Subway support

Abstract

The utility model discloses a subway support which comprises a support body, and the support body comprises a plurality of sets of supporting mechanisms and pedal pieces. The supporting mechanism comprises a mounting transverse rod and a vertical rod adjusting assembly, the mounting transverse rod is transversely arranged, and a first connecting lug is arranged at one end of the mounting transverse rod and connected with a first positioning groove formed in the inner wall of the subway tunnel. The bottom of the other end of the mounting cross rod is provided with a second connecting lug and is connected with a pin shaft at the top end of the vertical rod adjusting assembly through the second connecting lug, and the upper ends of the mounting cross rods in the supporting mechanisms are fixedly connected with the pedal part; a movable shaft is arranged at the top end of the vertical rod adjusting assembly, the vertical rod adjusting assembly is in pin shaft connection with the second connecting lug through the movable shaft, a third connecting lug is arranged at the bottom end of the vertical rod adjusting assembly, and the third connecting lug is connected with a second positioning groove formed in the inner wall of the subway tunnel; the second positioning groove corresponds to the first positioning groove, and the second positioning groove is located below the first positioning groove.

Description

Technical Field

[0001] The utility model relates to the field of subway tunnel construction, in particular to a subway bracket. Background Art

[0002] With the rapid development of China's economy, ground transportation can no longer meet people's needs to go out, and more and more modes of transportation have emerged, such as viaducts, subways, etc. The emergence of subways has greatly alleviated people's pressure to go out.

[0003] During the construction of subway tunnels, it is necessary to carry out construction work on the inner wall of the subway tunnel. Patent No. ZL202220593355.6 discloses a simple portal bracket for cross-construction of urban subway track areas, which can realize the construction operation on the inner wall of the subway tunnel. However, the bracket structure is set up inside the entire subway tunnel, the assembly structure is complex, and the assembly efficiency is low; at the same time, the bracket structure will hinder the traffic conditions of the subway tunnel, affect the progress of other construction work in the subway tunnel, and affect the overall construction efficiency of the subway tunnel. It is necessary to improve it. Summary of the invention

[0004] The utility model aims to solve the above problems and provide a subway bracket which has a simple structure and is convenient to use.

[0005] In order to achieve the above purpose, the technical solution of the utility model is:

[0006] A subway support, comprising a support frame, the support frame comprising a plurality of groups of support mechanisms arranged at equal intervals along the axial direction of a subway tunnel, and pedal members fixed at the top of the plurality of groups of support mechanisms and used for stepping on for construction; the support mechanism comprises a mounting cross bar and a vertical rod adjustment assembly, the mounting cross bar is arranged horizontally, one end of the mounting cross bar is provided with a first connecting ear, the first connecting ear is connected to a first positioning groove arranged on the inner wall of the subway tunnel through a first expansion bolt, a second connecting ear is arranged at the bottom of the other end of the mounting cross bar and is connected to a pin shaft at the top of the vertical rod adjustment assembly through the second connecting ear, the upper ends of the mounting cross bars in the plurality of groups of support mechanisms are fixedly connected to the pedal member; a movable shaft is arranged at the top of the vertical rod adjustment assembly and is connected to the pin shaft of the second connecting ear through the movable shaft, a third connecting ear is arranged at the bottom of the vertical rod adjustment assembly, the third connecting ear is connected to a second positioning groove arranged on the inner wall of the subway tunnel through a second expansion bolt; the second positioning groove is arranged corresponding to the first positioning groove and the second positioning groove is located below the first positioning groove.

[0007] Furthermore, the vertical rod adjustment assembly includes a control sleeve, an upper screw, and a lower screw. The top end of the upper screw is provided with a movable shaft and is connected to the second connecting ear pin shaft through the movable shaft. The bottom end of the upper screw is inserted into the inner side of the top end of the control sleeve and the upper screw is threadedly connected to the inner wall of the upper end of the control sleeve; the bottom end of the lower screw is provided with a third connecting ear and is connected to the second positioning groove of the inner wall of the subway tunnel through the third connecting ear, the top end of the lower screw is inserted into the inner side of the bottom end of the control sleeve and the lower screw is threadedly connected to the inner wall of the lower end of the control sleeve; the thread rotation directions of the inner wall of the upper end of the control sleeve and the inner wall of the lower end of the control sleeve are opposite.

[0008] Furthermore, a handle is welded on the outer side wall of the control sleeve to facilitate the rotation of the control sleeve.

