Anchoring device and connecting device for FRP anchor rod

Abstract

The utility model relates to the field of engineering construction equipment, in particular to an anchoring device and a connecting device for an FRP anchor rod. The anchoring device comprises an anchor rod and an anchor head, and the anchor head comprises a locking connecting column; a butt joint hole is formed in the locking connecting column in a penetrating mode. A plurality of groups of first limiting blocks and a plurality of groups of second limiting blocks are symmetrically arranged on the inner wall of the butt joint hole, and each group of limiting blocks can be respectively clamped with the outer wall of the anchor rod; the connecting device comprises a plurality of anchor rods and locking connecting columns, every two anchor rods are connected through one locking connecting column, and the two anchor rods are located on the two sides of the partition plate respectively. The FRP anchor rod can be fastened through the locking connecting column and is not prone to loosening, so that the anchoring effect of the FRP anchor rod is improved, and the service life of the FRP anchor rod is prolonged; the locking connecting column can be used as a connecting fastener for connecting a plurality of anchor rods, the required anchor rods are connected through the locking connecting column according to the punching depth, and convenience and practicability are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to engineering construction equipment field, concretely is a kind of anchoring device and connecting device for FRP anchor rod. BACKGROUND

[0002] Glass steel (FRP) anchor rod has the advantages of light weight, high strength, corrosion resistance, etc., and is a widely used anchoring material in civil engineering, geotechnical engineering and other fields, used for foundation reinforcement, rock support, etc. However, the existing anchoring or connecting device for FRP anchor rod has some problems, for example, the FRP anchor rod and the anchoring or connecting structure are connected by simple methods such as welding, bonding or threaded connection, etc. Due to the lack of fasteners in the anchoring or connecting structure, the connection between the anchoring or connecting structure and the FRP anchor rod is not firm enough, thereby affecting the anchoring effect and service life of the FRP anchor rod, and it is easy to loosen or fall off after long-term use. Therefore, the utility model provides an anchoring device for FRP anchor rod. SUMMARY

[0003] In view of the above technical deficiencies, the purpose of the utility model is to provide an anchoring device for FRP anchor rod that can be fastened, to solve the problems pointed out in the above background art.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme:

[0005] The utility model provides an anchoring device for FRP anchor rod, characterized by comprising an anchor rod and an anchor head, the anchor head comprises a locking connecting column;

[0006] A butt joint hole is formed through the locking connecting column, and the end of the anchor rod extends into the butt joint hole and is movably connected with the locking connecting column.

[0007] A plurality of groups of first limiting blocks and a plurality of groups of second limiting blocks are symmetrically arranged on the inner wall of the butt joint hole, the first limiting blocks and the second limiting blocks are arranged on the inner wall of the butt joint hole by means of snap springs respectively, and the first limiting blocks and the second limiting blocks can be clamped with the outer wall of the anchor rod respectively.

[0008] As a preferred scheme, the number of each group of first limiting blocks and each group of second limiting blocks is 2-4.

[0009] As a preferred scheme, the angle between the first limiting blocks and the second limiting blocks and the inner wall of the butt joint hole is 5-45° respectively.

[0010] As a preferred scheme, the inner diameter of the butt joint hole is greater than the outer diameter of the anchor rod.

[0011] As a preferred scheme, a partition plate is arranged in the docking hole, the partition plate is arranged between the first limiting block and the second limiting block, and the anchor rod end abuts on a side wall of the partition plate.

[0012] As a preferred scheme, the anchor rod is a threaded straight rod structure, and the first limiting block clamping surface and the second limiting block clamping surface are threaded surfaces matched with threads on the anchor rod.

[0013] As a preferred scheme, the anchor head further comprises a hollow conical anchor head block, the conical anchor head block is threadedly connected with one side of the locking connecting column close to the second limiting block;

[0014] A threaded non-through hole is formed in a side of the conical anchor head block away from the tip;

[0015] An external thread matched with the threaded non-through hole is arranged on an outer wall of the locking connecting column, and an end of the locking connecting column is connected with the conical anchor head block through the external thread and the threaded non-through hole.

[0016] As a preferred scheme, a grouting channel along the length direction of the anchor rod is arranged through the anchor rod;

[0017] The partition plate is provided with a first through hole with an inner diameter equal to that of the grouting channel;

[0018] A second through hole with an inner diameter equal to that of the grouting channel is arranged through the conical anchor head block along the length direction of the conical anchor head block, and the anchor rod is communicated with the conical anchor head block through the grouting channel, the first through hole and the second through hole.

