Grouting type anchor rod

Abstract

The utility model relates to the technical field of anchor rods, and discloses a grouting type anchor rod which comprises an anchor rod main body, a drill bit is fixedly installed at the bottom of the anchor rod main body, a grouting opening is formed in the anchor rod main body, an adjusting mechanism is arranged outside the anchor rod main body, an unfolding mechanism is arranged outside the adjusting mechanism, and a grouting opening is formed in the anchor rod main body. The unfolding mechanism comprises an unfolding assembly and a power assembly, the power assembly is arranged at the top of the unfolding assembly, through operation of the power assembly, an unfolding plate is unfolded under the limiting effect of a sliding block A, the unfolding plate can be freely unfolded to the size of a drilled anchor hole and then is fixed in position, and therefore the unfolding plate cannot move freely during grouting; the purpose that the device can be fixed in an anchor hole is achieved, the contact between the device and a grouting body can be increased, the anchoring force of the device is increased, after the position of the baffle is fixed, the anchor rod body is installed in the threaded sleeve in a threaded mode, the anchor rod body can move to the length of a drilled hole at will, and the device can be conveniently used for anchor holes of all depths.

Description

Technical Field

[0001] The utility model relates to the technical field of anchor rods, in particular to a grouting type anchor rod. Background Art

[0002] Anchor rod is a very widely used rock and soil reinforcement technology and is commonly used in mine support. Grouting anchor rod is used in mines, especially in coal mine support, because of its low price and high pull-out force. A grouting anchor rod is needed.

[0003] According to the description of a grouting anchor (authorization announcement number: CN 219910827 U) disclosed in the patent website, "The utility model discloses a grouting anchor, which belongs to the technical field of construction engineering equipment, including an anchor body, a drill bit being threadedly connected to the bottom end of the anchor body, and a fixing ring being threadedly connected to the outer surface of the anchor body. The utility model is provided with an anchor body, an anchor plate and other components. After the drilling is completed, the fixing pin is removed, and then the anchor body is rotated inside the outer tube, so that the drill bit and the anchor body are spirally ascended together inside the outer tube, and the anchor plate is squeezed by the cone surface above the drill bit to rotate along the outer surface of the rotating joint together with the movable block, so that the anchor plate is expanded outward and embedded in the rock layer by rotating the anchor body, so that the device can be fixed inside the rock after the drilling is completed, and the extension of the anchor plate can increase the contact area between the device and the grouting body, thereby increasing the anchoring force of the device, and solving the problem that the existing device cannot be fixed on the rock layer before the slurry solidifies."

[0004] In view of the above description, the applicant believes that there are the following problems:

[0005] During use of the utility model, the fixing pin is removed and the anchor rod body is rotated inside the outer tube, so that the drill bit and the anchor rod body spirally rise together inside the outer tube, and the cone surface above the drill bit squeezes the anchor plate and the movable block to rotate along the outer surface of the rotating joint, so as to achieve the effect of expanding the anchor plate outward and embedding it into the rock layer by rotating the anchor rod body. However, in actual use, the fixing pin is inserted into the outer tube and the anchor rod body, crossing the grouting groove, blocking the grouting groove to a certain extent, making the grouting resistance larger. Secondly, the grouting holes opened in the outer tube make the grouting not from bottom to top, which is easy to be unevenly grouted and generate bubbles. Therefore, it is necessary to improve a grouting type anchor rod to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a grouting anchor rod to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a grouting type anchor rod, comprising an anchor rod body, a drill bit is fixedly installed at the bottom of the anchor rod body, a grouting port is opened inside the anchor rod body, an adjustment mechanism is arranged outside the anchor rod body, and an expansion mechanism is arranged outside the adjustment mechanism.

[0008] The unfolding mechanism comprises an unfolding assembly and a power assembly, and the power assembly is arranged on the top of the unfolding assembly.

[0009] Preferably, the adjustment mechanism includes two threaded sleeves, both of which are threadedly installed on the outside of the anchor rod body, a rotating cylinder is fixedly installed on the outside of the two threaded sleeves, a baffle is fixedly installed on the top of the rotating cylinder, and a fixing nut is threadedly installed on the outside of the anchor rod body to strengthen the position fixation of the baffle.

