An eccentricity-preventing and disturbance-preventing anchor cable tensioning device

Abstract

This invention discloses an anchor cable tensioning device for preventing eccentricity and disturbance, relating to the field of foundation pit slope construction technology. It includes a tensioning installation mechanism, a first pair of rings, and a second pair of rings. Both the first and second pairs of rings are connected inside the tensioning installation mechanism. The first pair of rings includes a first circular ring, with a first arc-shaped sleeve having a stepped outer wall connected to its outer side. The second pair of rings includes a second circular ring, with a second arc-shaped sleeve having a stepped inner wall connected to one side of its second circular ring. The stepped structure of the first arc-shaped sleeve is adapted to the stepped structure of the second arc-shaped sleeve. The anchor cable tensioning device provided by this invention corrects the anchor cable by the contact between the first and second pairs of rings, ensuring that the axial force gauge will not tilt due to disturbance during on-site construction after the anchor cable tensioning is completed.

Description

Technical Field

[0001] This invention relates to the field of foundation pit slope construction technology, specifically to an anchor cable tensioning device for preventing eccentricity and disturbance. Background Technology

[0002] In engineering projects such as foundation pit excavation, anchor cables need to be tensioned around the foundation pit during soil excavation to ensure the stability of the support around the foundation pit.

[0003] In conventional construction, when anchor cables are being installed, especially those formed by multiple steel strands of different lengths, uneven loads or uneven tensioning support positions can cause anchor cable eccentricity during tensioning, resulting in poor anchor cable locking performance.

[0004] Therefore, it is necessary to provide an anchor cable tensioning device that prevents eccentricity and disturbance. Summary of the Invention

[0005] The main objective of this invention is to provide an anchor cable tensioning device that prevents eccentricity and disturbance, so as to solve the problems existing in the prior art.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] An anchor cable tensioning device for preventing eccentricity and disturbance includes a tensioning installation mechanism, a first pair of rings, and a second pair of rings. Both the first pair of rings and the second pair of rings are connected inside the tensioning installation mechanism. The first pair of rings includes a first circular ring, and a first arc-shaped sleeve with a stepped outer wall is connected to the outer side of the first circular ring. The second pair of rings includes a second circular ring, and a second arc-shaped sleeve with a stepped inner wall is connected to one side of the second circular ring. The stepped structure of the first arc-shaped sleeve is adapted to the stepped structure of the second arc-shaped sleeve.

[0008] Furthermore, the tensioning installation mechanism includes a metal pad, an axial force gauge, and a tool anchor. The metal pad is installed within the tensioning area, and a second pair of rings, a first pair of rings, an axial force gauge, and a tool anchor are sequentially connected to one side of the metal pad.

[0009] Furthermore, the height of the first arc-shaped sleeve is 2cm, the inner diameter of the first ring is 6cm, and the maximum outer diameter of the first arc-shaped sleeve is 10cm.

[0010] Furthermore, the height of the second pair of rings is 1.5cm, the height of the second arc-shaped sleeve is 1cm, the maximum outer diameter of the second arc-shaped sleeve is 8mm, the height of the second ring is 0.5cm, and the inner diameter of the second ring is 6cm.

[0011] Furthermore, the cross-sections of the first arc-shaped sleeve and the second arc-shaped sleeve are circular. The stepped structure on the first arc-shaped sleeve has a height and diameter difference of 1 mm between adjacent steps, and the stepped structure on the second arc-shaped sleeve also has a height and diameter difference of 1 mm between adjacent steps.

[0012] Furthermore, the top end of the first arc-shaped sleeve is flush with the top end of the first ring.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The installation steps of the device are simple and the operation is convenient;

[0015] 2. The outer diameter of the first arc-shaped sleeve of the first pair of rings is larger than the outer diameter of the second arc-shaped sleeve of the second pair of rings, so that the first pair of rings and the second pair of rings have sufficient sliding range to cope with different tension conditions;

[0016] 3. The first and second arc-shaped sleeves are provided with matching stepped structures. The matching stepped structures increase the friction between the first pair of rings and the second pair of rings, making them more tightly connected and avoiding the risk of the axial force gauge tilting. Attached Figure Description

[0017] Figure 1 This is an exploded schematic diagram of an anchor cable tensioning device for preventing eccentricity and disturbance according to the present invention.

