Right-angle connecting piece for connecting flexible photovoltaic panels
By designing a right-angle connector for connecting flexible photovoltaic panels, using the mutual cooperation of multiple components, the problem of easy bolts in the prior art is solved, and the stability and resistance to the connection between flexible photovoltaic panels and steel cables is achieved. Improved corrosion performance.
Patent Information
- Application Number
- CN202411701481.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2044-11-26
AI Technical Summary
In the prior art, flexible photovoltaic panels and steel cables are prone to shake under the influence of weather changes, resulting in loosening of bolts and nuts in right-angle connectors, affecting the stability of the connection.
A right-angle connector for connecting a flexible photovoltaic panel is designed, and the bolts are enhanced by the mutual cooperation of multiple components, including a first bolt, a connecting column, a fixing ring, a connecting fixing assembly, a fixing adjustment assembly and a snap-fit connection assembly, which enhances the bolts. and the fixation of the connecting columns to reduce loosening caused by weather changes.
It effectively prevents the looseness of the bolts due to weather reasons, improves the stability of the connection between the flexible photovoltaic panel and the steel cable, reduces the difficulty of the photovoltaic panel moving on the steel cable, and avoids the wear of the connecting column and the steel cable, extends the resistance. Corrosion performance.
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Figure CN119467497A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of photovoltaic support accessories, and in particular to a right-angle connector for connecting flexible photovoltaic panels. Background Art
[0002] The right-angle connector is generally composed of an "L"-shaped right-angle connecting plate and bolts, while the right-angle connector used to connect the flexible photovoltaic panel has an additional "U"-shaped connecting column. During installation, the right-angle connecting plate is first connected to the flexible photovoltaic panel by bolts, and then the flexible photovoltaic panel is placed on the steel cable. The connector is then inserted into the right-angle connecting plate and fixed with a nut, so that the steel cable passes through the ring formed by the right-angle connecting plate and the connector, thereby completing the connection between the steel cable and the flexible photovoltaic panel.
[0003] In the prior art, flexible photovoltaic panels and steel cables will be affected by the weather and cause shaking. When shaking, the vibration will be transmitted to the right-angle connector, which may easily cause the bolts and nuts in the connector to loosen. In order to prevent the right-angle connector from loosening, a right-angle connector for connecting flexible photovoltaic panels is proposed herein. Summary of the invention
[0004] The present invention is to solve the problem that bolts are easily loosened in the prior art, and proposes a right-angle connector for connecting flexible photovoltaic panels.
[0005] In order to achieve the above object, the present invention adopts the following technical solutions:
[0006] A right-angle connector for connecting a flexible photovoltaic panel, comprising a right-angle connecting plate, and also comprising: a first bolt threadedly connected to the top of the right-angle connecting plate, the first bolt being used for threaded fixation with the flexible photovoltaic panel; a connecting column plugged into the right-angle connecting plate, the connecting column and the right-angle connecting plate forming a ring, and a steel cable of a flexible photovoltaic bracket passing through the ring; a fixing ring sleeved on the first bolt and clamped with the connecting column; a connecting and fixing assembly for fixing the connecting column; a fixing adjustment assembly arranged on the connecting column for fixing the steel cable; when the fixing adjustment assembly increases the friction resistance between the ring and the steel cable, the fixing adjustment assembly drives the connecting and fixing assembly to clamp the connecting column; a clamping connection assembly arranged on the side plate of the right-angle connecting plate, and when the fixing adjustment assembly drives the connecting and fixing assembly to clamp the connecting column, the clamping connection assembly clamps the fixing adjustment assembly.
[0007] As a preferred embodiment of the present invention: the right-angle connecting plate is an inverted "L"-shaped plate composed of a horizontal plate on the top and a vertical plate on the side wall, a through groove is provided on the vertical plate, mounting holes are provided above and below the through groove, and the mounting holes are connected to the through groove, the connecting column is inserted into the mounting hole, and the connecting and fixing assembly is arranged in the through groove.
[0008] As a preferred embodiment of the present invention: the connecting column is "U"-shaped, the two straight rods of the connecting column are inserted into the mounting hole, and the arc rod of the connecting column and the vertical plate form a ring.
