Improved pipe seam anchor rod

Abstract

The invention discloses an improved pipe seam anchor rod, and relates to the technical field of engineering support, the improved pipe seam anchor rod comprises a pipe seam anchor rod body, the left side of the pipe seam anchor rod body is provided with a conical connector, the right side of the pipe seam anchor rod body is provided with a connecting nut, the left side of the connecting nut is provided with a connecting rod, and the other end of the connecting rod is provided with a threaded rod; a first limiting plate is arranged on the outer surface of the threaded rod, an expansion structural part is arranged on the left side of the first limiting plate, two limiting grooves are symmetrically formed in the inner side of the pipe seam anchor rod body, two limiting blocks are symmetrically arranged on the outer surface of the first limiting plate, and a plurality of cushion blocks are annularly and evenly arranged on the outer surface of the conical connecting body. According to the improved pipe seam anchor rod, the base plate can be conveniently and stably installed, meanwhile, the anchoring force of the pipe seam anchor rod body can be further enhanced after the pipe seam anchor rod body is driven in, and the possibility that the pipe seam anchor rod body falls off is effectively avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of engineering support, and particularly relates to an improved pipe-slot bolt. Background Art

[0002] In the current geotechnical engineering field, the anchoring technology plays a crucial role. As a commonly used anchoring device, the pipe-slot bolt is widely used in many projects such as mine exploitation, tunnel construction, and slope protection.

[0003] The installation method of the traditional pipe-slot bolt is relatively single. Most of them only rely on the initial driving force to position the bolt, and it is difficult to flexibly adjust the anchoring force during the installation process. Once encountering complex geological changes, it is impossible to timely strengthen the anchoring effect of the bolt, resulting in the bolt being prone to loosening and falling off, seriously threatening the durability and safety of the project, and bringing certain adverse effects to the use process. To solve the deficiencies of the existing technology, we propose an improved pipe-slot bolt. Summary of the Invention

[0004] The main purpose of the present invention is to provide an improved pipe-slot bolt, which can effectively solve the problems in the background art.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0006] An improved pipe-slot bolt, including a pipe-slot bolt body. A conical connecting body is arranged on the left side of the pipe-slot bolt body. A connecting nut is arranged on the right side of the pipe-slot bolt body. A connecting rod is arranged on the left side of the connecting nut. The other end of the connecting rod is provided with a threaded rod. A first limiting plate is arranged on the outer surface of the threaded rod. An expansion structure member is arranged on the left side of the first limiting plate. Two limiting grooves are symmetrically opened on the inner side of the pipe-slot bolt body. Two limiting blocks are symmetrically arranged on the outer surface of the first limiting plate. A plurality of cushion blocks are evenly arranged in a ring on the outer surface of the conical connecting body. A fixing ring is arranged on the outer surface of the pipe-slot bolt body. A backing plate is arranged on the left side of the fixing ring. Two insertion grooves are symmetrically opened on one side surface of the backing plate. Two clamping grooves are symmetrically opened at the front and rear ends of the backing plate. Two insertion blocks are symmetrically arranged on the left side of the fixing ring. An inner groove is opened in the insertion block. Two groups of connecting plates are arranged in the inner groove. A first spring is arranged at the front end of the connecting plate. A second limiting plate is arranged in the inner groove. A clamping block is arranged at the front end of the second limiting plate. A plurality of groups of rectangular slots and a plurality of groups of movable grooves are symmetrically opened on the front and rear end surfaces of the pipe-slot bolt body. A fixing rod is arranged in the movable groove. A movable block is arranged on the outer surface of the fixing rod. An anti-slip plate is arranged at one end of the movable block. Two groups of second springs are arranged in the rectangular slot.

[0007] Preferably, the conical connector is welded to the left side of the pipe-slot bolt body, the connecting nut is threadedly connected to one end of the connecting rod, and the threaded rod is welded to the other end of the connecting rod.

[0008] Preferably, the first limiting plate is threadedly connected to the outer surface of the threaded rod, and the expansion structure is welded to the left side of the first limiting plate.

[0009] Preferably, the two limiting blocks are symmetrically welded to the outer surface of the first limiting plate, the limiting blocks are slidably connected in the limiting grooves, and the plurality of cushion blocks are evenly welded to the outer surface of the conical connector in a ring shape.

[0010] Preferably, the fixing ring is welded to the outer surface of the pipe-slot bolt body, the clamping groove communicates with the insertion groove, the two insertion blocks are symmetrically welded to the left side of the fixing ring, and the insertion blocks are inserted into the insertion groove.

