Root opening control device and control method

Abstract

This invention provides a root opening control device and method, belonging to the field of power transmission technology. The root opening control device includes a length adjustment component and a corner adjustment component. The length adjustment component includes a telescopic component and connectors located at both ends of the telescopic component, with the two connectors respectively connecting to the two tower legs. The corner adjustment component includes two angled supports that abut against two adjacent inner walls of the tower legs. The supports are detachably connected to the connectors, and the inner side of each support has multiple connecting parts for connecting the telescopic component. The root opening control device provided by this invention, by setting the telescopic component and connectors between the two tower legs and setting two supports on the inner side of the tower legs, with the supports connected to the connectors, achieves the effect of increasing the supporting force between the tower legs and real-time adjustment of deformed tower legs, thereby improving the installation efficiency of the power tower.

Description

Technical Field

[0001] This invention belongs to the field of power transmission technology, and more specifically, relates to a root-opening control device and control method. Background Technology

[0002] The integral tower erection method involves assembling the entire tower on the ground and then using a crane to lift it into place. Finally, personnel climb the tower to detach the hook, effectively reducing the number of people working at height. However, during the integral lifting process, because only the lifting points bear the force, and given the tower's significant weight, slight deformation is inevitable, making it difficult to position the tower legs. Summary of the Invention

[0003] The purpose of this invention is to provide a root opening control device and control method, which aims to adjust the root opening distance of the iron tower to facilitate the installation of the tower feet.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is: to provide a root opening control device, comprising:

[0005] The length adjustment assembly includes a telescopic component and connectors located at both ends of the telescopic component, with the two connectors respectively connected to the two tower legs of the iron tower;

[0006] The corner adjustment assembly includes two support members that are angled and abut against two adjacent inner sidewalls of the tower foot. The support members are detachably connected to the connector. The inner side of the support members is provided with a plurality of connecting parts for connecting the telescopic assembly.

[0007] In another embodiment of this application, the connector includes a horizontal plate and a vertical plate connected vertically. The horizontal plate is connected to the end of the telescopic assembly, and the vertical plate is attached to the outside of the tower foot. The vertical plate is connected to the support member to limit the tower foot to the outside of the support member. Both the support member and the connector have multiple bolt holes, and the support member and the connector are connected to each other or to the tower foot by means of bolts.

[0008] As another embodiment of this application, the telescopic component includes:

[0009] A fixed sleeve has two extension rods slidably connected inside it. Both extension rods are slidably arranged along the length direction of the fixed sleeve. The two extension rods extend outward from both ends of the fixed sleeve and are respectively connected to the two connectors. Toothed plates are installed on opposite sides of the two extension rods.

[0010] The gear set includes a rotating shaft passing through the fixed sleeve and a first gear and a second gear sleeved on the rotating shaft. The first gear is located inside the fixed sleeve, and the second gear is located outside the fixed sleeve. The first gear meshes with the toothed plates on the two extension rods simultaneously. The rotation of the first gear drives the extension rods to move in opposite directions.

[0011] In another embodiment of this application, a locking member is rotatably connected to the fixed sleeve. The locking member is located on one side of the second gear, and a locking part is provided on the locking member. The locking part abuts between two adjacent teeth of the second gear to prevent the second gear from rotating.

[0012] In another embodiment of this application, the fixing sleeve is provided with a positioning member, which is located on the side of the hinge axis between the locking member and the fixing sleeve away from the second gear, and the positioning member and the locking member are connected by an elastic member.

[0013] In another embodiment of this application, a limiting member is provided on the side of the second gear away from the positioning member. The limiting member moves along the length direction of the fixed sleeve to limit the locking member.

[0014] In another embodiment of this application, the telescopic assembly includes a plurality of fixed sleeves connected in sequence, with adjacent fixed sleeves connected by a flange.

[0015] In another embodiment of this application, the two supports located on the same corner adjustment assembly are arranged at right angles, and a detachable right-angle reinforcing rib is provided between the two supports.

[0016] In another embodiment of this application, at least two sets of parallel telescopic components are provided between two supports located on the same corner adjustment assembly, and a strut is vertically connected between two adjacent telescopic components.