[0009] As a preferred embodiment of the present invention: a pulley is rotatably connected to the connecting column, and when the connecting column is plugged into the right-angle connecting plate, the bottom of the pulley is in contact with the steel cable.
[0010] As a preferred embodiment of the present invention: the connecting and fixing component includes a rotating shaft rotatably connected in the through-groove, a second adjusting plate is fixedly connected to the rotating shaft, a second connecting arm is rotatably connected to the second adjusting plate, a clamping block is rotatably connected to the second connecting arm, the clamping block is slidably connected in the through-groove, a through hole is provided on the connecting column, and when the connecting and fixing component fixes the connecting column, the clamping block is inserted into the through hole.
[0011] As a preferred embodiment of the present invention: a mounting block is fixedly connected to the connecting column, a second threaded hole is provided on the mounting block, a second bolt is threadedly connected to the second threaded hole, a knob is fixedly connected to the bottom of the second bolt, the top of the second bolt extends into the ring and is rotatably connected to a clamping block, an arc groove is provided on the clamping block, and an anti-slip layer is provided in the arc groove.
[0012] As a preferred embodiment of the present invention: a mounting plate is fixedly connected to the rotating shaft, a first adjusting plate is fixedly connected to the mounting plate, a first connecting arm is rotatably connected to the first adjusting plate, and the first connecting arm is rotatably connected to the side wall of the clamping block.
[0013] As a preferred embodiment of the present invention: the snap-fit connection assembly includes a sliding rod, a sliding hole is provided on the vertical plate of the right-angle connecting plate, the sliding rod is slidably connected in the sliding hole, one end of the sliding rod facing the second bolt is fixedly connected with a baffle, a spring is sleeved on the sliding rod, the two ends of the spring are respectively fixedly connected to the baffle and the right-angle connecting plate, the second bolt is provided with a socket, when the fixed adjustment assembly is fixed to the steel cable, the sliding rod is inserted into the socket, and the other end of the sliding rod is fixedly connected with a handle.
[0014] As a preferred embodiment of the present invention: a first threaded hole is opened on the top of the right-angle connecting plate, the first bolt is threadedly connected in the first threaded hole, a first gasket and a second gasket are sleeved on the first bolt, the first gasket is arranged between the photovoltaic panel and the right-angle connecting plate, and the second gasket is arranged between the nut of the first bolt and the right-angle connecting plate.
[0015] As a preferred embodiment of the present invention: a hexagonal hole is provided on the fixing ring, the hexagonal hole is coupled to the hexagonal screw head of the first bolt, a connecting block is fixedly connected to the side wall of the fixing ring, a plug rod is fixedly connected to the connecting block, a slot is provided on the connecting column, and the plug rod is used to be inserted into the slot.
[0016] Compared with the prior art, the present invention provides a right-angle connector for connecting flexible photovoltaic panels, which has the following beneficial effects:
[0017] 1. The right-angle connector for connecting the flexible photovoltaic panel, through the cooperation of multiple components, fixes the first bolt and the second bolt while fixing the photovoltaic panel on the steel cable, preventing the bolts from loosening the connection between the photovoltaic panel and the steel cable due to weather reasons;
[0018] 2. The right-angle connector for connecting the flexible photovoltaic panel can reduce the difficulty of moving the photovoltaic panel on the steel cable by setting the pulley, and at the same time, prevent the wear of the connecting column and the steel cable, and avoid damage to the anti-corrosion coating on the surface of the connecting column and the steel cable, thereby avoiding the reduction of the corrosion resistance of the steel cable and the connecting column;
[0019] 3. The right-angle connector for connecting the flexible photovoltaic panel fixes the connecting column by driving the clamping block to be inserted into the through hole during the action of clamping the steel cable. There is no need to fix the nut on the connecting column, thereby improving the installation efficiency of the photovoltaic panel on site. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 A schematic diagram of the three-dimensional structure of a right-angle connector for connecting flexible photovoltaic panels proposed by the present invention;
[0021] Figure 2 A three-dimensional cross-sectional view of a right-angle connector for connecting a flexible photovoltaic panel proposed by the present invention;
[0022] Figure 3 A schematic structural diagram of a right-angle connecting plate of a right-angle connecting piece for connecting flexible photovoltaic panels proposed by the present invention;
[0023] Figure 4 A cross-sectional view of a right-angle connecting plate of a right-angle connecting piece for connecting flexible photovoltaic panels proposed by the present invention;
[0024] Figure 5 A schematic diagram of the structure of a right-angle connector connecting column for connecting flexible photovoltaic panels proposed by the present invention;
[0025] Figure 6 A schematic diagram of a structural diagram of a right-angle connector fixing and adjusting assembly for connecting a flexible photovoltaic panel proposed by the present invention Figure 1 ;
[0026] Figure 7 A schematic diagram of a structural diagram of a right-angle connector fixing and adjusting assembly for connecting a flexible photovoltaic panel proposed by the present invention Figure 2 ;
[0027] Figure 8 This is a schematic structural diagram of a right-angle connector fixing ring for connecting flexible photovoltaic panels proposed by the present invention.
