Mobile full-spectrum plant light supplementing device

Abstract

The utility model relates to the technical field of light supplementing devices, in particular to a movable full-spectrum plant light supplementing device which comprises a base, four braking universal wheels arranged in a matrix mode are arranged at the bottom of the base, a lifting assembly is arranged at the top of the base and comprises a rectangular vertical pipe, and a rectangular vertical rod capable of being adjusted up and down is arranged in the rectangular vertical pipe. A length adjusting assembly is arranged at the position, close to the top, of the left side of the rectangular vertical rod, an angle adjusting assembly is arranged at the left end of the length adjusting assembly, and a full-spectrum light supplementing lamp is arranged on the angle adjusting assembly. According to the movable full-spectrum plant light supplementing device, the height of the full-spectrum light supplementing lamp is adjusted through the lifting assembly, so that the distance between the full-spectrum light supplementing lamp and a plant to be subjected to light supplementing is suitable for plant growth, the position of the full-spectrum light supplementing lamp is adjusted through the length adjusting assembly, and the full-spectrum light supplementing lamp has a large adjusting range through the angle adjusting assembly; therefore, the illumination angle requirements of different plants are met.

Description

Technical Field

[0001] The utility model relates to the technical field of supplementary lighting devices, in particular to a mobile full-spectrum plant supplementary lighting device. Background Art

[0002] Plants need light for growth and development. Light not only provides energy, but also affects the morphology, physiology and metabolism of plants. Different plants have different requirements for light. Some plants need strong light, some need weak light, some need the full spectrum, and some need light of a specific wavelength. Therefore, in order to meet the light needs of plants, people often use artificial light sources for supplementary lighting in greenhouses or other plant growth environments.

[0003] The patent with publication number CN216243658U discloses a high-power full-spectrum indoor vegetable and fruit plant fill light, including a base, a lifting and adjusting component is fixed on the top surface of the base, a connecting plate is connected to the top of the lifting and adjusting component, a rotating rod is fixed on the top of the connecting plate, a self-constrained top plate is rotatably arranged on the top of the rotating rod, and mounting seats arranged in a matrix are installed on the top surfaces of the connecting plate and the top plate, a self-constrained clamping seat is rotatably arranged in the mounting seat, a clamping sleeve is penetrated through the clamping seat, and a fill light is clamped in the clamping sleeve, so as to facilitate the adjustment of the overall use height, and the fill light is convenient to adjust its use angle, so that the fill lights distributed in the upper and lower layers have the effect of compensating each other, and at the same time, the fill light on the upper layer also has the rotation adjustment function to make the upper and lower layers better perform the fill light effect, so as to better meet the actual use needs.

[0004] The above-mentioned prior art has multiple rollers at the bottom of the base to facilitate the movement of the plant fill light. The irradiation angle of the fill light can be adjusted by cooperating with the mounting seat, the clamping seat and the clamping sleeve. However, the fill light can only be adjusted at an inclination angle, resulting in the fill light only being able to illuminate the plants horizontally or obliquely from the side, while some plants require vertical fill light from the top. This results in the plant fill light having usage limitations and cannot meet the fill light irradiation needs of different plants. In view of this, we propose a mobile full-spectrum plant fill light device. Utility Model Content

[0005] The purpose of the utility model is to provide a mobile full-spectrum plant supplementary lighting device to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A mobile full-spectrum plant fill-light device comprises a base, wherein the bottom of the base is provided with four brakeable universal wheels arranged in a matrix, so that the full-spectrum plant fill-light device can be moved and fixed in position after being moved, so as to facilitate the staff to move the position of the full-spectrum plant fill-light device, and a lifting component is provided at the top of the base and near the middle of the right edge, wherein the lifting component comprises a rectangular vertical tube fixedly connected to the top of the base, wherein a rectangular vertical rod adjustable up and down is provided in the rectangular vertical tube, and a length adjustment component is provided at the left side of the rectangular vertical rod and near the top, and the height of the length adjustment component is adjusted by the lifting component, thereby adjusting the height of the full-spectrum fill-light lamp, so that the distance between the full-spectrum fill-light lamp and the plant to be fill-lighted is suitable for plant growth;