[0017] The beneficial effects of the root opening control device provided by the present invention are as follows: Compared with the prior art, the root opening control device provided by the present invention overcomes the problems of insufficient support between the tower legs causing deformation of the tower legs during hoisting, and the difficulty in adjusting the deformed tower legs, by setting an expansion joint and a connector between the two tower legs and setting two support members on the inner side of the tower legs. The support members are connected to the connector. This achieves the effect of increasing the support between the tower legs and real-time adjustment of the deformed tower legs, thereby improving the installation efficiency of the iron tower.

[0018] The present invention also provides a root opening control method, which employs the above-mentioned root opening control device and includes the following steps:

[0019] S1. Install the two connectors at the ends of the two extension rods respectively; fix the two connectors to the two adjacent tower legs and secure the locking parts;

[0020] S2. Repeat step S1 to install root opening control devices between all towers;

[0021] S3. When the hoisting tower is ready to be in place, open the locking mechanism and adjust the length of the telescopic assembly.

[0022] The beneficial effects of the root opening control method provided by the present invention are as follows: Compared with the prior art, the root opening control method provided by the present invention adopts the above-mentioned root opening control device and has all the beneficial effects of the above-mentioned root opening control device; it overcomes the problems of insufficient support between tower legs causing deformation of tower legs during hoisting, and the difficulty in adjusting the deformed tower legs, which makes it difficult to install the tower legs in place; thereby achieving the effect of increasing the support between tower legs and real-time adjustment of deformed tower legs, and improving the installation efficiency of the iron tower. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the root opening control device provided in an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of the telescopic component provided in an embodiment of the present invention;

[0026] Figure 3 A top view of the telescopic component provided in an embodiment of the present invention;

[0027] Figure 4 This is a top view of the telescopic component provided in the second embodiment of the present invention;

[0028] Figure 5 A cross-sectional view of a telescopic component provided in an embodiment of the present invention;

[0029] Figure 6 This is a cross-sectional view of the telescopic component provided in the third embodiment of the present invention.

[0030] In the diagram: 1. Connector; 2. Support; 3. Support rod; 4. Corner reinforcing rib; 5. Fixing sleeve; 6. Extension rod; 7. Hinge ear plate; 8. Positioning component; 9. Locking component; 10. Limiting component; 11. Hexagonal nut; 12. First gear; 13. Second gear; 14. Drive motor; 15. Threaded rod; 16. Gear plate; 17. Tightening wheel; 18. Flange. Detailed Implementation

[0031] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0032] It should be noted that when an element is referred to as "fixed to" or "set on" another element, it can be directly or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly or indirectly connected to the other element. It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] Please see Figures 1 to 6 The root opening control device and control method provided by the present invention will now be described. The root opening control device includes a length adjustment component and a corner adjustment component. The length adjustment component includes a telescopic component and connectors 1 located at both ends of the telescopic component. The two connectors 1 are respectively connected to the two tower legs of the iron tower. The corner adjustment component includes two support members 2 that are set at an angle and respectively abut against two adjacent inner sidewalls of the tower legs. The support members 2 are detachably connected to the connectors 1. The inner side of the support members 2 is provided with a plurality of connecting parts for connecting the telescopic component.

[0034] Compared with the prior art, the root opening control device provided by the present invention has two connecting parts 1 at both ends of the telescopic component connected to two adjacent tower legs respectively. The telescopic component is used to extend or shorten to adjust the distance between the tower legs. The corner adjustment component includes two support members 2, which are installed on the connecting parts 1 and attached to the inner side of the tower leg by means of the connecting parts 1. The two support members 2 are set at an angle to support the corner of the tower leg. Multiple connecting parts are provided inside the two support members 2. The telescopic component connects to any connecting part on different support members 2 to strengthen the strength of each tower leg.

[0035] Before installation, the entire tower is first assembled, the positions of the four tower legs and the distances between adjacent tower legs are determined, and the angles of the two inner sidewalls of each tower leg are determined. Next, connector 1 and support 2 are installed. Support 2 is attached to the two inner sidewalls of the tower leg, connector 1 is connected to support 2, and the end of connector 1 is connected to the tower leg. The length of the telescopic component of the length adjustment assembly is adjusted according to the position of the tower leg, the telescopic component on support 2 is arranged, and the length of the telescopic component is determined. Finally, the tower is hoisted. During the hoisting process, the tower legs are subjected to the action of the length adjustment assembly and the angle adjustment assembly to maintain their original state without deformation, and to adjust any deformed tower legs in a timely manner to facilitate the installation of the tower legs.

