Grouting auxiliary mechanism and grouting method

Abstract

The present invention discloses a grouting auxiliary mechanism in the field of grouting technology, comprising: a pipe fitting inserted into a template and a funnel installed on the outer end of the pipe fitting, and a mounting member arranged on the funnel; a connecting rod extending into the pipe fitting is rotatably provided on the mounting member, a pressing kit is provided on a sliding sleeve below the connecting rod, an impeller located in the pipe fitting is provided on the connecting rod, and a linkage mechanism connected to the pressing kit is provided. Slurry enters the pipe fitting and contacts the impeller, driving the impeller to rotate and rotate the connecting rod, and the pressing kit is moved up and down reciprocatingly through the linkage mechanism. In the present invention, when the slurry enters the interior of the pipe fitting, the slurry will contact the impeller, driving the impeller to rotate and rotate the connecting rod, and the pressing kit is moved up and down reciprocatingly through the linkage mechanism, thereby clearing the interior of the pipe fitting, so that the pipe fitting has a self-clearing ability, preventing the slurry from being blocked inside the pipe fitting, and ensuring the efficiency of grouting.

Description

Technical Field

[0001] The present invention relates to the technical field of grouting, in particular to a grouting auxiliary mechanism and a grouting method. Background Art

[0002] In the construction of building projects, grouting of well chambers and grouting of certain reserved openings are often encountered. In order to avoid grouting from a grouting hole left at the top of the opening, which would result in a crack at the top of the opening, pipe fittings are used; the pipe fittings are inserted into the formwork, grouting is performed through the pipe fittings, and the problem is solved by vibrating and beating the formwork with steel bars. For example, the method disclosed in the public document of a grouting improvement method with publication number CN110878633A specifically includes step S1: after the formwork 1 is constructed during the formwork process, a steel pipe 2 with a diameter of 48 mm is pre-buried between the formwork 1. When the steel pipe 2 does not need to be removed, a smooth steel pipe 2 is directly pre-buried.

[0003] However, there are certain defects in this public document. For example, when the slurry passes through the pipe fittings, the slurry falls automatically, and due to the limitations of the pipe fittings (the slurry needs to pass through the pipe fittings before entering the template), when the slurry is injected too quickly, the slurry is likely to accumulate in the pipe fittings, resulting in the possibility of clogging the pipe fittings. In addition, the lack of corresponding unblocking mechanisms on the pipe fittings will affect the efficiency of grouting. Summary of the Invention

[0004] The purpose of the present invention is to provide a grouting auxiliary mechanism and a grouting method to solve the problem raised in the above background technology that when the slurry is injected too fast, the slurry is easily accumulated in the pipe fittings, resulting in the possibility of clogging the pipe fittings, and the lack of corresponding unblocking mechanisms on the pipe fittings affects the efficiency of grouting.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a grouting auxiliary mechanism, comprising: a pipe inserted into the interior of a template and a funnel mounted on the outer end of the pipe, the grouting auxiliary mechanism further comprising: a mounting member disposed on the funnel;

[0006] A connecting rod extending into the pipe is rotatably provided on the mounting piece, a pressing kit is provided on the sliding sleeve below the connecting rod, an impeller in the pipe is provided on the connecting rod, and a linkage mechanism connected to the connecting rod is provided on the pressing kit. When the slurry enters the pipe and contacts the impeller, the impeller is driven to rotate and the connecting rod is rotated, and the pressing kit is moved back and forth up and down through the linkage mechanism.

[0007] Preferably, the linkage mechanism includes a guide block arranged on the inner wall of the pressing kit, a pressure block arranged on the outer wall of the connecting rod, and an elastic member arranged between the pressing kit and the connecting rod; the height of the guide block gradually increases along the rotation direction of the connecting rod, and the pressure block is arranged above the guide block.

[0008] Preferably, the elastic member is rotationally connected to the connecting rod, the inner wall of the tube is provided with a guide groove extending along the moving direction of the pressing kit, and the pressing kit is provided with a guide member inserted in the guide groove.

[0009] Preferably, the connecting rod includes a mounting rod and a rotating rod rotatably mounted below the mounting rod.