[0008] The length adjustment component includes a rectangular horizontal tube fixedly connected to the left side of the rectangular vertical rod, a rectangular horizontal rod that can be adjusted left and right is arranged in the rectangular horizontal tube, and an angle adjustment component is arranged at the left end of the rectangular horizontal rod, and the distance between the angle adjustment component and the rectangular vertical rod is adjusted by the length adjustment component, so that the position of the full-spectrum fill light can be adjusted to ensure that the full-spectrum fill light can be located directly above the plant to be fill-lit when needed, so as to fill light the top of the plant;

[0009] The angle adjustment component includes a U-shaped seat fixedly connected to the left end of the rectangular cross bar, a rotating block is rotatably connected between the front and rear sides of the inner wall of the U-shaped seat, a full-spectrum fill light is provided at the end of the rotating block, the front end of the rotating block shaft passes through the front side of the inner wall of the U-shaped seat and is coaxially connected with a worm gear, a U-shaped plate is provided on the front side of the U-shaped seat and close to the right end, a worm screw meshing with the worm gear is rotatably connected between the upper and lower sides of the inner wall of the U-shaped plate, the worm gear is driven to rotate by the worm screw, thereby rotating the rotating block, and the rotating block drives the full-spectrum fill light to rotate, so that the inclination angle of the full-spectrum fill light can be adjusted, and the full-spectrum fill light has a large adjustment range, which can make the full-spectrum fill light illuminate the plants horizontally at the side of the plants, and can also make the full-spectrum fill light illuminate the plants vertically at the top of the plants.

[0010] Preferably, a first partition is provided in the rectangular vertical tube and near the bottom, and a second partition is provided in the rectangular vertical tube and near the top of the first partition. A first rotating shaft is rotatably connected between the first partition and the second partition, and the top of the first rotating shaft passes through the bottom of the second partition and is coaxially connected with a screw rod. The rectangular vertical rod is threadedly connected to the outer wall of the screw rod, and the screw rod is driven to rotate by the first rotating shaft, so that the screw rod drives the rectangular vertical rod to move up and down. This adjustment method can make the distance between the full-spectrum fill light and the plant more accurate after adjustment, which is conducive to plant growth.

[0011] Preferably, a driven bevel gear is provided in the middle and upper part of the outer wall of the first rotating shaft, and a second rotating shaft is rotatably connected to the right side of the rectangular vertical tube and close to the bottom. The left end of the second rotating shaft passes through the right side of the rectangular vertical tube and is coaxially connected to a driving bevel gear that meshes with the driven bevel gear for transmission. A rocker is provided at the right end of the second rotating shaft to facilitate the staff to rotate the second rotating shaft. The second rotating shaft drives the driving bevel gear to rotate, so that the driving bevel gear drives the driven bevel gear to rotate, and the driven bevel gear drives the first rotating shaft to rotate.

[0012] Preferably, a first fastening bolt is threadedly connected to the top of the rectangular cross tube and near the left end, and the threaded end of the first fastening bolt passes through the top of the rectangular cross tube and abuts against the top of the rectangular cross bar, and the position of the rectangular cross bar and the rectangular cross tube are fixed by the first fastening bolt.

[0013] Preferably, the top end of the worm shaft passes through the top of the inner wall of the U-shaped plate and is fixedly connected with a knob, and the outer wall of the knob is provided with anti-slip grooves to facilitate the staff to rotate the worm.

[0014] Preferably, an auxiliary support assembly is provided at the left end of the bottom of the rectangular horizontal tube. When the rectangular horizontal bar moves outward for a long distance, the auxiliary support assembly supports the left end of the rectangular horizontal tube, thereby preventing the plant lighting device from tipping to the left. The auxiliary support assembly includes a circular vertical tube fixedly connected to the bottom of the rectangular horizontal tube. A circular support rod that can be adjusted up and down is provided in the circular vertical tube. When the lifting assembly is adjusted, the position of the circular support rod also needs to be adjusted to ensure that the rubber block is against the ground. A rubber block is provided at the bottom end of the circular support rod to increase friction and keep the auxiliary support assembly in a vertical state.