[0036] The root opening control device provided by the present invention overcomes the problems of insufficient support between tower legs causing tower legs to deform during hoisting, and the difficulty in adjusting the deformed tower legs, which makes it difficult to install the tower legs in place. It also achieves the effect of increasing the support between tower legs and real-time adjustment of deformed tower legs, thereby improving the installation efficiency of the iron tower.

[0037] Optionally, the connecting part has multiple bolt holes. By connecting the telescopic assembly through the bolt holes, the telescopic assembly can be fixed between any two support members 2, thereby achieving the function of fixing the support members 2.

[0038] As a specific implementation method of the root opening control device provided by the present invention, please refer to Figure 1 The connector 1 includes a horizontal plate and a vertical plate that are vertically connected. The horizontal plate is connected to the end of the telescopic assembly, and the vertical plate is attached to the outside of the tower foot. The vertical plate is connected to the support 2 to limit the tower foot to the outside of the support 2.

[0039] The connector 1 is L-shaped and includes a horizontal plate and a vertical plate. The horizontal plate is connected to the free end of the telescopic component, and the vertical plate is perpendicular to the horizontal plate and extends away from the telescopic component. The side wall of the vertical plate is attached to the outside of the tower foot and connected to the support member 2 on the inside of the tower foot. The structure of the tower foot is clamped between the vertical plate and the support member 2, which strengthens the connection between the tower foot and the root opening control device. At the same time, it improves the connection strength between the support member 2 and the connector 1, and improves the ease of use of the root opening control device.

[0040] As a specific implementation method of the root opening control device provided by the present invention, please refer to Figure 1 Both the support member 2 and the connector 1 have multiple bolt holes, and the support member 2 and the connector 1 are connected to each other or to the tower foot by means of bolts.

[0041] The support member 2 is plate-shaped, and its length direction is consistent with that of the connector 1. The outer wall of the support plate is attached to the inner wall of the tower foot, and a mounting part is provided on the inner wall of the support plate. Multiple bolt holes are spaced apart along the length direction of the support plate, and the bolt holes penetrate the support plate horizontally for connection with the bolt holes on the connector 1.

[0042] The end of the support member 2 is provided with a first bolt hole, which corresponds to the bolt hole on the horizontal plate of the connector 1. The support member 2 is attached to one side of the horizontal plate by means of the first bolt hole, and an installation groove is formed between the support member 2 and the vertical plate. The side wall of the tower foot is clamped in the installation groove and fixed by means of the bolt holes on the support member 2 and the connector 1.

[0043] As a specific implementation method of the root opening control device provided by the present invention, please refer to Figure 3 , Figure 4 and Figure 5 The telescopic assembly includes a fixed sleeve 5 and a gear set; two extension rods 6 are slidably connected inside the fixed sleeve 5, and both extension rods 6 are slidably arranged along the length direction of the fixed sleeve 5. The two extension rods 6 extend outward from both ends of the fixed sleeve 5 and are respectively connected to two connectors 1; toothed plates 16 are installed on opposite sides of the two extension rods 6; the gear set includes a rotating shaft passing through the fixed sleeve 5 and a first gear 12 and a second gear 13 sleeved on the rotating shaft. The first gear 12 is located inside the fixed sleeve 5, and the second gear 13 is located outside the fixed sleeve 5. The first gear 12 meshes with the toothed plates 16 on the two extension rods 6 at the same time. The rotation of the first gear 12 drives the extension rods 6 to move in opposite directions.

[0044] The telescopic assembly includes a fixed sleeve 5 and two extension rods 6 passing through the fixed sleeve 5. The two extension rods 6 pass through both ends of the fixed sleeve 5 and extend into the fixed sleeve 5. The portions of the two extension rods 6 that extend into the fixed sleeve 5 are provided with toothed plates 16. The toothed plates 16 are provided on the opposite surfaces of the two extension rods 6, and the toothed plates 16 mesh with a first gear 12 that is rotatably provided in the fixed sleeve 5.

[0045] When the first gear 12 rotates, it drives the toothed plates 16 on the two extension rods 6 that mesh with it to move simultaneously, thereby driving the two extension rods 6 to move in opposite directions or in the opposite direction at the same time, so as to adjust the length of the telescopic component.

