Cable supporting device
By using cable support devices of lifting brackets and rollers in overhead lines, the problem of operating troubles of wire fixing on the insulator is solved, the wire breakage and operation difficulty are reduced, and construction efficiency and safety are improved.
Patent Information
- Application Number
- CN202411294945.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2024-12-13
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During overhead lines construction, the operator needs to manually remove the wires on the pulleys and fix them to the insulator. This operation is troublesome, with high physical strength requirements and safety hazards.
A cable support device is designed, including a lifting bracket and a roller. The lifting bracket can be lifted and arranged on the crossbar, and the roller can be rotated. When the lifting bracket is in the supporting position, the rollers will be driven to lift the cable, so that the rollers will be lower than the position. On the surface of the insulator, the cable is overlapped on the insulator, reducing the friction between the conductor and simplifying the wire fixing process.
Through the installation of the lift bracket, the need to manually drag the wire is avoided, the switching between the wire between the insulator and the roller is simplified, the risk of wire damage and operation difficulty is reduced, and the construction efficiency and safety are improved.
Smart Images

Figure CN119134186A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of cable supporting devices, and in particular to a cable supporting device. Background Art
[0002] Overhead lines are generally used in the construction of non-urban power trunk lines. Overhead lines include electric poles set on the ground, cross arms set on the electric poles, rollers set on the cross arms, and insulators set on the cross arms. The rollers are rotatably set on the cross arms and are located on one side of the insulator. When laying the wires, hundreds of meters of wires need to be laid out each time. In order to reduce the friction between the wires and the cross arms, the wires need to be laid on the rollers. When laying out the wires, the wires on the rollers are dragged to reduce the possibility of wire damage.
[0003] In the related art, when the wire reaches a predetermined length, the operator needs to manually take out the wire on the pulley and drag it to the top of the insulator to fix the wire on the insulator. Since the wire is long and heavy, and the cross arm can only be operated by one person due to limited space, the operation of taking out the wire on the pulley and fixing it on the insulator is troublesome, requiring high physical strength of the operator, high work intensity and posing safety hazards. Summary of the invention
[0004] The main purpose of the present invention is to provide a cable support device to solve the problem in the related art that the operation of taking out the wire from the pulley and fixing it on the insulator is troublesome.
[0005] In order to achieve the above-mentioned purpose, the present invention provides a cable support device, which is arranged on a cross arm of a utility pole, and the cable support device includes: a lifting bracket, which is liftable and arranged on the cross arm and is located on one side of an insulator on the cross arm, and the lifting bracket is lifted and lowered to have a supporting position and a placement position; a roller, which is rotatably arranged on the lifting bracket; wherein, when the lifting bracket is in the supporting position, the lifting bracket rises to drive the roller to lift the cable, and the cable is located above the insulator; when the lifting bracket is in the placement position, the lifting bracket descends to make the roller lower than the upper surface of the insulator, and the cable is overlapped on the insulator.
[0006] Furthermore, the lifting bracket includes: a base connected to the cross arm; a top plate located above the base and spaced apart from the base, and a roller rotatably arranged on the top plate; a first support arm connected between the base and the top plate; a second support arm connected between the base and the top plate, and the first support arm and the second support arm are spaced apart; a driving member passed through the first support arm and the second support arm, and the driving member drives the first support arm and the second support arm to move closer to or away from each other, so as to drive the top plate to rise or fall.
[0007] Furthermore, the first support arm includes a first support rod and a second support rod, the first end of the first support rod is hinged to the base, the second end of the first support rod is hinged to the first end of the second support rod, and the second end of the second support rod is hinged to the top plate; the second support arm includes a third support rod and a fourth support rod, the first end of the third support rod is hinged to the base, the second end of the third support rod is hinged to the first end of the fourth support rod, and the second end of the fourth support rod is hinged to the top plate.
[0008] Furthermore, the driving member includes a first screw rod, the first support rod and the second support rod are hinged by a first pin shaft, and a first threaded hole is arranged on the first pin shaft; the third support rod and the fourth support rod are hinged by a second pin shaft, and a light hole is arranged on the second pin shaft; the first end of the first screw rod cooperates with the first threaded hole, and the second end of the first screw rod is passed through the light hole, and the first screw rod rotates to drive the first pin shaft and the second pin shaft to approach or move away from each other, so as to drive the top plate to rise or fall.
