Plant fixing structure for landscaping

Abstract

The present invention relates to the technical field of plant fixation, and discloses a plant fixation structure for landscaping, comprising a support tube and a binding belt, one end of the binding belt is fixedly connected to a first plug, and a shell is arranged on one side of the first plug. In the present invention, by setting a binding belt and a limit control component, the binding belt can tightly fix one end of the support tube to the outer wall of the tree, and then insert one end of the support tube into the soil, so that the support tube can stably support the tree, avoid the problem that the tree is easy to sway with the wind, and is conducive to the growth of the tree. The device is simple to use. When in use, the first plug is inserted into the first jack, and then the vertical axis is rotated, so that the tension belt can tightly fix one end of the support tube to the outer wall of the tree, which is convenient and quick. When the tree grows thicker, the binding belt can be gradually loosened by reversing the rotating shaft, so as to avoid the binding belt strangling the tree.

Description

Technical Field

[0001] The invention relates to the technical field of plant fixing, in particular to a plant fixing structure for gardening. Background Art

[0002] Trees are the main part of urban greening. They play an important role in the purification and beauty of cities. As the concept of environmental protection becomes more and more popular, the green area of ​​cities is also increasing. Batches of trees are planted in every corner of the city. Due to geographical restrictions, it is difficult to dig deep enough to plant new trees in some areas. Trees are easy to fall over, especially in windy and rainy weather, which also threatens the safety of passers-by. At the same time, trees with unfastened roots shake in windy days, which is not conducive to the growth of the tree root system. Therefore, newly planted trees need to be fixed with a fixed structure.

[0003] At present, when fixing trees, a support frame is generally used to fix the trees. When in use, one end of the support frame is fixed on the tree, and the other end of the support frame is fixed in the ground, so that the support frame supports the tree and makes the tree stable. The end of the support frame fixed on the tree is generally tied directly to the tree. For the support frame directly tied to the tree, when the tree grows, the tied object will not grow synchronously, which can easily strangle the tree and is not conducive to the growth of the tree. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose a plant fixing structure for landscaping.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A plant fixing structure for landscaping includes a support tube and a binding belt, one end of the binding belt is fixedly connected to a first plug, and a shell is provided on one side of the first plug, a first jack matching the first plug is provided on the side wall of the shell, the other end of the binding belt passes through the shell, clamping rollers are provided on both sides of the binding belt inside the shell, and the clamping rollers clamp the binding belt tightly, the inner wall of the clamping roller is fixedly connected to a rotating shaft, and the rotating shaft is rotatably connected to the inner wall of the shell, the upper surface of the shell is fixedly connected to a control box, one end of one of the rotating shafts passes through the shell and extends to the inside of the control box, and a limit control component is provided in the control box, and a protective cover is fixedly connected to the bottom of the shell, and a connecting piece is provided in the protective cover.

[0007] Preferably, the limit control assembly includes a worm gear arranged in a control box, and the worm gear fixed sleeve is arranged on the outer wall of the rotating shaft, one side wall of the worm gear is meshed with a worm, and both ends of the worm are fixedly connected to a rotating rod, the rotating rod is rotatably connected to the inner wall of the control box, and the outer wall fixed sleeve of the rotating rod is provided with a first gear, the inner wall of the control box is fixedly connected to a fixing plate, and one side wall of the fixing plate is rotatably connected to a vertical rod, one end of the vertical rod is fixedly connected to a second gear, and the second gear is meshed with the first gear, one end of the vertical rod is fixedly connected to a vertical shaft, and one end of the vertical shaft passes through the control box and extends to the outside of the control box, and the outer wall sleeve of the vertical shaft is provided with a control assembly.

[0008] Preferably, the control component includes a wheel rotatably sleeved on the outer wall of the vertical shaft, and a pull rope is wound around the outer wall of the wheel, one end of the pull rope is fixed to the outer wall of the wheel, and the other end of the pull rope passes through the control box and extends to the outside of the control box, one end of the pull rope outside the control box is fixedly connected to a second plug, and a second jack matching the second plug is provided on one side wall of the control box, a sleeve is rotatably sleeved on the outer wall of the vertical shaft, and one end of the sleeve is fixedly connected to the wheel, the other end of the sleeve passes through the control box and extends to the outside of the control box, and the outer wall of the sleeve outside the control box is threadedly connected to a first bolt.