[0046] A rotating shaft passes through the upper and lower end faces of the fixed sleeve 5, and a first gear 12 and a second gear 13 are fitted onto the rotating shaft. The first gear 12 is located inside the fixed sleeve 5, and the second gear 13 is located at the upper end of the fixed sleeve 5. The first gear 12 and the second gear 13 rotate synchronously with the rotating shaft. The second gear 13 protrudes from the upper end of the rotating shaft and extends outward. A coaxial hexagonal nut 11 is provided at the upper end of the rotating shaft. Figure 2 and Figure 3 As shown.

[0047] When in use, turning the hexagonal nut 11 causes the first gear 12 and the second gear 13 to rotate simultaneously, and the first gear 12 drives the extension rod 6, which meshes with it, to move simultaneously.

[0048] Optionally, both the second gear 13 and the first gear 12 are mounted on a rotating shaft, and a threaded rod 15 meshes with the outer side of the second gear 13. The threaded rod 15 is connected to a drive motor 14. Figure 4 As shown. Under the action of the drive motor 14, the threaded rod 15 rotates, which drives the second gear 13 to rotate. The rotation of the second gear 13 drives the rotating shaft and the first gear 12 to rotate. The first gear 12 and the gear plate 16 cooperate to drive the two extension rods 6 to move.

[0049] Optionally, the rotating shaft is located in the middle of the fixed sleeve 5, and the two extension rods 6 are located on both sides of the rotating shaft, and the two extension rods 6 are slidably connected to the inner wall of the fixed sleeve 5. At least one pair of clamping wheels 17 are also symmetrically arranged inside the fixed sleeve 5. The clamping wheels 17 clamp the extension rods 6 against the inner wall of the fixed sleeve 5 to prevent them from shaking.

[0050] As a specific implementation method of the root opening control device provided by the present invention, please refer to Figure 3 A locking member 9 is rotatably connected to the fixed sleeve 5. The locking member 9 is located on one side of the second gear 13. The locking member 9 is provided with a locking part, which abuts between two adjacent teeth of the second gear 13 to prevent the second gear 13 from rotating.

[0051] A locking member 9 is provided on the side of the fixed sleeve 5 where the second gear 13 is located. The locking member 9 is rotatably connected to the fixed sleeve 5 by means of a rotating shaft, and the locking member 9 is provided with a limiting part, a locking part, and a connecting part in sequence along its length direction; the rotating shaft is provided on the connecting part. The locking part is located on the side of the locking member 9 near the second gear 13, and the locking part has a pointed tooth end extending outward. When the extension rod 6 moves to the required length, the locking member 9 is rotated to rotate around the rotating shaft until the pointed tooth end of the locking part abuts between two teeth on the second gear 13.

[0052] When the locking part's pointed teeth abut against the two teeth of the second gear 13, the second gear 13 cannot rotate, and the first gear 12, which is coaxially arranged with the second gear 13, cannot rotate, thereby restricting the movement of the extension rod 6.

[0053] As a specific implementation method of the root opening control device provided by the present invention, please refer to Figure 3 and Figure 4 The fixed sleeve 5 is provided with a positioning element 8, which is located on the side away from the second gear 13 of the hinge axis between the locking element 9 and the fixed sleeve 5. The positioning element 8 and the locking element 9 are connected by an elastic element.

[0054] A positioning element 8 is provided on the fixed sleeve 5 on the side of the rotating shaft away from the locking part. An elastic element is connected to the positioning element 8, and the elastic element is connected to the positioning part provided on the side of the locking part 9 near the second gear 13. The elastic element is a spring, with one end connected to the positioning element 8 on the fixed sleeve 5 and the other end connected to the positioning part. The spring is always in a stretched state. Under the action of the spring force, the locking part 9 is always subjected to a tension force tending towards the second gear 13. Without the action of other external forces, the locking part of the locking part 9 is always located between the teeth of the second gear 13, maintaining the locked state of the second gear 13.

[0055] When it is necessary to rotate the second gear 13, a force away from the second gear 13 is applied to the locking member 9, causing the locking part of the locking member 9 to disengage from the teeth of the second gear 13. After the locking member 9 disengages from the second gear 13, the second gear 13 is driven to rotate.

[0056] Optionally, when only a hexagonal nut 11 is provided on the second gear 13, the second gear 13 can only be driven manually. Locking parts 9 can be provided on both sides of the second gear 13. The two locking parts 9 are symmetrically arranged to achieve the purpose of balanced force application and improve the locking effect.