[0018] Figure 2 This is a top view of the first pair of rings of an anchor cable tensioning device for preventing eccentricity and disturbance according to the present invention.

[0019] Figure 3 This is a side view of the first pair of rings of an anchor cable tensioning device for preventing eccentricity and disturbance according to the present invention.

[0020] Figure 4 This is a bottom view of the second pair of rings in the anti-eccentricity and anti-disturbance anchor cable tensioning device of the present invention.

[0021] Figure 5 This is a side view of the second pair of rings in an anti-eccentricity and anti-disturbance anchor cable tensioning device of the present invention.

[0022] Figure 6 This is a schematic diagram of the final tensioning state of the anchor cable tensioning device for preventing eccentricity and disturbance according to the present invention.

[0023] Figure 7 This is a schematic diagram showing the connection between the first pair of rings and the second pair of rings.

[0024] Figure 8 This is a schematic diagram showing the separation of the first and second pairs of rings.

[0025] Wherein, 1-first pair of rings; 11-first circular ring; 12-first arc-shaped sleeve; 2-second pair of rings; 21-second circular ring; 22-second arc-shaped sleeve; 3-metal pad; 4-axial force gauge; 5-tool anchor; 6-steel strand. Detailed Implementation

[0026] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] Example 1

[0028] This invention discloses an anchor cable tensioning device for preventing eccentricity and disturbance, such as... Figure 1-8 As shown, the device includes a tensioning and installation mechanism, a first pair of rings 1, and a second pair of rings 2. Both the first pair of rings 1 and the second pair of rings 2 are connected inside the tensioning and installation mechanism. The first pair of rings 1 includes a first circular ring 11, and a first arc-shaped sleeve 12 with a stepped outer wall is connected to the outer side of the first circular ring 11. The second pair of rings 2 includes a second circular ring 21, and a second arc-shaped sleeve 22 with a stepped inner wall is connected to one side of the second circular ring 21. The stepped structure of the first arc-shaped sleeve 12 is adapted to the stepped structure of the second arc-shaped sleeve 22, so that the second arc-shaped sleeve 22 can slide relative to the first arc-shaped sleeve 12 and the final positions of the two are relatively fixed and concentric, achieving the effect of preventing eccentricity during tensioning and preventing disturbance after tensioning. In this embodiment, the top end of the first arc-shaped sleeve 12 is flush with the top end of the first circular ring 11.

[0029] The first arc sleeve 12 and the second arc sleeve 22 are provided with matching stepped structures. If the arc surfaces of the two arc sleeves are smooth, there is a risk that the axial force gauge will tilt due to collisions during on-site construction after the anchor cable tensioning is completed. The matching stepped structures on the arc surfaces increase the friction between the first pair of rings and the second pair of rings, making them more closely connected and avoiding the risk of the axial force gauge tilting.

[0030] The tensioning installation mechanism includes a metal pad 3, an axial force gauge 4, and a tool anchor 5. The metal pad 3 is installed in the tensioning area. The second pair of rings 2, the first pair of rings 1, the axial force gauge 4, and the tool anchor 5 are connected in sequence on one side of the metal pad 3. The steel strand 6 used for tensioning passes through the metal pad 3, the second pair of rings 2, the first pair of rings 1, the axial force gauge 4, and the tool anchor 5 in sequence.

[0031] In this embodiment, the height of the first arc-shaped sleeve 12 is 2cm, the inner diameter of the first ring 11 is 6cm, and the maximum outer diameter of the first arc-shaped sleeve 12 is 10cm; the height of the second pair of rings 2 is 1.5cm, the height of the second arc-shaped sleeve 22 is 1cm, the maximum outer diameter of the second arc-shaped sleeve 22 is 8mm, the height of the second ring 21 is 0.5cm, and the inner diameter of the second ring 21 is 6cm.

