Self-tapping anchor bolt for segment repair installation fixation

Abstract

The utility model relates to self -drilling anchor bolt technical field, concretely is a kind of self -drilling anchor bolt for segment repair installation and fixation, including anchor bolt main part, hexagonal rotating block, rotating column, extension stud and adjusting device, adjusting device is equipped on anchor bolt main part, adjusting device includes limit slot, limit slot is opened in the inner wall of anchor bolt main part, the surface fixedly connected with slider of extension stud, slider and the inner wall sliding connection of limit slot.The utility model, by setting adjusting device, it is convenient to carry out length adjustment to anchor bolt main part, avoid the length setting of existing anchor bolt to be fixed type, when operating, the thickness of different base material exists difference, if anchor bolt length is fixed, when base material is thin, anchor bolt can penetrate base material, lead to not firm installation, even damage the structure or object on the back of base material, when base material is thick, anchor bolt embeds depth is not enough, cannot provide enough holding force, influence connection stability, effectively improve the ease of use of equipment for this.

Description

Technical Field

[0001] This utility model relates to the field of self-tapping anchor technology, and in particular to a self-tapping anchor used for the repair and installation of tunnel segments. Background Technology

[0002] Self-tapping anchors are a type of mechanical anchor that uses its own hard threads to cut and embed into the concrete hole wall to form a mechanical locking key. They achieve anchoring by forming a threaded groove in the concrete hole wall through the hard threads of the anchor. No additional expansion or chemical adhesive is required during installation; they rely solely on the mechanical locking force.

[0003] Existing technologies, such as CN207122010U, disclose an insulation anchor for fixing external wall insulation formwork. The key technical features include an anchor body, an anchor cap, and barbs. The anchor cap is fixed to the top of the anchor body, and the barbs are positioned opposite each other on both sides of the anchor body, tilting towards the direction of the anchor cap. The barbs are arranged sequentially along the length of the anchor body, consisting of first-order barbs, second-order barbs, and third-order barbs. The first-order barbs are located on the anchor body near the anchor cap, the third-order barbs are located at the end of the anchor body away from the anchor cap, and the second-order barbs are located between the first-order and third-order barbs. The density of the third-order barbs is greater than that of the first-order barbs, which in turn is greater than that of the second-order barbs. This arrangement of barbs with different densities ensures stable fixing of the insulation anchor in various structures.

[0004] To address the issue of adjusting anchor bolt length in existing equipment in recent years, which is currently set to a fixed length, when different substrates have varying thicknesses during operation, if the anchor bolt length is fixed, the anchor bolt may penetrate the substrate when the substrate is thin, resulting in insecure installation or even damage to the structure or object behind the substrate. When the substrate is thick, the anchor bolt may not be buried deep enough to provide sufficient holding force, affecting connection stability. Therefore, improvements are needed. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing anchor bolts with fixed lengths. When working on different substrates with varying thicknesses, if the anchor bolt length is fixed, the anchor bolt may penetrate the substrate when the substrate is thin, resulting in insecure installation or even damage to the structure or object on the back of the substrate. When the substrate is thick, the anchor bolt embedment depth is insufficient, failing to provide enough holding force and affecting connection stability. Therefore, this invention proposes a self-tapping anchor bolt for fixing and installing tunnel segments.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a self-tapping anchor for segment repair and installation, comprising an anchor body, a hexagonal rotating block, a rotating post, an extension stud, and an adjustment device. The hexagonal rotating block is fixedly connected to the surface of the anchor body. The rotating post is disposed on the inner wall of the anchor body. The extension stud is threadedly connected to the surface of the rotating post. The inner wall of the anchor body is provided with a rotating groove. The rotating groove is formed in the inner wall of the anchor body. A rotating ring is fixedly connected to the surface of the rotating post. The rotating ring is rotatably connected to the inner wall of the rotating groove. The anchor body is provided with an adjustment device, which includes a limiting groove formed in the inner wall of the anchor body. A slider is fixedly connected to the surface of the extension stud. The slider is slidably connected to the inner wall of the limiting groove.

[0007] Furthermore, the surface of the rotating column is provided with slots, and the number of slots is four sets arranged in a circular array. The inner wall of the slots is rotatably connected to a rotating rod.

[0008] Furthermore, a torsion spring is fixedly connected to the inner wall of the slot. There are two sets of torsion springs arranged symmetrically. The torsion springs are sleeved and connected to the surface of the rotating rod. A rotating plate is fixedly connected to the end of the torsion spring away from the slot.