[0057] Optionally, when the second gear 13 is driven by meshing with the threaded rod 15, the locking member 9 is located on the side of the second gear 13 away from the threaded rod 15. The locking member 9 is used to average the force applied by the threaded rod 15 to the second gear 13. The locking member 9 and the threaded rod 15 work together to lock the second gear 13.

[0058] As a specific implementation method of the root opening control device provided by the present invention, please refer to Figure 3 A limiting member 10 is provided on the side of the second gear 13 away from the positioning member 8. The limiting member 10 moves along the length direction of the fixed sleeve 5 and is used to limit the locking member 9.

[0059] A limiting member 10 is also provided on the fixed sleeve 5. The limiting member 10 includes a mounting member provided on the fixed sleeve 5. The mounting member is provided with a horizontal through hole. The limiting rod passes through the through hole and extends towards the side close to the locking member until the end of the limiting rod abuts against the side wall of the locking member, so as to prevent the locking member 9 from moving towards the side close to the second gear 13 and avoid the locking part from contacting the second gear 13.

[0060] Optionally, the mounting component is welded to the fixing sleeve 5, and the mounting component has a through hole with a circular cross-section. The limiting rod is a screw rod, with a nut at the end of the screw rod away from the second gear 13, located on the outside of the mounting component, and a nut at the end of the screw rod closer to the second gear 13, located on the inside of the mounting component. A spring is provided between the mounting component and the nut, and the spring is always in a compressed state. Under the action of the spring, the nut abuts against the outer wall of the mounting component.

[0061] Optionally, a pull ring is provided on the nut.

[0062] As a specific implementation method of the root opening control device provided by the present invention, please refer to Figure 5 The telescopic assembly includes several fixed sleeves 5 connected in sequence, with adjacent fixed sleeves 5 connected by a flange.

[0063] To facilitate reuse, a flange 18 is provided at the end of the fixed sleeve 5. In use, multiple fixed sleeves 5 can be assembled together, and the length of the telescopic component can be adjusted by controlling the extension rod 6 inside the frontmost and rearmost fixed sleeves 5.

[0064] The extension rod 6 located in the middle of the fixing sleeve 5 is detachable. Multiple fixing sleeves 5 are connected in sequence, and the extension rod 6 can be installed only in the frontmost and rearmost fixing sleeves 5, which reduces the length of the extension rod 6 and reduces costs.

[0065] As a specific implementation method of the root opening control device provided by the present invention, please refer to Figure 1 The two support members 2 located on the same corner adjustment assembly are set at right angles, and a detachable right-angle reinforcing rib is provided between the two support members 2.

[0066] Optionally, the two support members 2 are arranged at right angles and abut against the inner wall of the tower foot. A right-angle reinforcing rib is provided between the two support members 2 and the right-angle reinforcing rib is fixed to the two support members 2 with screws.

[0067] Optionally, the right-angle reinforcing ribs can be L-shaped plates or triangular plates.

[0068] As a specific implementation method of the root opening control device provided by the present invention, please refer to Figure 1 At least two sets of parallel telescopic components are provided between two support members 2 located on the same corner adjustment assembly, and a strut 3 is vertically connected between two adjacent telescopic components.

[0069] The inner side of the support member 2 is provided with multiple mounting parts, which may be hinged lugs 7. At least two parallel telescopic components are arranged between the two support members 2, and the telescopic components are arranged at an angle to the length direction of the support member 2, for supporting and adjusting the angle of the support member 2.

[0070] A strut 3 is installed between the two telescopic components to strengthen the connection strength of the telescopic components and increase the support strength of the support member 2.

[0071] Optionally, the support member 2 is provided with at least three hinged lugs 7, and telescopic components are provided on the two hinged lugs 7 closest to the corner, so that the telescopic components and the two support members 2 form a triangle. The third hinged lug 7 is connected to the support members 2 of other tower legs by means of the telescopic components.

[0072] A root opening control method is also provided, which employs the aforementioned root opening control device and includes the following steps:

[0073] S1. Install the two connectors 1 at the ends of the two extension rods 6 respectively; fix the two connectors 1 on the two adjacent tower legs and fix the locking parts 9.

