Adjustable glass fiber reinforced plastic cable bridge capable of limiting cable

Abstract

The utility model provides an adjustable glass fiber reinforced plastic cable bridge capable of limiting a cable, and belongs to the technical field of cables. Comprising a circular base, a set of supporting plates are symmetrically and fixedly connected to the top of the circular base, inverted-T-shaped mounting frames are arranged on the opposite faces of the two supporting plates, each supporting plate is connected with the corresponding mounting frame through a connecting bolt, and a limiting wheel is rotationally connected between the two supporting plates; and the adjusting assembly is used for adjusting the direction of the limiting wheel, the adjusting assembly is connected with the supporting plate, and the adjusting assembly comprises a plurality of adjusting holes which are formed in the supporting plate and are symmetrical about the axis of the supporting plate. Through the design of the adjusting assembly, a user can conveniently adjust the position and the angle of the limiting wheel so as to adapt to cables with different thicknesses. The guide grooves and the elastic pieces on the limiting wheels can be tightly attached to the cable, an effective limiting effect is provided, and the cable is prevented from shaking or shifting in the bridge.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable technical field, especially a kind of adjustable glass steel cable bridge that can limit cable. BACKGROUND

[0002] Cable bridge is a kind of support and protection equipment for power, communication, data and other cables, usually made of metal or non-metal materials. It can be installed on the wall, ceiling or ground, used to carry and arrange various cables, so that the cables can be wired in order, and has good mechanical protection and fireproof performance.

[0003] The utility model discloses a kind of assembled glass steel cable bridges in the utility model patent with publication number CN 215733284 U, including first bridge and second bridge, the cross section of first bridge and second bridge is all U-shaped, and the one end of first bridge is fixedly connected with connecting frame, second bridge is inserted in the inside of connecting frame, the bottom inner wall of second bridge is on the same horizontal line with the bottom inner wall of first bridge, the side outer wall of second bridge one end is opened with mouth, the side outer wall of second bridge close to mouth is fixedly connected with limit frame, and the inner wall of limit frame is inserted with limit plug. The utility model inserts second bridge in the inside of connecting frame, can drive limit plug to be inserted in limit slot by the reset action of spring, facilitate to carry out assembling treatment to the cable bridge of corner type formed, reduce the height of second positioning seat, utilize the clamping groove in first positioning seat and second positioning seat to carry out positioning treatment to cable.

[0004] The above case is difficult to limit and fix according to the thickness of cable during actual use, and the installation of bridge is too complex, therefore, the utility model provides a kind of adjustable glass steel cable bridge that can limit cable to meet the needs. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the utility model provides the following technical scheme:

[0006] A kind of adjustable glass steel cable bridge that can limit cable, including circular seat, the top of the circular seat is fixedly connected with a group of support plates symmetrically, the opposite surface of two support plates is equipped with the mounting frame of inverted "T" shape, the support plate is connected with mounting frame by a connecting bolt, and the limit wheel is rotatably connected between two mounting frames;Adjusting assembly, the adjusting assembly is used for azimuth adjustment of limit wheel, and the adjusting assembly is connected with support plate.

[0007] Optionally, the adjusting assembly comprises a plurality of adjusting holes symmetrically arranged with respect to the axis of the support plate and formed in the support plate, a clamping column slidably connected in the adjusting hole, a limiting sleeve slidably connected to the outer portion of the clamping column, a guide column fixedly connected to the inner portion of the limiting sleeve, the clamping column slidably connected to the outer portion of the guide column, two limiting sleeves, and a connecting slot formed in the opposite surfaces of the two limiting sleeves, a connecting plate slidably connected in the connecting slot, the connecting plate fixedly connected to the inward end of the clamping column on one side and slidably connected to the outer portion of the guide column, two connecting plates, and a reset spring fixedly connected between the two connecting plates and sleeved on the outer portion of the reset spring, the clamping column extending through the adjusting hole, and a rubber plug clamped on the outward end of the clamping column.

[0008] Optionally, the middle portions of the two mounting frames are connected by bolts, the limiting wheel comprises a hub rotatably connected to the outer portion of the bolt, a guide slot formed in the outer portion of the hub, and two groups of symmetrically arranged elastic members annularly fixedly connected to the inner wall of the guide slot, the elastic members being recessed towards the guide slot and having smooth surfaces.

