Anchor cable tensile displacement measuring device

Abstract

The utility model belongs to the technical field of engineering detection, and discloses an anchor cable tensile displacement measuring device which comprises a counter-force loading assembly, a supporting frame, a connecting assembly and a laser range finder. The supporting frame comprises a supporting table and a plurality of supporting legs, and the supporting legs are arranged on the supporting table. The connecting assembly comprises a sliding part, the sliding part is located on the side, away from the jack, of the tool anchor in the length direction of the anchor cable, the sliding part is configured to be fixedly connected with the anchor cable, the sliding part is slidably arranged on the supporting table through a guiding assembly, and the extending direction of the guiding assembly is parallel to the length direction of the straightened anchor cable. The laser range finder is used for measuring the displacement of the sliding part. The sliding piece is limited by the supporting table and the guiding assembly, the sliding piece can only move in the extending direction (namely the length direction of the anchor cable) of the guiding assembly, the position of the sliding piece is kept constant in other directions, therefore, the drawing displacement of the anchor cable is accurately reflected, and the displacement measurement precision is jointly improved by using the laser range finder in a combined mode.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering detection, in particular to an anchor cable tensile displacement measuring device. Background Art

[0002] Support anchor cables are commonly used reinforcement structures. During the construction process, the pull-out resistance of the support anchor cables needs to be tested to ensure that they meet the design requirements.

[0003] At present, a dial indicator is often used as a displacement measuring instrument, which is magnetically attached to the anchor head (the end of the anchor cable) to measure the displacement change of the anchor head. However, when the jack pulls the anchor cable, the tension and relaxation of the anchor cable easily cause other parts connected to the anchor cable to vibrate, which not only affects the measurement accuracy of the dial indicator, but may even cause the dial indicator to fall off the anchor head. Utility Model Content

[0004] The utility model aims to provide a device for measuring the tensile displacement of an anchor cable, so as to improve the measurement accuracy of the displacement of the anchor cable.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] Anchor cable tensile displacement measuring device, the anchor cable is inserted and fixed in the supporting structure, and the anchor cable tensile displacement measuring device comprises:

[0007] A reaction force loading assembly, comprising a jack and a tool anchor, wherein the jack comprises a cylinder and a piston, wherein the cylinder is fixed on the supporting structure, the piston is arranged on the cylinder, the tool anchor is fixedly connected to the piston, and the tool anchor is penetrated by the anchor cable and fixedly connected to the anchor cable;

[0008] A support frame, comprising a support platform and a plurality of support legs, each of the support legs being arranged on the support platform;

[0009] A connecting assembly, comprising a sliding member, along the length direction of the anchor cable, the sliding member is located on a side of the tool anchor away from the jack, the sliding member is configured to be fixedly connected to the anchor cable, the sliding member is slidably arranged on the support platform through a guide assembly, and the extension direction of the guide assembly is parallel to the length direction of the straightened anchor cable;

[0010] A laser rangefinder is used to measure the displacement of the sliding member.

[0011] As an optional embodiment of the anchor cable tensile displacement measuring device, the connecting assembly further comprises a locking member, and the locking member is movably disposed on the sliding member to cooperate with the sliding member to clamp or loosen the anchor cable.

[0012] As an optional embodiment of the anchor cable tensile displacement measuring device, the sliding member is provided with a through hole penetrating along the extension direction of the guide assembly, the through hole is configured to pass the anchor cable, the locking member is threadedly connected to the sliding member, the locking member extends into the through hole along the vertical direction of the through hole, and the locking member can be rotated to get closer to or away from the anchor cable.

[0013] As an optional embodiment of the anchor cable tensile displacement measuring device, there are multiple locking members and multiple through holes, and the locking members correspond to the through holes one by one.

[0014] As an optional embodiment of the anchor cable tensile displacement measuring device, the locking member is a compression screw.

[0015] As an optional embodiment of the anchor cable tensile displacement measuring device, the guide assembly includes a first guide rail and a second guide rail arranged parallel to the support platform, and the sliding member is provided with a first groove and a second groove, the first groove slidingly cooperates with the first guide rail, and the second groove slidingly cooperates with the second guide rail.

[0016] As an optional embodiment of the anchor cable tensile displacement measuring device, the cross-sectional shape of the first guide rail and the second guide rail is T-shaped, and the cross-sectional shape of the first groove and the second groove is C-shaped.

[0017] As an optional embodiment of the anchor cable tensile displacement measuring device, the support frame further includes a shock-absorbing member, which is arranged at an end of the support platform in the extension direction of the guide assembly, and the shock-absorbing member is supported by the tool anchor.

[0018] As an optional embodiment of the anchor cable tensile displacement measuring device, it also includes an extension frame, which is arranged on an end of the support platform away from the jack in the extension direction of the guide assembly, and the laser rangefinder is arranged on the extension frame.

[0019] As an optional embodiment of the anchor cable tensile displacement measuring device, each of the supporting legs is a telescopic leg.

