A third rail support connection structure

Abstract

This application discloses a third rail support connection structure, relating to the field of rail transit equipment technology, to solve the technical problem in the prior art where the insulating cantilever of the third rail support is fixedly connected to the base frame via a connector, making it inconvenient to adjust the installation angle of the insulating cantilever, and consequently, inconvenient for the insulating cantilever to clamp the third rail. This application includes a base frame, an insulating cantilever, and a locking mechanism; one end of the insulating cantilever is rotatably connected to the base frame via an adjustment mechanism, and the other end is connected to an insulating hook for fixing the third rail; the locking mechanism is mounted on the base frame and is used to lock the adjustment mechanism. Through this technical solution, because the insulating cantilever of the third rail support is rotatably connected to the base frame via an adjustment mechanism, the installation angle of the insulating cantilever can be adjusted more easily, thus making it easier to clamp the third rail.

Description

Technical Field

[0001] This application relates to the field of rail transit equipment technology, specifically to a third rail support connection structure. Background Technology

[0002] With economic development, urban subways have also seen significant growth. Currently, most urban subways use a third rail power supply system, which involves laying an I-beam parallel to the two main rails as a third rail (contact rail). The main function of the third rail is to transmit high-voltage power to the electric locomotive's drive unit via a pantograph. The third rail is fixed to the roadbed by a third rail bracket.

[0003] In existing technology, the third rail support includes an insulating cantilever and a base frame. One end of the insulating cantilever is fixedly connected to the base frame via a connector, and the other end is connected to an insulating arm. The insulating arm can effectively fix the third rail. Although the insulating cantilever can fix the third rail, the third rail support does not bear the weight of the third rail; the main weight of the third rail is borne by other devices. When installing the third rail using the third rail support, due to varying ground heights, it is often necessary to adjust the installation angle of the insulating cantilever to better clamp the third rail.

[0004] However, the insulating cantilever of the third rail bracket is fixedly connected to the base frame by a non-adjustable connector, which makes it inconvenient to adjust the installation angle of the insulating cantilever, and consequently, it is inconvenient for the insulating cantilever to clamp the third rail. Utility Model Content

[0005] The main objective of this application is to provide a third rail support connection structure, which aims to solve the technical problem in the prior art where the insulating cantilever of the third rail support is fixedly connected to the base frame through a connector without adjustment, making it inconvenient to adjust the installation angle of the insulating cantilever and thus inconvenient for the insulating cantilever to clamp the third rail.

[0006] To achieve the above objectives, this application provides a third rail support connection structure, comprising: a base frame; An insulated cantilever, which is rotatably connected to the base frame; A locking mechanism is mounted on the base frame and is used to lock the insulating cantilever.

[0007] Optionally, the insulating cantilever is rotatably connected to the base frame via an adjustment mechanism; the adjustment mechanism includes a rotating column, the base frame has a rotating groove, the rotating column is located in the rotating groove, and the locking mechanism is used to lock the rotating column.

[0008] Optionally, the insulating cantilever has an adjustment through hole along its width direction, and the adjustment mechanism further includes an adjustment column passing through the adjustment through hole. The adjustment column is provided with a limiting member, which is used to prevent the adjustment column from rotating within the adjustment through hole. The rotating column is disposed at both ends of the adjustment column.

[0009] Optionally, the limiting member includes a plurality of limiting ribs and a plurality of limiting grooves that correspond one-to-one; the plurality of limiting ribs are arranged along the length direction of the adjusting column, the plurality of limiting grooves are arranged along the length direction of the adjusting through hole, and the limiting ribs are located within the limiting grooves.

[0010] Optionally, the rotating column includes a support section and a fixed section connected to each other. The support section is connected to the end face of the adjusting column and contacts the rotating groove. The locking mechanism is used to lock the fixed section. The outer diameter of the support section is larger than the outer diameter of the fixed section.

