Self-cleaning hydraulic motor discharge gate

Abstract

The application discloses an automatic flushing hydraulic motor discharge door and relates to the technical field of discharge doors.The application comprises a discharge pipe, a fixed block, a first groove, two threaded plates, an extension block, a second groove, an electric push rod, an adjusting mechanism, two cleaning nozzles and two groups of rotating mechanisms.The fixed block is fixedly connected to the circumferential surface of the discharge pipe, and the fixed block and the discharge pipe are provided with the first groove.The extension block is slidably connected in the first groove, and the extension block is provided with the second groove.The two threaded plates are arranged in the second groove.The electric push rod is fixedly connected in the fixed block to adjust the position of the extension block.The adjusting mechanism is arranged in the second groove to adjust the position of the two threaded plates.The two cleaning nozzles are arranged at the two ends of the two threaded plates to clean the inner wall of the discharge pipe.The two groups of rotating mechanisms are arranged between the two threaded plates and the two cleaning nozzles to adjust the rotation of the cleaning nozzles.The application guarantees the quality of each discharge, and the manpower for cleaning is saved, so that the human resources are saved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of discharge doors, in particular to a hydraulic motor discharge door capable of automatic flushing. BACKGROUND

[0002] The discharge valve is usually used for controlling the output / entry of materials on material production equipment, and in the filter washing and drying equipment of the company, the discharge valve is mainly driven by a double-output-shaft hydraulic cylinder, and an electric contact pressure gauge and an accumulator are required, which is high in cost.

[0003] Meanwhile, the discharge port in the prior art is contaminated by powder on the inner wall of the discharge pipe after discharging, and if not cleaned in time, the quality of the next discharge will be affected, and the existing discharge port cannot be automatically cleaned, and manual cleaning is troublesome and inconvenient to use. SUMMARY

[0004] The purpose of the application is to provide a hydraulic motor discharge door capable of automatic flushing, which provides a discharge pipe capable of cleaning the discharge pipe, solving the existing technical problems.

[0005] To solve the above technical problems, the application is realized by the following technical scheme:

[0006] A hydraulic motor discharge door capable of automatic flushing, comprising a discharge pipe, a fixed block fixedly connected to the circumferential surface of the discharge pipe, the fixed block and the discharge pipe are provided with a first groove, two threaded plates, the first groove is slidably connected with an extension block, the extension block is provided with a second groove, and the two threaded plates are arranged in the second groove, an electric push rod fixedly connected to the fixed block is used to adjust the position of the extension block, an adjusting mechanism arranged in the second groove is used to adjust the position of the two threaded plates, two cleaning nozzles arranged at both ends of the two threaded plates are used to clean the inner wall of the discharge pipe, two groups of rotating mechanisms arranged between the two threaded plates and the two cleaning nozzles are used to adjust the rotation of the cleaning nozzles, two groups of swinging mechanisms arranged between the two threaded plates and the two cleaning nozzles are used to adjust the cleaning angle of the cleaning nozzles, a power part comprising a hydraulic motor and a lead screw connected with the hydraulic motor, a bearing seat is arranged between the lead screw and the hydraulic motor, and a switch structure comprising a valve body connected with the bearing seat and a valve rod arranged in the valve body and connected with the lead screw.

[0007] Optionally, the adjusting mechanism includes a first limiting rod fixedly connected to the second groove, a bidirectional lead screw rotatably connected to the second groove, two threaded plates slidably connected to the circumferential surface of the first limiting rod, the two threaded plates being threaded to the positive and negative thread sections of the circumferential surface of the bidirectional lead screw respectively, and a first drive motor fixedly connected to the extension block, the first drive motor being connected to the bidirectional lead screw via a coupling.

[0008] Optionally, each set of the rotating mechanisms includes a third groove formed within a threaded plate. A first rotating rod is rotatably connected within the third groove. The first rotating rod moves upward through the side end of the threaded plate. A square plate is fixedly connected to the side end of the first rotating rod. A first rotating shaft is rotatably connected within the square plate. A rotating plate is fixedly connected to the circumferential surface of the first rotating shaft. The cleaning nozzle is fixedly connected to the side end of the rotating plate. A first gear is fixedly connected to the circumferential surface of the first rotating rod. A second gear meshing with the first gear is rotatably connected within the third groove. A receiving gap is formed at the bottom end of the threaded plate. A second drive motor is fixedly connected within the receiving gap. The second drive motor is connected to the second gear via a coupling. A connecting pipe is fixedly connected within the threaded plate. A rotating pipe communicating with the connecting pipe is fixedly connected within the first rotating rod. A connecting hose communicating with the rotating pipe is fixedly connected to the side end of the first rotating rod. The connecting hose is fixedly connected to the side end of the cleaning nozzle, and the cleaning nozzle and the connecting hose are connected.

