Subway grounding flat aluminum protective plate

Abstract

The utility model discloses a subway grounding flat aluminum protective plate which comprises grounding flat aluminum, the grounding flat aluminum stretches across a contact rail insulation support base, a grounding flat aluminum protective plate is arranged outside the grounding flat aluminum located over the contact rail insulation support base, and lifting structures are arranged on the two sides of the grounding flat aluminum protective plate. The grounding flat aluminum protection plate is connected with the contact rail insulation support base through a lower pressing strip. The grounding flat aluminum protective plate is arranged to effectively support and fix the grounding flat aluminum above the contact rail insulation support base, the grounding flat aluminum is not easy to break, the pressing strip is arranged to enable the middle of the grounding flat aluminum to obtain pressing force so as to offset upward stress at the bending position of the grounding flat aluminum, and the bending plate is arranged to enable two sides of the grounding flat aluminum to be subjected to lifting force, so that the grounding flat aluminum is not easy to break. The overall bending degree of the grounding flat aluminum is reduced, and the bending part in the middle of the grounding flat aluminum is prevented from being broken due to stress.

Description

Technical Field

[0001] The utility model relates to the technical field of subway power supply, in particular to a subway grounding flat aluminum guard plate. Background Art

[0002] The grounding flat aluminum is used to connect the base of the insulation bracket of the subway contact rail. When the insulation bracket short-circuits and breaks down, it leads the current back to the grounding grid of the substation. Due to the low hardness of the grounding flat aluminum, when it crosses the metal base, the middle part is raised, and it needs to be punched and fixed here, which leads to the formation of a weak point in the structural strength. If it is affected by external vibrations, trampling and other factors, the grounding flat aluminum is prone to breakage. After breaking, there are hidden dangers such as failure to conduct current and limit intrusion, and the entire grounding flat aluminum needs to be replaced, which is inconvenient. Utility Model Content

[0003] The utility model aims to provide a subway grounding flat aluminum guard plate. By arranging the grounding flat aluminum guard plate, the grounding flat aluminum located above the base of the contact rail insulating bracket is effectively supported and fixed and is not easy to break. A lower pressure strip is arranged so that the middle part of the grounding flat aluminum is subjected to downward pressure to offset the upward force at the bending part of the grounding flat aluminum. A bending plate is arranged so that the two sides of the grounding flat aluminum are subjected to a pulling force, so that the overall bending degree of the grounding flat aluminum is reduced, thereby solving the problems in the prior art.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A subway grounding flat aluminum guard plate comprises a grounding flat aluminum, wherein the grounding flat aluminum spans across a contact rail insulating support base, a grounding flat aluminum guard plate is arranged outside the grounding flat aluminum directly above the contact rail insulating support base, lifting structures are arranged on both sides of the grounding flat aluminum guard plate, and the grounding flat aluminum guard plate is connected to the contact rail insulating support base via a lower pressing strip.

[0006] Preferably, the two ends of the grounding flat aluminum protective plate are respectively provided with a first plug-in portion, and a first slot is opened on the same side of the two first plug-in portions. First mounting holes are also symmetrically opened on both sides of the grounding flat aluminum protective plate, and first mounting holes are also opened at corresponding positions of the grounding flat aluminum. First fixing bolts are provided in the first mounting holes corresponding to the grounding flat aluminum and the grounding flat aluminum protective plate.

[0007] Preferably, the lifting structure includes a bending plate, a second plug-in part and a fixing bolt, the lower end of the bending plate is connected to the second plug-in part, a second slot is opened on one side of the second plug-in part, and the grounding flat aluminum penetrates the first slot and the second slot in sequence from the center to both ends.

[0008] Preferably, the bending plate and the second plug-in portion form a set of locking structures, and two sets of locking structures are symmetrically arranged. A second mounting hole is opened at the upper end of the bending plate, and the corresponding second mounting holes on the two bending plates are penetrated by second fixing bolts and connected with nuts.

[0009] Preferably, the contact rail insulating bracket base is installed on the ground by a third fixing bolt, and the lower pressure bar obliquely crosses and abuts against the upper surface of the grounding flat aluminum guard plate. The lower pressure bar is an inverted U-shaped structure, and fixing feet are provided at both ends of the lower pressure bar. The fixing feet pass through two third fixing bolts located on the diagonal, and the upper surface of the fixing feet abuts against nuts.

[0010] Preferably, the grounding flat aluminum guard plate, the bending plate and the lower pressure strip are made of stainless steel.

[0011] Preferably, a cushion layer is provided between the grounding flat aluminum and the base of the contact rail insulating bracket.

[0012] Preferably, the upper surface of the grounded flat aluminum and the lower surface of the grounded flat aluminum guard plate are in contact with each other.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model is provided with a grounding flat aluminum guard plate so that the grounding flat aluminum located above the base of the contact rail insulating bracket can be effectively supported and fixed, and is not easy to break. A lower pressure strip is provided so that the middle part of the grounding flat aluminum is subjected to downward pressure to offset the upward force at the bending part of the grounding flat aluminum. A bending plate is provided so that both sides of the grounding flat aluminum are subjected to a pulling force, so that the overall bending degree of the grounding flat aluminum is reduced, thereby avoiding the breaking of the bending part in the middle of the grounding flat aluminum due to force.