[0009] Optionally, the bottom of the circular seat is provided with a mounting assembly, the mounting assembly comprises a connecting seat fixedly connected to the bottom of the circular seat, a connecting disc clamped in the inner portion of the bottom end of the connecting seat, and an anchor rod sleeve slidably connected to the outer portion of the connecting disc.

[0010] Optionally, the connecting seat comprises a bottom disc connected to the bottom of the circular seat, connecting columns fixedly connected to the two sides of the bottom disc, limiting spheres fixedly connected to the outer ends of the connecting columns, two fixed pull ropes fixedly connected to the outer portion of the top end of the anchor rod sleeve, rope sleeves provided at the ends of the fixed pull ropes, and the rope sleeves sleeved on the outer portions of the connecting columns.

[0011] Optionally, a cavity is formed in the inner portion of the bottom end of the bottom disc, abutting elastic sheets are fixedly connected to the inner wall of the cavity, avoiding grooves are formed in the inner wall of the cavity of the abutting elastic sheets, an abutting portion is provided at the top end of the connecting disc, and an abutting groove matching the abutting elastic sheets is formed in the outer wall of the abutting portion.

[0012] Optionally, an abutting disc is fixedly connected to the bottom of the abutting portion, a steel column is fixedly connected to the bottom of the abutting disc, the anchor rod sleeve is sleeved on the outer portion of the steel column, and helical threads are formed in the outer wall of the anchor rod sleeve.

[0013] Compared with the prior art, the utility model has at least the following beneficial effects:

[0014] In the above scheme, by adjusting the design of the assembly, the user can conveniently adjust the position and angle of the limiting wheel to adapt to different thickness of the cable. The design of the guide groove and the elastic piece on the limiting wheel can closely fit the cable, providing effective limiting effect to prevent the cable from shaking or shifting in the bridge.

[0015] In the above scheme, the installation assembly design of the bottom of the circular seat simplifies the installation process of the bridge. The clamping structure between the connecting seat and the connecting disc and the sliding connection between the anchor rod sleeve and the steel column enable the bridge to be quickly and stably fixed on the ground or other support structure. At the same time, the design of the fixed pull rope and the rope sleeve further enhances the flexibility and convenience of installation.

[0016] In the above scheme, the stable connection of the circular seat, the support plate, the mounting bracket and the limiting wheel and other components ensures that the bridge can maintain stability when carrying the cable and is not easy to deform or damage. At the same time, the use of glass steel material also provides good mechanical protection and fireproof performance. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the present application and, together with the description, further serve to explain the principles of the present application and to enable a person skilled in the relevant art to make and use the present application.

[0018] Figure 1 is a schematic diagram of a three-dimensional structure of an adjustable glass steel cable bridge capable of limiting the cable;

[0019] Figure 2 is a schematic diagram of a three-dimensional structure of a cable bridge;

[0020] Figure 3 is a schematic diagram of a three-dimensional structure of a limiting wheel;

[0021] Figure 4 is a schematic diagram of a three-dimensional structure of a circular seat;

[0022] Figure 5 is a schematic diagram of a three-dimensional structure of a connecting plate;

[0023] Figure 6 is a schematic diagram of a three-dimensional structure of a connecting disc.

[0024] [Reference signs]

[0025] 1, round seat; 2, support plate; 201, adjusting hole; 3, mounting frame; 4, limiting wheel; 401, wheel hub; 402, guide groove; 403, elastic piece; 5, connecting seat; 501, bottom plate; 502, connecting column; 503, butt joint elastic sheet; 6, anchor rod sleeve; 601, helical thread; 602, fixed pull rope; 7, connecting disc; 701, butt joint disc; 702, steel column; 703, butt joint part; 8, limiting sleeve; 9, clamping column; 10, connecting plate; 11, guide column; 12, reset spring.