[0009] Furthermore, the rotating plate is rotatably connected to the surface of the rotating rod, and the surface of the rotating plate is fixedly connected with a plug rod, and the number of plug rods is multiple.

[0010] Furthermore, the inner wall of the anchor bolt body is provided with positioning holes, and there are multiple sets of positioning holes. The insertion rod is inserted and connected to the inner wall of the positioning hole. A stabilizing spring is fixedly connected to the inner wall of the rotating column. A connecting column is fixedly connected to the end of the stabilizing spring away from the rotating column. A rotating block is fixedly connected to the surface of the connecting column.

[0011] Furthermore, a rotating seat is fixedly connected to the surface of the connecting column. There are four sets of rotating seats arranged in a circular array. A rotating shaft is rotatably connected to the inner wall of the rotating plate. A connecting rod is rotatably connected to the surface of the rotating shaft. The end of the connecting rod away from the rotating shaft is rotatably connected to the surface of the rotating seat.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, by setting an adjustment device, it is easier to use the extended stud when adjusting the length of the anchor bolt body. Pressing the rotating block causes the stable spring to deform and compress under force. Then the connecting column is pressed down, so that the connecting column pulls the rotating plate through the connecting rod, causing the rotating plate to rotate stably along the axis of the rotating rod. This causes the torsion spring to deform under force. Then the rotating plate rotates to the inner wall of the slot and fits against its inner wall. Then the rotating plate drives the insertion rod to leave the inner wall of the positioning hole.

[0013] 2. In this utility model, the rotating block contacts the surface of the rotating column, and then the rotating block is pressed to drive the rotating column to rotate. Subsequently, the rotating column rotates stably along the inner wall of the rotating groove, so that the threaded groove at the lower end of the rotating column and the inner wall of the extension stud are threadedly driven, causing the extension stud to slide along the inner wall of the limiting groove. When adjusted to a suitable position, the rotating block is released, so that the stabilizing spring and torsion spring are released and deformed and rebound. Then the rotating plate rotates and resets along the axis of the rotating rod. Then the rotating plate inserts the insertion rod into the positioning hole at the corresponding position, and the position of the extension stud is fixed. By setting an adjustment device, it is convenient to adjust the length of the anchor bolt body, avoiding the existing fixed anchor bolt length. When the thickness of different base materials varies during operation, if the anchor bolt length is fixed, when the base material is thin, the anchor bolt may penetrate the base material, resulting in insecure installation or even damage to the structure or object on the back of the base material. When the base material is thick, the anchor bolt embedment depth is insufficient, and it cannot provide sufficient holding force, affecting the connection stability. This effectively improves the ease of use of the equipment. Attached Figure Description

[0014] Figure 1 A three-dimensional structural diagram of a self-tapping anchor for segment repair and installation is provided for this utility model. Figure 2 This utility model provides a schematic diagram of the main structure of the adjustment device in a self-tapping anchor used for segment repair, installation, and fixing. Figure 3 This utility model proposes a self-tapping anchor for segment repair and installation fixation. Figure 2 Schematic diagram at point A; Figure 4 This utility model proposes a self-tapping anchor for segment repair and installation fixation. Figure 3 Schematic diagram at point B; Figure 5 This utility model proposes a self-tapping anchor transfer block for segment repair, installation and fixation, as shown in the main structure diagram; Figure 6 This utility model proposes a self-tapping anchor for segment repair and installation fixation. Figure 5 A schematic diagram at point C.

[0015] Legend: 1. Anchor bolt body; 2. Hexagonal rotating block; 3. Rotating column; 4. Extension stud; 5. Adjusting device; 51. Rotating groove; 52. Rotating ring; 53. Limiting groove; 54. Sliding block; 55. Slot; 56. Rotating rod; 57. Torsion spring; 58. Rotating plate; 59. Insert rod; 510. Positioning hole; 511. Stabilizing spring; 512. Connecting column; 513. Rotating block; 514. Rotating seat; 515. Rotating shaft; 516. Connecting rod. Detailed Implementation

[0016] Please see Figures 1-6 This utility model provides a technical solution: a self-tapping anchor for repairing and fixing tunnel segments, comprising an anchor body 1, a hexagonal rotating block 2, a rotating post 3, an extension stud 4, and an adjustment device 5. The hexagonal rotating block 2 is fixedly connected to the surface of the anchor body 1. The rotating post 3 is disposed on the inner wall of the anchor body 1. The extension stud 4 is threadedly connected to the surface of the rotating post 3. The inner wall of the anchor body 1 is provided with a rotating groove 51. The rotating groove 51 is opened in the inner wall of the anchor body 1. A rotating ring 52 is fixedly connected to the surface of the rotating post 3. The rotating ring 52 is rotatably connected to the inner wall of the rotating groove 51. The anchor body 1 is provided with an adjustment device 5.

