Water and fertilizer integrated plant transplanting device

Abstract

The invention relates to the technical field of plant transplanting, and discloses a water and fertilizer integrated plant transplanting device which comprises a transplanting body, a fertilizer supply assembly and a water supply mechanism, the fertilizer supply assembly and the water supply mechanism are fixedly connected to the transplanting body, and the transplanting body is provided with a first operation mechanism used for adjusting the water supply state of the water supply mechanism and the transplanting state of the transplanting body. The transplanting main body is provided with an operating mechanism II for driving the fertilizer supply assembly to supply fertilizer. According to the invention, the integrated operation of seedling planting, fertilization and irrigation in the seedling transplanting process is realized, the seedling transplanting steps are simplified, the seedling transplanting efficiency is improved, and the labor intensity of transplanting personnel is reduced; according to the seedling transplanting device, accurate feeding operation of fertilizer and water is achieved, different amounts of fertilizer and irrigation water can be fed in the transplanting process according to the type of transplanted seedlings and the type of soil, seedling transplanting and planting are facilitated, the phenomenon of seedling burning caused by fertilizer waste and excessive fertilization is avoided, meanwhile, quantitative watering is achieved, and the transplanting quality is improved.

Description

Technical Field

[0001] This invention relates to the field of plant transplanting technology, and more particularly to a water and fertilizer integrated plant transplanting device. Background Technology

[0002] In traditional agricultural planting or horticultural plant transplanting, planting, fertilization, and watering are usually carried out as three separate processes, which are cumbersome and time-consuming. Furthermore, manual fertilization and watering make it difficult to precisely control the amount of fertilizer and water used, easily leading to fertilizer waste, soil compaction, and the inefficient use of water resources, directly affecting plant growth and survival rates. In addition, existing transplanting tools have limited functionality in breaking up and separating the soil, and cannot adequately adapt to the transplanting needs under different soil conditions. Therefore, developing a transplanting device that achieves integrated water and fertilizer management, precise control, and easy operation is of significant practical importance. Summary of the Invention

[0003] To address the technical problems existing in the prior art, this invention provides an integrated water and fertilizer plant transplanting device.

[0004] The present invention is achieved by the following technical solution: a water and fertilizer integrated plant transplanting device, comprising a transplanting body, a fertilizer supply component and a water supply mechanism fixed on the transplanting body, wherein the transplanting body is provided with an operating mechanism one for adjusting the water supply status of the water supply mechanism and the transplanting status of the transplanting body, and an operating mechanism two for driving the fertilizer supply component to supply fertilizer.

[0005] The fertilizer supply assembly includes a storage box fixed to the outside of the transplanting body, a conveying pipe fixed to the bottom of the storage box and fixed to the transplanting body, and a pusher shaft rotatably connected to the storage box. A ring-shaped cover is fixed to the top of the storage box. Inside the cover, a support plate is provided that is rotatably sleeved with the outer ring of the pusher shaft extending out of the storage box. A bearing tube is fixed to the outer ring of the support plate. A ratchet is fixed to the inner ring of the bearing tube. The inner ring of the ratchet abuts against a pawl rotatably connected to the top of the pusher shaft. A gear one is fixedly sleeved on the outer ring of the bearing tube. A gear two meshes with one side of the gear one. A driven shaft rotatably sleeved on the inner ring of the gear two is fixedly sleeved with the top of the storage box. A sleeve fixed to the top of the storage box is rotatably sleeved on the outer ring of the driven shaft. A spring one for the rotation of the driven shaft is provided inside the sleeve. The driven shaft is connected to the operating mechanism two.

[0006] As a further improvement to the above solution, the transplanting body includes a transplanting cylinder and a movable tube that is slidably sleeved on the outer ring of the transplanting cylinder. The movable tube is fixedly connected to a pull rod that is arranged in an array along its axis. The other end of the pull rod is rotatably connected to a connecting rod one. The other end of the connecting rod one is fixedly connected to a clamp. The connecting rod one is rotatably connected to a connecting rod two that is fixedly connected to the bottom outer ring of the transplanting cylinder through a rotating shaft.