[0009] Preferably, the connecting member includes two third gears arranged in the protective cover, the two third gears are meshed with each other, and the two third gears are fixedly connected to the two rotating shafts respectively.

[0010] Preferably, a connecting head is provided on one side of the binding belt, and a slot is provided on one side wall of the connecting head, the binding belt is arranged through the slot, a limiting hole is provided at the lower end of the connecting head, and the limiting hole is matched with the support tube, a second bolt is threadedly connected to one side wall of the connecting head, and one end of the second bolt passes through the connecting head and abuts against the support tube.

[0011] Preferably, the inner wall of the support tube is threadedly connected with a threaded column, and the lower end of the threaded column is fixedly connected with a cone plug, the outer wall of the threaded column is threadedly sleeved with a nut, and one side wall of the nut abuts against the support tube.

[0012] Preferably, a soft cushion is fixedly connected to the inner wall of the connecting head.

[0013] Preferably, a swivel is fixedly sleeved on the outer wall of the sleeve, and anti-slip grooves are provided on the outer wall of the swivel.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention provides a binding belt and a limit control component, etc., so that the binding belt can tightly fix one end of the support tube to the outer wall of the tree, and then insert one end of the support tube into the soil, so that the support tube can stably support the tree, avoid the problem that the tree is easily swayed by the wind, and is conducive to the growth of the tree. The device is easy to use. When in use, the first plug is inserted into the first socket, and then the vertical axis is rotated, so that the tensioning belt can tightly fix one end of the support tube to the outer wall of the tree. It is convenient and quick. When the tree grows thicker, the rotation axis can be reversed to gradually loosen the binding belt, so that the binding belt can be prevented from strangling the tree.

[0016] 2. The present invention, by setting a control component, when the outer wall of the tree grows, the outer wall of the grown tree will stretch the pull rope, and when the tree stretches the pull rope, the pull rope will pull the wire wheel to reverse, and the reversed wire wheel drives the sleeve and the vertical axis to reverse, the reversed vertical axis drives the vertical rod to reverse, the reversed vertical rod can drive the second gear to reverse, the reversed second gear can drive the first gear to reverse, the reversed first gear can drive the rotating rod to reverse, the reversed rotating rod drives the worm to reverse, the reversed worm drives the worm wheel to reverse, and the reversed worm wheel drives the rotating shaft and the clamping roller to rotate, so that the two rotating clamping rollers will drive the binding belt to gradually loosen, and as the tree grows, the binding belt gradually loosens, which can avoid the binding belt from strangling the tree, which is more conducive to the growth of the tree. At the same time, in this way, when loosening the binding belt, no manual operation is required, which further facilitates the use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a plant fixing structure for landscaping proposed by the present invention;

[0018] Figure 2 A schematic diagram of the three-dimensional structure of a plant fixing structure for landscaping proposed by the present invention;

[0019] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0020] Figure 4 for Figure 2 The enlarged structural diagram at B in the middle;

[0021] Figure 5 for Figure 2 The enlarged structural diagram at C in the middle;

[0022] Figure 6 for Figure 2 The enlarged structural diagram at D in the middle;

[0023] Figure 7 A partial cross-sectional structural schematic diagram of a plant fixing structure for landscaping proposed by the present invention;

[0024] Figure 8 for Figure 7 The enlarged structural diagram at E in the middle;

[0025] Fig. 9 for Figure 8 Schematic diagram of the structure enlarged at F in the middle.