[0011] Preferably, the connecting plate is welded in the inner groove, the first spring is detachably connected to the front end of the connecting plate, and the second limiting plate is slidably connected in the inner groove.

[0012] Preferably, the clamping block is welded to the front end of the second limiting plate, the left side of the clamping block is a slope, and the clamping block is clamped in the clamping groove.

[0013] Preferably, the fixing rod is welded in the movable groove, the movable block is rotatably connected to the outer surface of the fixing rod, the anti-slip plate is welded to one end of the movable block, and the second spring is detachably connected in the rectangular slot.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. For this improved pipe-slot bolt, efficient and portable operation is achieved in the installation process of the backing plate. Construction workers only need to simply sleeve the backing plate outside the pipe-slot bolt body and push it towards the fixing ring. Relying on the wonderful cooperation between the insertion block welded on one side of the fixing ring and the insertion groove opened on one side of the backing plate, as well as the automatic clamping mechanism composed of the first spring, the second limiting plate, and the clamping block, the installation of the backing plate can be completed quickly and stably. This greatly shortens the on-site construction time, improves construction efficiency, reduces the construction difficulty, reduces the high dependence on professional technicians, thereby reducing labor costs and enhancing the overall project benefits.

[0016] 2. For the improved pipe seam anchor, after the installation of the pad is completed and the pipe seam anchor body is driven into the pipe seam anchor body, the initial anchor force can be easily increased by tightening the connecting nut to one end of the connecting rod, which can quickly provide initial stability for the rock mass. Then, the connecting nut is further rotated, and the expansion structure is prompted to open the conical connector through the linkage of the connecting rod and the threaded rod and the movement of the first limit plate of the threaded transmission belt. This process makes full use of the synergy of the mechanical structure. The expansion of the conical connector drives the pad to adhere to the inner wall of the borehole, greatly increasing the friction force, effectively enhancing the anchoring force of the pipe seam anchor body, allowing it to take root firmly in a complex rock environment, ensuring the stability of the engineering structure, reducing maintenance costs, and having high practicality.

[0017] 3. For the improved pipe seam anchor, when the pipe seam anchor body is driven into the pre-drilled hole in the rock mass, the inner wall of the borehole presses the anti-slip plate, causing the anti-slip plate to automatically engage in the rectangular groove and compress the second spring at the same time. After the pipe seam anchor body is driven into place, the second spring pushes the anti-slip plate to fit tightly against the inner wall of the borehole by its own elastic force, which not only further enhances the anchoring force of the pipe seam anchor body, allowing it to take root more firmly in the rock mass, but also effectively avoids the risk of the pipe seam anchor body falling off under complex stress environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the internal structure of the pipe seam anchor body of the present invention;

[0020] Figure 3 The present invention Figure 2 Schematic diagram of the structure at A in the middle;

[0021] Figure 4 It is a schematic diagram of the connection structure between the fixing ring and the backing plate of the present invention;

[0022] Figure 5 It is a schematic diagram of the internal structure of the insertion block of the present invention;

[0023] Figure 6 It is a schematic diagram of the local structure of the surface of the pipe seam anchor body of the present invention.

[0024] In the figure: 1. Pipe seam anchor body; 2. Conical connector; 3. Connecting nut; 4. Connecting rod; 5. Threaded rod; 6. First limit plate; 7. Expansion structure; 8. Limit groove; 9. Limit block; 10. Pad; 11. Fixed ring; 12. Pad; 13. Insert groove; 14. Snap-in groove; 15. Insert block; 16. Inner groove; 17. Connecting plate; 18. First spring; 19. Second limit plate; 20. Snap-in block; 21. Rectangular slot; 22. Movable slot; 23. Fixed rod; 24. Movable block; 25. Anti-skid plate; 26. Second spring. Detailed implementation manners

[0025] To make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0026] Example 1, as shown in Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 An improved slotted pipe bolt, a fixing ring 11 is welded on the outer surface of the slotted pipe bolt body 1, a clamping groove 14 communicates with an insertion groove 13 inside, two insertion blocks 15 are symmetrically welded on the left side of the fixing ring 11, the insertion blocks 15 are inserted into the insertion groove 13, a connecting plate 17 is welded inside the inner groove 16, a first spring 18 is detachably connected to the front end of the connecting plate 17, a second limiting plate 19 is slidably connected inside the inner groove 16, a clamping block 20 is welded to the front end of the second limiting plate 19, the left side of the clamping block 20 is a slope, and the clamping block 20 is clamped with the clamping groove 14.

