Double-end water plugging device for observing working face overlying strata water flowing fractured zone

Abstract

The utility model discloses a double-end water plugging device for observing a working face overlying strata water flowing fissure zone, which comprises a first rod body, one end of the first rod body is fixedly connected with a second rod body, and a plugging air bag is fixedly sleeved outside the connecting end of the first rod body and the second rod body; the filling assembly is arranged at one end of the second rod body, an arc-shaped plate and a sponge strip are arranged in the filling assembly, and the gap can be filled; the supporting assembly is arranged outside the second rod body and can support the device; the filling assembly comprises a third rod body, the third rod body is fixedly connected to one end of the second rod body, and a plurality of sliding grooves are formed outside the third rod body; the third rod body is sleeved with the sliding sleeve in a sliding mode, and the inner side of the sliding sleeve is connected with the multiple sliding grooves in a sliding mode. According to the utility model, the filling assembly is arranged, so that a notch on the inner wall of the drill hole can be filled, and the problem that the plugging air bag cannot effectively plug due to the existence of the notch is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to double -end water stopper technical field, concretely is a kind of double -end water stopper for overburden strata water -conducting fractured zone observation of working face. BACKGROUND

[0002] Coal mine underground mining can cause overburden strata movement and damage, form water-conducting fractured zone, which not only can cause regional water resources loss, but also can cause underground water disaster, threaten mine safety production. In order to observe the development height of overburden water-conducting fractured zone and reduce the fracture flow capacity, the current main method is to use water injection to measure leakage amount. The method drills a hole in overburden strata by drilling machine, and injects water after blocking a section of the hole by double-end water stopper. Water seeps into the cracks in overburden strata, and when the water injection reaches saturation state, the crack size can be judged according to the actual leakage amount, and the development height of the crack is predicted.

[0003] The utility model with publication number CN217327307U provides a double-end water stopper for overburden water-conducting fractured zone observation of working face, which belongs to the technical field of double-end water stopper, and the protected right item is: "including main body assembly, first avoiding assembly and second avoiding assembly, two first avoiding assemblies are symmetrically arranged on the main body assembly, two second avoiding assemblies are symmetrically arranged on the main body assembly, the center line of the first avoiding assembly is perpendicular to the center line of the second avoiding assembly, the main body assembly is composed of water injection pipe connector, first blocking capsule, first connector, water injection probe pipe, second blocking capsule, blocking piece, second connector, water outlet, water injection pipe and inflation tube".

[0004] In the device, although the double-end water stoppage can be carried out on the drilling hole, once a gap appears on the inner wall of the drilling hole, the blocking capsule cannot effectively realize sealing and blocking, therefore, the utility model provides a double-end water stopper for overburden water-conducting fractured zone observation of working face. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a double-end water stopper for overburden water-conducting fractured zone observation of working face to solve the problems in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A double-end water stopper for overburden water-conducting fractured zone observation of working face, comprising:

[0008] A first rod body, one end of the first rod body is fixedly connected with a second rod body, and an outer fixed sleeve of the first rod body and the second rod body connecting end is provided with a blocking air bag;

[0009] A filling component is provided at one end of the second rod body, and is provided with an arc-shaped plate and a sponge strip therein, capable of filling the gap;

[0010] The supporting assembly is arranged outside the second rod body and can support the device.

[0011] Preferably, the filling component includes:

[0012] a third rod body, the third rod body being fixedly connected to one end of the second rod body, and the third rod body being provided with a plurality of sliding grooves;

[0013] A sliding sleeve, the sliding sleeve being arranged outside the third rod, the inner side of the sliding sleeve being slidably connected to the plurality of sliding grooves;

[0014] Hydraulic rods, wherein the three hydraulic rods are all fixedly connected to the outside of the third rod body, and the driving ends of the three hydraulic rods are all fixedly connected to the outside of the sliding sleeve;

[0015] a first rotating rod, wherein a plurality of the first rotating rods are rotatably connected to the outside of the sliding sleeve;

[0016] a second rotating rod, wherein the plurality of second rotating rods are rotatably connected to the outside of the third rod, and the top ends of the plurality of second rotating rods are rotatably connected to the outside of the first rotating rod;

[0017] Arc plates, wherein the plurality of arc plates are respectively fixedly connected to the top ends of the plurality of first rotating rods, and the plurality of arc plates are each provided with a plurality of discharge holes;

[0018] Sponge strips, wherein a plurality of sponge strips are respectively fixedly connected to the outer sides of the plurality of arc-shaped plates;

[0019] Connecting pipes, wherein a plurality of connecting pipes are respectively fixedly connected to the outside of a plurality of arc-shaped plates.