[0015] Preferably, a second fastening bolt is threadedly connected to the outer wall of the circular vertical tube near the bottom end, and the threaded end of the second fastening bolt passes through the outer wall of the circular vertical tube and abuts against the outer wall of the circular support rod, and the position of the circular support rod and the circular vertical tube is fixed by the second fastening bolt.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The mobile full-spectrum plant fill light device has four brakeable universal wheels arranged in a matrix at the bottom of the base, so that the full-spectrum plant fill light device can be moved and the position can be fixed after moving, so that it is convenient for the staff to move the position of the full-spectrum plant fill light device.

[0018] 2. The mobile full-spectrum plant fill light device adjusts the height of the length adjustment component through the lifting component, thereby adjusting the height of the full-spectrum fill light, so that the distance between the full-spectrum fill light and the plant to be filled light is suitable for plant growth, and the distance between the angle adjustment component and the rectangular vertical rod is adjusted through the length adjustment component, so that the position of the full-spectrum fill light can be adjusted to ensure that the full-spectrum fill light can be located directly above the plant to be filled light when needed, so as to fill light the top of the plant.

[0019] 3. The mobile full-spectrum plant fill light device drives the worm wheel to rotate through the worm gear, thereby rotating the rotating block, and the rotating block drives the full-spectrum fill light to rotate, so that the inclination angle of the full-spectrum fill light can be adjusted, and the full-spectrum fill light has a large adjustment range, which can make the full-spectrum fill light illuminate the plant horizontally on the side of the plant, and can also make the full-spectrum fill light illuminate the plant vertically on the top of the plant. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the structure of the lifting component in the utility model;

[0022] Figure 3 For this utility model Figure 2 A schematic diagram of the structure enlargement at the center A;

[0023] Figure 4 It is a partial structural schematic diagram of the utility model;

[0024] Figure 5 It is a schematic diagram of the structure of the auxiliary support assembly in the utility model.

[0025] In the figure: 1. base; 2. lifting assembly; 20. rectangular vertical tube; 200. first partition; 201. second partition; 21. rectangular vertical rod; 22. screw; 23. first rotating shaft; 24. driven bevel gear; 25. second rotating shaft; 26. driving bevel gear; 27. rocker; 3. length adjustment assembly; 30. rectangular horizontal tube; 31. rectangular horizontal rod; 32. first fastening bolt; 4. angle adjustment assembly; 40. U-shaped seat; 41. rotating block; 42. worm gear; 43. U-shaped plate; 44. worm; 45. knob; 5. full-spectrum fill light; 6. brakeable universal wheel; 7. auxiliary support assembly; 70. circular vertical tube; 71. circular support rod; 72. second fastening bolt; 73. rubber block. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] See also Figure 1-Figure 5 , the utility model provides a technical solution:

[0029] A mobile full-spectrum plant fill-light device comprises a base 1. The bottom of the base 1 is provided with four braked universal wheels 6 arranged in a matrix, so that the full-spectrum plant fill-light device can be moved and fixed in position after being moved, so as to facilitate the staff to move the position of the full-spectrum plant fill-light device. A lifting component 2 is provided at the top of the base 1 and near the middle of the right edge. The lifting component 2 comprises a rectangular vertical tube 20 fixedly connected to the top of the base 1. A rectangular vertical rod 21 adjustable up and down is provided in the rectangular vertical tube 20. A length adjustment component 3 is provided on the left side of the rectangular vertical rod 21 and near the top. The height of the length adjustment component 3 is adjusted by the lifting component 2, thereby adjusting the height of the full-spectrum fill-light lamp 5, so that the distance between the full-spectrum fill-light lamp 5 and the plant to be fill-lighted is suitable for plant growth.

