Grouting water retention device for coal mining

Abstract

The grouting water retention device comprises a coal seam body, a limiting ring vertically penetrates through the top face of the coal seam body, a partition plate is fixedly connected to the inner wall of the limiting ring, a shaft ring vertically penetrates through the center of the top of the partition plate, and a shaft core is rotationally connected to the inner wall of the shaft ring. After the grouting pipe is directly pulled out of the large lantern ring, the conical lantern ring and the small lantern ring, the top plugging disc and the bottom plugging disc are rotated, the large lantern ring, the conical lantern ring and the small lantern ring can be staggered, at the moment, the small lantern ring can be shielded by the partition plate, meanwhile, the conical lantern ring can be shielded by the top plugging disc, and therefore the plugging effect is achieved; after the top plugging disc rotates by 180 degrees, the plugging block just moves to the position over the conical lantern ring, the plugging block can rapidly fall into the conical lantern ring along with pushing of the spring body, at the moment, the outer wall of the plugging block is tightly attached to the inner wall of the conical lantern ring, the water plugging effect is improved, and meanwhile the time of workers is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining, in particular to a grouting water conservation device used in coal mining. Background Art

[0002] The grouting water conservation device used in coal mining is an important equipment used to protect water resources and prevent water disasters during coal mining. It forms a waterproof barrier by grouting in the coal mine working face or tunnel, effectively isolating and preventing groundwater from entering the working area, thereby ensuring the safe mining of coal mines.

[0003] When the existing coal mines use grouting water conservation devices, most of them inject yellow mud into the goaf. During the entry and exit operations, the mud will overflow from the grouting port, which is inconvenient for subsequent construction operations. At the same time, the water conservation devices are all manually operated, with low efficiency and poor water blocking and sealing properties. Based on these problems, Chinese patent CN217632561U discloses a grouting water blocking device for the goaf of a steeply inclined coal seam. Through the provided sealing mechanism, when it is needed, a motor provided outside the sealing box is started, so that the motor drives the threaded rod to rotate inside the sealing box, and the threaded rod is threadedly connected to a slider provided outside, so that the slider slides inside the slide groove, drives the sealing cover to slide on the side of the inclined coal seam body, and seals the grouting port, so that the device is easy to seal after grouting the goaf, thereby improving the use and sealing efficiency of the device and ensuring the practicability of the device.

[0004] The device mainly uses sealing mechanism and water blocking mechanism to seal the grouting port of coal mining goaf. First, two sets of motors need to be controlled to move simultaneously, and then the electric push rod needs to be controlled to move the water blocking block. This process not only wastes the staff's time, but also there is a gap between the water blocking block and the fixed block. Water will flow through the gap to the electric push rod, which will affect the water blocking effect of the water blocking mechanism and reduce the service life of the electric push rod. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] To solve the above problems, the utility model adopts the following technical solutions.

[0007] The coal mine adopts a grouting water conservation device, which includes a coal seam body, wherein the top surface of the coal seam body vertically penetrates a limit ring, a partition is fixedly connected to the inner wall of the limit ring, an axial ring is vertically penetrated at the center of the top of the partition, the inner wall of the axial ring is rotatably connected to an axis core, a bottom sealing disk is fixedly connected to the bottom of the axis core, the outer wall of the bottom sealing disk is rotatably connected to the bottom end of the inner wall of the limit ring, a top sealing disk is fixedly connected to the top of the axis core, the outer wall of the top sealing disk is rotatably connected to the top of the inner wall of the limit ring, a large sleeve is vertically penetrated at one end of the top sealing disk, a conical sleeve is vertically penetrated at one end of the partition, a small sleeve is vertically penetrated at one end of the bottom sealing disk, a grouting pipe is sleeved on the inner walls of the large sleeve, the conical sleeve and the small sleeve, a first sleeve is vertically penetrated at the other end of the top sealing disk, a sealing block is slidably connected to the inner wall of the first sleeve, and a ball bearing is installed at the bottom of the sealing block.

[0008] As a further description of the above technical solution:

[0009] A gear ring is welded at the top outer edge of the top sealing disk, a side ring is welded at the top outer edge of the limiting ring, and a top ring is fixedly connected to the top end of the inner wall of the side ring.