[0028] In the figure: 1. right-angle connecting plate; 11. first threaded hole; 12. mounting hole; 13. sliding hole; 14. through-groove; 2. first bolt; 21. first gasket; 22. second gasket; 3. connecting column; 31. through-hole; 32. slot; 33. mounting block; 34. second threaded hole; 35. pulley; 4. second bolt; 41. knob; 42. clamping block; 43. arc groove; 44. anti-skid layer; 45. socket; 5. rotating shaft; 51. mounting plate; 52. first adjusting plate; 53. first connecting arm; 6. second adjusting plate; 61. second connecting arm; 62. clamping block; 7. fixing ring; 71. hexagon socket hole; 72. connecting block; 73. plug rod; 8. sliding rod; 81. baffle; 82. spring; 83. handle. DETAILED DESCRIPTION
[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0030] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0031] Example: Refer to Figure 1-Figure 8 , Example: Refer to Figure 1-Figure 8A right-angle connector for connecting a flexible photovoltaic panel, comprising a right-angle connecting plate 1, the right-angle connecting plate 1 is an inverted "L"-shaped plate composed of a horizontal plate on the top and a vertical plate on the side wall, a through groove 14 is opened on the vertical plate, and mounting holes 12 are opened above and below the through groove 14, and the mounting hole 12 is connected to the through groove 14, and also includes: a first bolt 2 threadedly connected to the top of the right-angle connecting plate 1, the first bolt 2 is used to be threadedly fixed with the flexible photovoltaic panel; a connecting column 3, the connecting column 3 is "U"-shaped, two straight rods of the connecting column 3 are inserted into the mounting hole 12, the arc rod of the connecting column 3 and the vertical plate form a collar, and the connecting column 3 and The right-angle connecting plate 1 is formed into a ring, and the steel cable of the flexible photovoltaic bracket passes through the ring; the fixing ring 7 is sleeved on the first bolt 2 and clamped with the connecting column 3; the connecting fixing component is arranged in the through groove 14, and is used to fix the connecting column 3; the fixing adjustment component is arranged on the connecting column 3, and is used to fix the steel cable; when the fixing adjustment component increases the friction resistance between the ring and the steel cable, the fixing adjustment component drives the connecting fixing component to clamp the connecting column 3; the clamping connection component is arranged on the side plate of the right-angle connecting plate 1, and when the fixing adjustment component drives the connecting fixing component to clamp the connecting column 3, the clamping connection component clamps the fixing adjustment component.
[0032] When in use, first connect the right-angle connecting plate 1 to the bottom of the steel cable through the first bolt 2, then stick the vertical plate of the right-angle connecting plate 1 to the steel cable, then insert the connecting column 3 into the mounting hole 12, then put the fixing ring 7 on the hexagonal nut of the first bolt 2, and then push the connecting column 3 to engage and fix it with the fixing ring 7. When it is necessary to fix the flexible photovoltaic panel, the output end of the fixed adjustment component rises and cooperates with the connecting column 3 to clamp the steel cable to prevent the flexible photovoltaic panel from sliding. When the fixed adjustment component rises, the fixed adjustment component drives the connecting fixing component to be plugged into the connecting column 3 to fix the connecting column 3, and then the fixed adjustment component is fixed by the engaging connecting component. In summary, through the cooperation of multiple components, the fixation of the photovoltaic panel and the steel cable is completed to prevent the first bolt 2 from loosening due to weather.