[0010] Preferably, a working box is provided on the connecting rod, a pressure plate for discharging air from the inner cavity of the working box is slidably provided in the working box, a rack connected to the pressure plate is slidably provided on the working box, a gear meshing with the rack is rotatably provided on the working box, a reel is provided on the shaft of the gear, a torsion spring is provided between the reel and the working box, a pull rope connected to the pressing kit is wound around the reel, and an air inlet and an air outlet are provided on the working box on the moving path of the pressure plate;

[0011] An air outlet is provided on the outside of the pressing sleeve, and a channel is provided in the connecting rod to connect the air outlet with the air port.

[0012] Preferably, the mounting rod is provided with a limiting piece for pressing the pull rope.

[0013] Preferably, the pressing kit is provided with a shielding cover for covering the air outlet, the opening of the shielding cover faces downward, and the shielding cover is hinged with a baffle for shielding the opening and an elastic element connected to the baffle.

[0014] Preferably, the funnel is detachably connected to the pipe.

[0015] Preferably, a grouting method, using a grouting auxiliary mechanism, specifically comprises the following steps:

[0016] S1: After inserting one end of the pipe into the center of the template, pour the slurry from the funnel into the pipe and contact the impeller, driving the impeller to rotate and drive the connecting rod to rotate. Through the action of the linkage mechanism, the pressing kit moves up and down, pushing the slurry inside the pipe. The slurry passes through the pipe and falls into the template;

[0017] S2: After filling the inside of the formwork, remove the funnel, connecting rod and pressing kit from the pipe fitting, insert steel bars from the top of the pipe fitting for vibration, and knock on the bottom of the formwork until the top of the formwork opening is fully filled.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: in the present invention, by arranging components such as a connecting rod, an impeller and a pressing kit inside the pipe fitting, when the slurry enters the interior of the pipe fitting, the slurry will contact the impeller, driving the impeller to rotate and rotate with the connecting rod, and through the linkage mechanism, the pressing kit is moved back and forth up and down to clear the inside of the pipe fitting, so that the pipe fitting has a self-clearing ability, preventing the slurry from being blocked inside the pipe fitting, and ensuring the efficiency of grouting. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the connection structure between the pipe fitting and the funnel of the present invention;

[0021] Figure 3 This is an enlarged schematic diagram of the structure at position C of the present invention;

[0022] Figure 4 This is an enlarged schematic diagram of the structure at B of the present invention;

[0023] Figure 5 This is a schematic diagram of the connection structure between the working box and the pressing plate of the present invention;

[0024] Figure 6 This is an enlarged schematic diagram of the structure at A of the present invention;

[0025] Figure 7 It is a schematic diagram of the connection structure between the shielding cover and the baffle of the present invention.

[0026] In the figure: 1. Template; 2. Pipe fitting; 3. Funnel; 4. Connecting rod; 41. Mounting rod; 42. Turning rod; 5. Pressing kit; 6. Mounting part; 7. Pull rope; 8. Working box; 9. Reeling rod; 10. Impeller; 11. Limiting part; 12. Gear; 13. Pressing plate; 14. Rack; 15. Air inlet; 16. Air outlet; 17. Guide part; 18. Elastic part; 19. Guide block; 20. Pressing block; 21. Air outlet; 22. Shielding cover; 23. Baffle. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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.

[0028] Example 1

[0029] See also Figure 1A grouting auxiliary mechanism includes: a pipe fitting 2, one end of the pipe fitting 2 is inserted into the interior of the template 1, and a funnel 3 is installed on the other end of the pipe fitting 2.

[0030] In this embodiment, as a further optimized solution, please refer to Figure 1 and Figure 2 The pipe fitting 2 and the funnel 3 are detachably connected, such as by threaded connection, bolt fixation or clamping, so that the funnel 3 and the pipe fitting 2 can be disassembled to remove the components on the funnel 3 and process the slurry on the components.

[0031] See also Figure 2 、 Figure 3 and Figure 4 , a mounting part 6 is installed on the funnel 3 (the mounting part 6 is fixed to the funnel 3 by bolts, so that the mounting part 6 and the funnel 3 can be detached); a connecting rod 4 is rotatably provided on the mounting part 6, the installation direction of the connecting rod 4 is parallel to the pipe fitting 2, and the bottom end of the connecting rod 4 extends to the inside of the pipe fitting 2; a pressing kit 5 is provided on the sliding sleeve below the connecting rod 4 (the pressing kit 5 can move up and down), and an impeller 10 is provided on the connecting rod 4 (the impeller 10 can be removed from the connecting rod 4), and the impeller 10 is inside the pipe fitting 2; a linkage mechanism is provided on the pressing kit 5;

[0032] Among them, see Figure 6 The linkage mechanism includes a guide block 19 arranged on the inner wall of the pressing kit 5, a pressure block 20 arranged on the outer wall of the connecting rod 4, and an elastic member 18 arranged between the pressing kit 5 and the connecting rod 4; the height of the guide block 19 gradually increases along the rotation direction of the connecting rod 4, and the bottom of the pressure block 20 is in contact with the top of the guide block 19.