[0032] The horizontal cross-sections of the first arc-shaped sleeve 12 and the second arc-shaped sleeve 22 are circular. The stepped structure on the first arc-shaped sleeve 12 has a height and diameter difference of 1 mm between adjacent steps. The stepped structure on the second arc-shaped sleeve also has a height and diameter difference of 1 mm between adjacent steps.

[0033] In other embodiments, the stepped structure of the first arc-shaped sleeve 12 and the stepped structure of the second arc-shaped sleeve 22 may be of other sizes.

[0034] When the anchor cable is tensioned, the devices are connected in sequence. The first pair of rings 1 slides inside the second pair of rings 2. When the stepped ring of the second arc sleeve 22 of the same size abuts against the stepped ring of the first arc sleeve 12, the first pair of rings 1 and the second pair of rings 2 are concentric, and the anchor cable tensioning position is in the concentric position with the first pair of rings 1 and the second pair of rings 2, preventing the steel strand 6 (anchor cable) from being eccentric. The abutting first arc sleeve 12 and the second arc sleeve 22 can effectively avoid anchor cable disturbance.

[0035] The specific operating steps for using the anti-eccentricity and anti-disturbance anchor cable tensioning device disclosed in this invention are as follows:

[0036] S1: Install metal pads in the tensioning area;

[0037] S2: Install the second pair of rings and the first pair of rings onto the metal pad in sequence using steel strands.

[0038] S3: The axial force gauge and tool anchor are connected by steel strand at the end of the second pair of rings away from the metal pad.

[0039] S4: Combine the jacks to tension the anchor cables. The final tensioned state of the anchor cables is as follows: Figure 6 As shown.

[0040] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. An anchor cable tensioning device for preventing eccentricity and disturbance, characterized in that, The device includes a tensioning and installation mechanism, a first pair of rings, and a second pair of rings. Both the first pair of rings and the second pair of rings are connected inside the tensioning and installation mechanism. The first pair of rings includes a first circular ring, and a first arc-shaped sleeve with a stepped outer wall is connected to the outer side of the first circular ring. The second pair of rings includes a second circular ring, and a second arc-shaped sleeve with a stepped inner wall is connected to one side of the second circular ring. The stepped structure of the first arc-shaped sleeve is adapted to the stepped structure of the second arc-shaped sleeve. The cross-sections of the first arc-shaped sleeve and the second arc-shaped sleeve are circular. The stepped structure on the first arc-shaped sleeve has a height and diameter difference of 1 mm between adjacent steps. The stepped structure on the second arc-shaped sleeve also has a height and diameter difference of 1 mm between adjacent steps.

2. The anchor cable tensioning device for preventing eccentricity and disturbance as described in claim 1, characterized in that, The tensioning installation mechanism includes a metal pad, an axial force gauge, and a tool anchor. The metal pad is installed in the tensioning area, and a second pair of rings, a first pair of rings, an axial force gauge, and a tool anchor are sequentially connected to one side of the metal pad.

3. The anchor cable tensioning device for preventing eccentricity and disturbance as described in claim 1, characterized in that, The height of the first arc-shaped sleeve is 2cm, the inner diameter of the first ring is 6cm, and the maximum outer diameter of the first arc-shaped sleeve is 10cm.

4. The anchor cable tensioning device for preventing eccentricity and disturbance as described in claim 3, characterized in that, The height of the second pair of rings is 1.5cm, the height of the second arc-shaped sleeve is 1cm, the maximum outer diameter of the second arc-shaped sleeve is 8mm, the height of the second ring is 0.5cm, and the inner diameter of the second ring is 6cm.

5. The anchor cable tensioning device for preventing eccentricity and disturbance as described in claim 1, characterized in that, The top end of the first arc-shaped sleeve is flush with the top end of the first ring.

Images