A bracing structure
Patent Information
- Application Number
- CN202522106420.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-29
- Publication Date
- 2026-10-23
- Estimated Expiration
- 2035-09-29
AI Technical Summary
[0004]1、刚性连接适应性差
[0041]本实用新型的一种拉结结构,通过第一连接组件为连接杆的一端提供多向自适应偏转角度,第二连接组件为连接杆的另一端提供多向自适应偏转角度,使本实用新型的拉结结构在使用时,能够吸收待拉结结构因温度变形、施工误差或荷载作用产生的位移,相较于传统的刚性固定方式,能够有效降低待拉结结构的开裂风险,以及防止待拉结结构倾斜变形,无需频繁进行人工校正。
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Figure CN224885141U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of tie structure technology, and specifically relates to a tie structure. Background Technology
[0002] During elevator shaft construction, scaffolding is typically erected to assist workers. When erecting scaffolding, tie structures are used to secure it. The tie structure between the elevator shaft scaffolding and the PC (Precast Concrete) structure uses flexibly adjustable connecting components to tightly connect the scaffolding and the PC structure. This high-strength connection effectively resists horizontal loads and overturning moments generated during construction, acting like a sturdy "bond" to ensure the overall stability of the scaffolding system and prevent safety hazards such as swaying and tilting due to uneven stress. Furthermore, its adjustable characteristics allow for precise adaptation to installation errors and positional differences in the precast PC components, acting like a joint with "elastic adaptability." While ensuring a firm connection, it provides space for fine-tuning and calibration during construction. This enhances construction safety while ensuring the efficiency and reliability of the collaborative operation between the PC structure and the scaffolding, creating a double line of defense for the safety and quality of building construction.
[0003] However, traditional tie structures often have the following shortcomings:
[0004] 1. Rigid connections have poor adaptability.
[0005] The use of welding or bolts for rigid fixing cannot absorb the small displacements (above ±5mm) of PC components caused by temperature deformation, construction errors or loads, leading to stress concentration, increased risk of surface cracking of PC boards (commonly around nodes), and scaffolding prone to tilting and deformation, requiring frequent manual correction.
[0006] 2. Low adjustment efficiency
[0007] The single-threaded adjusting rod needs to be rotated many times to complete the length adjustment, which takes a long time and is inefficient in complex construction scenarios, thus delaying the construction period.
[0008] 3. Disassembly and assembly are complex and rely on tools.
[0009] Traditional anchoring requires on-site drilling to insert chemical anchors or welding, and disassembly requires cutting or violent removal, which damages the structural integrity of the PC board and results in high labor costs. Utility Model Content
[0010] To make the connection of socket-type plates easier and faster during construction, this utility model provides a tie structure.
[0011] The technical solution of this utility model is as follows:
[0012] A tethering structure, comprising:
[0013] Embedded parts are used to be installed on the first structure to be connected;
[0014] The first connecting component is used for detachable connection with the embedded part;
[0015] The second connecting component is detachably mounted on the second structure to be bonded.
[0016] A connecting rod having opposing first and second ends for adjusting the tie length, wherein the portion of the connecting rod near the first end is used for detachably and angularly deflectable connection to the first connecting assembly, and / or the portion of the connecting rod near the second end is used for detachably and angularly deflectable connection to the second connecting assembly.
[0017] Furthermore, the embedded part includes: an anchoring base, at least a portion of which is used for pre-embedding in the first structure to be connected, the anchoring base being provided with an internal threaded hole along the axial direction;
[0018] The first connection component includes:
[0019] A threaded post is used for threaded connection with the internal threaded hole on the anchoring base;
[0020] The snap-fit base is located at the end of the threaded post furthest from the embedded part.
[0021] Furthermore, the first connection component also includes:
[0022] A first threaded sleeve is used for threaded connection of the portion near the first end of the connecting rod;
[0023] The first universal joint is disposed between the snap-fit base and the first threaded sleeve, and is used to enable the first threaded sleeve to swing, rotate about the connecting rod axis, and deflect in an axis perpendicular to the connecting rod.
[0024] Furthermore, the portion of the anchoring base pre-embedded in the first structure to be connected is provided with a protrusion to increase the anchoring contact area between the anchoring base and the first structure to be connected, and the outer edge of the anchoring base facing the first connecting component is provided with a number of evenly spaced slots.
