A connecting sleeve sealing device for hollow grouting anchor rod

Abstract

The utility model discloses a connecting sleeve sealing device for a hollow grouting anchor rod, and relates to the technical field of hollow grouting anchor rod connecting sleeve sealing, including a hollow grouting anchor rod, a connecting unit is arranged on one side of the hollow grouting anchor rod, a sealing unit is arranged on one side of the connecting unit, an anti-blocking unit is arranged on one side of the hollow grouting anchor rod, the anti-blocking unit includes a discharge pipe and a scraper unit, the discharge pipe is arranged at one end of the hollow grouting anchor rod, the scraper unit is arranged on the inner side of the discharge pipe, the scraper unit includes a connecting rod, the connecting rod is arranged on the inner side of the discharge pipe, a sliding rod is arranged through the inner side of the connecting rod, and a second spring is arranged on the outer side of the surface of the sliding rod. The utility model achieves the effect of facilitating the scraping of the inner wall of the discharge pipe through the mutual cooperation of the connecting rod, the sliding rod, the second spring, the fitting block and the scraper, and avoids the problem of blockage during the grouting process.

Description

Technical Field

[0001] The utility model relates to the technical field of hollow grouting anchor rod connection sleeve sealing, in particular to a connection sleeve sealing device for the hollow grouting anchor rod. Background Art

[0002] Hollow grouting anchor is a kind of hollow anchor, which is mostly used in relatively stable and complete rock formations. Resin, engineering glue, quick-setting cement and other anchoring agents are injected from the center of the anchor, which has better anchoring quality than ordinary anchors. With the emergence of self-propelled hollow grouting anchor, strata under loose rock and soil conditions can also use hollow grouting anchor. Sealing can be divided into two categories: static sealing and dynamic sealing. Sealing is a component or measure to prevent fluid or solid particles from leaking from adjacent joint surfaces and to prevent external impurities such as dust and moisture from invading the interior of machinery and equipment. Static sealing refers to the seal of a tightly sealed cabin and sealed container used to seal letters and wills.

[0003] At present, publication number CN206256918U discloses a connection sleeve sealing structure for a self-drilling hollow grouting anchor rod, wherein the connection sleeve comprises a tubular body; the inner holes at both ends of the tubular body are provided with internal threads for connecting the self-drilling hollow grouting anchor rod; an annular boss is provided at the inner hole at the middle position of the tubular body for positioning the self-drilling hollow grouting anchor rod connected at both ends, and a sealing groove is provided on the inner ring surface of the annular boss for installing a sealing ring. The utility model solves the grout leakage phenomenon of the self-drilling hollow anchor rod during the grouting process, and also solves the problem of excessive grouting pressure loss during the grouting process, ensures the density of the cement slurry after solidification and the slurry can be well filled into the rock mass cracks, and greatly improves the quality of engineering construction.

[0004] In order to solve the sealing problem, the existing technology is to provide a sealing groove on the inner surface of the annular boss for installing a sealing ring. However, during the grouting process, the slurry may adhere to the inside of the pipe, affecting the discharge of the material, and thus causing blockage in the discharge. Utility Model Content

[0005] The utility model aims to provide a connecting sleeve sealing device for a hollow grouting anchor rod to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A connecting sleeve sealing device for a hollow grouting anchor comprises the hollow grouting anchor, a connecting unit is arranged on one side of the hollow grouting anchor, a sealing unit is arranged on one side of the connecting unit, and an anti-blocking unit is arranged on one side of the hollow grouting anchor.

[0008] The anti-blocking unit comprises a discharge pipe and a scraper unit. The discharge pipe is arranged at one end of the hollow grouting anchor rod, and the scraper unit is arranged on the inner side of the discharge pipe.

[0009] The scraper unit includes a connecting rod, which is arranged on the inner side of the discharge pipe, a sliding rod is penetrated through the inner side of the connecting rod, a spring 2 is arranged on the outer side of the surface of the sliding rod, one end of the spring 2 is fixedly connected to one side of the connecting rod, one end of the spring 2 is fixedly connected to a fitting block, and one side of the fitting block is fixedly connected to a scraper.

[0010] A further improvement of the technical solution of the utility model is that the connecting unit includes a spliced ​​anchor rod, which is arranged on one side of the hollow grouting anchor rod, one side of the spliced ​​anchor rod is fixedly connected with a protruding rod, the inner side of the surface of the protruding rod is fixedly connected with threaded teeth, and the inner side of the threaded teeth is threadedly connected to the inner side of the hollow grouting anchor rod.