[0011] Optionally, the rotating column further includes a connecting section connected to the end face of the fixed section, an expansion member connected to the connecting section, and a locking mechanism for fixing the expansion member. The outer diameter of the connecting section is smaller than the outer diameter of the fixed section.

[0012] Optionally, the expansion member includes a rotating section and an expansion section connected to each other; The expansion section has a connecting hole along its length, and the connecting section is connected to the connecting hole by a thread. The expansion section has a plurality of expansion grooves that are uniformly opened along its length and communicate with the connecting hole. The plurality of expansion grooves divide the part of the expansion section away from the rotating section into a plurality of expansion pieces. When the expansion pieces are subjected to radial force, they expand outward and come into contact with the expansion section.

[0013] Optionally, the locking mechanism includes an upper locking assembly and a lower locking assembly; The lower locking assembly includes locking ears disposed on both sides of the base frame, and locking grooves are formed on the locking ears. Both ends of the adjusting mechanism extend into the locking grooves respectively. Optionally, the upper locking assembly includes a locking block mounted on the locking lug, the locking block being inserted into the locking groove and abutting against the adjusting mechanism; the upper locking assembly and the lower locking assembly are fixed together by a fixing assembly.

[0014] Optionally, the lower end of the locking block is provided with an arc-shaped groove, which is used to abut against the adjusting mechanism.

[0015] Optionally, the locking lug includes a locking body, and locking plates are integrally formed on both sides of the upper part of the locking body, and the locking groove is formed on the locking body; The locking block includes a horizontal plate, the bottom surface of which is connected to a vertical plate. The vertical plate is inserted into the locking groove, and the fixing component is installed between the horizontal plate and the locking piece.

[0016] By employing the above technical solution, this application has at least the following beneficial effects compared with the prior art: This application provides a third rail support connection structure, including a base frame, an insulating cantilever, and a locking mechanism. One end of the insulating cantilever is rotatably connected to the base frame via an adjustment mechanism, and the other end is connected to an insulating hook for fixing the third rail. The locking mechanism is mounted on the base frame and is used to lock the adjustment mechanism. That is, if it is necessary to adjust the installation angle of the insulating cantilever in space, the locking mechanism can be released from fixing the adjustment mechanism first, and then the insulating hook can be moved to apply an upward or downward force. Since the insulating cantilever is rotatably connected to the base frame via the adjustment mechanism, when the insulating hook is subjected to an upward force, it will cause the insulating cantilever to rotate upward around the adjustment mechanism; when the insulating hook is subjected to a downward force, it will cause the insulating cantilever to rotate downward around the adjustment mechanism. When the insulating cantilever tilts upward or downward, its installation angle in space can be adjusted. After the installation angle is adjusted, the adjusting mechanism is fixed by a locking mechanism. Because the adjusting mechanism is fixed by the locking mechanism, it will no longer rotate, and the insulating cantilever will no longer rotate, thus fixing its installation position in space. In other words, since the insulating cantilever of the third rail bracket is rotatably connected to the base frame via the adjusting mechanism, the installation angle of the insulating cantilever can be adjusted more easily, thereby adjusting the installation angle of the insulating hook, and further facilitating the clamping of the third rail by the insulating hook. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 A three-dimensional structural diagram of a third rail support connection structure provided in an embodiment of this application; Figure 2 A partial cross-sectional schematic diagram of the adjustment mechanism, base frame, and insulated cantilever connection provided in an embodiment of this application; Figure 3 A three-dimensional structural schematic diagram of the insulating cantilever provided in the embodiments of this application; Figure 4 A three-dimensional structural schematic diagram of the adjustment mechanism provided in the embodiments of this application; Figure 5 This is a partial three-dimensional structural diagram of the rotating column located in the locking groove according to an embodiment of this application; Figure 6 A three-dimensional structural schematic diagram of the expansion member, adjustment mechanism, and insulating cantilever connection provided in the embodiments of this application; Figure 7 A cross-sectional view of the connection between the expansion member and the adjustment mechanism provided in an embodiment of this application; Figure 8 A three-dimensional structural schematic diagram of the expansion member provided in the embodiments of this application; Figure 9 A front cross-sectional view of the expansion member provided in an embodiment of this application; Figure 10 This is a three-dimensional structural diagram of the base frame provided in the embodiments of this application; Figure 11 This is a three-dimensional structural diagram of the locking block provided in an embodiment of this application; Figure 12 A front cross-sectional view of the locking block provided in an embodiment of this application; Figure 13 This is a three-dimensional structural diagram of the insulating hook provided in the embodiments of this application; Figure 14 This is a front sectional view of the fixing mechanism provided in the embodiment of this application, installed on the base frame.

