Rail transit station foundation pit construction collapse risk automatic early warning device

Abstract

The utility model discloses a rail transit station foundation pit construction collapse risk automatic early warning device, and particularly relates to the technical field of rail safety construction, the rail transit station foundation pit construction collapse risk automatic early warning device comprises an early warning supporting rod, a mounting supporting plate is arranged at the lower end of the early warning supporting rod, a vertical limiting sliding block is arranged on the outer side end face of the early warning supporting rod, and a supporting partition plate is arranged in the middle of the inner end of the early warning supporting rod; the outer end face of the early warning supporting rod is provided with a limiting adjusting groove on the outer side of the supporting partition plate. When the pressure alarm is actually used, the height of the adjusting sliding block can be conveniently adjusted and fixed under the corresponding arrangement state of the adjusting sliding block, the locking knob, the first adaptive sliding groove and the vertical limiting sliding block, so that the working sensitivity of the pressure alarm is improved, and the working efficiency is improved. And meanwhile, in the corresponding arrangement state of a detection sliding block, a vertical limiting sliding block and a second adaptive sliding groove, when the collapse risk of the top of the tunnel occurs, the top of the tunnel can move downwards, so that a top adaptive rod is pressed, and the top adaptive rod slides downwards.

Description

Technical Field

[0001] The utility model relates to the technical field of track safety construction, and in particular to an automatic early warning device for collapse risk during construction of a foundation pit of a rail transit station. Background Art

[0002] During the construction of subway station foundation pits, safety issues are very important. During the work of deep foundation pits, safety detection and early warning are indispensable and important links, and are also important guarantees for construction safety. For example, the prior art publication number (CN211816490U) describes an automatic early warning device for collapse risk in the construction of rail transit station foundation pits, which includes a bottom plate and is characterized in that a plurality of fixed screws are arranged on the bottom plate; a lower sleeve is fixedly connected to the upper end of the bottom plate, a groove is provided in the lower sleeve, a driving mechanism is arranged in the groove, a central connecting block is arranged at the output end of the driving mechanism, a connecting rod is fixedly connected to the upper end of the central connecting block, and the upper end of the connecting rod is connected to an upper sleeve through an elastic member, a plurality of support rods are fixedly connected to the top end of the upper sleeve, and a top plate is fixedly connected to the top end of the support rod.

[0003] When the above device is in use, the top plate has a large contact area. When the top plate overcomes the elastic force of the spring and drops to a preset threshold, the travel switches on the upper and lower sleeves touch. At this time, the sound and light alarm can intuitively remind the construction personnel. However, when the side of the tunnel top collapses and sinks, the upper and lower sleeves cannot slide downward accurately, thereby affecting the sensitivity of the warning device. Utility Model Content

[0004] To this end, the utility model provides an automatic early warning device for collapse risk in foundation pit construction of a rail transit station. The technical problem to be solved by the utility model is: how to increase the sensitivity and accuracy of the early warning of sliding of the top adapter rod.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic early warning device for collapse risk in foundation pit construction of a rail transit station, comprising an early warning support rod, a mounting support plate is provided at the lower end thereof, a vertical limit slider is provided on the outer end face of the early warning support rod, a support partition is provided in the middle of the inner end of the early warning support rod, a limit adjustment groove is provided on the outer side of the support partition on the outer side of the early warning support rod, a support adjustment member is provided on the outer side of the inner end face of the early warning support rod, and an adjustment slider is provided on the outside of the vertical limit slider;

[0006] A locking knob is provided on the lower side of the outer end surface of the adjusting slider, a support block is provided in the middle of the outer end surface of the adjusting slider, a pressure alarm is provided on the upper end of the support block, a first adapter groove is provided on the inner end surface of the adjusting slider, and a detection slider is provided on the upper side of the adjusting slider on the outer end surface of the vertical limit slider.