[0026] As shown in the drawings, in order to clearly realize the structure of the embodiments of the utility model, specific structures and devices are marked in the drawings, but this is only for the need of illustration, and is not intended to limit the utility model in the specific structure, device and environment. According to specific needs, those skilled in the art can adjust or modify these devices and environment. DETAILED DESCRIPTION

[0027] The utility model provides a kind of adjustable glass steel cable bridge of limiting cable provided in the following in conjunction with drawings and specific embodiment is described in detail. It is explained here simultaneously, in order to make embodiment more detailed, the following embodiment is best, preferred embodiment, for some known technology, other alternative ways can also be implemented by those skilled in the art;And part of the drawings is only for more specific description of embodiment, and is not intended to be specific to the utility model.

[0028] It should be noted that in the specification, "one embodiment", "embodiment", "exemplary embodiment", "some embodiments" and the like indicate that the described embodiment can include specific features, structures or characteristics, but not necessarily every embodiment includes the specific features, structures or characteristics. In addition, when describing specific features, structures or characteristics in conjunction with embodiments, it should be within the knowledge of those skilled in the related art to realize such features, structures or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0029] Generally, the term can be understood at least partly from the use in context. For example, at least partly depending on the context, the term "one or more" used herein can be used to describe any feature, structure or characteristic of singular meaning, or can be used to describe the combination of features, structures or characteristics of plural meaning. In addition, the term "based on" can be understood as not necessarily intended to convey a set of exclusive factors, but can be replaced at least partly depending on the context, allowing the existence of other factors not necessarily explicitly described.

[0030] It is to be understood that the terms "on", "above", and "upper" in the present application should be interpreted in the broadest context, such that "on" not only means "directly on" but also includes the meaning of "on" with intervening characteristics or layers therebetween, and "above" or "upper" not only means "above" or "upper" but also can include the meaning of "above" or "upper" with no intervening characteristics or layers therebetween.

[0031] In addition, spatially relative terms, such as "beneath", "below", "lower", "above", "upper", and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0032] As Figures 1 to 6The utility model discloses an adjustable glass steel cable bridge frame can be positioned to cable, including circular seat 1, its characterized in that circular seat 1's top symmetry fixedly connected with a group of support plate 2, two support plate 2's opposite surface all are equipped with the mounting bracket 3 of inverted " T " shape, support plate 2 and mounting bracket 3 are connected through a connecting bolt, and two between rotatory connection is limited wheel 4, adjusting assembly, adjusting assembly is used for the direction adjustment of limited wheel 4, adjusting assembly is connected with support plate 2, and adjusting assembly includes the multiple adjusting holes 201 of setting in support plate 2 inside with support plate 2 axis symmetry and setting, the inside slide connection of adjusting hole 201 has the clamping column 9, the outside slide connection of clamping column 9 has the limit sleeve 8, and the inside fixed connection of limit sleeve 8 has the guide column 11, and clamping column 9 slide connection is in the outside of guide column 11, and the number of limit sleeve 8 is two, and the opposite surface of two limit sleeve 8 all are equipped with the connecting groove, and the inside slide connection of connecting groove has the connecting plate 10, and the fixed connection of connecting plate 10 one side with the inward end of clamping column 9, and connecting plate 10 slide connection is in the outside of guide column 11, and the number of connecting plate 10 is two, and two connecting plate 10 between through return spring 12 fixed connection, and return spring 12 is set up in the outside of return spring 12, and one end of clamping column 9 penetrates and extends to the inside of adjusting hole 201, and the rubber plug is clamped on the outward end of clamping column 9, and the middle part of two mounting bracket 3 is connected through bolt, and limited wheel 4 includes the wheel hub 401 of rotatory connection in the outside of bolt, and the outside of wheel hub 401 is equipped with the guide groove 402, and the inner wall on guide groove 402 is annular fixedly connected with two groups of symmetrically arranged elastic pieces 403, and elastic piece 403 is to the recess of guide groove 402, and the surface of elastic piece 403 all is smooth surface, first, circular seat 1 is fixed to the wall, ceiling or ground, ensures the steady installation of support plate 2. Then, mounting bracket 3 on two support plate 2 is connected through connecting bolt, forms the support structure, pulls out the rubber plug, and pulls clamping column 9 outward, and makes it from adjusting hole 201 partial or completely exit. In this process, connecting plate 10 will slide on guide column 11, and compress return spring 12, and after loosening clamping column 9, connecting plate 10 will drive clamping column 9 to move inward due to the elastic force of return spring 12, but because clamping column 9 is not completely aligned with adjusting hole 201 at this time, so it will remain in a certain intermediate position, align clamping column 9 with the required adjusting hole 201, and pull clamping column 9 outward again until it completely enters the adjusting hole 201. At this time, return spring 12 will push connecting plate 10 and clamping column 9, ensure that clamping column 9 is securely clamped in adjusting hole 201, repeat the above steps, and the same operation is carried out on the other side of clamping column 9 to adjust the horizontal and vertical positions of limited wheel 4, place the cable in the guide groove 402 of limited wheel 4, and the cable will be subjected to slight pressure from the elastic pieces 403, thereby being held in the guide groove 402, achieving limiting and fixing, after confirming that the cable laying is completed, the position of the limiting wheel 4 can be checked again to ensure that it has a good limiting effect on the cable.Finally, the bridge can be further secured to the ground by fixing the pull rope and anchor rod sleeve to enhance stability. Through the design of the adjustment assembly, users can easily adjust the position and angle of the limiting wheel 4 to adapt to cables of different thickness and direction. The guide groove 402 and elastic member 403 on the limiting wheel 4 can provide tight limiting action to prevent the cable from shaking or shifting. The installation process of the bridge is simple and fast, and the design of the adjustment assembly makes it easy to adjust the limiting wheel 4. Users do not need complex tools or professional skills to complete the adjustment work. The stable connection of the circular seat 1, support plate 2, mounting frame 3 and limiting wheel 4 ensures the overall stability of the bridge. The use of glass steel material also provides good mechanical strength and fireproof performance. The design of the elastic member 403 not only provides limiting action, but also to a certain extent, reduces the friction and vibration between the cable and the bridge during movement, thereby reducing the generation of noise. By adjusting the position and angle of the limiting wheel 4, the bridge can adapt to different cable laying requirements and site environment, improving the flexibility and adaptability of use.