[0009] Optionally, each set of the swing mechanism includes a fourth groove formed in a square plate, the first rotating shaft moving outward through the fourth groove, a first half-tooth gear fixedly connected to the side end of the first rotating shaft, a half-tooth ring slidably connected in the fourth groove, a second rotating shaft rotatably connected in the fourth groove, a second half-tooth gear fixedly connected to the top end of the second rotating shaft, the half-tooth ring and the second half-tooth gear intermittently meshing, a drive rack fixedly connected to the side end of the half-tooth ring, and the drive rack intermittently meshing with the first half-tooth gear.

[0010] Optionally, the second rotating shaft moves downward through the side end of the square plate and extends downward. A circular toothed ring is fixedly connected inside the threaded plate, and a third gear is fixedly connected to the circumferential surface of the second rotating shaft. The third gear meshes with the circular toothed ring.

[0011] Optionally, the bearing housing may be provided with a self-aligning roller bearing and a one-way thrust ball bearing.

[0012] Optionally, a disc spring is provided between the bearing housing and the one-way thrust ball bearing.

[0013] Optionally, the valve stem and the lead screw are connected by a copper nut.

[0014] Optionally, the valve stem and the copper nut are fixedly connected by a guide key.

[0015] The embodiments of the present invention have the following beneficial effects:

[0016] 1. In this technical solution, two cleaning nozzles are used to clean the inside of the discharge pipe. A rotating mechanism drives the cleaning nozzles to perform circumferential cleaning, and a swinging mechanism continuously adjusts the spray angle of the cleaning nozzles, increasing the cleaning range that a single cleaning nozzle can cover. At the same time, the revolution of the cleaning nozzles during rotation drives the swinging mechanism to rotate, avoiding the need for an additional drive source. This effectively cleans the inside of the discharge pipe, preventing the material discharged next time from being contaminated with the powder adhering to the inner wall of the discharge pipe from the previous discharge, thus ensuring the quality of each discharge. Furthermore, no manual cleaning is required, saving manpower and making it more conducive to widespread use.

[0017] 2. Compared with the traditional double-shaft hydraulic cylinder discharge valve, the motor-driven discharge gate structure in this technical solution reduces the need for an electric contact pressure gauge and accumulator, thus lowering costs. Internally, it uses a screw drive, so the hydraulic motor does not fill with oil and the valve stem does not move, making the operation of the filter washing and drying equipment with it installed safer and more reliable.

[0018] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a front perspective view of the present invention;

[0021] Figure 2 This is a first partial cross-sectional view of the present invention;

[0022] Figure 3 This is a second partial cross-sectional view of the present invention;

[0023] Figure 4 This is a third partial sectional view of the present invention;

[0024] Figure 5 This is a first partial perspective view of the present invention;

[0025] Figure 6 This is a fourth partial sectional view of the present invention;

[0026] Figure 7This is a fifth partial sectional view of the present invention;

[0027] Figure 8 This is a second partial perspective view of the present invention;

[0028] Figure 9 This is a partial cross-sectional view of the valve in this invention;

[0029] Figure 10 For the present invention Figure 9 A magnified view of a portion of point A in the middle.

[0030] In the diagram: 1. Valve stem; 2. Copper nut; 3. Lead screw; 4. Valve body; 5. Bearing housing; 6. One-way thrust ball bearing; 7. Butterfly spring; 8. Self-aligning roller bearing; 9. Hydraulic motor; 10. Discharge pipe; 11. First groove; 12. Fixing block; 13. Electric push rod; 14. Extension block; 16. Cleaning nozzle; 17. Second groove; 18. First limit rod; 19. Two-way lead screw; 20. Threaded plate; 21. First drive motor; 2 2. First rotating rod; 23. Square plate; 24. First rotating shaft; 25. Rotating plate; 26. Connecting hose; 27. Rotating tube; 28. Connecting tube; 29. ​​Second drive motor; 30. Third groove; 31. First gear; 32. Second gear; 33. Circular gear ring; 34. Third gear; 35. Second rotating shaft; 36. Fourth groove; 37. First half-tooth gear; 38. Half-tooth gear ring; 39. Second half-tooth gear; 40. Drive rack. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] In the description of this invention, it should be understood that the terms "opening", "upper", "middle", "length", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0033] To keep the following description of the embodiments of the present invention clear and concise, detailed descriptions of known functions and known components are omitted.

