An anchoring device

Abstract

The present application provides an anchoring device, comprising: a sleeve and at least one hoop; a top cover and a bottom cover are provided at each end of the sleeve; one or more chambers are provided inside the sleeve; the chambers are arranged sequentially along the extension direction of the sleeve; a transverse partition is provided between two adjacent chambers; two adhesive components are provided in each chamber, and the two adhesive components are separated by a partition; the top cover, the bottom cover and each transverse partition are provided with through holes for the object to be fixed to pass through; the hoop comprises a hoop body and at least one breaking piece; the hoop body is cylindrical and is used to be sleeved and clamped on the outer wall of the object to be anchored; the breaking piece is provided on the outer wall of the hoop body; the top of the breaking piece is fixedly connected to the outer wall of the hoop body; the bottom of the breaking piece is a free end; a support body is provided between the inner wall of the breaking piece and the outer wall of the hoop body. The application of the present application can solve the problem of anchoring and connecting FRP bars, and at the same time can give full play to the mechanical properties of FRP bars.

Description

Technical Field

[0001] The present application relates to the field of anchoring technology, and in particular to an anchoring device. Background Art

[0002] Fiber-reinforced steel bars offer advantages such as high strength, minimal deformation, lightweight, corrosion resistance, fatigue resistance, and non-magnetic properties, making them suitable for new construction and structural reinforcement in corrosive environments. In civil engineering, steel corrosion has become a major factor in reducing the usability and durability of structures. Both domestically and internationally, the direct and indirect losses caused by steel corrosion have far exceeded expectations. Fundamental reforms to traditional building materials, including the development and research of high-performance steel bars to replace steel in concrete and fundamentally address the problem of steel corrosion, are gaining increasing attention.

[0003] However, the connection and anchoring of fiber reinforced polymer (FRP) bars has always been the biggest problem that has plagued the widespread application of FRP bars. The traditional anchoring method of steel bars is difficult to apply to FRP bars. Considering the low shear strength of FRP bars, it is difficult to directly clamp the FRP bars during testing and application, so stress must be transferred through anchor clamps. However, the ordinary anchor clamps used in the prior art are difficult to anchor the bars, causing the bars to slip during the stress process, and the anchoring ends cause stress concentration, which can easily cause the anchored object to break brittlely at the ends, making it difficult to fully utilize the function of the FRP bars. Summary of the Invention

[0004] In view of this, the present invention provides an anchoring device, which can solve the problems of FRP bar anchoring and connection, and at the same time can fully exert the mechanical properties of the FRP bar.

[0005] The technical solution of the present invention is specifically achieved as follows:

[0006] An anchoring device, comprising: a sleeve and at least one hoop;

[0007] The sleeve is provided with a top cover and a bottom cover at each end; one or more chambers are provided inside the sleeve; the chambers are arranged sequentially along the extension direction of the sleeve; a transverse partition is provided between two adjacent chambers; two adhesive components are provided in each chamber, and the two adhesive components are separated by a partition; the top cover, the bottom cover and each transverse partition are provided with a through hole for the object to be fixed to pass through;

[0008] The hoop comprises a hoop body and at least one breaking member;

[0009] The hoop body is cylindrical and is used to be sleeved and clamped on the outer wall of the object to be anchored;

[0010] The breaking piece is arranged on the outer wall of the hoop body; the top of the breaking piece is fixedly connected to the outer wall of the hoop body; the bottom of the breaking piece is a free end; a support body is arranged between the inner wall of the breaking piece and the outer wall of the hoop body.

[0011] Preferably, when a plurality of chambers are provided in the sleeve, the content of quartz sand, iron sand or fiber in the binder component in each chamber gradually decreases in order from top to bottom.

[0012] Preferably, the separator is a soft partition; the soft partition is vertically arranged in the chamber to separate the chamber into two independent small chambers for placing the two adhesive components respectively.

[0013] Preferably, the separator is a soft packaging bag.

[0014] Preferably, at least one side of the destroying member is provided with a serrated structure or a sharp structure.

[0015] Preferably, a plurality of breaking pieces are provided on the outer side wall of the hoop.

[0016] Preferably, the support body is a spring;

[0017] One end of the spring is fixedly connected to the inner wall of the destroying member, and the other end is connected to the outer side wall of the hoop body.

[0018] Preferably, a groove for accommodating the destructive body and the supporting body is provided on the outer side wall of the hoop body;

[0019] One end of the support body is fixedly connected to the inner wall of the destroying member, and the other end is connected to the bottom of the groove.