[0025] The outer edge of the buckle base has a number of elastic claws evenly spaced, which correspond one-to-one with the slots on the anchor base. The elastic claws are provided with arc-shaped protrusions for engaging into the slots to connect to the anchor base.
[0026] Furthermore, the buckle base integrates a pressure sensor and a Bluetooth module;
[0027] The pressure sensor is embedded between the edge of the buckle base and the elastic claw, and is used to monitor the locking force of the elastic claw in real time.
[0028] The Bluetooth module is used to transmit the monitored locking force data.
[0029] Furthermore, the tie structure also includes:
[0030] Audible and visual alarm device, used to issue audible and visual alarms;
[0031] The processing terminal is used to receive and process the data sent by the Bluetooth module, and to control the audible and visual alarm to issue an audible and visual alarm.
[0032] Furthermore, the second connection component includes:
[0033] Connector, used to connect the second structure to be bonded;
[0034] A second threaded sleeve is used for threaded connection of the portion near the second end of the connecting rod;
[0035] The second universal joint is disposed between the connector and the second threaded sleeve, and is used to enable the second threaded sleeve to swing, rotate about the connecting rod axis, and deflect in an axis perpendicular to the connecting rod.
[0036] Furthermore, the connector is U-shaped, with a connecting post extending between its two side walls. The connecting post is secured by a tightening nut located outside the side wall of the connector, for installation on the second structure to be connected; and / or,
[0037] The inner sides of both sides of the connector are provided with anti-slip grooves, and anti-slip strips are embedded in the anti-slip grooves.
[0038] Furthermore, the outer circumferential surface of the connecting rod near the first end is provided with a first threaded section, and the outer circumferential surface of the connecting rod near the second end is provided with a second threaded section. The thread directions of the first threaded section and the second threaded section are opposite, and the pitch of the first threaded section is not equal to the pitch of the second threaded section. When the connecting rod is rotated, it is used to make the first threaded sleeve and the second threaded sleeve approach or move away from each other at different speeds, so as to make coarse and fine adjustments to the tie length.
[0039] Furthermore, the connecting rod has a hollow structure and is filled with damping material.
[0040] The beneficial effects of this utility model are as follows:
[0041] This utility model discloses a tie structure that provides a multi-directional adaptive deflection angle for one end of a connecting rod through a first connecting component and a second connecting component for the other end of the connecting rod. This allows the tie structure to absorb displacements caused by temperature deformation, construction errors, or loads on the structure to be tied during use. Compared to traditional rigid fixing methods, this effectively reduces the risk of cracking in the structure to be tied and prevents tilting and deformation, eliminating the need for frequent manual correction.
[0042] Furthermore, by rotating the connecting rod, the distance between the first connecting component and the second connecting component can be adjusted, that is, the tie length can be adjusted. The adjustment method is simple, efficient, and conducive to speeding up the construction progress.
[0043] Furthermore, the first connecting component, the second connecting component, and the connecting rod are all detachable connections, and the first and second connecting components are also detachable connections to the structure to be connected. When dismantling, there is no need to use tools to cut or forcibly remove them. They can be reused and will not damage the integrity of the structure to be connected, effectively reducing construction and labor costs. Attached Figure Description
[0044] Figure 1 This is a schematic diagram of a tie structure according to an embodiment of the present utility model;
[0045] Figure 2 This is a schematic diagram of the structure of the embedded part in the embodiment of this utility model;
[0046] Figure 3 This is a schematic diagram of the structure of the first connecting component in an embodiment of this utility model;
[0047] Figure 4 This is a schematic diagram of the structure of the second connecting component in an embodiment of this utility model;
[0048] Figure 5 This is a schematic diagram of the connecting column in an embodiment of this utility model.
[0049] In the figure: 1. Embedded part; 101. Anchor base; 102. Internal threaded hole; 103. Protrusion; 104. Slot; 2. First connecting assembly; 201. Threaded post; 202. Snap-on base; 203. First threaded sleeve; 204. First universal joint; 205. Elastic claw; 206. Arc-shaped protrusion; 3. Second connecting assembly; 301. Connector; 302. Second threaded sleeve; 303. Second universal joint; 304. Connecting post; 305. Anti-slip groove; 4. Connecting rod; 401. First threaded section; 402. Second threaded section. Detailed Implementation
[0050] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.