[0019] As a preferred scheme, a pad and an anchor device are sequentially sleeved on the tail of the anchor rod, and the pad and the anchor device are threadedly connected with the anchor rod.

[0020] The utility model also provides a connecting device for FRP anchor rod, including a plurality of anchor rod and locking connecting column, between every two anchor rod is connected through a locking connecting column, two anchor rod is located two sides of partition plate respectively.

[0021] The utility model has the advantages of:

[0022] The utility model provides a kind of anchoring device for FRP anchor rod, the anchoring device includes locking connecting column, by utilizing locking connecting column is connected with other components, fastening and not easy to loosen;By utilizing locking connecting column and butt joint hole, clasp spring and limit block are connected with FRP anchor rod, FRP anchor rod can be fastened and not easy to loosen, avoid the situation that loosening or falling off can easily occur after long-term use, to improve the anchoring effect and service life of FRP anchor rod.In addition, in the utility model, locking connecting column can not only be part of anchoring device, but also as the connecting fastener of several anchor rods, several anchor rods are connected together by locking connecting column, form a stable anchoring system.

[0023] (1) The utility model also provides a kind of connecting device for FRP anchor rod, including several anchor rods and locking connecting column, and one locking connecting column is connected between every two anchor rods.Locking connecting column is part of anchoring device, and also as the connecting fastener of several anchor rods and part of connecting device, function is more, can be connected according to the depth of punching Required anchor rod using locking connecting column, convenient and practical;Several anchor rods are connected together by locking connecting column, form stable anchoring system, can provide stronger support force under various complex geological conditions. DRAWINGS

[0024] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the embodiment or prior art description will be simply introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor under the premise of the drawings.

[0025] Figure 1 It is the structure schematic view of the anchor head of the utility model;

[0026] Figure 2 It is the structure schematic view of locking connecting column of the utility model;

[0027] Figure 3 It is the structure schematic view of conical anchor head block of the utility model;

[0028] Figure 4 It is the internal longitudinal cutting structure schematic view of the anchor head of the utility model;

[0029] Figure 5 It is the structure schematic view of a kind of anchoring device for FRP anchor rod of the utility model;

[0030] Figure 6 It is the structure schematic view of a kind of connecting device for FRP anchor rod of the utility model.

[0031] 1- anchor rod, 2- anchor head, 3- anchor device, 4- backing plate, 11- grouting channel, 21- locking connecting column, 22- conical anchor head block, 23- butt joint hole, 201- external thread, 202- circlip, 2031- first limiting block, 2032- second limiting block, 204- partition plate. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] It should be noted that all directional indication terms "upper", "bottom", "inner", "outer" and the like in the embodiments of the present application indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application, and are only used to explain the relative position relationship, movement condition and the like between the components in a certain specific posture, if the specific posture changes, the directional indication also changes accordingly.

[0034] The utility model provides a kind of anchoring device for FRP anchor rod, including anchor rod and anchor head, the anchor head includes locking connecting column;Through the locking connecting column, docking hole is provided, the anchor rod end extends into the docking hole and is movably connected with the locking connecting column;Symmetrically set up on the inner wall of the docking hole, a plurality of first limit blocks and a plurality of second limit blocks, the number of each limit block is 2-4, the first limit block and the second limit block are respectively set on the inner wall of the docking hole by snap spring, the first limit block and the second limit block can be respectively connected with the anchor rod outer wall;The utility model further provides a kind of connecting device for FRP anchor rod, including a plurality of the anchor rod and locking connecting column, between every two the anchor rod is connected by a locking connecting column, and two the anchor rod is located on the both sides of the partition plate.Compared with the anchor head device of prior art, the anchoring device provided by the utility model can fasten FRP anchor rod and is not prone to loosening, so as to improve the anchoring effect and service life of FRP anchor rod;Locking connecting column can not only be used as part of anchoring device, but also be used as connecting fastener for connecting a plurality of anchor rods, can connect the required a plurality of anchor rods by locking connecting column according to the depth of punching, and it is convenient and practical;A plurality of anchor rods are connected together by locking connecting column, form a stable anchoring system, and can provide stronger support force under various complex geological conditions.The problem that the connection between anchoring or connecting structure and FRP anchor rod is not firm enough due to lack of fastener in anchoring or connecting device in prior art, and is prone to loosening or falling off is solved.

