Insulator subassembly with adjustment function

Abstract

The utility model relates to insulator technical field especially is related to a kind of insulator assembly with adjusting function, specifically includes: insulator main body, upper and lower ends are respectively provided with upper connecting part and lower connecting part, sleeve is sleeved in the sleeve rod outer, and the sleeve rod is slidably connected with the sleeve, the top of the sleeve is connected with the upper connecting part, the bottom of the sleeve rod is connected with insulator main body, the meshing portion is set on the sleeve rod, the locking part is connected with the inner wall of the sleeve by elastic element, the elastic element is used to provide pre-tightening force for the locking part so that the locking part has the tendency of engaging with the meshing portion, drive assembly is set on the side wall of the sleeve, and is connected with the locking part, solve the problem that the existing insulator assembly cannot be flexibly adapted to the distance between tower and cable.

Description

Technical Field

[0001] This utility model relates to the field of insulator technology, and in particular to an insulator assembly with adjustment function. Background Technology

[0002] In power transmission lines, insulator assemblies are key equipment connecting towers and cables, and their core function is to provide reliable electrical insulation and mechanical fixation. Currently, the structural length of existing insulator assemblies (such as disc suspension insulator strings or composite insulators) is usually fixed.

[0003] However, this fixed-length structure reveals significant limitations when faced with variations in the distance between the tower and the cable due to terrain undulations, differences in tower specifications, or changes in line design. During installation, construction workers often cannot fine-tune the effective length of the insulator assembly, leading to excessive installation stress or an inability to precisely control the safe distance, thus increasing construction difficulty and limitations.

[0004] Therefore, how to provide an insulator assembly with adjustable function to overcome the drawbacks of the existing fixed-length structure, so that the assembly can adapt to changes in the distance between the tower and the cable, and ensure the accuracy and reliability of the installation, is an urgent technical problem to be solved. Utility Model Content

[0005] This invention provides an insulator assembly with an adjustable function, which solves the problem that existing insulator assemblies cannot flexibly adapt to changes in the distance between towers and cables.

[0006] This utility model provides an insulator assembly with an adjustable function, comprising: an insulator body, wherein an upper connecting part and a lower connecting part are respectively provided at the upper and lower ends of the body, the upper connecting part being used to connect with a tower, and the lower connecting part being used to connect with a cable; An adjusting assembly includes a sleeve rod and a sleeve, the sleeve being sleeved outside the sleeve rod and the sleeve rod being slidably connected to the sleeve, the top end of the sleeve being connected to the upper connecting part, and the bottom end of the sleeve rod being connected to the insulator body; A locking assembly includes an engaging portion and a locking member. The engaging portion is disposed on the sleeve rod, and the locking member is connected to the inner wall of the sleeve via an elastic element. The elastic element is used to provide a preload force to the locking member so that the locking member tends to engage with the engaging portion. A drive assembly is disposed on the side wall of the sleeve and connected to the locking member. The drive assembly is used to drive the locking member to engage or disengage with the engaging part. When the drive assembly disengages the locking member from the engaging portion, the sleeve can slide relative to the sleeve to adjust its length. When the drive assembly releases the operation on the locking member, the locking member engages and locks with the engaging portion under the action of the elastic element.

[0007] In one possible implementation, the sleeve sidewall is provided with a through groove in the axial direction, the engaging part is a continuous serrated band extending along the axial direction of the sleeve, and the continuous serrated band is located in the through groove.

[0008] In one possible implementation, the locking element is a self-locking wedge that is adapted to the continuous toothed band.

[0009] In one possible implementation, the drive assembly includes a movable plate, a pull rope, and a pull ring. The inner wall of the sleeve is provided with a receiving groove. One sidewall of the movable plate is connected to the self-locking wedge, and the other sidewall of the movable plate is connected to the bottom wall of the receiving groove through the elastic element. One end of the pull rope is connected to the sidewall of the movable plate, and the other end of the pull rope passes through the elastic element and a through hole on the sidewall of the sleeve and is connected to the pull ring.

[0010] In one possible implementation, a guide groove is provided in the receiving groove, and a guide rod adapted to the guide groove is provided at a corresponding position of the moving plate.

[0011] In one possible implementation, the open end of the guide groove is provided with an annular shoulder, and the moving end of the guide rod is provided with a limiting ring. The limiting ring cooperates with the annular shoulder to prevent the moving plate from detaching.

