Combined trackside support and annunciator device for backfilling-free foundation pit

Abstract

The utility model relates to the field of signal equipment, in particular to a combined trackside support for a backfill-free foundation pit and an annunciator device, the combined trackside support comprises a supporting platform, the bottom of the supporting platform is installed in the foundation pit, and the top of the supporting platform extends upwards to the outer side of the foundation pit. The first mounting frame and the second mounting frame are detachably connected to the side face of the top of the supporting platform, and the first mounting frame and the second mounting frame are located on the ground. The supporting platform is used for supporting the signal machine, the first installation frame is used for supporting the direction dividing box, the second installation frame is used for supporting the terminal box, the supporting platform is matched with the first installation frame and the second installation frame, and therefore the direction dividing box and the terminal box are indirectly installed on the supporting platform, and the signal machine, the direction dividing box and the terminal box are supported through the supporting platform. Meanwhile, only the supporting platform needs to be installed at the bottom of the foundation pit, the installation number of the supports is reduced, and the installation difficulty of the supports at the bottom of the foundation pit is lowered.

Description

Technical Field

[0001] The utility model relates to the field of signal devices, and particularly relates to a combined trackside support and signal machine device for a pit without backfilling. Background Art

[0002] A signal machine is a trackside basic device for railways and urban rail transit. In a railway signal system with ground signals as the main signals, it guides the driver to run according to the display of the signal machine and is one of the important components of the railway signal system.

[0003] In a depot or a parking lot, signal machines are often installed to ensure the safe and orderly operation of trains in the depot or the parking lot. Through appropriate signal machine design, installation, and maintenance, the train flow in the depot or the parking lot can be effectively managed, and overall safety and efficient operation can be guaranteed. As shown in Figure 1 Since the cables 20 in the depot or the parking lot are generally laid through underground corridors, when it is necessary to install a signal machine beside the track, a foundation pit 10 is excavated to connect with the underground corridor, the cable 20 is led into the foundation pit 10, the cable 20 is connected to a junction box, the junction box includes a distribution box 6 and a terminal box 7, and then the output line 30 of the junction box is connected to the signal machine 5. Among them, multiple groups of supports are also arranged in the foundation pit to respectively support the distribution box 6, the terminal box 7, and the signal machine 5.

[0004] However, since multiple groups of supports need to be arranged in the foundation pit, when constructing the supports, the operators need to go down into the foundation pit for construction, which is extremely inconvenient. This not only increases the construction procedures and labor costs, but also makes it difficult to install multiple groups of supports due to the unevenness of the bottom of the foundation pit. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a combined trackside support and signal machine device for a pit without backfilling to solve the problems in the background art that when installing a signal machine, multiple groups of supports need to be arranged in the foundation pit, and when constructing the supports, the operators need to go down into the foundation pit for construction, which is extremely inconvenient, not only increasing the construction procedures and labor costs, but also making it difficult to install multiple groups of supports due to the unevenness of the bottom of the foundation pit.

[0006] In a first aspect, the utility model provides a combined trackside support for a pit without backfilling, which includes a support platform, the bottom of the support platform is installed in the foundation pit, and the top of the support platform extends upward to the outside of the foundation pit;

[0007] It further includes a first mounting rack and a second mounting rack, the first mounting rack and the second mounting rack are detachably connected to the top side of the support platform, and the first mounting rack and the second mounting rack are located above the ground;

[0008] The support platform is used to support the signal machine, the first mounting bracket is used to support the direction box, and the second mounting bracket is used to support the terminal box.

[0009] The combined trackside bracket described in this application includes a support platform. The bottom of the support platform is installed in the foundation pit, and the top of the support platform extends upward to the outside of the foundation pit, so that the support platform extends out of the foundation pit. The first mounting bracket and the second mounting bracket are detachably connected to the side of the top of the support platform, and the first mounting bracket and the second mounting bracket are located above the ground. The support platform is used to support the signal machine, the first mounting bracket is used to support the direction box, and the second mounting bracket is used to support the terminal box. By cooperating with the support platform, the first mounting bracket and the second mounting bracket, the direction box and the terminal box are indirectly installed on the support platform, so as to realize the support of the signal machine, the direction box and the terminal box through the support platform, reduce the bracket setting, reduce the working time of the operators in the foundation pit during construction, simplify the operation, not only reduce the construction process and labor cost, but also, since only a group of support platforms need to be installed at the bottom of the foundation pit, reduce the number of bracket installations, reduce the installation difficulty of the brackets at the bottom of the foundation pit, and accelerate the bracket installation efficiency.

