Plugging device for dewatering well

Abstract

The utility model discloses a dewatering well plugging device, which relates to the technical field of dewatering well plugging, and comprises a well mouth and a bearing plate positioned at the top of the well mouth, a clamping piece is arranged on the surface of the bearing plate, a plugging piece is arranged at the bottom of the clamping piece and positioned in the well mouth, and the clamping piece comprises a hydraulic cylinder mounted at the top of the bearing plate. And a driving rod is fixedly connected to the output end of the hydraulic cylinder and located at the bottom of the bearing plate, the driving rod is conical, moving blocks are movably connected to the surface of the driving rod, the moving blocks are arranged in an annular array mode, and clamping blocks are fixedly connected to the bottoms of the moving blocks. According to the dewatering well plugging device, the clamping piece is arranged, the hydraulic cylinder is started to push the driving rod, the four sets of moving blocks drive the clamping blocks to move towards the inner side of the well mouth, the whole operation can be completed until the clamping blocks and the well mouth are firmly clamped, and therefore the purpose of adapting to well mouths with different diameters can be achieved; and the problem that water flow leaks is further solved.

Description

Technical Field

[0001] The utility model relates to the technical field of drainage well plugging, in particular to a drainage well plugging device. Background Art

[0002] A precipitation well is a facility used to drain and discharge precipitation. It is used to collect surface runoff and rainwater to prevent water accumulation. During construction or maintenance work, a sealing device is usually required to temporarily seal the wellhead to ensure safety.

[0003] The diameters of precipitation wells of different standards are also different. Most of the existing sealing devices can only adapt to the wellheads of precipitation wells of specified diameters, and cannot adapt to wellheads of different diameters. In this way, the gaps between precipitation wells of different diameters cannot be effectively filled, resulting in poor sealing and inability to completely prevent water leakage. Utility Model Content

[0004] In view of the problem that the above-mentioned existing plugging devices cannot adapt to wellheads with different diameters, the present utility model is proposed.

[0005] Therefore, the utility model aims to provide a drainage well plugging device, the purpose of which is to solve the problem that the plugging device cannot adapt to wellheads of different diameters.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a drainage well plugging device, which includes a wellhead and a supporting plate located at the top of the wellhead, a clamping member is provided on the surface of the supporting plate, and a plugging member is provided at the bottom of the clamping member and located inside the wellhead, the clamping member includes a hydraulic cylinder installed on the top of the supporting plate, a driving rod is fixedly connected to the output end of the hydraulic cylinder and located at the bottom of the supporting plate, the driving rod is arranged in a conical shape, a moving block is movably connected to the surface of the driving rod, the moving blocks are arranged in a ring array, a clamping block is fixedly connected to the bottom of the moving block, the clamping block is located on the inner side of the wellhead, and a rubber strip is fixedly connected to the surface of the clamping block.

[0007] As a preferred solution of the drainage well plugging device of the utility model, wherein: the bottom of the bearing plate is fixedly connected to a limiting block, the limiting blocks are provided with four groups and arranged in a circular array, and the moving block is located on the inner side of the limiting block.

[0008] As a preferred solution of the drainage well plugging device of the utility model, wherein: a limiting plate is fixedly connected to the bottom of the limiting block, a limiting groove is opened inside the limiting plate, the limiting groove is arranged in a ring array, and the clamping block is located inside the limiting groove.

[0009] As a preferred solution of the drainage well plugging device of the utility model, one side of the moving block is fixedly connected with a spring, the other end of the spring and one end of the moving block are fixedly connected with a positioning block, and the positioning block is located on the outside of the limit block and fixedly connected thereto.

[0010] As a preferred solution of the drainage well plugging device described in the utility model, an arc groove is provided on the other side of the moving block and away from the spring, the arc groove is in contact with the driving rod, the moving block is connected to the driving rod through the arc groove, and the arc groove is arranged in a conical shape.