[0026] In the figure: 1. support tube; 2. binding belt; 3. first plug; 4. shell; 5. first socket; 6. clamping roller; 7. rotating shaft; 8. control box; 9. protective cover; 10. worm gear; 11. worm; 12. rotating rod; 13. first gear; 14. fixing plate; 15. vertical rod; 16. second gear; 17. vertical shaft; 18. reel; 19. pull rope; 20. second plug; 21. second socket; 22. sleeve; 23. first bolt; 24. third gear; 25. connector; 26. slot; 27. limit hole; 28. second bolt; 29. ​​threaded column; 30. cone plug; 31. nut; 32. cushion; 33. swivel. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-Figure 9 A plant fixing structure for landscaping includes a support tube 1 and a binding belt 2, one end of the binding belt 2 is fixedly connected to a first plug 3, and a shell 4 is arranged on one side of the first plug 3, and a first jack 5 matching the first plug 3 is opened on the side wall of the shell 4, the other end of the binding belt 2 passes through the shell 4, and clamping rollers 6 are arranged on both sides of the binding belt 2 located inside the shell 4, and the clamping rollers 6 are arranged to tightly clamp the binding belt 2, the inner wall of the clamping roller 6 is fixedly connected to a rotating shaft 7, and the rotating shaft 7 is rotatably connected to the inner wall of the shell 4, and a control box 8 is fixedly connected to the upper surface of the shell 4, one end of one of the rotating shafts 7 passes through the shell 4 and extends to the inside of the control box 8, and a limit control component is arranged in the control box 8, and a protective cover 9 is fixedly connected to the bottom of the shell 4, and a connecting piece is arranged in the protective cover 9.

[0029] It can be seen from the above structure that: by setting the binding belt 2 and the limit control component, the binding belt 2 can fix one end of the support tube 1 on the outer wall of the tree, and then insert one end of the support tube 1 into the soil, so that the support tube 1 can stably support the tree, avoiding the problem that the tree is easily swayed by the wind, which is beneficial to the growth of the tree, and the device is simple to use. When in use, insert the first plug 3 into the first jack 5, and then rotate the shaft 7, so that the binding belt 2 can tightly fix one end of the support tube 1 on the outer wall of the tree, which is convenient and quick. When the tree grows thicker, the rotating shaft 7 can be reversed to gradually loosen the binding belt 2, which can avoid the binding belt 2 from strangling the tree.

[0030] Furthermore, the limit control assembly includes a worm wheel 10 arranged in the control box 8, and the worm wheel 10 is fixedly sleeved on the outer wall of the rotating shaft 7, a side wall of the worm wheel 10 is meshed with a worm 11, and both ends of the worm 11 are fixedly connected to a rotating rod 12, the rotating rod 12 is rotatably connected to the inner wall of the control box 8, and the outer wall of the rotating rod 12 is fixedly sleeved with a first gear 13, the inner wall of the control box 8 is fixedly connected to a fixing plate 14, and a side wall of one side of the fixing plate 14 is rotatably connected to a vertical rod 15, one end of the vertical rod 15 is fixedly connected to a second gear 16, and the second The gear 16 is meshed with the first gear 13, one end of the vertical rod 15 is fixedly connected to the vertical shaft 17, and one end of the vertical shaft 17 passes through the control box 8 and extends to the outside of the control box 8, and the outer wall of the vertical shaft 17 is sleeved with a control component; by setting the worm wheel 10 and the worm 11 to be used in conjunction with each other, since the worm wheel 10 cannot drive the worm 11 to rotate, in the absence of external force, the connection between the support tube 1 and the tree will not loosen at will, so that the support tube 1 can stably support the tree, avoid the problem of the tree being easily swayed by the wind, and is conducive to the growth of the tree.