[0033] See also Figure 6 The elastic member 18 is rotatably connected to the connecting rod 4, and the elastic member 18 is detachably connected to the pressing kit 5 (the pressing kit 5 is composed of two halves, which are fixed by bolts and screws, so that the pressing kit 5 can be split into two parts for removing the pressing kit 5 from the connecting rod 4), so that when the connecting rod 4 rotates, the elastic member 18 is not affected; a guide groove is provided on the inner wall of the pipe fitting 2, and the guide groove extends along the moving direction of the pressing kit 5 (that is, the guide groove is longitudinal and is open above the guide groove, and the top of the guide groove is flush with the top of the pipe fitting 2. In the process of upward movement of the connecting rod 4 and the pressing kit 5, the guide member 17 moves upward in the guide groove and will move out from the inside of the pipe fitting 2). A guide member 17 is provided on the pressing kit 5, and the end of the guide member 17 away from the pressing kit 5 is inserted in the guide groove, and slides inside the guide groove through the guide member 17, so that when the connecting rod 4 rotates, the pressing kit 5 will only move up and down.

[0034] The auxiliary mechanism works in the following way: the grouting slurry is poured into the funnel 3 and flows into the interior of the pipe 2. The slurry will come into contact with the impeller 10. In the process of the slurry passing through the impeller 10, the impeller 10 will be driven to rotate; the rotation of the impeller 10 will drive the connecting rod 4 to rotate together, causing the pressing block 20 to rotate (because the height of the guide block 19 will gradually increase along the direction of rotation of the connecting rod 4, the connecting rod 4 will rotate with the pressing block 20, and the height of the pressing block 20 will not change, so the guide block 19 will be pushed downward), pushing the pressing kit 5 downward (one or more guide blocks 19 are distributed on the inner wall of the pressing kit 5, and the guide blocks 19 will not form a complete ring); the pressing block 20 continues to The rotation will cause the guide block 19 to be out of contact, so that the extrusion force on the guide block 19 and the pressing kit 5 disappears. Under the action of the elastic member 18, the pressing kit 5 moves up and resets, and then the pressing block 20 continues to rotate and contacts the guide block 19 again (the pressing block 20 first contacts the area with a lower height of the guide block 19), so that the guide block 19 and the pressing kit 5 continue to move downward, thereby causing the pressing kit 5 to reciprocate up and down, preventing the slurry from being blocked inside the pipe 2 (and the diameters of the connecting rod 4 and the pressing kit 5 are both smaller than the inner diameter of the pipe 2, which has little effect on the slurry passing through the pipe 2. The pressing kit 5 and the connecting rod 4 are sealed to prevent the slurry from entering the inside of the pressing kit 5).

[0035] Example 2

[0036] As a preferred option, see Figure 4 The connecting rod 4 includes a mounting rod 41 and a rotating rod 42 rotatably mounted below the mounting rod 41 ; the mounting rod 41 is fixedly mounted on the mounting member 6 , the rotating rod 42 rotates at the mounting member 6 , and the pressing kit 5 is mounted on the rotating rod 42 .

