A rapid dredging device for a grouting pipe

Abstract

The application provides a quick dredging device for a grouting pipe, which comprises a guide assembly capable of rolling and adhering to the inner wall of the grouting pipe, the guide assembly comprises a roller, a spring, a support plate and a support rod, a plurality of first sliding grooves are circumferentially arranged on the periphery of a shell, one support plate is slidably connected to the periphery of each first sliding groove, one support rod is fixedly connected between every two adjacent support plates, one roller is rollingly sleeved on the periphery of each support rod, each roller can roll and adhere to the inner wall of the grouting pipe, a plurality of springs are arranged between each support plate and the bottom of the first sliding groove, and the two ends of the spring are connected to the support plate and the bottom of the first sliding groove, respectively. The quick dredging device for the grouting pipe fills the gap between the shell and the inner wall of the grouting pipe by arranging multiple guide assemblies on the periphery of the shell and relying on the spring elasticity to push the support plate, so that the roller can adaptively adhere to the inner wall of the grouting pipe and prevent deviation during the dredging process.

Description

Technical Field

[0001] This invention belongs to the field of coal mine grouting, and in particular relates to a rapid unblocking device for grouting pipes. Background Technology

[0002] In coal mine underground roadway support and surrounding rock reinforcement operations, it is often necessary to inject grout into the coal and rock mass through grouting pipes to improve the integrity and stability of the surrounding rock. After grouting, the grout is prone to solidify and harden inside the grouting pipe, forming a blockage that affects subsequent grouting construction. Therefore, it is necessary to unclog the grouting pipe regularly. Existing unclogging devices are mostly rigid straight rods or simple drill bit structures. After being inserted into the grouting pipe, they lack a central guiding structure, which can easily cause radial deviation during drilling and unclogging. This deviation can cause the drill bit to scrape the inner wall of the grouting pipe, resulting in low unclogging efficiency. Summary of the Invention

[0003] In view of this, the present invention aims to provide a rapid unblocking device for grouting pipes to solve the problem that the unblocking device is prone to displacement inside the grouting pipe, which will scrape the pipe wall and result in low unblocking efficiency.

[0004] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0005] A rapid unblocking device for grouting pipes includes a housing, a guide assembly, and an unblocking assembly. Multiple guide assemblies are circumferentially arranged around the housing, capable of rolling and conforming to the inner wall of the grouting pipe. An unblocking assembly is located in the center of the housing, used to unblock clogged grouting pipes. Each guide assembly includes rollers, springs, support plates, and support rods. Multiple mounting positions are circumferentially arranged around the housing; each mounting position includes two parallel first grooves. A support plate is slidably connected within each first groove. A support rod is fixedly connected between every two adjacent support plates. A roller is rolled around the periphery of each support rod, and the periphery of each roller can roll and conform to the inner wall of the grouting pipe. Multiple springs are evenly distributed between each support plate and the bottom of each first groove; one end of each spring is fixedly connected to one end of a support plate, and the other end of each spring is fixedly connected to the bottom of the first groove.

[0006] Furthermore, the quick unblocking device for the grouting pipe also includes an adjustment component. The adjustment component is rotatably mounted on the upper end of the housing, and the adjustment component can simultaneously adjust the extension amount of the roller within the housing.

[0007] Furthermore, the adjustment assembly includes a U-shaped frame and a baffle. A second slide groove is provided above each first slide groove, and multiple second slide grooves are provided on the housing. One end of the U-shaped frame is slidably connected in each second slide groove. A baffle is vertically installed at the upper end of each support plate. Each baffle passes through a second slide groove and abuts against the outside of the U-shaped frame.

[0008] Furthermore, the adjustment assembly also includes a slide rod, a turntable, and a rotating ring. A slide rod is installed in the middle of each U-shaped frame, and a turntable is coaxially and rotatably installed on the upper end of the housing. The turntable has an arc-shaped groove in the circumferential direction, and a slide rod is slidably connected in each arc-shaped groove. A rotating ring is fixedly installed on the upper end of the turntable.

[0009] Furthermore, the outer periphery of the rotating ring is provided with anti-slip texture.

[0010] Furthermore, the unblocking assembly includes a sleeve, a rotary table, a drill bit, and a shaft. The rotary table is rotatably mounted inside the housing, and the drill bit is fixedly installed at the lower end of the rotary table. One end of the shaft is fixedly connected to the upper end of the rotary table, and the other end of the shaft is connected to an external torque output device. The shaft is rotatably connected to the sleeve, and one end of the sleeve is fixedly mounted on the housing. A rotating ring and the inner ring of the turntable are rotatably connected to the sleeve. The external torque output device can drive the shaft, rotary table, and drill bit to rotate. The other end of the sleeve is fixedly connected to the movable end of an external feed device. The sleeve, housing, rotating ring, and turntable do not rotate.

