Universal support for subway evacuation platform

Abstract

The utility model relates to the technical field of urban rail transit supports, in particular to a universal support of a subway evacuation platform, which comprises an arc-shaped supporting seat and a supporting cross beam arranged on the inner side of the arc-shaped supporting seat, and one end of the supporting cross beam is rotatably connected to the top of the inner side of the arc-shaped supporting seat through a mounting seat. The bottom of the other end of the supporting cross beam is movably connected with an inclined supporting rod, the inclined supporting rod is hinged to the bottom of the inner side of the arc-shaped supporting base, a supporting transverse plate is arranged on the top of the supporting cross beam, and the supporting transverse plate is connected with the supporting cross beam through a height adjusting mechanism. The problems that in the prior art, a support of a subway evacuation platform is limited in supporting strength, evacuation work of a large number of crowds is not facilitated, meanwhile, the height and angle adjusting function is not achieved, the situation that the evacuation platform is suspended or loosened easily occurs in the installation process, and consequently certain potential safety hazards exist are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of urban rail transit brackets, in particular to a general bracket for a subway evacuation platform. Background Technique

[0002] The construction of urban rail has greatly improved people's travel speed and provided convenience for people's lives. The laying of subway tracks requires the excavation of underground tunnels, and after the tunnel construction is completed, emergency evacuation platforms need to be installed on both sides of the tunnel. For the evacuation platforms, specific platform brackets are required for fixed support.

[0003] Chinese Patent No. CN221032734U discloses a general bracket for a subway evacuation platform, which includes a hinge shaft, a plurality of anchor bolts, a plurality of bolts, a base, a support and a telescopic joint. One side of the base overlaps with one side of the support, the base is hinged to the support through the hinge shaft, the outer surface of the telescopic joint is slidably connected to the inside of the support, and a plurality of through holes one arranged in a linear array are opened on both sides of the support and the outer surface of the telescopic joint. Corresponding bolts are bolted inside every three corresponding through holes one. The utility model has three parts: a base, a support and a telescopic joint. Through assembly methods such as anchor bolts, hinges and bolt connections, that is, by setting the telescopic joint, the length can be adjusted; at the same time, the base and the cross beam are disconnected and then connected through the hinge shaft to achieve the adjustability of the angle, so that it can be applicable to different tunnel installation scenarios, and become a standard component product that can be produced at an industrial level and installed universally.

[0004] However, the general bracket for the subway evacuation platform of the above type has limited support strength, which is not conducive to the evacuation of a large number of people. Moreover, its height and angle cannot be adjusted during the installation process, and it is easy to appear in a loose or suspended state during installation, and cannot be closely attached to the evacuation platform to provide effective support force, resulting in the problem of potential safety hazards. Summary of the Invention

[0005] The purpose of the utility model is to provide a general bracket for a subway evacuation platform, which overcomes the problems in the prior art that the support strength of the bracket for the subway evacuation platform is limited, which is not conducive to the evacuation of a large number of people. At the same time, it does not have the functions of height and angle adjustment, and it is easy to have the situation of the evacuation platform being suspended or loose during the installation process, so there are certain safety hazards.

[0006] To achieve the above object, the technical solution adopted by the utility model to solve its technical problems is:

[0007] A universal bracket for subway evacuation platform is designed. The support beam is rotatably installed on the support seat. Its angle can be adaptively changed during the installation process, so that the support cross plate and the evacuation platform are always in a fit state. At the same time, the height adjustment mechanism can also be used to adjust the height of the support cross plate, further ensuring the effective support of the evacuation platform, improving its support strength, and enhancing its stability and firmness. The specific plan is as follows:

[0008] A universal bracket for a subway evacuation platform, comprising an arc-shaped support seat and a support beam arranged inside the arc-shaped support seat, wherein one end of the support beam is rotatably connected to the top of the inner side of the arc-shaped support seat through a mounting seat;

[0009] The bottom of the other end of the supporting crossbeam is movably connected with an oblique support rod, and the oblique support rod is hinged to the bottom of the inner side of the arc-shaped supporting seat;

[0010] A supporting cross plate is provided on the top of the supporting cross beam, and the supporting cross plate is connected to the supporting cross beam via a height adjustment mechanism.