[0010] Preferably, the first mounting bracket includes two bent rods arranged oppositely. One end of the two bent rods close to the support platform forms a connecting part, and the connecting part is used for detachably connecting with the support platform;

[0011] One end of the two bent rods far from the support platform forms a mounting part, and the mounting part is used for mounting the direction box.

[0012] Preferably, the bent rod includes a first vertical section, a horizontal section and a second vertical section connected in sequence. The two oppositely arranged first vertical sections form the connecting part;

[0013] The first vertical section is connected to the support platform by bolts.

[0014] Preferably, the two oppositely arranged second vertical sections form the mounting part;

[0015] Bolting holes corresponding to the direction box are arranged on the second vertical section.

[0016] Preferably, the first vertical section, the horizontal section and the second vertical section are all made of angle steel

[0017] Preferably, the second mounting bracket includes a horizontal rod, an inclined rod and a vertical rod. The horizontal rod, the inclined rod and the vertical rod form a triangular structure;

[0018] The vertical rod is connected to the support platform by bolts.

[0019] Preferably, the horizontal rod is located above the top of the support platform;

[0020] The horizontal rod is provided with bolt holes corresponding to the terminal box.

[0021] Preferably, the horizontal rod, the inclined rod and the vertical rod are all made of angle steel.

[0022] Preferably, the support platform is of a frame structure.

[0023] In a second aspect, the present utility model provides a signal machine device for a non-backfill foundation pit, including a semi-high column, a signal machine, the direction box, the terminal box and the combined trackside support of the present application,

[0024] The semi-high column is installed on the top of the support platform, the signal machine is installed on the top of the semi-high column, the direction box is installed on the first mounting frame, the terminal box is installed on the second mounting frame, and the direction box and the terminal box are located above the ground.

[0025] For the signal machine device of the present application, a semi-high column is installed on the top of the support platform, a signal machine is installed on the top of the semi-high column, and the signal machine guides the operation of the train through different light signals to ensure the safe, efficient and orderly operation of the train on the track. The semi-high column is used to install the signal machine. The direction box is installed on the first mounting frame, and the terminal box is installed on the second mounting frame. The direction box and the terminal box are located above the ground. Thus, the direction box and the terminal box are indirectly installed on the support platform, realizing the support of the signal machine, the direction box and the terminal box through the support platform, reducing the setting of brackets, and reducing the operation time of the operators in the foundation pit during construction. At the same time, since the direction box and the terminal box are connected to the support platform through the first mounting frame and the second mounting frame, it is not necessary to excavate a large foundation pit, which can reduce the excavation area of the foundation pit, save construction costs and speed up construction efficiency. Further, other accessory components can also be installed on the support platform by adding mounting frames to increase the functions of the signal machine.

[0026] Compared with the prior art, the beneficial effects of the present utility model are:

[0027] 1. The combined trackside support described in this application includes a support platform. The bottom of the support platform is installed in the foundation pit, and the top of the support platform extends upward to the outside of the foundation pit, so that the support platform protrudes outside the foundation pit. The first mounting frame and the second mounting frame are detachably connected to the top side of the support platform, and the first mounting frame and the second mounting frame are above the ground. The support platform is used to support the signal machine, the first mounting frame is used to support the direction box, and the second mounting frame is used to support the terminal box. By cooperating with the first mounting frame and the second mounting frame through the support platform, the direction box and the terminal box are indirectly installed on the support platform, realizing the support of the signal machine, the direction box, and the terminal box through the support platform, reducing the number of supports, reducing the working time of the operators in the foundation pit during construction, simplifying the operation, not only reducing the construction process and labor costs, but also, since only a set of support platforms need to be installed at the bottom of the foundation pit, reducing the number of support installations, reducing the installation difficulty of the supports at the bottom of the foundation pit, and accelerating the support installation efficiency.

[0028] 2. For the signal machine device described in this application, a semi-high column is installed on the top of the support platform, and a signal machine is installed on the top of the semi-high column. The signal machine guides the operation of the train through different light signals to ensure the safe, efficient, and orderly operation of the train on the track. The semi-high column is used to install the signal machine. The direction box is installed on the first mounting frame, and the terminal box is installed on the second mounting frame, and the direction box and the terminal box are above the ground, so that the direction box and the terminal box are indirectly installed on the support platform, realizing the support of the signal machine, the direction box, and the terminal box through the support platform, reducing the number of supports, reducing the working time of the operators in the foundation pit during construction. At the same time, since the direction box and the terminal box are connected to the support platform through the first mounting frame and the second mounting frame, it is not necessary to excavate a large foundation pit, which can reduce the excavation area of the foundation pit, save construction costs, and accelerate construction efficiency. Further, other accessory components can also be installed on the support platform by adding mounting frames to increase the functions of the signal machine. Description of the Drawings

[0029] Figure 1 is a schematic diagram of the existing signal machine installation in the background art.

