Special-shaped pull rod

Abstract

The utility model relates to a special-shaped pull rod which comprises a connecting rod body and a connecting end piece. The connecting end piece is connected with one end of the connecting rod body; the connecting end piece comprises a connecting pipe body and a pull ring body; one end of the pull ring body is fixedly connected with one end of the connecting pipe body, and the other end of the pull ring body extends in the direction away from the connecting pipe body. The pull ring body is provided with a connecting through hole, and the connecting through hole is perpendicular to the axial direction of the connecting pipe body. And a positioning piece is arranged on at least one side of the pull ring body along the axial direction of the connecting through hole. According to the utility model, the inherent defects of the traditional pull rod under special working conditions are effectively overcome, the perfect matching with a complex space is realized, and the pull rod can still work stably and reliably under harsh stress conditions.

Description

TECHNICAL FIELD

[0001] The utility model relates to railway track reinforcing equipment technical field especially relates to a special-shaped pull rod. BACKGROUND

[0002] Railway track gauge pull rod is an important connecting piece between two steel rails on the railway. When the train runs on the steel rail, the wheels of the train will produce strong lateral pressure on the steel rail, which will push the two steel rails outward and cause the gauge between the two steel rails to expand outward. Therefore, the pull rod, as a crucial connecting element, cannot be underestimated. It not only bears the task of connecting various components and ensures the precise fixing of the relative position between components, but also is responsible for transmitting force and motion, which is a key link to ensure the normal operation of mechanical equipment.

[0003] Traditional pull rods are designed to have a relatively regular shape, with a common rod body being cylindrical and a standardized connecting end. This design has played an important role in various mechanical devices over a long period of time. However, when applied to narrow-gauge track structures, it exposes many problems.

[0004] In narrow-gauge track structures, the wheel axle side pressure and lateral impact force generated when the train is running will directly act on the steel rail. Under the repeated action of these forces, the waist of the steel rail is prone to deformation and damage, which in turn causes the gauge to increase. Changes in the gauge can seriously affect the safety and stability of train operation, increasing the risk of accidents such as derailment.

[0005] In terms of traditional track gauge pull rods, there are a series of drawbacks in the design and actual use. Taking the common track gauge pull rod structure as an example, it is usually composed of a metal shell, a plastic lining, an insulating crosspiece, and a transverse pull rod. In actual work, the force borne by the transverse pull rod will be directly transmitted to the plastic lining. Since the plastic lining is relatively soft, it is prone to wear, breakage, and other damage under long-term high pressure, making it a vulnerable part of the entire track gauge pull rod structure. Once the plastic lining is damaged, the metal shell must be replaced frequently to prevent internal circuit short circuits, which not only increases maintenance costs but also consumes a lot of manpower and time.

[0006] In addition, the existing track gauge pull rod structure design is too compact. Although this compact structure meets the installation space requirements to some extent, it brings great inconvenience to maintenance work. Once a component of the track gauge pull rod fails, due to structural limitations, it is often impossible to replace the damaged component individually, and the entire structure needs to be replaced. This undoubtedly causes unnecessary economic waste, increases the cost of track maintenance, and has a negative impact on the long-term stable operation of the track system.

[0007] In addition, for some special tracks, such as normal track and narrow track combination track, due to the increase of the number of tracks, the corresponding pull rod needs to be added to different tracks to keep the track gauge stable; however, the complex structure of the existing traditional pull rod will interfere with the track of different sizes when arranged, and in the narrow track, the track gauge becomes smaller, which undoubtedly brings the problems of complex production and increased installation difficulty for the traditional pull rod.

[0008] Therefore, the traditional track gauge pull rod has obvious deficiencies in terms of track stress deformation, structure design and maintenance cost when applied to narrow track structure, and a new type of pull rod is needed to solve these problems. Utility model content

[0009] The utility model solves the technical problem to provide a special-shaped pull rod.

[0010] In order to realize the above-mentioned utility model purposes, the utility model provides a special-shaped pull rod, which comprises a connecting rod body and a connecting end piece.

[0011] The connecting end piece is connected with one end of the connecting rod body.

[0012] The connecting end piece comprises a connecting pipe body and a pull ring body.

[0013] One end of the pull ring body is fixedly connected with one end of the connecting pipe body, and the other end of the pull ring body is arranged in the direction away from the connecting pipe body.