[0019] Reference numerals: 1. Fixing mechanism; 101. Fixing bolt; 102. Fixing sleeve; 103. Fixing nut; 2. Base frame; 3. Expansion component; 31. Rotating section; 32. Expansion section; 321. Expansion groove; 322. Expansion plate; 4. Locking mechanism; 41. Lower locking assembly; 411. Locking lug; 4111. Locking groove; 412. Locking plate; 4121. Lower connecting hole; 42. Upper locking assembly; 421. Vertical plate; 4211. Arc groove; 422. Horizontal... Plate; 4221, Upper connecting hole; 5, Insulating cantilever; 51, Adjusting through hole; 52, Limiting groove; 53, T-shaped protrusion; 6, Fastening bolt; 7, Third track; 8, Insulating hook; 81, T-shaped slot; 9, Insulating isolation pad; 10, Locking nut; 11, Adjusting mechanism; 111, Rotating column; 1111, Connecting section; 1112, Fixed section; 1113, Support section; 112, Adjusting column; 1121, Limiting rib; 12, Locking bolt; 13, Fixed slot.

[0020] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0025] To address the aforementioned technical problems, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them.

[0026] like Figure 1-2As shown, this application provides a third rail support connection structure, including a base frame 2, an insulating cantilever 5, and a locking mechanism 4. One end of the insulating cantilever 5 is rotatably connected to the base frame 2 through an adjustment mechanism 11, and the other end is connected to an insulating hook 8, which is used to fix the third rail 7. The locking mechanism 4 is installed on the base frame 2 and is used to lock the insulating cantilever 5.

[0027] In this embodiment, the base frame 2 is preferably L-shaped, which facilitates its installation and connection with the insulating cantilever 5. Furthermore, the base frame 2, insulating cantilever 5, insulating hook 8, locking mechanism 4, and adjusting mechanism 11 in this application are preferably made of composite materials. The third track 7 is pre-installed, and it is better held in place when the insulating cantilever 5 is parallel to the bottom of the base frame 2. If the ground on which the base frame 2 is installed is uneven, causing the base frame 2 to have a certain tilt angle, the installation angle of the insulating cantilever 5 in space needs to be adjusted to ensure that the insulating cantilever 5 is parallel to the bottom of the base frame 2. Specifically, the locking mechanism 4 can be deactivated to stop the adjusting mechanism 11, and then the insulating hook 8 can be moved. The force for moving the insulating hook 8 can be provided by relevant personnel or by relevant equipment, so that the insulating hook 8 is subjected to an upward or downward force. Since the insulating cantilever 5 and the base frame 2 are rotatably connected via the adjusting mechanism 11, when the insulating hook 8 is subjected to an upward force, it will cause the insulating cantilever 5 to rotate upward around the adjusting mechanism 11; when the insulating hook 8 is subjected to a downward force, it will cause the insulating cantilever 5 to rotate downward around the adjusting mechanism 11. When the insulating cantilever 5 tilts upward or downward, the installation angle of the insulating cantilever 5 and the insulating hook 8 in space can be adjusted. When the insulating cantilever 5 is parallel to the bottom of the base frame 2, the adjusting mechanism 11 is then fixed by the locking mechanism 4. Because the adjusting mechanism 11 is fixed by the locking mechanism 4, the adjusting mechanism 11 will no longer rotate, and the insulating cantilever 5 will no longer rotate, thus fixing the installation position of the insulating cantilever 5 in space. In other words, compared to the existing brackets where the base frame 2 and the insulating cantilever 5 are fixedly connected, the insulating cantilever 5 of the third rail bracket in this application is rotatably connected to the base frame 2 via an adjustment mechanism 11. Therefore, the installation angle of the insulating cantilever 5 can be adjusted more easily via the adjustment mechanism 11, making it easier to adjust the bottom of the insulating cantilever 5 and the base frame 2 to be parallel. Thus, the bracket is no longer limited by the flatness of the ground, making it easier to hold the third rail 7 with the insulating hook 8, thereby reducing the labor intensity of personnel handling the third rail 7 and improving the installation efficiency of the third rail 7.

