right swing of the water inlet deflector more stable and reliable.

[0008] Furthermore, the rotating head has a main body diameter that is a cylinder with a smaller top diameter and a larger bottom diameter.

[0009] Furthermore, the shell is a cylindrical structure formed by fitting a cylindrical main shell and a shell cover together. The front end of the main shell is open, the shell cover is a sealing cap located at the front end of the main shell, the water outlet is located at the rear end of the main shell, and the water inlet is located on the shell cover.

[0010] Furthermore, the gear cover has an elliptical cross-section, and the bottom of the gear cover extends outward to form a base that fits with the inner wall of the main housing. A step is formed near the bottom of the main housing for the base to rest on. A through hole is provided in the middle of the base for the gear shaft to pass through. The impeller is located inside the housing, on the outside of the base, and connected to the gear shaft. A gasket, bushing, and oil seal are provided at the through hole of the base for sealing.

[0011] Preferably, the transmission component includes six transmission gears and two shafts. All six transmission gears are double gears. The first gear, second gear, and third gear are sequentially mounted on the first shaft, and the fourth gear, fifth gear, and sixth gear are sequentially mounted on the second shaft. One end of the first gear meshes with the gear shaft, the other end of the first gear meshes with the fourth gear, the other end of the fourth gear meshes with the second gear, the other end of the second gear meshes with the fifth gear, the other end of the fifth gear meshes with the third gear, the other end of the third gear meshes with the sixth gear, and the other end of the sixth gear extends out of the gear cover and meshes with the gear shaft.

[0012] Furthermore, the inner walls of the gear cover and gear cover are respectively formed with shaft holes for mounting the first shaft and the second shaft. The upper end of the sixth gear is formed with a small gear that extends out of the gear cover and meshes with the gear shaft. The gear cover is provided with a V-ring for increasing the seal at the opening corresponding to the small gear. An O-ring is lined between the sixth gear and the second shaft.

[0013] Furthermore, the upper end of the water inlet column is inclined downward and outward, and an arc-shaped water guide plate connected to the water inlet column is formed on the outer side of the base, corresponding to the outer side of the impeller.

[0014] Furthermore, the base is provided with two water inlets on the left and right sides, and pressure relief pins are installed on the water inlets respectively. A return spring is fitted on the pressure relief pin to keep the water inlet closed. When the water pressure is low, the pressure relief pin will not open. When the water pressure reaches a certain value, the pressure relief pin will be opened.

[0015] Compared with the prior art, the advantages of this utility model are as follows: the bottom of the control lever is provided with a spring slot, and a spring is provided in the spring slot. The water inlet deflector is connected to the control lever through the rotating head and the spring. The rotating head can rotate in the limiting groove of the water inlet deflector, so that the water inlet deflector completes the reciprocating rotation function in the U-shaped support through the cooperation between the rotating head and the spring. In addition, the spring is shorter and the spring reciprocating rotation deformation is smaller, making it less prone to damage, thereby extending the service life of the entire mechanism assembly. The structure is more reasonable and easier to assemble. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 This is a side view of the structure of this utility model;

[0018] Figure 3 This is a cross-sectional view of the present invention;

[0019] Figure 4 This is a schematic diagram of the exploded structure of this utility model;

[0020] Figure 5 This is a partial structural schematic diagram of the present invention;

[0021] Figure 6 A schematic diagram of the water inlet mechanism and transmission components;

[0022] Figure 7 A three-dimensional structural diagram of the water inlet deflector in the water inlet mechanism;

[0023] Figure 8 A three-dimensional schematic diagram of the main structure after removing the shell, base, gear cover, and gear cap;

[0024] In the diagram: 1. Housing; 2. Transmission component; 3. Inlet; 4. Outlet; 5. Gear cover; 6. Gear cap; 7. Inlet pipe; 8. Inlet deflector; 9. Gear shaft; 10. Impeller; 11. Gear shaft; 12. Base; 13. Inlet column; 14. U-shaped support; 15. Main housing; 16. Housing cover; 17. Mounting hole; 18. Control lever; 19. Blade; 20. Limiting groove; 21. Rotating head; 22. Spring hole; 23. Spring; 24. Pinion; 25. Inlet hole; 26. Pressure discharge. 27. Nail, 28. Return spring, 29. First shaft, 20. Second shaft, 31. First gear, 32. Second gear, 33. Third gear, 34. Fourth gear, 35. Fifth gear, 36. Sixth gear, 37. Guide plate, 38. Support column, 39. U-shaped groove, 40. Step, 41. Through hole, 42. Chamber, 43. Positioning column, 44. Oil filling chamber, 45. Inlet, 46. Water outlet, 47. O-ring, 48. Gasket, 49. Bushing, A. Water inlet mechanism. Detailed Implementation

[0025] The embodiments of this utility model patent will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model patent, but should not be construed as limiting its scope. In the description of this utility model patent, unless otherwise stated, "multiple" 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 patent 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 on this utility model patent. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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 patent based on the specific circumstances.