[0035] As Figures 1-6 shown, a kind of anchoring device for FRP anchor rod, including anchor rod 1 and anchor head 2, the anchor head 2 includes locking connecting column 21;Anchor rod 1 is the main component of anchoring device for FRP anchor rod;Anchor head 2 is the core part of anchoring device, for fixing and connecting anchor rod, with enough strength and stability to withstand the tensile force from soil or rock;Locking connecting column 21 is part of anchor head 2, can be connected with other components by locking connecting column 21, the design of locking connecting column 21 makes that device has stronger connectivity and stability;

[0036] Through the locking connecting column 21, docking hole 23 is provided, the anchor rod 1 end extends into the docking hole 23 and is movably connected with the locking connecting column 21;Docking hole 23 is the cavity inside locking connecting column 21, docking hole 23 provides the channel for the connection of anchor rod 1 and anchor head 2, partition plate 204 is arranged in docking hole 23;

[0037] The inner wall of the butt joint hole 23 is symmetrically provided with three groups of first limiting blocks 2031 and three groups of second limiting blocks 2032, each group of limiting blocks has two limiting blocks, and the two limiting blocks are correspondingly arranged, and the connecting line between the two limiting blocks is on the diameter of the butt joint hole 23; the limiting blocks serve to fix and limit the position of the anchor rod 1 in the butt joint hole 23, preventing the anchor rod 1 from falling off or loosening;

[0038] The first limiting block 2031 and the second limiting block 2032 are respectively arranged on the inner wall of the butt joint hole 23 by means of the clip spring 202; one end of the clip spring 202 is fixedly connected with the inclined surface of the first limiting block 2031, the other end of the clip spring 202 is fixedly connected with the inner wall of the butt joint hole 23, the angle between the inclined surface of the first limiting block 2031 and the inner wall of the butt joint hole 23 is 45°, and the angle is towards the inside of the butt joint hole 23; the arrangement mode of the second limiting block 2032 is vertically axisymmetric with the arrangement mode of the first limiting block 2031; the clip spring 202 is a kind of elastic element, one end of the clip spring is fixedly connected with the inclined surface of the limiting block, and the other end is fixedly connected with the inner wall of the butt joint hole 23, so as to ensure the stable position of the limiting block, and the clip spring 202 can limit the movement of the limiting block.

[0039] The first limiting block 2031 and the second limiting block 2032 can be respectively clamped with the outer wall of the anchor rod 1; when the limiting blocks are clamped with the anchor rod 1, the position of the anchor rod 1 is fixed and not easy to loosen, thereby enhancing the stability of the whole device.

[0040] In use, in the process of inserting the anchor rod 1 into the locking connecting column 21 through the butt joint hole 23, the clip spring 202 is extruded to drive the limiting block 203, when the anchor rod 1 stops inserting, the limiting block 203 is clamped with the outer wall of the anchor rod 1, so as to ensure that the position of the anchor rod 1 is fixed and not easy to loosen; when it is needed to drill holes on the surface of the reinforced structure, the anchor head 2 is fixedly connected with the anchor rod 1 and is inserted into the position where the holes are needed.

[0041] In the embodiment, the angle between the inclined surface of the first limiting block 2031 and the inner wall of the butt joint hole 23 and the angle between the inclined surface of the second limiting block 2032 and the inner wall of the butt joint hole 23 are 5-45°; before the anchor rod 1 is connected with the butt joint hole 23 by means of the first limiting block 2031, the angle between the inclined surface of the first limiting block 2031 and the inner wall of the butt joint hole 23 is 45°, and after the anchor rod 1 is connected with the butt joint hole 23 by means of the first limiting block 2031, the angle between the inclined surface of the first limiting block 2031 and the inner wall of the butt joint hole 23 is 5°.

[0042] In the embodiment, the inner diameter of the docking hole 23 is greater than the outer diameter of the anchor rod 1, so that the anchor rod 1 can be smoothly inserted into the docking hole 23; before the anchor rod 1 is connected with the docking hole 23, the distance between the two symmetrically arranged limiting blocks is less than the outer diameter of the anchor rod 1, and after the anchor rod 1 is connected with the docking hole 23, the distance between the two symmetrically arranged limiting blocks is equal to the outer diameter of the anchor rod 1.

[0043] In the embodiment, the docking hole 23 is provided with a partition plate 204, the partition plate is arranged between the first limiting block 2031 and the second limiting block 2032, and the end of the anchor rod 1 abuts against the side wall of the partition plate 204; the partition plate 204 is used for equally dividing the internal space of the docking hole 23; when the anchor rod is impacted, the impact on the conical anchor head block 22 is reduced due to the existence of the partition plate 204, which is beneficial to prolong the anchoring effect of the anchor head 2.