[0028] In order to better adjust the spatial angle (position) of the insulating cantilever 5, in some embodiments, such as Figures 2-3As shown, the insulating cantilever 5 has an adjustment through hole 51 along its width direction. The adjustment mechanism 11 includes an adjustment column 112 passing through the adjustment through hole 51. The adjustment column 112 has a limiting member along its length direction. The limiting member is used to prevent the adjustment column 112 from rotating within the adjustment through hole 51. Both ends of the adjustment column 112 are provided with rotating columns 111. The base frame 2 has a rotating groove. The rotating column 111 is located in the rotating groove. The locking mechanism 4 is used to lock the rotating column 111.

[0029] In this embodiment, the adjusting column 112 can be inserted into the adjusting through hole 51 using the limiting member as a reference, ensuring that there is no relative rotation between the adjusting column 112 and the adjusting through hole 51 under the restriction of the limiting member. This allows the position of the insulating cantilever 5 to be fixed after the angle of the insulating cantilever 5 is adjusted. The preferred connection between the rotating column 111 and the adjusting column 112 is integral molding, which makes the connection between the rotating column 111 and the adjusting column 112 more secure. When the locking mechanism 4 fixes the rotating column 111, it can simply press the rotating column 111 tightly. When adjusting the spatial position of the insulating cantilever 5, the adjusting column 112 and the insulating cantilever 5 rotate as a whole through the rotating column 111, which rotates within the rotating groove. Alternatively, another implementation of the adjusting mechanism 11 is to not open the adjusting through hole 51 in the insulating cantilever 5, but instead integrally mold the two rotating columns 111 onto the two end faces of the insulating cantilever 5. This not only simplifies the structure of the third rail bracket but also saves on production costs.

[0030] To better prevent relative rotation between the adjusting column 112 and the adjusting through hole 51, and thus to more accurately adjust the spatial angle of the insulating cantilever 5, in some embodiments, such as Figures 3-4 As shown, the limiting component includes a plurality of limiting ribs and a plurality of limiting grooves 52 that correspond one-to-one; the plurality of limiting ribs 1121 are evenly arranged along the length direction of the adjusting column 112, and the plurality of limiting grooves 52 are evenly arranged along the length direction of the adjusting through hole 51, and the limiting ribs 1121 are located in the limiting grooves 52.

[0031] In this embodiment, when the adjusting column 112 is installed in the adjusting through hole 51, the limiting rib 1121 is aligned with the limiting groove 52, and then the adjusting column 112 is forcefully pushed into the adjusting through hole 51. This facilitates the installation of the adjusting column 112. Furthermore, the specific structure of the limiting component is not limited to the above structure and can be modified according to actual conditions. For example, the cross-sectional shape of the adjusting through hole 51 can be set to a polygon (such as a triangle, quadrilateral, etc.), and the cross-sectional shape of the adjusting column 112 can also be set to a corresponding shape. In short, as long as the installation and adjustment are satisfied, there should be no relative rotation between the adjusting column 112 and the adjusting through hole 51.

