Dewatering plugging device for deep well of foundation pit

Abstract

The utility model relates to the field of foundation pit deep well plugging equipment, in particular to a foundation pit deep well dewatering plugging device which comprises a placing frame, placing rods are welded to the bottom of the placing frame, the distance between the two placing rods is larger than the outer diameter of a foundation pit deep well, and a limiting guide rod is fixedly installed in the middle of the top of the placing frame. Sliding sleeves are adjusted on the outer walls of the limiting guide rods, supporting rods are symmetrically welded to the outer side walls of the sliding sleeves, and conical barrels are fixedly connected to the outer sides of the supporting rods; the outer ring area of the conical barrel is wrapped with a silica gel sleeve, the inner ring close to the bottom of the silica gel sleeve is adhered to the outer wall of the conical barrel through glue, and a foam sleeve is adhered to the outer wall of the silica gel sleeve. An annular hole is formed in the position close to the bottom of the conical barrel, the area, located below the annular hole, of the conical barrel is a sinking part, penetrating holes are formed in the end face, located at the bottom of the annular hole, of the conical barrel in the circumferential direction at equal intervals, an inserting rod is inserted into each penetrating hole, and the plugging device has the advantages of being wide in application range and good in plugging effect.

Description

Technical Field

[0001] The utility model relates to the field of foundation pit deep well plugging equipment, in particular to a foundation pit deep well dewatering and plugging device. Background Art

[0002] During the foundation pit construction process, the deep well of the foundation pit is also a precipitation well, which is used to drain the foundation pit. In rainy weather, in order to prevent a large amount of rainwater from being stored in the deep well and causing infiltration into the foundation pit, the deep well needs to be blocked. The deep well blocking must ensure that it cannot be carried out simultaneously with the structural construction, and subsequent treatment is required to ensure the waterproof effect. At the same time, the well blocking process is simple, convenient and fast. With feasible auxiliary measures, the well blocking construction can be completed quickly to ensure that the water stopping work is completed before the water level rises to the wellhead, and the well blocking does not change the force and use function of the original structure.

[0003] Therefore, metal covers or sealing air bags are often used in the traditional deep well plugging method. This method has the characteristic of fast plugging speed, but generally speaking, metal covers and sealing air bags are single and cannot meet the plugging needs of deep wells of different sizes. At the same time, due to the small grooves on the wellheads of some deep wells during the construction process, the sealing effect of metal covers and sealing air bags is low, and they cannot completely plug the deep wells. Utility Model Content

[0004] In view of the problems in the prior art, the utility model provides a foundation pit deep well dewatering and plugging device.

[0005] The utility model solves the technical problem by adopting the following technical solution: a foundation pit deep well dewatering plugging device, comprising a placing frame, a placing rod is welded at the bottom of the placing frame, and the distance between the two placing rods is greater than the outer diameter of the foundation pit deep well, a limiting guide rod is fixedly installed in the center of the top of the placing frame, a sliding sleeve is adjusted on the outer wall of the limiting guide rod, support rods are symmetrically welded on the outer side wall of the sliding sleeve, and a cone barrel is fixedly connected to the outer side of the support rod;

[0006] A silicone sleeve is wrapped along the outer ring area of ​​the cone barrel, the bottom inner ring close to the silicone sleeve is bonded to the outer wall of the cone barrel by glue, and a foam sleeve is bonded to the outer wall of the silicone sleeve.

[0007] Specifically, an annular hole is opened near the bottom of the cone barrel, the area of ​​the cone barrel below the annular hole is the sinking part, and the bottom end surface of the cone barrel located at the annular hole is provided with through holes at equal intervals in the circumferential direction, and an insertion rod is inserted in each through hole, and the bottom of the insertion rod is fixedly connected to the upper end surface of the sinking part, and rectangular blocks are welded at equal angles on the outer wall of the sinking part, and elastic sealing gaskets are bonded to the inner walls of the cone barrel and the sinking part. The cross-section of the top area of ​​the silicone sleeve is semi-elliptical, and a circular hole is opened on the outer side of the silicone sleeve in the semi-elliptical area, and insertion holes are opened at equal angles on the inner wall of the silicone sleeve, and a traction rope is inserted in each insertion hole, one end of the traction rope is fixedly connected to the rectangular block, and the other end of the traction rope passes through the circular hole and leaks out of the silicone sleeve, and a limiting ball is fixedly installed at the end of the traction rope.