[0010] Preferably, the fixing nut is arranged on the top of the baffle, the anchor rod body passes through the baffle, and a threaded hole is opened inside the threaded sleeve, so that the anchor rod body is threadedly installed inside the threaded sleeve for depth adjustment.

[0011] Preferably, the expansion component includes four limit bars, and the four limit bars are all slidably installed inside the rotating drum. An outer tube is fixedly installed outside every two of the limit bars, and four mounting blocks A are fixedly installed outside the outer tube. Two rotating shafts are rotatably installed inside the four mounting blocks A, and two rotating rods are rotatably installed outside the rotating shafts. A mounting block B is rotatably installed inside the end of the rotating rod away from the rotating shaft, and four sliders A are slidably installed inside the baffle. The bottom of the four sliders A are fixedly installed with an expansion plate, so as to achieve the purpose of fixing the device in the anchor hole, increase the contact between the device and the grouting body, and increase the anchoring force of the device.

[0012] Preferably, the side of the expansion plate close to the limiting strip is fixedly mounted to the mounting block B, and the number of the outer tubes is two, and the outer tubes are slidably mounted on the outside of the drum, so that the mounting block A moves.

[0013] Preferably, the power assembly includes two connecting rods, both of which are fixedly installed on the top of the outer tube, an arc block is fixedly installed between the two connecting rods, a handle is fixedly installed on the top of the arc block, a vertical plate is fixedly installed on the top of the baffle, a rectangular block is fixedly installed on the top of the baffle, a slider B is slidably installed inside the baffle, a spring is fixedly installed on the side of the slider B away from the vertical plate, and a pin is fixedly installed on the side of the slider B away from the spring, which can be inserted into the socket of the vertical plate to fix the position.

[0014] Preferably, the vertical plate, arc block, rectangular block and corresponding positions of the latch are provided with sockets, the connecting rod is slidably installed inside the baffle, the end of the spring away from the slider B is fixedly installed on the baffle, and the spring rebound drives the latch to pass through the rectangular block and the arc block and be inserted into the socket of the vertical plate.

[0015] Compared with the prior art, the utility model provides a grouting anchor rod, which has the following beneficial effects:

[0016] 1. The grouting anchor rod, through the setting of the unfolding mechanism, during use, through the operation of the power component, the unfolding plate is unfolded under the limiting action of the slider A, and can be arbitrarily unfolded to the size of the drilled anchor hole and then fixed in position, so that it will not move arbitrarily during grouting, so as to achieve the purpose of fixing the device in the anchor hole, increase the contact between the device and the grouting body, and increase the anchoring force of the device.

[0017] 2. The grouting anchor rod, through the setting adjustment mechanism, during use, after the baffle is fixed, the anchor rod body is threadedly installed inside the threaded sleeve, so that the anchor rod body can be moved downward and can be moved to the drilling length at will, which is convenient for use of anchor holes of various depths. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0019] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the exploded structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the exploded structure of the deployment mechanism of the utility model;

[0022] Figure 4 This is a schematic diagram of the exploded structure of the outer tube and its connected mechanism of the utility model;

[0023] Figure 5 This is a schematic diagram of the exploded structure of the power component of the utility model.

[0024] In the figure: 1. anchor rod body; 2. drill bit; 3. grouting port; 4. adjustment mechanism; 41. threaded sleeve; 42. rotating drum; 43. baffle; 44. fixing nut; 5. unfolding mechanism; 51. unfolding assembly; 511. limit strip; 512. outer tube; 513. mounting block A; 514. rotating shaft; 515. rotating rod; 516. mounting block B; 517. slider A; 518. unfolding plate; 52. power assembly; 521. connecting rod; 522. arc block; 523. pull handle; 524. vertical plate; 525. rectangular block; 526. slider B; 527. spring; 528. latch. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Embodiment 1:

[0028] See also Figure 1-4 The utility model provides a technical solution: a grouting anchor, comprising an anchor body 1, a drill bit 2 is fixedly installed at the bottom of the anchor body 1, a grouting port 3 is opened inside the anchor body 1, an adjusting mechanism 4 is arranged outside the anchor body 1, and an unfolding mechanism 5 is arranged outside the adjusting mechanism 4.