[0032] To better secure the rotating column 111, in some embodiments, such as Figures 4-9 As shown, the rotating column 111 includes a support section 1113 and a fixing section 1112 integrally formed. The support section 1113 is integrally formed with the end face of the adjusting column 112. The support section 1113 contacts the rotating groove. The locking mechanism 4 is used to lock the fixing section 1112. The outer diameter of the support section 1113 is larger than the outer diameter of the fixing section 1112. The rotating column 111 also includes a connecting section 1111 integrally formed with the end face of the fixing section 1112. An expansion member 3 is threadedly connected to the connecting section 1111. The locking mechanism 4 is used to fix the expansion member 3. The outer diameter of the connecting section 1111 is smaller than the outer diameter of the fixing section 1112. The expansion member 3 includes a rotating section 31 and an expansion section 32 integrally formed together. A connecting hole is formed in the expansion section 32 along its length direction. The connecting section 1111 is connected to the connecting hole by a thread. A plurality of expansion grooves 321 are uniformly formed on the expansion section 32 along its length direction, each communicating with the connecting hole. The plurality of expansion grooves 321 divide the portion of the expansion section 32 away from the rotating section 31 into a plurality of expansion pieces 322. When the expansion pieces 322 are subjected to radial force, they expand outward and contact the expansion section 32.

[0033] In this embodiment, when the expansion member 3 needs to be installed on the rotating column 111, the expansion member 3 (such as an expansion bolt) is aligned with the rotating column 111, and then the expansion member 3 is rotated. As the support section 1113 of the expansion member 3 rotates, the support section 1113 of the expansion member 3 will rotate onto the rotating column 111. Finally, the fixed section 1112 and the connecting section 1111 are connected by threads. As the connecting section 1111 enters the connecting hole, since the outer diameter of the connecting section 1111 is smaller than the outer diameter of the fixed section 1112, the expansion piece 322 will be subjected to a radial force from the fixed section 1112. After being subjected to a radial force, the expansion piece 322 will expand radially, eventually causing multiple expansion pieces 322 to surround the fixed section 1112. Then, the locking mechanism 4 presses the expansion piece 322. Since the expansion member 3 and the rotating column 111 are connected by threads, it is only necessary to ensure that the locking mechanism 4 presses the expansion piece 322 to prevent the support section 1113 from rotating in the rotating groove, thereby preventing the insulating cantilever 5 from rotating.

[0034] To better compress the expansion plate 322 in the adjustment mechanism 11, in some embodiments, such as Figure 1 and Figures 10-12As shown, a preferred structure of the locking mechanism 4 is given, namely, the locking mechanism 4 includes an upper locking component 42 and a lower locking component 41; the lower locking component 41 includes locking ears 411 disposed on both sides of the base frame 2, and the locking ears 411 have locking grooves 4111, and the two ends of the adjusting mechanism 11 extend into the locking grooves 4111 respectively; the upper locking component 42 includes a locking block installed on the locking ears 411, and the lower end of the locking block has an arc-shaped groove 4211, the locking block is inserted into the locking groove 4111, and the arc-shaped groove 4211 abuts against the adjusting mechanism 11; the upper locking component 42 and the lower locking component 41 are fixed together by a fixing component. The locking lug 411 includes a locking body, on both sides of the upper part of which locking plates 412 are integrally formed. The locking groove 4111 is formed on the locking body. The locking block includes a horizontal plate 422, on the center of the bottom surface of which a vertical plate 421 is integrally formed. The vertical plate 421 is inserted into the locking groove 4111. The fixing component is installed between the horizontal plate 422 and the locking plates 412. The fixing component includes multiple upper connecting holes 4221 and multiple lower connecting holes 4121. The multiple upper connecting holes 4221 are formed on the horizontal plate 422, and the multiple lower connecting holes 4121 are formed on the locking plates 412. A fixing bolt 101 is connected between the upper connecting holes 4221 and the lower connecting holes 4121. A locking nut 10 is connected to the locking bolt 12.