[0030] The length adjustment component 3 includes a rectangular transverse tube 30 fixedly connected to the left side of the rectangular vertical rod 21, a rectangular transverse rod 31 that can be adjusted left and right is arranged in the rectangular transverse tube 30, and an angle adjustment component 4 is arranged at the left end of the rectangular transverse rod 31. The distance between the angle adjustment component 4 and the rectangular vertical rod 21 is adjusted by the length adjustment component 3, so that the position of the full-spectrum fill light 5 can be adjusted to ensure that the full-spectrum fill light 5 can be located directly above the plant to be fill-lit when necessary, so as to fill light the top of the plant;

[0031] The angle adjustment component 4 includes a U-shaped seat 40 fixedly connected to the left end of the rectangular cross bar 31, a rotating block 41 is rotatably connected between the front and rear sides of the inner wall of the U-shaped seat 40, a full-spectrum fill light 5 is provided at the end of the rotating block 41, the front end of the rotating shaft of the rotating block 41 passes through the front side of the inner wall of the U-shaped seat 40 and is coaxially connected with a worm gear 42, a U-shaped plate 43 is provided on the front side of the U-shaped seat 40 and close to the right end, a worm 44 meshing with the worm gear 42 is rotatably connected between the upper and lower sides of the inner wall of the U-shaped plate 43, the worm gear 42 is driven to rotate by the worm gear 44, thereby rotating the rotating block 41, and the rotating block 41 drives the full-spectrum fill light 5 to rotate, so that the inclination angle of the full-spectrum fill light 5 can be adjusted, and the full-spectrum fill light 5 has a large adjustment range, which can make the full-spectrum fill light 5 illuminate the plants horizontally at the side of the plants, and can also make the full-spectrum fill light 5 illuminate the plants vertically at the top of the plants.

[0032] In this embodiment, a first partition 200 is provided in the rectangular vertical tube 20 and near the bottom, and a second partition 201 is provided in the rectangular vertical tube 20 and near the top of the first partition 200. A first rotating shaft 23 is rotatably connected between the first partition 200 and the second partition 201. The top end of the first rotating shaft 23 passes through the bottom of the second partition 201 and is coaxially connected with a screw rod 22. The rectangular vertical rod 21 is threadedly connected to the outer wall of the screw rod 22. The screw rod 22 is driven to rotate by the first rotating shaft 23, so that the screw rod 22 drives the rectangular vertical rod 21 to move up and down. This adjustment method can make the distance between the full-spectrum fill light 5 and the plant more accurate after adjustment, which is beneficial to plant growth.

[0033] Specifically, a driven bevel gear 24 is provided in the middle and upper part of the outer wall of the first rotating shaft 23, and a second rotating shaft 25 is rotatably connected to the right side of the rectangular vertical tube 20 and close to the bottom. The left end of the second rotating shaft 25 passes through the right side of the rectangular vertical tube 20 and is coaxially connected to a driving bevel gear 26 that meshes with the driven bevel gear 24 for transmission. A rocker 27 is provided at the right end of the second rotating shaft 25 to facilitate the staff to rotate the second rotating shaft 25. The second rotating shaft 25 drives the driving bevel gear 26 to rotate, so that the driving bevel gear 26 drives the driven bevel gear 24 to rotate, and the driven bevel gear 24 drives the first rotating shaft 23 to rotate.

[0034] Furthermore, a first fastening bolt 32 is threadedly connected to the top of the rectangular cross tube 30 and near the left end. The threaded end of the first fastening bolt 32 passes through the top of the rectangular cross tube 30 and abuts against the top of the rectangular cross bar 31. The first fastening bolt 32 fixes the position of the rectangular cross bar 31 and the rectangular cross tube 30.

[0035] Furthermore, the top end of the rotating shaft of the worm 44 passes through the top of the inner wall of the U-shaped plate 43 and is fixedly connected with a knob 45 . The outer wall of the knob 45 is provided with anti-slip grooves to facilitate the staff to rotate the worm 44 .