[0020] Preferably, the support body comprises: a supporting inclined rod and a sliding ring;

[0021] One end of the supporting diagonal rod is fixedly connected to the inner wall of the destructive member, and the other end is connected to the sliding ring; the sliding ring is sleeved on the outer wall of the hoop body and can slide along the extension direction of the hoop body, or the sliding ring is sleeved on the outer wall of the object to be anchored and can slide along the extension direction of the object to be anchored.

[0022] Preferably, when a plurality of breaking members are provided on the hoop, the supporting diagonal rods in the breaking members share the same sliding ring.

[0023] As can be seen from the above, in the anchoring device of the present invention, since a sleeve and a hoop are provided in the anchoring device, and one or more chambers separated by a top cover, a bottom cover, and a transverse partition are provided in the sleeve, two adhesive components separated by a partition are provided in the chamber, and then a breaking piece is provided on the hoop, so that the hoop can be sleeved and clamped on the outer surface of the object to be anchored, and then the object to be anchored is inserted into the sleeve from the bottom of the sleeve upward, and then the partition between the two adhesive components in the chamber is destroyed by the breaking piece on the hoop, so that the two adhesive components are fully mixed and solidified, so that the object to be anchored can be fixed in the sleeve, thereby realizing the anchoring of the object to be anchored, thereby solving the problem of anchoring and connection of FRP bars, and at the same time, giving full play to the mechanical properties of FRP bars. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Schematic diagram of the structure of the anchoring device in an embodiment of the present invention.

[0025] Figure 2 The structure of the hoop in the embodiment of the present invention is schematically shown. Figure 1 .

[0026] Figure 3 The structure of the hoop in the embodiment of the present invention is schematically shown. Figure 2 .

[0027] Figure 4 The structure of the hoop in the embodiment of the present invention is schematically shown. Figure 3 .

[0028] Figure 5 The structure of the hoop in the embodiment of the present invention is schematically shown. Figure 4 . DETAILED DESCRIPTION

[0029] In order to make the technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Figure 1 is a structural diagram of an anchoring device in an embodiment of the present invention, Figures 2 to 4 FIG. 1 is a schematic structural diagram of a ferrule in an embodiment of the present invention. Figures 1 to 4 As shown, the anchoring device in the embodiment of the present invention includes: a sleeve 11 and at least one hoop 12;

[0031] The sleeve 11 is provided with a top cover 101 and a bottom cover 102 at both ends. One or more chambers are provided inside the sleeve 11. The chambers are arranged sequentially along the extension direction of the sleeve 11. A transverse barrier 103 is provided between two adjacent chambers. Two adhesive components are provided in each chamber, and the two adhesive components are separated by a partition.

[0032] The hoop 12 includes a hoop body 21 and at least one breaking member 22;

[0033] The hoop body 21 is cylindrical and is used to be sleeved and clamped on the outer wall of the object to be anchored 10;

[0034] The breaking piece 22 is arranged on the outer wall of the hoop body 21; the top of the breaking piece 22 is fixedly connected to the outer wall of the hoop body 21; the bottom of the breaking piece 22 is a free end; a support body 23 is provided between the inner wall of the breaking piece 22 and the outer wall of the hoop body 21, for providing support for the bottom of the breaking piece 22.

[0035] When using the anchoring device described in the present application, the hoop can be first placed on and clamped onto the outer wall of the object to be anchored, and then the top end of the object to be anchored can be inserted upwards into the sleeve from the bottom of the sleeve. During the insertion process, if the sleeve has at least two chambers, the object to be anchored will first pass through the bottom cover of the sleeve, then through the chamber adjacent to the bottom cover, and then continue upwards to break the horizontal barrier between the two chambers and enter the other chamber; and so on, until the top end of the object to be anchored passes through the top cover of the sleeve and protrudes from the top of the sleeve.

[0036] When the breaker member of the hoop, which is mounted on the object to be anchored, passes through the transverse barrier between the two chambers, the breaker member, under the compressive force of the transverse barrier, clings to the outer wall of the hoop body, allowing it to pass smoothly through the barrier. Once the breaker member has passed through the barrier, the bottom of the breaker member is no longer squeezed by the barrier, and the support body now provides outward support to the bottom of the breaker member, allowing it to separate from the outer wall of the hoop body and expand under the support force. At this point, rotating the object to be anchored causes the hoop to rotate with the bottom of the breaker member. The bottom of the breaker member, during rotation, breaks the barrier between the two adhesive components in its chamber and, through continued rotation, stirs the two adhesive components, allowing them to mix thoroughly. Subsequently, the object to be anchored can be pulled downward, simultaneously driving the hoop and the bottom of the breaker member downward until the bottom of the breaker member abuts and locks against the transverse barrier between the two chambers.