[0051] Example:
[0052] refer to Figures 1 to 5 The tie structure provided in this embodiment includes an embedded part 1, a first connecting component 2, a second connecting component 3 and a connecting rod 4, and may also include an audible and visual alarm and a processing terminal (not shown).
[0053] The embedded part 1 is used to be set on the first tie structure. During the production process of the first tie structure, the embedded part 1 is pre-embedded. In this embodiment, the first tie structure can be the PC structure of the elevator shaft.
[0054] The first connecting component 2 is used to detachably connect to the embedded part 1.
[0055] The second connecting component 3 is detachably mounted on the second tie structure, which in this embodiment can be an elevator shaft scaffold.
[0056] The connecting rod 4 has a first end and a second end opposite to each other and is used to adjust the tie length. The portion of the connecting rod 4 near the first end is used to detachably and at an angle to connect to the first connecting assembly 2, and / or the portion of the connecting rod 4 near the second end is used to detachably and at an angle to connect to the second connecting assembly 3. Preferably, the connecting rod 4 can be made of hollow aluminum alloy tube, which is lightweight, can reduce the load on high-altitude operations, and is corrosion-resistant and has a long service life.
[0057] In this embodiment, a tie structure provides a multi-directional adaptive deflection angle for one end of the connecting rod 4 through a first connecting component 2 and a second connecting component 3, which provides a multi-directional adaptive deflection angle for the other end of the connecting rod 4. This allows the tie structure of this invention to absorb the displacement of PC components caused by temperature deformation, construction errors, or load during use. Compared with traditional rigid fixing methods, it can effectively reduce the risk of cracking of PC structures and prevent scaffold tilting and deformation, eliminating the need for frequent manual correction.
[0058] Furthermore, by rotating the connecting rod 4, the distance between the first connecting component 2 and the second connecting component 3 can be adjusted, that is, the tie length can be adjusted. The adjustment method is simple, efficient, and conducive to speeding up the construction progress.
[0059] Furthermore, the first connecting component 2, the second connecting component 3, and the connecting rod 4 are all detachable connections, and the first connecting component 2 and the second connecting component 3 are also detachable connections to the structure to be connected. When dismantling, there is no need to use tools to cut or forcibly remove them. They can be reused and will not damage the integrity of the PC structure, effectively reducing construction costs and labor costs.
[0060] In a preferred embodiment, the embedded part 1 includes: an anchoring base 101, at least a portion of which is used for pre-embedding in the first structure to be connected, and the anchoring base 101 is provided with an internal threaded hole 102 along the axial direction.
[0061] The portion of the anchor base 101 pre-embedded in the first structure to be connected is provided with a protrusion 103 to increase the anchoring contact area between the anchor base 101 and the first structure to be connected. The protrusion 103 is hook-shaped, and the protrusion height is preferably 3-5mm, which can enhance the bond between the anchor base 101 and the concrete. The pre-embedded depth of the anchor base 101 is 1 / 3-1 / 2 of the thickness of the PC structure, ensuring that the anchor base 101 is integrated with the structure during the pouring of the PC structure, avoiding damage caused by drilling holes in the PC structure later, which would affect the strength of the PC structure. In addition, the outer edge of the anchor base 101 facing the first connecting component 2 is provided with several evenly spaced slots 104.
[0062] The first connecting assembly 2 includes a threaded post 201, a snap-fit base 202, a first threaded sleeve 203, and a first universal joint 204.
[0063] The threaded post 201 is used for threaded connection with the internal threaded hole 102 on the anchor base 101.
[0064] The snap-fit base 202 is located at the end of the threaded post 201 away from the embedded part 1. Several elastic claws 205 are evenly spaced along the outer edge of the snap-fit base 202, corresponding one-to-one with the slots 104 on the anchoring base 101. The elastic claws 205 can be made of spring steel sheets and have arc-shaped protrusions 206 for engaging with the slots 104 to connect to the anchoring base 101. The slots 104 are trapezoidal, with the bottom width greater than the opening width, forming a self-locking slope to prevent the elastic claws 205 from dislodging from the slots 104 under lateral force. In use, pressing the elastic claws 205... 5. The arc-shaped protrusion 206 is embedded into the slot 104 to achieve tool-free locking. It can be reset by its own elasticity by being pushed outward. The arc-shaped protrusion 206 is locked into the slot 104, providing mechanical interlocking for the elastic claw 205 and the anchor base 101, which improves the resistance to vibration and loosening. Construction personnel only need to press / push the elastic claw 205 with one hand to complete the locking / unlocking. Moreover, the elastic claw 205 compensates for the torque attenuation caused by vibration through mechanical self-locking. When disassembling, only the claw needs to be pushed and the threaded column 201 needs to be reversed. The whole process is tool-free, the component reuse rate is improved, and the damage to the PC structure caused by traditional cutting is eliminated.