[0036] Furthermore, an auxiliary support assembly 7 is provided at the left end of the bottom of the rectangular horizontal tube 30. When the rectangular cross bar 31 moves outward for a long distance, the auxiliary support assembly 7 supports the left end of the rectangular horizontal tube 30, so as to prevent the plant lighting device from tipping to the left. The auxiliary support assembly 7 includes a circular vertical tube 70 fixedly connected to the bottom of the rectangular horizontal tube 30. A circular support rod 71 which can be adjusted up and down is provided in the circular vertical tube 70. When the lifting assembly 2 is adjusted, the position of the circular support rod 71 also needs to be adjusted to ensure that the rubber block 73 is against the ground. A rubber block 73 is provided at the bottom end of the circular support rod 71 to increase friction and keep the auxiliary support assembly 7 in a vertical state.

[0037] Furthermore, a second fastening bolt 72 is threadedly connected to the outer wall of the circular vertical tube 70 near the bottom end. The threaded end of the second fastening bolt 72 passes through the outer wall of the circular vertical tube 70 and abuts against the outer wall of the circular support rod 71. The second fastening bolt 72 fixes the position of the circular support rod 71 and the circular vertical tube 70.

[0038] When the mobile full-spectrum plant fill-in light device of the present embodiment is in use, the staff moves the full-spectrum plant fill-in light device to the desired position, and then stops the four brakeable universal wheels 6 to prevent the full-spectrum plant fill-in light device from shifting when in use. Then the staff adjusts the irradiation angle of the full-spectrum fill-in light 5 according to the illumination angle requirements of the plants. When the plants need the full-spectrum fill-in light 5 to illuminate from the side, the staff rotates the rocker 27 to drive the second rotating shaft 25 to rotate, and the second rotating shaft 25 drives the active bevel gear 26 to rotate, so that the active bevel gear 26 drives the driven bevel gear 24 to rotate, thereby The driven bevel gear 24 drives the first rotating shaft 23 to rotate, and the first rotating shaft 23 drives the screw rod 22 to rotate, so that the screw rod 22 drives the rectangular vertical rod 21 to move upward to a suitable height, and then the staff loosens the second fastening bolt 72 to move the circular support rod 71 downward until the rubber block 73 contacts the ground and then tightens the second fastening bolt 72. After that, the staff turns the knob 45, and the knob 45 drives the worm 44 to rotate, and the worm 44 drives the worm wheel 42 to rotate, so that the rotating block 41 rotates, and the rotating block 41 drives the full-spectrum fill light 5 to rotate, so that the inclination angle of the full-spectrum fill light 5 can be adjusted. Until the inclination angle of the full-spectrum fill light 5 is suitable for the lighting needs of the plants; when the plants need the full-spectrum fill light 5 to fill light at the top, the staff rotates the rocker 27 to make the rocker 27 drive the second rotating shaft 25 to rotate, and the second rotating shaft 25 drives the active bevel gear 26 to rotate, so that the active bevel gear 26 drives the driven bevel gear 24 to rotate, so that the driven bevel gear 24 drives the first rotating shaft 23 to rotate, and the first rotating shaft 23 drives the screw rod 22 to rotate, so that the screw rod 22 drives the rectangular vertical rod 21 to move upward to a suitable height, and then the staff loosens the second fastening bolt 72 to move the circular support rod 71 downward , until the rubber block 73 contacts the ground, tighten the second fastening bolt 72, then the staff turns the knob 45, the knob 45 drives the worm 44 to rotate, the worm 44 drives the worm wheel 42 to rotate, so that the rotating block 41 rotates, and the rotating block 41 drives the full-spectrum fill light 5 to rotate, so that the full-spectrum fill light 5 rotates to a horizontal state, and then the staff loosens the first fastening bolt 32 and moves the rectangular cross bar 31 outward until the full-spectrum fill light 5 moves to the top of the plant, and then tightens the first fastening bolt 32 to fix the position of the rectangular cross bar 31 to prevent the full-spectrum fill light 5 from shifting during use.

