Detachable sleeve structure for anchor rod drawing experiment

Abstract

The utility model belongs to the technical field of civil engineering, and relates to a detachable sleeve structure for an anchor rod drawing experiment, which comprises two arc-shaped sleeves which are oppositely arranged, the cross section of each arc-shaped sleeve is of a semicircular structure, and the two arc-shaped sleeves form a cylindrical structure; the two arc-shaped plates are arranged on the outer side faces of the two arc-shaped sleeves, and the inner side face of each arc-shaped plate makes contact with the outer side faces of the two arc-shaped sleeves; and the two fixing assemblies are arranged between the two arc-shaped plates, each fixing assembly is connected with the two ends, close to each other, of the two arc-shaped plates, and the two fixing assemblies are used for fixing the two arc-shaped plates. The two arc-shaped sleeves can be detached from the anchor rod by detaching the two arc-shaped plates after misoperation or overlarge stress occurs, sleeve damage caused by the fact that the anchor rod is clamped in the sleeve is avoided, the sleeve can be repeatedly used, the utilization rate of the sleeve is increased, and the cost of an anchor rod drawing experiment is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of civil engineering and relates to a detachable sleeve structure used for an anchor rod pulling experiment. Background Art

[0002] An anchor pullout test is a test method used to evaluate the anchoring performance of an anchor in rock and soil. By simulating external forces, the test can determine the anchor's ultimate pullout capacity, elastic modulus, and possible failure modes. A key component in anchor pullout tests is the sleeve, which connects the anchor to the test equipment to simulate or measure the anchor's pullout force.

[0003] Currently, the existing sleeve is a cylindrical structure with two ends open. The anchor rod is connected to the testing equipment through the sleeve to facilitate the anchor rod pulling test.

[0004] However, during the anchor pull-out test, the sleeve is prone to excessive force, causing the anchor to get stuck in the sleeve, resulting in sleeve damage, making the sleeve often a disposable item, reducing the utilization rate of the sleeve and increasing the cost of the anchor pull-out test. Utility Model Content

[0005] The purpose of the utility model is to provide a detachable sleeve structure for anchor rod pulling experiments, which can prevent the anchor rod from being stuck in the sleeve due to excessive force, so that the sleeve can be reused and the utilization rate of the sleeve is improved.

[0006] To achieve the above-mentioned purpose, the present invention provides a specific technical solution of a detachable sleeve structure for anchor bolt pulling test as follows:

[0007] A detachable sleeve structure for an anchor bolt pull-out test, comprising:

[0008] Two arc-shaped sleeves are arranged opposite to each other, the cross section of each arc-shaped sleeve is a semi-annular structure, and the two arc-shaped sleeves form a cylindrical structure;

[0009] Two arc-shaped plates are arranged on the outer side surfaces of the two arc-shaped sleeves, and the inner side surface of each arc-shaped plate contacts the outer side surfaces of the two arc-shaped sleeves respectively;

[0010] Two fixing components are arranged between the two arc-shaped plates. Each fixing component is respectively connected to two ends of the two arc-shaped plates close to each other. The two fixing components are used to fix the two arc-shaped plates.

[0011] The utility model is also characterized in that:

[0012] Each fixing assembly includes two connecting plates, which are arranged at the ends of the two arc-shaped plates relative to each other. One end of each connecting plate is fixedly connected to the end of the corresponding arc-shaped plate, and the two connecting plates are detachably connected.

[0013] The two connecting plates are respectively provided with connecting holes at opposite positions. Bolts are arranged in the two connecting holes, and nuts are arranged on the bolts.

[0014] An elastic gasket is sleeved on the bolt at a position between the two connecting plates.

[0015] Each arc-shaped sleeve has at least one groove on its outer side, which is arranged along the circumference of the arc-shaped sleeve. Both ends of the groove are open structures. A protrusion is provided on the inner side of each arc-shaped plate near the groove, and the protrusion is located in the corresponding groove.

[0016] The protrusion is arc-shaped and the arc length is the same as the arc length of the groove.

[0017] There are two grooves, and the positions of the two grooves are respectively close to two sides of the arc plate along the axial direction.

[0018] The inner side surfaces of the two arc-shaped sleeves are provided with internal threads.

[0019] The detachable sleeve structure for anchor rod pulling test of the utility model has the following advantages:

[0020] First, through the cooperation of two arc sleeves, two arc plates and two fixing components, the two arc sleeves can be removed from the anchor rod by removing the two arc plates when excessive force occurs, avoiding the anchor rod being stuck in the sleeve and causing damage to the sleeve, making the sleeve reusable, improving the utilization rate of the sleeve, and reducing the cost of the anchor rod pulling test.