[0011] By adopting the above technical solution, the hollow grouting anchor rod can be extended by splicing the connection relationship between the anchor rod, the protruding rod, the threaded teeth and the hollow grouting anchor rod, while avoiding the phenomenon of slurry leakage.

[0012] A further improvement of the technical solution of the utility model is that a grout-stopping nut is arranged on the inner side of the surface of the spliced ​​anchor rod, a backing plate is fixedly connected to one side of the spliced ​​anchor rod, and an injection pipe is sleeved on one side of the backing plate.

[0013] By adopting the above technical solution, the slurry stop nut and the pad are arranged to prevent the slurry from overflowing. At the same time, the injection pipe is arranged to facilitate the transportation of the slurry.

[0014] A further improvement of the technical solution of the utility model is that the sealing unit includes a connecting sleeve, the connecting sleeve is fixedly connected to the inner side of the surface of the hollow grouting anchor rod, a sealing groove is opened on the inner side of the connecting sleeve, and an inner groove is opened on the inner side of the connecting sleeve.

[0015] By adopting the above technical solution, through the arrangement of the connecting sleeve, the sealing groove and the inner groove, the connection position of the hollow grouting anchor rod and the spliced ​​anchor rod can be sealed to avoid leakage.

[0016] A further improvement of the technical solution of the utility model is that: a spring 1 is fixedly connected to the inner side of the inner groove, and a sealing block is fixedly connected to one end of the spring 1.

[0017] By adopting the above technical solution, the spring 1 and the sealing block cooperate with each other, so as to achieve the effect of facilitating the re-sealing of the sealing points of the hollow grouting anchor rod and the spliced ​​anchor rod.

[0018] A further improvement of the technical solution of the utility model is that: an anchor head is fixedly connected to one side of the discharge pipe, and a plurality of discharge holes are opened on the inner side of the surface of the discharge pipe.

[0019] By adopting the above technical solution and setting a plurality of discharge holes, the effect of facilitating blockage during the discharge process is achieved.

[0020] A further improvement of the technical solution of the utility model is that a fixed rod is rotatably connected to the inner side of the discharge pipe, a paddle is fixedly connected to one end of the fixed rod, a connecting seat is fixedly connected to the inner side of the surface of the fixed rod, and one side of the connecting seat is fixedly connected to one side of the connecting rod.

[0021] By adopting the above technical solution, the fixing rod, the paddle blade and the connecting seat cooperate with each other, so as to provide power for scraping the inner wall of the discharge pipe during the material conveying process.

[0022] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0023] 1. The utility model provides a connecting sleeve sealing device for a hollow grouting anchor rod. Through the cooperation of a connecting rod, a sliding rod, a spring 2, a fitting block and a scraper, the inner wall of a discharge pipe can be scraped conveniently, while the problem of blockage during the grouting process can be avoided. Through the connection relationship between the spliced ​​anchor rod, the protruding rod, the threaded teeth and the hollow grouting anchor rod, the hollow grouting anchor rod can be extended conveniently, while the phenomenon of slurry leakage can be avoided.

[0024] 2. The utility model provides a connecting sleeve sealing device for a hollow grouting anchor rod. By arranging the connecting sleeve, the sealing groove and the inner groove, the connecting position of the hollow grouting anchor rod and the spliced ​​anchor rod can be sealed to avoid leakage. By cooperating with the spring 1 and the sealing block, the sealing position of the hollow grouting anchor rod and the spliced ​​anchor rod can be re-sealed. By arranging a plurality of discharge holes, the effect of preventing blockage during the discharge process can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0026] Figure 2 It is a structural schematic diagram of the connection unit of the utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the sealing unit of the utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the anti-blocking unit of the utility model;

[0029] Figure 5 For this utility model Figure 4 A magnified schematic diagram of the A structure.

[0030] In the figure: 1. hollow grouting anchor rod; 2. connecting unit; 21. spliced ​​anchor rod; 22. protruding rod; 23. threaded teeth; 24. grouting nut; 25. pad; 26. injection pipe; 3. sealing unit; 31. connecting sleeve; 32. sealing groove; 33. inner groove; 34. spring one; 35. sealing block; 4. anti-blocking unit; 41. discharge pipe; 42. anchor head; 43. discharge hole; 44. fixing rod; 45. paddle; 46. connecting seat; 47. scraper unit; 471. connecting rod; 472. sliding rod; 473. spring two; 474. fitting block; 475. scraper. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with the embodiments:

