Hole sealing device for drilling construction

Abstract

The utility model discloses a hole sealing device for drilling construction, and relates to the technical field of drilling orifice sealing equipment. The bottom of the seat body is fixedly connected with a hole sealing disc, the outside of the hole sealing disc is fixedly sleeved with an air bag, the interior of the seat body is fixedly connected with an inner pipe, the lower end of the inner pipe penetrates through the bottom of the hole sealing disc, the upper end of the inner pipe is fixedly provided with a branch pipe, and the branch pipe extends to the outside of the seat body. The inside of the air bag is inflated through the inflation pipe, so that the air bag effectively abuts against the inner side wall of a drilling hole, the drilling holes with different hole diameters can be sealed through the air bag, the three groups of barbs are driven to expand outwards, the tips of the barbs are inserted into the inner wall of the drilling hole, and the seat body is prevented from moving upwards through the barbs. And fixing nails penetrate through the fixing holes and are inserted into the ground, the fixing disc is fixed to the ground, double fixing of the hole sealing device is achieved, and therefore the device can be effectively prevented from being jacked up due to the fact that pressure in the drilled hole is too high.

Description

Technical Field

[0001] The utility model belongs to the technical field of drilling hole sealing equipment, in particular to a hole sealing device for drilling construction. Background Art

[0002] In geological drilling, well leakage is a common problem that troubles construction units. Severe well leakage will cause the pressure in the well to drop, affecting normal drilling, causing the well wall to become unstable, and inducing formation fluids to flow into the wellbore and cause blowouts. At this time, the drilling hole needs to be sealed or backfilled with materials. In this process, a sealing device for drilling construction is needed. When in use, the existing sealing device cannot adapt well to the sealing of drilling holes of different sizes, and when fixing the sealing device, a single method of fixing the fixing plate on the sealing device to the ground is mostly used, which makes the sealing device unstable and it is easy to push the sealing device upward when the pressure inside the drilling hole is too high. In view of this, we propose a sealing device for drilling construction. Utility Model Content

[0003] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0004] The utility model discloses a sealing device for drilling construction, comprising a seat body, the bottom of the seat body is fixedly connected with a sealing plate, the outer sleeve of the sealing plate is fixed with an air bag, the inner sleeve of the seat body is fixedly connected with an inner tube, the lower end of the inner tube passes through the bottom of the sealing plate, the upper end of the inner tube is fixedly provided with a branch pipe, the branch pipe extends to the outside of the seat body, and a hand valve is sleeved and fixed on the branch pipe, the two sides of the seat body above the sealing plate are symmetrically connected with barbs through a connecting axis and are rotatably connected with incomplete gears at one end of the barbs located inside the seat body, the seat body is slidably connected with a movable frame, a rack is fixedly provided on the outer wall of the movable frame, the rack is transmission-connected with the incomplete gear, the top of the seat body is rotatably connected with a screw rod through a bearing, the lower end of the screw rod threadably passes through the top of the movable frame, the upper end of the screw rod is sleeved and fixed with a hand wheel, a fixed plate is sleeved and fixed on the seat body above the barb, and a fixing nail is penetrated and arranged on the fixing plate.

[0005] Preferably, movable grooves are provided on both sides of the seat body, and the tail ends of the barbs are arranged in the movable grooves.

[0006] Preferably, the barbs on the side wall of the seat body are arranged in three groups at equal intervals from top to bottom.

[0007] Preferably, an inflation tube is fixedly connected to the airbag, the upper end of the inflation tube passes through the sealing plate and the fixed plate in sequence, and the upper end of the inflation tube is fixedly connected to an inflation head.

[0008] Preferably, a guide slot is provided inside the seat body, and the movable frame moves along the guide slot.

[0009] Preferably, the fixing plate is provided with fixing holes, and six fixing holes are provided on the fixing plate in a circular array, and the fixing nails pass through the fixing holes.