[0017] The specific settings and functions of the adjustment device 5 will be explained in detail below.

[0018] In this embodiment: the adjusting device 5 includes a limiting groove 53, which is formed on the inner wall of the anchor bolt body 1. A slider 54 is fixedly connected to the surface of the extension stud 4, and the slider 54 is slidably connected to the inner wall of the limiting groove 53.

[0019] The effects achieved by the above components are as follows: by setting the connection between the rotating ring 52 and the rotating groove 51, it is easy to make the rotating post 3 rotate stably on the inner wall of the anchor bolt body 1, and to prevent the rotating post 3 from falling off. The limiting groove 53 is set to prevent the extension stud 4 from separating from the inner wall of the anchor bolt body 1.

[0020] Specifically, the surface of the rotating column 3 is provided with slots 55, and there are four sets of slots 55 arranged in a circular array. The inner wall of the slots 55 is rotatably connected to a rotating rod 56.

[0021] Specifically, a torsion spring 57 is fixedly connected to the inner wall of the slot 55. There are two sets of torsion springs 57 arranged symmetrically. The torsion springs 57 are sleeved and connected to the surface of the rotating rod 56. A rotating plate 58 is fixedly connected to the end of the torsion spring 57 away from the slot 55.

[0022] The effect achieved by the above components is that, by setting the torsion spring 57, after the rotating plate 58 is unrestrained, the elastic force of the torsion spring 57 can drive the rotating plate 58 to rotate stably and reset along the axis of the rotating rod 56.

[0023] Specifically, the surfaces of the rotating plate 58 and the rotating rod 56 are rotatably connected, and the surface of the rotating plate 58 is fixedly connected with the insertion rod 59, and there are multiple sets of insertion rods 59.

[0024] Specifically, the inner wall of the anchor bolt body 1 is provided with positioning holes 510, and there are multiple sets of positioning holes 510. The insertion rod 59 is inserted and connected to the inner wall of the positioning hole 510.

[0025] The effect achieved by the above components is that by setting the connection between the insertion rod 59 and the positioning hole 510, it is convenient to constrain the rotating post 3 and prevent the extension stud 4 from rotating when the rotating post 3 rotates.

[0026] Specifically, a stabilizing spring 511 is fixedly connected to the inner wall of the rotating column 3, and a connecting column 512 is fixedly connected to the end of the stabilizing spring 511 away from the rotating column 3. A rotating block 513 is fixedly connected to the surface of the connecting column 512.

[0027] The effect achieved by the above components is that by setting a stabilizing spring 511, after the rotating block 513 is unrestrained, the elastic force of the stabilizing spring 511 can push the connecting column 512 to reset.

[0028] Specifically, a rotating seat 514 is fixedly connected to the surface of the connecting column 512. There are four sets of rotating seats 514 arranged in a circular array. A rotating shaft 515 is rotatably connected to the inner wall of the rotating plate 58. A connecting rod 516 is rotatably connected to the surface of the rotating shaft 515. The end of the connecting rod 516 away from the rotating shaft 515 is rotatably connected to the surface of the rotating seat 514.

[0029] The effect achieved by the above components is that by setting the rotating seat 514 and the rotating shaft 515, when the connecting column 512 drives the connecting rod 516 to move, the two ends of the connecting rod 516 can be adjusted at a stable angle along its axis, avoiding the fixed ends of the connecting rod 516, which would restrict movement.

[0030] Working principle: By setting the adjustment device 5, it is more convenient to use the extension stud 4 when adjusting the length of the anchor bolt body 1. Pressing the rotating block 513 causes the stabilizing spring 511 to deform and compress under force. Then the connecting column 512 is pressed down, so that the connecting column 512 pulls the rotating plate 58 through the connecting rod 516, causing the rotating plate 58 to rotate stably along the axis of the rotating rod 56. This causes the torsion spring 57 to deform under force. Then the rotating plate 58 rotates to the inner wall of the slot 55 and fits against its inner wall. Then the rotating plate 58 drives the insertion rod 59 to leave the inner wall of the positioning hole 510.