[0031] Furthermore, the control assembly includes a wire wheel 18 rotatably sleeved on the outer wall of the vertical shaft 17, and a pull rope 19 is wound around the outer wall of the wire wheel 18, one end of the pull rope 19 is fixed to the outer wall of the wire wheel 18, and the other end of the pull rope 19 passes through the control box 8 and extends to the outside of the control box 8, one end of the pull rope 19 located outside the control box 8 is fixedly connected to a second plug 20, and a second jack 21 matching the second plug 20 is opened on one side wall of the control box 8, and a sleeve 22 is rotatably sleeved on the outer wall of the vertical shaft 17, and the sleeve 2 2 is fixedly connected to the wire wheel 18, and the other end of the sleeve 22 penetrates the control box 8 and extends to the outside of the control box 8. The outer wall of the sleeve 22 located outside the control box 8 is threadedly connected with a first bolt 23; by setting a pull rope 19 and the wire wheel 18, etc., the pull rope 19 and the second plug 20 are pulled, the pull rope 19 is circled around the tree, and then the second plug 20 is inserted into the second jack 21, and then the sleeve 22 is rotated, and the rotating sleeve 22 and the wire wheel 18 are rotated, so that the wire wheel 18 tightens the pull rope 1 9, so that the pull rope 19 is tightly sleeved on the outer wall of the tree, and then the first bolt 23 is rotated so that one end of the first bolt 23 is tightly against the vertical shaft 17, so as to fix the vertical shaft 17 and the sleeve 22. When the outer wall of the tree grows, the outer wall of the growing tree will stretch the pull rope 19. When the tree stretches the pull rope 19, the pull rope 19 will pull the wire wheel 18 to reverse, and the reversed wire wheel 18 drives the sleeve 22 and the vertical shaft 17 to reverse, and the reversed vertical shaft 17 drives the vertical rod 15 to reverse, and the reversed vertical rod 15 can drive the first bolt 23 to rotate. The second gear 16 is reversed, and the reversed second gear 16 can drive the first gear 13 to reverse, and the reversed first gear 13 can drive the rotating rod 12 to reverse, and the reversed rotating rod 12 drives the worm 11 to reverse, and the reversed worm 11 drives the worm wheel 10 to reverse, and the reversed worm wheel 10 drives the rotating shaft 7 and the clamping roller 6 to rotate, so that the two rotating clamping rollers 6 will drive the binding belt 2 to gradually loosen, so that as the tree grows, the binding belt 2 gradually loosens, which can avoid the binding belt 2 from strangling the tree, which is more conducive to the growth of the tree.

[0032] Furthermore, the connecting member includes two third gears 24 arranged in the protective cover 9, the two third gears 24 are meshed with each other, and the two third gears 24 are respectively fixedly connected to the two rotating shafts 7; by setting two third gears 24, when one rotating shaft 7 rotates, the rotating rotating shaft 7 can drive the other rotating shaft 7 to reverse through the third gears 24.

[0033] Furthermore, a connector 25 is provided on one side of the binding belt 2, and a slot 26 is provided on one side wall of the connector 25, the binding belt 2 is arranged through the slot 26, a limiting hole 27 is provided on the lower end of the connector 25, and the limiting hole 27 is matched with the support tube 1, a second bolt 28 is threadedly connected to one side wall of the connector 25, and one end of the second bolt 28 passes through the connector 25 and abuts against the support tube 1; by setting the connector 25 for use in conjunction with the slot 26, etc., and then by setting the limiting hole 27 for use in conjunction with the second bolt 28, etc., the support tube 1 can be fixed to the lower end of the connector 25, and then when the binding belt 2 is stretched on the outer wall of the tree, one end of the support tube 1 can be fixed to the outer wall of the tree through the connector 25.

[0034] Furthermore, the inner wall of the support tube 1 is threadedly connected with a threaded column 29, and the lower end of the threaded column 29 is fixedly connected with a conical plug 30, and the outer wall of the threaded column 29 is threadedly sleeved with a nut 31, and one side wall of the nut 31 is against the support tube 1; by setting the nut 31 and using it in conjunction with the threaded column 29, the length of the support at one end of the support tube 1 can be adjusted. When adjusting, the nut 31 can be loosened and the threaded column 29 can be turned out for adjustment. By setting the conical plug 30, it is easy to insert it into the soil.

[0035] Furthermore, a cushion 32 is fixedly connected to the inner wall of the connector 25 ; by providing the cushion 32 , the softness of the side wall of the connector 25 can be ensured, and the side wall of the connector 25 can be prevented from strangling the tree.