[0008] Specifically, the thickness of the silicone sleeve is 5-10 mm, and the thickness of the foam sleeve is 10-20 mm.

[0009] Specifically, the non-adhesive area of ​​the elastic sealing pad is in a relaxed state.

[0010] Specifically, a spherical stopper is installed on the top of the insertion rod, and the outer wall surface of the spherical stopper is a smooth surface.

[0011] Specifically, the outer diameter of the limiting ball is larger than the inner diameter of the circular hole, and the outer side surface of the silicone sleeve is a frosted surface.

[0012] Specifically, a circular chamfer is provided at the top edge of the sinking portion.

[0013] Beneficial effects of the utility model:

[0014] The utility model discloses a foundation pit deep well dewatering and plugging device. The utility model can avoid the situation that the cone barrel is tilted relative to the deep well by placing a placement frame first and then dropping the cone barrel, thereby ensuring that the outer wall of the cone barrel is in full contact with the wellhead of the deep well. Facing deep wells of different diameters, the contact area between the outer wall of the cone barrel and the wellhead of the deep well is different, that is, the vertical placement position of the cone barrel can be controlled by sliding the sliding sleeve on the limiting guide rod, which is suitable for the plugging needs of deep wells of different diameters and can utilize the stored rainwater to increase its own plugging effect.

[0015] The utility model discloses a foundation pit deep well dewatering and plugging device. When the rectangular block moves vertically downward, the traction rope will be pulled, and the limiting ball end of the traction rope will pull the top of the silicone sleeve with a semi-elliptical cross-section downward, and its specific state changes from the initial state in the figure to the compressed state shown in the figure, and the silicone sleeve shape shown in the figure is only used as a reference state, the compressed shape of the non-silicone sleeve in the actual process, the part of the silicone sleeve and the foam sleeve squeezed by the limiting ball will squeeze the wellhead of the deep well, further increasing the sealing area of ​​the deep well wellhead, and at the same time, when the traction rope is pulling the limiting ball, the traction rope increases the extrusion force on the inner side of the silicone sleeve located at the wellhead of the deep well, so that the silicone sleeve reacts to the foam sleeve, making it fit more closely to the wellhead of the deep well. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0018] Figure 2 This is a front view of the installation position of the utility model;

[0019] Figure 3 The cross section of the utility model Figure 1 ;

[0020] Figure 4 The cross section of the utility model Figure 2 ;

[0021] Figure 5 For this utility model Figure 3 A partial enlarged view of the middle A area;

[0022] Figure 6 For this utility model Figure 4 A partial enlarged view of the middle B area;

[0023] In the figure: 1. placement rack; 2. limiting guide rod; 3. sliding sleeve; 4. support rod; 5. cone barrel; 6. silicone sleeve; 7. foam sleeve; 51. annular hole; 52. sinking part; 53. perforation; 54. insertion rod; 55. rectangular block; 56. elastic sealing pad; 60. round hole; 61. insertion hole; 62. traction rope; 63. limiting ball. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] In addition, the terms used below are defined based on the functions of the present invention and may vary depending on the intention or custom of the user or operator. Therefore, these terms are defined based on the entire contents of this specification.

[0026] See also Figure 1-6 The utility model discloses a foundation pit deep well dewatering and plugging device, comprising a placing frame 1, a placing rod 11 is welded at the bottom of the placing frame 1, and the distance between the two placing rods 11 is greater than the outer diameter of the foundation pit deep well, and the foundation pit deep well is the majority of deep wells with different diameters under construction. When the placing frame 1 is placed on the foundation pit, the two placing rods 11 are located on the upper surface of the foundation pit and do not contact the deep well;

[0027] like Figure 1 As shown, a limiting guide rod 2 is fixedly installed in the center of the top of the placement rack 1, and a sliding sleeve 3 is adjusted on the outer wall of the limiting guide rod 2. Support rods 4 are symmetrically welded on the outer wall of the sliding sleeve 3. A cone barrel 5 is fixedly connected to the outer side of the support rod 4. The placement rack 1 should be placed vertically, that is, placed from top to bottom along the top of the deep well. During the placement process, the outer periphery of the cone barrel 5 will contact the edge of the wellhead of the deep well, thereby sealing the deep well and achieving the effect of water reduction and plugging.