[0021] Second, through the cooperation of the two connecting plates, the two arc sleeves, the grooves and the protrusions, the arc plate can be prevented from sliding axially along the arc sleeve. At the same time, the connection between the two arc plates and the two arc sleeves is also made more firm, ensuring that the anchor rod pulling test can be carried out normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the top structure of the utility model;

[0025] Figure 4 This is a schematic diagram of the overall structure of the curved plate in the utility model;

[0026] Figure 5 It is a schematic diagram of the overall structure of the two arc-shaped sleeves in the utility model.

[0027] Reference numerals:

[0028] 1. Arc sleeve; 2. Groove; 3. Arc plate; 4. Bump; 5. Connecting plate; 6. Connecting hole; 7. Bolt. DETAILED DESCRIPTION

[0029] The technical solutions in this application will be described clearly and in detail below in conjunction with the accompanying drawings. In the description of the embodiments of this application, unless otherwise specified, " / " means or, for example, A / B can mean A or B: "and / or" in the text is only a description of the association relationship of associated objects, indicating that there can be three relationships, such as A and / or B, which can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of this application, "multiple" refers to two or more than two. The following terms "first" and "second" are used for descriptive purposes only and cannot be understood as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0030] like Figure 1-Figure 3 As shown, the utility model provides a detachable sleeve structure for anchor rod pulling experiment, comprising two arc sleeves 1, two arc plates 3 and two fixing components. The two arc sleeves 1 are arranged opposite to each other, and the cross section of each arc sleeve 1 is a semi-annular structure. The two arc sleeves 1 form a cylindrical structure, which is convenient for clamping the anchor rod therein. The two arc plates 3 are arranged on the outer side surfaces of the two arc sleeves 1, and the inner side surface of each arc plate 3 is in contact with the outer side surfaces of the two arc sleeves 1 respectively. The two fixing components are arranged between the two arc plates 3, and each fixing component is respectively in contact with the two The two ends of the arc plates 3 are connected close to each other, and two fixing components are used to fix the two arc plates 3, so that the two arc plates 3 can clamp the two arc sleeves 1 therein, so that the two arc sleeves 1 can fit together firmly to form a cylindrical structure to fix the anchor rod, so that in the event of improper operation or excessive force, the two arc sleeves 1 can be removed from the anchor rod by removing the two arc plates 3, avoiding the anchor rod being stuck in the sleeve and causing damage to the sleeve, making the sleeve reusable, improving the utilization rate of the sleeve, and reducing the cost of the anchor rod pulling test.

[0031] like Figure 1-Figure 3 As shown, each fixing assembly includes two connecting plates 5, which are relatively arranged at the ends of the two curved plates 3. One end of each connecting plate 5 is fixedly connected to the end of the corresponding curved plate 3, and the two connecting plates 5 are detachably connected, thereby facilitating the quick installation and disassembly of the two connecting plates 5.

[0032] like Figures 1-4As shown, connecting holes 6 are respectively opened at relative positions of the two connecting plates 5, bolts 7 are arranged in the two connecting holes 6, and nuts are arranged on the bolts 7. The two connecting plates 5 are fixed by passing the bolts 7 through the two connecting holes 6, then putting the nuts on the bolts 7, and tightening the nuts with a wrench. An elastic gasket is provided on the bolt 7 between the two connecting plates 5 to prevent the nut from loosening during the anchor rod pulling test, thereby making the two connecting plates 5 more firmly fixed.

[0033] like Figure 4 、 Figure 5 As shown, at least one groove 2 is provided on the outer side surface of each arc-shaped sleeve 1. The groove 2 is arranged along the circumference of the arc-shaped sleeve 1. Both ends of the groove 2 are open structures. A protrusion 4 is provided on the inner side surface of each arc-shaped plate 3 near the groove 2. The protrusion 4 is located in the corresponding groove 2 to prevent the arc-shaped plate 3 from sliding axially along the arc-shaped sleeve 1. At the same time, it also makes the connection between the two arc-shaped plates 3 and the two arc-shaped sleeves 1 more firmly.

[0034] like Figure 4 、 Figure 5 As shown, the protrusion 4 is arc-shaped and its arc length is the same as that of the groove 2, so that each protrusion 4 can be simultaneously located in the two grooves 2 on the outer sides of the two arc-shaped sleeves 1, making the two arc-shaped plates 3 fix the two arc-shaped sleeves 1 more firmly.