[0011] As a preferred solution of the drainage well plugging device of the utility model, a fixing ring is installed on the surface of the hydraulic cylinder, a connecting rod is fixedly connected to the bottom of the fixing ring, and the connecting rods are arranged in a ring array.

[0012] As a preferred solution of the drainage well plugging device of the utility model, the plugging member includes a swing rod fixed to the bottom of the clamping block, and a sealing ring is fixedly connected to the bottom of the swing rod, and the sealing ring is made of rubber.

[0013] As a preferred solution of the drainage well plugging device of the utility model, the plugging member also includes a sealing ring fixed on the surface of the clamping block, a positioning groove is opened inside the sealing ring, and the clamping block is located inside the positioning groove and fixedly connected thereto.

[0014] Beneficial effects of the utility model:

[0015] 1. The utility model is provided with a clamping piece. When in use, the bearing plate is installed on the top of the wellhead so that the clamping block is located inside the wellhead. Then the hydraulic cylinder is started to push the driving rod, so that the four groups of moving blocks drive the clamping block to move toward the inside of the wellhead until the clamping block is firmly stuck with the wellhead to complete the overall operation, thereby achieving the purpose of adapting to wellheads of different diameters and further solving the problem of water leakage.

[0016] 2. The utility model is provided with a sealing member. When in use, due to the elasticity of the sealing ring, when the clamping block is fitted with the inner side of the wellhead, the edge of the sealing ring will fit firmly with the inner side of the wellhead, thereby achieving the purpose of sealing the precipitation well. Moreover, due to the provision of the sealing ring, a second sealing area can be formed on the top of the sealing ring. The cooperation of the two can achieve a better sealing effect. Moreover, since both the sealing ring and the sealing ring are elastic, it can achieve the purpose of sealing wellheads of different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0018] Figure 1 The utility model is a schematic diagram of the overall structure of the precipitation well plugging device.

[0019] Figure 2 The utility model is a schematic diagram of the structure of the clamping member and the plugging member of the drainage well plugging device.

[0020] Figure 3 This is a diagram showing the overall structure of the drainage well plugging device of the utility model.

[0021] Figure 4 The utility model is a schematic diagram of the position relationship between some clamping parts and the plugging parts of the drainage well plugging device.

[0022] Figure 5 The utility model is a schematic diagram of the structure of a movable plate, a clamping block, a spring, a positioning block and an arc groove of the drainage well plugging device.

[0023] Description of reference numerals:

[0024] 1. Wellhead; 2. Load-bearing plate; 3. Clamping piece; 31. Hydraulic cylinder; 311. Fixed ring; 312. Connecting rod; 32. Driving rod; 33. Moving block; 331. Clamping block; 332. Rubber strip; 34. Limiting block; 35. Limiting plate; 36. Limiting groove; 37. Spring; 38. Positioning block; 39. Arc groove; 4. Blocking piece; 41. Rocker arm; 42. Sealing ring; 43. Sealing ring; 44. Positioning groove. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0026] Example 1

[0027] Reference Figure 1-5 , which is the first embodiment of the utility model, provides a drainage well plugging device, the drainage well plugging device comprises a wellhead 1, a bearing plate 2 located at the top of the wellhead 1, a clamping member 3 is provided on the surface of the bearing plate 2, and a plugging member 4 is provided at the bottom of the clamping member 3 and located inside the wellhead 1;

[0028] The clamping member 3 includes a hydraulic cylinder 31 installed on the top of the supporting plate 2, and a driving rod 32 is fixedly connected to the output end of the hydraulic cylinder 31 and located at the bottom of the supporting plate 2. The driving rod 32 is arranged in a conical shape, and a moving block 33 is movably connected to the surface of the driving rod 32. The moving block 33 is arranged in a ring array, and a clamping block 331 is fixedly connected to the bottom of the moving block 33. The clamping block 331 is located on the inner side of the wellhead 1, and a rubber strip 332 is fixedly connected to the surface of the clamping block 331. The setting of the rubber strip 332 can make the connection between the clamping block 331 and the wellhead 1 more stable. The hydraulic cylinder 31 is used to drive the driving rod 32 to drive the moving block 33 and the clamping block 331 to move toward the inner side of the wellhead 1 and clamp it, so as to achieve the purpose of adapting to wellheads 1 of different diameters.