[0028] During the construction process, the surface of the foundation pit ground can be regarded as a general horizontal plane. By placing the placement rack 1 first and then dropping the cone barrel 5, the cone barrel 5 can be prevented from tilting relative to the deep well, thereby ensuring that the outer wall of the cone barrel 5 is in full contact with the wellhead of the deep well; facing deep wells of different diameters, the contact area between the outer wall of the cone barrel 5 and the wellhead of the deep well is different, that is, the vertical placement position of the cone barrel 5 can be controlled by sliding the sliding sleeve 3 on the limit guide rod 2, which is suitable for the plugging requirements of deep wells of different diameters;

[0029] A silicone sleeve 6 is wrapped along the outer ring area of ​​the cone barrel 5, and the bottom inner ring near the silicone sleeve 6 is glued to the outer wall of the cone barrel 5. A foam sleeve 7 is bonded to the outer wall of the silicone sleeve 6. The thickness of the silicone sleeve 6 is 5-10mm, and the thickness of the foam sleeve 7 is 10-20mm. In daily use, the silicone sleeve 6 and the foam sleeve 7 with this thickness are not easy to be scratched. In this case, when the cone barrel 5 contacts the deep well, the foam sleeve 7 is a direct contact component with the wellhead of the deep well. Under the weight of the cone barrel 5 itself, the foam sleeve 7 is directly in contact with the wellhead of the deep well. Under the action of force, the foam sleeve 7 in contact with the wellhead of the deep well is deformed inwardly, and the silicone sleeve 6 is deformed to a certain extent simultaneously, so that the foam sleeve 7 can cover the irregular areas on the edge of the wellhead of the deep well, such as the gaps and some cement defects caused by the construction, further increasing the sealing of the connection with the deep well, and achieving a better sealing effect; at the same time, when it rains, part of the rainwater will fall into the inside of the cone barrel 5, and the weight of the internal rainwater will exert pressure on the cone barrel 5, making the foam sleeve 7 and the wellhead of the deep well become tighter and tighter.

[0030] In another embodiment, see Figure 2-Figure 6An annular hole 51 is provided near the bottom of the cone barrel 5. The area below the annular hole 51 of the cone barrel 5 is a sinking part 52. The bottom end surface of the cone barrel 5 located at the annular hole 51 is provided with perforations 53 at equal intervals in the circumferential direction. A plug rod 54 is inserted into each perforation 53. The bottom of the plug rod 54 is fixedly connected to the upper end surface of the sinking part 52. A rectangular block 55 is welded at equal angles on the outer wall of the sinking part 52. An elastic sealing pad 56 is bonded to the inner wall of the cone barrel 5 and the sinking part 52. The non-adhesive area of ​​the elastic sealing pad 56 It is in a relaxed state, that is, in the initial state, the sinking part 52 causes the insertion rod 54 arranged on the top thereof to slide a small distance in the through hole 53 under the action of its own gravity. When it rains naturally, rainwater will fall onto the elastic sealing pad 56 inside the cone barrel 5. The sinking part 52 is directly subjected to the pressure of the rainwater stored on the elastic sealing pad 56, so that the downward movement of the sinking part 52 increases, and the rectangular block 55 moves downward together with the sinking part 52. When the upper surface of the elastic sealing pad 56 is covered with rainwater, it itself is also in a relaxed state.

[0031] The cross-section of the top area of ​​the silicone sleeve 6 is semi-elliptical, which can also be understood as the top area of ​​the silicone sleeve 6 is in a folded state. A circular hole 60 is provided on the outside of the silicone sleeve 6 in the semi-elliptical area, and plug holes 61 are provided at equal angles in the circumferential direction of the inner wall of the silicone sleeve 6. A traction rope 62 is inserted into each plug hole 61. One end of the traction rope 62 is fixedly connected to the rectangular block 55, and the other end of the traction rope 62 passes through the circular hole 60 and leaks out of the silicone sleeve 6, and a limiting ball 63 is fixedly installed at the end of the traction rope 62. During specific operation, when the rectangular block 55 moves vertically downward, the traction rope 62 will be pulled, and the limiting ball 63 end of the traction rope 62 will pull the top of the silicone sleeve 6 in the semi-elliptical cross-section area downward. The specific state is shown by Figure 3 The initial state becomes Figure 4 The compressed state shown and Figure 4 The shape of the silicone sleeve 6 shown in the figure is only for reference. The non-silicone sleeve 6 is in a compressed shape in the actual process. The part of the silicone sleeve 6 and the foam sleeve 7 squeezed by the limiting ball 63 will squeeze the wellhead of the deep well, further increasing the sealing area of ​​the wellhead of the deep well. At the same time, when the traction rope 62 pulls the limiting ball 63, the traction rope 62 increases the squeezing force on the inner side of the silicone sleeve 6 located at the wellhead of the deep well, so that the silicone sleeve 6 reacts to the foam sleeve 7, making it fit better with the wellhead of the deep well.