[0035] like Figure 4 、 Figure 5 As shown, there are two grooves 2, and the two grooves 2 are located close to the two sides of the arc plate 3 along its axial direction. There are also two protrusions 4, and the two protrusions 4 are located in the two grooves 2, respectively, which further makes the connection between the two arc plates 3 and the two arc sleeves 1 more firmly. The inner side surfaces of the two arc sleeves 1 are provided with internal threads or the inner side surfaces are truncated cone-shaped structures, which are convenient for adapting to different experimental requirements.

[0036] Working principle: When conducting an anchor rod pulling test, the inner sides of the two arc sleeves 1 are opposite to each other, so that the two arc sleeves 1 are tightly together, and then the two arc plates 3 are put on the outer sides of the two arc sleeves 1, so that the two protrusions 4 on each arc plate 3 are respectively located in the two grooves 2, and the two ends of each protrusion 4 are respectively located in the two grooves 2 on the two arc plates 3, and then the two connecting plates 5 on the adjacent ends of the two arc plates 3 are opposite to each other, and each bolt 7 is inserted into the corresponding two connecting holes 6, and the nut is put on the bolt 7, and the nut is tightened with a wrench to fix the two arc sleeves 1, and then the anchor rod and the test equipment are connected through the two arc sleeves, and then the anchor rod pulling test is carried out. When improper operation or excessive force is encountered during the experiment, it is only necessary to remove the two nuts on the two bolts 7 to loosen the fixation of the two arc sleeves 1 and remove the two arc sleeves 1 from the anchor rod and the test equipment.

[0037] The detachable sleeve structure for anchor rod pulling test of the utility model has the following advantages:

[0038] First, through the cooperation of two arc sleeves, two arc plates and two fixing components, the two arc sleeves can be removed from the anchor rod by removing the two arc plates when excessive force occurs, avoiding the anchor rod being stuck in the sleeve and causing damage to the sleeve, making the sleeve reusable, improving the utilization rate of the sleeve, and reducing the cost of the anchor rod pulling test.

[0039] Second, through the cooperation of the two connecting plates, the two arc sleeves, the grooves and the protrusions, the arc plate can be prevented from sliding axially along the arc sleeve. At the same time, the connection between the two arc plates and the two arc sleeves is also made more firm, ensuring that the anchor rod pulling test can be carried out normally.

[0040] It is understood that the present invention is described by way of certain embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. Furthermore, under the guidance of the present invention, these features and embodiments may be modified to suit specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A detachable sleeve structure for anchor bolt pulling test, characterized in that: include: Two arc-shaped sleeves (1) are arranged opposite to each other, the cross section of each arc-shaped sleeve (1) is a semi-annular structure, and the two arc-shaped sleeves (1) form a cylindrical structure; Two arc-shaped plates (3) are arranged on the outer side surfaces of the two arc-shaped sleeves (1), and the inner side surface of each of the arc-shaped plates (3) contacts the outer side surfaces of the two arc-shaped sleeves (1); Two fixing components are arranged between the two arc-shaped plates (3), each of the fixing components is connected to two ends of the two arc-shaped plates (3) that are close to each other, and the two fixing components are used to fix the two arc-shaped plates (3); Each of the fixing components comprises two connecting plates (5), the two connecting plates (5) being arranged oppositely at the ends of the two arc-shaped plates (3), one end of each connecting plate (5) being fixedly connected to the end of the corresponding arc-shaped plate (3), and the two connecting plates (5) being detachably connected; Connecting holes (6) are respectively provided at opposite positions of the two connecting plates (5), bolts (7) are provided in the two connecting holes (6), and nuts are provided on the bolts (7); An elastic gasket is sleeved on the bolt (7) at a position between the two connecting plates (5); At least one groove (2) is provided on the outer side surface of each arc-shaped sleeve (1), and the groove (2) is arranged along the circumference of the arc-shaped sleeve (1). Both ends of the groove (2) are open structures. A protrusion (4) is provided on the inner side surface of each arc-shaped plate (3) near the groove (2), and the protrusion (4) is located in the corresponding groove (2).

2. The detachable sleeve structure for anchor bolt pulling test according to claim 1 is characterized in that: The convex block (4) is arc-shaped and has an arc length that is the same as that of the groove (2).

3. The detachable sleeve structure for anchor bolt pulling test according to claim 1, characterized in that: There are two grooves (2), and the positions of the two grooves (2) are respectively close to the two sides of the arc plate (3) along the axial direction thereof.

4. The detachable sleeve structure for anchor bolt pulling test according to claim 1, characterized in that: The inner side surfaces of the two arc-shaped sleeves (1) are provided with internal threads or have a truncated cone-shaped structure.

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