[0014] The pull ring body is provided with a connecting through hole, and the connecting through hole is arranged perpendicular to the axial direction of the connecting pipe body.

[0015] Along the axial direction of the connecting through hole, a positioning piece is arranged on at least one side of the pull ring body.

[0016] According to one aspect of the utility model, along the axial direction of the connecting pipe body, the positioning piece is located between the connecting pipe body and the connecting through hole.

[0017] According to one aspect of the utility model, the positioning piece is a block-shaped structural piece.

[0018] According to one aspect of the utility model, one end of the pull ring body connected with the connecting pipe body is provided with a reinforcing connecting part, and the reinforcing connecting part is arranged in the direction away from the pull ring body.

[0019] One side of the reinforcing connecting part in the extension direction is fixedly connected with the outer side surface of the connecting pipe body.

[0020] According to one aspect of the utility model, the reinforcing connecting part is arranged on both sides of the connecting pipe body.

[0021] According to one aspect of the utility model, the connecting end piece further comprises: an end reinforcing piece;

[0022] The end reinforcing piece is fixedly connected at one end of the connecting pipe body and the pull ring body, and the end reinforcing piece is fixedly connected on the inner side of the connecting pipe body coaxially with the connecting pipe body;

[0023] The end reinforcing piece is fixedly connected with the pull ring body.

[0024] According to one aspect of the utility model, the connecting end piece and the connecting rod body are connected by at least one of the following modes: threaded connection, key groove fixed connection, pin fixed connection, glue bonding, welding connection, interference fit connection.

[0025] According to one aspect of the utility model, an insulating sleeve is fixedly nested in the connecting pipe body, wherein the connecting pipe body and the insulating sleeve are connected by at least one of the following modes: threaded connection, key groove fixed connection, pin fixed connection, glue bonding, welding connection, interference fit connection.

[0026] The connecting end piece is connected with the connecting rod body based on the insulating sleeve.

[0027] According to one aspect of the utility model, one end of the connecting rod body away from the connecting end piece is provided with a threaded connection structure and a threaded connecting piece connected with the threaded connection structure.

[0028] According to one aspect of the utility model, the threaded connection structure is a threaded hole or a stud;

[0029] The threaded connecting piece is a ball head bolt or a ball head nut;

[0030] The connecting rod body is a glass steel rod piece;

[0031] The connecting pipe body and the pull ring body are steel structural pieces respectively;

[0032] The insulating sleeve is a glass steel sleeve;

[0033] The outer surfaces of the connecting rod body and the connecting end piece are respectively provided with a paint layer and / or a heat shrink tube.

[0034] According to one aspect of the utility model, the utility model can realize accurate and stable connection between adjacent parts of a track, guarantee efficient transmission of force and movement, not only can ensure stability and safety of the track, but also can effectively prevent damage caused by transverse deformation of the steel rail when the track gauge between the tracks is fixed, thereby greatly reducing the amount of steel rail replacement of the narrow-gauge railway during operation, and saving a large amount of steel rail maintenance cost.

[0035] According to one solution of this utility model, the inherent defects of traditional tie rods under special working conditions are effectively overcome, achieving a perfect fit to complex spaces and ensuring stable and reliable operation even under severe stress conditions.

[0036] According to one aspect of this utility model, the connecting end piece of this utility model adopts welded structural components to form an integral structure, so that it can play a stable role on the track, resist the lateral tension between the tracks, and ensure that the geometry and spacing of the tracks do not change, thereby improving the smoothness and safety of train operation.

[0037] According to one aspect of this utility model, the connecting end component, through welding, can fully guarantee its strength and toughness, reducing the frequency of maintenance and replacement due to loosening or damage of the connection points during long-term use, and extending the service life of the irregularly shaped small tie rod. Furthermore, welding can make the stress distribution of the tie rod more uniform, avoiding early fatigue failure caused by stress concentration at the connection points, and improving the fatigue resistance of the entire structure. In addition, welding makes the structure of this utility model more compact and rational, better adapting to these complex stress conditions, and improving its load-bearing capacity and durability.

[0038] According to one aspect of this utility model, the irregularly shaped tie rod can withstand a variety of complex forces, such as the impact force generated by train travel and the vibration caused by uneven track, thus giving it excellent adaptability.

[0039] According to one aspect of this utility model, the irregularly shaped tie rod of this utility model has good insulation performance and can be used in tracks with circuit structures. It can effectively prevent current leakage and has excellent electrical insulation effect.