[0009] Furthermore, a first inclined surface is arranged in an inclined shape in the first positioning groove, the first connecting ear is arranged in an inclined shape and is parallel to the first inclined surface, and the first connecting ear is connected to the first inclined surface through a first expansion bolt after contacting the first inclined surface; a second inclined surface is arranged in an inclined shape in the second positioning groove, the third connecting ear is arranged in an inclined shape and is parallel to the second inclined surface, and the third connecting ear is connected to the second inclined surface through a second expansion bolt after contacting the second inclined surface.

[0010] Furthermore, the upper end of the mounting cross bar is fixedly connected to a fixing pipe and is connected to a guardrail assembly through the fixing pipe; the guardrail assembly is located above the second connecting ear and is arranged on one side of the pedal member.

[0011] Furthermore, the guardrail assembly includes a plurality of guardrail cross bars and a plurality of guardrail vertical bars, and the plurality of guardrail vertical bars are arranged corresponding to the installation cross bars in the plurality of support mechanisms; the guardrail vertical bars are arranged longitudinally, and the bottom ends of the guardrail vertical bars are inserted into the fixed pipe fittings and are detachably connected to the fixed pipe fittings; the length direction of the guardrail cross bars is consistent with the length direction of the pedal member, and the plurality of guardrail cross bars are arranged in sequence along the height direction of the guardrail vertical bars, and the guardrail cross bars are bolted to the plurality of guardrail vertical bars.

[0012] Furthermore, the length of the third connecting ear is greater than the inner diameter of the second positioning groove; when the third connecting ear rotates downward, the side wall of the third connecting ear abuts against the inner wall of the bottom end of the second positioning groove.

[0013] Compared with the prior art, the utility model has the following advantages and positive effects:

[0014] When the utility model is used, firstly, a first positioning groove and a second positioning groove are set on the inner wall of the subway tunnel, and then the first connecting ear at one end of the installation cross bar is lightly connected with the first positioning groove through the first expansion bolt, and the third connecting ear at the bottom end of the vertical rod adjustment component is lightly connected with the second positioning groove through the second expansion bolt, and then the vertical rod adjustment component is adjusted to change the height of the vertical rod adjustment component and drive the horizontal angle of the installation cross bar to change, until the installation cross bar is in a completely horizontal state, the first expansion bolt and the second expansion bolt are tightened, and finally the pedal member and the guardrail component are connected to the installation cross bar; the construction personnel can step on the pedal member to carry out construction work on the side wall of the subway tunnel, and the assembly structure is simple, and the assembly work of the entire construction bracket can be conveniently and quickly realized; and the bracket structure in the utility model is completely attached to the inner wall of the subway tunnel, will not occupy the overall space inside the subway tunnel, and will not hinder the traffic conditions of the subway tunnel, so that other construction operations in the subway tunnel can be carried out at the same time, which effectively improves the overall construction efficiency of the subway tunnel and brings convenience to the construction work of the subway tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 for Figure 1 A magnified view of the local structure;

[0018] Figure 3 This is the main structural diagram of the utility model;

[0019] Figure 4 It is a left-side structural diagram of the utility model. DETAILED DESCRIPTION

[0020] 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 of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work, any modifications, equivalent replacements, improvements, etc., should be included in the protection scope of the utility model.

[0021] like Figures 1 to 4 As shown, this embodiment discloses a subway support, including a support frame body, wherein the support frame body includes a plurality of support mechanisms arranged at equal intervals along the axial direction of a subway tunnel 1, and pedal members 5 fixed on the top of the plurality of support mechanisms and used for stepping on for construction;

[0022] The support mechanism includes a mounting cross bar 2 and a vertical bar adjustment assembly 3. The mounting cross bar 2 is arranged horizontally, and one end of the mounting cross bar 2 is provided with a first connecting ear 21, and the first connecting ear 21 is connected to a first positioning groove 11 arranged on the inner wall of the subway tunnel 1 through a first expansion bolt. A second connecting ear 22 is arranged at the bottom of the other end of the mounting cross bar 2 and is connected to the top pin of the vertical bar adjustment assembly 3 through the second connecting ear 22. The upper ends of the mounting cross bars 2 in several groups of support mechanisms are fixedly connected to the pedal member 5; a movable shaft 321 is arranged at the top of the vertical bar adjustment assembly 3 and is connected to the second connecting ear 22 through the movable shaft 321. A third connecting ear 331 is arranged at the bottom of the vertical bar adjustment assembly 3, and the third connecting ear 331 is connected to a second positioning groove 12 arranged on the inner wall of the subway tunnel 1 through a second expansion bolt; the second positioning groove 12 is arranged corresponding to the first positioning groove 11 and the second positioning groove 12 is located below the first positioning groove 11, and the first positioning groove 11 and the second positioning groove 12 are on the same circular line of the subway tunnel 1.