[0010] The utility model has the following beneficial effects:

[0011] The utility model discloses a sealing device for drilling construction. Air is inflated into an air bag through an air inflation tube so that the air bag is effectively abutted against the inner wall of the drilled hole, and drilled holes of different apertures can be sealed through the air bag. The upper and lower three groups of barbs are driven to expand outward so that the tips of the barbs are inserted into the inner wall of the drilled hole, and the barbs are used to hinder the seat body from moving upward. The fixing nails can be inserted through the fixing holes and into the ground to fix the fixing plate on the ground, thereby realizing double fixation of the sealing device, thereby effectively preventing the sealing device from being pushed upward due to excessive pressure in the drilled hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0013] Figure 1 It is a schematic diagram of the top view of a sealing device for drilling construction according to the utility model;

[0014] Figure 2 This is a schematic diagram of the bottom view of the structure of a sealing device for drilling construction according to the utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of a sealing device for drilling construction according to the utility model;

[0016] Figure 4 The utility model is a sealing device for drilling construction Figure 3 A magnified view of the structure in the middle.

[0017] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0018] 1. Seat body; 2. Barb; 21. Incomplete gear; 3. Sealing plate; 4. Air bag; 5. Fixed plate; 6. Fixed nail; 7. Movable frame; 71. Rack; 8. Screw; 81. Hand wheel; 9. Hand valve; 10. Inflatable tube; 11. Inner tube; 111. Branch tube; 12. Connecting shaft. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 As shown, the utility model provides a technical solution:

[0021] A sealing device for drilling construction, comprising a base body 1, a sealing plate 3 is fixedly connected to the bottom of the base body 1, an air bag 4 is fixedly sleeved on the outside of the sealing plate 3, an air bag 4 is fixedly connected to the air bag 4, and air is inflated into the air bag 4 through the air bag 10, so that the air bag 4 is effectively abutted against the inner wall of the drilling hole, and drilling holes of different sizes can be sealed through the air bag 4, an inner tube 11 is fixedly connected to the inside of the base body 1, the inner tube 11 can be connected to the external tube, and the lower end of the inner tube 11 passes through the sealing At the bottom of the hole plate 3, the upper end of the inner tube 11 is fixedly provided with a branch pipe 111, which extends to the outside of the seat body 1, and a hand valve 9 is fixedly sleeved on the branch pipe 111. When in use, the lower end of the seat body 1 is inserted into the drilled hole, and the bottom of the fixed plate 5 is made to fit with the ground, and then gas is filled into the airbag 4 through the inflation tube 10, so that the airbag 4 fits with the inner wall of the drilled hole, and the drilled hole is sealed by the airbag 4, and the sealing of the hole opening can be adjusted by manually opening and closing the hand valve 9.

[0022] The two sides of the seat body 1 above the sealing plate 3 are symmetrically connected to the barbs 2 through the connecting shaft 12, and the two sides of the seat body 1 are provided with movable grooves, and the tail ends of the barbs 2 are arranged in the movable grooves. The barbs 2 on the side wall of the seat body 1 are arranged in three groups at equal intervals from top to bottom. By driving the upper and lower three groups of barbs 2 to expand outward, the tips of the barbs 2 are inserted into the inner wall of the drilling hole, and the barbs 2 are used to prevent the seat body 1 from moving upward, so that the seat body 1 is fixed in the drilling hole. An incomplete gear 21 is fixedly arranged at one end of the barb 2 located inside the seat body 1. The interior of the body 1 is slidably connected with a movable frame 7, and a guide slot is provided inside the body 1. The movable frame 7 moves along the guide slot. A rack 71 is fixedly provided on the outer wall of the movable frame 7. The rack 71 is transmission-connected with the incomplete gear 21. The top of the body 1 is rotatably connected with a screw rod 8 through a bearing. The lower end thread of the screw rod 8 penetrates the top of the movable frame 7. The upper end of the screw rod 8 is sleeved and fixed with a hand wheel 81. A fixed plate 5 is sleeved and fixed on the body 1 above the barb 2. The upper end of the inflation tube 10 penetrates the sealing plate 3 and the fixed plate 5 in sequence. The upper end of the inflation tube 10 is fixedly connected with an inflation head, and a fixing nail 6 is provided on the fixing plate 5, and a fixing hole is provided on the fixing plate 5, and six fixing holes are provided on the fixing plate 5 in a circular array, and the fixing nail 6 passes through the fixing hole. By passing the fixing nail 6 through the fixing hole and inserting it into the ground, the fixing plate 5 is fixed to the ground, and the sealing device can be further fixed, effectively preventing the device from being lifted up due to excessive pressure in the drilling hole. After the airbag 4 is attached to the inner wall of the drilling hole, the hand wheel 81 can be manually turned clockwise to bring The movable screw 8 rotates, and the rotation of the screw 8 can drive the movable frame 7 to move downward and upward. At this time, the movable frame 7 moves upward, which can drive the rack 71 to move upward, and can drive the barb 2 to rotate outward around the connecting shaft 12 and open through the cooperation of the incomplete gear 21 and the rack 71, so that the tip of the barb 2 is inserted into the inner wall of the borehole, and finally the fixing nails 6 are inserted into the ground after passing through the fixing holes on the fixing plate 5 one by one, and the fixing plate 5 is fixed on the ground, so that the sealing device can be stably fixed at the drilled hole, thereby realizing the sealing of the drilled hole.