[0037] After the two adhesive components in the chamber (for example, component A and component B) are fully mixed, they will gradually solidify, thereby fixing the object to be anchored inserted into the chamber in the sleeve; at the same time, the bottom of the breaking piece that is abutted and stuck with the transverse partition between the two chambers can also provide corresponding supporting force, which is beneficial to the fixation and positioning of the object to be anchored, thereby further fixing the object to be anchored more firmly in the sleeve, which is equivalent to anchoring the object to be anchored by a dual combination of chemical and mechanical methods.

[0038] Therefore, once the two adhesive components in each of the above chambers are fully mixed and cured, the anchoring of the object to be anchored can be achieved, at which point a tensile test or installation can be performed.

[0039] In addition, the above-mentioned anchoring device can also be used to connect two objects to be anchored.

[0040] For example, a sleeve can be placed and clamped onto the outer surfaces of the first and second objects to be anchored, respectively. The first object to be anchored is then inserted from the bottom of the sleeve to the middle of the sleeve, and the second object to be anchored is inserted from the top of the sleeve to the middle of the sleeve. Then, the first and second objects to be anchored are rotated simultaneously to destroy the partitions between the two adhesive components in each chamber, allowing the two adhesive components to be fully mixed. Subsequently, the first and second objects to be anchored are pulled outward from the sleeve, respectively, so that the bottom of the breaking piece of each sleeve abuts against and is clamped to the transverse barrier. When the two adhesive components in each chamber are fully mixed and solidified, the first and second objects to be anchored are docked.

[0041] In addition, in the technical solution of the present application, the above-mentioned object to be anchored can be a variety of objects that need to be anchored.

[0042] For example, as an example, in a specific embodiment of the present invention, the object to be anchored may be an FRP bar, or may be other objects that need to be anchored.

[0043] Among them, the FRP bar is a fiber-reinforced composite bar, which has the advantages of high strength, small deformation, light weight, corrosion resistance, fatigue resistance and non-magneticity, including: carbon fiber bar, glass fiber bar, basalt fiber bar and aramid bar.

[0044] In addition, in the technical solution of the present application, the number of chambers in the above-mentioned sleeve can be pre-set according to the needs of the actual application scenario.

[0045] For example, as an example, in a specific embodiment of the present invention, the sleeve can be provided with 1, 2 or 3 chambers. Of course, other suitable numbers of chambers can also be provided, which will not be listed here one by one.

[0046] In addition, as an example, in a specific embodiment of the present invention, the top cover, bottom cover, and each transverse partition are provided with through holes 104 for the object to be fixed to pass through. Therefore, the object to be anchored can pass through the top cover, bottom cover, and each transverse partition of the sleeve more smoothly through the through holes.

[0047] In addition, in the technical solution of the present application, a variety of specific implementation methods can be used to realize the separation between the two adhesive components.

[0048] For example, in a specific embodiment of the present invention, the separator may be a soft partition; the soft partition is vertically arranged in the chamber to separate the chamber into two independent small chambers for placing two adhesive components respectively.

[0049] In addition, as an example, in a specific embodiment of the present invention, the separator may also be a soft packaging bag, that is, two soft packaging bags are used to independently contain the two adhesive components.

[0050] In addition, as an example, in a specific embodiment of the present invention, the two adhesive components may be in a fluid state so as to be easier to mix.

[0051] Furthermore, in the technical solution of the present application, when the sleeve is provided with multiple chambers, the content of various raw materials in the binder component in each chamber can be set separately, so that after the binder components are fully mixed and cured, each chamber has a different shear strength. For example, a predetermined amount of quartz sand, iron sand, or fiber can be added to the binder component, so that after the two binder components are fully mixed, the resulting binders can have different strengths, thereby ensuring that the chambers in which they are located have corresponding shear strengths.

[0052] For another example, as an example, in a specific embodiment of the present invention, when multiple chambers are provided in the sleeve, the content of quartz sand, iron sand or fiber in the binder component in each chamber gradually decreases in order from top to bottom.

[0053] For example, if Figure 1 As shown, assuming that three chambers are provided in the sleeve: chamber 1, chamber 2 and chamber 3, the content of quartz sand, iron sand or fiber in the binder component in chamber 1 is the highest, the content of quartz sand, iron sand or fiber in the binder component in chamber 2 is the second highest, and the content of quartz sand, iron sand or fiber in the binder component in chamber 3 is the lowest.