[0034] Example 1

[0035] Please see Figures 1-10As shown, this embodiment provides an automatically flushing hydraulic motor discharge gate, including a discharge pipe 10; a fixing block 12, which is fixedly connected to the circumferential surface of the discharge pipe 10, and a first groove 11 is formed in the fixing block 12 and the discharge pipe 10; two threaded plates 20, an extension block 14 is slidably connected in the first groove 11, and a second groove 17 is formed in the extension block 14, with both threaded plates 20 disposed in the second groove 17; an electric push rod 13, which is fixedly connected in the fixing block 12 for adjusting the position of the extension block 14; an adjustment mechanism, which is disposed in the second groove 17 for adjusting the position of the two threaded plates 20; and two cleaning nozzles 16, which are respectively disposed on the two threaded plates. The two ends of 20 are used to clean the inner wall of the discharge pipe 10; two sets of rotating mechanisms are set between the two threaded plates 20 and the two cleaning nozzles 16 to adjust the rotation of the cleaning nozzles 16; two sets of swinging mechanisms are set between the two threaded plates 20 and the two cleaning nozzles 16 to adjust the cleaning angle of the cleaning nozzles 16; the two cleaning nozzles 16 clean the discharge pipe 10, and the rotating mechanism drives the cleaning nozzles 16 to perform circumferential cleaning, and the swinging mechanism drives the cleaning nozzles 16 to continuously adjust the spray angle, increasing the cleaning range that a single cleaning nozzle 16 can radiate, and at the same time, the revolution of the cleaning nozzles 16 during the rotation process drives the swinging mechanism to rotate.

[0036] Furthermore, after the material is discharged, the extension block 14 is pushed away from the first groove 11 by the electric push rod 13, and the extension block 14 changes from being attached to the inner wall of the discharge pipe 10 to being positioned at the center of the discharge pipe 10.

[0037] In one aspect of this embodiment, such as Figure 2 and Figure 3 As shown, the adjustment mechanism includes a first limiting rod 18 fixedly connected to the second groove 17, a bidirectional lead screw 19 rotatably connected to the second groove 17, two threaded plates 20 slidably connected to the circumferential surface of the first limiting rod 18, and the two threaded plates 20 respectively threaded to the positive and negative thread sections of the circumferential surface of the bidirectional lead screw 19. A first drive motor 21 is fixedly connected to the extension block 14, and the first drive motor 21 is connected to the bidirectional lead screw 19 through a coupling. By starting the first drive motor 21, the bidirectional lead screw 19 is driven to rotate. The rotation of the bidirectional lead screw 19 causes the two threaded plates 20 originally located in the second groove 17 to move towards a distance from each other, thereby causing the two threaded plates 20 to respectively drive the two cleaning nozzles 16 out of the second groove 17.

[0038] In one aspect of this embodiment, such as Figure 4 and Figure 6As shown, each rotating mechanism includes a third groove 30 formed within the threaded plate 20. A first rotating rod 22 is rotatably connected within the third groove 30. The first rotating rod 22 moves upward through the side end of the threaded plate 20. A square plate 23 is fixedly connected to the side end of the first rotating rod 22. A first rotating shaft 24 is rotatably connected within the square plate 23. A rotating plate 25 is fixedly connected to the circumferential surface of the first rotating shaft 24. A cleaning nozzle 16 is fixedly connected to the side end of the rotating plate 25. A first gear 31 is fixedly connected to the circumferential surface of the first rotating rod 22. A second gear 32, meshing with the first gear 31, is rotatably connected within the third groove 30. A receiving gap is provided at the bottom end of the threaded plate 20. A second drive motor 29 is fixedly connected within the receiving gap. The second drive motor 29 is connected to the first rotating rod 22 via a coupling. Two gears 32 are connected. A connecting pipe 28 is fixedly connected inside the threaded plate 20. A rotating pipe 27 connected to the connecting pipe 28 is fixedly connected inside the first rotating rod 22. A connecting hose 26 connected to the rotating pipe 27 is fixedly connected to the side end of the first rotating rod 22. The connecting hose 26 is fixedly connected to the side end of the cleaning nozzle 16. The cleaning nozzle 16 and the connecting hose 26 are connected. By starting the second drive motor 29, the second gear 32 is driven to rotate. The rotation of the second gear 32 drives the first gear 31 to rotate. The rotation of the first gear 31 drives the first rotating rod 22 to rotate. The first rotating rod 22 drives the square plate 23 and the cleaning nozzle 16 located in the square plate 23 to rotate. The rotation of the cleaning nozzle 16 can clean the inner wall of the discharge pipe 10.