[0033] In this embodiment, as Figures 1 to 6As shown, the bottom of the circular seat 1 is provided with a mounting assembly, which includes a connecting seat 5 fixedly connected to the bottom of the circular seat 1, a connecting disc 7 internally clamped at the bottom end of the connecting seat 5, and an anchor rod sleeve 6 externally slidably connected to the connecting disc 7. The connecting seat 5 includes a bottom disc 501 connected to the bottom of the circular seat 1, and connecting columns 502 fixedly connected to both sides of the bottom disc 501, with limiting spheres fixedly connected to the outer ends of the connecting columns 502. Two fixed pull ropes 602 are externally fixedly connected to the top end of the anchor rod sleeve 6, with rope sleeves provided at the ends of the fixed pull ropes 602 and sleeved on the outside of the connecting columns 502. A cavity is internally provided at the bottom end of the bottom disc 501, with abutting elastic sheets 503 fixedly connected to the inner wall of the cavity, and a relief groove provided on the inner wall of the cavity of the abutting elastic sheets 503. An abutting portion 703 is provided at the top end of the connecting disc 7, with an abutting groove compatible with the abutting elastic sheets 503 provided on the outer wall of the abutting portion 703. The bottom of the abutting portion 703 is fixedly connected to an abutting disc 701, and the bottom of the abutting disc 701 is fixedly connected to a steel column 702, with the anchor rod sleeve 6 sleeved on the outside of the steel column 702. A spiral thread 601 is provided on the outer wall of the anchor rod sleeve 6 to ensure that the circular seat 1 has been stably installed on the wall, ceiling or floor, and the connecting seat 5, connecting disc 7, anchor rod sleeve 6 and fixed pull rope 602 are ready for installation. The abutting portion 703 of the connecting disc 7 is aligned with the inside of the bottom end of the connecting seat 5, and is gently pressed down. The abutting elastic sheets 503 will deform after being pressed by the abutting portion 703, enter the relief groove, allow the abutting portion 703 to smoothly pass through and reach the predetermined position. When the abutting groove of the abutting portion 703 is aligned with the abutting elastic sheets 503, the abutting elastic sheets 503 will return to their original shape and be clamped into the abutting groove, realizing the stable connection between the connecting seat 5 and the connecting disc 7. The anchor rod sleeve 6 is sleeved on the steel column 702 at the bottom of the connecting disc 7 to ensure that the anchor rod sleeve 6 can smoothly slide, and the fixed pull rope 602 is used to connect the anchor rod sleeve 6 with the connecting column 502. The rope sleeves of the fixed pull ropes 602 are sleeved on the limiting spheres outside the connecting column 502 to ensure that the anchor rod sleeve 6 will not fall off the steel column 702 when subjected to tension. According to needs, the position of the anchor rod sleeve 6 on the steel column 702 can be adjusted for subsequent fixation of the bridge to the ground, and the anchor rod sleeve 6 is firmly fixed to the ground using an anchor rod or other fixing device. Since the spiral thread 601 is provided on the outer wall of the anchor rod sleeve 6, it helps to increase the friction with the ground and improve the stability of the fixation. After confirming that the bridge has been stably fixed at the desired position, subsequent cable laying work can be carried out. The stable connection between the connecting seat 5 and the connecting disc 7 is realized through the cooperation of the abutting elastic sheets 503 and the abutting groove, which is simple and reliable and can effectively prevent the bridge from loosening or falling off during use. The sliding connection between the anchor rod sleeve 6 and the steel column 702 and the use of the fixed pull rope 602 make the fixation of the bridge more flexible and diverse.The user can select a suitable fixing mode according to the field environment and installation requirements, improve the convenience and adaptability of installation, and the spiral thread 601 on the outer wall of the anchor rod sleeve 6 increases the friction with the ground, improving the stability of the bridge frame fixing. Even in harsh environmental conditions, the bridge frame can remain stable and not sway, ensuring the safe operation of the cable system. Since the installation assembly adopts a modular design, the various components can be easily disassembled and reinstalled. This makes the maintenance and adjustment of the bridge frame more simple and fast, reducing the maintenance cost and time cost.