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0028] according to Figures 1 to 8A gear mechanism for grease injection includes a housing 1 and a transmission component 2 disposed within the housing 1. The housing 1 has an inlet 3 and an outlet 4, typically located at the front and rear ends of the housing 1 respectively. The housing 1 is formed by a cylindrical main housing 15 and a cover 16 that are fitted together in a sealed manner to facilitate relative rotation. The housing 1 also has an oil injection cavity 43 formed by a gear cover 5 and a gear cap 6 that are sealed together. The transmission component 2 is disposed within the oil injection cavity 43. A fixed device is provided at the inlet 3 of the housing 1. The water inlet pipe 7 has a gear shaft 9 formed at its inner end, which is connected to the transmission component 2. The water inlet pipe 7 has an inlet 44 at its inner end or side to facilitate water intake. The housing 1 has a chamber 41 at the end near the outlet 4, which contains an impeller 10. A gear shaft 11 is fixed in the middle of the impeller 10. The impeller 10 is connected to the transmission component 2 in the oil injection chamber through the gear shaft 11 and rotates synchronously with the gear shaft 9, thereby realizing the relative rotation between the main housing 15 and the cover 16, which in turn drives the water spraying mechanism of the sprinkler to rotate. The housing 1 contains a water inlet mechanism A that connects the water inlet pipe 7 and the chamber 41. The water inlet mechanism A includes a water inlet deflector 8, which has a T-shaped longitudinal section. A base 12 is located in the middle of the housing 1. Two hollow water inlet columns 13 are axially formed on the side of the base 12 away from the gear cover 5. A U-shaped support 14 is provided between the two water inlet columns 13, allowing the lower end of the water inlet deflector 8 to rest and swing left and right. The housing 1 is divided into a main housing 15 and a cover 16 that are rotatably connected. A mounting hole 17 is provided on the cover 16 corresponding to the position of the water inlet deflector 8. A control rod 18 is inserted into the mounting hole 17. A water outlet 45 is provided at the inner end of the water inlet column 13 corresponding to the other side of the water inlet deflector 8. The periphery of the water outlet 45 has guide plates 36 that guide the water flow in different directions. During water intake... The water inlet deflector 8 controls the water to enter from the water inlet column 13 on one side, thereby controlling the impeller to rotate in different directions. The improvement is that the top of the water inlet deflector 8 is provided with a limiting groove 20, and there is also a rotating head 21. The bottom of the rotating head 21 is an arc shape similar to a bullet head and is rotatably set in the limiting groove 20. The bottom diameter of the control rod 18 is appropriately increased and is provided with a spring hole 22. A spring 23 is in the spring hole 22. The other end of the spring 23 is connected to the upper part of the rotating head 21. The main body of the rotating head 21 is a cylinder with a shorter diameter at the top and a longer diameter at the bottom. A blade 19 is provided on the bottom surface of the U-shaped support 14, which abuts against the bottom surface of the water inlet deflector 8. In this way, because a steering mechanism is arranged in the water inlet mechanism A, the spring is protected and the spring is not easy to break, thereby extending the service life of the entire movement assembly.

[0029] The specific structure is as follows: the housing 1 is a cylindrical structure formed by fitting together a cylindrical main housing 15 and a cover 16, facilitating relative rotation between them. The front end of the main housing 15 is open, and the cover 16 is a sealing cap located at the front end of the main housing 15. The water outlet 4 is located at the rear end of the main housing 15, and the water inlet 3 is located at the front end of the cover 16. The water outlet 4 of the housing 1 has a water outlet interface formed therein, which connects to the water spraying mechanism of the sprinkler. To further improve the sensitivity of the steering mechanism and maintain good working stability, the water inlet deflector 8 has support columns 37 with rounded bottom surfaces distributed on both sides of the middle part, which cooperate with the U-shaped grooves 38 on both sides of the U-shaped support seat 14, allowing the water inlet deflector 8 to swing left and right through the support columns 37 and the U-shaped grooves 38 for guidance and support.