[0030] Figure 2 is a schematic diagram of the signal machine installation of this application.

[0031] Figure 3 is Figure 2 the top view of the signal machine.

[0032] Figure 4 is a schematic diagram of the structure of the combined trackside support of this application.

[0033] Figure 5 is Figure 4 the top view of

[0034] Figure 6 It is a schematic structural diagram of the support platform.

[0035] Figure 7 It is a schematic structural diagram of the first mounting bracket.

[0036] Figure 8 It is a schematic structural diagram of the second mounting bracket.

[0037] Markings in the figure:

[0038] 1 - Support platform, 11 - Top plate, 12 - Vertical rod, 13 - Connecting plate, 14 - Bottom plate, 2 - First mounting bracket, 21 - Bent rod, 211 - First vertical section, 212 - Horizontal section, 213 - Second vertical section, 3 - Second mounting bracket, 31 - Horizontal rod, 32 - Inclined rod, 33 - Vertical rod, 4 - Half-height column, 5 - Signal machine, 6 - Directional box, 7 - Terminal box, 8 - Fixed foundation, 9 - Anti-slip stool, 10 - Foundation pit, 20 - Cable, 30 - Output line, 40 - Cover plate. Detailed implementation manners

[0039] The following further describes the present utility model in detail with reference to specific embodiments. However, this should not be construed as limiting the scope of the above-mentioned subject matter of the present utility model to the following embodiments. All technologies implemented based on the content of the present utility model fall within the scope of the present utility model.

[0040] In the description of the specific embodiments of the present utility model, without special explanation, the expression terms of orientation or positional relationship such as "upper", "lower", "left", "right", "center", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product / device / equipment of this utility model is usually placed. These terms of orientation or positional relationship are only for the convenience of describing the solution of the present utility model or simplifying the description in the specific embodiments, facilitating technicians to quickly understand the solution, rather than indicating or implying that a specific device / component / element must have a specific orientation or be constructed and operated in a specific positional relationship. Therefore, it should not be construed as a limitation to the present utility model.

[0041] In addition, when terms such as "horizontal", "vertical", "hanging", "parallel" appear, it does not mean that the corresponding device / component / element is required to be absolutely horizontal or vertical or hanging or parallel, but it can be slightly inclined or deviated. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and it does not mean that the structure must be completely horizontal, but it can be slightly inclined. Or, it can be simply understood that the corresponding device / component / element is arranged in directions such as "horizontal", "vertical", "hanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the solution of the present utility model.

[0042] In addition, when expressions such as "first", "second", "third", etc. appear in the terms, they are only used to distinguish the description of the same or similar components, and should not be understood as emphasizing or implying the relative importance of specific components.

[0043] In addition, in the description of the embodiments of the present utility model, "several", "multiple", "a number of" represent at least 2. It can be any situation such as 2, 3, 4, 5, 6, 7, 8, 9, etc., and even can be a situation exceeding 9.

[0044] In addition, in the description of the technical solution of the present utility model, unless otherwise clearly specified / defined / restricted, where terms such as "arranged", "installed", "connected", "linked", "provided with", "laid", "disposed" appear, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be connection means commonly used in the art such as welding, riveting, bolting, threaded connection, etc. Such a connection can be a mechanical connection, an electrical connection or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components.

[0045] Embodiment 1

[0046] As Figures 2 - 5 shown, this embodiment discloses a combined trackside support for a backfill-free foundation pit, including a support platform 1, the bottom of the support platform 1 is installed in the foundation pit 10, and the top of the support platform 1 extends upward to the outside of the foundation pit 10;

[0047] It further includes a first mounting frame 2 and a second mounting frame 3. The first mounting frame 2 and the second mounting frame 3 are detachably connected to the top side of the support platform 1, and the first mounting frame 2 and the second mounting frame 3 are above the ground

[0048] The support platform 1 is used to support the signal machine 5, the first mounting bracket 2 is used to support the direction box 6, and the second mounting bracket 3 is used to support the terminal box 7.