[0009] Furthermore, a stop block is provided on the second end of the first screw rod, and the stop block cooperates with the second pin shaft stop.
[0010] Furthermore, there are two lifting brackets and two rollers, which are respectively arranged on both sides of the insulator, and the cable support device also includes a support beam arranged on the cross arm; the two lifting brackets can be movably arranged on the support beam so that the two lifting brackets can approach or move away from each other.
[0011] Furthermore, the cable support device also includes a second screw rod, a second threaded hole is provided on the stop block, and the second screw rod cooperates with the second threaded holes on the two lifting brackets so that when the second screw rod rotates, it can drive the two lifting brackets to move closer to or away from each other.
[0012] Furthermore, there are two lifting brackets and two rollers, and the two lifting brackets and the two rollers are respectively arranged on both sides of the insulator.
[0013] Furthermore, a guide groove is arranged on the cross arm, and the cable supporting device also includes a support beam arranged in the guide groove, the support beam is movably arranged in a direction close to or away from the insulator, and the lifting bracket is arranged on the support beam.
[0014] Furthermore, there are two lifting brackets and two rollers, which are respectively arranged on both sides of the insulator. The support beam includes a first support segment arranged at an angle to the cross arm, a second support segment and a third support segment connected to both ends of the first support segment, the first support segment is movably arranged on the cross arm, and the two lifting brackets are respectively arranged on the first support segment and the second support segment.
[0015] By applying the technical solution of the present invention, a cable support device is arranged on the cross arm of a utility pole. The cable support device includes: a lifting bracket and a roller. The lifting bracket can be lifted and lowered on the cross arm and is located on one side of the insulator on the cross arm. The lifting bracket is lifted and lowered to have a supporting position and a placing position. The roller is rotatably arranged on the lifting bracket. When the lifting bracket is in the supporting position, the lifting bracket rises to drive the roller to lift the cable, and the cable is located above the insulator. When the lifting bracket is in the placing position, the lifting bracket descends so that the roller is lower than the upper surface of the insulator, and the cable is overlapped on the insulator. In this way, when the wire is released, the wire is placed on the roller. When the wire is released, the wire on the roller is dragged to reduce the possibility of wire damage. In addition, when the wire is released, the lifting bracket is in the supporting position, so that the roller lifts the cable, so that the roller can roll when the wire is dragged, and the possibility of friction between the wire and the insulator is reduced. When the wire reaches a predetermined length, the lifting bracket is in a placement position, so that the roller can be lower than the upper surface of the insulator, so that the wire can be overlapped on the insulator, which is convenient for fixing the wire on the insulator. In this way, the setting of the lifting bracket can make it possible to switch the wire between the insulator and the roller, avoiding the problem of the operator manually dragging the wire in the related art, making it easier to take out the wire on the pulley and fix it on the insulator. Therefore, the technical solution of the present application effectively solves the problem of the troublesome operation of taking out the wire on the pulley and fixing it on the insulator in the related art. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:
[0017] Figure 1 A schematic top view of an embodiment of a cable support device according to the present invention is shown;
[0018] Figure 2 Shows Figure 1 A schematic front view of a cable support device;
[0019] Figure 3 Shows Figure 1 A side view schematic diagram of a cable support device.
[0020] The above drawings include the following reference numerals:
[0021] 11. base; 12. top plate; 13. first support rod; 14. second support rod; 15. third support rod; 16. fourth support rod; 17. first screw rod; 18. stop block; 191. first pin shaft; 192. second pin shaft;
[0022] 20. Support beam;
[0023] 30. Second screw;
[0024] 40. Roller;
[0025] 52. Cross arm; 53. Insulator; 54. Wire. DETAILED DESCRIPTION
[0026] 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, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. 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.
[0027] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0028] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.
[0029] like Figures 1 to 3As shown, the technical solution of this embodiment is applied, and the cable support device is arranged on the cross arm 52 of the electric pole. The cable support device includes: a lifting bracket and a roller 40. The lifting bracket is arranged on the cross arm 52 in a liftable manner and is located on one side of the insulator 53 on the cross arm 52. The lifting bracket is lifted to have a supporting position and a placement position. The roller 40 is rotatably arranged on the lifting bracket. Among them, when the lifting bracket is in the supporting position, the lifting bracket rises to drive the roller 40 to lift the cable, and the cable is located above the insulator 53. When the lifting bracket is in the placement position, the lifting bracket descends so that the roller 40 is lower than the upper surface of the insulator 53, and the cable is overlapped on the insulator 53.