[0012] In one possible implementation, the movable plate is connected to one end of the pull rope via a fixed rod, and when the self-locking wedge is interlocked with the continuous toothed band, the free end of the fixed rod is at least partially located within the through hole.

[0013] In one possible implementation, the pull ring is connected to one end of the pull rope via a limiting plate.

[0014] In one possible implementation, a limiting block is provided at the bottom of the inner wall of the sleeve, and a limiting groove adapted to the limiting block is provided on the sleeve rod, and the limiting block can slide along the limiting groove.

[0015] In one possible implementation, the inclined surface of the self-locking wedge has the same inclination angle as the inclined surface of the continuous sawtooth band, and satisfies the self-locking condition.

[0016] The beneficial effects of this invention are as follows: In the locked state, the locking component of the locking assembly, under the preload of the elastic element, engages with the meshing part on the sleeve rod, fixing the relative position of the sleeve rod and the sleeve. When length adjustment is required, the drive assembly controls the locking component to move against the preload of the elastic element, disengaging the locking component from the meshing part. At this time, the operator can apply external force to make the sleeve rod slide relative to the sleeve, thereby changing the overall height of the insulator body. After adjustment, the drive assembly stops controlling the locking component, and the locking component resets under the restoring force of the elastic element, re-engaging and locking with the meshing part, thus changing the overall height of the insulator body. Through the cooperation of the locking assembly, drive assembly, and elastic element, the relative position of the sleeve and the sleeve rod is changed, thereby changing the overall height of the insulator body. This solves the problem that existing insulator assemblies cannot flexibly adapt to changes in the distance between towers and cables. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a perspective view of an insulator assembly with an adjustment function according to the present invention; Figure 2 This is a front view of an insulator assembly with an adjustment function according to the present invention; Figure 3 This is an exploded cross-sectional perspective view of the adjustment component of an insulator assembly with adjustment function according to the present invention. Figure 4 This is a cross-sectional front view of the adjustment component of an insulator assembly with adjustment function according to the present invention; Figure 5 This is an enlarged perspective view of region B of an insulator assembly with adjustment function according to this utility model; Figure 6 This is an enlarged perspective view of region A of an insulator assembly with adjustment function according to this utility model.

[0019] Explanation of reference numerals in the attached figures: 1. Insulator body; 2. Upper connecting part; 3. Lower connecting part; 4. Cable; 5. Adjusting assembly; 501. Sleeve rod; 502. Sleeve; 6. Locking assembly; 601. Continuous toothed band; 602. Self-locking wedge; 7. Elastic element; 8. Drive assembly; 801. Moving plate; 802. Pull rope; 803. Pull ring; 9. Through slot; 10. Receiving slot; 11. Through hole; 12. Guide slot; 13. Guide rod; 14. Annular shoulder; 15. Limiting ring; 16. Fixing rod; 17. Limiting plate; 18. Limiting block; 19. Limiting groove. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, it should be understood that 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. Therefore, a feature defined as "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] See Figures 1 to 6This utility model provides an insulator assembly with an adjustable function, comprising: an insulator body 1, with an upper connecting part 2 and a lower connecting part 3 respectively provided at its upper and lower ends; the upper connecting part 2 is used to connect with a tower, and the lower connecting part 3 is used to connect with a cable 4; an adjusting assembly 5, including a sleeve rod 501 and a sleeve 502, the sleeve 502 being sleeved outside the sleeve rod 501 and slidably connected to the sleeve rod 501 and the sleeve 502; the top end of the sleeve 502 being connected to the upper connecting part 2; and the bottom end of the sleeve rod 501 being connected to the insulator body 1; and a locking assembly 6, including an engaging part and a locking element, the engaging part being provided with... On the sleeve 501, the locking member is connected to the inner wall of the sleeve 502 via the elastic element 7. The elastic element 7 is used to provide a preload force to the locking member so that the locking member tends to engage with the engaging part. The drive assembly 8 is disposed on the side wall of the sleeve 502 and connected to the locking member. The drive assembly 8 is used to drive the locking member to engage or disengage with the engaging part. When the drive assembly 8 disengages the locking member from the engaging part, the sleeve 501 can slide relative to the sleeve 502 to adjust the length. When the drive assembly 8 releases the operation on the locking member, the locking member engages and locks with the engaging part under the action of the elastic element 7.