[0027] When installing the backing plate 12, the construction personnel only need to simply sleeved the backing plate 12 on the outer surface of the slotted pipe bolt body 1 and push it towards the fixing ring 11. Relying on the wonderful cooperation between the insertion block 15 welded on one side of the fixing ring 11 and the insertion groove 13 opened on one side of the backing plate 12, as well as the automatic clamping mechanism composed of the first spring 18, the second limiting plate 19 and the clamping block 20, the installation of the backing plate 12 can be completed quickly and stably.

[0028] Example 2, as shown in Figures 1-3 An improved slotted pipe bolt, a conical connecting body 2 is welded to the left side of the slotted pipe bolt body 1, a connecting nut 3 is threadedly connected to one end of a connecting rod 4, a threaded rod 5 is welded to the other end of the connecting rod 4, a first limiting plate 6 is threadedly connected to the outer surface of the threaded rod 5, an expanding structural member 7 is welded to the left side of the first limiting plate 6, two limiting blocks 9 are symmetrically welded to the outer surface of the first limiting plate 6, the limiting blocks 9 are slidably connected inside the limiting groove 8, and a plurality of cushion blocks 10 are evenly welded in a ring on the outer surface of the conical connecting body 2.

[0029] After driving the slotted pipe bolt body 1, only need to tighten the connecting nut 3 to one end of the connecting rod 4 to easily increase the initial anchoring force. Then further rotate the connecting nut 3. Through the linkage of the connecting rod 4 and the threaded rod 5 and the threaded transmission to drive the first limiting plate 6 to move, the expanding structural member 7 is urged to expand the conical connecting body 2. The expansion of the conical connecting body 2 drives the cushion blocks 10 to closely adhere to the inner wall of the drilling hole, greatly increasing the friction force and effectively enhancing the anchoring force of the slotted pipe bolt body 1.

[0030] Example 3, as shown in Figure 1 、 Figure 6As shown, an improved pipe seam anchor rod, a fixed rod 23 is welded in a movable groove 22, a movable block 24 is rotatably connected to the outer surface of the fixed rod 23, an anti-slip plate 25 is welded to one end of the movable block 24, and a second spring 26 is detachably connected to the rectangular slot 21.

[0031] During the process of driving the pipe seam anchor body 1 into the pre-drilled hole in the rock mass, the inner wall of the borehole presses the anti-slip plate 25, causing the anti-slip plate 25 to automatically engage in the rectangular groove 21 and compress the second spring 26 at the same time. After the pipe seam anchor body 1 is driven in, the second spring 26 pushes the anti-slip plate 25 to fit tightly against the inner wall of the borehole by its own elastic force, further enhancing the anchoring force of the pipe seam anchor body so that it can be more firmly rooted in the rock mass.

[0032] It should be noted that the present invention is an improved pipe seam anchor. When in use, before installing the pipe seam anchor body 1, the pad 12 is sleeved on the outer surface of the pipe seam anchor body 1 and pushed in the direction of the fixing ring 11 until it fits with the fixing ring 11. During the pushing process, the two insertion blocks 15 welded on one side of the fixing ring 11 will be respectively inserted into the insertion groove 13 opened on the surface of one side of the pad 12. After the insertion block 15 is inserted into the insertion groove 13 until the clamping block 20 contacts the inner wall of the insertion groove 13, the clamping block 20 will gradually retract into the inner groove 16 opened in the insertion block 15, and at the same time, it will drive the second limiting plate 19 to compress the first spring 18. When the insertion block 15 is fully inserted into the insertion groove 13, the clamping block 20 will move to align with the clamping groove 14. At this time, under the action of the elastic force of the first spring 18, the second limiting plate 19 and the clamping block 20 will be pushed to move, so that the clamping block 20 can be ejected from the clamping groove 14, thereby completing the installation of the pad 12.

[0033] After the installation of the pad 12 is completed, the pipe seam anchor body 1 is driven into the pre-drilled hole in the rock mass, and then the connecting nut 3 is screwed to one end of the connecting rod 4 and tightened to increase the initial anchoring force of the anchor, and then the connecting nut 3 is continued to be rotated to drive the connecting rod 4 to rotate, which can then drive the threaded rod 5 to rotate. Since the first limit plate 6 is threadedly connected to the threaded rod 5, the first limit plate 6 will be driven to move when the threaded rod 5 rotates, which can then drive the expansion structure 7 welded on one side of the first limit plate 6 to move. When the expansion structure 7 moves into the conical connector 2, it will expand and stretch the conical connector 2. At the same time, after the conical connector 2 expands, it will drive multiple pads 10 to make it close to the inner wall of the borehole, which can increase the friction with the inner wall of the borehole, and thus can enhance the anchoring force of the pipe seam anchor body 1.