[0020] Preferably, the plurality of sliding grooves, the first rotating rod, the second rotating rod, the arc-shaped plate, the sponge strip and the discharge hole are all arranged around the central axis of the third rod body.

[0021] Preferably, the plurality of arc-shaped plates are all hollow, and the plurality of connecting pipes are connected to the interior of the arc-shaped plates.

[0022] Preferably, the top ends of the plurality of arc-shaped plates are all configured to be conical.

[0023] Preferably, the support assembly includes:

[0024] A support rod, the support rod being rotatably connected to the second rod body;

[0025] A rotating wheel rotatably connected to the top end of the support rod;

[0026] The telescopic rod is rotatably connected to the outside of the second rod body, and the telescopic end of the telescopic rod is rotatably connected to the outside of the support rod.

[0027] Preferably, the support components are arranged in three groups, and the three groups are all arranged around the central axis of the second rod body.

[0028] Preferably, a liquid infusion tube is provided outside the first rod body, the liquid infusion tube passes through the first rod body and the second rod body and is fixedly connected to a plurality of connecting tubes, and an air supply tube is provided outside the blocking airbag.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] By setting up a filling component and starting three hydraulic rods, the three hydraulic rods synchronously drive the sliding sleeve to move, which in turn drives multiple first rotating rods to rotate under the auxiliary support of the second rotating rod, which in turn drives multiple curved plates to extend inward and outward, and then can abut the inner wall of the drilled hole. Then, the filling glue is transported to the multiple curved plates through the infusion tube and multiple connecting tubes, and then squeezed out onto the sponge strip through multiple discharge holes. The device is pushed back and forth to fill the gap in the inner wall of the drilled hole. If there is still a gap, the device can be rotated as a whole, that is, the filling component is changed in angle, so that the gap can be fully filled. After the glue dries, the gap filling is completed. In summary, the gap in the inner wall of the drilled hole can be filled, avoiding the inability of the sealing airbag to effectively seal due to the existence of the gap. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0032] Figure 2 This is a schematic diagram of the structure of the plugging component in the utility model;

[0033] Figure 3 This utility model Figure 2 Side view of;

[0034] Figure 4 It is a schematic diagram of the support component structure in the utility model.

[0035] In the figure: 1. first rod body; 2. second rod body; 3. blocking airbag; 4. filling assembly; 5. support assembly; 41. third rod body; 411. slide groove; 42. sleeve; 43. hydraulic rod; 44. first rotating rod; 45. second rotating rod; 46. arc plate; 461. discharge hole; 47. sponge strip; 48. connecting pipe; 51. support rod; 52. rotating wheel; 53. telescopic rod; 6. infusion tube; 7. gas tube. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0037] like Figures 1-4 As shown, in this embodiment, a double-end water shutoff device for observing the water-conducting fracture zone of the overburden on the working face includes: a first rod body 1, a filling assembly 4 and a support assembly 5. One end of the first rod body 1 is fixedly connected to the second rod body 2, and a sealing airbag 3 is fixedly sleeved outside the connection end of the first rod body 1 and the second rod body 2; a liquid infusion tube 6 is provided outside the first rod body 1, and the liquid infusion tube 6 passes through the first rod body 1 and the second rod body 2 and is fixedly connected to a plurality of connecting tubes 48. An air supply pipe 7 is provided outside the sealing airbag 3, and gas is input into the sealing airbag 3 through the air supply pipe 7, so that the sealing airbag 3 expands and blocks the borehole.

[0038] The filling assembly 4 includes: a third rod body 41, a sliding sleeve 42, a hydraulic rod 43, a first rotating rod 44, a second rotating rod 45, an arc plate 46, a sponge strip 47 and a connecting tube 48. The third rod body 41 is fixedly connected to one end of the second rod body 2, and a plurality of sliding grooves 411 are provided on the outside of the third rod body 41; the sliding sleeve 42 is slidingly sleeved on the outside of the third rod body 41, and the inner side of the sliding sleeve 42 is slidingly connected to the plurality of sliding grooves 411; the three hydraulic rods 43 are all fixedly connected to the outside of the third rod body 41, and the driving ends of the three hydraulic rods 43 are all fixedly connected to the outside of the sliding sleeve 42; the plurality of first rotating rods 44 are rotatably connected to the sliding sleeve 42 outside; multiple second rotating rods 45 are rotatably connected to the outside of the third rod body 41, and the top ends of the multiple second rotating rods 45 are rotatably connected to the outside of the first rotating rod 44; multiple curved plates 46 are respectively fixedly connected to the top ends of the multiple first rotating rods 44, and multiple curved plates 46 are provided with multiple discharge holes 461; multiple sponge strips 47 are respectively fixedly connected to the outside of the multiple curved plates 46; multiple connecting pipes 48 are respectively fixedly connected to the outside of the multiple curved plates 46; after the gap is filled, the device is immediately pushed into the drill hole again, and gas is input into the sealing airbag 3 through the air supply pipe 7, so that the sealing airbag 3 expands and blocks the drill hole.