[0023] The vertical rod adjustment assembly 3 includes a control sleeve 31, an upper screw 32, and a lower screw 33. The upper screw 32 is provided with a movable shaft 321 at the top end and is pin-connected to the second connecting ear 22 through the movable shaft 321. The lower end of the upper screw 32 is inserted into the inner side of the top end of the control sleeve 31 and the upper screw 32 is threadedly connected to the inner wall of the upper end of the control sleeve 31. The lower end of the lower screw 33 is provided with a third connecting ear 331 and is connected to the second positioning groove 12 on the inner wall of the subway tunnel 1 through the third connecting ear 331. The upper end of the lower screw 33 is inserted into the inner side of the bottom end of the control sleeve 31 and the lower screw 33 is threadedly connected to the inner wall of the lower end of the control sleeve 31. The threads of the upper inner wall of the control sleeve 31 and the lower inner wall of the control sleeve 31 have opposite rotation directions.

[0024] A handle 311 is welded on the outer wall of the control sleeve 31 to facilitate the rotation of the control sleeve 31 .

[0025] By rotating the control sleeve, the upper screw and the lower screw can be moved closer or farther away at the same time, so that the height of the entire vertical rod adjustment assembly can be adjusted. When the height of the vertical rod adjustment assembly changes, the horizontal angle of the installation cross bar will also change. By adjusting the vertical rod adjustment assembly, the support mechanism can form a stable horizontal support surface, which is convenient for stable support operation of the pedal member.

[0026] The first positioning groove 11 is provided with a first inclined surface 111 which is inclined, the first connecting ear 21 is inclined and parallel to the first inclined surface 111, and the first connecting ear 21 is connected to the first inclined surface 111 through a first expansion bolt after contacting the first inclined surface 111; the second positioning groove 12 is provided with a second inclined surface 121 which is inclined, the third connecting ear 331 is inclined and parallel to the second inclined surface 121, and the third connecting ear 331 is connected to the second inclined surface 121 through a second expansion bolt after contacting the second inclined surface 121.

[0027] This design can increase the friction between the first connecting ear and the first inclined surface, and between the third connecting ear and the second inclined surface, thereby increasing the structural stability between the support mechanism and the inner wall of the subway tunnel; it not only facilitates the relative rotation of the first connecting ear and the third connecting ear with respect to the positioning groove when the support mechanism is leveled, but also avoids the situation in which the first connecting ear and the third connecting ear rotate relative to the positioning groove during the use of the construction bracket, further improving the use effect of the utility model.

[0028] The length of the third connecting ear 331 is greater than the inner diameter of the second positioning groove 12; during the construction process, when the third connecting ear rotates downward due to the loosening of the expansion bolt, the side wall of the third connecting ear will abut against the inner wall of the bottom end of the second positioning groove, and no large rotation will occur, thereby ensuring that the supporting structure of the entire construction bracket is not damaged, thereby ensuring that the safety of the construction workers is not affected.

[0029] The upper end of the mounting cross bar 2 is fixedly connected with a fixing pipe 23 and is connected with a guardrail assembly 4 through the fixing pipe 23 ; the fixing pipe 23 is located above the second connecting ear 22 , and the guardrail assembly 4 is arranged on one side of the pedal member 5 .

[0030] The guardrail assembly 4 includes a plurality of guardrail cross bars 42 and a plurality of guardrail vertical bars 41, and the plurality of guardrail vertical bars 41 are arranged corresponding to the installation cross bars 2 in the plurality of support mechanisms; the guardrail vertical bars 41 are arranged longitudinally, the bottom ends of the guardrail vertical bars 41 are inserted into the fixed pipe fittings 23 and are detachably connected to the fixed pipe fittings 23, and the upper ends of the guardrail vertical bars 41 are connected to a plurality of guardrail cross bars 42; the length direction of the guardrail cross bars 42 is consistent with the length direction of the pedal member 5, and the plurality of guardrail cross bars 42 are arranged in sequence along the height direction of the guardrail vertical bars 4], and the guardrail cross bars 42 are bolted to the plurality of guardrail vertical bars 41.

[0031] The guardrail structure can improve the construction safety of construction workers. At the same time, the guardrail structure and the supporting mechanism are detachable connection structures, which facilitates construction assembly and subsequent disassembly and storage operations, and further improves the use effect of the utility model.