[0034] The utility model discloses a working principle provides, first, the circular seat 1 is fixed to the wall, ceiling or ground, ensures that support plate 2 steady installation. Then, the mounting bracket 3 on two support plates 2 is connected through the connecting bolt, forms the support structure, pulls out the rubber plug, and pulls outwards the clamping column 9, makes it from the adjusting hole 201 partially or completely quits. In this process, the connecting plate 10 will slide on the guide column 11 and compress the reset spring 12, and after loosening the clamping column 9, the connecting plate 10 will drive the clamping column 9 to move inwards because of the elastic force of reset spring 12, but because the clamping column 9 is not completely aligned with the adjusting hole 201 at this time, it will keep in some intermediate position, the clamping column 9 is aligned with the required adjusting hole 201, and the clamping column 9 is pulled outwards again until it enters the adjusting hole 201 completely. At this time, the reset spring 12 will push the connecting plate 10 and the clamping column 9, ensure that the clamping column 9 is stably clamped in the adjusting hole 201, repeat the above steps, and the clamping column 9 on the other side is also operated in the same way, to adjust the horizontal and vertical positions of the limiting wheel 4, place the cable in the guide groove 402 of the limiting wheel 4, and the cable will be slightly pressed by the elastic member 403, so as to be kept in the guide groove 402, realize limiting and fixing, after confirming that the cable laying is completed, the position of the limiting wheel 4 can be checked again to ensure that the limiting effect on the cable is good. Finally, the bridge frame can be further fixed to the ground through the fixed pull rope and anchor rod sleeve to enhance the stability, through the design of the adjusting assembly, the user can easily adjust the position and angle of the limiting wheel 4 to adapt to cables of different thickness and direction. The guide groove 402 and the elastic member 403 on the limiting wheel 4 can provide a tight limiting effect to prevent the cable from shaking or shifting, and the installation process of the bridge frame is simple and fast, and the design of the adjusting assembly makes the adjustment of the limiting wheel 4 easy.

[0035] The utility model covers any alternative, modification, equivalent method and scheme on the essence and range of the utility model. In order to make the public have the thorough understanding of the utility model, the specific details are explained in the following preferred embodiment of the utility model, and the utility model can also be completely understood without the description of these details for the person skilled in the art. In addition, in order to avoid unnecessary confusion to the essence of the utility model, the well-known method, process, flow, element and circuit etc. are not explained in detail.