[0010] As a further description of the above technical solution:

[0011] A motor vertically penetrates one end of the top of the top ring, and a gear body is rotatably connected to the movable end of the motor. The outer wall of the gear body meshes with the tooth groove of the gear ring, and the inner wall of the gear ring is rotatably connected to the bottom end of the outer wall of the top ring.

[0012] As a further description of the above technical solution:

[0013] A second sleeve is welded at the outer edge of the top of the first sleeve, first sleeves are vertically penetrated at both ends of the top of the first sleeve, and second sleeves are vertically penetrated at both ends of the top of the second sleeve.

[0014] As a further description of the above technical solution:

[0015] A first dustproof ventilation net vertically penetrates the center of the top of the first sleeve, and a second dustproof ventilation net vertically penetrates the center of the top of the second sleeve.

[0016] As a further description of the above technical solution:

[0017] Sliding rods are welded to both ends of the top of the blocking block, the outer walls of the sliding rods are slidably connected to the inner wall of the first sleeve, and a push plate is fixedly connected to the top of the sliding rod.

[0018] As a further description of the above technical solution:

[0019] The outer wall of the push plate is slidably connected to the inner wall of the second sleeve, both ends of the top of the push plate are welded with limit rods, the bottom ends of the outer walls of the limit rods are sleeved with spring bodies, and the top ends of the outer walls of the limit rods are slidably connected to the inner wall of the second sleeve.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] (1) After the grouting pipe is directly pulled out from the large sleeve, the conical sleeve and the small sleeve, the top sealing plate and the bottom sealing plate are rotated to make the large sleeve, the conical sleeve and the small sleeve misaligned. At this time, the small sleeve will be blocked by the partition, and the conical sleeve will be blocked by the top sealing plate, thereby achieving a blocking effect. After the top sealing plate is rotated 180 degrees, the blocking block moves just above the conical sleeve. With the push of the spring body, the blocking block will quickly fall into the conical sleeve. At this time, the outer wall of the blocking block is in close contact with the inner wall of the conical sleeve, which not only improves the water blocking effect, but also saves the time of the staff.

[0022] (2) By setting a connection structure between the gear body and the gear ring, the rotating gear body can drive the gear ring to rotate. At this time, the top sealing plate at the bottom of the gear ring and the bottom sealing plate at the bottom of the shaft core will also rotate together. The movable end of the motor, the gear body and the gear ring are all arranged in the annular cavity formed between the side ring and the top ring, which can provide good protection for the movable end of the motor, the gear body and the gear ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is one of the structural diagrams of the utility model;

[0024] Figure 2 This is the second structural diagram of the utility model;

[0025] Figure 3 It is a front view of the utility model;

[0026] Figure 4 It is a front cross-sectional view of the utility model;

[0027] Figure 5 It is a three-dimensional diagram of the connection structure between the top sealing disk and the gear ring in the utility model;

[0028] Figure 6 For this utility model Figure 4 A partial enlarged view of area A.

[0029] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0030] 1. Coal seam body; 2. Limiting ring; 3. Partition plate; 4. Shaft ring; 5. Shaft core; 6. Bottom plugging plate; 7. Top plugging plate; 8. Gear ring; 9. Side ring; 10. Top ring; 11. Motor; 12. Gear body; 13. Large sleeve; 14. Conical sleeve; 15. Small sleeve; 16. Grouting pipe; 17. First sleeve; 18. Second sleeve; 19. First sleeve; 20. Second sleeve; 21. First dustproof ventilation net; 22. Second dustproof ventilation net; 23. Block; 24. Ball; 25. Sliding rod; 26. Push plate; 27. Limiting rod; 28. Spring body. DETAILED DESCRIPTION

[0031] 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.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0034] Reference Figure 1-6 The utility model provides an embodiment of a grouting water conservation device for coal mine exploitation, comprising a coal seam body 1, the top surface of the coal seam body 1 vertically penetrates a limiting ring 2, the inner wall of the limiting ring 2 is fixedly connected with a partition 3, the center of the top of the partition 3 is vertically penetrated by an axial ring 4, the height of the axial ring 4 is the same as the height of the partition 3, the top surface of the axial ring 4 and the top surface of the partition 3 are both arranged on the same horizontal plane, the inner wall of the axial ring 4 is rotatably connected with an axis core 5, the bottom of the axis core 5 is fixedly connected with a bottom sealing disk 6, the outer wall of the bottom sealing disk 6 is rotatably connected to the bottom end of the inner wall of the limiting ring 2, the top of the axis core 5 is fixedly connected with a top sealing disk 7, the outer wall of the top sealing disk 7 is rotatably connected to the top of the inner wall of the limiting ring 2, the top sealing disk 7 can be connected to the bottom sealing disk 6 by the axis core 5, at this time, the top sealing disk 7 and the bottom sealing disk 6 can rotate together, and a gear ring 8 is welded at the outer edge of the top of the top sealing disk 7.