[0007] In a preferred embodiment, a mounting hole is provided on the end surface of the mounting support plate, an electric telescopic rod is provided on the inner end of the warning support rod at the lower side of the supporting partition, and a locking bolt is provided in the middle of the support adjustment member;

[0008] A support spring is provided on the inner end surface of the warning support rod on the upper side of the support adjustment member, a first warning adjustment rod is provided on the upper end of the support spring, and a top adapter rod is provided outside the upper end of the first warning adjustment rod.

[0009] In a preferred embodiment, the inner end surface of the detection slider is provided with a second adapter slide groove, the outer portion of the upper end of the second adapter slide groove is provided with a second early warning adjustment rod, and the upper end of the first early warning adjustment rod and both ends of the second early warning adjustment rod are provided with a rotating connection piece;

[0010] There are multiple mounting holes, and they are arranged in an array state on both sides of the vertical central axis of the mounting support plate in the top-view direction. The electric telescopic rod is electrically connected to the external control device. The outer end surface of the first early warning adjustment rod is matched with the inner end surface of the early warning support rod, and the top adapter rod is arranged in a curved state in the main viewing direction.

[0011] In a preferred embodiment, the inner end surfaces of the first adapting slide groove and the second adapting slide groove are adapted to the outer end surface of the vertical limit slider, and the number of the second warning adjustment rods is two, and they are arranged in a mirror image state on both sides of the vertical central axis of the warning support rod in the top view direction;

[0012] The second early warning adjustment rod is connected to the first adapting sliding groove and the detection sliding block through a rotating connecting piece.

[0013] In a preferred embodiment, the number of the vertical limit sliders is two, and they are arranged in a mirror image state on both sides of the vertical central axis of the warning support rod in the main viewing direction;

[0014] The number of the limit adjustment grooves is two, and they are arranged in a mirror image state on both sides of the transverse central axis of the warning support rod in the top view direction.

[0015] In a preferred embodiment, the number of the adjusting slider and the detecting slider are both two, and they are arranged in a mirror image on both sides of the vertical center axis of the warning support rod, and the pressure alarm is electrically connected to the external control device.

[0016] The utility model has the following advantages:

[0017] When the utility model is actually used, by setting the adjusting slider, locking knob, first adapter slide groove and vertical limit slider in corresponding state, the height of the adjusting slider can be conveniently adjusted and fixed, thereby increasing the working sensitivity of the pressure alarm; at the same time, when the detection slider, vertical limit slider and second adapter slide groove are set in corresponding state, when there is a risk of collapse at the top of the tunnel, the top of the tunnel will move downward, thereby pressing the top adapter rod, causing the top adapter rod to slide downward, and driving the detection slider to slide down through the second early warning adjustment rod, so that the bottom of the detection slider is pressed on the upper end of the pressure alarm, thereby providing a timely early warning of the risk of collapse of the tunnel top, making it more sensitive and accurate for tunnel early warning. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0019] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 It is a schematic diagram of the overall main cross-sectional structure of the utility model.

[0022] Figure 3 It is a schematic diagram of the overall cross-section connection structure of the utility model.

[0023] Figure 4 For this utility model Figure 3 Schematic diagram of the enlarged structure of part A in the middle.

[0024] In the figure: 1 early warning support rod, 2 mounting support plate, 3 adjusting slider, 4 first early warning adjusting rod, 5 second early warning adjusting rod, 6 top adapter rod, 7 support partition, 8 electric telescopic rod, 9 locking knob, 10 pressure alarm, 11 rotating connector, 12 support adjustment member, 13 support spring, 14 limit adjustment groove, 15 locking bolt, 16 first adapter slide groove, 17 support block, 18 detection slider, 19 vertical limit slider, 20 second adapter slide groove. DETAILED DESCRIPTION