[0065] The first threaded sleeve 203 is used for threaded connection of the part near the first end of the connecting rod 4.
[0066] Reference Figure 4 The first universal joint 204 is disposed between the snap-fit base 202 and the first threaded sleeve 203, which enables the first threaded sleeve 203 to swing, rotate about the axis of the connecting rod 4, and deflect in the axis perpendicular to the connecting rod 4. The first universal joint 204 allows the first threaded sleeve 203 to self-adaptively deflect in multiple directions within a range of ±8°, absorbing displacement caused by scaffold vibration or PC structure installation errors.
[0067] The first universal joint 204 is divided into two parts. Figure 4 The right side of the first universal joint 204 is rotatably connected to the snap-fit base 202, and the left side of the first universal joint 204 is connected to the first threaded sleeve 203. A vertical connecting post is provided on the right side of the first universal joint 204, and a horizontal connecting post is provided on the left side of the first universal joint 204. The horizontal connecting post passes through the vertical connecting post and forms a gap with the right side, so that the first threaded sleeve 203 can swing, rotate around the axis of the connecting rod 4, and deflect in an axis perpendicular to the connecting rod 4.
[0068] In a preferred embodiment, a pressure sensor and a Bluetooth module (not shown) are integrated on the snap-fit base 202.
[0069] The pressure sensor is embedded between the edge of the buckle base 202 and the elastic claw 205 to monitor the locking force of the elastic claw 205 in real time. The pressure sensor can be a thin-film pressure sensor, which is small in size and thin in thickness and is suitable for confined working environments.
[0070] The Bluetooth module is used to transmit the monitored locking force data. The Bluetooth module can be a low-power Bluetooth module.
[0071] Audible and visual alarms are used to issue audible and visual alarms.
[0072] The processing terminal is used to receive and process data sent by the Bluetooth module, and to control the audible and visual alarm to issue an alarm. Specifically, when the pressure sensor detects that the locking force of the elastic claw 205 is lower than the set threshold, an audible and visual alarm is triggered to remind staff to perform timely maintenance. Furthermore, the pressure sensor continuously provides feedback on the locking force to avoid the lag of traditional manual inspections. When wind or vibration causes the locking force to decay to a critical value (the critical value can be set to 3kN), it promptly reminds staff to reinforce the device and prevent collapse accidents, thus achieving proactive prevention and control of safety risks.
[0073] Reference Figure 3 In a preferred embodiment, the second connecting assembly 3 includes a connector 301, a second threaded sleeve 302, and a second universal joint 303.
[0074] The connector 301 is used to connect the second structure to be connected. The connector 301 is U-shaped, and a connecting post 304 runs through the space between its two side walls. The connecting post 304 is fixed by a tightening nut located outside the side wall of the connector 301 and is used to install on the second structure to be connected. Anti-slip grooves 305 are provided on the inner sides of both side walls of the connector 301. The anti-slip grooves 305 can be V-shaped grooves with a depth of 2-3 mm and a bottom angle of 60°, which helps to increase the pressure on the contact surface. Anti-slip strips are embedded in the anti-slip grooves 305. The anti-slip strips can be made of high-friction rubber strips with a friction coefficient ≥0.8 and a slippage of <1 mm after clamping. Preferably, 60-90A rubber can be used, which combines elastic deformation and compressive strength to adapt to uneven surfaces of the scaffolding steel pipes.
[0075] The second threaded sleeve 302 is used for threaded connection of the part near the second end of the connecting rod 4.
[0076] The second universal joint 303 is disposed between the connector 301 and the second threaded sleeve 302, and is used to enable the second threaded sleeve 302 to swing, rotate about the axis of the connecting rod 4, and deflect in the axis perpendicular to the connecting rod 4. The second universal joint 303 allows the second threaded sleeve 302 to self-deflect in multiple directions within a range of ±8°, absorbing displacement caused by scaffold vibration or PC structure installation errors.