[0049] The bottom of the support platform 1 is installed in the foundation pit 10, and the top of the support platform 1 extends upward to the outside of the foundation pit 10, so that the support platform 1 extends out of the foundation pit 10. The first mounting bracket 2 and the second mounting bracket 3 are detachably connected to the top side of the support platform 1, and the first mounting bracket 2 and the second mounting bracket 3 are located above the ground. The support platform 1 is used to support the signal machine 5, the first mounting bracket 2 is used to support the direction box 6, and the second mounting bracket 3 is used to support the terminal box 7. By cooperating the support platform 1 with the first mounting bracket 2 and the second mounting bracket 3, the direction box 6 and the terminal box 7 are indirectly installed on the support platform 1, so as to realize supporting the signal machine 5, the direction box 6 and the terminal box 7 through the support platform 1, reducing the bracket setting, reducing the working time of the operators in the foundation pit 10 during construction, simplifying the operation, not only reducing the construction process and labor cost, but also, since only a group of support platforms 1 need to be installed at the bottom of the foundation pit 10, reducing the number of bracket installations, reducing the installation difficulty of the brackets at the bottom of the foundation pit 10, and accelerating the bracket installation efficiency.

[0050] In one or several embodiments, as Figure 4 、 Figure 5 shown, the first mounting bracket 2 includes two bent rods 21 arranged oppositely. One ends of the two bent rods 21 close to the support platform 1 form a connecting part, and the connecting part is used for detachably connecting with the support platform 1;

[0051] One ends of the two bent rods 21 far from the support platform 1 form a mounting part, and the mounting part is used for mounting the direction box 6.

[0052] The bent rods 21 are installed on the support platform 1, and then the direction box 6 is installed on the bent rods 21, so as to indirectly install the direction box 6 on the support platform 1, and make the support platform 1 support the direction box 6 above the ground.

[0053] In an optional embodiment, as Figure 7 shown, wherein, Figure 7 a is a side view of the bent rod 21, Figure 7 b is a top view of the bent rod 21. The bent rod 21 includes a first vertical section 211, a horizontal section 212 and a second vertical section 213 connected in sequence. Two oppositely arranged first vertical sections 211 form a connecting part;

[0054] The first vertical section 211 is connected to the support platform 1 by bolts.

[0055] Two oppositely arranged second vertical sections 213 form a mounting part;

[0056] The second vertical section 213 is provided with bolt holes corresponding to the dividing box 6.

[0057] Among them, as Figure 7 shown in b, the first vertical section 211 is connected to the inner end of the horizontal section 212, and the second vertical section 213 is connected to the outer end of the horizontal section 212, so that the bent rod 21 is in a zigzag shape;

[0058] Two oppositely arranged bent rods 21 form the first mounting bracket 2, two oppositely arranged first vertical sections 211 form the connecting part, and two oppositely arranged second vertical sections 213 form the mounting part;

[0059] The distance between the two first vertical sections 211 is smaller than the distance between the two second vertical sections 213. The first vertical section 211 is connected to the support platform 1 by bolts. Further, as Figure 5 shown, the two first vertical sections 211 are installed on the front and rear sides of the top of the support platform 1;

[0060] The second vertical section 213 is provided with bolt holes corresponding to the dividing box 6. The dividing box 6 is placed on the second vertical section 213, and then the dividing box 6 is fixed to the second vertical section 213 by bolts.

[0061] In an alternative embodiment, the distance between the two second vertical sections 213 is adjusted by adjusting the length of the horizontal section 212 to adapt to the installation of dividing boxes 6 of different sizes.

[0062] In an alternative embodiment, the first vertical section 211, the horizontal section 212, and the second vertical section 213 are all made of angle steel.

[0063] In one or several embodiments, as Figure 8 shown, among them, Figure 8 a is a side view of the second mounting bracket 3, Figure 8 b is a front view of the second mounting bracket 3, Figure 8 c is a top view of the second mounting bracket 3;

[0064] The second mounting bracket 3 includes a horizontal rod 31, an inclined rod 32, and a vertical rod 33. The horizontal rod 31, the inclined rod 32, and the vertical rod 33 form a triangular structure;

[0065] The vertical rod 33 is connected to the support platform 1 by bolts.

[0066] The horizontal rod 31 is located above the top of the support platform 1;

[0067] The horizontal rod 31 is provided with bolt holes corresponding to the terminal box 7.