[0015] 2. In the utility model, a grounding flat aluminum protective plate can be installed on the outside of the broken grounding flat aluminum to quickly repair it, avoiding cutting off the entire section and re-laying and installing it, thereby saving manpower and operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the first axonometric drawing of the overall structure of the utility model;

[0017] Figure 2 It is the second axonometric drawing of the overall structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 4 This is an axonometric view of the grounding flat aluminum guard plate of the utility model;

[0020] Figure 5 It is an axonometric drawing of the bent plate of the utility model.

[0021] In the figure: 1. Grounding flat aluminum; 2. Contact rail insulation bracket base; 3. Grounding flat aluminum guard plate; 4. Pulling structure; 5. Lower pressure strip; 6. First plug-in part; 7. First slot; 8. First mounting hole; 9. Bending plate; 10. Second plug-in part; 11. Second fixing bolt; 12. Second slot; 13. Second mounting hole; 14. First fixing bolt; 15. Third fixing bolt; 16. Fixing foot; 17. Pad. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In order to solve the problem that the subway grounding flat aluminum is easy to break in the prior art, and cannot be diverted and invaded after breaking, and the whole grounding flat aluminum needs to be replaced, the following technical solution is given, please refer to Figure 1-5 ;

[0024] A subway grounding flat aluminum guard plate comprises a grounding flat aluminum 1, which spans across a contact rail insulating support base 2. A grounding flat aluminum guard plate 3 is arranged outside the grounding flat aluminum 1 directly above the contact rail insulating support base 2. Lifting structures 4 are arranged on both sides of the grounding flat aluminum guard plate 3. The grounding flat aluminum guard plate 3 is connected to the contact rail insulating support base 2 via a lower pressing strip 5.

[0025] The two ends of the grounding flat aluminum guard plate 3 are respectively provided with a first plug-in portion 6, and the same side of the two first plug-in portions 6 is provided with a first slot 7. The grounding flat aluminum 1 passes through the first slot 7 so that the grounding flat aluminum guard plate 3 fits with the grounding flat aluminum 1. The two sides of the grounding flat aluminum guard plate 3 are also symmetrically provided with first mounting holes 8, and the corresponding position of the grounding flat aluminum 1 is also provided with a first mounting hole 8. The first mounting holes 8 corresponding to the grounding flat aluminum 1 and the grounding flat aluminum guard plate 3 are provided with a first fixing bolt 14. A cushion layer 17 is provided between the grounding flat aluminum 1 and the contact rail insulation bracket base 2, and the cushion layer 17 can increase the grounding flat aluminum 1 and the contact rail insulation bracket base 2. The contact area between the rail insulation bracket base 2 is prevented from being damaged to the grounding flat aluminum 1 at both ends of the contact rail insulation bracket base 2 due to the contact area being too small; the grounding flat aluminum 1, the grounding flat aluminum guard plate 3 and the cushion layer 17 are installed together through the first fixing bolt 14 to make them fit each other, and the grounding flat aluminum guard plate 3 can provide support for the grounding flat aluminum 1 to prevent the grounding flat aluminum 1 from breaking due to excessive bending. The broken grounding flat aluminum 1 can be equipped with the grounding flat aluminum guard plate 3 through the reserved first installation hole 8 to avoid cutting off the entire section and re-laying and installing it, which saves manpower and operating costs.

[0026] The lifting structure 4 includes a bending plate 9, a second plug-in portion 10 and a second fixing bolt 11. The lower end of the bending plate 9 is connected to the second plug-in portion 10. A second slot 12 is provided on one side of the second plug-in portion 10. The grounding flat aluminum 1 passes through the first slot 7 and the second slot 12 in sequence from the center to both ends. The bending plate 9 and the second plug-in portion 10 are a set of locking structures, and two sets of locking structures are symmetrically provided. A second mounting hole 13 is provided at the upper end of the bending plate 9. The corresponding second mounting holes 13 on the two bending plates 9 are penetrated by the second fixing bolts 11 and connected with nuts. The second plug-in part 10 is clamped on both sides of the grounding flat aluminum 1, and the second fixing bolts 11 are respectively passed through the second mounting holes 13 corresponding to the two bending plates 9. When the nuts are tightened, the two bending plates 9 approach each other, and the bending plates 9 are slightly deformed and straightened, and the outer end of the second plug-in part 10 is slightly lifted upward, and the inner end of the second plug-in part 10 is slightly pressed downward, thereby offsetting the upward bending force in the middle of the grounding flat aluminum 1 to a certain extent. After the grounding flat aluminum guard plate 3 is added, the diversion cross-sectional area of ​​the grounding flat aluminum 1 is increased, and it will not cause secondary effects on the mechanical and electrical properties of the existing equipment. The second plug-in part 10 is closely installed with the grounding flat aluminum 1, which can reduce the impact of the vibration of the roadbed, thereby eliminating the weak points of the structural strength and avoiding the problem of breakage.