[0025] The following is a specific description of the implementation of the utility model. People familiar with the technology can easily understand other advantages and functions of the utility model from the content disclosed in this specification. Obviously, what is described is a part of the utility model, not all of it. Based on the utility model, all other things obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0026] The utility model provides an automatic early warning device for the risk of collapse during construction of a rail transit station foundation pit. Figure 1 and 2 As shown, it includes an early warning support rod 1, a mounting support plate 2 is provided at the lower end thereof, a supporting partition 7 is provided in the middle of the inner end of the early warning support rod 1, a limit adjustment groove 14 is provided on the outer side of the supporting partition 7 on the outer end surface of the early warning support rod 1, a support adjustment piece 12 is provided on the outer side of the inner end surface of the early warning support rod 1, a locking knob 9 is provided on the lower side of the outer end surface of the adjusting slider 3, a mounting hole is opened on the end surface of the mounting support plate 2, an electric telescopic rod 8 is provided on the lower side of the supporting partition 7 on the inner end of the early warning support rod 1, a locking bolt 15 is provided in the middle of the supporting adjustment piece 12, a supporting spring 13 is provided on the upper side of the supporting adjustment piece 12 on the inner end surface of the early warning support rod 1, a first early warning adjustment rod 4 is provided on the upper end of the first early warning adjustment rod 4, a top adapter rod 6 is provided on the outside of the upper end of the first early warning adjustment rod 4, and the first The upper end of the early warning adjustment rod 4 and the two ends of the second early warning adjustment rod 5 are provided with a rotating connecting piece 11. The number of the mounting holes is provided in plurality, and they are arranged in an array state on both sides of the vertical central axis of the mounting support plate 2 in the top-view direction. The electric telescopic rod 8 is electrically connected to the external control device. The outer end face of the first early warning adjustment rod 4 is adapted to the inner end face of the early warning support rod 1. The top adaptation rod 6 is arranged in a curved state in the main viewing direction. The number of the second early warning adjustment rod 5 is provided in two, and they are arranged in a mirror state on both sides of the vertical central axis of the early warning support rod 1 in the top-view direction. The number of the limit adjustment grooves 14 is provided in two, and they are arranged in a mirror state on both sides of the horizontal central axis of the early warning support rod 1 in the top-view direction. The pressure alarm 10 is electrically connected to the external control device.

[0027] like Figure 3 and4 As shown, the outer end surface of the warning support rod 1 is provided with a vertical limit slider 19, the outer side of the vertical limit slider 19 is provided with an adjusting slider 3, the middle part of the outer end surface of the adjusting slider 3 is provided with a support block 17, the upper end of the support block 17 is provided with a pressure alarm 10, the inner end surface of the adjusting slider 3 is provided with a first adapter groove 16, the outer end surface of the vertical limit slider 19 is provided with a detection slider 18 on the upper side of the adjusting slider 3, the inner end surface of the detection slider 18 is provided with a second adapter groove 20, and the outer side of the upper end of the second adapter groove 20 is provided with a second The early warning adjustment rod 5, the inner end faces of the first adaptation slide groove 16 and the second adaptation slide groove 20 are adapted to the outer end face of the vertical limit slider 19, the second early warning adjustment rod 5 is connected to the first adaptation slide groove 16 and the detection slider 18 through the set rotating connection 11, the number of the vertical limit slider 19 is provided with two, and they are arranged in a mirror state on both sides of the vertical center axis of the main viewing direction of the early warning support rod 1, the number of the adjustment slider 3 and the detection slider 18 are provided with two, and they are arranged in a mirror state on both sides of the vertical center axis of the early warning support rod 1.

[0028] Working principle of this utility model:

[0029] When the utility model is used, the staff installs the mounting support plate 2 in the middle of the tunnel and fixes it stably with bolts. Then the staff can adjust the position of the support adjustment member 12 according to the height of the tunnel and lock it with the locking bolt 15. Then the staff inserts the first early warning adjustment rod 4 into the early warning support rod 1. Then the second early warning adjustment rod 5 can be connected with the top adapter rod 6 and the detection slider 18. At the same time, the staff controls the detection slider 8 to work through an external control device, which will support the early warning support rod 1 to rise, so that the early warning support rod 6 fits the top of the tunnel. At the same time, after it is fixed, the staff adjusts the adjustment slider 3 to a suitable position, and then fixes it stably with the locking knob 9.