[0040] According to one aspect of this invention, the connecting end component is formed by welding, which reduces the probability of damage under normal use conditions. This reduces the need for replacement and repair due to component failure, thereby lowering maintenance costs and workload. When repairing irregularly shaped tie rods, the welding connection method is relatively simple and direct, allowing maintenance personnel to quickly locate and repair the problem without complex disassembly and reinstallation processes, thus improving maintenance efficiency and reducing maintenance time and costs.

[0041] According to one aspect of this utility model, the connection end is directly connected to the cement sleeper, while the other end abuts against the side of the guide rail. This not only avoids interference between different rails, but also effectively reduces the overall length of the irregular tie rod and lowers its installation difficulty. Attached Figure Description

[0042] Figure 1A perspective view of the special-shaped pull rod according to an embodiment of the present application;

[0043] Figure 2 An exploded view of the special-shaped pull rod according to an embodiment of the present application;

[0044] Figure 3 A structural view of the connecting end piece according to an embodiment of the present application;

[0045] Figure 4 A structural view of the connecting rod body according to an embodiment of the present application. DETAILED DESCRIPTION

[0046] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0047] In the description of the embodiments of the present application, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" express the orientation or positional relationship based on the orientation or positional relationship shown in the relevant drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the above terms cannot be understood as a limitation of the present application.

[0048] The present application will be described in detail below in conjunction with the drawings and specific embodiments, and the embodiments cannot be described one by one here, but the embodiments of the present application are not limited to the following embodiments.

[0049] As Figure 1As shown, according to one embodiment of the utility model, a special-shaped pull rod of the utility model, including: connecting rod body 1, connecting end piece 2, in this embodiment, connecting rod body 1 and connecting end piece 2 are each separate structural members, and are connected to each other to constitute the entire special-shaped pull rod, wherein the position of the mutual connection of connecting rod body 1 and connecting end piece 2 can be set and adjusted as required, and further, the relative position of connecting rod body 1 and connecting end piece 2 can be flexibly adjusted according to the installed position to adapt to the corresponding structure to be limited, which can effectively improve the application flexibility of the utility model.

[0050] Further, as shown in Figure 1 、 Figure 2 and Figure 3 , connecting end piece 2 includes: connecting pipe body 21 and pull ring body 22; wherein, based on the setting of connecting pipe body 21, it can be conveniently sleeved on the outside of connecting rod body 1, thereby, the outer dimensions of connecting pipe body 21 can be flexibly set, and further, the connection area of connecting pipe body 21 and pull ring body 22 can be appropriately increased based on the outer shape, so as to fully ensure the reliability of the connection position of the present scheme, and improve the service life of the utility model.

[0051] Further, as shown in Figure 1 、 Figure 2 and Figure 3 , one end of pull ring body 22 is fixedly connected with one end of connecting pipe body 21, and the other end of pull ring body 22 is arranged in the direction away from connecting pipe body 21; wherein, the whole pull ring body 22 can be arranged as a plate-shaped body, and the whole structure composed of pull ring body 22 and connecting pipe body 21 is a symmetrical structure, so as to realize force balance in use of the utility model, which is more beneficial to ensure the use stability of the utility model.

[0052] In this embodiment, pull ring body 22 is provided with connecting through hole 221, and connecting through hole 221 is arranged perpendicular to the axial direction of connecting pipe body 21; wherein, connecting through hole 221 penetrates the opposite sides of pull ring body 22 to facilitate the passing of the spiral spike, and realizes the accurate positioning of the connection position of the special-shaped pull rod.

[0053] Further, along the axial direction of the connecting through hole 221, the positioning member 222 is arranged on at least one side of the pull ring body 22; wherein the positioning member 222 is clamped into the gap between the rail gauge baffle and the elastic strip, so that the assembly is more firm, and the steel rail on one side can also be pulled. While fixing the rail gauge between the rails, damage caused by lateral deformation of the steel rail can also be effectively prevented, thereby greatly reducing the amount of replacement of the steel rail during the operation of the narrow-gauge railway, and saving a large amount of steel rail maintenance cost.