[0039] In this embodiment, the multiple curved plates 46 are all hollow, and the multiple connecting pipes 48 are connected to the interior of the curved plates 46. Glue can be stored in the curved plates 46 and discharged through the discharge holes 461; the top ends of the multiple curved plates 46 are all set to be conical. By setting them to be conical, the curved plates 46 have inclined surfaces, which facilitates the glue to flow from the discharge holes 461 to the sponge strips 47.

[0040] During specific implementation, the filling component 4 is started, and the three hydraulic rods 43 are started. The three hydraulic rods 43 synchronously drive the slide 42 to move, which in turn drives the multiple first rotating rods 44 to rotate under the auxiliary support of the second rotating rod 45, which in turn drives the multiple curved plates 46 to extend inward and outward, and then can abut the inner wall of the drill hole. The filling glue is then transported to the multiple curved plates 46 through the infusion tube 6 and multiple connecting tubes 48, and then squeezed onto the sponge strip 47 through multiple discharge holes 461. The device is pushed back and forth to fill the gap in the inner wall of the drill hole. If there is still a gap, the device can be rotated as a whole, that is, the filling component 4 is changed in angle, so that the gap can be fully filled. The gap filling is completed after the glue dries.

[0041] Furthermore, by blocking both ends of the filling component 4 and the blocking airbag 3, water leakage can be avoided. One end is for the filling component 4 to fill the gap, and the other end is for the blocking airbag 3 to block it. Example

[0042] On the basis of the first embodiment, in order to prevent the blocking airbag 3 and the filling component 4 from being damaged by friction with the inner wall of the drilled hole when they are not deployed, a supporting component 5 is provided.

[0043] like Figure 1 and Figure 4 As shown, in this embodiment, the support assembly 5 includes: a support rod 51, a rotating wheel 52 and a telescopic rod 53, the support rod 51 is rotatably connected to the outside of the second rod body 2; the rotating wheel 52 is rotatably connected to the top of the support rod 51; the telescopic rod 53 is rotatably connected to the outside of the second rod body 2, and the telescopic end of the telescopic rod 53 is rotatably connected to the outside of the support rod 51; the support assembly 5 is set into three groups, and the three groups are all arranged around the central axis of the second rod body 2. By setting the rotating wheel 52, it is easy to push and push out.

[0044] During specific implementation, the three groups of support rods 51 rotate accordingly with the abutment of the rotating wheel 52 under the telescopic action of the telescopic rod 53, thereby supporting the device and preventing the blocking airbag 3 and the filling component 4 from being damaged by friction against the inner wall of the drill hole when they are not deployed. It should be noted that a spring and a damping structure are provided in the telescopic rod 53. The telescopic rod 53 is a prior art and will not be described in detail.

[0045] Working principle: When a gap appears on the inner wall of the drill hole, first put the front end of the device into the drill hole. Under the extension and contraction of the telescopic rod 53, the three groups of support rods 51 rotate accordingly with the contact of the rotating wheel 52, which supports the device and prevents the blocking airbag 3 and the filling component 4 from being damaged by the friction of the inner wall of the drill hole when they are not deployed. Then start the filling component 4, start the three hydraulic rods 43, and the three hydraulic rods 43 synchronously drive the sliding sleeve 42 to move, which in turn drives the multiple first rotating rods 44 to rotate with the auxiliary support of the second rotating rod 45, which in turn drives the multiple curved plates 46 inside and outside. The filling glue is then transported to the multiple arc plates 46 through the infusion tube 6 and multiple connecting tubes 48, and then squeezed out onto the sponge strip 47 through multiple discharge holes 461. The device is pushed back and forth to fill the gap in the inner wall of the drill hole. If there is still a gap, the device can be rotated as a whole, that is, the filling component 4 is changed in angle, so that the gap can be fully filled. After the glue dries up, the gap is filled, and then the device is pushed into the drill hole again, and gas is input into the sealing airbag 3 through the air pipe 7, so that the sealing airbag 3 expands and blocks the drill hole.