[0039] Furthermore, the connecting pipe 28 is connected to the external water inlet pipe, which supplies water through a water pump. The rotating pipe 27 and the connecting pipe 28 are rotatably connected, and the rotating pipe 27 can rotate with the rotation of the first rotating rod 22, which can avoid the pipe tangling caused by the continuous rotation of the cleaning nozzle 16.

[0040] In another aspect of this embodiment, such as Figure 7 and Figure 8As shown, each set of swing mechanisms includes a fourth groove 36 formed in the square plate 23. A first rotating shaft 24 extends outward and passes through the fourth groove 36. A first half-tooth gear 37 is fixedly connected to the side end of the first rotating shaft 24. A half-tooth ring 38 is slidably connected in the fourth groove 36. A second rotating shaft 35 is rotatably connected in the fourth groove 36. A second half-tooth gear 39 is fixedly connected to the top end of the second rotating shaft 35. The half-tooth ring 38 and the second half-tooth gear 39 mesh intermittently. A drive rack 40 is fixedly connected to the side end of the half-tooth ring 38. The drive rack 40 and the first half-tooth gear 37 mesh intermittently. The rotation of the two half-tooth gears 39 drives the half-tooth ring 38 to reciprocate linearly within the fourth groove 36. The half-tooth ring 38 then drives the drive rack 40 to reciprocate linearly. The reciprocating movement of the drive rack 40 drives the first half-tooth gear 37 to reciprocate. The reciprocating rotation of the first half-tooth gear 37 drives the first rotating shaft 24 and the rotating plate 25 to reciprocate. The rotating plate 25 then drives the cleaning nozzle 16 to oscillate reciprocally, adjusting the spray angle of the cleaning nozzle 16 during rotation, so that the two cleaning nozzles 16 can radiate to the entire inner wall of the discharge pipe 10.

[0041] Example 2

[0042] Improvements based on Example 1: See Appendix Figure 5 , Figure 7 and Figure 8 The second rotating shaft 35 moves downward through the side end of the square plate 23 and extends downward. A circular toothed ring 33 is fixedly connected inside the threaded plate 20. A third gear 34 is fixedly connected to the circumferential surface of the second rotating shaft 35. The third gear 34 and the circular toothed ring 33 mesh with each other.

[0043] When the square plate 23 rotates, it drives the third gear 34 to perform circular motion. Since the third gear 34 meshes with the circular gear ring 33, it drives the second rotating shaft 35 to rotate. The rotation of the second rotating shaft 35 drives the second half-tooth gear 39 to rotate.

[0044] Example 3

[0045] Improvements based on Example 1: See Appendix Figures 9-10 An automatic flushing hydraulic motor discharge gate includes a power unit and a switching structure. The power unit includes a hydraulic motor 9 and a lead screw 3 that is linked with the hydraulic motor 9. A bearing seat 5 is provided between the lead screw 3 and the hydraulic motor 9. The switching structure includes a valve body 4 connected to the bearing seat 5 and a valve stem 1 disposed in the valve body 4 and linked with the lead screw 3.

[0046] The bearing housing 5 is equipped with a self-aligning roller bearing 8 and a one-way thrust ball bearing 6, and a disc spring 7 is provided between the bearing housing 5 and the one-way thrust ball bearing 6.

[0047] Valve stem 1 and lead screw 3 are connected by copper nut 2; valve stem 1 and copper nut 2 are fixedly connected by guide key.