[0054] Compared with the binder without quartz sand, iron sand or fiber, the binder with quartz sand, iron sand or fiber has higher shear strength. Therefore, after the binder components in each chamber are fully mixed and cured, the shear strength of the above-mentioned chamber 3 is the lowest, the shear strength of chamber 2 is second, and the shear strength of chamber 1 is the highest, thereby achieving the purpose of gradually increasing the shear strength from bottom to top.

[0055] In addition, since quartz sand, iron sand or fiber can also effectively enhance the friction between the object to be anchored and the adhesive, it can be more conducive to anchoring the object to be anchored.

[0056] In addition, as the content of quartz sand, iron sand or fiber doped in the binder in each chamber decreases from top to bottom, the elastic modulus of the binder will also become smaller and smaller, so the shear stress peak value on the surface of the reinforcement at the fracture below the sleeve will also become smaller (compared with the shear stress peak value on the surface of the reinforcement at the fracture above the sleeve), thereby reducing the stress concentration, thereby effectively avoiding brittle fracture of the reinforcement due to stress concentration.

[0057] In addition, in the technical solution of the present application, a variety of specific implementations can be used to implement the above-mentioned ferrule. The following will take several of the specific implementations as examples to introduce the technical solution of the present application in detail.

[0058] For example, Figures 2 to 4 As shown, as an example, in a specific embodiment of the present invention, at least one side of the breaker is provided with a serrated structure or a sharp structure, so that the separator between the two adhesive components can be destroyed by the serrated structure or the sharp structure.

[0059] For another example, as an example, in another specific embodiment of the present invention, a plurality of breaking pieces (for example, 2 breaking pieces, or 4 breaking pieces, such as Figure 4 ), whereby the partition between the two adhesive components can also be more easily broken.

[0060] For another example, in another specific embodiment of the present invention, the support member may be a spring; one end of the spring is fixedly connected to the inner wall of the breaker, and the other end is connected to the outer wall of the hoop. When the spring is in a free state (i.e., uncompressed), the elastic force of the spring can support the bottom of the breaker, so that the bottom of the breaker is a certain distance away from the outer wall of the hoop.

[0061] Therefore, when the breaking piece of the hoop passes through the transverse partition between the two chambers, the spring is compressed under the extrusion force of the transverse partition; and after the breaking piece passes through the transverse partition, the compressed spring will provide a thrust for the breaking piece, so that the bottom of the breaking piece leaves the outer wall of the hoop body and stretches out under the action of the spring.

[0062] In addition, as an example, Figure 5 As shown, in another specific embodiment of the present invention, the outer wall of the hoop body can be further provided with a groove 51 for accommodating the breaker and the support body. In this case, one end of the support body is fixedly connected to the inner wall of the breaker, and the other end is connected to the bottom of the groove 51.

[0063] In the technical solution of the present application, the shape and depth of the above-mentioned groove can be set according to the structure of the destructive body and the supporting body, so that the destructive body and the supporting body can be accommodated in the groove when squeezed by external force, so that the outer wall of the destructive body is flush with the outer wall of the hoop body, thereby reducing the resistance of the destructive piece when passing through the transverse barrier, making it easier for the hoop body and the destructive piece to pass through the transverse barrier.

[0064] For another example, as an example, in another specific embodiment of the present invention, the support body may include: a supporting diagonal rod and a sliding ring; one end of the supporting diagonal rod is fixedly connected to the inner wall of the destructive member, and the other end is connected to the sliding ring; the sliding ring is sleeved on the outer wall of the hoop body and can slide along the extension direction of the hoop body.

[0065] Therefore, when the breaking piece of the hoop passes through the transverse partition between the two chambers, the supporting diagonal rod passes through the transverse partition close to the outer wall of the hoop body under the extrusion force of the transverse partition; and after the breaking piece passes through the transverse partition, it is only necessary to pull the object to be anchored down a short distance so that the bottom of the sliding ring abuts against and gets stuck with the transverse partition between the two chambers, so that the end of the supporting diagonal rod connected to the breaking piece can leave the outer wall of the hoop body, thereby supporting the bottom of the breaking piece to leave the outer wall of the hoop body and stretch out under the supporting force of the supporting diagonal rod.

[0066] Alternatively, as an example, in another specific embodiment of the present invention, the sliding ring may be directly mounted on the outer wall of the object to be anchored and may slide along the extension direction of the object to be anchored. In this case, the sliding ring is actually mounted on the object to be anchored rather than on the hoop body, thereby reducing the length of the hoop body.