[0011] Furthermore, a dust cover is installed on the upper end of the housing, which covers the outer perimeter of the rotating ring and the turntable.

[0012] Compared with the prior art, the rapid unblocking device for grouting pipes described in this invention has the following beneficial effects:

[0013] (1) The quick unblocking device for grouting pipe described in this invention provides multiple sets of guide components on the outer periphery of the shell and relies on the spring elastic push support plate to make the roller adaptively fit the inner wall of the grouting pipe, fill the gap between the shell and the inner wall of the grouting pipe, and prevent deviation during the unblocking process.

[0014] (2) The quick unblocking device for grouting pipe described in this invention allows the roller to slide inside the housing when the grouting pipe changes diameter, and the elongation can be adaptively adjusted according to the pipe diameter under the action of the spring to adapt to grouting pipes of different diameters.

[0015] (3) The quick unblocking device for grouting pipe described in this invention is equipped with an adjustment component, which can simultaneously adjust the extension length of all rollers and retract the rollers into the housing to facilitate the insertion of the device into the grouting pipe. After insertion, the limit length of the roller extension is adjusted according to the maximum diameter of the grouting pipe to prevent the rollers from suddenly popping out when the device is removed after the grouting pipe is unblocked. Attached Figure Description

[0016] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0017] Figure 1This is an overall schematic diagram of a rapid unblocking device for a grouting pipe according to an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the first and second slide grooves according to an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the guide component described in an embodiment of the present invention;

[0020] Figure 4 for Figure 3 A magnified view of part A;

[0021] Figure 5 This is a schematic diagram of the roller described in an embodiment of the present invention;

[0022] Figure 6 This is a schematic diagram of the adjustment component described in an embodiment of the present invention;

[0023] Figure 7 This is a cross-sectional schematic diagram of the unblocking component described in an embodiment of the present invention.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1-Housing; 11-First slide groove; 12-Second slide groove; 13-Dust cover; 2-Guide assembly; 21-Roller; 22-Spring; 23-Support plate; 24-Support rod; 3-Dredging assembly; 31-Sleeve; 32-Rotating table; 33-Drill bit; 34-Shaft; 4-Adjusting assembly; 41-U-shaped frame; 42-Baffle; 43-Slide rod; 44-Turntable; 441-Arc groove; 45-Rotating ring; 451-Anti-slip texture. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0027] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0028] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] like Figures 1-7 As shown, a rapid unblocking device for a grouting pipe includes a housing 1, guide components 2, and an unblocking component 3. Multiple guide components 2 are arranged circumferentially around the periphery of the housing 1, and the guide components 2 can roll and conform to the inner wall of the grouting pipe. The unblocking component 3 is located in the middle of the housing 1, and the unblocking component 3 is used to unblock the clogged grouting pipe. Figures 2-5As shown, the guide assembly 2 includes rollers 21, springs 22, support plates 23, and support rods 24. Multiple mounting positions are provided circumferentially around the housing 1. Each mounting position includes two parallel first grooves 11. A support plate 23 is slidably connected within each first groove 11. A support rod 24 is fixedly connected between every two adjacent support plates 23. A roller 21 is rolled around the periphery of each support rod 24. The periphery of each roller 21 can roll and conform to the inner wall of the grouting pipe. Multiple springs 22 are evenly distributed between the bottom of each support plate 23 and the first groove 11. One end of each spring 22 is fixedly connected to one end of the support plate 23, and the other end is fixedly connected to the bottom of the first groove 11. In use, the housing 1 is placed inside the blocked grouting pipe, and the springs 22 on the outside of the housing 1 apply pressure to the support plate 23. The elastic force causes the support plate 23 to slide outward along the first sliding groove 11, driving the support rod 24 and roller 21 to move outward, so that the roller 21 rolls tightly against the inner wall of the grouting pipe, achieving the centered positioning of the housing 1. Then, the unblocking component 3 is used to drill and unblock the blockage in the pipe. During the operation, the roller 21 will also roll as the device moves down, ensuring smooth movement of the device. By setting multiple sets of guide components 2 on the outer periphery of the housing 1, the support plate 23 is pushed elastically by the spring 22, so that the roller 21 adapts to the inner wall of the grouting pipe, filling the gap between the housing 1 and the inner wall of the grouting pipe, preventing displacement during the unblocking process. When the diameter of the grouting pipe changes, the roller 21 can slide inside the housing 1, and under the action of the spring 22, it can adaptively adjust the elongation according to the diameter of the grouting pipe to adapt to grouting pipes of different diameters.