[0035] In this embodiment, the locking groove 4111 is U-shaped, the rotating section 31 of the rotating column 111 contacts the locking groove 4111, the bottom surface of the locking groove 4111 is arc-shaped, and the vertical plate 421 has the same shape as the locking groove 4111. This allows for a better fit between the vertical plate 421 and the locking groove 4111, and the support section 1113 can rotate within the locking groove 4111. At this time, the lower part of the locking groove 4111 is equivalent to the rotating groove in the above embodiment. When it is necessary to fix the rotating column 111 with the locking block, first insert the vertical plate 421 of the locking block into the locking groove 4111, and make the horizontal plate 422 and the locking piece 412 fit together, so that the arc-shaped groove 4211 of the locking block abuts against the locking piece 412. Then, the locking bolt 12 passes through the upper connecting hole 4221 and the lower connecting hole 4121 in sequence, and the locking lug 411 and the locking block are fixed by the locking nut 10. After the locking nut 10 secures the locking lug 411 and the locking block, the locking block further presses against the locking plate 412, so that the locking plate 412 no longer rotates under the action of external force, thereby further securing the rotating column 111, and further securing the insulating cantilever 5.

[0036] To better connect the insulating cantilever 5 and the insulating hook 8, in some embodiments, such as Figure 1 , Figure 3 and Figure 13 As shown, the top surface of the insulating cantilever 5 is integrally formed with a T-shaped protrusion 53 along its width direction, and the insulating hook 8 is provided with a T-shaped slot 81 along its width direction. The T-shaped protrusion 53 is engaged in the T-shaped slot 81. A fastening bolt 6 is also connected between the insulating cantilever 5 and the insulating hook 8.

[0037] In this embodiment, when the insulating cantilever 5 and the insulating hook 8 are connected together, first align the T-shaped slot 81 on the insulating hook 8 with the T-shaped protrusion 53 on the insulating cantilever 5, then push the insulating hook 8 towards the insulating cantilever 5 until the T-shaped protrusion 53 and the T-shaped slot 81 engage. The insulating cantilever 5 and the insulating hook 8 are then engaged. Finally, by passing the fastening bolt 6 through the insulating cantilever 5 and the insulating hook 8, the insulating cantilever 5 and the insulating hook 8 can be fixed in place. This method of engaging the insulating cantilever 5 and the insulating hook 8 through the T-shaped protrusion 53 and the T-shaped slot 81 makes it easier to connect the insulating cantilever 5 and the insulating hook 8 together.

[0038] To better secure the third track 7, such as Figure 1 As shown, the insulating hook 8 and the insulating cantilever 5 form a fixing groove 13 for clamping the third track 7, and the fixing groove 13 is provided with an insulating isolation pad 9.

[0039] In this embodiment, both the insulating cantilever 5 and the insulating hook 8 are made of insulating material. A fixing groove 13 is formed between the insulating hook 8 and the insulating cantilever 5, and the third track 7 is clamped in the fixing groove 13. By installing an insulating insulating pad 9 in the fixing groove 13 in a conventional manner, the clamping force and friction on the third track 7 can be increased, thereby clamping the third track 7 more tightly. On the other hand, the insulation of the third track 7 can be increased, thereby making the use of the third track 7 safer.

[0040] To ensure the bracket is better installed on the mounting body, such as Figure 14 As shown, a fixing mechanism 1 is also installed on the base frame 2. The fixing mechanism 1 is used to install the base frame 2 on the mounting body. The fixing mechanism 1 includes a plurality of fixing bolts 101 installed on the base frame 2. Fixing sleeves 102 and fixing nuts 103 are installed on the fixing bolts 101 in sequence.

[0041] In this embodiment, the mounting body refers to the main body on which the bracket can be installed, such as a foundation. When the bracket needs to be installed on the mounting body, the fixing bolt 101 is passed through the mounting body and the base frame 2 in sequence, then the fixing sleeve 102 and the fixing nut 103 are fitted onto the fixing bolt 101 in sequence, and finally the fixing nut 103 is tightened. This makes the bracket installation more stable, thereby making the third track 7 more stable, which is more conducive to the normal and orderly operation of the urban subway.

