Guard plate structure of cofferdam foundation pit water collecting tank

Abstract

The utility model belongs to the technical field of foundation pit drainage, and particularly relates to a guard plate structure of a cofferdam foundation pit water collecting tank, which comprises a water collecting tank arranged at the top of the side wall of a foundation pit and arranged around the foundation pit. The protective plate is arranged on the inner wall of the water collecting tank and comprises a first protective plate body which is poured on the side, close to the foundation pit, of the water collecting tank; the auxiliary structures are arranged on the first protection plate body, and each auxiliary structure comprises an auxiliary plate hinged to the top of the first protection plate body through a hinge and a connecting rod arranged at the top of the first protection plate body. The angle steel and the connecting rod are arranged on the auxiliary plate, the angle steel can support and limit the overturned auxiliary plate, and the hinge is prevented from being damaged; in addition, the connecting rod can generate a pulling force effect on the overturned auxiliary plate, so that the auxiliary plate is prevented from overturning towards the initial position. And the angle steel and the connecting rod are matched with each other, so that the overturned auxiliary plate can be firmly limited.

Description

Technical Field

[0001] The utility model belongs to the technical field of foundation pit drainage, and particularly relates to a guard plate structure for a water collecting tank of a cofferdam foundation pit. Background Technique

[0002] At present, when excavating a cofferdam foundation pit, a water collecting tank needs to be arranged at the top of the side wall of the foundation pit. In this way, surface water will enter the water collecting tank before flowing into the foundation pit and be discharged through the water collecting tank. However, when the water collecting tank encounters drainage pressure, the water will overflow into the foundation pit, affecting the construction.

[0003] To solve this problem, the patent of CN217352551U discloses a guard plate structure for a water collecting tank at the top of the side wall of a foundation pit, which includes a tank body. The tank body is arranged at the top of the side wall of the foundation pit and surrounds the foundation pit; a guard plate, the guard plate is arranged inside the tank body, and the guard plate includes a bottom plate, a first plate body and a second plate body. The bottom plate is arranged at the bottom of the tank body, the first plate body is arranged at one end of the tank body away from the foundation pit, the second plate body is arranged at one end of the tank body close to the foundation pit, the second plate body includes a fixed plate and a movable plate, the fixed plate is fixed in the tank body, the movable plate is movably connected in the fixed plate, and the movable plate can extend upward out of the tank body. In rainy or typhoon weather, the movable plate can rise upward to prevent the water in the drainage tank from overflowing towards the foundation pit direction, which has a good drainage assistance effect, reduces the drainage pressure of the foundation pit, and also ensures the structural strength of the side wall of the foundation pit and the working area at the top.

[0004] It is undeniable that the guard plate structure for the water collecting tank at the top of the side wall of the foundation pit disclosed in this patent can indeed achieve the above effects, but it still has certain deficiencies: when adopting the scheme of using a hinge to realize the rotation of the movable plate, the water overflowing from the water collecting tank will generate a large force on the hinge, making the hinge prone to damage.

[0005] The information disclosed in this background technical part is only intended to increase the understanding of the overall background of the utility model, and should not be regarded as an admission or any form of suggestion that this information constitutes the prior art already known to those of ordinary skill in the art. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a guard plate structure for a water collecting tank of a cofferdam foundation pit to solve the problems existing in the guard plate structure for the water collecting tank at the top of the side wall of the foundation pit in the background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solutions:

[0008] A guard plate structure for a water collecting tank of a cofferdam foundation pit, comprising:

[0009] A water collecting trough disposed on the top of the side wall of the foundation pit and arranged around the foundation pit;

[0010] A guard plate disposed on the inner wall of the water collecting trough, the guard plate comprising a first guard plate body cast on a side of the water collecting trough close to the foundation pit;

[0011] A plurality of auxiliary structures are arranged on the first guard plate body, and the auxiliary structures include an auxiliary plate hinged to the top of the first guard plate body by a hinge and a connecting rod arranged on the top of the first guard plate body; wherein angle steels are symmetrically fixed to the top of the outer side of the auxiliary plate, and the hinge is fixed to the horizontal section of the angle steel on one side close to the auxiliary plate; a lifting ear is fixed to the outer side of the auxiliary plate near the bottom, and a hook corresponding to the lifting ear is provided at the end of the connecting rod away from the first guard plate body.

[0012] Preferably, the guard plate also includes a second guard plate body cast on the side of the water collecting trough away from the foundation pit and a third guard plate body cast on the bottom of the water collecting trough.