[0031] Then, the rotating block 513 contacts the surface of the rotating column 3, and pressing the rotating block 513 causes it to rotate, which in turn drives the rotating column 3 to rotate. Subsequently, the rotating column 3 rotates stably along the inner wall of the rotating groove 51, causing the threaded groove at the lower end of the rotating column 3 to engage in threaded transmission with the inner wall of the extension stud 4, which in turn causes the extension stud 4 to slide along the inner wall of the limiting groove 53. After adjusting to the appropriate position, the rotating block 513 is released, causing the stabilizing spring 511 and the torsion spring 57 to lose their restraint and deform and rebound. Then, the rotating plate 58 rotates and resets along the axis of the rotating rod 56, and then the rotating plate 58 inserts the insertion rod 59 into the corresponding position. Within the positioning hole 510, the extended stud 4 is then fixed in position. By setting the adjustment device 5, the length of the anchor body 1 can be easily adjusted, avoiding the existing fixed anchor length. When working, different substrates have different thicknesses. If the anchor length is fixed, when the substrate is thin, the anchor may penetrate the substrate, resulting in insecure installation or even damage to the structure or object on the back of the substrate. When the substrate is thick, the anchor embedment depth is insufficient, and it cannot provide enough holding force, affecting the connection stability. This effectively improves the ease of use of the equipment.

Claims

1. A self-tapping anchor for fixing and installing tunnel segments during repair, comprising an anchor body (1), a hexagonal rotating block (2), a rotating post (3), an extension stud (4), and an adjusting device (5), characterized in that: The hexagonal rotating block (2) is fixedly connected to the surface of the anchor bolt body (1). The rotating post (3) is set on the inner wall of the anchor bolt body (1). The extension stud (4) is threaded to the surface of the rotating post (3). The inner wall of the anchor bolt body (1) is provided with a rotating groove (51). The rotating groove (51) is opened on the inner wall of the anchor bolt body (1). The rotating post (3) is fixedly connected with a rotating ring (52). The rotating ring (52) is rotatably connected to the inner wall of the rotating groove (51). The anchor bolt body (1) is provided with an adjusting device (5). The adjusting device (5) includes a limiting groove (53). The limiting groove (53) is opened on the inner wall of the anchor bolt body (1). The extension stud (4) is fixedly connected with a slider (54). The slider (54) is slidably connected to the inner wall of the limiting groove (53).

2. The self-tapping anchor for segment repair and installation as described in claim 1, characterized in that: The surface of the rotating column (3) is provided with slots (55), and the number of slots (55) is four sets and arranged in a ring array. The inner wall of the slots (55) is rotatably connected to a rotating rod (56).

3. A self-tapping anchor for segment repair and installation as described in claim 2, characterized in that: The inner wall of the slot (55) is fixedly connected with a torsion spring (57). There are two sets of torsion springs (57) arranged symmetrically. The torsion springs (57) are sleeved and connected to the surface of the rotating rod (56). The end of the torsion spring (57) away from the slot (55) is fixedly connected with a rotating plate (58).

4. A self-tapping anchor for segment repair and installation as described in claim 3, characterized in that: The rotating plate (58) is rotatably connected to the surface of the rotating rod (56), and the surface of the rotating plate (58) is fixedly connected with a plug rod (59), and the number of plug rods (59) is multiple.

5. A self-tapping anchor for segment repair and installation as described in claim 4, characterized in that: The inner wall of the anchor body (1) is provided with positioning holes (510), and there are multiple sets of positioning holes (510). The insertion rod (59) is inserted and connected to the inner wall of the positioning hole (510). A stabilizing spring (511) is fixedly connected to the inner wall of the rotating column (3). A connecting column (512) is fixedly connected to the end of the stabilizing spring (511) away from the rotating column (3). A rotating block (513) is fixedly connected to the surface of the connecting column (512).

6. A self-tapping anchor for segment repair and installation as described in claim 5, characterized in that: The surface of the connecting column (512) is fixedly connected to a rotating seat (514). There are four sets of rotating seats (514) arranged in a circular array. The inner wall of the rotating plate (58) is rotatably connected to a rotating shaft (515). The surface of the rotating shaft (515) is rotatably connected to a connecting rod (516). The end of the connecting rod (516) away from the rotating shaft (515) is rotatably connected to the surface of the rotating seat (514).

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