[0030] In this way, when the wire 54 is being paid out, the wire 54 is laid on the roller 40. When the wire 54 is being paid out, the wire 54 is dragged on the roller 40, which can reduce the possibility of the wire 54 being damaged. In addition, when the wire 54 is being paid out, the lifting bracket is in the supporting position, so that the roller 40 lifts up the cable, so that the roller 40 can roll when the wire 54 is dragged, and the possibility of the wire 54 and the insulator 53 being rubbed is reduced. When the wire 54 is paid out to a predetermined length, the lifting bracket is in the placement position, so that the roller 40 can be lower than the upper surface of the insulator 53, so that the wire 54 can be overlapped on the insulator 53, and it is convenient to fix the wire 54 on the insulator 53. In this way, the setting of the lifting bracket can make the wire 54 switch between the insulator 53 and the roller 40, avoiding the problem of the operator manually dragging the wire 54 in the related art, making it easier to take out the wire 54 on the pulley and fix it on the insulator 53. Therefore, the technical solution of this embodiment effectively solves the problem in the related art that the operation of taking out the wire 54 on the pulley and fixing it on the insulator 53 is troublesome.
[0031] like Figures 1 to 3 The lifting bracket shown includes: a base 11, a top plate 12, a first support arm, a second support arm and a driving member. The base 11 is connected to the cross arm 52. The top plate 12 is located above the base 11 and is spaced apart from the base 11, and the roller 40 is rotatably arranged on the top plate 12. The first support arm is connected between the base 11 and the top plate 12. The second support arm is connected between the base 11 and the top plate 12, and the first support arm and the second support arm are spaced apart. The driving member is arranged on the first support arm and the second support arm, and the driving member drives the first support arm and the second support arm to move closer to or away from each other to drive the top plate 12 to rise or fall. The above arrangement makes the structure of the lifting bracket simple and easy to process, and enables the lifting bracket to drive the roller 40 to rise and fall more stably and reliably.
[0032] In other embodiments, the first support arm and the second support arm are both elastic arc plates, and the middle parts of the two elastic arc plates are close to each other to increase the distance between the two ends of each elastic arc plate, so that the lifting bracket is in the supporting position.
[0033] like Figures 1 to 3 The first support arm shown includes a first support rod 13 and a second support rod 14. The first end of the first support rod 13 is hinged to the base 11, the second end of the first support rod 13 is hinged to the first end of the second support rod 14, and the second end of the second support rod 14 is hinged to the top plate 12. The second support arm includes a third support rod 15 and a fourth support rod 16, the first end of the third support rod 15 is hinged to the base 11, the second end of the third support rod 15 is hinged to the first end of the fourth support rod 16, and the second end of the fourth support rod 16 is hinged to the top plate 12. The above arrangement makes the structure of the first support arm and the second support arm simple and easy to process, so that the first support arm and the second support arm support the top plate 12 more stably and reliably.
[0034] like Figures 1 to 3 The driving member shown includes a first screw rod 17, and the first support rod 13 and the second support rod 14 are hinged by a first pin shaft 191, and a first threaded hole is provided on the first pin shaft 191. The third support rod 15 and the fourth support rod 16 are hinged by a second pin shaft 192, and a light hole is provided on the second pin shaft 192. The first end of the first screw rod 17 cooperates with the first threaded hole, and the second end of the first screw rod 17 is inserted into the light hole. The first screw rod 17 rotates to drive the first pin shaft 191 and the second pin shaft 192 to approach or move away from each other, so as to drive the top plate 12 to rise or fall. The arrangement of the first pin shaft 191 and the second pin shaft 192 facilitates the rotation of the first screw rod 17 to drive the top plate 12 to rise or fall. The above arrangement has a simple structure and is easy to process.
[0035] like Figures 1 to 3 A stopper 18 is provided on the second end of the first screw 17, and the stopper 18 is engaged with the second pin 192. The setting of the stopper 18 can limit the relative position of the second pin 192 and the first screw 17, so that the second pin 192 can approach or move away from the first pin 191 under the action of the first screw 17.