[0024] Specifically, under normal locking conditions, the locking member of the locking assembly 6, under the preload of the elastic element 7, engages with the meshing part on the sleeve rod 501, thereby fixing the relative position of the sleeve rod 501 and the sleeve 502. When length adjustment is required, the drive assembly 8 is operated. The drive assembly 8 actuates and drives the locking member to move against the preload of the elastic element 7, causing the locking member to disengage from the meshing part. At this time, the operator can apply external force to make the sleeve rod 501 slide relative to the sleeve 502, thereby changing the suspension height of the insulator body 1. After adjustment, the operation of the drive assembly 8 is removed, and the locking member quickly resets under the restoring force of the elastic element 7, re-engaging and locking with the meshing part to fix the new length.

[0025] The above steps enable rapid and reliable adjustment and locking of the insulator assembly length. The locking relationship between the locking element and the engaging part is controlled by the drive assembly 8, making operation simple. The automatic locking of the locking element and the engaging part is achieved using the elastic element 7, ensuring the overall reliability and stability of the device under normal conditions.

[0026] In some embodiments, the sleeve 501 has an axially provided through groove 9 on its side wall, and the engaging part is a continuous serrated band 601 extending axially along the sleeve 501, and the continuous serrated band 601 is located in the through groove 9.

[0027] The through groove 9 axially provided on the side wall of the sleeve 501 provides space for the arrangement of the engaging parts and the engagement of the locking element. This ensures that the movement of the sleeve 501 within the sleeve 502 is not affected by the continuous toothed band 601. The continuous toothed band 601 extends axially along the sleeve 501 and is located within the through groove 9. When the locking element engages with the continuous toothed band 601, the locking element is embedded in the through groove 9 and engages with the continuous toothed band 601.

[0028] While ensuring a compact structure, it avoids interference or damage that might be caused by exposed structures. The continuous toothed band 601 allows locking at any position throughout the entire stroke of the sleeve 501, providing great adjustment flexibility.

[0029] In some embodiments, the locking element is a self-locking wedge 602, which is adapted to the continuous toothed band 601.

[0030] The locking component employs a self-locking wedge 602, whose wedge-shaped surface is adapted to the serrated bevel of the continuous serrated band 601. During locking, the self-locking wedge 602, under the preload of the elastic element 7 and the tension of the sleeve rod 501, weaves into the teeth of the continuous serrated band 601, achieving self-locking. When the insulator assembly is subjected to downward tension, the engagement between the self-locking wedge 602 and the continuous serrated band 601 becomes increasingly tight, greatly enhancing the reliability of locking and its resistance to impact and vibration.

[0031] In some embodiments, the drive assembly 8 includes a movable plate 801, a pull rope 802, and a pull ring 803. The inner wall of the sleeve 502 is provided with a receiving groove 10. One side wall of the movable plate 801 is connected to a self-locking wedge 602, and the other side wall of the movable plate 801 is connected to the bottom wall of the receiving groove 10 through an elastic element 7. One end of the pull rope 802 is connected to the side wall of the movable plate 801, and the other end of the pull rope 802 passes through the elastic element 7 and the through hole 11 on the side wall of the sleeve 502 and is connected to the pull ring 803.

[0032] The elastic element 7 is preferably a spring capable of providing preload. The drive assembly 8 is operated via a pull rope 802 and a pull ring 803. When it is necessary to loosen the lock, the operator pulls the pull ring 803 outward. The pull ring 803 pulls the moving plate 801 within the receiving groove 10 through the pull rope 802, overcoming the preload of the elastic element 7. The moving plate 801 drives the self-locking wedge 602 connected to it to move synchronously, causing the self-locking wedge 602 to separate from the continuous toothed belt 601. After the pull ring 803 is released, the elastic element 7 pushes the moving plate 801 to reset, and the moving plate 801 drives the self-locking wedge 602 to re-wedge into the continuous toothed belt 601.

[0033] In some embodiments, a guide groove 12 is provided in the receiving groove 10, and a guide rod 13 adapted to the guide groove 12 is provided at the corresponding position of the moving plate 801.

[0034] During the movement of the movable plate 801, the guide rod 13 fixed to the movable plate 801 slides along the guide groove 12 provided in the receiving groove 10, providing precise guidance for the movement of the movable plate 801 and the self-locking wedge 602. The cooperation between the guide rod 13 and the guide groove 12 ensures that the movable plate 801 can only move smoothly in a preset direction (i.e., the locking / unlocking direction), preventing the movable plate 801 and the self-locking wedge 602 from deflecting or getting stuck.