[0027] The contact rail insulating bracket base 2 is installed on the ground by the third fixing bolt 15, and the lower pressure strip 5 is obliquely across and abuts against the upper surface of the grounding flat aluminum guard plate 3. The lower pressure strip 5 is an inverted U-shaped structure. Fixed feet 16 are provided at both ends of the lower pressure strip 5. The fixed feet 16 pass through two third fixing bolts 15 located on the diagonal line, and the upper surface of the fixed feet 16 abuts against a nut. The lower pressure strip 5 is installed after the grounding flat aluminum guard plate 3 is installed, and the relative position of the fixed feet 16 on the third fixing bolt 15 is adjusted by turning the nut. The lower pressure strip 5 can be slightly deformed as the fixed feet 16 move downward and exert downward pressure on the upper surface of the grounding flat aluminum guard plate 3, assisting the grounding flat aluminum guard plate 3 to further offset the force at the middle bend of the grounding flat aluminum 1.

[0028] The grounding flat aluminum guard plate 3, the bending plate 9 and the lower pressing strip 5 are made of stainless steel to ensure the support force of the grounding flat aluminum 1.

[0029] Working principle: by adding a grounding flat aluminum guard plate 3 to the outside of the grounding flat aluminum 1 located just above the base 2 of the contact rail insulating bracket, a supporting force is provided to the grounding flat aluminum 1 to prevent the grounding flat aluminum 1 from breaking; a lower pressure strip 5 is installed in the middle of the grounding flat aluminum 1 to apply downward pressure to offset the upward force at the middle bend to prevent the grounding flat aluminum 1 from breaking; when tightening the nut, the two bent plates 9 are brought closer to each other, the bent plates 9 are slightly deformed and straightened, the outer end of the second plug-in part 10 is slightly lifted upward, and the inner end of the second plug-in part 10 is slightly pressed downward, thereby offsetting the upward bending force at the middle position of the grounding flat aluminum 1 to a certain extent; the second plug-in part 10 is installed closely to the grounding flat aluminum 1, which can also reduce the impact of roadbed vibration, assist in eliminating weak points in structural strength, and avoid breakage problems.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A subway grounding flat aluminum guard plate, comprising a grounding flat aluminum (1), characterized in that: The grounding flat aluminum (1) spans across the contact rail insulating support base (2); a grounding flat aluminum protective plate (3) is provided on the outside of the grounding flat aluminum (1) located directly above the contact rail insulating support base (2); lifting structures (4) are provided on both sides of the grounding flat aluminum protective plate (3); and the grounding flat aluminum protective plate (3) and the contact rail insulating support base (2) are connected via a lower pressure strip (5).

2. The subway grounding flat aluminum guard plate according to claim 1 is characterized in that: The two ends of the grounding flat aluminum protective plate (3) are respectively provided with a first plug-in portion (6), and a first slot (7) is provided on the same side of the two first plug-in portions (6). The two sides of the grounding flat aluminum protective plate (3) are also symmetrically provided with first mounting holes (8), and the corresponding positions of the grounding flat aluminum (1) are also provided with first mounting holes (8). First fixing bolts (14) are provided in the corresponding first mounting holes (8) of the grounding flat aluminum (1) and the grounding flat aluminum protective plate (3).

3. A subway grounding flat aluminum guard plate according to claim 2, characterized in that: The lifting structure (4) comprises a bending plate (9), a second plug-in portion (10) and a second fixing bolt (11); the lower end of the bending plate (9) is connected to the second plug-in portion (10); a second slot (12) is provided on one side of the second plug-in portion (10); and the grounding flat aluminum (1) passes through the first slot (7) and the second slot (12) in sequence from the center to both ends.

4. A subway grounding flat aluminum guard plate according to claim 3, characterized in that: The bending plate (9) and the second plug-in portion (10) form a set of locking structures, and two sets of locking structures are symmetrically arranged. A second mounting hole (13) is opened at an upper end of the bending plate (9), and second fixing bolts (11) penetrate the corresponding second mounting holes (13) on the two bending plates (9) and are connected by nuts.

5. The subway grounding flat aluminum guard plate according to claim 4, characterized in that: The contact rail insulation support base (2) is installed on the ground through a third fixing bolt (15), the lower pressure strip (5) obliquely crosses and abuts against the upper surface of the grounding flat aluminum guard plate (3), the lower pressure strip (5) is an inverted U-shaped structure, and fixing feet (16) are provided at both ends of the lower pressure strip (5), the fixing feet (16) pass through two third fixing bolts (15) located on the diagonal line, and the upper surface of the fixing feet (16) abuts against a nut.

6. A subway grounding flat aluminum guard plate according to claim 5, characterized in that: The grounding flat aluminum guard plate (3), the bending plate (9) and the lower pressing strip (5) are made of stainless steel.

7. A subway grounding flat aluminum guard plate according to claim 6, characterized in that: A cushion layer (17) is provided between the grounding flat aluminum (1) and the contact rail insulating support base (2).

8. The subway grounding flat aluminum guard plate according to claim 7, characterized in that: The upper surface of the grounding flat aluminum (1) and the lower surface of the grounding flat aluminum protective plate (3) are in contact with each other.

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