[0034] During the process of driving the pipe-slot bolt body 1 into the hole pre-drilled in the rock mass, the inner wall of the drill hole will press the anti-slip plate 25, making it always engaged in the rectangular slot 21, and at the same time, the second spring 26 will be compressed. After the pipe-slot bolt body 1 is driven in, under the action of the elastic force of the second spring 26, the anti-slip plate 25 will be pushed towards the inner wall of the drill hole, making it always in close contact with the inner wall of the drill hole. This can further enhance the anchoring force of the pipe-slot bolt body 1 and prevent the pipe-slot bolt body 1 from falling off.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. An improved pipe seam anchor, comprising a pipe seam anchor body (1), characterized in that: A conical connector (2) is arranged on the left side of the pipe seam anchor body (1), a connecting nut (3) is arranged on the right side of the pipe seam anchor body (1), a connecting rod (4) is arranged on the left side of the connecting nut (3), a threaded rod (5) is arranged on the other end of the connecting rod (4), a first limiting plate (6) is arranged on the outer surface of the threaded rod (5), an expansion structure (7) is arranged on the left side of the first limiting plate (6), two limiting grooves (8) are symmetrically arranged on the inner side of the pipe seam anchor body (1), two limiting blocks (9) are symmetrically arranged on the outer surface of the first limiting plate (6), a plurality of pads (10) are evenly arranged in an annular shape on the outer surface of the conical connector (2), a fixing ring (11) is arranged on the outer surface of the pipe seam anchor body (1), a pad (12) is arranged on the left side of the fixing ring (11), and two insertion grooves (13) are symmetrically arranged on one side surface of the pad (12), The backing plate (12) is symmetrically provided with snap-fit ​​grooves (14) at both ends, and the left side of the fixing ring (11) is symmetrically provided with two insertion blocks (15). An inner groove (16) is provided in the insertion block (15). Two groups of connecting plates (17) are provided in the inner groove (16). A first spring (18) is provided at the front end of the connecting plate (17). A second limiting plate (19) is provided in the inner groove (16). A snap-fit ​​block (20) is provided at the front end of the second limiting plate (19). The front and rear end surfaces of the pipe seam anchor rod body (1) are symmetrically provided with a plurality of groups of rectangular slots (21) and a plurality of groups of movable slots (22). A fixing rod (23) is provided in the movable slot (22). A movable block (24) is provided on the outer surface of the fixing rod (23). An anti-slip plate (25) is provided at one end of the movable block (24). Two groups of second springs (26) are provided in the rectangular slot (21).

2. The improved pipe seam anchor according to claim 1, characterized in that: The conical connector (2) is welded to the left side of the pipe seam anchor body (1), the connecting nut (3) is threadedly connected to one end of the connecting rod (4), and the threaded rod (5) is welded to the other end of the connecting rod (4).

3. The improved pipe seam anchor according to claim 1, characterized in that: The first limiting plate (6) is threadedly connected to the outer surface of the threaded rod (5), and the expansion structure (7) is welded to the left side of the first limiting plate (6).

4. The improved pipe seam anchor according to claim 1, characterized in that: The two limit blocks (9) are symmetrically welded to the outer surface of the first limit plate (6), the limit blocks (9) are slidably connected to the limit groove (8), and the plurality of cushion blocks (10) are uniformly welded to the outer surface of the conical connector (2) in an annular shape.

5. The improved pipe seam anchor according to claim 1, characterized in that: The fixing ring (11) is welded to the outer surface of the pipe seam anchor body (1); the clamping groove (14) is communicated with the insertion groove (13); the two insertion blocks (15) are symmetrically welded to the left side of the fixing ring (11); and the insertion blocks (15) are plugged into the insertion groove (13).

6. The improved pipe seam anchor according to claim 1, characterized in that: The connecting plate (17) is welded to the inner groove (16), the first spring (18) is detachably connected to the front end of the connecting plate (17), and the second limiting plate (19) is slidably connected to the inner groove (16).

7. The improved pipe seam anchor according to claim 1, characterized in that: The clamping block (20) is welded to the front end of the second limiting plate (19), the left side of the clamping block (20) is an inclined surface, and the clamping block (20) is clamped to the clamping groove (14).

8. The improved pipe seam anchor according to claim 1, characterized in that: The fixed rod (23) is welded in the movable groove (22), the movable block (24) is rotatably connected to the outer surface of the fixed rod (23), the anti-slip plate (25) is welded to one end of the movable block (24), and the second spring (26) is detachably connected to the rectangular slot (21).

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