[0067] In addition, as an example, in another specific embodiment of the present invention, when a plurality of breaking members are provided on the hoop, the supporting diagonal rods in the breaking members may share the same sliding ring.

[0068] For example, if there are four breaking pieces on the hoop, only one sliding ring can be provided, and the four supporting diagonal rods in the four breaking pieces can share the same sliding ring, thereby making the structure simpler and easier to manufacture and install.

[0069] In addition, in the technical solution of the present application, the number of the above-mentioned ferrules can be pre-set according to the needs of the actual application scenario.

[0070] For example, in another embodiment of the present invention, the number of the ferrules is the same as the number of the chambers in the sleeve.

[0071] For example, if Figure 1As shown, when three chambers are provided in the sleeve, three ferrules may be provided in the anchoring device to respectively correspond to the three chambers in the sleeve.

[0072] In addition, in the technical solution of the present application, a variety of materials can be used to manufacture the above-mentioned anchoring device according to the needs of actual application scenarios.

[0073] For example, in another specific embodiment of the present invention, the sleeve and the ferrule can be made of steel, aluminum or FRP pipe.

[0074] To sum up, in the technical solution of the present application, a sleeve and a hoop are provided in the anchoring device, and one or more chambers separated by a top cover, a bottom cover, and a transverse partition are provided in the sleeve, two adhesive components separated by a partition are provided in the chamber, and then a breaking piece is provided on the hoop. Therefore, the hoop can be sleeved and clamped on the outer surface of the object to be anchored, and then the object to be anchored is inserted into the sleeve from the bottom of the sleeve upward, and then the partition between the two adhesive components in the chamber is destroyed by the breaking piece on the hoop, so that the two adhesive components are fully mixed and solidified, so that the object to be anchored can be fixed in the sleeve, thereby realizing the anchoring of the object to be anchored, thereby solving the problem of anchoring and connection of FRP bars, and at the same time, giving full play to the mechanical properties of FRP bars.

[0075] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An anchoring device, characterized in that: The anchoring device comprises: a sleeve and at least one hoop; The sleeve is provided with a top cover and a bottom cover at each end; one or more chambers are provided inside the sleeve; the chambers are arranged sequentially along the extension direction of the sleeve; a transverse partition is provided between two adjacent chambers; two adhesive components are provided in each chamber, and the two adhesive components are separated by a partition; the top cover, the bottom cover and each transverse partition are provided with a through hole for the object to be fixed to pass through; The hoop comprises a hoop body and at least one breaking member; The hoop body is cylindrical and is used to be sleeved and clamped on the outer wall of the object to be anchored; The breaking piece is arranged on the outer wall of the hoop body; the top of the breaking piece is fixedly connected to the outer wall of the hoop body; the bottom of the breaking piece is a free end; a support body is arranged between the inner wall of the breaking piece and the outer wall of the hoop body.

2. The anchoring device according to claim 1, characterized in that: When a plurality of chambers are provided in the sleeve, the content of quartz sand, iron sand or fiber in the binder component in each chamber gradually decreases in order from top to bottom.

3. The anchoring device according to claim 1, characterized in that: The separator is a soft partition; the soft partition is vertically arranged in the cavity to divide the cavity into two independent small chambers for respectively placing two adhesive components.

4. The anchoring device according to claim 1, characterized in that: The separator is a soft packaging bag.

5. The anchoring device according to claim 1, characterized in that: At least one side of the destroying member is provided with a serrated structure or a sharp structure.

6. The anchoring device according to claim 1, characterized in that: A plurality of breaking pieces are arranged on the outer side wall of the hoop.

7. The anchoring device according to claim 1, characterized in that: The support body is a spring; One end of the spring is fixedly connected to the inner wall of the destroying member, and the other end is connected to the outer side wall of the hoop body.

8. The anchoring device according to claim 7, characterized in that: The outer wall of the hoop body is provided with a groove for accommodating the destroying member and the supporting body; One end of the support body is fixedly connected to the inner wall of the destroying member, and the other end is connected to the bottom of the groove.

9. The anchoring device according to claim 1, characterized in that: The support body includes: a supporting inclined rod and a sliding ring; One end of the supporting diagonal rod is fixedly connected to the inner wall of the destructive member, and the other end is connected to the sliding ring; the sliding ring is sleeved on the outer wall of the hoop body and can slide along the extension direction of the hoop body, or the sliding ring is sleeved on the outer wall of the object to be anchored and can slide along the extension direction of the object to be anchored.

10. The anchoring device according to claim 9, characterized in that: When a plurality of breaking members are provided on the hoop, the supporting oblique rods in the breaking members share the same sliding ring.

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