[0032] See also Figure 5 A spherical stopper is installed on the top of the insertion rod 54 to limit the vertical downward movement of the sinking portion 52, and the outer wall surface of the spherical stopper is a smooth surface to reduce the wear of the spherical stopper on the inner wall of the elastic sealing pad 56.

[0033] See also Figure 6 The outer diameter of the limiting ball 63 is larger than the inner diameter of the circular hole 60 to prevent the limiting ball 63 from passing through the circular hole 60, and the outer side surface of the silicone sleeve 6 is a frosted surface to increase the friction with the deep well surface.

[0034] See also Figure 5 The top edge of the sinking portion 52 is provided with an arc chamfer to reduce the wear of the top edge of the sinking portion 52 on the traction rope 62.

[0035] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A foundation pit deep well dewatering and plugging device, comprising a placement frame (1), characterized in that: A placement rod (11) is welded at the bottom of the placement rack (1), and the distance between the two placement rods (11) is greater than the outer diameter of the foundation pit. A limit guide rod (2) is fixedly installed in the center of the top of the placement rack (1), and a sliding sleeve (3) is adjusted on the outer wall of the limit guide rod (2). Support rods (4) are symmetrically welded on the outer wall of the sliding sleeve (3), and a cone barrel (5) is fixedly connected to the outer side of the support rod (4); A silicone sleeve (6) is wrapped along the outer ring area of ​​the cone barrel (5), and the inner ring near the bottom of the silicone sleeve (6) is bonded to the outer wall of the cone barrel (5) by glue, and a foam sleeve (7) is bonded to the outer wall of the silicone sleeve (6).

2. A foundation pit deep well dewatering and plugging device according to claim 1, characterized in that: An annular hole (51) is provided near the bottom of the cone barrel (5); the area of ​​the cone barrel (5) below the annular hole (51) is a sinking portion (52); the bottom end surface of the cone barrel (5) located at the annular hole (51) is provided with perforations (53) at equal intervals in the circumferential direction; a plug rod (54) is inserted into each perforation (53); the bottom of the plug rod (54) is fixedly connected to the upper end surface of the sinking portion (52); a rectangular block (55) is welded at equal angles to the outer wall of the sinking portion (52); and the cone barrel (5) and the inner wall of the sinking portion (52) are bonded with a The elastic sealing pad (56) has a semi-elliptical cross-section in the top region of the silicone sleeve (6), a circular hole (60) is provided on the outer side of the silicone sleeve (6) in the semi-elliptical region, and the inner wall of the silicone sleeve (6) is provided with insertion holes (61) at equal angles in the circumferential direction, and a traction rope (62) is inserted into each insertion hole (61), one end of the traction rope (62) is fixedly connected to the rectangular block (55), and the other end of the traction rope (62) passes through the circular hole (60) and leaks out of the silicone sleeve (6), and a limiting ball (63) is fixedly installed at the end of the traction rope (62).

3. The deep well dewatering and plugging device for foundation pit according to claim 1, characterized in that: The thickness of the silicone sleeve (6) is 5-10 mm, and the thickness of the foam sleeve (7) is 10-20 mm.

4. The deep well dewatering and plugging device for foundation pit according to claim 2, characterized in that: The non-adhesive area of ​​the elastic sealing pad (56) is in a relaxed state.

5. The deep well dewatering and plugging device for foundation pit according to claim 2, characterized in that: A spherical stopper is installed on the top of the insertion rod (54), and the outer wall surface of the spherical stopper is a smooth surface.

6. The deep well dewatering and plugging device for foundation pit according to claim 2, characterized in that: The outer diameter of the limiting ball (63) is larger than the inner diameter of the circular hole (60), and the outer side surface of the silicone sleeve (6) is a frosted surface.

7. The deep well dewatering and plugging device for foundation pit according to claim 2, characterized in that: A circular arc chamfer is provided at the top edge of the sinking portion (52).

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