[0033] Reference Figure 1 A pulley 35 is rotatably connected to the connecting column 3. When the connecting column 3 is plugged into the right-angle connecting plate 1, the bottom of the pulley 35 is in contact with the steel cable. When in use, the rolling friction between the connecting column 3 and the steel cable is converted into sliding friction through the pulley 35. When the photovoltaic panel needs to slide on the steel cable, the output end of the fixed adjustment component is lowered, and the steel cable is released so that the photovoltaic panel can move on the steel cable. The setting of the pulley 35 can reduce the difficulty of moving the photovoltaic panel on the steel cable. At the same time, wear on the connecting column 3 and the steel cable is prevented, and damage to the anti-corrosion coating on the surface of the connecting column 3 and the steel cable is avoided, thereby avoiding a reduction in the corrosion resistance of the steel cable and the connecting column 3.
[0034] Reference Figure 2The connecting and fixing assembly includes a rotating shaft 5 rotatably connected in the through groove 14, a second adjusting plate 6 is fixedly connected to the rotating shaft 5, a second connecting arm 61 is rotatably connected to the second adjusting plate 6, a clamping block 62 is rotatably connected to the second connecting arm 61, the clamping block 62 is slidably connected in the through groove 14, a through hole 31 is opened on the connecting column 3, when the connecting and fixing assembly fixes the connecting column 3, the clamping block 62 is inserted into the through hole 31; a mounting block 33 is fixedly connected to the connecting column 3, and a second threaded hole 33 is opened on the mounting block 33 4, a second bolt 4 is threadedly connected to the second threaded hole 34, a knob 41 is fixedly connected to the bottom of the second bolt 4, the top of the second bolt 4 extends into the collar and is rotatably connected to a clamping block 42, an arc groove 43 is provided on the clamping block 42, an anti-skid layer 44 is provided in the arc groove 43; a mounting plate 51 is fixedly connected to the rotating shaft 5, a first adjusting plate 52 is fixedly connected to the mounting plate 51, a first connecting arm 53 is rotatably connected to the first adjusting plate 52, and the first connecting arm 53 is rotatably connected to the side wall of the clamping block 42.
[0035] When in use, the second bolt 4 is driven to rotate by the knob 41. Under the limit of the first connecting arm 53, the second bolt 4 drives the clamping block 42 to rise. After the clamping block 42 rises, it cooperates with the connecting column 3 or the pulley 35 to clamp the steel cable, thereby fixing the photovoltaic panel to prevent the photovoltaic panel from sliding on the steel cable.
[0036] At the same time, the clamping block 42 drives the mounting disk 51 to rotate through the first connecting arm 53 and the first adjusting plate 52, the mounting disk 51 drives the rotating shaft 5 to rotate, the rotating shaft 5 drives the second adjusting plate 6 to rotate, and the second adjusting plate 6 drives the card block 62 to slide through the second connecting arm 61, so that the card block 62 is inserted into the through hole 31, fixes the connecting column 3, prevents the connecting column 3 from sliding, and prevents the connecting column 3 from falling off the right-angle connecting plate 1.
[0037] Reference Figure 6 In order to prevent the block 62 from being inserted into the through hole 31 , one end of the block 62 that is first inserted into the through hole 31 is set as a bevel.
[0038] In this embodiment, the second bolt 4 drives the clamping block 42 to rise and clamp the steel cable, while the first connecting arm 53 drives the clamping block 62 to be inserted into the through hole 31 to fix the connecting column 3. At the same time, the first adjusting plate 52 limits the clamping block 42 through the first connecting arm 53 to prevent the clamping block 42 from rotating, avoids the arc groove 43 from being offset from the axis of the steel cable, and improves the accuracy of the clamping block 42 in fixing the steel cable.