[0031] like Figure 3 , Figure 6 and Figure 7As shown, a rapid unblocking device for grouting pipes further includes an adjusting component 4. The adjusting component 4 is rotatably mounted on the upper end of the housing 1. The adjusting component 4 can simultaneously adjust the extension amount of the roller 21 within the housing 1. The adjusting component 4 includes a U-shaped frame 41 and a baffle 42. A second slide groove 12 is correspondingly provided above each first slide groove 11. Multiple second slide grooves 12 are provided on the housing 1. One end of the U-shaped frame 41 is slidably connected within each second slide groove 12. A baffle 42 is vertically mounted on the upper end of each support plate 23. After passing through a second slide groove 12, 42 abuts against the outside of the U-shaped frame 41. The adjusting assembly 4 also includes a slide rod 43, a turntable 44, and a rotating ring 45. A slide rod 43 is installed in the middle of each U-shaped frame 41. The turntable 44 is coaxially rotatably mounted on the upper end of the housing 1. The turntable 44 has an arc-shaped groove 441 on its circumference. A slide rod 43 is slidably connected to the outer periphery of each arc-shaped groove 441. The rotating ring 45 is fixedly installed on the upper end of the turntable 44. Rotating the rotating ring 45 drives the turntable 44 to rotate synchronously. When the turntable 44 rotates, it drives the slide rod 43 through the arc-shaped groove 441. Rod 43 moves radially, and slide rod 43 drives U-shaped frame 41 to slide synchronously along the second slide groove 12. During the movement of U-shaped frame 41, it abuts against baffle 42. Baffle 42 drives support plate 23 to slide inside the first slide groove 11, compressing all springs 22 at the same time, so that housing 1 can enter the grouting pipe. When housing 1 is placed in the grouting pipe opening, the rotating ring 45 is rotated in the opposite direction according to the maximum diameter of the grouting pipe to adjust the position of U-shaped frame 41 and thus adjust the limit length of the extension of roller 21. 1. When the support plate 23 below the baffle 42 is not obstructed, the spring 22 will be released, pushing the support plate 23 to move in the first slide groove 11. The roller 21 fits against the inner wall of the grouting pipe. An adjustment component 4 is set up to simultaneously adjust the extension length of all rollers 21. The rollers 21 are retracted into the housing 1, making it convenient to insert the device into the grouting pipe. After insertion, the limit length of the extension of the roller 21 is adjusted according to the maximum diameter of the grouting pipe to prevent the rollers 21 from suddenly popping out when the device is taken out after the grouting pipe is cleared.

[0032] like Figure 6 As shown, the outer periphery of the rotating ring 45 is provided with anti-slip texture 451. The anti-slip texture 451 can increase the contact friction between the hand and the rotating ring 45, making it less likely to slip during rotation and adjustment, and facilitating the operation of the rotating ring 45 to adjust the extension of the roller 21.

[0033] like Figure 1 and Figure 7As shown, the unblocking component 3 includes a sleeve 31, a rotary table 32, a drill bit 33, and a shaft 34. The rotary table 32 is rotatably mounted inside the housing 1. The drill bit 33 is fixedly mounted on the lower end of the rotary table 32. One end of the shaft 34 is fixedly connected to the upper end of the rotary table 32. The other end of the shaft 34 is connected to an external torque output device. The shaft 34 is rotatably connected to the sleeve 31, which is fixedly mounted on the housing 1. A rotating ring 45 and the inner ring of a turntable 44 are rotatably connected to the sleeve 31. The external torque output device can drive the shaft 34, the rotary table 32, and the drill bit 33 to rotate. The torque output device is a conventional electric motor, model KMDA-8. The sleeve 31 is fixedly mounted on the movable end of an external feed device. In this embodiment, the feed device is a conventional electric telescopic rod, model Lesterno DC12V. The 5MM / S-2000N drill bit can rotate to transmit torque during operation, while the sleeve 31, housing 1, rotating ring 45, and turntable 44 do not rotate. The external torque output device drives the shaft 34 to rotate, which in turn drives the rotary table 32 and drill bit 33 to rotate synchronously. The sleeve 31 is fixed on the housing 1 and remains stationary. The rotating ring 45 and turntable 44 do not rotate along with the sleeve 31. At the same time, the external feed device drives the sleeve 31 and housing 1 to be axially transported in the grouting pipe, so that the drill bit 33 can rotate and drill the blockage in the grouting pipe to complete the unblocking operation.

[0034] like Figure 1 As shown, a dust cover 13 is installed on the upper end of the housing 1. The dust cover 13 covers the outer periphery of the rotating ring 45 and the turntable 44. After adjustment, the dust cover 13 is installed to isolate the dust generated when unblocking the grouting pipe and extend its service life.

