Steel sleeve for dewatering well and open drainage sump

Abstract

The utility model relates to a steel sleeve for a dewatering well and an open drainage sump. The steel sleeve for the dewatering well and the open drainage sump comprises a sleeve body, a rubber water stop strip, a sealing plate and a water stop joint and further comprises a plurality of fastening structures, the sleeve body is arranged on the dewatering well, the fastening structures are arranged on the lower portion of the sleeve body, the fastening structures are arranged on the periphery of the sleeve body in a surrounding mode, each fastening structure comprises a right-angle threaded clamping pin, a fastening hole and a fastener, the right-angle threaded clamping pin is in an L shape, and the fastening hole is formed in the right-angle threaded clamping pin. The fastening hole is formed in the sleeve, the threaded section of the right-angle threaded clamping pin penetrates through the fastening hole, the reinforcing fastener enables the vertical section of the right-angle threaded clamping pin to abut against the inner wall of the dewatering well, and the situation that when foundation concrete is poured, the foundation concrete enters the dewatering well by mistake, and blocking of the dewatering well is caused is prevented. Rainfall can be rapidly assisted, raft pouring is not affected, concrete can be prevented from blocking a precipitation well in the construction process, construction is rapid, and cost is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction auxiliary tools, and in particular relates to a steel casing for a precipitation well and an open drainage sump. Background Art

[0002] During the foundation construction phase, precipitation wells are often used for precipitation. When pouring the raft, the precipitation wells cannot be closed. Local deep excavation sites, such as elevator shafts, fire collection pits, etc., especially those with strong water permeability such as sand layers and silt layers, often require special open drainage collection pits. When pouring the raft, improper treatment of the wellhead or open drainage collection pit is very likely to cause water seepage in the raft. Utility Model Content

[0003] The utility model aims to provide a steel casing for a precipitation well and an open drainage sump to solve the technical problem in the prior art of preventing concrete from mistakenly entering the cylindrical hollow tube of the precipitation well when pouring foundation concrete, causing the precipitation well to be blocked, resulting in the well being abandoned and even the water level rising to cause damage to the main structure.

[0004] In order to achieve the above objectives, the technical solution adopted by the utility model is:

[0005] A steel casing for a drainage well and an open drainage sump, comprising a casing, a rubber water stop strip, a sealing plate, a water stop joint, and also comprising a plurality of fastening structures. The casing is arranged on the drainage well, and the fastening structure is arranged at the lower part of the casing. The fastening structure is arranged around the casing, and the fastening structure comprises a right-angle threaded pin, a fastening hole, and a fastener. The right-angle threaded pin is L-shaped, and the fastening hole is arranged on the casing. The threaded section of the right-angle threaded pin passes through the fastening hole. The reinforcing fastener makes the vertical section of the right-angle threaded pin press against the inner wall of the drainage well to prevent the right-angle threaded pin from mistakenly entering the drainage well when pouring foundation concrete, thereby causing the drainage well to be blocked.

[0006] Furthermore, the fastener is a nut, and the threaded section is provided with a thread that matches the nut.

[0007] Furthermore, the fastening structures are evenly distributed on the circumference of the sleeve.

[0008] Furthermore, the inner diameter of the casing is smaller than the outer diameter of the precipitation well, and the inner diameter of the casing is larger than the inner diameter of the precipitation well.

[0009] Furthermore, the length of the vertical section is greater than the length from the fastening hole to the lower part of the casing, so that the vertical section extends into the precipitation well.

[0010] Furthermore, the sealing plate is arranged inside the sleeve and is connected and fixed to the sleeve.

[0011] Furthermore, the water stop joint is arranged on the sleeve and is connected and fixed to the sleeve.

[0012] Furthermore, the rubber water stop strip is arranged at the connection between the water stop joint and the sleeve.

[0013] Beneficial effects of the utility model:

[0014] The steel casing of the drainage well and open drainage sump of the utility model can quickly assist in drainage in areas with abundant groundwater without affecting the casting of the raft slab, can prevent concrete from blocking the drainage well during construction, quickly construct, save costs, and has strong practicality and economy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the steel casing of the precipitation well and the open drainage sump in Example 1;

[0016] Figure 2 Schematic diagram of the right-angle threaded pin structure of the steel casing of the drainage well and the open drainage sump in Example 1.

[0017] In the figure: 1. casing; 2. rubber water stop strip; 3. sealing plate; 4. water stop joint; 5. right-angle threaded pin; 6. fastening hole; 7. fastener; 8. threaded section; 9. vertical section. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0019] The implementation of the steel casing of the drainage well and the open drainage sump in the utility model is as follows: Figure 1-2 shown.