[0039] Reference Figure 1 and Figure 2The snap-fit connection assembly includes a slide rod 8, a slide hole 13 is provided on the vertical plate of the right-angle connecting plate 1, the slide rod 8 is slidably connected in the slide hole 13, one end of the slide rod 8 facing the second bolt 4 is fixedly connected with a baffle 81, a spring 82 is sleeved on the slide rod 8, and the two ends of the spring 82 are respectively fixedly connected to the baffle 81 and the right-angle connecting plate 1, and a socket 45 is provided on the second bolt 4. When the fixed adjustment assembly is fixed to the steel cable, the slide rod 8 is inserted into the socket 45, and the other end of the slide rod 8 is fixedly connected with a handle 83.
[0040] When the clamping block 42 cooperates with the pulley 35 to clamp the steel cable, the slide rod 8 is inserted into the insertion hole 45 on the second bolt 4 under the passage of the spring 82 to limit and fix the second bolt 4 to prevent the second bolt 4 from sliding.
[0041] In summary, by driving the clamping block 62 to insert into the through hole 31 to fix the connecting column 3 during the action of clamping the steel cable, there is no need to fix a nut on the connecting column 3, thereby improving the installation efficiency of the photovoltaic panel on site.
[0042] Reference Figure 1 and Figure 3 A first threaded hole 11 is provided at the top of the right-angle connecting plate 1, and a first bolt 2 is threadedly connected in the first threaded hole 11. A first gasket 21 and a second gasket 22 are sleeved on the first bolt 2. The first gasket 21 is arranged between the photovoltaic panel and the right-angle connecting plate 1, and the second gasket 22 is arranged between the nut of the first bolt 2 and the right-angle connecting plate 1.
[0043] Reference Figure 1 , Figure 2 , Figure 5 and Figure 8 A hexagonal hole 71 is provided on the fixing ring 7, and the hexagonal hole 71 is coupled with the hexagonal screw head of the first bolt 2. A connecting block 72 is fixedly connected to the side wall of the fixing ring 7, and an insert rod 73 is fixedly connected to the connecting block 72. A slot 32 is provided on the connecting column 3, and the insert rod 73 is used to be inserted into the slot 32.
[0044] When the connecting column 3 is not fully inserted into the mounting hole 12, the fixing ring 7 is inserted into the hexagonal nut of the first bolt 2, and then the connecting column 3 is continued to be moved to insert the insert rod 73 into the slot 32, and then the connecting column 3 is fixed. At the same time, the connecting column 3 cooperates with the first bolt 2 to clamp and fix the fixing ring 7, and the fixing ring 7 is used to clamp and fix the first bolt 2 to prevent the first bolt 2 from loosening during use. In addition, the first bolt 2 and the fixing ring 7 can also be arranged as one.
[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A right-angle connector for connecting a flexible photovoltaic panel, comprising a right-angle connecting plate (1), characterized in that: Also includes: A first bolt (2) threadedly connected to the top of the right-angle connecting plate (1), wherein the first bolt (2) is used for threaded fixation with the flexible photovoltaic panel; A connecting column (3) is plugged into the right-angle connecting plate (1), the connecting column (3) and the right-angle connecting plate (1) form a ring, and the steel cable of the flexible photovoltaic support passes through the ring; A fixing ring (7) is sleeved on the first bolt (2) and is clamped with the connecting column (3); A connecting and fixing assembly, used for fixing the connecting column (3); A fixed adjustment component, arranged on the connecting column (3) and used for fixing the steel cable; When the fixed adjustment component increases the friction resistance between the ring and the steel cable, the fixed adjustment component drives the connecting fixed component to clamp the connecting column (3); The snap-fit connection component is arranged on the side plate of the right-angle connection plate (1), and when the fixing adjustment component drives the connection fixing component to clamp the connection column (3), the snap-fit connection component clamps the fixing adjustment component.
2. A right-angle connector for connecting flexible photovoltaic panels according to claim 1, characterized in that: The right-angle connecting plate (1) is an inverted "L"-shaped plate with a horizontal plate on the top and vertical plates on the side walls. A through slot (14) is provided on the vertical plate. Mounting holes (12) are provided above and below the through slot (14). The mounting holes (12) are connected to the through slot (14). The connecting column (3) is inserted into the mounting hole (12). The connecting fixing component is arranged in the through slot (14).