[0036] like Figures 1 to 3 There are two lifting brackets and two rollers 40 shown, and the two lifting brackets and the two rollers 40 are respectively arranged on both sides of the insulator 53, and the cable support device also includes a support beam 20 arranged on the cross arm 52. The arrangement of the two lifting brackets and the two rollers 40 allows the wires 54 located on both sides of the insulator 53 to be better supported, so as to further reduce the friction between the wires 54 and the insulator 53. Both lifting brackets can be movably arranged on the support beam 20, so that the two lifting brackets can be close to or away from each other. In this way, the wires 54 near the insulator 53 can adjust the distance between the two lifting brackets according to the tension, so that the lifting brackets can better support the wires 54.
[0037] In this embodiment, two lifting brackets are arranged at intervals along the extending direction of the wire 54 .
[0038] like Figures 1 to 3 The cable support device shown also includes a second screw rod 30. A second threaded hole is provided on the stop block 18, and the second screw rod 30 cooperates with the second threaded holes on the two lifting brackets so that the second screw rod 30 can drive the two lifting brackets to move closer to or away from each other when rotating. The provision of the second screw rod 30 and the second threaded hole makes it more convenient and quick to drive the two lifting brackets to move relative to each other, and is easy to process.
[0039] In this embodiment, a hexagonal head is provided at one end of the second screw rod 30 , and an operator can use an electric tool to drive the hexagonal head to rotate to drive the second screw rod 30 to rotate, so that the two lifting brackets are moved closer to or away from each other.
[0040] In this embodiment, the second screw rod 30 includes a first thread segment and a second thread segment, and the first thread segment and the second thread segment have opposite rotation directions. The second threaded hole on the stop block 18 of one of the two lifting brackets cooperates with the first thread segment, and the second threaded hole on the stop block 18 of the other of the two lifting brackets cooperates with the second thread segment. In this way, when the second screw rod 30 rotates, the stop blocks 18 of the two lifting brackets can be moved closer or farther away more quickly, thereby improving work efficiency.
[0041] like Figures 1 to 3 There are two lifting brackets and two rollers 40, which are respectively arranged on both sides of the insulator 53. The arrangement of the two lifting brackets and the two rollers 40 enables the wires 54 on both sides of the insulator 53 to be better supported, so as to further reduce the friction between the wires 54 and the insulator 53.
[0042] like Figures 1 to 3 The cross arm 52 is provided with a guide groove, and the cable support device further includes a support beam 20 disposed in the guide groove, the support beam 20 is movably disposed in a direction close to or away from the insulator 53, and the lifting bracket is disposed on the support beam 20. The arrangement of the support beam 20 and the guide groove enables the lifting bracket to move in a direction close to or away from the insulator 53, so that the lifting bracket can be moved more accurately to one side of the insulator 53, so that the lifting bracket can support the wire 54 more reliably.
[0043] In other embodiments, both the lifting brackets and the rollers 40 are two, and the two lifting brackets and the two rollers 40 are respectively arranged on both sides of the insulator 53. The arrangement of the two lifting brackets and the two rollers 40 enables the wires 54 located on both sides of the insulator 53 to be better supported, so as to further reduce the friction between the wires 54 and the insulator 53. The support beam 20 includes a first support section arranged at an angle to the cross arm 52, and second and third support sections connected to both ends of the first support section. The first support section is movably arranged on the cross arm 52, and the two lifting brackets are respectively arranged on the first support section and the second support section. In this way, when the first support section moves on the cross arm 52, it can drive the second support section and the third support section to move synchronously, so as to drive the two lifting brackets to move relative to the cross arm 52, so that the lifting brackets can move in a direction close to or away from the insulator 53, so as to be able to move the lifting brackets more accurately to one side of the insulator 53, so that the lifting brackets can more reliably support the wires 54.
[0044] In this embodiment, the first support section, the second support section and the third support section form a "C" - shaped structure, and the opening formed by the first support section, the second support section and the third support section facilitates the entry and exit of the insulator 53.
[0045] In this embodiment, the pulley is provided with a groove, and when the pulley supports the wire 54 or the wire 54 is lapped on the pulley, the wire 54 is located in the groove. The lifting bracket is detachably connected to the cross arm 52.
[0046] In other embodiments, when the lifting bracket is in the supporting position, the lifting bracket moves to drive the wire 54 on the roller 40 to be located on one side of the insulator 53. When the lifting bracket is in the placing position, the lifting bracket moves to drive the wire 54 on the roller 40 to contact the insulator 53, so as to facilitate the operator to fix the insulator 53 and the wire 54.
[0047] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.