[0011] Preferably, a plurality of pre-embedded reinforcement nails are equidistantly arranged on the outer side of the arc-shaped support seat.

[0012] Preferably, the mounting seat is mounted on the inner top of the arc-shaped support seat by bolts, a rotating shaft is welded on the mounting seat, and the rotating shaft is rotatably connected to the inner end of the supporting beam.

[0013] Preferably, a plurality of guide slide holes are provided through the extension direction of both sides of the top of the support beam, and a plurality of guide rods are provided in the extension direction of both sides of the bottom of the support horizontal plate, and the guide rods are slidably connected in the guide slide holes.

[0014] Preferably, the height adjustment mechanism is in two groups and is respectively arranged on the left and right sides of the support beam, and the height adjustment mechanism comprises a bidirectional threaded rod, a threaded guide block, a support rod, a first adjustment button and a fixing plate;

[0015] The number of the fixing plates is three, and they are equidistantly arranged on the side walls of the supporting crossbeam, the bidirectional threaded rod passes through the fixing plates in sequence from back to front, and the first adjusting button is connected to the rear end of the bidirectional threaded rod;

[0016] There are two threaded guide blocks, which are respectively threadedly connected to the bidirectional threaded rod and are located on both sides of the middle fixed plate;

[0017] There are two support rods, the lower ends of the two support rods are respectively hinged to the two threaded guide blocks, and the upper ends of the two support rods are respectively hinged to the side walls at the front and rear ends of the supporting cross plate.

[0018] Preferably, a cross chute is provided at the bottom of the front end of the support cross beam, and a cross slider is slidably connected in the cross chute;

[0019] The cross slider is threadedly connected with an adjusting rod, the inner end of the adjusting rod is rotatably connected with the inner end of the cross chute, and a second adjusting knob is provided at the outer end of the adjusting rod;

[0020] The bottom of the cross slider is connected to the upper end of the diagonal brace.

[0021] Preferably, a connecting block is hinged to the upper end of the diagonal brace, the connecting block is rotatably connected to the bottom of the cross slider, and the lower end of the diagonal brace is hinged to the inner bottom of the arc-shaped support base through a hinge seat.

[0022] The beneficial effects of the present utility model are as follows:

[0023] 1. The support cross beam in the present utility model can rotate, and during the actual installation and use process, the angle can change adaptively according to the evacuation platform, so that it can always be in a fitting state with the evacuation platform and provide effective support force for it.

[0024] 2. The height of the support cross plate of the present utility model can be adjusted by a height adjusting mechanism. During the adjustment process, the two threaded guide blocks are controlled to approach or move away from each other by a bidirectional threaded rod, so that the support cross plate can move up and down along the guide rod to meet the required installation height and enable the support cross plate to have the ability of effective support, ensuring the support strength of the bracket.

[0025] 3. The diagonal brace in the present utility model can be adjusted by an adjusting rod, so that the diagonal brace can provide sufficient support force at the bottom of the support cross beam, preventing the support cross beam from being easily deformed during use and losing the due support effect, and improving the safety performance of the bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is the left view of the present utility model;

[0027] Figure 2 is Figure 1 the cross-sectional schematic diagram at A-A in

[0028] Figure 3 is the structural schematic diagram of the bottom of the support cross beam in the present utility model.

[0029] In the figure: 1 - arc support base; 11 - embedded reinforcing nail; 2 - mounting base; 21 - rotating shaft; 3 - support cross beam; 31 - cross chute; 32 - guiding slide hole; 4 - diagonal brace; 41 - hinge seat; 42 - connecting block; 5 - support cross plate; 51 - guiding rod; 6 - height adjusting mechanism; 61 - bidirectional threaded rod; 62 - threaded guiding block; 63 - support rod; 64 - first adjusting knob; 65 - fixing plate; 7 - cross slider; 71 - adjusting rod; 72 - second adjusting knob. Detailed implementation mode

[0030] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in combination with embodiments and the accompanying drawings. The illustrative embodiments and descriptions thereof of the present utility model are only used to explain the present utility model and shall not be construed as a limitation to the present utility model.