[0068] The vertical rod 33 is connected to the support platform 1 by bolts, and the horizontal rod 31 is positioned above the top of the support platform 1. Then, the terminal box 7 is installed on the horizontal rod 31, thereby indirectly installing the terminal box 7 on the support platform 1, enabling the support platform 1 to support the terminal box 7 above the ground.

[0069] Among them, bolt holes are provided on the side surface of the vertical rod 33, and the vertical rod 33 is connected to the right side surface of the support platform 1 by bolts, as Figure 5 ;

[0070] The horizontal rod 31 is connected above the vertical rod 33, and the horizontal rod 31 is positioned above the top of the support platform 1. Bolt holes corresponding to the terminal box 7 are provided on the horizontal rod 31, and the terminal box 7 is installed on the horizontal rod 31 by bolts.

[0071] In an alternative embodiment, the horizontal rod 31, the inclined rod 32, and the vertical rod 33 are all made of angle steel.

[0072] In one or several embodiments, as Figure 6 shown, among which, Figure 6 a is the front view of the support platform 1, Figure 6 b is the side view of the support platform 1,

[0073] The support platform 1 is of a frame structure.

[0074] Among them, as Figure 6 shown, the support platform 1 includes a plurality of vertical rods 12. The adjacent vertical rods 12 are reinforced by connecting plates 13. A top plate 11 is connected to the top of the vertical rods 12, and the top plate 11 is used to connect to the semi-high column 4. The bottom of the vertical rods 12 is connected to a bottom plate 14, and the bottom plate 14 is used to be installed on the fixed foundation 8 at the bottom of the foundation pit 10.

[0075] As Figure 6 shown in a, horizontal bolt holes are provided on the connecting plate 13 below the top plate 11. As Figure 5 shown, the first vertical section 211 of the bent rod 21 is connected to this connecting plate 13 by bolts.

[0076] As Figure 6 shown in b, vertical bolt holes are provided on the top of the vertical rod 12, and the vertical rod 33 of the second mounting bracket 3 is connected to the top of the vertical rod 12 by bolts.

[0077] Embodiment 2

[0078] As Figures 2 - 5 shown, a signal machine device for a non-backfilled foundation pit includes a semi-high column 4, a signal machine 5, a direction box 6, a terminal box 7, and a combined trackside bracket as described in any of the above.

[0079] A semi-height column 4 is installed on the top of the support platform 1, a signal machine 5 is installed on the top of the semi-height column 4, a direction box 6 is installed on the first mounting rack 2, a terminal box 7 is installed on the second mounting rack 3, and the direction box 6 and the terminal box 7 are located above the ground.

[0080] The signal machine 5 guides the operation of the train through different light signals to ensure the safe, efficient and orderly operation of the train on the track. The semi-height column 4 is used to install the signal machine 5. The direction box 6 is installed on the first mounting rack 2, and the terminal box 7 is installed on the second mounting rack 3. The direction box 6 and the terminal box 7 are located above the ground, so that the direction box 6 and the terminal box 7 are indirectly installed on the support platform 1, realizing the support of the signal machine 5, the direction box 6 and the terminal box 7 through the support platform 1, reducing the bracket setting and reducing the operation time of the operators in the foundation pit during construction.

[0081] Furthermore, since the direction box 6 and the terminal box 7 are connected to the support platform 1 through the first mounting rack 2 and the second mounting rack 3, it is not necessary to excavate a large foundation pit 10, which can reduce the excavation area of the foundation pit 10, save construction costs and speed up construction efficiency. Furthermore, other accessory components can also be installed on the support platform 1 by adding mounting racks to increase the functions of the signal machine.

[0082] The semi-height column 4 has various heights. Select the corresponding semi-height column 4 according to the height requirement of the signal machine 5, and then install the signal machine 5 on the semi-height column 4 so that the lights displayed by the signal machine 5 can be seen by the train driver. Among them, the signal machine 5 is similar to a traffic control light, displaying green, yellow and red lights, and indicating whether the train can pass, slow down or stop through lights of different colors.

