Top channel emergency water retaining device for subway foundation pit construction

Abstract

The utility model discloses a top channel emergency water retaining device for subway foundation pit construction, which comprises two mutually symmetrical first water retaining walls, the middle of each first water retaining wall is provided with an accommodating notch, each accommodating notch is provided with a slot, and a water retaining device is inserted into each slot; the water retaining device comprises a water retaining plate, a plurality of elastic connecting devices are arranged below the water retaining plate and located in the inserting groove, fixing devices are arranged at the joints of the two sides of the top of the water retaining plate and the first water retaining wall, and the water retaining device is fixed by the fixing devices after being pressed downwards through the elastic connecting devices so as to achieve the water retaining purpose. And when the water baffle is not inserted into the slot, the elastic connecting device is in an upward bouncing state and just fills the slot, so that the problem that the water baffle cannot be inserted during rainfall due to the fact that the slot is blocked by dust or other sundries generated during construction when the accommodating notch is released can be prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of subway construction, and in particular relates to a top channel emergency water retaining device for subway foundation pit construction. Background Art

[0002] In order to ensure the safety of the subway station foundation pit during the construction process and avoid extreme weather such as heavy rainfall causing rainwater to flow back into the foundation pit and bring construction risks, retaining walls are installed around the subway station foundation pit. At the same time, during the excavation of the foundation pit, in order to facilitate the construction and meet the needs of precipitation water level measurement and support monitoring, it is necessary to arrange a passage across the foundation pit in combination with the position of the supporting beam. At the connection position between the two ends of the supporting beam and the retaining wall, in order to ensure the connectivity of the passage and the comfort of the passage, the height of the retaining wall needs to be lowered. However, in this case, if there is heavy rainfall and other weather, there will be a risk of rainwater flowing into the foundation pit from the connection between the passage and the retaining wall. Utility Model Content

[0003] The purpose of the utility model is to provide an emergency water retaining device for the top channel of subway foundation pit construction in order to solve the problem that the connection between the top channel of the traditional subway foundation pit and the retaining wall is at a low height, and rainwater backflow may occur in extreme weather such as heavy rainfall.

[0004] The utility model achieves the above-mentioned purpose through the following technical scheme: comprising two mutually symmetrical first water retaining walls, each of which has an accommodation gap in the middle, each of which has a slot, each of which has a water retaining device inserted in it;

[0005] The water retaining device includes a water retaining plate, and a plurality of elastic connecting devices are arranged below the water retaining plate and in the slot. Fixing devices are arranged at the connection between the top two sides of the water retaining plate and the first water retaining wall. The water retaining device is fixed by the fixing device after being pressed down by the elastic connecting device, thereby achieving the purpose of water retaining.

[0006] Furthermore, a placement groove is provided on the surface of the first water retaining wall and at a position on one side of the accommodating gap, and a hook for hanging the water retaining plate is provided in the placement groove.

[0007] Furthermore, a top channel is connected in the middle of the first water retaining wall, two ends of the top channel are connected to the position below the accommodating gap, and second water retaining walls are connected between both sides of the first water retaining wall.

[0008] Furthermore, the elastic connection device includes a pressure plate, a support shaft is provided below the pressure plate, a support sleeve is provided below the support shaft, and a buffer spring is sleeved on the outer diameter surfaces of the support shaft and the support sleeve.

[0009] Furthermore, the fixing device includes a fixing block, which is fixed at positions on both sides above the accommodating notch, and a baffle is slidably connected inside the fixing block.

[0010] Beneficial effects: 1. When the water retaining plate is not inserted in the slot, the elastic connection device is in an upwardly springing state, just filling the slot, thereby preventing the dust or other debris generated during construction from blocking the slot when the accommodation gap is released, resulting in the water retaining plate being unable to be inserted during rain;

[0011] 2. When the amount of rainfall is too large and a water baffle is needed to block the water, just insert the water baffle downward along the slot, and the elastic device is in a downward pressure state. When the top surface of the water baffle is pressed down to a position flush with the first water retaining wall, push the baffle inward to block it above the water baffle for limiting the position, and the position of the water baffle can be fixed to play a water retaining role;

[0012] 3. When the water retaining plate is not in use, if it is directly hung on the outer wall of the water retaining wall, it is easy for construction workers to bump into it when walking back and forth. The opening of the receiving groove is just right for placing the water retaining plate without occupying external space. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the water retaining device of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the elastic connection device of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the fixing device of the utility model.

[0017] In the figure: 1-first water retaining wall, 2-accommodating gap, 3-slot, 4-water retaining device, 5-placing groove, 6-hook, 7-top channel, 8-second water retaining wall;

[0018] 41-water retaining plate, 42-elastic connecting device, 43-fixing device;

[0019] 421-pressing plate, 422-supporting shaft, 423-supporting sleeve, 424-buffer spring;

[0020] 431-fixed block, 432-baffle. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Combination Figure 1 , Figure 2 The top channel emergency water retaining device for subway foundation pit construction shown in the figure comprises two mutually symmetrical first water retaining walls 1, each of which is provided with a receiving gap 2 in the middle, and the first water retaining wall 1 is 60 cm high except for the position of the receiving gap 2, and the receiving gap 2 is mainly used to facilitate the passage of pedestrians and construction equipment, and each of which is provided with a slot 3, and each of which is provided with a water retaining device 4, and the water retaining device 4 will not block the space at the receiving gap 2 during normal construction;