[0023] Working principle: when in use, the lower end of the seat body 1 is inserted into the drilled hole, and the bottom of the fixed plate 5 is made to fit with the ground, and then gas is filled into the airbag 4 through the inflation tube 10, so that the airbag 4 fits with the inner wall of the drilled hole, and the drilled hole is sealed by the airbag 4, and the sealing of the hole opening can be adjusted by manually opening and closing the hand valve 9. After the airbag 4 is fitted with the inner wall of the drilled hole, the hand wheel 81 can be manually turned clockwise to drive the screw 8 to rotate, and the rotation of the screw 8 can drive the movable frame 7 to move downward and upward. At this time, the movable frame 7 moves upward, which can drive the rack 71 to move upward, and can drive the barb 2 to rotate outward around the connecting shaft 12 and open through the cooperation of the incomplete gear 21 and the rack 71, so that the tip of the barb 2 is inserted into the inner wall of the drilled hole, and finally the fixing nails 6 are inserted into the ground after passing through the fixing holes on the fixing plate 5 one by one, and the fixing plate 5 is fixed on the ground, so that the sealing device can be stably fixed at the drilled hole to achieve the sealing of the drilled hole.

[0024] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0025] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions described in the aforementioned embodiments and any equivalent replacement of some of the technical features therein are within the protection scope of the present invention.

Claims

1. A sealing device for drilling construction, comprising a seat (1), characterized in that: The bottom of the seat body (1) is fixedly connected to a sealing plate (3), the outside of the sealing plate (3) is sleeved and fixed with an air bag (4), the inside of the seat body (1) is fixedly connected to an inner tube (11), the lower end of the inner tube (11) passes through the bottom of the sealing plate (3), the upper end of the inner tube (11) is fixedly provided with a branch tube (111), the branch tube (111) extends to the outside of the seat body (1), and a hand valve (9) is sleeved and fixed on the branch tube (111), and the two sides of the seat body (1) above the sealing plate (3) are symmetrically rotatably connected to barbs (2) through a connecting shaft (12), and the barbs (2) are located on the seat body (1) ) is fixedly provided with an incomplete gear (21) at one end inside, a movable frame (7) is slidably connected inside the seat body (1), a rack (71) is fixedly provided on the outer wall of the movable frame (7), the rack (71) is transmission-connected with the incomplete gear (21), a screw rod (8) is rotatably connected to the top of the seat body (1) through a bearing, the lower end of the screw rod (8) is threadedly passed through the top of the movable frame (7), a hand wheel (81) is sleeved and fixed on the upper end of the screw rod (8), a fixed plate (5) is sleeved and fixed on the seat body (1) above the barb (2), and a fixing nail (6) is penetrated and arranged on the fixing plate (5).

2. A sealing device for drilling construction according to claim 1, characterized in that: Movable grooves are provided on both sides of the seat body (1), and the tail ends of the barbs (2) are arranged in the movable grooves.

3. A sealing device for drilling construction according to claim 1, characterized in that: The barbs (2) on the side wall of the seat body (1) are arranged in three groups at equal intervals from top to bottom.

4. A sealing device for drilling construction according to claim 1, characterized in that: The air bag (4) is fixedly connected to an inflation tube (10), the upper end of the inflation tube (10) passes through the sealing plate (3) and the fixed plate (5) in sequence, and the upper end of the inflation tube (10) is fixedly connected to an inflation head.

5. A sealing device for drilling construction according to claim 1, characterized in that: A guide slot is provided inside the seat body (1), and the movable frame (7) moves along the guide slot.

6. A sealing device for drilling construction according to claim 1, characterized in that: The fixing plate (5) is provided with fixing holes, and six fixing holes are provided on the fixing plate (5) in a circular array, and the fixing nails (6) pass through the fixing holes.

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