[0032] Example 1

[0033] like Figure 1-5 As shown, the utility model provides a connecting sleeve sealing device for a hollow grouting anchor rod, comprising a hollow grouting anchor rod 1, a connecting unit 2 is arranged on one side of the hollow grouting anchor rod 1, a sealing unit 3 is arranged on one side of the connecting unit 2, an anti-blocking unit 4 is arranged on one side of the hollow grouting anchor rod 1, the anti-blocking unit 4 comprises a discharge pipe 41 and a scraper unit 47, the discharge pipe 41 is arranged at one end of the hollow grouting anchor rod 1, the scraper unit 47 is arranged on the inner side of the discharge pipe 41, the scraper unit 47 comprises a connecting rod 471, the connecting rod 471 is arranged on the inner side of the discharge pipe 41, a sliding rod 472 is arranged through the inner side of the connecting rod 471, and the sliding rod A spring 473 is provided on the outer side of the surface of 472, one end of the spring 473 is fixedly connected to one side of the connecting rod 471, one end of the spring 473 is fixedly connected to a fitting block 474, one side of the fitting block 474 is fixedly connected to a scraper 475, during the rotation of the fixed rod 44, the connecting rod 471 on one side of the connecting seat 46 is synchronously driven to rotate, and at the same time, the scraper 475 and the fitting block 474 are fitted with the inner wall of the discharge pipe 41 to scrape off the adhered slurry, and at the same time, the elastic action of the spring 473 drives the scraper 475 to fit tightly with the inner wall of the discharge pipe 41 to avoid clogging of the slurry.

[0034] Example 2

[0035] like Figure 1-5As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the connection unit 2 includes a spliced ​​anchor rod 21, the spliced ​​anchor rod 21 is arranged on one side of the hollow grouting anchor rod 1, one side of the spliced ​​anchor rod 21 is fixedly connected with a protruding rod 22, the inner side of the surface of the protruding rod 22 is fixedly connected with a threaded tooth 23, the inner side of the threaded tooth 23 is threadedly connected to the inner side of the hollow grouting anchor rod 1, a grouting nut 24 is arranged on the inner side of the surface of the spliced ​​anchor rod 21, a pad 25 is fixedly connected to one side of the spliced ​​anchor rod 21, and an injection pipe 26 is sleeved on one side of the pad 25, and the sealing unit 3 includes a connecting sleeve 31, the connecting sleeve 31 is fixedly connected to the inner side of the surface of the hollow grouting anchor rod 1, a sealing groove 32 is provided on the inner side of the connecting sleeve 31, and an inner Groove 33, the inner side of the inner groove 33 is fixedly connected with a spring 34, one end of the spring 34 is fixedly connected with a sealing block 35, by placing the protruding rod 22 on the inner side of the hollow grouting anchor rod 1, and then rotating the threaded teeth 23 to tighten it into the inside of the hollow grouting anchor rod 1, the connection between the hollow grouting anchor rod 1 and the spliced ​​anchor rod 21 is completed, and at the same time, through the elastic action of the spring 34, the sealing block 35 is driven to fit the connection between the hollow grouting anchor rod 1 and the spliced ​​anchor rod 21, and at the same time, the sealing groove 32 is tightly fitted with the inner side of the spliced ​​anchor rod 21 to avoid leakage during the injection process, and then the hollow grouting anchor rod 1 and the spliced ​​anchor rod 21 are placed in the grouting position through the anchor head 42, and the external grouting pipe is connected to the injection pipe 26 for grouting.

[0036] Example 3

[0037] like Figure 1-5 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, an anchor head 42 is fixedly connected to one side of the discharge pipe 41, a plurality of discharge holes 43 are opened on the inner side of the surface of the discharge pipe 41, a fixed rod 44 is rotatably connected to the inner side of the discharge pipe 41, a paddle 45 is fixedly connected to one end of the fixed rod 44, a connecting seat 46 is fixedly connected to the inner side of the surface of the fixed rod 44, and one side of the connecting seat 46 is fixedly connected to one side of the connecting rod 471. During the grouting process, the slurry passes through the inner side of the spliced ​​anchor rod 21 and the hollow grouting anchor rod 1, and the paddle 45 and the fixed rod 44 are driven to rotate by the flow impact force of the slurry, and the slurry is evenly sprayed out through the plurality of discharge holes 43.

[0038] The working principle of the connecting sleeve sealing device for the hollow grouting anchor rod will be described in detail below.