[0030] The gear cover 5 has an elliptical cross-section. The bottom of the gear cover 5 extends outward to form a base 12 that seals against the inner wall of the main housing 15. The base 12 and the main housing 15 are preferably circular. A step 39 is formed near the bottom of the main housing 15 for the base 12 to rest on. A through hole 40 is provided in the middle of the base 12 for the gear shaft 11 to pass through, which facilitates the transmission component 2 and the impeller 10 to drive each other. The impeller 10 is located inside the housing 15, outside the base 12, and connected to the gear shaft 11. A gasket 47, a bushing 48, and an oil seal 49 are provided at the through hole 40 of the base 12 for sealing, so that the base 12 and the main housing 15 are sealed to form a chamber 41 for the impeller 10 to rotate. The base 12 is also provided with two water inlets 25 on the left and right. Each water inlet 25 is equipped with a pressure relief pin 26. A return spring 27 is fitted on the pressure relief pin 26 to keep the water inlet 25 closed. When the water pressure is low, the pressure relief pin 26 will not open. When the water pressure reaches a certain value, the pressure relief pin 26 will be opened, so that the chamber 41 for the impeller 10 to rotate is connected to the inside and outside of the water inlet 13 through the water inlet 25, so that water can be discharged quickly to relieve pressure and prevent the gear core assembly from being damaged by pressure.

[0031] The transmission component 2 includes six transmission gears and two shafts. The first gear 30, the second gear 31, and the third gear 32 are respectively mounted on the first shaft 28, and the fourth gear 33, the fifth gear 34, and the sixth gear 35 are respectively mounted on the second shaft 29. All six transmission gears are double gears, so that one end of the first gear 30 meshes with the gear on the gear shaft 11, the other end of the first gear 30 meshes with the fourth gear 33, the other end of the fourth gear 33 meshes with the second gear 31, the other end of the second gear 31 meshes with the fifth gear 34, the other end of the fifth gear 34 meshes with the third gear 32, the other end of the third gear 32 meshes with the sixth gear 35, and the other end of the sixth gear 35 extends out of the gear cover 6 and meshes with the gear on the gear shaft 9, thereby realizing the transmission of power through gear meshing. The inner walls of the gear cover 5 and the gear cover 6 are respectively formed with shaft holes for mounting the first shaft 28 and the second shaft 29. The upper end of the sixth gear 35 is formed with a small gear 24 that extends out of the gear cover 6 and meshes with the gear on the gear shaft 9. A V-ring for increasing the seal is provided on the gear cover 6 at the opening corresponding to the protrusion of the small gear 24. An O-ring 46 is lined between the sixth gear 35 and the second shaft 29.

[0032] The upper end of the water inlet column 13 is inclined downward and outward. An arc-shaped water guide plate 36 connected to the water inlet column 13 is formed on the outer side of the base 12, corresponding to the outer side of the impeller 10. A positioning post 42 is protruding from the end of the gear shaft 9 at the water inlet pipe 7, and a corresponding positioning hole 43 is recessed on the gear cover 6. The water inlet pipe 7 is inserted at the water inlet 3 and is driven by the engagement of the gear shaft 9 with the small gear 24 on the sixth gear 35. It is fixed to the main housing 15 by the engagement of the positioning post and the positioning hole. A sealing ring is lined between the water inlet 3 and the water inlet pipe 7.

[0033] During operation, water flows in through the inlet pipe 7. The inlet deflector 8 controls which side of the inlet column 13 the water flows into the chamber 41, and drives the impeller 10 to rotate, thus achieving power and steering. When the water pressure is high and reaches a certain value, the pressure discharge pin 26 is pushed open, and water enters from the inlet column 13 and the inlet hole 25 at the same time, so that water can be discharged quickly to release pressure and prevent the gear core assembly from being damaged by pressure.

[0034] Because the gear core assembly for grease injection irrigation in this application has a new steering mechanism arranged in the water inlet mechanism A, the rotating head is used to assist in flexible steering. At the same time, the support column 37 and the U-shaped groove 38 are used to cooperate for support and left and right swing, which can greatly improve the protection of the spring and prevent it from being twisted off, thereby extending the service life of the entire gear core assembly.