[0077] The second universal joint 303 has a basically the same structure as the first universal joint 204. Specifically, the second universal joint 303 is divided into two parts. Figure 3 The right side of the second universal joint 303 is rotatably connected to the second threaded sleeve 302, and the left side of the second universal joint 303 is connected to the connector 301. A vertical connecting post is provided on the right side of the second universal joint 303, and a horizontal connecting post is provided on the left side of the second universal joint 303. The horizontal connecting post passes through the vertical connecting post and forms a gap with the right side, so that the second threaded sleeve 302 can swing, rotate around the axis of the connecting rod 4, and deflect in an axis perpendicular to the connecting rod 4.
[0078] Reference Figure 5 In a preferred embodiment, the outer circumferential surface of the connecting rod 4 near the first end is provided with a first threaded section 401, and the outer circumferential surface of the connecting rod 4 near the second end is provided with a second threaded section 402. The thread directions of the first threaded section 401 and the second threaded section 402 are opposite, and the pitch of the first threaded section 401 is not equal to the pitch of the second threaded section 402. When the connecting rod 4 is rotated, it is used to make the first threaded sleeve 203 and the second threaded sleeve 302 move closer or further apart at different speeds, so as to perform coarse and fine adjustments to the tie length. Because the thread directions are opposite, the first threaded sleeve 203 and the second threaded sleeve 302 can move closer or further apart. And because the pitches on the first threaded section 401 and the second threaded section 402 are different, the first threaded section 401... The threaded sleeve 203 and the second threaded sleeve 302 move at different speeds. The faster movement speed allows for quick coarse adjustment of the knot length, while the slower movement speed allows for precise fine adjustment of the knot length. This results in high adjustment efficiency, and the coarse and fine adjustments work together to achieve high accuracy. Specifically, during coarse adjustment, the connecting rod 4 is rotated so that the end with the larger pitch rotates relative to the first threaded sleeve 203 or the second threaded sleeve 402, while the end with the smaller pitch does not rotate relative to it. This allows for faster adjustment of the knot length and achieves rapid coarse adjustment. During fine adjustment, the connecting rod 4 is rotated so that the end with the smaller pitch rotates relative to the first threaded sleeve 203 or the second threaded sleeve 402, while the end with the larger pitch does not rotate relative to it. This allows for slower adjustment of the knot length and achieves precise fine adjustment.
[0079] Connecting rod 4 has a hollow structure and is filled with damping material. The damping material can be polyurethane damping filler. The double universal joint design, combined with the damping filler, can dynamically absorb scaffold vibration, temperature deformation and PC board installation errors, avoiding PC structure cracking or connection failure caused by stress concentration. Compared with traditional rigid connection structures, it can effectively reduce the risk of cracking.
[0080] During the prefabrication stage of the PC panel, the anchor base 101 is pre-embedded in the panel at standardized intervals to ensure that its barbed protrusion 103 is fully bonded to the concrete. During construction, the threaded post 201 on the snap-fit base 202 is screwed into the internal threaded hole 102 of the anchor base 101, while pressing the four elastic claws 205 on the outside of the anchor base 101, so that its arc-shaped protrusion 206 is embedded into the slot 104 of the anchor base 101, completing the tool-free quick locking of the first connecting component 2. Subsequently, one end of the connecting rod 4 is screwed into the first threaded sleeve 203, and the other end is screwed into the second threaded sleeve 302 on the second connecting component 3. By rotating the connecting rod 4, the coarse and fine adjustments of the tie length are achieved by using the differential speed adjustment of the reverse threads at both ends. After adjustment, the connector 301 is put on the scaffold upright and the connecting post 304 is inserted. Tightening the nuts on both sides drives the two side walls of the connector 301 to move inward, cooperating with the anti-slip strip to clamp the bracket. During construction, the pressure sensor monitors the locking force of the elastic claw 205 in real time. When the locking force is less than 3kN, data is sent through the Bluetooth module, the control terminal receives the data and triggers an audible and visual alarm. When disassembling, simply push the elastic claw 205 outward to release the locking of the slot 104 and rotate the threaded column 201 in the opposite direction to separate the first connecting component 2 from the embedded part 1. No special tools are required throughout the process, and disassembly can be completed quickly in a short time.