[0030] Although the utility model has been described in detail above with general explanations and specifics, it is obvious to those skilled in the art that some modifications or improvements can be made to the utility model. Therefore, these modifications or improvements made without departing from the spirit of the utility model are within the scope of protection claimed by the utility model.

Claims

1. An automatic early warning device for collapse risk during construction of a rail transit station foundation pit, characterized in that: include: An early warning support rod (1) is provided with a mounting support plate (2) at its lower end, a vertical limit slider (19) is provided on the outer end surface of the early warning support rod (1), a support partition (7) is provided in the middle of the inner end of the early warning support rod (1), a limit adjustment groove (14) is provided on the outer side of the support partition (7) on the outer end surface of the early warning support rod (1), a support adjustment member (12) is provided on the outer side of the inner end surface of the early warning support rod (1), and an adjustment slider (3) is provided on the outside of the vertical limit slider (19); A locking knob (9) is provided on the lower side of the outer end surface of the adjusting slider (3), a support block (17) is provided in the middle of the outer end surface of the adjusting slider (3), a pressure alarm (10) is provided on the upper end of the support block (17), a first adapting groove (16) is provided on the inner end surface of the adjusting slider (3), and a detection slider (18) is provided on the upper side of the adjusting slider (3) on the outer end surface of the vertical limit slider (19).

2. According to claim 1, an automatic early warning device for collapse risk during construction of a rail transit station foundation pit, characterized in that: The end surface of the mounting support plate (2) is provided with a mounting hole, the inner end of the warning support rod (1) is provided with an electric telescopic rod (8) on the lower side of the supporting partition (7), and the middle part of the supporting adjustment member (12) is provided with a locking bolt (15); The inner end surface of the early warning support rod (1) is provided with a support spring (13) on the upper side of the support adjustment member (12); the upper end of the support spring (13) is provided with a first early warning adjustment rod (4); and the outer portion of the upper end of the first early warning adjustment rod (4) is provided with a top adapter rod (6).

3. The automatic early warning device for collapse risk during construction of a rail transit station foundation pit according to claim 2 is characterized by: The inner end surface of the detection slide block (18) is provided with a second adapting slide groove (20), the outer portion of the upper end of the second adapting slide groove (20) is provided with a second early warning adjustment rod (5), and the upper end of the first early warning adjustment rod (4) and both ends of the second early warning adjustment rod (5) are provided with a rotating connection piece (11); The number of the mounting holes is multiple, and they are arranged in an array state on both sides of the vertical central axis of the mounting support plate (2) in the top-view direction. The electric telescopic rod (8) is electrically connected to the external control device. The outer end surface of the first warning adjustment rod (4) is adapted to the inner end surface of the warning support rod (1). The top adaptor rod (6) is arranged in a curved state in the main viewing direction.

4. The automatic early warning device for collapse risk during construction of a rail transit station foundation pit according to claim 3 is characterized by: The inner end surfaces of the first adapting slide groove (16) and the second adapting slide groove (20) are adapted to the outer end surface of the vertical limit slider (19); the number of the second warning adjustment rods (5) is two, and they are arranged in a mirror image state on both sides of the vertical central axis of the warning support rod (1) in the top view direction; The second early warning adjustment rod (5) is connected to the first adapting sliding groove (16) and the detection sliding block (18) via a rotating connecting piece (11).

5. The automatic early warning device for collapse risk during construction of a rail transit station foundation pit according to claim 1, characterized in that: The number of the vertical limit sliding blocks (19) is two, and they are arranged in a mirror image state on both sides of the vertical central axis of the warning support rod (1) in the main viewing direction; The number of the limit adjustment grooves (14) is two, and they are arranged in a mirror image state on both sides of the transverse central axis of the warning support rod (1) in the top-view direction.

6. The automatic early warning device for collapse risk during construction of a rail transit station foundation pit according to claim 1, characterized in that: The number of the adjusting slider (3) and the detecting slider (18) is two, and they are arranged in a mirror image on both sides of the vertical center axis of the warning support rod (1), and the pressure alarm (10) is electrically connected to the external control device.

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