[0044] In the embodiment, the anchor rod 1 is a threaded straight rod structure, and the clamping faces of the first limiting block 2031 and the second limiting block 2032 are threaded faces matched with the threads on the anchor rod 1; the anchor rod 1 adopts a threaded straight rod structure, so that the threaded faces of the limiting blocks and the threads on the anchor rod 1 can be clamped, and the connection strength and stability between the anchor rod 1 and the locking connecting column 21 are strengthened.

[0045] In the embodiment, the anchor head 2 further comprises a hollow conical anchor head block 22, one end of the conical anchor head block 22 is threadedly connected with the locking connecting column 21; the conical anchor head block 22 is also a part of the anchor head 2, and the design of the conical anchor head block 22 can increase the contact area of the anchor head 2 with soil or rock, which is helpful to increase the anchoring force of the anchor head in the soil or rock and improve the anchoring effect. Meanwhile, the conical anchor head block 22 can be conveniently installed and disassembled through the thread connection with the locking connecting column 21.

[0046] In the embodiment, a threaded hole is formed in the side of the conical anchor head block 22 away from the tip; an external thread 201 matched with the threaded hole is arranged on the outer wall of the locking connecting column 21, the locking connecting column 21 has two ends, and one end of the locking connecting column 21 is connected with the conical anchor head block 22 through the external thread 201 and the threaded hole; the threaded connection mode is convenient for separating and disassembling the conical anchor head block 22 and the locking connecting column 21.

[0047] In this embodiment, a grouting channel 11 is provided along the length of the anchor rod 1; a first through hole and a second through hole are respectively provided in the partition plate 204 and the conical anchor head block 22, and the diameters of the first and second through holes are equal to that of the grouting channel 11; the anchor rod 1 is in communication with the conical anchor head block 22 through the grouting channel 11, the first through hole and the second through hole; the grouting channel 11 is a hole along the length of the anchor rod 1, the second through hole is a hole along the length of the conical anchor head block 22, and the grouting channel 11, the first through hole and the second through hole are used for injecting grouting materials such as cement slurry and mortar, etc., which form a consolidated body around the anchor rod 1, increase the friction between the anchor rod 1 and the soil or rock, and improve the anchoring effect.

[0048] In this embodiment, the tail end of the anchor rod 1 is sequentially sleeved with a backing plate 4 and an anchor device 3, and the backing plate 4 and the anchor device 3 are both threadedly connected with the anchor rod 1.

[0049] The anchor device 3 is a device for fixing and locking the anchor rod 1, which is threadedly connected with the anchor rod 1 to prevent the anchor rod from loosening or falling off; a third through hole is provided in the anchor device 3, and the through hole is provided with internal threads; the anchor device 3 is threadedly connected with the anchor rod 1, and the anchor device 3 and the anchor rod 1 are threadedly connected, further enhancing the stability of the anchor rod 1.

[0050] A fourth through hole is provided in the backing plate 4, and the fourth through hole is provided with internal threads; the backing plate 4 is threadedly connected with the anchor rod 1; the backing plate 4 is an auxiliary structure, which is sleeved on the anchor rod through the through hole and provides additional support and stability; after the anchoring device is driven into a hole on the surface of a structure body that needs to be reinforced, the anchor rod 1 is locked by the backing plate 4 and the anchor device 3, the anchor device 3 is rotated until the backing plate 4 is in contact with the surface of the structure body on the side of the hole, and the anchoring effect is enhanced.

[0051] A connecting device for FRP anchor rods includes two anchor rods 1 and one locking connecting column 21; the two anchor rods 1 are connected by the locking connecting column 21, and the two anchor rods 1 are respectively located on the two sides of the partition plate 204; when one end of one anchor rod 1 extends from one side of the locking connecting column 21 into the butt joint hole 23 and abuts against the side wall of one side of the partition plate 204, the other end of the other anchor rod 1 extends from the other side of the locking connecting column 21 into the butt joint hole 23 and abuts against the side wall of the other side of the partition plate 204; the locking connecting column 21 is used as a connecting fastener, and the required anchor rods 1 are connected by the locking connecting column 21 according to the depth of the hole, which is convenient and practical; the two anchor rods 1 are connected together by the locking connecting column 21 to form a stable anchoring system, which can provide stronger support force under various complex geological conditions.