[0035] A side ring 9 is welded at the outer edge of the top of the limiting ring 2, and a top ring 10 is fixedly connected to the top of the inner wall of the side ring 9. By setting the side ring 9, the top ring 10 can be supported and fixed. There is a gap between the bottom surface of the top ring 10 and the top surface of the top sealing disk 7, which can allow the top sealing disk 7 to rotate smoothly. A motor 11 is vertically penetrated at one end of the top of the top ring 10, and the movable end of the motor 11 is rotatably connected to a gear body 12. The motor 11 can drive the gear body 12 to rotate, and the outer wall of the gear body 12 is meshed with the tooth groove of the gear ring 8. By setting the gear The connection structure between the wheel body 12 and the gear ring 8 enables the rotating gear body 12 to drive the gear ring 8 to rotate. At this time, the top sealing plate 7 at the bottom of the gear ring 8 and the bottom sealing plate 6 at the bottom of the shaft core 5 will also rotate together. The movable end of the motor 11, the gear body 12 and the gear ring 8 are all arranged in the annular cavity formed between the side ring 9 and the top ring 10, which can provide good protection for the movable end of the motor 11, the gear body 12 and the gear ring 8. The inner wall of the gear ring 8 is rotatably connected to the bottom end of the outer wall of the top ring 10.

[0036] A large collar 13 is vertically penetrated at one end of the top plugging plate 7, a conical collar 14 is vertically penetrated at one end of the partition plate 3, and a small collar 15 is vertically penetrated at one end of the bottom plugging plate 6. The inner walls of the large collar 13, the conical collar 14 and the small collar 15 are sleeved with a grouting pipe 16. By setting the grouting pipe 16, not only can the large collar 13, the conical collar 14 and the small collar 15 be fixed, but also it is conducive to the stable injection of mud. A first sleeve 17 is vertically penetrated at the other end of the top plugging plate 7, and a first sleeve 17 is welded at the top outer edge. Two sleeves 18, the bottom surfaces of the first sleeve 17 and the second sleeve 18 are both provided with openings, the first sleeve 17 is vertically penetrated by the first sleeve 19 at both ends of the top, the top surface of the first sleeve 19 and the top surface of the first sleeve 17 are both arranged on the same horizontal plane, the second sleeve 20 is vertically penetrated by the second ends of the top of the second sleeve 18, the top surface of the second sleeve 20 and the top surface of the second sleeve 18 are both arranged on the same horizontal plane, and the internal spaces of the first sleeve 19, the first sleeve 17, the second sleeve 20 and the second sleeve 18 are interconnected.

[0037] A first dustproof ventilation net 21 is vertically penetrated at the center of the top of the first sleeve 17, and a second dustproof ventilation net 22 is vertically penetrated at the center of the top of the second sleeve 18. A blocking block 23 is slidably connected to the inner wall of the first sleeve 17, and a ball 24 is installed at the bottom of the blocking block 23. The bottom surface of the blocking block 23 is provided with multiple groups of grooves, and balls 24 are installed in the grooves. The balls 24 extending out of the grooves can roll against the top surface of the partition 3, and sliding rods 25 are welded at both ends of the top of the blocking block 23. The outer walls of the sliding rods 25 are slidably connected to the inner wall of the first sleeve 19. A push plate 26 is fixedly connected to the top of the sliding rod 25. The outer wall of the push plate 26 is slidably connected to the inner wall of the second sleeve 18. Limiting rods 27 are welded at both ends of the top of the push plate 26. The bottom end of the outer wall of the limiting rod 27 is sleeved with a spring body 28. The top of the outer wall of the limiting rod 27 is connected to the second sleeve 18. The inner wall of the sleeve 20 is slidably connected, and the spring body 28 can squeeze the blocking block 23 on the sliding rod 25 at the bottom of the push plate 26 downward. After the grouting pipe 16 is directly pulled out from the large collar 13, the conical collar 14 and the small collar 15, the top blocking plate 7 and the bottom blocking plate 6 are rotated, so that the large collar 13, the conical collar 14 and the small collar 15 can be misaligned. At this time, the small collar 15 will be blocked by the partition 3, and the conical collar 14 will be blocked by the top blocking plate 7, thereby achieving a blocking effect. After the top blocking plate 7 rotates 180 degrees, the blocking block 23 moves just above the conical collar 14. With the push of the spring body 28, the blocking block 23 will quickly fall into the conical collar 14. At this time, the outer wall of the blocking block 23 is in close contact with the inner wall of the conical collar 14, which is beneficial to improve the water blocking effect.