[0037] For further optimization, see Figure 3 、 Figure 5 and Figure 6, a working box 8 is provided on the connecting rod 4, and a pressure plate 13 is provided for sliding inside the working box 8. The pressure plate 13 and the working box 8 are sealed, and the movement of the pressure plate 13 can squeeze the air inside the working box 8; a rack 14 is provided for sliding on the working box 8, and the rack 14 is connected to the pressure plate 13. A gear 12 is provided for rotating on the working box 8, and the gear 12 is meshed with the rack 14; a reel 9 is provided on the shaft of the gear 12, and a torsion spring is provided between the reel 9 and the working box 8; the end of the reel 9 away from the gear 12 extends to the outside of the working box 8, and a pull rope 7 is wound around the reel 9, and the pull rope 7 is away from One end of the rolling rod 9 is connected to the pressing kit 5; an air inlet 15 and an air outlet 16 are provided on the working box 8, and the air inlet 15 and the air outlet 16 are located below the pressing plate 13; an air outlet 21 is provided on the outside of the pressing kit 5, and a channel is provided in the connecting rod 4 (there is a channel between the mounting rod 41 and the rotating rod 42, and the two are relatively connected, and the channel outlet on the rotating rod 42 is located inside the pressing kit 5, and the pressing kit 5 and the connecting rod 4 are sealed, and the air outlet 21 is connected to the inner cavity of the pressing kit 5, so the air outlet 21 is connected to the air outlet 16 through the channel); Through the connected area, the outside air enters the interior of the pipe 2 (and the area near the lower part of the pipe 2) through the air inlet 15, the working box 8, the air outlet 16, the channel, the pressing kit 5 and the air outlet 21, so that the pipe 2 is connected with the outside (balanced air pressure) to avoid excessive pressure below the pipe 2 during the grouting process, which affects the grouting efficiency or causes the grouting to be impossible; and when the pressing kit 5 moves downward, it pulls the pull rope 7 to release the pull rope 7 wrapped around the winding rod 9, so that the winding rod 9 rotates with the gear 12, driving the rack 14 to rotate. As the pressure plate 13 moves downward, the air inside the working box 8 is pressed into the pipe 2. The air entering will flow inside the pipe 2, which has the effect of clearing the pipe 2 and preventing the pipe from being blocked; and the pressing kit 5 moves upward, so that the tension on the pull rope 7 disappears, and the winding rod 9 rotates in the opposite direction under the action of the torsion spring, so that the pressure plate 13 and other components are reset. During the reciprocating movement of the pressing kit 5, the pressure plate 13 can also move reciprocatingly (the pressure plate 13 moves above the air inlet 15, and the air enters the working box 8 again through the air inlet 15), intermittently supplying air to the inside of the pipe 2.

[0038] In this embodiment, as a further optimization solution, please refer to Figure 4 A limiter 11 is provided on the mounting rod 41, and the limiter 11 contacts the pull rope 7, limiting the pull rope 7 on the inner wall of the pipe 2 (the limiter 11 refers to an arc-shaped or other shaped baffle, which presses the pull rope 7 on the inner wall of the pipe 2, and a groove is provided at the contact portion between the baffle and the pull rope 7 for the pull rope 7 to move), so that the pull rope 7 contacts the inner wall of the pipe 2, ensuring that the pull rope 7 does not contact the impeller 10.

[0039] In this embodiment, as a further optimization solution, please refer to Figure 6 and Figure 7The pressing kit 5 is provided with a shielding cover 22 for covering the air outlet 21 (the shielding cover 22 is detachably mounted on the pressing kit 5, so that the shielding cover 22 can be removed for easy cleaning or replacement later), the opening of the shielding cover 22 faces downward, and a baffle 23 for covering the opening is hinged on the shielding cover 22, and an elastic element is installed between the shielding cover 22 and the baffle 23; when air is discharged from the air outlet 21, the air enters the shielding cover 22, and then pushes the baffle 23 to rotate the baffle 23 downward, opening the opening and allowing air to be discharged from the shielding cover 22; in the process of the pressing kit 5 moving downward, when the baffle 23 comes into contact with the slurry, it will push the baffle 23 to rotate upward to seal the opening, preventing the slurry from entering the air outlet 21; and the maximum rotation angle of the baffle 23 is an acute angle (when the baffle 23 is rotated to the maximum angle, it is still tilted toward the pressing kit 5), preventing the slurry from entering the shielding cover 22.

[0040] A grouting method, utilizing a grouting auxiliary mechanism, specifically comprises the following steps:

[0041] S1: After inserting one end of the pipe fitting 2 into the inner center of the template 1, pour the slurry from the funnel 3 so that it enters the pipe fitting 2 and contacts the impeller 10, driving the impeller 10 to rotate and rotate the connecting rod 4. Through the action of the linkage mechanism, the pressing kit 5 moves up and down, pushing the slurry inside the pipe fitting 2. The slurry passes through the pipe fitting 2 and falls into the template 1.