[0039] like Figure 1-5As shown, by placing the protruding rod 22 on the inner side of the hollow grouting anchor rod 1, the threaded teeth 23 are rotated and tightened into the inner side of the hollow grouting anchor rod 1, thereby completing the connection between the hollow grouting anchor rod 1 and the spliced ​​anchor rod 21, and at the same time, through the elastic action of the spring 1 34, the sealing block 35 is driven to fit the connection between the hollow grouting anchor rod 1 and the spliced ​​anchor rod 21, and at the same time, the sealing groove 32 is tightly fitted with the inner side of the spliced ​​anchor rod 21 to avoid leakage during the injection process, and then the hollow grouting anchor rod 1 and the spliced ​​anchor rod 21 are placed in the grouting position through the anchor head 42, and the external grouting pipe is connected to the injection pipe 26 to perform injection. During grouting, the slurry passes through the inner side of the spliced ​​anchor rod 21 and the hollow grouting anchor rod 1, and the flow impact force of the slurry drives the paddle 45 and the fixed rod 44 to rotate. The slurry is evenly sprayed out through a plurality of discharge holes 43. During the rotation of the fixed rod 44, the connecting rod 471 on one side of the connecting seat 46 is synchronously driven to rotate. At the same time, the scraper 475 and the fitting block 474 fit with the inner wall of the discharge pipe 41 to scrape off the adhered slurry. At the same time, the elastic action of the spring 2 473 drives the scraper 475 to fit closely with the inner wall of the discharge pipe 41 to avoid clogging of the slurry.

[0040] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A connecting sleeve sealing device for a hollow grouting anchor rod, comprising a hollow grouting anchor rod (1), characterized in that: A connection unit (2) is provided on one side of the hollow grouting anchor rod (1), a sealing unit (3) is provided on one side of the connection unit (2), and an anti-blocking unit (4) is provided on one side of the hollow grouting anchor rod (1); The anti-blocking unit (4) comprises a discharge pipe (41) and a scraper unit (47), wherein the discharge pipe (41) is arranged at one end of the hollow grouting anchor rod (1), and the scraper unit (47) is arranged on the inner side of the discharge pipe (41); The scraper unit (47) includes a connecting rod (471), the connecting rod (471) is arranged on the inner side of the discharge pipe (41), a sliding rod (472) is arranged through the inner side of the connecting rod (471), a spring 2 (473) is arranged on the outer side of the surface of the sliding rod (472), one end of the spring 2 (473) is fixedly connected to one side of the connecting rod (471), one end of the spring 2 (473) is fixedly connected to a fitting block (474), and one side of the fitting block (474) is fixedly connected to a scraper (475).

2. A connecting sleeve sealing device for a hollow grouting anchor according to claim 1, characterized in that: The connection unit (2) comprises a spliced ​​anchor rod (21), the spliced ​​anchor rod (21) being arranged on one side of the hollow grouting anchor rod (1), a protruding rod (22) being fixedly connected to one side of the spliced ​​anchor rod (21), a threaded tooth (23) being fixedly connected to the inner side of the surface of the protruding rod (22), and the inner side of the threaded tooth (23) being threadedly connected to the inner side of the hollow grouting anchor rod (1).

3. A connecting sleeve sealing device for a hollow grouting anchor according to claim 2, characterized in that: A grout-stop nut (24) is provided on the inner side of the surface of the spliced ​​anchor rod (21), a backing plate (25) is fixedly connected to one side of the spliced ​​anchor rod (21), and an injection pipe (26) is sleeved on one side of the backing plate (25).

4. The connecting sleeve sealing device for a hollow grouting anchor according to claim 1, characterized in that: The sealing unit (3) comprises a connecting sleeve (31), the connecting sleeve (31) is fixedly connected to the inner side of the surface of the hollow grouting anchor rod (1), a sealing groove (32) is provided on the inner side of the connecting sleeve (31), and an inner groove (33) is provided on the inner side of the connecting sleeve (31).

5. A connecting sleeve sealing device for a hollow grouting anchor according to claim 4, characterized in that: A spring 1 (34) is fixedly connected to the inner side of the inner groove (33), and a sealing block (35) is fixedly connected to one end of the spring 1 (34).

6. The connecting sleeve sealing device for a hollow grouting anchor according to claim 1, characterized in that: An anchor head (42) is fixedly connected to one side of the discharge pipe (41), and a plurality of discharge holes (43) are provided on the inner side of the surface of the discharge pipe (41).

7. A connecting sleeve sealing device for a hollow grouting anchor according to claim 6, characterized in that: The inner side of the discharge pipe (41) is rotatably connected to a fixed rod (44), one end of the fixed rod (44) is fixedly connected to a paddle (45), the inner side of the surface of the fixed rod (44) is fixedly connected to a connecting seat (46), and one side of the connecting seat (46) is fixedly connected to one side of the connecting rod (471).

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