[0035] In some embodiments, the open end of the guide groove 12 is provided with an annular shoulder 14, and the moving end of the guide rod 13 is provided with a limiting ring 15. The limiting ring 15 cooperates with the annular shoulder 14 to prevent the moving plate 801 from falling out.

[0036] Specifically, the limiting ring 15 at the moving end of the guide rod 13 cooperates with the annular shoulder 14 at the opening end of the guide groove 12. When the moving plate 801 moves outward to its limit position under the action of the elastic element 7, the limiting ring 15 will contact the annular shoulder 14, thereby restricting the guide rod 13 and the moving plate 801 from continuing to move and preventing them from coming out of the receiving groove 10.

[0037] This ensures that even under extreme conditions, the moving plate 801 and its connected self-locking wedge 602 will not disengage from their normal operating position, thus improving the safety and reliability of the entire assembly.

[0038] In some embodiments, the movable plate 801 is connected to one end of the pull rope 802 via the fixed rod 16, and when the self-locking wedge 602 is interlocked with the continuous toothed band 601, the free end of the fixed rod 16 is at least partially located in the through hole 11.

[0039] The movable plate 801 is connected to the pull rope 802 via the fixed rod 16. When the self-locking wedge 602 and the continuous toothed band 601 are interlocked, the free end of the fixed rod 16 is located in the through hole 11 on the side wall of the sleeve 502. The position of the fixed rod 16 in the through hole 11 can serve as a visual or tactile indicator to indirectly show whether the locking assembly 6 is locked.

[0040] In some embodiments, the pull ring 803 is connected to one end of the pull cord 802 via the limiting plate 17.

[0041] The pull ring 803 is securely connected to the end of the pull rope 802 via a limiting plate 17. The limiting plate 17 is larger than the hole through which the pull rope 802 passes, preventing the pull rope 802 from coming out of the pull ring 803. The limiting plate 17 constitutes a reliable end fixing structure, preventing the pull rope 802 from loosening at the connection point with the pull ring 803 during repeated pulling operations, thus enhancing the durability and safety of the drive assembly 8.

[0042] In some embodiments, a limiting block 18 is provided at the bottom of the inner wall of the sleeve 502, and a limiting groove 19 adapted to the limiting block 18 is provided on the sleeve rod 501, and the limiting block 18 can slide along the limiting groove 19.

[0043] The limiting block 18 at the bottom of the inner wall of the sleeve 502 is embedded in the limiting groove 19 on the sleeve rod 501. When the sleeve rod 501 slides relative to the sleeve 502 to adjust its length, the limiting block 18 slides along the limiting groove 19, restricting the circumferential rotation between the sleeve rod 501 and the sleeve 502. This prevents relative rotation between the sleeve rod 501 and the sleeve 502, thereby ensuring that the through groove 9 and the continuous serrated band 601 inside are always aligned with the self-locking wedge 602, guaranteeing that the locking assembly 6 can always be properly and accurately engaged, and improving operational stability.

[0044] In some embodiments, the inclined surface of the self-locking wedge 602 has the same inclination angle as the inclined surface of the sawtooth strip 601, and satisfies the self-locking condition.

[0045] This causes the self-locking wedge 602 to tighten further under tension, preventing it from disengaging on its own. This ensures that even under normal operating loads, the locking function remains effective despite some reduction in the preload of the elastic element 7, significantly improving safety performance.

[0046] Work process When the length of the insulator assembly needs to be adjusted, the operator pulls the pull ring 803 of the drive assembly 8 outward. The pull ring 803 pulls the moving plate 801 through the pull rope 802. The moving plate 801 overcomes the preload of the elastic element 7 and moves away from the sleeve rod 501 along the guide groove 12 in the receiving groove 10. The moving plate 801 drives the self-locking wedge 602 to move synchronously, causing the self-locking wedge 602 to disengage from the continuous toothed band 601. During this process, the guide rod 13 fixed on the moving plate 801 slides in the guide groove 12. The limiting ring 15 at the end of the guide rod 13 cooperates with the annular shoulder 14 at the opening end of the guide groove 12 to prevent the moving plate 801 from coming off.

[0047] After the self-locking wedge 602 disengages, the locking between the sleeve rod 501 and the sleeve 502 is released. At this time, the operator can apply external force to make the sleeve rod 501 slide axially within the sleeve 502. Meanwhile, the limiting block 18 slides synchronously within the limiting groove 19, thereby changing the total length of the insulator assembly until the required length is reached.