[0020] Beneficial effects:

[0021] The utility model provides an anchor cable tensile displacement measuring device, in which a piston slides on a cylinder body, and then the anchor cable is pulled through a tool anchor, and a sliding member is connected to the anchor cable. When the anchor cable is pulled and displaced, the sliding member slides on a support table along a guide assembly and displaces in the same manner. A laser rangefinder collects the sliding distance of the sliding member, and obtains the pulling displacement of the anchor cable. In the anchor cable tensile displacement measuring device of the utility model, the sliding member is limited by a support table and a guide assembly, and the sliding member can only be displaced along the extension direction of the guide assembly (i.e., the length direction of the anchor cable), and maintains a constant position in other directions, thereby accurately reflecting the pulling displacement of the anchor cable. In combination with the use of a laser rangefinder, the displacement measurement accuracy is jointly improved, and the sliding member is limited by the support table and the guide assembly, and is not easy to fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of an anchor cable tensile displacement measuring device provided by an embodiment of the utility model;

[0023] Figure 2 It is a structural schematic diagram of a support frame provided by an embodiment of the utility model;

[0024] Figure 3 It is a structural schematic diagram of a connection assembly provided in an embodiment of the utility model.

[0025] In the figure: 1, anchor cable; 2, support structure; 31, jack; 32, tool anchor; 41, support platform; 42, support leg; 51, first guide rail; 52, second guide rail;

[0026] 61. Sliding member; 611. Perforation; 62. Locking member;

[0027] 7. Laser rangefinder;

[0028] 8. Shock-absorbing parts;

[0029] 9. Extension frame. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0031] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] In the description of this embodiment, the terms "upper", "lower", "right", "left" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0034] like Figure 1-Figure 3 As shown, the anchor cable 1 is passed through and fixed in the supporting structure 2. This embodiment provides an anchor cable tensile displacement measuring device. Specifically, the anchor cable tensile displacement measuring device includes a reaction force loading component, a supporting frame, a connecting component and a laser rangefinder 7.

[0035] like Figure 1 As shown, the reaction force loading assembly includes a jack 31 and a tool anchor 32. The jack 31 includes a cylinder and a piston. The cylinder is fixed on the supporting structure 2. The piston is arranged on the cylinder. The tool anchor 32 is fixedly connected to the piston. The tool anchor 32 is penetrated by the anchor cable 1 and is fixedly connected to the anchor cable 1.

[0036] like Figure 1As shown, the support frame includes a support platform 41 and a plurality of support legs 42, each support leg 42 being arranged on the support platform 41. In this embodiment, the support legs 42 are fixed on the ground or in the soil layer to stabilize the support platform 41, thereby ensuring stability and accuracy during the measurement process. The support frame is made of high-strength material, such as steel, and has sufficient rigidity and stability.

[0037] The connecting assembly includes a sliding member 61, which is located on a side of the tool anchor 32 away from the jack 31 along the length direction of the anchor cable 1. The sliding member 61 is configured to be fixedly connected to the anchor cable 1. The sliding member 61 is slidably arranged on the support platform 41 through a guide assembly, and the extension direction of the guide assembly is parallel to the length direction of the straightened anchor cable 1. The laser rangefinder 7 is used to measure the displacement of the sliding member 61.

[0038] In the anchor cable tensile displacement measuring device provided in this embodiment, the sliding member 61 is limited by the support platform 41 and the guide assembly. The sliding member 61 can only be displaced along the extension direction of the guide assembly (i.e., the length direction of the anchor cable 1), while keeping a constant position in other directions, thereby accurately reflecting the pulling displacement of the anchor cable 1. Combined with the use of the laser rangefinder 7, the displacement measurement accuracy is jointly improved, and the sliding member 61 is supported and limited by the support platform 41 and the guide assembly, and is not easy to fall.

[0039] Optionally, each support leg 42 is a telescopic leg, which is convenient for adjusting the inclination of the support platform 41, so that the extension direction of the guide assembly on the support platform 41 is parallel to the straight direction of the anchor cable 1, so that the device is suitable for anchor cables 1 with different inclination angles.

[0040] In order to connect the anchor cable 1 to the sliding member 61, the connection assembly may further include a locking member 62, which is movably arranged on the sliding member 61 to cooperate with the sliding member 61 to clamp or loosen the anchor cable 1. Figure 1 and Figure 3 As shown, the sliding member 61 is provided with a through hole 611 which passes through the extension direction of the guide assembly, and the through hole 611 is configured to pass the anchor cable 1, and the locking member 62 is threadedly connected to the sliding member 61, and the locking member 62 extends into the through hole 611 along the vertical direction of the through hole 611, and the locking member 62 can be rotated to get closer to or away from the anchor cable 1. In this embodiment, the locking member 62 is a clamping screw, and the sliding member 61 is a sliding block. By screwing the clamping screw into the through hole 611, the anchor cable 1 passing through the through hole 611 can be clamped and fixed; by screwing out the clamping screw, the anchor cable 1 can be loosened. In order to perform pull-out tests on multiple anchor cables 1 at the same time, optionally, multiple locking members 62 and through holes 611 are each provided, and the locking members 62 correspond to the through holes 611 one by one. The sliding block is made of wear-resistant and lightweight materials, such as aluminum alloy or aluminum.