[0031] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present utility model. However, it is obvious to those of ordinary skill in the art that the present utility model does not have to be implemented with these specific details. In other embodiments, well-known structures, circuits, materials or methods are not specifically described in order to avoid obscuring the present utility model.

[0032] Throughout the specification, the reference to "one embodiment", "embodiment", "one example" or "example" means that the specific features, structures or characteristics described in connection with the embodiment or example are included in at least one embodiment of the present utility model. Therefore, the phrases "one embodiment", "embodiment", "one example" or "example" appearing throughout the specification do not necessarily all refer to the same embodiment or example. In addition, the specific features, structures or characteristics can be combined in any appropriate combination and / or sub-combination in one or more embodiments or examples. In addition, those of ordinary skill in the art should understand that the drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0033] In the description of the present utility model, the orientation or positional relationship indicated by the terms "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "high", "low", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the protection scope of the present utility model.

[0034] Such as Figures 1-3As shown in the figure, the utility model provides a general bracket for a subway evacuation platform, including an arc-shaped support seat 1. The arc-shaped support seat 1 is adapted to the arc-shaped wall of the subway tunnel, so that it can be relatively fitted and installed on the tunnel wall to ensure the support strength. And a support cross beam 3 is arranged inside the arc-shaped support seat 1. One end of the support cross beam 3 is rotatably connected to the inner top of the arc-shaped support seat 1 through a mounting seat 2. The support cross beam 3 is used to support the evacuation platform, provide effective support force for the evacuation platform, and can rotate adaptively with the installation of the evacuation platform to facilitate the installation work. The bottom of the other end of the support cross beam 3 is movably connected with a diagonal brace 4. The diagonal brace 4 is hinged to the inner bottom of the arc-shaped support seat 1. The diagonal brace 4 plays an auxiliary support function for the distal end of the support cross beam 3, and can prevent the distal end of the support cross beam 3 from deforming due to excessive load. A support cross plate 5 is arranged on the top of the support cross beam 3. The support cross plate 5 is connected to the support cross beam 3 through a height adjustment mechanism 6. The support cross plate 5 is used to install the evacuation platform, and the installation height of the evacuation platform can be changed through the height adjustment mechanism 6, so that the evacuation platform can be effectively adjusted according to the installation requirements.

[0035] In the above solution, a plurality of embedded reinforcing nails 11 are equidistantly arranged on the outer side of the arc-shaped support seat 1.

[0036] As an optimized technical solution of the utility model, the embedded reinforcing nails 11 can be poured into the wall of the subway tunnel through concrete, and then the arc-shaped support seat 1 can be ensured to have sufficient support strength to install the evacuation platform, and the situation of insufficient support force will not occur during the evacuation process of a large number of people.

[0037] In the above solution, the mounting seat 2 is installed on the inner top of the arc-shaped support seat 1 through bolts. A rotating shaft 21 is welded on the mounting seat 2. The rotating shaft 21 is rotatably connected to the inner end of the support cross beam 3.

[0038] As an optimized technical solution of the utility model, by arranging the rotating shaft 21 rotatably connected to the support cross beam 3 on the mounting seat 2, the support cross beam 3 can be inclined at an angle as the evacuation platform inclines, and at the same time, it can also rotate with the deformation of the evacuation platform during the load-bearing process, having a certain buffering effect.

[0039] In the above solution, a plurality of guide sliding holes 32 are arranged through the top of both sides of the support cross beam 3 along the length direction. A plurality of guide rods 51 are arranged on the bottom of both sides of the support cross plate 5 along the length direction. The guide rods 51 are slidably connected in the guide sliding holes 32.

[0040] As an optimized technical solution of the utility model, when the height of the support cross plate 5 changes, it can move vertically with the cooperation relationship between the guide rods 51 and the guide sliding holes 32, and there will be no lateral movement, so as to ensure the stability of the bracket during the height adjustment process.