[0042] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A third rail support connection structure, characterized by, include: Frame (2); An insulating cantilever (5) is rotatably connected to the base frame (2); Locking mechanism (4) is mounted on the base frame (2) and is used to lock the insulating cantilever (5).

2. The third rail support connection structure of claim 1, wherein The insulating cantilever (5) is rotatably connected to the base frame (2) via an adjustment mechanism (11); the adjustment mechanism (11) includes a rotating column (111), and the base frame (2) has a rotating groove, and the rotating column (111) is rotatably connected to the rotating groove; the locking mechanism (4) is used to lock the rotating column (111).

3. The third rail support connection structure of claim 2, wherein The insulating cantilever (5) has an adjustment through hole (51) along its width direction. The adjustment mechanism (11) also includes an adjustment column (112) passing through the adjustment through hole (51). The adjustment column (112) is provided with a limiting member, which is used to prevent the adjustment column (112) from rotating in the adjustment through hole (51). The rotating column (111) is arranged at both ends of the adjustment column (112).

4. The third rail support connection structure of claim 3, wherein The limiting component includes a plurality of limiting ribs (1121) and a plurality of limiting grooves (52) that correspond one-to-one; the plurality of limiting ribs (1121) are arranged along the length direction of the adjusting column (112), and the plurality of limiting grooves (52) are arranged along the length direction of the adjusting through hole (51), and the limiting ribs (1121) are located in the limiting grooves (52).

5. The third rail support connection structure of claim 3 or 4, wherein, The rotating column (111) includes a support section (1113) and a fixed section (1112) connected to each other. The support section (1113) is connected to the end face of the adjusting column (112). The support section (1113) is in contact with the rotating groove. The outer diameter of the support section (1113) is larger than the outer diameter of the fixed section (1112). The locking mechanism (4) is used to lock the fixed section (1112).

6. The third rail support connection structure of claim 5, wherein The rotating column (111) also includes a connecting section (1111) connected to the end face of the fixed section (1112), and an expansion member (3) is connected to the connecting section (1111). The outer diameter of the connecting section (1111) is smaller than the outer diameter of the fixed section (1112). The locking mechanism (4) is used to fix the expansion member (3).

7. The third rail support connection structure of claim 6, wherein The expansion member (3) includes a rotating section (31) and an expansion section (32) that are connected to each other. The expansion section (32) has a connecting hole along its length direction. The connecting section (1111) is connected to the connecting hole by a thread. The expansion section (32) has a plurality of expansion grooves (321) that are uniformly connected to the connecting hole along its length direction. The plurality of expansion grooves (321) divide the part of the expansion section (32) away from the rotating section (31) into a plurality of expansion pieces (322). When the expansion piece (322) is subjected to radial force, it expands outward and contacts the expansion section (32).

8. The third rail support connection structure of claim 2, wherein The locking mechanism (4) includes an upper locking component (42) and a lower locking component (41). The lower locking assembly (41) includes locking ears (411) disposed on both sides of the base frame (2), and locking grooves (4111) are provided on the locking ears (411). The two ends of the adjusting mechanism (11) extend into the locking grooves (4111) respectively. The upper locking assembly (42) includes a locking block installed on the locking lug (411), the locking block being inserted into the locking groove (4111) and abutting against the adjusting mechanism (11); the upper locking assembly (42) and the lower locking assembly (41) are fixed together by a fixing assembly.

9. The third rail support connection structure of claim 8, wherein, The lower end of the locking block is provided with an arc-shaped groove (4211), which is used to abut against the adjusting mechanism (11).

10. The third rail support connection structure of claim 8, wherein, The locking lug (411) includes a locking body, and locking plates (412) are fixedly connected to both sides of the upper part of the locking body. The locking groove (4111) is opened on the locking body. The locking block includes a horizontal plate (422), the bottom surface of which is connected to a vertical plate (421), the vertical plate (421) is inserted into the locking groove (4111), and the fixing component is installed between the horizontal plate (422) and the locking piece (412).

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