[0036] Furthermore, a swivel 33 is fixedly sleeved on the outer wall of the sleeve 22, and an anti-slip pattern is provided on the outer wall of the swivel 33; by providing the swivel 33 and the anti-slip pattern, when the sleeve 22 is rotated, the swivel 33 can be rotated to rotate the sleeve 22.

[0037] In the present invention, before use, the nut 31 is unscrewed, and then the threaded column 29 is rotated to adjust the length of the threaded column 29 and the support tube 1, and then the binding belt 2 is wrapped around the tree to be supported, and the first plug 3 is inserted into the first jack 5, and then the vertical shaft 17 is rotated to make the vertical shaft 17 and the vertical rod 15 rotate, and the rotating vertical rod 15 can drive the second gear 16 to rotate, and the rotating second gear 16 can drive the first gear 13 to rotate, and the rotating first gear 13 can drive the rotating rod 12 to rotate, and the rotating rotating rod 12 drives the worm 11 to rotate, and the rotating The worm 11 drives the worm wheel 10 to rotate, and the rotating worm wheel 10 drives one of the rotating shafts 7 and the clamping roller 6 to rotate. When one of the rotating shafts 7 rotates, the rotating rotating shaft 7 drives the other rotating shaft 7 and the clamping roller 6 to rotate in the opposite direction through the third gear 24, so that the two rotating clamping rollers 6 will drive the binding belt 2, so that the binding belt 2 is tightened on the tree. The binding belt 2 tightened on the tree fixes the connector 25 on the outer wall of the tree, and then adjusts the support tube 1 and the threaded column 29 so that one end of the cone plug 30 is inserted into the soil, and then re-tightens the nut 31;

[0038] Then, pull the pull rope 19 and the second plug 20, and make the pull rope 19 circle around the tree. Then, insert the second plug 20 into the second plug hole 21, and then rotate the sleeve 22. The rotating sleeve 22 rotates the wire wheel 18, so that the wire wheel 18 tightens the pull rope 19, and then the pull rope 19 is tightly sleeved on the outer wall of the tree. Then, rotate the first bolt 23, so that one end of the first bolt 23 is tightly against the vertical shaft 17, so as to fix the vertical shaft 17 and the sleeve 22.

[0039] After the binding belt 2 tightly fixes the connector 25 to the outer wall of the tree, one end of the support tube 1 is also tightly fixed to the outer wall of the tree along with the connector 25. Since the worm gear 10 cannot drive the worm 11 to rotate, the connection between the support tube 1 and the tree will not loosen at will without external force, so that the support tube 1 can stably support the tree, avoiding the problem that the tree is easily shaken by the wind, which is conducive to the growth of the tree.

[0040] At the same time, when the outer wall of the tree grows, the outer wall of the grown tree will stretch the pull rope 19. When the tree stretches the pull rope 19, the pull rope 19 will pull the wire wheel 18 to reverse. The reversed wire wheel 18 drives the sleeve 22 and the vertical shaft 17 to reverse. The reversed vertical shaft 17 drives the vertical rod 15 to reverse. The reversed vertical rod 15 can drive the second gear 16 to reverse. The reversed second gear 16 can drive the first gear 13 to reverse. The reversed first gear 13 can drive the rotating rod 12 to reverse. The reversed rotating rod 12 drives the worm 11 to reverse. The reversed worm 11 drives the worm wheel 10 to reverse. The reversed worm wheel 10 drives the rotating shaft 7 and the clamping roller 6 to rotate, so that the two rotating clamping rollers 6 will drive the binding belt 2 to gradually relax. In this way, as the tree grows, the binding belt 2 gradually relaxes, which can prevent the binding belt 2 from strangling the tree, which is more conducive to the growth of the tree.