[0048] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.
[0049] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.
[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A cable support device, arranged on a cross arm (52) of a utility pole, It is characterized in that The cable supporting device comprises: A lifting bracket is liftably arranged on the cross arm (52) and is located on one side of the insulator (53) on the cross arm (52), and the lifting bracket is lifted to have a supporting position and a placement position; A roller (40) rotatably arranged on the lifting bracket; When the lifting bracket is in the supporting position, the lifting bracket rises to drive the roller (40) to lift the cable, and the cable is located above the insulator (53); when the lifting bracket is in the placing position, the lifting bracket descends to make the roller (40) lower than the upper surface of the insulator (53), and the cable is overlapped on the insulator (53).
2. The cable support device according to claim 1, It is characterized in that The lifting bracket comprises: A base (11) connected to the cross arm (52); A top plate (12) is located above the base (11) and is spaced apart from the base (11), and the roller (40) is rotatably disposed on the top plate (12); A first supporting arm connected between the base (11) and the top plate (12); A second support arm is connected between the base (11) and the top plate (12), the first support arm and the second support arm being arranged at an interval; A driving member is provided on the first supporting arm and the second supporting arm, and the driving member drives the first supporting arm and the second supporting arm to move closer to each other or away from each other, so as to drive the top plate (12) to rise or fall.
3. The cable support device according to claim 2, It is characterized in that The first supporting arm comprises a first support rod (13) and a second support rod (14), the first end of the first support rod (13) is hinged to the base (11), the second end of the first support rod (13) is hinged to the first end of the second support rod (14), and the second end of the second support rod (14) is hinged to the top plate (12); The second supporting arm comprises a third support rod (15) and a fourth support rod (16), the first end of the third support rod (15) being hinged to the base (11), the second end of the third support rod (15) being hinged to the first end of the fourth support rod (16), and the second end of the fourth support rod (16) being hinged to the top plate (12).
4. The cable support device according to claim 3, It is characterized in that The driving member comprises a first screw rod (17); the first support rod (13) and the second support rod (14) are hingedly connected via a first pin shaft (191); a first threaded hole is provided on the first pin shaft (191); the third support rod (15) and the fourth support rod (16) are hingedly connected via a second pin shaft (192); a light hole is provided on the second pin shaft (192); The first end of the first screw rod (17) cooperates with the first threaded hole, and the second end of the first screw rod (17) is inserted into the light hole. The first screw rod (17) rotates to drive the first pin shaft (191) and the second pin shaft (192) to approach each other or move away from each other, so as to drive the top plate (12) to rise or fall.
5. The cable support device according to claim 4, It is characterized in that A stop block (18) is provided on the second end of the first screw rod (17), and the stop block (18) is in stop cooperation with the second pin shaft (192).
6. The cable support device according to claim 5, It is characterized in that There are two lifting brackets and two rollers (40), and the two lifting brackets and the two rollers (40) are respectively arranged on both sides of the insulator (53), and the cable support device also includes a support beam (20) arranged on the cross arm (52); The two lifting brackets are both movably arranged on the support beam (20) so that the two lifting brackets can move closer to each other or farther away from each other.
7. The cable support device according to claim 6, It is characterized in that The cable supporting device further comprises a second screw rod (30), a second threaded hole is provided on the stop block (18), and the second screw rod (30) cooperates with the second threaded holes on the two lifting brackets so that the second screw rod (30) can drive the two lifting brackets to move closer to or away from each other when rotating.
8. The cable support device according to claim 1, It is characterized in that There are two lifting brackets and two rollers (40), and the two lifting brackets and the two rollers (40) are respectively arranged on both sides of the insulator (53).
9. The cable support device according to claim 1, It is characterized in that A guide groove is provided on the cross arm (52), and the cable support device further comprises a support beam (20) arranged in the guide groove, the support beam (20) is movably arranged in a direction approaching or moving away from the insulator (53), and the lifting bracket is arranged on the support beam (20).
10. The cable support device according to claim 9, It is characterized in that There are two lifting brackets and two rollers (40), and the two lifting brackets and the two rollers (40) are respectively arranged on both sides of the insulator (53); the support beam (20) comprises a first support section arranged at an angle to the cross arm (52), a second support section and a third support section connected to both ends of the first support section; the first support section is movably arranged on the cross arm (52), and the two lifting brackets are respectively arranged on the first support section and the second support section.
