A precipitation well steel casing flange type plugging device

Abstract

The utility model discloses a kind of precipitation well steel casing flange type plugging devices, relate to underground engineering waterproof technical field, including steel casing, steel casing inside is fixedly connected with steel sheet waterstop ring, the waterstop flange is provided at steel sheet waterstop ring top, the quick mounting mechanism is provided at the waterstop flange top, the waterstop ring and the waterstop flange between waterstop flange top are provided with anti-permeation mechanism.The utility model relates to a kind of precipitation well steel casing flange type plugging devices, the design of quick mounting mechanism, so that operator only needs to rotate the head, can be connected and fixed by the cooperation of gear and clamping rack, realize the quick connection and fixing of waterstop flange and steel sheet waterstop ring, greatly shorten installation time, improve construction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of waterproofing technology for underground engineering, and in particular to a flange-type sealing device for steel casing of dewatering wells. Background Technology

[0002] In underground engineering construction, dewatering wells are commonly used drainage facilities. Their function is to lower the groundwater level and ensure a dry environment for construction. After the dewatering wells have fulfilled their purpose, they need to be effectively sealed to prevent groundwater leakage from affecting the surrounding environment and engineering structure. The steel casing flange-type sealing device for dewatering wells is a reliable technical solution for sealing dewatering wells in foundation pit dewatering projects.

[0003] The existing technology has the following problems:

[0004] Traditional methods of sealing rainwater wells have many problems. Some sealing structures are complex to install, consume a lot of manpower and time, and affect the construction progress. Utility Model Content

[0005] This utility model provides a flange-type sealing device for steel casing of dewatering wells to solve the problems mentioned in the background art, such as the complex installation of some sealing structures, the large amount of manpower and time required, and the impact on construction progress.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A flange-type sealing device for a dewatering well steel casing includes a steel casing, a steel plate water-stop ring fixedly connected inside the steel casing, a water-stop flange provided on the top of the steel plate water-stop ring, a quick installation mechanism provided on the top of the water-stop flange, and an anti-seepage mechanism provided between the steel plate water-stop ring and the water-stop flange.

[0008] The quick installation mechanism includes two fixing blocks and two outer shells. The outer sides of the two fixing blocks are fixedly connected to the top of the steel plate water-stop ring, and the outer sides of the two outer shells are fixedly connected to the top of the water-stop flange. A support rod is fixedly connected inside the outer shell. A spring is sleeved on the outer periphery of the support rod. A snap-fit ​​rack is slidably connected to the outer periphery of the support rod. A gear is rotatably connected inside the outer shell, and a rotating head is fixedly connected to the top of the gear.

[0009] The seepage prevention mechanism includes a rubber ring and a sealing ring. The rubber ring is disposed between the steel plate water-stop ring and the water-stop flange. The rubber ring has two bolts connected internally by threads. The sealing ring is disposed between the steel plate water-stop ring and the water-stop flange.

[0010] Preferably, one end of the spring is fixedly connected to the inner wall of the housing, and the other end of the spring is fixedly connected to the outer side of the snap-fit ​​rack.

[0011] Preferably, the outer side of the snap-fit ​​rack is slidably connected to the inside of the housing, and the snap-fit ​​rack and the gear mesh with each other.

[0012] Preferably, the outer side of the fixing block is slidably connected to the inside of the water-stop flange.

[0013] Preferably, the bottom of the rotating head is rotatably connected to the top of the housing.

[0014] Preferably, the outer side of the snap-fit ​​rack is slidably connected inside the fixing block.

[0015] Preferably, the outer circumferential thread of the bolt is connected to the inside of the water-stop flange.

[0016] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0017] 1. This utility model provides a flange-type sealing device for steel casing of dewatering wells. The design of the quick installation mechanism allows the operator to quickly connect and fix the water-stop flange and the steel plate water-stop ring by simply turning the rotating head through the cooperation of gears and snap-fit ​​racks, which greatly shortens the installation time and improves construction efficiency.

[0018] 2. This utility model provides a flange-type sealing device for steel casing of a dewatering well. The dual setting of rubber ring and sealing ring in the anti-seepage mechanism, and the method of tightening the rubber ring with bolts, can effectively prevent groundwater leakage, improve the anti-seepage performance of the sealing device, and ensure the waterproof effect of the project. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a half-sectional three-dimensional structural diagram of the steel sleeve of this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the seepage prevention mechanism of this utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the internal structure of the outer shell of this utility model;

[0023] Figure 5 This is a three-dimensional structural diagram of the outer shell of this utility model.