3. A right-angle connector for connecting flexible photovoltaic panels according to claim 2, characterized in that: The connecting column (3) is "U"-shaped, and the two straight rods of the connecting column (3) are inserted into the mounting hole (12), and the arc-shaped rod of the connecting column (3) and the vertical plate form a collar.
4. A right-angle connector for connecting flexible photovoltaic panels according to claim 3, characterized in that: A pulley (35) is rotatably connected to the connecting column (3). When the connecting column (3) is plugged into the right-angle connecting plate (1), the bottom of the pulley (35) is in contact with the steel cable.
5. A right-angle connector for connecting flexible photovoltaic panels according to claim 3, characterized in that: The connecting and fixing assembly comprises a rotating shaft (5) rotatably connected in the through groove (14); a second adjusting plate (6) is fixedly connected to the rotating shaft (5); a second connecting arm (61) is rotatably connected to the second adjusting plate (6); a clamping block (62) is rotatably connected to the second connecting arm (61); the clamping block (62) is slidably connected in the through groove (14); a through hole (31) is provided on the connecting column (3); when the connecting and fixing assembly fixes the connecting column (3), the clamping block (62) is inserted into the through hole (31).
6. A right-angle connector for connecting flexible photovoltaic panels according to claim 5, characterized in that: The connecting column (3) is fixedly connected to a mounting block (33), a second threaded hole (34) is provided on the mounting block (33), a second bolt (4) is threadedly connected to the second threaded hole (34), a knob (41) is fixedly connected to the bottom of the second bolt (4), the top of the second bolt (4) extends into a collar and is rotatably connected to a clamping block (42), an arc groove (43) is provided on the clamping block (42), and an anti-slip layer (44) is provided in the arc groove (43).
7. A right-angle connector for connecting flexible photovoltaic panels according to claim 6, characterized in that: The rotating shaft (5) is fixedly connected to a mounting plate (51), the mounting plate (51) is fixedly connected to a first adjustment plate (52), the first adjustment plate (52) is rotatably connected to a first connecting arm (53), and the first connecting arm (53) is rotatably connected to a side wall of the clamping block (42).
8. A right-angle connector for connecting flexible photovoltaic panels according to claim 6, characterized in that: The snap-fit connection assembly comprises a slide rod (8), a slide hole (13) is provided on the vertical plate of the right-angle connection plate (1), the slide rod (8) is slidably connected in the slide hole (13), one end of the slide rod (8) facing the second bolt (4) is fixedly connected with a baffle (81), a spring (82) is sleeved on the slide rod (8), two ends of the spring (82) are respectively fixedly connected to the baffle (81) and the right-angle connection plate (1), the second bolt (4) is provided with a plug hole (45), when the fixed adjustment assembly is fixed to the steel cable, the slide rod (8) is inserted into the plug hole (45), and the other end of the slide rod (8) is fixedly connected with a handle (83).
9. A right-angle connector for connecting flexible photovoltaic panels according to claim 3, characterized in that: A first threaded hole (11) is provided at the top of the right-angle connecting plate (1), the first bolt (2) is threadedly connected in the first threaded hole (11), a first gasket (21) and a second gasket (22) are sleeved on the first bolt (2), the first gasket (21) is arranged between the photovoltaic panel and the right-angle connecting plate (1), and the second gasket (22) is arranged between the nut of the first bolt (2) and the right-angle connecting plate (1).
10. A right-angle connector for connecting flexible photovoltaic panels according to claim 6, characterized in that: The fixing ring (7) is provided with a hexagonal hole (71), and the hexagonal hole (71) is coupled with the hexagonal screw head of the first bolt (2). The side wall of the fixing ring (7) is fixedly connected with a connecting block (72), and the connecting block (72) is fixedly connected with an insert rod (73). The connecting column (3) is provided with a slot (32), and the insert rod (73) is used to be inserted into the slot (32).
Citation Information
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