Claims

1. A gear mechanism for grease injection, comprising a housing and a transmission component disposed within the housing. The housing is formed by a main housing and a cover being fitted together in a sealed manner. The housing has an inlet and an outlet, which are respectively located at the front and rear ends of the housing. The housing contains an grease injection chamber formed by a gear cover and a gear cap in a sealed manner. The transmission component is disposed within the grease injection chamber. A water inlet pipe is fixedly provided at the water inlet of the housing, and a gear shaft is formed at the inner end of the water inlet pipe and is connected to the transmission component. A chamber is located near the outlet of the housing, containing an impeller. The impeller is connected to the transmission component within the grease injection chamber via the gear shaft. The moving parts are connected by a transmission mechanism. The housing contains a water inlet mechanism that connects the water inlet pipe and the chamber. The water inlet mechanism includes a water inlet deflector. A base is located in the middle of the main housing. Two hollow water inlet columns are axially formed on the side of the base away from the gear cover. A U-shaped support is provided between the two water inlet columns for the lower end of the water inlet deflector to rest on and swing left and right. A mounting hole is opened on the cover corresponding to the position of the water inlet deflector. A control rod is inserted into the mounting hole. A water outlet is opened at the inner end of the water inlet column corresponding to the other side of the water inlet deflector. During water intake, the water inlet deflector controls the water to enter from one of the water inlet columns. Its characteristic is: The top of the water inlet deflector is provided with a limiting groove, the bottom of the rotating head is arc-shaped and rotatably set in the limiting groove, the bottom of the control rod is provided with a spring hole, a spring is in the spring hole, and the other end of the spring is connected to the upper part of the rotating head.

2. The gear mechanism assembly for grease injection irrigation according to claim 1, characterized in that... The bottom surface of the U-shaped support is provided with a blade, which abuts against the bottom surface of the water inlet deflector.

3. A gear mechanism assembly for grease injection irrigation according to claim 2, characterized in that... The water inlet deflector has support columns with rounded bottoms distributed on both sides of the middle part, which cooperate with the U-shaped grooves on both sides of the U-shaped support base to guide and support left and right swinging.

4. A gear mechanism assembly for grease injection irrigation according to claim 3, characterized in that... The rotating head has a main body diameter that is a cylinder with a smaller top diameter and a larger bottom diameter.

5. A gear mechanism assembly for grease injection irrigation according to claim 1, characterized in that... The shell is a cylindrical structure formed by fitting together a cylindrical main shell and a shell cover. The front end of the main shell is open, the shell cover is a sealing cover located at the front end of the main shell, the water outlet is located at the rear end of the main shell, and the water inlet is located on the shell cover.

6. A gear mechanism assembly for grease injection irrigation according to claim 1, characterized in that... The gear cover has an elliptical cross-section. The bottom of the gear cover extends outward to form a base that fits with the inner wall of the main housing. A step is formed near the bottom of the main housing for the base to rest on. A through hole is opened in the middle of the base for the gear shaft to pass through. The impeller is located inside the housing, on the outside of the base, and connected to the gear shaft. A gasket, bushing, and oil seal are provided at the through hole of the base for sealing.

7. A gear mechanism assembly for grease injection irrigation according to claim 1, characterized in that... The transmission component includes six transmission gears and two shafts. All six transmission gears are double gears. The first gear, second gear, and third gear are sequentially mounted on the first shaft, and the fourth gear, fifth gear, and sixth gear are sequentially mounted on the second shaft. One end of the first gear meshes with the gear shaft, and the other end of the first gear meshes with the fourth gear. The other end of the fourth gear meshes with the second gear, the other end of the second gear meshes with the fifth gear, the other end of the fifth gear meshes with the third gear, the other end of the third gear meshes with the sixth gear, and the other end of the sixth gear extends out of the gear cover and meshes with the gear shaft.

8. A gear mechanism assembly for grease injection irrigation according to claim 7, characterized in that... The inner walls of the gear cover and gear cover are respectively formed with shaft holes for mounting the first shaft and the second shaft. The upper end of the sixth gear is formed with a small gear that extends out of the gear cover and meshes with the gear shaft. The gear cover is provided with a V-ring for increasing the seal at the opening corresponding to the small gear. An O-ring is lined between the sixth gear and the second shaft.

9. A gear mechanism for grease injection irrigation according to claim 1, characterized in that... The upper end of the water inlet column is inclined downward and outward, and an arc-shaped water guide plate connected to the water inlet column is formed on the outer side of the base, corresponding to the outer side of the impeller.

10. A gear mechanism assembly for grease injection irrigation according to claim 7, characterized in that... The base is also provided with two water inlets on the left and right sides. Each water inlet is equipped with a pressure relief pin. A return spring is fitted on the pressure relief pin to keep the water inlet closed. When the water pressure is low, the pressure relief pin will not open. When the water pressure reaches a certain value, the pressure relief pin will be opened.

Images