[0041] In the above solution, there are two sets of height adjustment mechanisms 6, which are respectively arranged on the left and right sides of the support cross beam 3. The height adjustment mechanism 6 includes a bidirectional threaded rod 61, a threaded guide block 62, a support rod 63, a first adjustment knob 64 and a fixing plate 65. The number of fixing plates 65 is three, and they are respectively arranged equidistantly on the side wall of the support cross beam 3. The bidirectional threaded rod 61 sequentially penetrates through the fixing plates 65 from back to front. The first adjustment knob 64 is connected to the rear end of the bidirectional threaded rod 61. The number of threaded guide blocks 62 is two. The two threaded guide blocks 62 are respectively threadedly connected to the bidirectional threaded rod 61 and are located on both sides of the middle fixing plate 65. The number of support rods 63 is two. The lower ends of the two support rods 63 are respectively hinged to the two threaded guide blocks 62, and the upper ends of the two support rods 63 are respectively hinged to the side walls of the front and rear ends of the support cross plate 5.

[0042] As an optimized technical solution of the present utility model, when it is necessary to adjust the height of the support cross plate 5, the first adjustment knob 64 can be rotated to drive the bidirectional threaded rod 61 to rotate. Then, the threaded guide block 62 can be driven to slide along the side wall of the support cross beam 3. Through the hinge relationship between the support rod 63, the threaded guide block 62 and the support cross plate 5, the support cross plate 5 can be raised or lowered in a state where the support rod 63 is propped up or tilted, so as to realize the adjustment of the height of the support cross plate 5, make the support cross plate 5 fit more closely with the bottom of the evacuation platform, provide effective support for the evacuation platform, and at the same time realize the stepped work of the height of the evacuation platform.

[0043] In the above solution, a cross-shaped sliding groove 31 is opened at the bottom of the front end of the support cross beam 3. A cross-shaped sliding block 7 is slidably connected in the cross-shaped sliding groove 31. The cross-shaped sliding block 7 is threadedly connected with an adjusting rod 71. The inner end of the adjusting rod 71 is rotatably connected to the inner end of the cross-shaped sliding groove 31. The outer end of the adjusting rod 71 is provided with a second adjustment knob 72. The bottom of the cross-shaped sliding block 7 is connected to the upper end of the diagonal support rod 4. The upper end of the diagonal support rod 4 is hinged with a connecting block 42. The connecting block 42 is rotatably connected to the bottom of the cross-shaped sliding block 7. The lower end of the diagonal support rod 4 is hinged to the inner bottom of the arc-shaped support seat 1 through a hinge seat 41.

[0044] As an optimized technical solution of the present utility model, in order to ensure the supporting force of the diagonal support rod 4, the second adjustment knob 72 can be rotated. Under the threaded connection relationship between the cross-shaped sliding block 7 and the adjusting rod 71, the cross-shaped sliding block 7 can be made to slide in the cross-shaped sliding groove 31, and then the supporting force of the diagonal support rod 4 can be adjusted. At the same time, the connecting block 42 hinged to the upper end of the diagonal support rod 4 is rotatably connected to the bottom of the cross-shaped sliding block 7 to prevent the support cross beam 3 from being stuck by the diagonal support rod 4 during the rotation process.

[0045] Specific implementation case:

[0046] During the installation and use of this bracket, the outer side of the arc-shaped support base 1 can be first fitted and installed on the wall of the subway tunnel, and the embedded strengthening nails 11 can be embedded in the tunnel wall through concrete to improve the support strength of the bracket.

[0047] Then, the mounting base 2 is installed and fixed on the inner top of the arc-shaped support base 1 through bolts, and the diagonal strut 4 is installed between the support cross beam 3 and the arc-shaped support base 1. By rotating the second adjustment knob 72, the cross slider 7 slides inward along the cross chute 31 under the action of the adjustment rod 71. Thus, the diagonal strut 4 can tightly abut between the free end of the support cross beam 3 and the inner bottom of the arc-shaped support base 1, providing sufficient support force for the free end of the support cross beam 3 and preventing the free end of the support cross beam 3 from bending and deforming under the load-bearing state, thereby reducing the support effect.