[0048] like Figure 1 As shown, hydraulic motor 9 receives oil from port N1 and returns oil from port N2. Its output shaft rotates clockwise, driving screw 3 to rotate clockwise via a guide key. The copper nut 2 and screw 3 have a left-hand trapezoidal thread fit. Valve stem 1 and copper nut 2 are fixed together by the guide key and do not move relative to each other. When screw 3 rotates clockwise, copper nut 2 drives valve stem 1 to move inside valve body 4 towards the closing direction of the discharge gate until it is completely sealed. Hydraulic motor 9 receives oil from port N2 and returns oil from port N1. Its output shaft rotates counterclockwise, driving screw 3 to rotate counterclockwise via a guide key. Copper nut 2 drives valve stem 1 inside valve body 4 towards the opening direction of the discharge gate until it is fully open. The arrow on the left in the diagram indicates the closing direction of the discharge gate, and the arrow on the right indicates the opening direction of the discharge gate.

[0049] The usage process and working principle of the technical solution of this invention are as follows: After the material is discharged, the extension block 14 is pushed away from the first groove 11 by the electric push rod 13. The extension block 14 changes from being attached to the inner wall of the discharge pipe 10 to being located at the center of the discharge pipe 10. The first drive motor 21 is started to drive the bidirectional lead screw 19 to rotate. The rotation of the bidirectional lead screw 19 causes the two threaded plates 20 originally located in the second groove 17 to move towards a distance, so that the two threaded plates 20 respectively drive the two cleaning nozzles 16 to leave the second groove 17. The second drive motor 29 is started to drive the second gear 32 to rotate. The rotation of the second gear 32 drives the first gear 31 to rotate. The rotation of the first gear 31 drives the first rotating rod 22 to rotate. The first rotating rod 22 drives the square plate 23 and the cleaning nozzles 16 located in the square plate 23 to rotate. The rotation of the cleaning nozzles 16 can thus clean the inner wall of the discharge pipe 10. The wall is cleaned. When the square plate 23 rotates, it drives the third gear 34 to move in a circular motion. Since the third gear 34 meshes with the circular gear ring 33, it drives the second rotating shaft 35 to rotate. The rotation of the second rotating shaft 35 drives the second half gear 39 to rotate. The rotation of the second half gear 39 drives the half gear ring 38 to move back and forth in a linear motion in the fourth groove 36. The half gear ring 38 then drives the drive rack 40 to move back and forth in a linear motion. The reciprocating movement of the drive rack 40 drives the first half gear 37 to rotate back and forth. The reciprocating rotation of the first half gear 37 drives the first rotating shaft 24 and the rotating plate 25 to rotate back and forth. The rotating plate 25 then drives the cleaning nozzle 16 to swing back and forth, adjusting the spray angle of the cleaning nozzle 16 during the rotation process. This allows the two cleaning nozzles 16 to radiate to the entire inner wall of the discharge pipe 10 without affecting the next discharge.

[0050] It should be noted that in the description of this specification, descriptions such as "first" and "second" are only used to distinguish the features and do not have any actual order or directional meaning. This application is not limited to this.

[0051] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0052] However, as is well known to those skilled in the art, the working principles and wiring methods of the hydraulic motor 9, electric push rod 13, first drive motor 21 and second drive motor 29 are commonplace and belong to conventional means or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0053] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A hydraulically driven discharge gate with automatic flushing capability, characterized in that, include: Discharge pipe (10); A fixing block (12) is fixedly connected to the circumferential surface of the discharge pipe (10), and a first groove (11) is provided in the fixing block (12) and the discharge pipe (10); Two threaded plates (20), an extension block (14) is slidably connected in the first groove (11), and a second groove (17) is opened in the extension block (14), and both threaded plates (20) are disposed in the second groove (17); Electric push rod (13) is fixedly connected to the fixed block (12) to adjust the position of the extension block (14); An adjustment mechanism is provided in the second groove (17) to adjust the position of the two threaded plates (20); Two cleaning nozzles (16) are respectively located at both ends of two threaded plates (20) to clean the inner wall of the discharge pipe (10); Two sets of rotating mechanisms are located between two threaded plates (20) and two cleaning nozzles (16) to adjust the rotation of the cleaning nozzles (16); Two sets of swing mechanisms are respectively located between two threaded plates (20) and two cleaning nozzles (16) to adjust the cleaning angle of the cleaning nozzles (16); The power unit includes a hydraulic motor (9) and a lead screw (3) that is linked with the hydraulic motor (9). A bearing seat (5) is provided between the lead screw (3) and the hydraulic motor (9). The switching structure includes a valve body (4) connected to the bearing housing (5) and a valve stem (1) disposed inside the valve body (4) and engaged in linkage with the lead screw (3).