[0054] According to an embodiment of the present application, as shown in Figure 1 、 Figure 2 and Figure 3 , along the axial direction of the connecting pipe body 21, the positioning member 222 is located between the connecting pipe body 21 and the connecting through hole 221. Through the above arrangement, the clamping of the positioning member 222 between the rail gauge baffle and the elastic strip or the abutting against the steel rail can be conveniently realized. Further, the positioning member 222 is adjacent to the connecting through hole 221, so that after the helical spike passes through the connecting through hole 221, the helical spike can produce a certain supporting action on the positioning member 222, which is more beneficial to ensuring the limiting action of the positioning member 222.

[0055] As shown in Figure 1 , according to an embodiment of the present application, the positioning member 222 is a block-shaped structural member; wherein the positioning member 222 can be arranged as a rectangular block.

[0056] As shown in Figure 1 , according to an embodiment of the present application, the end of the pull ring body 22 connected with the connecting pipe body 21 is provided with a reinforcing connecting part 22a, and the reinforcing connecting part 22a is arranged in the direction away from the pull ring body 22; in the present embodiment, the reinforcing connecting part 22a is in the shape of a long strip as a whole, so that one side of the reinforcing connecting part 22a in the extension direction can be fixedly connected with the outer side surface of the connecting pipe body 21.

[0057] According to an embodiment of the present application, as shown in Figure 1 、 Figure 2 and Figure 3 , the reinforcing connecting part 22a is arranged on both sides of the connecting pipe body 21.

[0058] The reinforcing connecting part 22a effectively increases the fixed connection area of the pull ring body 22 and the connecting pipe body 21, and sufficiently increases the connection strength and reliability therebetween.

[0059] According to an embodiment of the present application, as shown in Figure 2 and Figure 3As shown, according to an embodiment of the utility model, the connecting end piece 2 further comprises: an end reinforcing piece 23; wherein the end reinforcing piece 23 is fixedly connected to one end of the connecting pipe body 21 and the pull ring body 22, and the end reinforcing piece 23 is coaxially fixedly connected to the inside of the connecting pipe body 21; wherein the end reinforcing piece 23 is arranged in a shape consistent with the cross-sectional shape of the hollow part of the connecting pipe body 21 to ensure the fixed installation precision of the end reinforcing piece 23 and the connecting pipe body 21. In this embodiment, the end reinforcing piece 23 and the connecting pipe body 21 are fixed to each other by welding or other means, effectively ensuring the reliable stability of the connection.

[0060] Further, the end reinforcing piece 23 is fixedly connected to the pull ring body 22. Thus, the connecting area between the connecting pipe body 21 and the pull ring body 22 is further effectively increased, making the overall structural strength of the connecting end piece 2 higher, which is more beneficial to ensuring the connection reliability and stability of the present scheme.

[0061] As shown, Figure 1 According to an embodiment of the utility model, the connecting end piece 2 and the connecting rod body 1 are connected by at least one of the following connection methods: threaded connection, key groove fixed connection, pin fixed connection, glue bonding, welding connection, and interference fit connection. Thus, the connection between the connecting end piece 2 and the connecting rod body 1 can be flexibly adjusted by selecting the corresponding connection method, and the position adjustment precision is fully ensured. For example, when threaded connection is used, the connecting end piece 2 and the connecting rod body 1 can be detachably installed, which can effectively improve the relative length of the installation and the convenience of replacement and maintenance. When key groove fixed connection, pin fixed connection, glue bonding, welding connection, and interference fit connection are used, the machining and fitting difficulty between them can be more simply realized, and the strength after installation can be more reliable. In this embodiment, when interference fit is used, it can be installed based on hot pressing or thermal expansion and cold contraction. Further, at least two of the above connection methods can be used for connection in the present scheme to further improve the connection reliability, making the present scheme more suitable for environments where the alternating force is more frequent.

[0062] According to an embodiment of the utility model, an insulating sleeve is fixedly nested in the inside of the connecting pipe body 21, wherein the connecting pipe body 21 and the insulating sleeve are connected by at least one of the following connection methods: threaded connection, key groove fixed connection, pin fixed connection, glue bonding, welding connection, and interference fit connection. In this embodiment, the insulating sleeve is preferably fixedly nested with the connecting pipe body 21 by pin fixed connection, glue bonding, interference fit, and the like, thereby ensuring the durable and reliable connection between the connecting pipe body 21 and the insulating sleeve, making the structural reliability of the present scheme more optimal.

[0063] In the embodiment, the connecting end piece 2 is connected with the connecting rod body 1 based on the insulating sleeve. Through the arranged insulating sleeve, the insulating property of the utility model is further improved, so that the scheme can more fully adapt to the live use scene, thereby making the scheme have a wider application range.