[0035] The working process of a rapid unblocking device for grouting pipes:

[0036] First, rotate the rotating ring 45 to drive the turntable 44 to rotate. The arc groove 441 pushes the slide rod 43 and the U-shaped frame 41 to move, press against the baffle 42 to compress the spring 22, and retract the roller 21 into the housing 1, so that the device can be sent into the grouting pipe.

[0037] After reaching the desired position, rotate the rotating ring 45 in the opposite direction to release the spring 22 and set the roller 21 to extend to its maximum length. Under the action of the spring 22, the roller 21 adapts to fit the inner wall of the grouting pipe, allowing the housing 1 to be positioned in the center.

[0038] Then, the external torque output device is activated to drive the shaft 34, the rotary table 32 and the drill bit 33 to rotate. At the same time, the external feed device pushes the sleeve 31 and the housing 1 to move axially. The drill bit 33 rotates and drills the blockage in the pipe. During the operation, the roller 21 rolls with the device and remains centered and stable. After the blockage is cleared, the rotating ring 45 is rotated again to retract the roller 21, and the device can be taken out smoothly.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rapid unblocking device for grouting pipes, characterized in that: The system includes a housing (1), a guide assembly (2), and a dredging assembly (3). Multiple guide assemblies (2) are arranged circumferentially around the housing (1). The guide assemblies (2) can roll and conform to the inner wall of the grouting pipe. A dredging assembly (3) is arranged in the middle of the housing (1) to dredge the blocked grouting pipe. The guide assembly (2) includes a roller (21), a spring (22), a support plate (23), and a support rod (24). Multiple mounting positions are arranged circumferentially around the housing (1). Each mounting position includes two parallel first grooves (11). A support plate (23) is slidably connected to the periphery of a first groove (11). A support rod (24) is fixedly connected between every two adjacent support plates (23). A roller (21) is rolled around the periphery of each support rod (24). The periphery of each roller (21) can roll and fit against the inner wall of the grouting pipe. Multiple springs (22) are evenly distributed between the bottom of each support plate (23) and the first groove (11). One end of the spring (22) is fixedly connected to one end of the support plate (23), and the other end of the spring (22) is fixedly connected to the bottom of the first groove (11).

2. The rapid unblocking device for a grouting pipe according to claim 1, characterized in that: It also includes an adjustment component (4), which is rotatably mounted on the upper end of the housing (1). The adjustment component (4) can simultaneously adjust the amount of the roller (21) extending out of the housing (1).

3. The rapid unblocking device for a grouting pipe according to claim 2, characterized in that: The adjustment component (4) includes a U-shaped frame (41) and a baffle (42). A second slide (12) is provided above each first slide (11). Multiple second slides (12) are provided on the housing (1). One end of the U-shaped frame (41) is slidably connected in each second slide (12). A baffle (42) is vertically installed on the upper end of each support plate (23). Each baffle (42) passes through a second slide (12) and abuts against the outside of the U-shaped frame (41).

4. The rapid unblocking device for a grouting pipe according to claim 3, characterized in that: The adjustment assembly (4) also includes a slide rod (43), a turntable (44) and a rotating ring (45). A slide rod (43) is installed in the middle of each U-shaped frame (41). The turntable (44) is coaxially mounted on the upper end of the housing (1). The turntable (44) has an arc groove (441) in the circumferential direction. A slide rod (43) is slidably connected in the arc groove (441). The rotating ring (45) is fixedly installed on the upper end of the turntable (44).

5. The rapid unblocking device for a grouting pipe according to claim 4, characterized in that: The outer edge of the swivel (45) is provided with anti-slip texture (451).

6. The rapid unblocking device for a grouting pipe according to claim 4, characterized in that: The unblocking component (3) includes a sleeve (31), a rotary table (32), a drill bit (33), and a shaft (34). The rotary table (32) is rotatably installed inside the housing (1). The drill bit (33) is fixedly installed at the lower end of the rotary table (32). One end of the shaft (34) is fixedly connected to the upper end of the rotary table (32). The other end of the shaft (34) is connected to an external torque output device. The shaft (34) is rotatably connected to the sleeve (31). One end of the sleeve (31) is fixedly installed on the housing (1). The outer side of the sleeve (31) is rotatably connected to the inner ring of the rotating disk (44). The external torque output device can drive the shaft (34), the rotary table (32), and the drill bit (33) to rotate. The other end of the sleeve (31) is fixedly connected to the movable end of the external feed device. The sleeve (31), the housing (1), the rotating ring (45), and the rotating disk (44) do not rotate.

7. The rapid unblocking device for a grouting pipe according to claim 6, characterized in that: A dust cover (13) is installed on the upper end of the housing (1), and the dust cover (13) covers the outer periphery of the rotating ring (45) and the turntable (44).

Images