[0007] As a further improvement to the above solution, the operating mechanism includes a crossbar fixed to the transplanting body, and a lever hinged to the transplanting body is provided at the bottom of the crossbar. The lever is connected to a pull rope that drives the transplanting body to open and close and adjusts the water supply status.

[0008] As a further improvement to the above solution, the water supply mechanism includes a water storage tank fixed to the outside of the transplanting body and a spraying box set at the bottom of the water storage tank. A water pipe 1 fixed to the bottom of the water storage tank and the spraying box is fixed to the bottom of the spraying box. A water pipe 2 is fixed to the bottom of the spraying box. The other end of the water pipe 2 is connected to a spray pipe connected to the transplanting body. Valves are installed on both water pipe 1 and water pipe 2. A spring 2 fixed to the transplanting body is connected to one side of the valve stem, and a spring 3 fixed to the operating mechanism 1 is connected to the other side of the valve stem.

[0009] As a further improvement to the above solution, the second operating mechanism includes a horizontal tube connected to the transplanting body, an adjusting rod rotatably sleeved at the other end of the horizontal tube, a screw fixedly connected to one end of the adjusting rod extending into the horizontal tube, a sliding tube threadedly sleeved on the outer ring of the screw, an extension channel extending along its length provided at the bottom of the horizontal tube, a blocking rod slidably connected to the extension channel, a blocking rod extending from the extension channel into the horizontal tube and fixedly connected to the sliding tube at one end, and a second actuating rod hinged to the transplanting body installed at the bottom of the horizontal tube, the second actuating rod being fixedly connected to a second pull rope connected to the fertilizer supply component.

[0010] As a further improvement to the above solution, a spiral conveying blade is fixedly sleeved on the outer ring of one end of the pusher shaft that extends into the storage box, and a blocking unit for fertilizer blocking is installed at the top opening of the conveying pipe. The blocking unit includes a fan-shaped blocking plate fixed to the inner wall of the conveying pipe and arranged in an array. The blocking plate is made of rubber material.

[0011] As a further improvement to the above solution, the pawl is rotatably connected to the pusher shaft via a rotating shaft, and a spring four, which is fixed to the pusher shaft, is fixedly connected to one side of the pawl.

[0012] As a further improvement to the above solution, the cover has an insertion hole for the second operating mechanism to extend into, and a guide wheel for guiding the second operating mechanism is installed on the upper side of the side that extends into the inside of the cover.

[0013] As a further improvement to the above solution, a hopper communicating with the inside of the storage box is installed on the side of the storage box away from the transplanting body, and a cover plate is threaded onto the opening at the top of the cover.

[0014] As a further improvement to the above solution, the bottom of the first spring is fixedly connected to the bottom of the storage box, the top of the first spring is fixedly connected to the outer ring of the pusher shaft, and the spring is fitted onto the outer ring of the pusher shaft.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. This invention realizes the integrated operation of seedling planting, fertilization and irrigation in the seedling transplanting process, simplifies the seedling transplanting steps, improves the efficiency of seedling transplanting, and reduces the labor intensity of transplanting personnel.

[0017] 2. This invention enables precise application of fertilizer and water. It can apply different amounts of fertilizer and irrigation water during the transplanting process according to the type of seedling and soil, which facilitates seedling transplanting and avoids fertilizer waste and seedling burn caused by excessive fertilization. At the same time, it provides quantitative watering to improve the quality of transplanting. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a water and fertilizer integrated plant transplanting device provided by the present invention;

[0019] Figure 2 This is a side view of a water and fertilizer integrated plant transplanting device provided by the present invention;

[0020] Figure 3 This is a top view of a water and fertilizer integrated plant transplanting device provided by the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the fertilizer supply component provided by the present invention;

[0022] Figure 5 Provided by the present invention Figure 4 A partially enlarged structural diagram;

[0023] Figure 6 This is a schematic diagram of the ratchet distribution provided by the present invention;

[0024] Figure 7 This is a schematic diagram of the barrier plate provided by the present invention.