[0041] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plant fixing structure for landscaping, comprising a support tube (1) and a binding belt (2), characterized in that: One end of the binding belt (2) is fixedly connected to a first plug (3), and a shell (4) is provided on one side of the first plug (3). A first jack (5) matching the first plug (3) is provided on a side wall of the shell (4). The other end of the binding belt (2) passes through the shell (4). Both sides of the binding belt (2) located inside the shell (4) are provided with clamping rollers (6), and the clamping rollers (6) are arranged to clamp the binding belt (2). The inner wall of the clamping roller (6) is fixedly connected to a rotating shaft (7), and the rotating shaft (7) is rotatably connected to the inner wall of the shell (4). The upper surface of the shell (4) is fixedly connected to a control box (8), one end of one of the rotating shafts (7) passes through the shell (4) and extends to the inside of the control box (8), and a limit control component is arranged in the control box (8). The bottom of the shell (4) is fixedly connected to a protective cover (9), and a connecting piece is arranged in the protective cover (9); The limit control assembly comprises a worm wheel (10) arranged in a control box (8), and the worm wheel (10) is fixedly sleeved on the outer wall of the rotating shaft (7), a side wall of the worm wheel (10) is meshed with a worm (11), and both ends of the worm (11) are fixedly connected to a rotating rod (12), the rotating rod (12) is rotatably connected to the inner wall of the control box (8), and the outer wall of the rotating rod (12) is fixedly sleeved with a first gear (13), and the inner wall of the control box (8) is fixedly connected A fixing plate (14) is provided, and a side wall of one side of the fixing plate (14) is rotatably connected to a vertical rod (15), one end of the vertical rod (15) is fixedly connected to a second gear (16), and the second gear (16) is meshed with the first gear (13), one end of the vertical rod (15) is fixedly connected to a vertical shaft (17), and one end of the vertical shaft (17) passes through the control box (8) and extends to the outside of the control box (8), and the outer wall of the vertical shaft (17) is sleeved with a control component; The control assembly comprises a wire wheel (18) rotatably sleeved on the outer wall of the vertical shaft (17), and a pull rope (19) is wound around the outer wall of the wire wheel (18), one end of the pull rope (19) is fixed to the outer wall of the wire wheel (18), and the other end of the pull rope (19) passes through the control box (8) and extends to the outside of the control box (8), one end of the pull rope (19) located outside the control box (8) is fixedly connected to a second plug (20), a second jack (21) matching the second plug (20) is provided on a side wall of one side of the control box (8), a sleeve (22) is rotatably sleeved on the outer wall of the vertical shaft (17), and one end of the sleeve (22) is fixedly connected to the wire wheel (18), the other end of the sleeve (22) passes through the control box (8) and extends to the outside of the control box (8), and the outer wall of the sleeve (22) located outside the control box (8) is threadedly connected to a first bolt (23).

2. A plant fixing structure for landscaping according to claim 1, characterized in that: The connecting member comprises two third gears (24) arranged in the protective cover (9), the two third gears (24) mesh with each other, and the two third gears (24) are fixedly connected to the two rotating shafts (7) respectively.

3. A plant fixing structure for landscaping according to claim 1, characterized in that: A connector (25) is provided on one side of the binding belt (2), and a slot hole (26) is provided on one side wall of the connector (25), and the binding belt (2) is arranged through the slot hole (26). A limiting hole (27) is provided at the lower end of the connector (25), and the limiting hole (27) is matched with the support tube (1). A second bolt (28) is threadedly connected to one side wall of the connector (25), and one end of the second bolt (28) passes through the connector (25) and abuts against the support tube (1).

4. A plant fixing structure for landscaping according to claim 1, characterized in that: The inner wall of the support tube (1) is threadedly connected to a threaded column (29), and the lower end of the threaded column (29) is fixedly connected to a cone plug (30). The outer wall of the threaded column (29) is threadedly sleeved with a nut (31), and one side wall of the nut (31) abuts against the support tube (1).

5. The plant fixing structure for landscaping according to claim 3, characterized in that: A soft pad (32) is fixedly connected to the inner wall of the connecting head (25).

6. A plant fixing structure for landscaping according to claim 1, characterized in that: A rotating ring (33) is fixedly sleeved on the outer wall of the sleeve (22), and anti-slip grooves are provided on the outer wall of the rotating ring (33).

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