[0023] The water retaining device 4 includes a water retaining plate 41, the water retaining plate adopts a 1cm square tube to make a skeleton, which is then closed with iron sheets. The entire retaining plate is 1.2m wide and 0.3m high. Two handles are welded on the top of the retaining plate to facilitate the installation and removal of the retaining plate. A plurality of elastic connecting devices 42 are provided below the water retaining plate 41 and located in the slot 3. When the water retaining plate 41 is not inserted in the slot 3, the elastic connecting device 42 is in an upwardly popped-up state, just filling the space of the slot 3 to prevent dust and other impurities from blocking the slot 3 and affecting the next insertion of the water retaining plate 41. Fixing devices 43 are provided at the connection between the top and the first water retaining wall 1 on both sides of the water retaining plate 41. The water retaining device 4 is fixed by the fixing device 43 after being pressed down by the elastic connecting device 42, thereby achieving the purpose of water retaining;

[0024] A placement groove 5 is provided on the wall surface of the first water retaining wall 1 and at a position on one side of the accommodating notch 2. The depth of the placement groove 5 is greater than the thickness of the water retaining plate 41. The length and width of the placement groove 5 are also greater than the length and width of the water retaining plate 41 plus the handle, so as to ensure that the water retaining plate 41 can be smoothly placed in the placement groove 5 when not in use. A hook 6 for hanging the water retaining plate 41 is provided in the placement groove 5.

[0025] A top channel 7 is connected in the middle of the first water retaining wall 1, and both ends of the top channel 7 are connected to the position below the accommodating gap 2. The top channel 7 is designed for the convenience of construction and to meet the needs of precipitation water level measurement, support monitoring, etc. At the same time, in order to ensure the connectivity of the channel and the comfort of the channel, the port position of the top channel is set below the accommodating gap 2. The second water retaining wall 8 is connected between the two sides of the first water retaining wall 1, and the four water retaining walls cooperate with each other to form a closed water retaining space.

[0026] Combination Figure 3 As shown, the elastic connecting device 42 includes a pressure plate 421, which directly supports the water retaining plate 41 above it, and its width is the same as the thickness of the water retaining plate 41. A support shaft 422 is provided below the pressure plate 421, and a support sleeve 423 is provided below the support shaft 422. The support shaft 422 and the support sleeve 423 cooperate with each other to support and limit the water retaining plate 41. A buffer spring 424 is provided on the outer diameter surface of the support shaft 422 and the support sleeve 423. The spring 424 ensures that when the water retaining plate 41 is taken out, the pressure plate is bounced up and is just flush with the top of the first water retaining wall 1.

[0027] Combination Figure 4 As shown, the fixing device 43 includes a fixing block 431, which is fixed at the positions on both sides above the accommodating notch 2, and a baffle 432 is slidably connected inside the fixing block 431. When the amount of rainfall is too large and the water baffle 41 is needed to block the water, the water baffle 41 is inserted downward along the slot 3, and the elastic device 42 is slowly in a downwardly pressed state. When the top surface of the water baffle 41 is pressed down to a position flush with the first water retaining wall 1, the baffle 432 is pushed inward to block the water baffle 41 above the water baffle 41 for limiting the position, so that the position of the water baffle 41 can be fixed to play a water-blocking role. When taking out the water baffle 41, it is also pressed down first, and then the baffle 432 is pushed outward. The water baffle 41 can automatically pop out after being unobstructed.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An emergency water retaining device for a top channel used in subway foundation pit construction, characterized in that: It comprises two mutually symmetrical first water retaining walls (1), each of the first water retaining walls (1) being provided with a receiving notch (2) in the middle, each of the receiving notches (2) being provided with a slot (3), each of the slots (3) being provided with a water retaining device (4); The water retaining device (4) comprises a water retaining plate (41). A plurality of elastic connecting devices (42) are provided below the water retaining plate (41) and in the slot (3). Fixing devices (43) are provided at the connection points between the top two sides of the water retaining plate (41) and the first water retaining wall (1). The water retaining device (4) is fixed by the fixing devices (43) after being pressed down by the elastic connecting devices (42) to achieve the purpose of water retaining.

2. The top channel emergency water retaining device for subway foundation pit construction according to claim 1 is characterized by: A placement groove (5) is provided on the wall surface of the first water retaining wall (1) and at a position located on one side of the accommodating notch (2), and a hook (6) for hanging the water retaining plate (41) is provided in the placement groove (5).

3. The top channel emergency water retaining device for subway foundation pit construction according to claim 1 is characterized by: A top channel (7) is connected in the middle of the first water retaining wall (1), both ends of the top channel (7) are connected to the position below the accommodating gap (2), and second water retaining walls (8) are connected between both sides of the first water retaining wall (1).

4. The top channel emergency water retaining device for subway foundation pit construction according to claim 1 is characterized by: The elastic connection device (42) comprises a pressing plate (421), a support shaft (422) is provided below the pressing plate (421), a support sleeve (423) is provided below the support shaft (422), and a buffer spring (424) is sleeved on the outer diameter surfaces of the support shaft (422) and the support sleeve (423).

5. The top channel emergency water retaining device for subway foundation pit construction according to claim 1 is characterized by: The fixing device (43) comprises a fixing block (431), the fixing block (431) being fixed at positions on both sides above the accommodating notch (2), and a baffle (432) being slidably connected inside the fixing block (431).

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