[0041] like Figure 2As shown, in this embodiment, the guide assembly includes a first guide rail 51 and a second guide rail 52 arranged in parallel on the support platform 41, and a first groove and a second groove are provided on the sliding member 61, the first groove is slidably matched with the first guide rail 51, and the second groove is slidably matched with the second guide rail 52. Optionally, the cross-sectional shape of the first guide rail 51 and the second guide rail 52 is T-shaped, and the cross-sectional shape of the first groove and the second groove is C-shaped, so that the sliding member 61 can be better limited to prevent the sliding member 61 from separating from the support platform 41.

[0042] like Figure 1 and Figure 2 As shown, optionally, the support frame further includes a shock absorbing member 8, which is arranged at the end of the support platform 41 in the extension direction of the guide assembly, and the shock absorbing member 8 is supported by the tool anchor 32. In this embodiment, the shock absorbing member 8 is a rubber block, which can provide support to the side of the tool anchor 32 and alleviate the vibration of the tool anchor 32.

[0043] Optionally, the anchor cable tensile displacement measuring device further comprises an extension frame 9, which is arranged at one end of the support platform 41 away from the jack 31 in the extension direction of the guide assembly, and the laser rangefinder 7 is arranged on the extension frame 9. In this embodiment, the extension frame 9 is an L-shaped frame, so that the laser rangefinder 7 is directly opposite to the sliding member 61 along the extension direction of the guide assembly, so that the laser rangefinder 7 can measure the distance between it and the sliding member 61, thereby obtaining the displacement of the sliding member 61.

[0044] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. Anchor cable tensile displacement measuring device, characterized in that: The anchor cable (1) is inserted and fixed in the supporting structure (2), and the anchor cable tensile displacement measuring device comprises: A reaction force loading assembly comprises a jack (31) and a tool anchor (32), wherein the jack (31) comprises a cylinder and a piston, wherein the cylinder is fixed on the support structure (2), the piston is arranged on the cylinder, the tool anchor (32) is fixedly connected to the piston, and the tool anchor (32) is penetrated by the anchor cable (1) and is fixedly connected to the anchor cable (1); A support frame, comprising a support platform (41) and a plurality of support legs (42), wherein each of the support legs (42) is arranged on the support platform (41); A connecting assembly, comprising a sliding member (61), along the length direction of the anchor cable (1), the sliding member (61) being located on a side of the tool anchor (32) away from the jack (31), the sliding member (61) being configured to be fixedly connected to the anchor cable (1), the sliding member (61) being slidably arranged on the support platform (41) via a guide assembly, the extension direction of the guide assembly being parallel to the length direction of the straightened anchor cable (1); A laser rangefinder (7) is used to measure the displacement of the sliding member (61).

2. The anchor cable tensile displacement measuring device according to claim 1, characterized in that: The connection assembly further comprises a locking member (62), which is movably arranged on the sliding member (61) to cooperate with the sliding member (61) to clamp or loosen the anchor cable (1).

3. The anchor cable tensile displacement measuring device according to claim 2, characterized in that: The sliding member (61) is provided with a through hole (611) penetrating along the extension direction of the guide assembly, and the through hole (611) is configured to penetrate the anchor cable (1). The locking member (62) is threadedly connected to the sliding member (61), and the locking member (62) extends into the through hole (611) along the vertical direction of the through hole (611). The locking member (62) can be rotated to move closer to or farther away from the anchor cable (1).

4. The anchor cable tensile displacement measuring device according to claim 3, characterized in that: The locking member (62) and the through hole (611) are both provided in plurality, and the locking member (62) corresponds to the through hole (611) in one-to-one manner.

5. The anchor cable tensile displacement measuring device according to claim 3, characterized in that: The locking member (62) is a compression screw.

6. The anchor cable tensile displacement measuring device according to claim 1, characterized in that: The guide assembly comprises a first guide rail (51) and a second guide rail (52) which are arranged in parallel on the support platform (41); the sliding member (61) is provided with a first groove and a second groove; the first groove is slidably matched with the first guide rail (51) and the second groove is slidably matched with the second guide rail (52).

7. The anchor cable tensile displacement measuring device according to claim 6, characterized in that: The cross-sectional shapes of the first guide rail (51) and the second guide rail (52) are T-shaped, and the cross-sectional shapes of the first groove and the second groove are C-shaped.

8. The anchor cable tensile displacement measuring device according to claim 1, characterized in that: The support frame further comprises a shock absorbing member (8), wherein the shock absorbing member (8) is arranged at the end of the support platform (41) in the extension direction of the guide assembly, and the shock absorbing member (8) is supported by the tool anchor (32).

9. The anchor cable tensile displacement measuring device according to claim 1, characterized in that: It also comprises an extension frame (9), the extension frame (9) being arranged at one end of the support platform (41) away from the jack (31) in the extension direction of the guide assembly, and the laser rangefinder (7) being arranged on the extension frame (9).

10. The anchor cable tensile displacement measuring device according to claim 1, characterized in that: Each of the supporting legs (42) is a telescopic leg.

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