[0052] The utility model provides a kind of anchoring device for FRP anchor rod, including anchor rod 1 and anchor head 2, the anchor head 2 includes locking connecting column 21;Through the locking connecting column 21 is equipped with the butt joint hole 23, the anchor rod 1 end extends to the butt joint hole 23 with the locking connecting column 21 movably connected;3 groups of first limit block 2031 and 3 groups of second limit block 2032 are symmetrically arranged on the inner wall of butt joint hole 23, and the number of each group of limit block is 2, the first limit block 2031 and the second limit block 2032 are respectively arranged on the inner wall of butt joint hole 23 by snap spring 202, the first limit block 2031 and the second limit block 2032 can be respectively connected with the outer wall of anchor rod 1;The utility model further provides a kind of connecting device for FRP anchor rod, including several anchor rods and locking connecting columns, and every two anchor rods are connected by a locking connecting column, and two anchor rods are located on the two sides of the partition plate.Compared with the anchor head device of prior art, the anchoring device provided by the utility model can fasten FRP anchor rod and is not prone to loosening, so as to improve the anchoring effect and service life of FRP anchor rod;Locking connecting column can not only be part of anchoring device, but also be connecting fastener for connecting several anchor rods, can connect the required several anchor rods by locking connecting column according to the depth of drilling, convenient and practical;Several anchor rods are connected together by locking connecting column, form a stable anchoring system, can provide stronger support force under various complex geological conditions.Solve the problem that the connection between anchoring or connecting structure and FRP anchor rod is not firm enough due to lack of fastener in anchoring or connecting device in prior art, prone to loosening or falling off.

[0053] Obviously, those skilled in the art can make various modifications and variations to the utility model without departing from the spirit and scope of the utility model. Thus, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and their equivalents, the utility model also intends to include these modifications and variations.

Claims

1. An anchoring device for FRP anchor bolts, characterized in that, It includes an anchor bolt (1) and an anchor head (2), the anchor head (2) including a locking connecting post (21); A mating hole (23) is provided through the locking connecting post (21), and the end of the anchor rod (1) extends into the mating hole (23) and is movably connected to the locking connecting post (21); A number of first limiting blocks (2031) and a number of second limiting blocks (2032) are symmetrically arranged on the inner wall of the docking hole (23). The first limiting blocks (2031) and the second limiting blocks (2032) are respectively set on the inner wall of the docking hole (23) by snap rings (202). The first limiting blocks (2031) and the second limiting blocks (2032) can be respectively engaged with the outer wall of the anchor rod (1).

2. The anchoring device for FRP anchor bolts as described in claim 1, characterized in that, The number of the first limiting block (2031) in each group and the number of the second limiting block (2032) in each group are both 2-4.

3. The anchoring device for FRP anchor bolts as described in claim 1, characterized in that, The angles between the first limiting block (2031) and the second limiting block (2032) and the inner wall of the docking hole (23) are both 5-45°.

4. The anchoring device for FRP anchor bolts as described in claim 1, characterized in that, The inner diameter of the docking hole (23) is larger than the outer diameter of the anchor rod (1).

5. The anchoring device for FRP anchor bolts as described in claim 4, characterized in that, A partition (204) is provided inside the docking hole (23). The partition (204) is located between the first limiting block (2031) and the second limiting block (2032). The end of the anchor rod (1) abuts against the side wall of the partition (204).

6. The anchoring device for FRP anchor bolts as described in claim 5, characterized in that, The anchor rod (1) is a threaded straight rod structure. The first limiting block (2031) and the second limiting block (2032) are threaded surfaces that are adapted to the threads on the anchor rod (1).

7. The anchoring device for FRP anchor bolts as described in claim 6, characterized in that, The anchor head (2) also includes a tapered anchor head block (22), which is threaded to one end of the locking connecting column (21); The tapered anchor block (22) has a threaded blind hole on the side away from the tip; The outer wall of the locking connecting column (21) is provided with an external thread (201) that is adapted to the threaded blind hole. One end of the locking connecting column (21) is connected to the tapered anchor block (22) through the external thread (201) and the threaded blind hole.

8. The anchoring device for FRP anchor bolts as described in claim 7, characterized in that, A grouting channel (11) is provided through the anchor rod (1) along its own length. The partition plate (204) and the conical anchor block (22) are respectively provided with a first through hole and a second through hole with the same diameter as the grouting channel (11); the anchor rod (1) is connected to the conical anchor block (22) through the grouting channel (11), the first through hole and the second through hole.

9. The anchoring device for FRP anchor bolts as described in claim 8, characterized in that, The tail of the anchor rod (1) is fitted with a pad (4) and an anchor (3) in sequence, and the pad (4) and the anchor (3) are threadedly connected to the anchor rod (1).

10. A connecting device for FRP anchor bolts, characterized in that, It includes several anchor rods (1) as described in claim 1 and the locking connecting post (21), with each pair of anchor rods (1) connected by a locking connecting post (21).

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