[0038] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A grouting water conservation device for coal mining comprises a coal seam body (1), characterized in that: The top surface of the coal seam body (1) vertically penetrates a limit ring (2); the inner wall of the limit ring (2) is fixedly connected to a partition (3); a shaft ring (4) vertically penetrates the center of the top of the partition (3); the inner wall of the shaft ring (4) is rotatably connected to an axis core (5); the bottom of the axis core (5) is fixedly connected to a bottom blocking plate (6); the outer wall of the bottom blocking plate (6) is rotatably connected to the bottom end of the inner wall of the limit ring (2); the top of the axis core (5) is fixedly connected to a top blocking plate (7); the outer wall of the top blocking plate (7) is rotatably connected to the top end of the inner wall of the limit ring (2). A large sleeve (13) is vertically penetrated at one end of the top sealing plate (7), a conical sleeve (14) is vertically penetrated at one end of the partition plate (3), a small sleeve (15) is vertically penetrated at one end of the bottom sealing plate (6), a grouting pipe (16) is sleeved on the inner walls of the large sleeve (13), the conical sleeve (14) and the small sleeve (15), a first sleeve (17) is vertically penetrated at the other end of the top sealing plate (7), a sealing block (23) is slidably connected to the inner wall of the first sleeve (17), and a ball (24) is installed at the bottom of the sealing block (23).

2. The grouting water conservation device for coal mining according to claim 1 is characterized in that: A gear ring (8) is welded at the top outer edge of the top sealing disk (7), a side ring (9) is welded at the top outer edge of the limit ring (2), and a top ring (10) is fixedly connected to the top of the inner wall of the side ring (9).

3. The grouting water conservation device for coal mining according to claim 2 is characterized in that: A motor (11) vertically penetrates one end of the top of the top ring (10); a gear body (12) is rotatably connected to the movable end of the motor (11); an outer wall of the gear body (12) meshes with a tooth groove of the gear ring (8); and an inner wall of the gear ring (8) is rotatably connected to the bottom end of the outer wall of the top ring (10).

4. The grouting water conservation device for coal mining according to claim 1 is characterized in that: A second sleeve (18) is welded at the outer edge of the top of the first sleeve (17), first sleeves (19) vertically penetrate both ends of the top of the first sleeve (17), and second sleeves (20) vertically penetrate both ends of the top of the second sleeve (18).

5. The grouting water conservation device for coal mining according to claim 4 is characterized in that: A first dustproof ventilation net (21) vertically penetrates the center of the top of the first sleeve (17), and a second dustproof ventilation net (22) vertically penetrates the center of the top of the second sleeve (18).

6. The grouting water conservation device for coal mining according to claim 5, characterized in that: Sliding rods (25) are welded to both ends of the top of the blocking block (23), the outer walls of the sliding rods (25) are slidably connected to the inner wall of the first sleeve (19), and the top of the sliding rod (25) is fixedly connected to a push plate (26).

7. The grouting water conservation device for coal mining according to claim 6, characterized in that: The outer wall of the push plate (26) is slidably connected to the inner wall of the second sleeve (18), and limiting rods (27) are welded to both ends of the top of the push plate (26). The bottom end of the outer wall of the limiting rod (27) is sleeved with a spring body (28), and the top end of the outer wall of the limiting rod (27) is slidably connected to the inner wall of the second sleeve (20).

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