2. The hydraulic motor discharge gate with automatic flushing capability as described in claim 1, characterized in that, The adjustment mechanism includes a first limiting rod (18) fixedly connected in the second groove (17), a bidirectional lead screw (19) rotatably connected in the second groove (17), two threaded plates (20) slidably connected to the circumferential surface of the first limiting rod (18), and the two threaded plates (20) are respectively threaded to the positive and negative threaded sections of the circumferential surface of the bidirectional lead screw (19). A first drive motor (21) is fixedly connected in the extension block (14), and the first drive motor (21) is connected to the bidirectional lead screw (19) through a coupling.

3. The hydraulic motor discharge gate with automatic flushing capability as described in claim 2, characterized in that, Each set of rotating mechanisms includes a third groove (30) formed in the threaded plate (20), a first rotating rod (22) rotatably connected in the third groove (30), the first rotating rod (22) moving upward through the side end of the threaded plate (20), a square plate (23) fixedly connected to the side end of the first rotating rod (22), a first rotating shaft (24) rotatably connected in the square plate (23), a rotating plate (25) fixedly connected to the circumferential surface of the first rotating shaft (24), a cleaning nozzle (16) fixedly connected to the side end of the rotating plate (25), a first gear (31) fixedly connected to the circumferential surface of the first rotating rod (22), and a first gear (31) rotatably connected in the third groove (30). 31) A second gear (32) meshes with the threaded plate (20). A receiving gap is provided at the bottom end of the threaded plate (20). A second drive motor (29) is fixedly connected in the receiving gap. The second drive motor (29) is connected to the second gear (32) through a coupling. A connecting pipe (28) is fixedly connected in the threaded plate (20). A rotating pipe (27) connected to the connecting pipe (28) is fixedly connected in the first rotating rod (22). A connecting hose (26) connected to the rotating pipe (27) is fixedly connected to the side end of the first rotating rod (22). The connecting hose (26) is fixedly connected to the side end of the cleaning nozzle (16). The cleaning nozzle (16) and the connecting hose (26) are connected.

4. The hydraulic motor discharge gate with automatic flushing capability as described in claim 3, characterized in that, Each set of the swing mechanism includes a fourth groove (36) opened in the square plate (23), the first rotating shaft (24) moves outward through the fourth groove (36), the side end of the first rotating shaft (24) is fixedly connected to a first half-tooth gear (37), the fourth groove (36) is slidably connected to a half-tooth ring (38), the fourth groove (36) is rotatably connected to a second rotating shaft (35), the top end of the second rotating shaft (35) is fixedly connected to a second half-tooth gear (39), the half-tooth ring (38) and the second half-tooth gear (39) mesh intermittently, the side end of the half-tooth ring (38) is fixedly connected to a drive rack (40), the drive rack (40) and the first half-tooth gear (37) mesh intermittently.

5. The hydraulic motor discharge gate with automatic flushing capability as described in claim 4, characterized in that, The second rotating shaft (35) moves downward through the side end of the square plate (23) and extends downward. A circular toothed ring (33) is fixedly connected inside the threaded plate (20). A third gear (34) is fixedly connected to the circumferential surface of the second rotating shaft (35). The third gear (34) meshes with the circular toothed ring (33).

6. A hydraulic motor discharge gate with automatic flushing capability as described in any one of claims 1-5, characterized in that, The bearing housing (5) is provided with a self-aligning roller bearing (8) and a one-way thrust ball bearing (6).

7. A hydraulically driven discharge gate with automatic flushing capability as described in any one of claims 1-5, characterized in that, A disc spring (7) is provided between the bearing housing (5) and the one-way thrust ball bearing (6).

8. A hydraulic motor discharge gate with automatic flushing capability as described in any one of claims 1-5, characterized in that, The valve stem (1) and the lead screw (3) are connected by a copper nut (2).

9. A hydraulically driven discharge gate with automatic flushing capability as described in any one of claims 1-5, characterized in that, The valve stem (1) and the copper nut (2) are fixedly connected by a guide key.

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