[0036] The above merely describes the preferred embodiments of the present application, and it should be noted that, for those skilled in the art, some improvements and refinements can be made without departing from the principles of the present application, and these improvements and refinements should also be considered within the protection scope of the present application.

Claims

1. An adjustable glass steel cable bridge capable of limiting the cable, comprising a circular seat (1), characterized in that, The top of the circular seat (1) is symmetrically and fixedly connected with a group of support plates (2), the opposite surfaces of two support plates (2) are provided with inverted "T"-shaped mounting racks (3), the support plate (2) and the mounting rack (3) are connected through a connecting bolt, and the two mounting racks (3) are rotationally connected with a limiting wheel (4). An adjusting assembly is used for the orientation adjustment of the limiting wheel (4), and the adjusting assembly is connected with the support plate (2).

2. The adjustable glass steel cable bridge of claim 1, wherein, The adjusting assembly comprises a plurality of adjusting holes (201) which are symmetrically arranged along the axis of the support plate (2) and are arranged in the support plate (2), the inside of the adjusting hole (201) is slidably connected with a clamping column (9), the outside of the clamping column (9) is slidably connected with a limiting sleeve (8), the inside of the limiting sleeve (8) is fixedly connected with a guide column (11), the clamping column (9) is slidably connected to the outside of the guide column (11), the number of the limiting sleeve (8) is two, the opposite surfaces of the two limiting sleeves (8) are provided with a connecting groove, the inside of the connecting groove is slidably connected with a connecting plate (10), one side of the connecting plate (10) is fixedly connected with the inward end of the clamping column (9), the connecting plate (10) is slidably connected to the outside of the guide column (11), the number of the connecting plate (10) is two, the two connecting plates (10) are fixedly connected through a return spring (12), the return spring (12) is sleeved on the outside of the return spring (12), one end of the clamping column (9) penetrates and extends into the inside of the adjusting hole (201), and the outward end of the clamping column (9) is clamped with a rubber plug.

3. The adjustable glass steel cable bridge of claim 2, wherein, The middle portions of the two mounting racks (3) are connected through bolts, the limiting wheel (4) comprises a hub (401) which is rotationally connected to the outside of the bolt, the outside of the hub (401) is provided with a guide groove (402), the inner wall of the guide groove (402) is annularly and fixedly connected with two groups of symmetrically arranged elastic members (403), the elastic members (403) are recessed towards the guide groove (402), and the surfaces of the elastic members (403) are smooth surfaces.

4. The adjustable glass steel cable bridge of claim 3, wherein, The bottom of the circular seat (1) is provided with a mounting assembly, the mounting assembly comprises a connecting seat (5) which is fixedly connected to the bottom of the circular seat (1), the inside of the bottom end of the connecting seat (5) is clamped with a connecting disc (7), and the outside of the connecting disc (7) is slidably connected with an anchor rod sleeve (6).

5. The adjustable glass steel cable bridge of claim 4, wherein, The connecting seat (5) includes a bottom disc (501) connected with the bottom of the circular seat (1), both sides of the bottom disc (501) are fixedly connected with connecting columns (502), the outer end of the connecting column (502) is fixedly connected with a limiting spherical body, the outer part of the top end of the anchor rod sleeve (6) is fixedly connected with two fixed pull ropes (602), the end of the fixed pull rope (602) is provided with a rope sleeve, the rope sleeve is sleeved on the outside of the connecting column (502), the inside of the bottom end of the bottom disc (501) is provided with a cavity, the inner wall of the cavity is fixedly connected with a butt joint elastic sheet (503), the inner wall of the cavity of the butt joint elastic sheet (503) is provided with a avoiding groove, the top end of the connecting disc (7) is provided with a butt joint part (703), the outer wall of the butt joint part (703) is provided with a butt joint groove matched with the butt joint elastic sheet (503), the bottom of the butt joint part (703) is fixedly connected with a butt joint disc (701), the bottom of the butt joint disc (701) is fixedly connected with a steel column (702), the anchor rod sleeve (6) is sleeved on the outside of the steel column (702), and the outer wall of the anchor rod sleeve (6) is provided with a spiral thread (601).

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