[0013] Preferably, the cross-section of the water collecting trough and the guard plate is trapezoidal, which is wide at the top and narrow at the bottom.

[0014] Preferably, a U-shaped fixture is pre-buried at the top of the first guard plate body; a connecting ring is integrally formed at the bottom of the connecting rod, and the connecting ring is movably connected to the first guard plate body via the U-shaped fixture.

[0015] Preferably, a bolt corresponding to the hinge is pre-embedded in the top of the first guard plate body, and a side of the hinge close to the first guard plate body is fixed to the top of the first guard plate body by the bolt.

[0016] Preferably, a lap plate is fixed on the outer wall of one end of the auxiliary plate.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The auxiliary plate of the utility model is provided with angle steel and connecting rod. When the auxiliary plate is flipped to a certain angle along the opening and closing direction of the hinge, the angle steel prevents the auxiliary plate from continuing to flip, so that the angle steel can support and limit the auxiliary plate after flipping, thereby avoiding damage to the hinge. In addition, the connecting rod can exert a pulling force on the auxiliary plate after flipping, thereby fixing the position of the auxiliary plate after flipping, thereby preventing it from flipping to the initial position. The angle steel and the connecting rod cooperate with each other to form a firm limit for the auxiliary plate after flipping. Secondly, two adjacent auxiliary plates can be overlapped together with the help of the lap plate to ensure sealing, thereby preventing surface water overflowing the sump from flowing into the foundation pit. It has a good drainage auxiliary effect, can reduce the drainage pressure of the foundation pit, and ensure the strength of the earth-rock cofferdam foundation pit structure. The entire guard plate structure is simple, easy to implement, and easy to use. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 It is a state diagram when the auxiliary structure of the present utility model is opened;

[0021] Figure 3 It is a state diagram when the auxiliary structure of the present utility model is half-opened;

[0022] Figure 4 It is a state diagram when the auxiliary structure of the present utility model is closed;

[0023] Figure 5 It is a schematic diagram of the structure of the auxiliary plate of the present utility model;

[0024] Figure 6 It is a schematic diagram of the structure of the U-shaped fixture of the present utility model;

[0025] Figure 7 It is a schematic diagram of the structure of the hinge of the present utility model.

[0026] Main reference numeral description:

[0027] 1, Foundation pit;

[0028] 2, Catch basin;

[0029] 3, Protection plate; 31, First protection plate body; 311, U-shaped fixture; 312, Bolt; 32, Second protection plate body; 33, Third protection plate body;

[0030] 4, Auxiliary structure; 41, Hinge; 42, Auxiliary plate; 421, Angle steel; 422, Lifting lug; 423, Lapping plate; 43, Connecting rod; 431, Hook; 432, Link ring. Detailed implementation manners

[0031] Next, the technical solutions of the patent of the present utility model will be described clearly and completely. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0032] Embodiment

[0033] Refer to the attached Figures 1-7 , A protection plate structure for a catch basin of a cofferdam foundation pit, comprising:

[0034] A catch basin 2 arranged at the top of the side wall of the foundation pit 1 and surrounding the foundation pit 1;

[0035] A guard plate 3 is arranged on the inner wall of the water collecting trough 2, and the guard plate 3 includes a first guard plate body 31 cast on the side of the water collecting trough 2 close to the foundation pit 1, a second guard plate body 32 cast on the side of the water collecting trough 2 away from the foundation pit 1, and a third guard plate body 33 cast at the bottom of the water collecting trough 2; it should be noted that the provision of the guard plate 3 can effectively prevent surface water from infiltrating into the soil layer of the drainage trough 2 to form a water flow channel.

[0036] A plurality of auxiliary structures 4 are arranged on the first guard plate body 31, and the auxiliary structures 4 include an auxiliary plate 42 hinged to the top of the first guard plate body 31 by a hinge 41 and a connecting rod 43 arranged on the top of the first guard plate body 31; wherein angle steels 421 are symmetrically fixed on the top of the outer side of the auxiliary plate 42, and the hinge 41 is fixed to the horizontal section of the angle steel 421 on one side close to the auxiliary plate 42; a lifting ear 422 is fixed at a position close to the bottom of the outer side of the auxiliary plate 42, and a hook 431 corresponding to the lifting ear 422 is provided on the end of the connecting rod 43 away from the first guard plate body 31.

[0037] In this embodiment, the cross-section of the water collecting trough 2 and the guard plate 3 is trapezoidal in shape, which is wide at the top and narrow at the bottom. This makes it easy to collect surface water on both sides of the water collecting trough 2 into the water collecting trough 2.