[0032] When the utility model is used, firstly, a first positioning groove and a second positioning groove are set on the inner wall of the subway tunnel, and then the first connecting ear at one end of the installation cross bar is lightly connected with the first positioning groove through the first expansion bolt, and the third connecting ear at the bottom end of the vertical rod adjustment component is lightly connected with the second positioning groove through the second expansion bolt, and then the vertical rod adjustment component is adjusted to change the height of the vertical rod adjustment component and drive the horizontal angle of the installation cross bar to change, until the installation cross bar is in a completely horizontal state, the first expansion bolt and the second expansion bolt are tightened, and finally the pedal member and the guardrail component are connected to the installation cross bar; the construction personnel can step on the pedal member to carry out construction work on the side wall of the subway tunnel, and the assembly structure is simple, and the assembly work of the entire construction bracket can be conveniently and quickly realized; and the bracket structure in the utility model is completely attached to the inner wall of the subway tunnel, will not occupy the overall space inside the subway tunnel, and will not hinder the traffic conditions of the subway tunnel, so that other construction operations in the subway tunnel can be carried out at the same time, which effectively improves the overall construction efficiency of the subway tunnel and brings convenience to the construction work of the subway tunnel.

Claims

1. A subway support, comprising a support frame, characterized in that: The support frame includes a plurality of support mechanisms arranged at equal intervals along the axial direction of the subway tunnel, and pedal members fixed at the top of the plurality of support mechanisms and used for stepping on for construction; the support mechanism includes a mounting cross bar and a vertical rod adjustment assembly, the mounting cross bar is arranged horizontally, one end of the mounting cross bar is provided with a first connecting ear, the first connecting ear is connected to a first positioning groove arranged on the inner wall of the subway tunnel through a first expansion bolt, a second connecting ear is arranged at the bottom of the other end of the mounting cross bar and is connected to a pin shaft at the top of the vertical rod adjustment assembly through the second connecting ear, the upper ends of the mounting cross bars in the plurality of support mechanisms are fixedly connected to the pedal member; a movable shaft is arranged at the top of the vertical rod adjustment assembly and is connected to the pin shaft of the second connecting ear through the movable shaft, a third connecting ear is arranged at the bottom of the vertical rod adjustment assembly, the third connecting ear is connected to a second positioning groove arranged on the inner wall of the subway tunnel through a second expansion bolt; the second positioning groove is arranged corresponding to the first positioning groove and the second positioning groove is located below the first positioning groove.

2. The subway support according to claim 1, characterized in that: The vertical rod adjustment assembly includes a control sleeve, an upper screw and a lower screw. The top end of the upper screw is provided with a movable shaft and is connected to the second connecting ear pin shaft through the movable shaft. The bottom end of the upper screw is inserted into the inner side of the top end of the control sleeve and the upper screw is threadedly connected to the inner wall of the upper end of the control sleeve. The bottom end of the lower screw is provided with a third connecting ear and is connected to the second positioning groove on the inner wall of the subway tunnel through the third connecting ear. The top end of the lower screw is inserted into the inner side of the bottom end of the control sleeve and the lower screw is threadedly connected to the inner wall of the lower end of the control sleeve. The thread rotation directions of the inner wall of the upper end of the control sleeve and the inner wall of the lower end of the control sleeve are opposite.

3. The subway support according to claim 2, characterized in that: A handle is welded on the outer side wall of the control sleeve to facilitate the rotation of the control sleeve.

4. The subway support according to claim 3, characterized in that: A first inclined surface is arranged in an inclined shape in the first positioning groove, the first connecting ear is arranged in an inclined shape and is parallel to the first inclined surface, and the first connecting ear is connected by a first expansion bolt after contacting the first inclined surface; a second inclined surface is arranged in an inclined shape in the second positioning groove, the third connecting ear is arranged in an inclined shape and is parallel to the second inclined surface, and the third connecting ear is connected by a second expansion bolt after contacting the second inclined surface.

5. The subway support according to claim 4, characterized in that: The upper end of the mounting cross bar is fixedly connected with a fixing pipe and is connected with a guardrail assembly through the fixing pipe; the guardrail assembly is located above the second connecting ear and is arranged on one side of the pedal member.

6. The subway support according to claim 5, characterized in that: The guardrail assembly includes a plurality of guardrail cross bars and a plurality of guardrail vertical bars, and the plurality of guardrail vertical bars are arranged corresponding to the installation cross bars in the plurality of support mechanisms; the guardrail vertical bars are arranged longitudinally, and the bottom ends of the guardrail vertical bars are inserted into the fixed pipe fittings and are detachably connected to the fixed pipe fittings; the length direction of the guardrail cross bars is consistent with the length direction of the pedal member, and the plurality of guardrail cross bars are arranged in sequence along the height direction of the guardrail vertical bars, and the guardrail cross bars are bolted to the plurality of guardrail vertical bars.

7. The subway support according to claim 6, characterized in that: The length of the third connecting ear is greater than the inner diameter of the second positioning groove; when the third connecting ear rotates downward, the side wall of the third connecting ear abuts against the inner wall of the bottom end of the second positioning groove.

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