[0029] The unfolding mechanism 5 includes an unfolding assembly 51 and a power assembly 52 . The power assembly 52 is disposed on the top of the unfolding assembly 51 .

[0030] Furthermore, the expansion component 51 includes four limit bars 511, and the four limit bars 511 are all slidably installed inside the rotating drum 42. An outer tube 512 is fixedly installed outside every two limit bars 511, and four mounting blocks A513 are fixedly installed outside the outer tube 512. Two rotating shafts 514 are rotatably installed inside the four mounting blocks A513, and two rotating rods 515 are rotatably installed outside the rotating shafts 514. A mounting block B516 is rotatably installed inside the end of the rotating rod 515 away from the rotating shafts 514, and four sliders A517 are slidably installed inside the baffle 43. The bottom of the four sliders A517 are fixedly installed with expansion plates 518, so that the device can be fixed in the anchor hole, the contact between the device and the grouting body can be increased, and the anchoring force of the device is increased.

[0031] Furthermore, the unfolding plate 518 is fixedly mounted on one side close to the limiting strip 511 and the mounting block B516. There are two outer tubes 512, which are slidably mounted on the outside of the drum 42, so that the mounting block A513 moves.

[0032] Furthermore, the power assembly 52 includes two connecting rods 521, and the two connecting rods 521 are fixedly installed on the top of the outer tube 512. An arc block 522 is fixedly installed between the two connecting rods 521, a handle 523 is fixedly installed on the top of the arc block 522, a vertical plate 524 is fixedly installed on the top of the baffle 43, a rectangular block 525 is fixedly installed on the top of the baffle 43, a slider B526 is slidably installed inside the baffle 43, a spring 527 is fixedly installed on the side of the slider B526 away from the vertical plate 524, and a pin 528 is fixedly installed on the side of the slider B526 away from the spring 527, which can be inserted into the socket of the vertical plate 524 to fix the position.

[0033] Furthermore, corresponding positions of the vertical plate 524, the arc block 522, the rectangular block 525 and the latch 528 are all provided with sockets, the connecting rod 521 is slidably installed inside the baffle 43, and the end of the spring 527 away from the slider B526 is fixedly installed on the baffle 43. The spring 527 rebounds and drives the latch 528 to pass through the rectangular block 525 and the arc block 522 and be inserted into the socket of the vertical plate 524.

[0034] Embodiment two:

[0035] See also Figure 5 , and combined with Example 1, it is further obtained that the adjustment mechanism 4 includes two threaded sleeves 41, the two threaded sleeves 41 are threadedly installed on the outside of the anchor rod body 1, a rotating cylinder 42 is fixedly installed on the outside of the two threaded sleeves 41, a baffle 43 is fixedly installed on the top of the rotating cylinder 42, and a fixing nut 44 is threadedly installed on the outside of the anchor rod body 1 to strengthen the position fixation of the baffle 43.

[0036] Furthermore, a fixing nut 44 is arranged on the top of the baffle 43, the anchor rod body 1 passes through the baffle 43, and a threaded hole is provided inside the threaded sleeve 41, so that the anchor rod body 1 is threadedly installed inside the threaded sleeve 41 for depth adjustment.