[0029] The bottom of the supporting plate 2 is fixedly connected with a limiting block 34. The limiting blocks 34 are provided with four groups and arranged in a circular array. The moving block 33 is located on the inner side of the limiting blocks 34. The four groups of limiting blocks 34 form an octagon, which can limit the moving block 33 and enable it to move horizontally.

[0030] A limiting plate 35 is fixedly connected to the bottom of the limiting block 34, and a limiting groove 36 is provided inside the limiting plate 35. The limiting grooves 36 are arranged in a ring array, and the clamping block 331 is located inside the limiting grooves 36. The setting of the limiting grooves 36 can limit the clamping block 331 so that it can move in the horizontal direction. In combination with the use of the limiting block 34, the movement of the clamping block 331 can be more stable.

[0031] A spring 37 is fixedly connected to one side of the moving block 33, and a positioning block 38 is fixedly connected to the other end of the spring 37 and one end of the moving block 33. The positioning block 38 is located on the outside of the limit block 34 and is fixedly connected thereto. The setting of the spring 37 can make the moving block 33 elastic to prevent the moving block 33 from directly contacting the positioning block 38 when moving, and the setting of the spring 37 can also assist the clamping block 331 in clamping wellheads 1 of different diameters.

[0032] An arc groove 39 is provided on the other side of the moving block 33 and away from the spring 37. The arc groove 39 is in contact with the driving rod 32. The moving block 33 is connected to the driving rod 32 through the arc groove 39. The arc groove 39 is arranged in a conical shape. The conical arc groove 39 can facilitate the movement of the driving rod 32 and make the moving block 33 more stable when moving.

[0033] A fixing ring 311 is installed on the surface of the hydraulic cylinder 31 , and a connecting rod 312 is fixedly connected to the bottom of the fixing ring 311 . The connecting rods 312 are arranged in a ring array and are used to position the hydraulic cylinder 31 .

[0034] During use, the carrying plate 2 is installed on the top of the wellhead 1 so that the clamping block 331 is located inside the wellhead 1, and then the hydraulic cylinder 31 is started to push the driving rod 32 to move along the surface of the arc groove 39. Since the driving rod 32 is adapted to the arc groove 39, during the movement, the four groups of moving blocks 33 will move along the inner side of the limit block 34 in the direction away from the driving rod 32, and drive the clamping block 331 to move along the inside of the limit groove 36 toward the inner side of the wellhead 1. At the same time, the moving block 33 will squeeze the spring 37 to cause it to deform. When the clamping block 331 contacts the inner side of the wellhead 1, the rubber strip 332 on its surface will preferentially contact the inner side of the wellhead 1. Since the rubber strip 332 can increase the friction between the clamping block 331 and the wellhead 1, the connection between the two can be made more stable, until the clamping block 331 is firmly stuck with the wellhead 1 to complete the overall operation, thereby achieving the purpose of adapting to wellheads 1 of different diameters, further solving the problem of water leakage.

[0035] Example 2

[0036] Reference Figure 1-5 , which is the second embodiment of the utility model, and this embodiment is different from the first embodiment in that:

[0037] The sealing member 4 includes a rocker arm 41 fixed at the bottom of the clamping block 331, and a sealing ring 42 is fixedly connected to the bottom of the rocker arm 41. The sealing ring 42 is made of rubber material. The rubber sealing ring 42 has good elasticity and can be stretched according to the movement of the clamping block 331 and fit with the inner side of the wellhead 1, thereby achieving the purpose of sealing.