[0046] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0047] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A double-ended water shutoff device for observing water-conducting fracture zones in overburden rock at a working face, characterized in that: include: A first rod body (1), one end of the first rod body (1) being fixedly connected to the second rod body (2), and a sealing airbag (3) being provided on an outer fixed sleeve of the connection end between the first rod body (1) and the second rod body (2); A filling component (4), the filling component (4) is arranged at one end of the second rod body (2), and an arc-shaped plate (46) and a sponge strip (47) are arranged in the filling component (4) to fill the gap; A support assembly (5) is provided outside the second rod body (2) and is capable of supporting the device.

2. The double-ended water shutoff device for observing the water-conducting fracture zone of overburden rock in a working face according to claim 1 is characterized in that: The filling component (4) includes: A third rod (41), the third rod (41) being fixedly connected to one end of the second rod (2), and a plurality of sliding grooves (411) being provided on the outside of the third rod (41); A sliding sleeve (42), wherein the sliding sleeve (42) is slidingly arranged outside the third rod body (41), and the inner side of the sliding sleeve (42) is slidingly connected to a plurality of sliding grooves (411); Hydraulic rods (43), wherein the three hydraulic rods (43) are all fixedly connected to the outside of the third rod body (41), and the driving ends of the three hydraulic rods (43) are all fixedly connected to the outside of the sliding sleeve (42); a first rotating rod (44), wherein a plurality of the first rotating rods (44) are all rotatably connected to the outside of the sliding sleeve (42); A second rotating rod (45), wherein a plurality of the second rotating rods (45) are all rotatably connected to the outside of the third rod body (41), and the top ends of the plurality of the second rotating rods (45) are all rotatably connected to the outside of the first rotating rod (44); Arc-shaped plates (46), wherein the plurality of arc-shaped plates (46) are respectively fixedly connected to the top ends of the plurality of first rotating rods (44), and the plurality of arc-shaped plates (46) are each provided with a plurality of discharge holes (461); Sponge strips (47), wherein a plurality of sponge strips (47) are respectively fixedly connected to the outer sides of a plurality of arc-shaped plates (46); Connecting pipes (48), wherein a plurality of connecting pipes (48) are respectively fixedly connected to the outside of a plurality of arc-shaped plates (46).

3. The double-ended water shutoff device for observing the water-conducting fracture zone of overburden rock in a working face according to claim 2 is characterized in that: The plurality of sliding grooves (411), the first rotating rod (44), the second rotating rod (45), the arc-shaped plate (46), the sponge strip (47) and the discharge hole (461) are all arranged around the central axis of the third rod body (41).

4. The double-ended water shutoff device for observing the water-conducting fracture zone of overburden rock in a working face according to claim 2 is characterized in that: The interiors of the plurality of arc-shaped plates (46) are all hollow, and the plurality of connecting pipes (48) are all connected to the interiors of the arc-shaped plates (46).

5. The double-ended water shutoff device for observing the water-conducting fracture zone of overburden rock in a working face according to claim 2 is characterized in that: The top ends of the plurality of arc-shaped plates (46) are all configured to be conical.

6. The double-ended water shutoff device for observing water-conducting fracture zones in overburden rocks of a working face according to claim 1 is characterized in that: The support assembly (5) comprises: A support rod (51), the support rod (51) being rotatably connected to the outside of the second rod body (2); A rotating wheel (52), the rotating wheel (52) is rotatably connected to the top end of the support rod (51); A telescopic rod (53) is rotatably connected to the outside of the second rod body (2), and a telescopic end of the telescopic rod (53) is rotatably connected to the outside of the support rod (51).

7. The double-ended water shutoff device for observing water-conducting fracture zones in overburden rocks of a working face according to claim 1 is characterized in that: The support components (5) are arranged in three groups, and the three groups are all arranged around the central axis of the second rod body (2).

8. The double-ended water shutoff device for observing water-conducting fracture zones in overburden rocks of a working face according to claim 1 is characterized in that: A liquid infusion tube (6) is provided outside the first rod body (1), and the liquid infusion tube (6) passes through the first rod body (1) and the second rod body (2) and is fixedly connected to a plurality of connecting tubes (48). An air infusion tube (7) is provided outside the blocking airbag (3).

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