[0064] In combination Figure 1 , Figure 2 and Figure 4 , according to an embodiment of the utility model, the connecting rod body 1 is provided with a threaded connection structure 2a and a threaded connecting piece 2b connected with the threaded connection structure 2a at one end away from the connecting end piece 2. Wherein, the threaded connection structure 2a is a threaded hole or a stud; the threaded connecting piece 2b is a ball head bolt or a ball head nut. In the embodiment, the ball head part of the threaded connecting piece 2b can be arranged as a movable ball to be installed in the end of the threaded connecting piece 2b in a fitting manner, and generally contains lubricating grease in the threaded connecting piece 2b to reduce the rotating friction of the ball and improve the service life of the component. Moreover, when screwing, the movable ball is arranged to more easily adjust the abutting force when the threaded connecting piece 2b contacts the side surface of the rail, and the ball head is more flexible than conventional ones.

[0065] Through the above arrangement, the fixing of the connecting rod body 1 can be more conveniently realized, so that the installation of the scheme is more flexible.

[0066] As shown in Figure 1 , according to an embodiment of the utility model, the connecting rod body 1 is a glass steel rod piece; the connecting pipe body 21 and the pull ring body 22 are steel structural pieces, specifically, the connecting pipe body 21, the pull ring body 22 and the end reinforcing piece 23 are all No. 45 steel structural pieces. Further, the insulating sleeve nested in the inside of the connecting pipe body 21 is a glass steel sleeve, thereby, based on the insulating sleeve, the matching with the physical properties of the connecting rod body 1 can be more easily realized, which is more beneficial to improve the service life and reliability of the utility model.

[0067] Through the above arrangement, the high strength and corrosion resistance of the utility model are effectively ensured, and based on the low density of glass steel, the mass of the entire special-shaped pull rod can be effectively reduced.

[0068] As shown in Figure 1 , according to an embodiment of the utility model, the outer surfaces of the connecting rod body 1 and the connecting end piece 2 are further provided with a paint layer to further improve the corrosion resistance and decorative property of the special-shaped pull rod of the utility model, and in particular, the paint layer can be provided with different colors to meet the needs of different scenes.

[0069] Through the above arrangement, the utility model has the advantages of short processing time, high forming efficiency, strong maintainability, no pollution to the environment, etc.

[0070] Of course, the connecting rod body 1 and the connecting end piece 2 can also be externally provided with a heat shrink tube for further protection after connection, wherein a heat shrink tube can be further provided outside the set paint layer, thereby achieving a combined setting mode of the paint layer and the heat shrink tube, which greatly improves the external protection characteristics of the special-shaped tension rod. Of course, in another embodiment, the heat shrink tube can also be selected to be set in the mode, and the specific setting method is a conventional setting method in the art, which will not be described here.

[0071] To further illustrate this scheme, the installation method is described.

[0072] For the combined track of the narrow track and the normal track, the narrow track is arranged between the normal tracks; wherein, due to the smaller gauge of the narrow track, a certain track spacing is formed between the narrow track and the normal track; then, according to the position of the required track spacing, the special-shaped tension rod is arranged between the normal track and the narrow track, wherein the connecting end piece 2 of the special-shaped tension rod of the present scheme is arranged at the position adjacent to the normal track; specifically, the lower part of the pull ring body 22 is a cement sleeper, an insulating gauge block, a gauge baffle, a spring strip, etc., and the upper part of the pull ring body 22 is a spiral spike, a gasket, a nut, etc. The spiral spike passes through the through hole of the pull ring body, is screwed into the cement sleeper, and is tightly connected through the lower part. The positioning member 222 is clamped into the gap between the spring strip and the spiral spike, which limits the degree of freedom to prevent horizontal rotation, provides accurate positioning and guiding effect, ensures correct installation of the special-shaped tension rod, and thus improves the assembly precision. It can also be automatically centered to prevent loosening and adapt to complex positioning requirements such as irregular shape of the spring strip.

[0073] Further, the threaded connecting piece 2b is opposite to the narrow track, and by adjusting the screwing length of the threaded connecting piece 2b and the threaded connecting structure 2a, the end of the threaded connecting piece 2b can be abutted against the side surface of the narrow track, thereby achieving the effect of maintaining the gauge of the whole rail.