[0048] Finally, the height adjustment mechanism 6 is adjusted according to the installation height of the evacuation platform. By rotating the first adjustment knob 64, the threaded guide block 62 slides along the side wall of the support cross beam 3. Then, due to the hinge relationship between the support rod 63, the threaded guide block 62 and the support cross plate 5, the support cross plate 5 can be raised or lowered when the support rod 63 is propped up or tilted, so that the support cross plate 5 reaches the ideal installation height. Then, the evacuation platform can be installed on the support cross plate 5. To ensure the support strength, the support cross plate 5 can be further raised through the height adjustment mechanism 6 until they are closely fitted and firmly abut against each other, thereby improving the support strength and stability of the bracket.

[0049] The specific implementation manners described above further elaborate on the purpose, technical solutions, and beneficial effects of the present utility model. It should be understood that the above are only specific implementation manners of the present utility model and are not used to limit the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A universal bracket for a subway evacuation platform, comprising an arc-shaped support seat (1), and a supporting beam (3) arranged inside the arc-shaped support seat (1), characterized in that: One end of the supporting crossbeam (3) is rotatably connected to the inner top of the arc-shaped supporting seat (1) via a mounting seat (2); The bottom of the other end of the supporting crossbeam (3) is movably connected to an oblique support rod (4), and the oblique support rod (4) is hinged to the inner bottom of the arc-shaped supporting seat (1); A supporting transverse plate (5) is provided on the top of the supporting transverse beam (3), and the supporting transverse plate (5) and the supporting transverse beam (3) are connected via a height adjustment mechanism (6).

2. The universal bracket for a subway evacuation platform according to claim 1, characterized in that: A plurality of pre-embedded reinforcement nails (11) are arranged at equal intervals on the outside of the arc-shaped support seat (1).

3. The universal bracket of a subway evacuation platform according to claim 1, characterized in that: The mounting seat (2) is mounted on the inner top of the arc-shaped support seat (1) by means of bolts. A rotating shaft (21) is welded to the mounting seat (2). The rotating shaft (21) is rotatably connected to the inner end of the supporting crossbeam (3).

4. The universal bracket for a subway evacuation platform according to claim 1, characterized in that: A plurality of guide slide holes (32) are provided through the top of the support crossbeam (3) in the extension direction, and a plurality of guide rods (51) are provided on the bottom of the support cross plate (5) in the extension direction. The guide rods (51) are slidably connected in the guide slide holes (32).

5. The universal bracket for a subway evacuation platform according to claim 1, characterized in that: The height adjustment mechanism (6) is divided into two groups and is respectively arranged on the left and right sides of the support beam (3). The height adjustment mechanism (6) comprises a bidirectional threaded rod (61), a threaded guide block (62), a support rod (63), a first adjustment button (64) and a fixing plate (65); The number of the fixing plates (65) is three and they are equidistantly arranged on the side walls of the supporting crossbeam (3); the bidirectional threaded rod (61) passes through the fixing plates (65) in sequence from back to front; and the first adjusting button (64) is connected to the rear end of the bidirectional threaded rod (61); The number of the threaded guide blocks (62) is two, and the two threaded guide blocks (62) are respectively threadedly connected to the bidirectional threaded rod (61) and are located on both sides of the middle fixed plate (65); There are two support rods (63), the lower ends of the two support rods (63) are respectively hinged to the two threaded guide blocks (62), and the upper ends of the two support rods (63) are respectively hinged to the side walls at the front and rear ends of the support cross plate (5).

6. The universal bracket for a subway evacuation platform according to claim 1, characterized in that: A cross slide groove (31) is provided at the bottom of the front end of the support cross beam (3), and a cross slide block (7) is slidably connected in the cross slide groove (31); The cross slide block (7) is threadedly connected with an adjusting rod (71), the inner end of the adjusting rod (71) is rotatably connected to the inner end of the cross slide groove (31), and the outer end of the adjusting rod (71) is provided with a second adjusting button (72); The bottom of the cross slide block (7) is connected to the upper end of the diagonal support rod (4).

7. The universal bracket for a subway evacuation platform according to claim 6, characterized in that: The upper end of the diagonal support rod (4) is hinged with a connecting block (42), and the connecting block (42) is rotatably connected to the bottom of the cross slide block (7). The lower end of the diagonal support rod (4) is hinged to the inner bottom of the arc-shaped support seat (1) through a hinge seat (41).

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