[0037] In actual operation, when this device is used, before use, the slider B526 is driven by the spring 527 to move, so that the pin 528 passes through the rectangular block 525 and the arc block 522, and is inserted into the socket at the bottom of the vertical plate 524, so that the bottom of the arc block 522 fits the top of the baffle 43, so that the connecting rod 521 controls the outer tube 512 to be unable to move, so that every four expansion plates 518 are closed to form a ring, the baffle 43 is pressed to fix its position, and the anchor rod body 1 is rotated and threadedly installed inside the threaded sleeve 41, so that the anchor rod body 1 moves downward. After moving to the drilling length, the slider B526 is pulled to disengage the pin 528 from the vertical plate 524 and the arc block 522, the spring 527 is compressed, and the pull handle 523 is pulled to move the arc block 522 upward, so that the connecting rod 521 pulls The outer tube 512 moves, so that the mounting block A513 moves and drives the rotating shaft 514 to move, and drives the rotating rod 515 to rotate outside the rotating shaft 514, so that the mounting block B516 moves and drives the expansion plate 518 to move, so that the expansion plate 518 is expanded away from the outer tube 512 under the limiting action of the slider A517. After expanding to the size of the drilled anchor hole, the slider B526 is released, so that the spring 527 rebounds and drives the pin 528 to pass through the rectangular block 525 and the arc block 522 and be inserted into the socket of the vertical plate 524, so that the device can be fixed in the anchor hole, which can increase the contact between the device and the grouting body and increase the anchoring force of the device. The slurry flows into the drill bit 2 through the grouting port 3, and then flows from the drill bit 2 to the inside of the anchor hole, so that the slurry is gradually grouted upward from the bottom, making the grouting more uniform.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A grouting anchor, comprising an anchor body (1), characterized in that: A drill bit (2) is fixedly mounted at the bottom of the anchor rod body (1), a grouting port (3) is provided inside the anchor rod body (1), an adjustment mechanism (4) is provided outside the anchor rod body (1), and an expansion mechanism (5) is provided outside the adjustment mechanism (4); The unfolding mechanism (5) comprises an unfolding component (51) and a power component (52), wherein the power component (52) is arranged on the top of the unfolding component (51); The adjusting mechanism (4) comprises two threaded sleeves (41), the two threaded sleeves (41) are both threadedly mounted on the outside of the anchor rod body (1), a rotating cylinder (42) is fixedly mounted on the outside of the two threaded sleeves (41), a baffle (43) is fixedly mounted on the top of the rotating cylinder (42), and a fixing nut (44) is threadedly mounted on the outside of the anchor rod body (1); The unfolding assembly (51) comprises four limit bars (511), the four limit bars (511) are all slidably mounted inside the rotating drum (42), an outer tube (512) is fixedly mounted outside every two limit bars (511), four mounting blocks A (513) are fixedly mounted outside the outer tube (512), two rotating shafts (514) are rotatably mounted inside the four mounting blocks A (513), two rotating rods (515) are rotatably mounted outside the rotating shafts (514), a mounting block B (516) is rotatably mounted inside one end of the rotating rod (515) away from the rotating shafts (514), four sliding blocks A (517) are slidably mounted inside the baffle (43), and an unfolding plate (518) is fixedly mounted at the bottom of each of the four sliding blocks A (517); The power assembly (52) includes two connecting rods (521), the two connecting rods (521) are fixedly installed on the top of the outer tube (512), an arc block (522) is fixedly installed between the two connecting rods (521), a handle (523) is fixedly installed on the top of the arc block (522), a vertical plate (524) is fixedly installed on the top of the baffle (43), a rectangular block (525) is fixedly installed on the top of the baffle (43), a slider B (526) is slidably installed inside the baffle (43), a spring (527) is fixedly installed on the side of the slider B (526) away from the vertical plate (524), and a latch (528) is fixedly installed on the side of the slider B (526) away from the spring (527).

2. A grouting anchor according to claim 1, characterized in that: The fixing nut (44) is arranged on the top of the baffle (43), the anchor rod body (1) passes through the baffle (43), and a threaded hole is provided inside the threaded sleeve (41).

3. A grouting anchor according to claim 1, characterized in that: The expansion plate (518) is fixedly mounted on a side close to the limiting strip (511) and the mounting block B (516). The number of the outer tubes (512) is two, and the outer tubes (512) are slidably mounted on the outside of the rotating drum (42).

4. A grouting anchor according to claim 1, characterized in that: The vertical plate (524), the arc block (522), the rectangular block (525) and the corresponding positions of the latch (528) are all provided with insertion holes, the connecting rod (521) is slidably installed inside the baffle (43), and the end of the spring (527) away from the slider B (526) is fixedly installed on the baffle (43).

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