[0024] In the diagram: 1. Steel sleeve; 2. Steel plate water-stop ring; 3. Water-stop flange; 4. Quick installation mechanism; 40. Fixing block; 42. Outer shell; 43. Support rod; 44. Spring; 45. Snap-fit ​​rack; 46. Gear; 47. Rotary head; 5. Anti-seepage mechanism; 50. Rubber ring; 51. Bolt; 52. Sealing ring. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] like Figure 1-5 As shown, a steel casing flange-type sealing device for a dewatering well includes a steel casing 1, a steel plate water-stop ring 2 fixedly connected inside the steel casing 1, a water-stop flange 3 provided on the top of the steel plate water-stop ring 2, a quick installation mechanism 4 provided on the top of the water-stop flange 3, and an anti-seepage mechanism 5 provided between the steel plate water-stop ring 2 and the water-stop flange 3.

[0027] The quick installation mechanism 4 includes two fixing blocks 40 and two outer shells 42. The outer sides of the two fixing blocks 40 are fixedly connected to the top of the steel plate water-stop ring 2. The outer sides of the two outer shells 42 are fixedly connected to the top of the water-stop flange 3. A support rod 43 is fixedly connected inside the outer shell 42. A spring 44 is sleeved on the outer periphery of the support rod 43. A snap-fit ​​rack 45 is slidably connected to the outer periphery of the support rod 43. A gear 46 is rotatably connected inside the outer shell 42. A rotating head 47 is fixedly connected to the top of the gear 46.

[0028] It should be noted that when the fixing block 40 is aligned with the corresponding position on the water-stop flange 3, the outer side of the fixing block 40 is inserted into the inside of the water-stop flange 3 and slid to the appropriate position. At this time, the outer shell 42 also moves to the corresponding position along with the water-stop flange 3. Rotating the rotating head 47 drives the gear 46 to rotate. Since the gear 46 meshes with the snap-fit ​​rack 45, the snap-fit ​​rack 45 slides along the support rod 43 inside the outer shell 42, while compressing or stretching the spring 44. When the snap-fit ​​rack 45 moves to align with the snap-fit ​​groove inside the fixing block 40, under the action of the spring 44, the snap-fit ​​rack 45 snaps into the snap-fit ​​groove of the fixing block 40, realizing the quick installation and fixation of the water-stop flange 3 and the steel plate water-stop ring 2.

[0029] The seepage prevention mechanism 5 includes a rubber ring 50 and a sealing ring 52. The rubber ring 50 is located between the steel plate water-stop ring 2 and the water-stop flange 3. The rubber ring 50 has two bolts 51 internally threaded. The sealing ring 52 is located between the steel plate water-stop ring 2 and the water-stop flange 3.

[0030] It should be noted that the rubber ring 50 and the sealing ring 52 in the seepage prevention mechanism 5 work together to prevent groundwater from leaking through the gap between the steel plate water-stop ring 2 and the water-stop flange 3.

[0031] like Figure 2 , Figure 4 As shown, one end of the spring 44 is fixedly connected to the inner wall of the outer casing 42, and the other end of the spring 44 is fixedly connected to the outer side of the snap-fit ​​rack 45.

[0032] It should be noted that the elasticity of the spring 44 is used to keep the snap-fit ​​rack 45 in a certain position when it is not subjected to external force, which facilitates installation and disassembly.

[0033] like Figure 2 , Figure 4 As shown, the outer side of the snap-fit ​​rack 45 is slidably connected to the inside of the housing 42, and the snap-fit ​​rack 45 and the gear 46 mesh with each other.

[0034] It should be noted that this structural design enables reliable control of the up-and-down movement of the locking rack 45 when the gear 46 is rotated by rotating the rotating head 47, thus achieving quick installation and fixation.

[0035] like Figure 2 , Figure 4 As shown, the outer side of the fixing block 40 is slidably connected to the inside of the water-stop flange 3.

[0036] It should be noted that this ensures the stability of the connection between the fixing block and the water-stop flange, while also facilitating position adjustment during installation to ensure precise installation of the device.

[0037] like Figure 2 , Figure 4 As shown, the bottom of the rotating head 47 is rotatably connected to the top of the housing 42.

[0038] It should be noted that the rotating head 47 is designed to rotate flexibly, allowing operators to control the movement of the quick-installation mechanism by rotating the rotating head 47.

[0039] like Figure 2 , Figure 4 As shown, the outer side of the snap-fit ​​rack 45 is slidably connected to the inside of the fixing block 40.

[0040] It should be noted that the stability of the snap-fit ​​rack 45 movement has been further enhanced to prevent it from shifting during movement and to ensure a firm and reliable snap-fit ​​with the fixed block 40.

[0041] like Figure 2 , Figure 3 As shown, the outer thread of bolt 51 is connected to the inside of the water-stop flange 3.