[0020] Example 1

[0021] The steel casing of the drainage well and the open drainage sump of this embodiment includes a casing 1, a rubber water stop strip 2, a sealing plate 3, a water stop joint 4, and also includes 4 fastening structures. The 4 fastening structures are evenly distributed on the casing 1. The casing 1 is arranged on the drainage well, and the fastening structure is arranged at the lower part of the casing 1. The fastening structure is arranged around the casing 1. The fastening structure includes a right-angle threaded pin 5, a fastening hole 6 and a fastener 7. The fastener 7 is a nut. The right-angle threaded pin 5 is L-shaped. The fastening hole 6 is arranged on the casing 1. The threaded section 8 of the right-angle threaded pin 5 passes through the fastening hole 6. The threaded section 8 is provided with a thread that cooperates with the nut. The length of the vertical section 9 is greater than the length from the fastening hole 6 to the lower part of the casing 1, so that the vertical section 9 extends into the drainage well. The fastener 7 is tightened to make the vertical section 9 of the right-angle threaded pin 5 press against the inner wall of the drainage well to prevent it from mistakenly entering the drainage well when pouring the foundation concrete, causing the drainage well to be blocked. The inner diameter of the casing 1 is smaller than the outer diameter of the drainage well, and the inner diameter of the casing 1 is larger than the inner diameter of the drainage well. The sealing plate 3 is arranged in the casing 1 and connected and fixed to the casing 1. The water stop joint 4 is arranged around the casing 1 and connected and fixed to the casing 1. The rubber water stop strip 2 is arranged at the connection between the water stop joint 4 and the casing 1.

[0022] Connection structure between the steel casing of the precipitation well and the open drainage sump and the precipitation well:

[0023] The material of the right-angle threaded pin is Q235, the threaded section 8 is 10 cm long, and the thread length of the threaded section 8 is 6 cm; the vertical section 9 is 15 cm long and is made of round steel. An 18 mm fastening hole 6 is welded 5 cm above the bottom end of the casing 1 in advance and polished flat. The threaded section 8 is passed through the fastening hole 6, and the vertical section 9 is tightly attached to the inner wall of the precipitation well by tightening the nut to prevent the foundation concrete from mistakenly entering the precipitation well when pouring the foundation concrete, causing the precipitation well to be blocked.

[0024] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0025] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A steel casing for a precipitation well and an open drainage sump, comprising a casing, a rubber water stop strip, a sealing plate, and a water stop joint, characterized in that: It also includes a plurality of fastening structures. The casing is arranged on the drainage well. The fastening structure is arranged at the lower part of the casing. The fastening structure is arranged around the casing. The fastening structure includes a right-angle threaded pin, a fastening hole and a fastener. The right-angle threaded pin is L-shaped. The fastening hole is arranged on the casing. The threaded section of the right-angle threaded pin passes through the fastening hole. The reinforcing fastener makes the vertical section of the right-angle threaded pin press against the inner wall of the drainage well to prevent the right-angle threaded pin from mistakenly entering the drainage well when pouring foundation concrete, thereby causing the drainage well to be blocked.

2. The steel casing for the drainage well and open drainage sump according to claim 1 is characterized by: The fastener is a nut, and the threaded section is provided with threads matching the nut.

3. The steel casing for the drainage well and open drainage sump according to claim 1 is characterized by: The fastening structures are evenly distributed on the sleeve around its circumference.

4. The steel casing for the drainage well and open drainage sump according to claim 1 is characterized by: The inner diameter of the casing is smaller than the outer diameter of the precipitation well, and the inner diameter of the casing is larger than the inner diameter of the precipitation well.

5. The steel casing for the drainage well and open drainage sump according to claim 1 is characterized by: The length of the vertical section is greater than the length from the fastening hole to the lower part of the casing, so that the vertical section extends into the dewatering well.

6. The steel casing for the drainage well and open drainage sump according to claim 1 is characterized by: The sealing plate is arranged in the sleeve and is connected and fixed to the sleeve.

7. The steel casing for the drainage well and open drainage sump according to claim 1 is characterized by: The water stop joint is arranged on the sleeve and is connected and fixed to the sleeve.

8. The steel casing for the drainage well and open drainage sump according to claim 1 is characterized by: The rubber water stop strip is arranged at the connection between the water stop joint and the sleeve.

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