[0038] In addition, in the present embodiment, a U-shaped clamp 311 is pre-embedded in the top of the first guard plate body 31; a connecting ring 432 is integrally formed at the bottom of the connecting rod 43, and the connecting ring 432 is movably connected to the first guard plate body 31 through the U-shaped clamp 311; a bolt 312 corresponding to the hinge 41 is pre-embedded in the top of the first guard plate body 31, and the hinge 41 is fixed to the top of the first guard plate body 31 by the bolt 312 on the side close to the first guard plate body 31.

[0039] Finally, in this embodiment, a lap plate 423 is fixed on the outer wall of one end of the auxiliary plate 42 .

[0040] The auxiliary plate 42 is initially located inside the guard plate 3 and fits on the first guard plate body 31. When encountering heavy rainfall such as heavy rain, the auxiliary plate 42 is flipped. The auxiliary plate 42 flips towards the foundation pit 1 along the opening and closing direction of the hinge 41. After the auxiliary plate 42 flips by a certain angle (170°-175°), the angle steel 421 abuts against that part of the hinge 41 fixed to the side of the first guard plate body 31, thereby preventing the auxiliary plate 42 from continuing to flip. In this way, the angle steel 421 can play a role in supporting and limiting the flipped auxiliary plate 42, avoiding damage to the hinge 41. Then, the hook 431 of the connecting rod 43 is hooked on the lifting lug 422. In this way, the connecting rod 43 can exert a pulling force on the flipped auxiliary plate 42 and play a role in fixing the position of the flipped auxiliary plate 42 to prevent it from flipping back to the initial position. In addition, a lapping plate 423 is fixed on the outer wall of one end of the auxiliary plate 42. With the help of the lapping plate 423, two adjacent auxiliary plates 42 can be lapped together to ensure the sealing performance, thereby preventing the surface water overflowing from the catchment tank 2 from flowing into the foundation pit 1. It has a good drainage assistance effect, can reduce the drainage pressure of the foundation pit 1, and ensures the strength of the earth-rock cofferdam foundation pit 1 structure.

[0041] The foregoing description of the specific exemplary embodiments of the present invention is for the purposes of illustration and exemplification. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations are possible in light of the above teaching. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical applications, so that those skilled in the art can implement and utilize the various different exemplary embodiments of the present invention, as well as various different selections and changes. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A protective plate structure for a water collecting tank in a cofferdam foundation pit, characterized in that, include: A water collecting trough disposed on the top of the side wall of the foundation pit and arranged around the foundation pit; A guard plate disposed on the inner wall of the water collecting trough, the guard plate comprising a first guard plate body cast on a side of the water collecting trough close to the foundation pit; A plurality of auxiliary structures are arranged on the first guard plate body, and the auxiliary structures include an auxiliary plate hinged to the top of the first guard plate body by a hinge and a connecting rod arranged on the top of the first guard plate body; wherein angle steels are symmetrically fixed to the top of the outer side of the auxiliary plate, and the hinge is fixed to the horizontal section of the angle steel on one side close to the auxiliary plate; a lifting ear is fixed to the outer side of the auxiliary plate near the bottom, and a hook corresponding to the lifting ear is provided at the end of the connecting rod away from the first guard plate body.

2. The guard plate structure of the cofferdam foundation pit catch basin according to claim 1, wherein, The guard plate also includes a second guard plate body cast on the side of the water collecting trough away from the foundation pit and a third guard plate body cast on the bottom of the water collecting trough.

3. The guard plate structure of the cofferdam foundation pit catch basin according to claim 2, characterized in that The cross section of the water collecting trough and the guard plate is a trapezoid that is wide at the top and narrow at the bottom.

4. The guard plate structure of the cofferdam foundation pit catch basin according to claim 1, characterized in that, A U-shaped fixture is pre-buried at the top of the first guard plate body; a connecting ring is integrally formed at the bottom of the connecting rod, and the connecting ring is movably connected to the first guard plate body through the U-shaped fixture.

5. The guard plate structure of the cofferdam foundation pit catch basin according to claim 1, characterized in that A bolt corresponding to the hinge is pre-embedded in the top of the first guard plate body, and a side of the hinge close to the first guard plate body is fixed to the top of the first guard plate body by the bolt.

6. The guard plate structure of the cofferdam foundation pit catch basin according to claim 1, characterized in that, A lap plate is fixed on the outer wall of one end of the auxiliary plate.

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