[0025] Explanation of key symbols:

[0026] 1. Transplanting body; 2. Operating mechanism one; 3. Water supply mechanism; 4. Operating mechanism two; 5. Fertilizer supply component; 11. Transplanting cylinder; 12. Movable tube; 13. Pull rod; 14. Connecting rod two; 15. Connecting rod one; 21. Horizontal bar; 22. Actuating rod one; 23. Pull rope one; 31. Water tank; 32. Sprayer box; 33. Water pipe one; 34. Water pipe two; 35. Valve; 36. Spring three; 37. Spring two; 41. Horizontal tube; 42. Adjusting rod; 43. 44. Actuating lever 2; 55. Pull rope 2; 56. Storage box; 57. Hopper; 58. Conveying pipe; 59. Blocking unit; 50. Blocking plate; 51. Pushing shaft; 52. Cover; 53. Support plate; 54. Bearing pipe; 55. Ratchet; 56. Pawl; 57. Gear 1; 58. Gear 2; 59. Driven shaft; 50. Sleeve; 511. Insertion hole; 512. Spring 1; 513. Guide wheel; 514. Conveying blade; 515. Spring 4. Detailed Implementation

[0027] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0028] Example 1:

[0029] Please combine Figures 1-7 This embodiment of a water and fertilizer integrated plant transplanting device includes a transplanting body 1, a fertilizer supply component 5 fixed to the transplanting body 1, and a water supply mechanism 3. The transplanting body 1 is provided with an operating mechanism 1 2 for adjusting the water supply state of the water supply mechanism 3 and the transplanting state of the transplanting body 1. The transplanting body 1 is also provided with an operating mechanism 2 4 for driving the fertilizer supply component 5 to supply fertilizer. Irrigation water for transplanting is placed in the water supply mechanism 3, and fertilizer is placed in the fertilizer supply component 5. During transplanting, the transplanting body 1 is inserted into the transplanting soil. According to the transplanting needs, the operating mechanism 2 4 drives the fertilizer supply component 5 to supply fertilizer into the transplanting body 1. The operating mechanism 1 2 is used to plant the seedlings placed inside the transplanting body 1 in the soil and drive the water supply mechanism 3 to supply water to the transplanted seedlings.

[0030] Fertilizer supply component 5 includes a storage box 51 fixed to the outside of the transplanting body 1, a conveying pipe 53 fixed to the bottom of the storage box 51 and fixed to the transplanting body 1, and a pusher shaft 55 rotatably connected to the storage box 51. A ring-shaped cover 56 is fixed to the top of the storage box 51. Inside the cover 56 is a support plate 57 that rotatably engages with the outer ring of the pusher shaft 55 extending out of the storage box 51. A bearing pipe 58 is fixed to the outer ring of the support plate 57. A ratchet 59 is fixed to the inner ring of the bearing pipe 58. The inner ring of the ratchet 59 abuts against the pusher shaft 55. A pawl 510 is rotatably connected to the top of the material shaft 55. A gear 511 is fixedly sleeved on the outer ring of the bearing tube 58. A gear 512 meshes on one side of the gear 511. A driven shaft 513 is fixedly sleeved on the inner ring of the gear 512 and rotatably sleeved on the top of the storage box 51. A sleeve 514 is rotatably sleeved on the outer ring of the driven shaft 513 and fixedly connected to the top of the storage box 51. A spring 516 for the rotation of the driven shaft 513 is provided inside the sleeve 514. The driven shaft 513 is connected to the operating mechanism 4.

[0031] A spiral conveying blade 518 is fixedly sleeved on the outer ring of one end of the pusher shaft 55 that extends into the storage box 51. A blocking unit 54 for fertilizer blocking is installed at the top opening of the conveying pipe 53. The blocking unit 54 includes a fan-shaped blocking plate 541 fixed to the inner wall of the conveying pipe 53 and arranged in an array. The blocking plate 541 is made of rubber material. A pawl 510 is rotatably connected to the pusher shaft 55 via a rotating shaft. A spring 519 fixed to one side of the pawl 510 and fixed to the pusher shaft 55 is also fixed. Cover 56 An insertion hole 515 is provided for the second operating mechanism 4 to extend through, and a guide wheel 517 is installed on the upper side of the side extending into the inside of the cover 56 to guide the second operating mechanism 4; a hopper 52 communicating with the inside of the storage box 51 is installed on the side of the storage box 51 away from the transplanting body 1, and a cover plate is threaded onto the top opening of the cover 56; the bottom of the first spring 516 is fixedly connected to the bottom of the storage box 51, the top of the first spring 516 is fixedly connected to the outer ring of the push shaft 55, and the first spring 516 is sleeved on the outer ring of the push shaft 55;