[0048] After adjustment, the operator releases the pull ring 803. The restoring force of the elastic element 7 immediately takes effect, pushing the moving plate 801 to move back towards the sleeve rod 501. The moving plate 801 drives the self-locking wedge block 602 to re-wedge into the corresponding groove of the continuous toothed strip 601, achieving automatic locking. The relative position of the sleeve rod 501 and the sleeve 502 is fixed again, and the insulator assembly returns to its working state at the new length.

[0049] The engagement and disengagement of the locking assembly 6 are controlled by the drive assembly 8, enabling stepless and lockable adjustment of the length of the adjusting assembly 5. Auxiliary structures such as guides, anti-rotation devices, and anti-disengagement devices ensure smooth, aligned, and safe adjustment. The cooperation between the self-locking wedge 602 and the continuous serrated strip 601 provides extremely high locking reliability, allowing this insulator assembly to flexibly adapt to varying distance requirements between the tower and the cable 4.

[0050] In the above embodiments, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0051] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0052] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "method," "specific method," or "some methods," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or method is included in at least one embodiment or method of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or method. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or methods. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or methods described in this specification, as well as the features of different embodiments or methods.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An insulator assembly with an adjustment function, characterized in that, include: The insulator body has an upper connecting part and a lower connecting part at its upper and lower ends, respectively. The upper connecting part is used to connect with the tower, and the lower connecting part is used to connect with the cable. An adjusting assembly includes a sleeve rod and a sleeve, the sleeve being sleeved outside the sleeve rod and the sleeve rod being slidably connected to the sleeve, the top end of the sleeve being connected to the upper connecting part, and the bottom end of the sleeve rod being connected to the insulator body; A locking assembly includes an engaging portion and a locking member. The engaging portion is disposed on the sleeve rod, and the locking member is connected to the inner wall of the sleeve via an elastic element. The elastic element is used to provide a preload force to the locking member so that the locking member tends to engage with the engaging portion. A drive assembly is disposed on the side wall of the sleeve and connected to the locking member. The drive assembly is used to drive the locking member to engage or disengage from the engaging part. When the drive assembly disengages the locking member from the engaging portion, the sleeve can slide relative to the sleeve to adjust its length. When the drive assembly releases the operation on the locking member, the locking member engages and locks with the engaging portion under the action of the elastic element.

2. The insulator assembly with adjustment function according to claim 1, characterized in that, The sleeve rod sidewall is provided with a through groove in the axial direction, and the meshing part is a continuous sawtooth band extending along the axial direction of the sleeve rod, and the continuous sawtooth band is located in the through groove.

3. The insulator assembly with adjustment function according to claim 2, characterized in that, The locking element is a self-locking wedge, which is adapted to the continuous toothed band.

4. The insulator assembly with adjustment function according to claim 3, characterized in that, The drive assembly includes a movable plate, a pull rope, and a pull ring. The inner wall of the sleeve is provided with a receiving groove. One side wall of the movable plate is connected to the self-locking wedge block, and the other side wall of the movable plate is connected to the bottom wall of the receiving groove through the elastic element. One end of the pull rope is connected to the side wall of the movable plate, and the other end of the pull rope passes through the elastic element and the through hole on the side wall of the sleeve and is connected to the pull ring.

5. The insulator assembly with adjustment function according to claim 4, characterized in that, The receiving groove is provided with a guide groove, and the corresponding position of the moving plate is provided with a guide rod adapted to the guide groove.

6. The insulator assembly with adjustment function according to claim 5, characterized in that, The guide groove has an annular shoulder at its open end, and the guide rod has a limit ring at its moving end. The limit ring cooperates with the annular shoulder to prevent the moving plate from coming off.

7. The insulator assembly with adjustment function according to claim 4, characterized in that, The movable plate is connected to one end of the pull rope via a fixed rod. When the self-locking wedge is interlocked with the continuous toothed band, the free end of the fixed rod is at least partially located in the through hole.

8. The insulator assembly with adjustment function according to claim 4, characterized in that, The pull ring is connected to one end of the pull rope via a limiting plate.

9. The insulator assembly with adjustment function according to claim 1, characterized in that, The inner wall of the sleeve is provided with a limiting block at the bottom end, and the sleeve rod is provided with a limiting groove that matches the limiting block. The limiting block can slide along the limiting groove.

10. The insulator assembly with adjustment function according to claim 3, characterized in that, The inclined surface of the self-locking wedge has the same inclination angle as the inclined surface of the saw teeth of the continuous saw teeth band, and satisfies the self-locking condition.

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