[0042] S2: After the interior of the formwork 1 is filled, remove the funnel 3, connecting rod 4 and pressing kit 5 from the pipe 2, insert steel bars from the top of the pipe 2 for vibration, and knock on the bottom of the formwork 1 until the top of the hole in the formwork 1 is fully filled; after removing the funnel 3, connecting rod 4 and pressing kit 5, they need to be cleaned quickly to reduce the chance of slurry solidifying on the mechanism and facilitate cleaning of the mechanism.

[0043] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A grouting auxiliary mechanism, comprising: A pipe (2) inserted into the template (1) and a funnel (3) mounted on the outer end of the pipe (2), characterized in that the grouting auxiliary mechanism further comprises: a mounting member (6) arranged on the funnel (3); The mounting member (6) is provided with a connecting rod (4) extending into the pipe (2) in a rotatable manner, a pressing member (5) is provided on a sliding sleeve below the connecting rod (4), an impeller (10) located in the pipe (2) is provided on the connecting rod (4), and a linkage mechanism connected to the pressing member (5) is provided. When the slurry enters the pipe (2) and contacts the impeller (10), the impeller (10) is driven to rotate and the connecting rod (4) is driven to rotate. The pressing member (5) is linked to the linkage mechanism to move back and forth up and down. The connecting rod (4) includes a mounting rod (41) and a rotating rod (42) rotatably mounted below the mounting rod (41); A working box (8) is provided on the connecting rod (4), a pressure plate (13) for discharging air from the inner cavity of the working box (8) is slidably provided in the working box (8), a rack (14) connected to the pressure plate (13) is slidably provided on the working box (8), a gear (12) meshing with the rack (14) is rotatably provided on the working box (8), a reel (9) is provided on the shaft of the gear (12), a torsion spring is provided between the reel (9) and the working box (8), a pull rope (7) connected to the pressing kit (5) is wound around the reel (9), and an air inlet (15) and an air outlet (16) are provided on the working box (8) on the moving path of the pressure plate (13); An air outlet hole (21) is provided on the outside of the pressing kit (5), and a channel is provided in the connecting rod (4) so ​​that the air outlet hole (21) is connected to the air outlet (16).

2. A grouting auxiliary mechanism according to claim 1, characterized in that: The linkage mechanism comprises a guide block (19) arranged on the inner wall of the pressing kit (5), a pressure block (20) arranged on the outer wall of the connecting rod (4), and an elastic member (18) arranged between the pressing kit (5) and the connecting rod (4); the height of the guide block (19) gradually increases along the rotation direction of the connecting rod (4), and the pressure block (20) is arranged above the guide block (19).

3. A grouting auxiliary mechanism according to claim 2, characterized in that: The elastic member (18) is rotatably connected to the connecting rod (4); a guide groove extending along the moving direction of the pressing kit (5) is provided on the inner wall of the tube (2); and a guide member (17) inserted into the guide groove is provided on the pressing kit (5).

4. A grouting auxiliary mechanism according to claim 1, characterized in that: The mounting rod (41) is provided with a limiting member (11) for pressing the pull rope (7).

5. A grouting auxiliary mechanism according to claim 1, characterized in that: The pressing kit (5) is provided with a shielding cover (22) for covering the air outlet (21), the opening of the shielding cover (22) facing downward, and a baffle (23) for shielding the opening and an elastic element connected to the baffle (23) are hingedly connected to the shielding cover (22).

6. A grouting auxiliary mechanism according to claim 1, characterized in that: The funnel (3) is detachably connected to the pipe fitting (2).

7. A grouting method, using a grouting auxiliary mechanism according to claim 1, characterized in that: The specific steps include: S1: After inserting one end of the pipe (2) into the inner center of the template (1), pour the slurry from the funnel (3) so that it enters the pipe (2) and contacts the impeller (10), driving the impeller (10) to rotate and rotate the connecting rod (4). Through the action of the linkage mechanism, the pressing kit (5) moves up and down, pushing the slurry inside the pipe (2). The slurry passes through the pipe (2) and falls into the template (1); S2: After the inside of the template (1) is filled, the funnel (3), the connecting rod (4) and the pressing kit (5) are removed from the pipe (2), and a steel bar is inserted from the top of the pipe (2) for vibration, and the bottom of the template (1) is knocked until the top of the opening of the template (1) is fully filled.

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