[0032] When the second pull rope 44 is pulled by the second actuating rod 43, the length of the pull of the second pull rope 44 is determined according to the position of the blocking rod on the horizontal tube 41. The second pull rope 44 drives the driven shaft 513 to rotate, and then the second gear 512 drives the first gear 511 to rotate. At this time, because the pawl 510 locks the ratchet 59 in one direction, the ratchet 59 and the push shaft 55 are in a relatively stationary state. When the ratchet 59 is driven to rotate by the first gear 511 and the bearing tube 58, the ratchet 59 and the push shaft 55 rotate together. Then, the push shaft 55 drives the conveying blades on it to convey the fertilizer inside the storage box 51 downward into the conveying tube 53. Since the length of the pull rope 44 is limited by the blocking rod, the number of rotations of the driven shaft 513 is controlled by the length of the pull rope 44, thus achieving... In the quantitative fertilizer supply operation, when the fertilizer is conveyed downwards, it is squeezed and broken through the rubber baffle plate 541 by the conveying blades. When the conveying blades are not rotating, the baffle plate 541 blocks the fertilizer, preventing it from continuing to flow downwards along the conveying pipe 53 when the supply stops, thus achieving precise control of the fertilizer supply. After the fertilizer supply is completed, the second lever 43 is released, and under the action of the first spring 516, the second pull rope 44 moves back to the initial position, causing the driven shaft 513 to reverse. After that, the pawl 510 does not restrict the ratchet 59, allowing the ratchet 59 to rotate relative to the push shaft 55. Since the conveying blades are blocked by the fertilizer, the reverse rotation of the conveying blades is hindered. At this time, the push shaft 55 cannot rotate in the reverse direction, so that when the second pull rope 44 returns, it does not cause the push shaft 55 to rotate, thus preventing the fertilizer from being conveyed downwards.

[0033] Example 2:

[0034] Based on Example 1, this embodiment further improves upon the following: The transplanting body 1 includes a transplanting cylinder 11 and a movable tube 12 that is slidably sleeved on the outer ring of the transplanting cylinder 11. The movable tube 12 is fixedly connected to a pull rope 13. Pull rods 13 arranged in an array along the axis of the movable tube 12 are fixedly connected to the movable tube 12. A connecting rod 15 is rotatably connected to the other end of the pull rod 13. A clamp 16 is fixedly connected to the other end of the connecting rod 15. The connecting rod 15 is rotatably connected to a connecting rod 24 that is fixedly connected to the bottom outer ring of the transplanting cylinder 11 via a rotating shaft. The seedling is put into the transplanting cylinder 11 from the top and the clamp 16 is inserted into the soil. When the movable tube 12 is pulled upward by the pull rope 23, the movable tube 12 moves upward, which drives the pull rod 13 to move and then causes the clamp 16 to deflect outward, so that the seedling falls into the soil. The clamp 16 has a four-sided pyramidal structure and is arc-shaped. The clamp 16 is made of rigid material, which makes it easy to extend into the soil.

[0035] The operating mechanism 12 includes a crossbar 21 fixed to the transplanting body 1. The bottom of the crossbar 21 is provided with a lever 22 hinged to the transplanting body 1. The lever 22 is connected to a pull rope 23 that drives the transplanting body 1 to open and close and adjusts the water supply mechanism 3. The pull rope 23 is fixed to the movable tube 12.

[0036] The water supply mechanism 3 includes a water storage tank 31 fixed to the outside of the transplanting cylinder 11 of the transplanting body 1 and a spraying box 32 set at the bottom of the water storage tank 31. A water pipe 33 fixed to the bottom of the water storage tank 31 and the spraying box 32 are fixed to the bottom of the spraying box 32. A water pipe 34 fixed to the bottom of the spraying box 32 is connected to the other end of the water pipe 34 and the spraying pipe connected to the transplanting cylinder 11 of the transplanting body 1. A valve 35 is installed on both the water pipe 33 and the water pipe 34. A spring 37 fixed to the transplanting cylinder 11 of the transplanting body 1 is connected to one side of the valve stem of the valve 35. A spring 36 fixed to the pull rope 23 of the operating mechanism 2 is connected to the other side of the valve stem of the valve 35.