[0038] The sealing member 4 also includes a sealing ring 43 fixed on the surface of the clamping block 331. A positioning groove 44 is provided inside the sealing ring 43. The clamping block 331 is located inside the positioning groove 44 and is fixedly connected thereto. The sealing ring 43 cooperates with the sealing ring 42 to achieve double-layer sealing, which can achieve a better sealing effect.

[0039] During use, since the sealing ring 42 is elastic, when the clamping block 331 moves toward the inside of the wellhead 1, it will drive the sealing ring 42 to stretch through the rocker arm 41. When the clamping block 331 is completely fitted with the inside of the wellhead 1, the edge of the sealing ring 42 will be firmly fitted with the inside of the wellhead 1, thereby achieving the purpose of sealing the precipitation well. Due to the setting of the sealing ring 43, a second sealing area can be formed on the top of the sealing ring 42. The two work together to achieve a better sealing effect. Moreover, since both the sealing ring 42 and the sealing ring 43 are elastic, they can achieve the purpose of sealing wellheads 1 of different diameters.

[0040] The remaining structures are the same as those of Example 1.

[0041] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A drainage well plugging device, comprising a wellhead (1) and a bearing plate (2) located at the top of the wellhead (1), characterized in that: A clamping member (3) is provided on the surface of the bearing plate (2), and a blocking member (4) is provided at the bottom of the clamping member (3) and located inside the wellhead (1); The clamping member (3) comprises a hydraulic cylinder (31) mounted on the top of the bearing plate (2); a driving rod (32) is fixedly connected to the output end of the hydraulic cylinder (31) and located at the bottom of the bearing plate (2); the driving rod (32) is arranged in a conical shape; a moving block (33) is movably connected to the surface of the driving rod (32); the moving blocks (33) are arranged in a ring array; a clamping block (331) is fixedly connected to the bottom of the moving block (33); the clamping block (331) is located on the inner side of the wellhead (1); and a rubber strip (332) is fixedly connected to the surface of the clamping block (331).

2. The drainage well plugging device according to claim 1, characterized in that: The bottom of the bearing plate (2) is fixedly connected to a limiting block (34), the limiting blocks (34) are provided with four groups and arranged in a ring array, and the moving block (33) is located on the inner side of the limiting block (34).

3. The drainage well plugging device according to claim 2, characterized in that: The bottom of the limiting block (34) is fixedly connected to a limiting plate (35), the limiting plate (35) has a limiting groove (36) disposed inside, the limiting grooves (36) are arranged in a ring array, and the clamping block (331) is located inside the limiting groove (36).

4. The drainage well plugging device according to claim 3 is characterized in that: A spring (37) is fixedly connected to one side of the moving block (33), and a positioning block (38) is fixedly connected to the other end of the spring (37) and one end of the moving block (33). The positioning block (38) is located outside the limiting block (34) and is fixedly connected thereto.

5. The drainage well plugging device according to claim 4, characterized in that: An arc groove (39) is provided on the other side of the moving block (33) and away from the spring (37). The arc groove (39) is in contact with the driving rod (32). The moving block (33) is connected to the driving rod (32) via the arc groove (39). The arc groove (39) is arranged in a conical shape.

6. The drainage well plugging device according to claim 1, characterized in that: A fixing ring (311) is installed on the surface of the hydraulic cylinder (31), and a connecting rod (312) is fixedly connected to the bottom of the fixing ring (311), and the connecting rods (312) are arranged in a ring array.

7. The drainage well plugging device according to claim 1, characterized in that: The blocking member (4) comprises a swing rod (41) fixed to the bottom of the clamping block (331), and a sealing ring (42) is fixedly connected to the bottom of the swing rod (41), and the sealing ring (42) is made of rubber.

8. The drainage well plugging device according to claim 7, characterized in that: The blocking member (4) further comprises a sealing ring (43) fixed on the surface of the clamping block (331); a positioning groove (44) is provided inside the sealing ring (43); the clamping block (331) is located inside the positioning groove (44) and is fixedly connected thereto.

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