[0083] This embodiment also discloses a construction method for installing the signal machine device of the present application. The specific steps are as follows:

[0084] Step 1: Process a set of combined trackside equipment brackets for the foundation pit 10 without backfilling according to the reserved size of the foundation pit 10 and the parameters of the installation height of the 50 kg / m rail, as Figure 4 shown;

[0085] Step 2: After the signal cable is laid at the reserved foundation pit 10 according to the outdoor cable routing diagram, complete the installation of the support platform 1 according to the clearance requirements of trackside equipment construction;

[0086] Step 3: Select the corresponding first mounting rack 2 according to the prepared support platform 1, complete the fixation of the first mounting rack 2 and the support platform 1, complete the fixation of the direction box 6 and the first mounting rack 2, and complete the termination and wiring of the signal cable;

[0087] Step 4: According to the prepared support platform 1, complete the installation of the semi-height column 4 and the installation of the signal machine 5;

[0088] Step Five: Select the corresponding second mounting bracket 3 according to the model of the terminal box 7, fix the second mounting bracket 3 to the support platform 1, fix the terminal box 7 and the second mounting bracket 3, and fix the terminal box 7 to the flange of the semi-height column 4 to complete the termination and wiring of the signal cable;

[0089] Step Six: According to the completed support platform 1, complete the fixation of the axle counter box bracket and the support platform, complete the fixation of the axle counter box and its bracket, and complete the termination and wiring of the signal cable;

[0090] Step Seven: According to the reserved size of the foundation pit 10 and the occupied area of the trackside equipment, complete the installation of the anti-slip cross-hatched steel plate bracket, complete the fixation of the cut anti-slip cross-hatched steel plate, that is, install the anti-slip stool 9 on one side of the direction box 6.

[0091] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A combined trackside support for backfill-free foundation pit, characterized in that: It comprises a support platform (1), the bottom of the support platform (1) is installed in a foundation pit (10), and the top of the support platform (1) extends upward to the outside of the foundation pit (10); The device further comprises a first mounting frame (2) and a second mounting frame (3), wherein the first mounting frame (2) and the second mounting frame (3) are detachably connected to the top side of the support platform (1), and the first mounting frame (2) and the second mounting frame (3) are located above the ground. The supporting platform (1) is used to support a signal machine (5), the first mounting frame (2) is used to support a direction dividing box (6), and the second mounting frame (3) is used to support a terminal box (7).

2. The combined trackside support for backfill-free foundation pit according to claim 1, characterized in that: The first mounting frame (2) comprises two bent rods (21) arranged opposite to each other, and one end of the two bent rods (21) close to the supporting platform (1) forms a connecting portion, and the connecting portion is used for being detachably connected to the supporting platform (1); One end of the two bent rods (21) away from the support platform (1) forms a mounting portion, and the mounting portion is used to mount the direction dividing box (6).

3. The combined trackside support for backfill-free foundation pit according to claim 2, characterized in that: The bending rod (21) comprises a first vertical section (211), a transverse section (212) and a second vertical section (213) which are connected in sequence, and two oppositely arranged first vertical sections (211) form the connecting portion; The first vertical section (211) is connected to the supporting platform (1) by means of bolts.

4. The combined trackside support for backfill-free foundation pit according to claim 3, characterized in that: Two oppositely arranged second vertical sections (213) form the mounting portion; The second vertical section (213) is provided with bolt holes corresponding to the direction dividing box (6).

5. The combined trackside support for backfill-free foundation pit according to claim 4, characterized in that: The first vertical section (211), the transverse section (212) and the second vertical section (213) are all made of angle steel.

6. The combined trackside support for backfill-free foundation pit according to claim 1, characterized in that: The second mounting frame (3) comprises a horizontal rod (31), an inclined rod (32) and a vertical rod (33), wherein the horizontal rod (31), the inclined rod (32) and the vertical rod (33) form a triangular structure; The vertical rod (33) is connected to the supporting platform (1) via bolts.

7. The combined trackside support for backfill-free foundation pit according to claim 6, characterized in that: The horizontal rod (31) is located above the top of the supporting platform (1); The horizontal rod (31) is provided with bolt holes corresponding to the terminal box (7).

8. The combined trackside support for backfill-free foundation pit according to claim 7, characterized in that: The horizontal rod (31), the inclined rod (32) and the vertical rod (33) are all made of angle steel.

9. The combined trackside support for backfill-free foundation pit according to claim 1, characterized in that: The supporting platform (1) is a frame structure.

10. A signal device for backfill-free foundation pit, characterized in that: It comprises a half-height column (4), the signal machine (5), the direction dividing box (6), the terminal box (7) and the combined trackside bracket according to any one of claims 1 to 9, The half-height column (4) is installed on the top of the support platform (1), the signal machine (5) is installed on the top of the half-height column (4), the direction dividing box (6) is installed on the first mounting frame (2), the terminal box (7) is installed on the second mounting frame (3), and the direction dividing box (6) and the terminal box (7) are located above the ground.

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