[0037] When transplanting is not in progress, valve 35 on water pipe 33 on water storage tank 31 is open, allowing irrigation water inside water storage tank 31 to flow into spray box 32. Valve 35 on water pipe 34 on spray box 32 is closed to prevent irrigation water leakage when transplanting is not in progress. When pull rope 23 is pulled upward by lever 22, pull rope 23 drives spring 36 to move, which in turn drives valve stem on valve 35 to deflect, causing valve 35 on water pipe 33 to close, preventing irrigation water in water storage tank 31 from entering spray box 32. Valve 35 on water pipe 34 opens, allowing irrigation water in spray box 32 to enter spray pipe along water pipe 34. At the same time, pull rope 23 drives movable pipe 12 to move upward, which drives lever 13 to move and causes clamp 16 to deflect outward, causing the seedling to fall into the soil. Water flows down from inside transplanting cylinder 11 along spray pipe to provide quantitative irrigation for the transplanted seedling.

[0038] When the lever 22 is released, and the first pull rope 23 moves downward under the action of the second spring 37, the valve stem on the valve 35 deflects, the valve 35 on the first water pipe 33 opens, and the valve 35 on the second water pipe 34 closes. At this time, the water in the storage tank 31 enters the spray box 32 along the first water pipe 33, completing the water storage for the next irrigation and realizing the quantitative water supply operation for irrigation.

[0039] Operating mechanism 2 4 includes a horizontal tube 41 connected to the transplanting cylinder 11 of the transplanting body 1. An adjusting rod 42 is rotatably sleeved at the other end of the horizontal tube 41. A screw is fixedly connected to one end of the adjusting rod 42 that extends into the horizontal tube 41. A sliding tube is threadedly sleeved on the outer ring of the screw. An extension channel is provided at the bottom of the horizontal tube 41 along its length direction. A blocking rod is slidably connected to the extension channel. One end of the blocking rod that extends into the horizontal tube 41 from the extension channel is fixedly connected to the sliding tube. A second actuating rod 2 43 is installed at the bottom of the horizontal tube 41 and is hinged to the transplanting cylinder 11 of the transplanting body 1. A second pull rope 2 44 is fixedly connected to the pushing shaft 55 of the fertilizer supply component 5. First, the position of the blocking rod is adjusted according to the amount of fertilizer applied. The adjusting rod 42 located on the horizontal tube 41 is rotated. Then the screw rotates, and the screw drives the sliding tube to move along the length direction of the horizontal tube 41. The position of the blocking rod in the horizontal tube 41 is adjusted, thereby realizing the adjustment of the amount of fertilizer supplied by the fertilizer supply component 5.

[0040] This invention integrates seedling planting, fertilization, and irrigation during seedling transplantation, simplifying the transplanting process, improving efficiency, and reducing labor intensity. It also enables precise application of fertilizer and water, allowing for the application of varying amounts based on the seedling type and soil type. This facilitates transplanting, avoids fertilizer waste and over-fertilization that could burn seedlings, and ensures quantitative watering for improved transplanting quality.

[0041] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A water and fertilizer integrated plant transplanting device, characterized in that, It includes a transplanting body, a fertilizer supply component and a water supply mechanism fixed to the transplanting body, and an operating mechanism 1 for adjusting the water supply status of the water supply mechanism and the transplanting status of the transplanting body. An operating mechanism 2 for driving the fertilizer supply component to supply fertilizer is also provided on the transplanting body. The fertilizer supply assembly includes a storage box fixed to the outside of the transplanting body, a conveying pipe fixed to the bottom of the storage box and fixed to the transplanting body, and a pusher shaft rotatably connected to the storage box. A ring-shaped cover is fixed to the top of the storage box. Inside the cover, a support plate is provided that is rotatably sleeved with the outer ring of the pusher shaft extending out of the storage box. A bearing tube is fixed to the outer ring of the support plate. A ratchet is fixed to the inner ring of the bearing tube. The inner ring of the ratchet abuts against a pawl rotatably connected to the top of the pusher shaft. A gear one is fixedly sleeved on the outer ring of the bearing tube. A gear two meshes with one side of the gear one. A driven shaft rotatably sleeved on the inner ring of the gear two is fixedly sleeved with the top of the storage box. A sleeve fixed to the top of the storage box is rotatably sleeved on the outer ring of the driven shaft. A spring one for the rotation of the driven shaft is provided inside the sleeve. The driven shaft is connected to the operating mechanism two.