[0081] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.
Claims
1. A tie structure, characterized in that, include: Embedded part (1) is used to be installed on the first structure to be connected; The first connecting component (2) is used to detachably connect to the embedded part (1); The second connecting component (3) is detachably mounted on the second structure to be connected; A connecting rod (4) having a first end and a second end opposite to each other and for adjusting the tie length, wherein the portion of the connecting rod (4) near the first end is used to detachably and at an angle to connect the first connecting assembly (2), and / or the portion of the connecting rod (4) near the second end is used to detachably and at an angle to connect the second connecting assembly (3).
2. The tethering structure as described in claim 1, characterized in that, The embedded part (1) includes: an anchor base (101), at least a portion of which is used for pre-embedding in the first structure to be tied, wherein the anchor base (101) is provided with an internal thread hole (102) along the axial direction; The first connection component (2) includes: A threaded post (201) is used for threaded connection with an internal threaded hole (102) on the anchor base (101); The snap-fit base (202) is located at the end of the threaded post (201) away from the embedded part (1).
3. The tethering structure as described in claim 2, characterized in that, The first connection component (2) further includes: A first threaded sleeve (203) is used for threaded connection of the portion near the first end of the connecting rod (4); A first universal joint (204) is disposed between the snap-fit base (202) and the first threaded sleeve (203) for enabling the first threaded sleeve (203) to swing, rotate about the connecting rod (4) axially, and deflect in an axial direction perpendicular to the connecting rod (4).
4. The tethering structure as described in claim 2, characterized in that, The part of the anchor base (101) pre-embedded in the first structure to be connected is provided with a protrusion (103) to increase the anchoring contact area between the anchor base (101) and the first structure to be connected, and the outer edge of the anchor base (101) facing the first connecting component (2) is provided with a number of evenly spaced slots (104). The outer edge of the snap-fit base (202) has a number of elastic claws (205) evenly spaced, which correspond one-to-one with the slots (104) on the anchor base (101). The elastic claws (205) are provided with arc-shaped protrusions (206) for snapping into the slots (104) to connect to the anchor base (101).
5. The tethering structure as described in claim 4, characterized in that, The buckle base (202) integrates a pressure sensor and a Bluetooth module; The pressure sensor is embedded between the edge of the buckle base (202) and the elastic claw (205) for real-time monitoring of the locking force of the elastic claw (205); The Bluetooth module is used to transmit the monitored locking force data.
6. The tethering structure as described in claim 5, characterized in that, Also includes: Audible and visual alarm device, used to issue audible and visual alarms; The processing terminal is used to receive and process the data sent by the Bluetooth module, and to control the audible and visual alarm to issue an audible and visual alarm.
7. The tethering structure as described in claim 1, characterized in that, The second connection component (3) includes: Connector (301) is used to connect the second structure to be bonded; The second threaded sleeve (302) is used for threaded connection of the portion near the second end of the connecting rod (4); A second universal joint (303) is disposed between the connector (301) and the second threaded sleeve (302) for enabling the second threaded sleeve (302) to swing, rotate about the connecting rod (4) axially, and deflect in an axial direction perpendicular to the connecting rod (4).
8. The tethering structure as described in claim 7, characterized in that, The connector (301) is U-shaped, with a connecting post (304) extending between its two side walls. The connecting post (304) is fixed by a tightening nut located outside the side wall of the connector (301) and is used for installation on the second structure to be connected; and / or, The inner sides of both sides of the connector (301) are provided with anti-slip grooves (305), and anti-slip strips are embedded in the anti-slip grooves (305).
9. The tethering structure as described in claim 1, characterized in that, The connecting rod (4) has a first threaded section (401) on its outer circumferential surface near the first end and a second threaded section (402) on its outer circumferential surface near the second end. The threads of the first threaded section (401) and the second threaded section (402) are opposite in direction, and the pitch of the first threaded section (401) is not equal to the pitch of the second threaded section (402). When the connecting rod (4) is rotated, it is used to make the first threaded sleeve (203) and the second threaded sleeve (302) move closer or further away from each other at different speeds, so as to make coarse and fine adjustments to the tie length.
10. The tethering structure as described in claim 9, characterized in that, The connecting rod (4) is a hollow structure and is filled with damping material.