[0074] In addition, the lower side of the threaded connecting piece 2b can also be in contact with the upper side of the rail bottom of the narrow track to produce a certain pressing effect on the track, thereby assisting in inhibiting the amplitude of the spring on the rail when the train passes through. In addition, by setting the threaded connecting piece 2b as a ball head screw or a ball head nut, the abutting effect on the rail can be achieved based on the ball head at the end of the threaded connecting piece 2b, which can also effectively reduce the contact area and friction between them. Especially when the ball head is set as a freely rolling ball, it can also play a loosening prevention effect on the threaded connecting piece 2b to prevent loosening in a vibrating or impact environment, thereby ensuring the safety of train travel.

[0075] It should be noted that when the threaded connecting piece 2b cannot fully abut against the track, a gasket can be further provided at the gap position to make it have a reliable contact effect.

[0076] The above merely illustrates the specific scheme of the present application, and the devices and structures not described in detail should be understood as being implemented by using the general devices and methods in the art.

[0077] The above merely illustrates the specific scheme of the present application, and the devices and structures not described in detail should be understood as being implemented by using the general devices and methods in the art.

Claims

1. A profiled tie rod, characterized in that, The utility model relates to a kind of connecting rod bodies (1), connecting end piece (2);Including: The connecting end piece (2) is connected with the one end of the connecting rod body (1); The connecting end piece (2) includes: connecting pipe body (21) and pull ring body (22); The pull ring body (22) one end is fixedly connected with the one end of the connecting pipe body (21), and the other end of the pull ring body (22) is extended and arranged along the direction away from the connecting pipe body (21); The pull ring body (22) is provided with connecting through hole (221), and the connecting through hole (221) is vertically arranged with the axial direction of the connecting pipe body (21); Along the axial direction of the connecting through hole (221), positioning piece (222) is arranged at least one side of the pull ring body (22). Along the axial direction of the connecting pipe body (21), the positioning piece (222) is located between the connecting pipe body (21) and the connecting through hole (221).

2. The profiled tie bar of claim 1, wherein, The positioning piece (222) is block structure piece.

3. The profiled tie bar of claim 2, wherein, The one end of the pull ring body (22) is provided with reinforcing connection part (22a) with the connecting pipe body (21), and the reinforcing connection part (22a) is extended and arranged along the direction away from the pull ring body (22); 4. The profiled tie bar of claim 3, wherein, The side of the extending direction of the reinforcing connection part (22a) is fixedly connected with the outer side of the connecting pipe body (21). The reinforcing connection part (22a) is arranged on both sides of the connecting pipe body (21) respectively.

5. The profiled tie bar of claim 4, wherein, The connecting end piece (2) further includes: end part reinforcing piece (23); 6. The profiled tie bar of claim 5, wherein, The end part reinforcing piece (23) is fixedly connected with the one end of the connecting pipe body (21) with the pull ring body (22), and the end part reinforcing piece (23) is fixedly connected with the connecting pipe body (21) coaxially in the inner side of the connecting pipe body (21); The end part reinforcing piece (23) is fixedly connected with the pull ring body (22). The connecting end piece (2) is connected between the connecting rod body (1) using at least one of the following connection modes: threaded connection, key groove fixed connection, pin fixed connection, glue bonding, welding connection, interference fit connection.

7. A profiled tie bar according to claim 6, characterised in that, The inner side of the connecting pipe body (21) is fixedly nested with insulating sleeve, wherein the connecting pipe body (21) and the insulating sleeve are connected using at least one of the following connection modes: threaded connection, key groove fixed connection, pin fixed connection, glue bonding, welding connection, interference fit connection; 8. The profiled tie bar of claim 7, wherein, The connecting end piece (2) is connected with the connecting rod body (1) based on the insulating sleeve. The one end of the connecting rod body (1) away from the connecting end piece (2) is provided with threaded connection structure (2a) and threaded connecting piece (2b) connected with the threaded connection structure (2a).

9. The profiled tie bar of claim 8, wherein, The threaded connection structure (2a) is threaded hole or stud bolt; 10. The profiled tie bar of claim 9, wherein, The threaded connecting piece (2b) is ball head bolt or ball head nut; The connecting rod body (1) is glass steel rod piece; The connecting pipe body (21) and pull ring body (22) are steel structural pieces respectively; The insulating sleeve is glass steel sleeve; The outer surfaces of the connecting rod body (1) and the connecting end piece (2) are respectively provided with paint layer and / or heat shrink tube. ​

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