2. The water and fertilizer integrated plant transplanting device as described in claim 1, characterized in that, The transplanting body includes a transplanting cylinder and a movable tube that is slidably sleeved on the outer ring of the transplanting cylinder. The movable tube is fixedly connected to a pull rod that is arranged in an array along its axis. The other end of the pull rod is rotatably connected to a connecting rod one. The other end of the connecting rod one is fixedly connected to a clamp. The connecting rod one is rotatably connected to a connecting rod two that is fixedly connected to the bottom outer ring of the transplanting cylinder through a rotating shaft.

3. The water and fertilizer integrated plant transplanting device as described in claim 1, characterized in that, The operating mechanism includes a crossbar fixed to the transplanting body, and a lever hinged to the transplanting body is provided at the bottom of the crossbar. The lever is connected to a pull rope that drives the transplanting body to open and close and adjusts the water supply status.

4. The water and fertilizer integrated plant transplanting device as described in claim 1, characterized in that, The water supply mechanism includes a water storage tank fixed to the outside of the transplanting body and a spraying box set at the bottom of the water storage tank. A water pipe 1 fixed to the bottom of the water storage tank and a water pipe 2 fixed to the bottom of the spraying box are connected to the bottom of the spraying box. The other end of the water pipe 2 is connected to a spray pipe connected to the transplanting body. Valves are installed on both water pipe 1 and water pipe 2. A spring 2 fixed to the transplanting body is connected to one side of the valve stem, and a spring 3 fixed to the operating mechanism 1 is connected to the other side of the valve stem.

5. The water and fertilizer integrated plant transplanting device as described in claim 1, characterized in that, The second operating mechanism includes a horizontal tube connected to the transplanting body. An adjusting rod is rotatably sleeved at the other end of the horizontal tube. A screw is fixedly connected to one end of the adjusting rod that extends into the horizontal tube. A sliding tube is threaded onto the outer ring of the screw. An extension channel is provided at the bottom of the horizontal tube along its length. A blocking rod is slidably connected to the extension channel. One end of the blocking rod that extends into the horizontal tube from the extension channel is fixedly connected to the sliding tube. A second actuating rod is installed at the bottom of the horizontal tube and is hinged to the transplanting body. A second pull rope connected to the fertilizer supply component is fixedly connected to the second actuating rod.

6. The water and fertilizer integrated plant transplanting device as described in claim 1, characterized in that, The outer ring of the pusher shaft extending into the storage box is fixedly fitted with a spiral conveying blade. A blocking unit for fertilizer blocking is installed at the top opening of the conveying pipe. The blocking unit includes a fan-shaped blocking plate fixed to the inner wall of the conveying pipe and arranged in an array. The blocking plate is made of rubber material.

7. The water and fertilizer integrated plant transplanting device as described in claim 1, characterized in that, The pawl is rotatably connected to the pusher shaft via a rotating shaft, and a spring four, which is fixed to the pusher shaft, is fixed to one side of the pawl.

8. The water and fertilizer integrated plant transplanting device as described in claim 1, characterized in that, The cover has an insertion hole for the second operating mechanism to extend into, and a guide wheel for guiding the second operating mechanism is installed on the upper side of the side that extends into the inside of the cover.

9. The water and fertilizer integrated plant transplanting device as described in claim 1, characterized in that, The storage box has a hopper connected to the inside of the storage box on the side away from the transplanting body, and a cover plate is threaded onto the opening at the top of the cover.

10. The water and fertilizer integrated plant transplanting device as described in claim 1, characterized in that, The bottom of the first spring is fixedly connected to the bottom of the storage box, the top of the first spring is fixedly connected to the outer ring of the pusher shaft, and the spring is also fitted onto the outer ring of the pusher shaft.

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