[0039] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A mobile full-spectrum plant supplementary lighting device, comprising a base (1), characterized in that: The bottom of the base (1) is provided with four brakeable universal wheels (6) arranged in a matrix. A lifting assembly (2) is provided at the top of the base (1) and near the middle of the right edge. The lifting assembly (2) comprises a rectangular vertical tube (20) fixedly connected to the top of the base (1). A rectangular vertical rod (21) that can be adjusted up and down is provided in the rectangular vertical tube (20). A length adjustment assembly (3) is provided on the left side of the rectangular vertical rod (21) and near the top. The length adjustment assembly (3) comprises a rectangular horizontal tube (30) fixedly connected to the left side of the rectangular vertical rod (21). A rectangular horizontal rod (31) that can be adjusted left and right is provided in the rectangular horizontal tube (30). The left end of the cross bar (31) is provided with an angle adjustment component (4), the angle adjustment component (4) comprising a U-shaped seat (40) fixedly connected to the left end of the rectangular cross bar (31), a rotating block (41) rotatably connected between the front and rear sides of the inner wall of the U-shaped seat (40), a full-spectrum fill light (5) being provided at the end of the rotating block (41), a front end of a rotating shaft of the rotating block (41) passing through the front side of the inner wall of the U-shaped seat (40) and being coaxially connected with a worm gear (42), a U-shaped plate (43) being provided at the front side of the U-shaped seat (40) and close to the right end, a worm gear (44) being rotatably connected between the upper and lower sides of the inner wall of the U-shaped plate (43) and meshing with the worm gear (42) for transmission.

2. The mobile full-spectrum plant supplementary lighting device according to claim 1, characterized in that: A first partition (200) is provided in the rectangular vertical tube (20) near the bottom, and a second partition (201) is provided in the rectangular vertical tube (20) near the top of the first partition (200). A first rotating shaft (23) is rotatably connected between the first partition (200) and the second partition (201). The top end of the first rotating shaft (23) passes through the bottom of the second partition (201) and is coaxially connected to a screw rod (22). The rectangular vertical rod (21) is threadedly connected to the outer wall of the screw rod (22).

3. The mobile full-spectrum plant supplementary lighting device according to claim 2, characterized in that: A driven bevel gear (24) is provided at the middle upper portion of the outer wall of the first rotating shaft (23); a second rotating shaft (25) is rotatably connected to the right side of the rectangular vertical tube (20) and close to the bottom; the left end of the second rotating shaft (25) passes through the right side of the rectangular vertical tube (20) and is coaxially connected to a driving bevel gear (26) meshing with the driven bevel gear (24); and a rocker (27) is provided at the right end of the second rotating shaft (25).

4. The mobile full-spectrum plant supplementary lighting device according to claim 1, characterized in that: A first fastening bolt (32) is threadedly connected at the top of the rectangular transverse tube (30) and close to the left end, and the threaded end of the first fastening bolt (32) passes through the top of the rectangular transverse tube (30) and abuts against the top of the rectangular cross bar (31).

5. The mobile full-spectrum plant supplementary lighting device according to claim 1, characterized in that: The top end of the rotating shaft of the worm (44) passes through the top of the inner wall of the U-shaped plate (43) and is fixedly connected with a knob (45), and the outer wall of the knob (45) is provided with anti-slip grooves.

6. The mobile full-spectrum plant supplementary lighting device according to claim 1, characterized in that: An auxiliary support assembly (7) is provided at the left end of the bottom of the rectangular transverse tube (30), and the auxiliary support assembly (7) comprises a circular vertical tube (70) fixedly connected to the bottom of the rectangular transverse tube (30), a circular support rod (71) adjustable up and down is provided in the circular vertical tube (70), and a rubber block (73) is provided at the bottom end of the circular support rod (71).

7. The mobile full-spectrum plant supplementary lighting device according to claim 6, characterized in that: A second fastening bolt (72) is threadedly connected to the outer wall of the circular vertical tube (70) near the bottom end, and the threaded end of the second fastening bolt (72) passes through the outer wall of the circular vertical tube (70) and abuts against the outer wall of the circular support rod (71).

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