[0042] It should be noted that tightening bolt 51 can effectively compress rubber ring 50, enhancing the anti-seepage effect, while also facilitating disassembly and maintenance.

[0043] The working principle of this utility model is as follows: When installing the steel casing flange-type sealing device for dewatering wells, firstly, the steel casing 1 is installed in the dewatering well according to the design requirements. Then, the rubber ring 50 and sealing ring 52 of the anti-seepage mechanism 5 are placed between the steel plate water-stop ring 2 and the water-stop flange 3. By tightening the bolts 51, the rubber ring 50 is tightly fitted between the steel plate water-stop ring 2 and the water-stop flange 3, enhancing the anti-seepage effect. Next, the quick installation mechanism 4 is operated. The fixing block 40 is aligned with the corresponding position on the water-stop flange 3, and the outer side of the fixing block 40 is inserted into the inside of the water-stop flange 3 and slid to the appropriate position. At this time, the outer shell 42 also moves with the water-stop flange 3. Move the device to the appropriate position and rotate the head 47. The head 47 drives the gear 46 to rotate. Since the gear 46 meshes with the snap-fit ​​rack 45, the snap-fit ​​rack 45 slides along the support rod 43 inside the outer casing 42, while simultaneously compressing or stretching the spring 44. When the snap-fit ​​rack 45 moves to align with the slot inside the fixing block 40, under the action of the spring 44, the snap-fit ​​rack 45 snaps into the slot of the fixing block 40, realizing the quick installation and fixation of the water-stop flange 3 and the steel plate water-stop ring 2. During use, the rubber ring 50 and the sealing ring 52 in the seepage prevention mechanism 5 work together to prevent groundwater from leaking from the gap between the steel plate water-stop ring 2 and the water-stop flange 3. If it is necessary to disassemble the sealing device, rotate the head 47 in the opposite direction to disengage the snap-fit ​​rack 45 from the slot of the fixing block 40, then remove the water-stop flange 3 from the steel plate water-stop ring 2, and then remove the bolts 51 to disassemble the seepage prevention mechanism 5.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A flange-type sealing device for a dewatering well steel casing, comprising a steel casing (1), characterized in that: A steel plate waterstop ring (2) is fixedly connected inside the steel sleeve (1). A waterstop flange (3) is provided on the top of the steel plate waterstop ring (2). A quick installation mechanism (4) is provided on the top of the waterstop flange (3). An anti-seepage mechanism (5) is provided between the steel plate waterstop ring (2) and the waterstop flange (3). The quick installation mechanism (4) includes two fixing blocks (40) and two outer shells (42). The outer sides of the two fixing blocks (40) are fixedly connected to the top of the steel plate water-stop ring (2). The outer sides of the two outer shells (42) are fixedly connected to the top of the water-stop flange (3). A support rod (43) is fixedly connected inside the outer shell (42). A spring (44) is sleeved on the outer periphery of the support rod (43). A snap-fit ​​rack (45) is slidably connected to the outer periphery of the support rod (43). A gear (46) is rotatably connected inside the outer shell (42). A rotating head (47) is fixedly connected to the top of the gear (46). The seepage prevention mechanism (5) includes a rubber ring (50) and a sealing ring (52). The rubber ring (50) is disposed between the steel plate water-stop ring (2) and the water-stop flange (3). The rubber ring (50) has two bolts (51) internally threaded. The sealing ring (52) is disposed between the steel plate water-stop ring (2) and the water-stop flange (3).

2. The flange-type sealing device for a dewatering well steel casing according to claim 1, characterized in that: One end of the spring (44) is fixedly connected to the inner wall of the outer shell (42), and the other end of the spring (44) is fixedly connected to the outer side of the snap-fit ​​rack (45).

3. The flange-type sealing device for a dewatering well steel casing according to claim 1, characterized in that: The snap-fit ​​rack (45) is slidably connected to the inside of the housing (42) on the outside, and the snap-fit ​​rack (45) meshes with the gear (46).

4. The flange-type sealing device for a dewatering well steel casing according to claim 1, characterized in that: The outer side of the fixing block (40) is slidably connected to the inside of the water-stop flange (3).

5. The flange-type sealing device for a dewatering well steel casing according to claim 1, characterized in that: The bottom of the rotating head (47) is rotatably connected to the top of the outer casing (42).

6. The flange-type sealing device for a dewatering well steel casing according to claim 1, characterized in that: The outer side of the snap-fit ​​rack (45) is slidably connected to the inside of the fixing block (40).

7. The flange-type sealing device for steel casing of a dewatering well according to claim 1, characterized in that: The outer circumference of the bolt (51) is threaded into the inside of the water-stop flange (3).

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