[0074] S2. Repeat step S1 to install root opening control devices between all towers;

[0075] S3. When the hoisting tower is ready to be in place, open the locking part 9 and adjust the length of the telescopic component.

[0076] Specifically, two connectors 1 are respectively installed on the extension rods at both ends of the same telescopic assembly; then, by moving the extension rods, the ends of the two connectors 1 are fixed to the two adjacent tower legs. After fixing, the locking part 9 is fixed, and the pointed end of the locking part on the locking part 9 abuts between two teeth on the second gear 13 on the telescopic assembly, preventing the second gear 13 from rotating and thus preventing the extension rod from extending or shortening. Then, the above steps are repeated, and root opening control devices are set between the two adjacent tower legs; the iron tower is hoisted, and when the iron tower is in place, it is observed whether it can be placed on the placement point. If not, the locking parts 9 at the corresponding positions are opened, the distance between the tower legs is adjusted, and the correct shape of the tower legs is completed.

[0077] The root opening control method provided by this invention, compared with the prior art, adopts the aforementioned root opening control device and has all the beneficial effects of the aforementioned root opening control device; it overcomes the problems of insufficient support between tower legs causing deformation of tower legs during hoisting, and the difficulty in adjusting the deformed tower legs, which leads to difficulties in installing the tower legs in place; thereby achieving the effect of increasing the support between tower legs and real-time adjustment of deformed tower legs, and improving the installation efficiency of the iron tower.

[0078] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A root-opening control device, characterized in that, include: The length adjustment assembly includes a telescopic component and connectors located at both ends of the telescopic component, with the two connectors respectively connected to the two tower legs of the iron tower; The corner adjustment assembly includes two support members that are angled and abut against two adjacent inner sidewalls of the tower foot. The support members are detachably connected to the connector. The inner side of the support members is provided with a plurality of connecting parts for connecting the telescopic assembly. The two support members are angled together to support the corner of the tower foot. The connector includes a horizontal plate and a vertical plate connected vertically. The horizontal plate is connected to the end of the telescopic assembly, and the vertical plate is attached to the outside of the tower foot. The vertical plate is connected to the support member to limit the tower foot to the outside of the support member. Both the support member and the connector have multiple bolt holes, and the support member and the connector are connected to each other or to the tower foot by means of bolts. The telescopic component includes: A fixed sleeve has two extension rods slidably connected inside it. Both extension rods are slidably arranged along the length direction of the fixed sleeve. The two extension rods extend outward from both ends of the fixed sleeve and are respectively connected to the two connectors. Toothed plates are installed on opposite sides of the two extension rods. The gear set includes a rotating shaft passing through the fixed sleeve and a first gear and a second gear sleeved on the rotating shaft. The first gear is located inside the fixed sleeve, and the second gear is located outside the fixed sleeve. The first gear meshes with the toothed plates on the two extension rods simultaneously. The rotation of the first gear drives the extension rods to move in opposite directions. A locking member is rotatably connected to the fixed sleeve. The locking member is located on one side of the second gear. The locking member is provided with a locking part, which abuts against the two adjacent teeth of the second gear to prevent the second gear from rotating. The fixed sleeve is provided with a positioning element, which is located on the side away from the second gear at the hinge axis between the locking element and the fixed sleeve. The positioning element and the locking element are connected by an elastic element. A limiting member is provided on the side of the second gear away from the positioning member. The limiting member moves along the length direction of the fixed sleeve to limit the locking member.

2. The root opening control device as described in claim 1, characterized in that, The telescopic assembly includes a plurality of fixed sleeves connected in sequence, with adjacent fixed sleeves connected by a flange.

3. The root opening control device as described in claim 1, characterized in that, The two supports located on the same corner adjustment assembly are arranged at right angles, and a detachable right-angle reinforcing rib is provided between the two supports.

4. The root opening control device as described in claim 1, characterized in that, At least two sets of parallel telescopic components are provided between two supports located on the same corner adjustment assembly, and a strut is vertically connected between two adjacent telescopic components.

5. A root opening control method, employing the root opening control device as described in any one of claims 1-4, characterized in that, Includes the following steps: S1. Install the two connectors at the ends of the two extension rods respectively; fix the two connectors to the two adjacent tower legs and secure the locking parts; S2. Repeat step S1 to install root opening control devices between all towers; S3. When the hoisting tower is ready to be in place, open the locking mechanism and adjust the length of the telescopic assembly.

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