CN213329007U

CN213329007U - Anchor cable tensioning device

Info

Publication number: CN213329007U
Application number: CN202021885904.4U
Authority: CN
Inventors: 张元鹏; 杨永; 刘艳峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-02
Filing date: 2020-09-02
Publication date: 2021-06-01
Anticipated expiration: 2030-09-02

Abstract

The utility model discloses an anchor cable tensioning device, which comprises a lower backing plate and an upper backing plate, wherein a left clamping block is fixedly arranged on one side between the lower backing plate and the upper backing plate, a right clamping block is fixedly arranged on the other side, the inner side surface of the right clamping block is provided with a chute, a sliding clamping block is slidably clamped in the chute, a bolt penetrating into the chute is arranged on the right clamping block in a threaded manner, the tail end of the bolt is movably connected with one side of the sliding clamping block, semicircular clamping grooves are respectively arranged on the side surfaces of the sliding clamping block adjacent to the left clamping block, the two semicircular clamping grooves form a circular clamping groove, and an elastic clamping piece capable of being fixedly clamped in the circular clamping groove is fixedly arranged on the anchor cable; the utility model discloses the slot aperture is adjusted to accessible slip clamp splice to adjust the clamp force of pressing from both sides the groove to elasticity clamping piece and anchor rope, elasticity clamping piece can be followed and pressed from both sides the groove and last down when making the stretch-draw, thereby can carry out the stretch-draw on a large scale to the anchor rope, when anchor rope stretch-draw completion back, the adjustable double-layered slot aperture that reduces, presss from both sides elasticity clamping piece and anchor rope clamp, prevents that the anchor rope from returning.

Description

Anchor cable tensioning device

Technical Field

The utility model relates to a tensioning equipment especially relates to an anchor rope tensioning equipment.

Background

At present, in side slope, foundation pit and retaining wall engineering in all subways, hydropower, municipal works and house buildings, along with the continuous expansion of the field of foundation engineering, the application of a prestressed anchor cable is more and more extensive, one end of the prestressed anchor cable penetrates through a soft rock stratum or a sliding surface by a drill hole to be anchored in a hard rock stratum (called an inner anchor head), and then a jack is used for tensioning at the other free end (called an outer anchor head), so that pressure is applied to the rock stratum to anchor an unstable rock mass. In the actual construction process, the prestressed anchor cable tensioning device is matched with the prestressed anchor cable, so that the jack can stretch and fix the prestressed anchor cable.

The prestressed anchor cable tensioning device commonly used at present comprises an anchorage device and a backing plate, wherein the prestressed anchor cable penetrates through the anchorage device and the backing plate, one end of the prestressed anchor cable is fixed, the other end of the prestressed anchor cable is tensioned by a jack, an elastic clamping piece is arranged between the backing plate and the anchorage device, the elastic clamping piece is clamped on the prestressed anchor cable, the lower end of the elastic clamping piece is embedded into a hole position of the anchorage device, and the backing plate is directly pressed on the upper end of the elastic clamping piece, so that when the other end of the prestressed anchor cable is tensioned by the jack, the elastic clamping piece moves downwards and is matched with the hole position in the anchorage device to gradually clamp the prestressed anchor cable, the elastic clamping piece is gradually pressed into the hole position of the anchorage device along with the tensioning of the jack, when the tensioning force of the jack on the prestressed anchor cable exceeds a certain tension, the elastic clamping piece can tightly clamp the prestressed anchor cable in the hole position, the prestressed anchor cable above the anchorage device can not be stretched freely any more, and at the moment, the prestressed anchor cable below the anchorage device can only be stretched, so that the stretching beyond a certain tension value is meaningless, and if the prestressed anchor cable is stretched in one step, the prestressed anchor cable and the elastic clamping piece can slide, so that the phenomenon that the elastic clamping piece can not clamp the prestressed anchor cable can be caused, and the prestressed anchor cable fails.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of prior art, the utility model provides an anchor rope tensioning equipment can carry out the aperture to ground tackle clamp hole and adjust to adjust the size of clamp force, not only make things convenient for the jack to last the stretch-draw to the anchor rope, and the reducible clamp hole of stretch-draw after accomplishing presss from both sides the anchor rope tightly, thereby makes things convenient for the stretch-draw of anchor rope and the fixed after the stretch-draw.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model provides an anchor rope tensioning equipment, includes lower bolster and upper padding plate, all be provided with the through-hole that supplies the anchor rope to pass through on lower bolster and the upper padding plate, the fixed mounting of one side between lower bolster and the upper padding plate has left clamp splice, opposite side fixed mounting between lower bolster and the upper padding plate has right clamp splice, the medial surface of right clamp splice is provided with the spout, slide in the spout and clamp the slip clamp splice, the bolt that runs through in the spout is installed to right clamp splice upper thread, the end of bolt and one side swing joint of slip clamp splice, all be provided with semi-circular double-layered groove, and two on the side that slip clamp splice and left clamp splice are adjacent circular double-layered groove is constituteed to semi-circular double-layered groove, fixed mounting has the elasticity clamping piece that can fix double-layered in circular double-layered inslot on the.

As an optimal technical scheme of the utility model, be provided with the space between the upper end of left clamp splice and right clamp splice.

As an optimized technical scheme of the utility model, the bottom surface of lower bolster is provided with the anchor rope go-between.

As an optimized technical scheme of the utility model, but pass through the rotatable swing joint of bearing between bolt and the slip clamp splice.

As an optimized technical proposal of the utility model, the elastic clamping piece is provided with a crack.

Compared with the prior art, the utility model discloses the beneficial effect that can reach is:

the utility model discloses the slot aperture is adjusted to accessible slip clamp splice to adjust the clamp force of pressing from both sides the groove to elasticity clamping piece and anchor rope, elasticity clamping piece can be followed and pressed from both sides the groove and last down when making the stretch-draw, thereby can carry out the stretch-draw on a large scale to the anchor rope, when anchor rope stretch-draw completion back, the adjustable double-layered slot aperture that reduces presss from both sides elasticity clamping piece and anchor rope clamp, the anchor rope returns and contracts.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

wherein: 1. a lower base plate; 2. an upper base plate; 3. a left clamp block; 4. a right clamp block; 5. an anchor cable; 6. an elastic clip; 7. a semicircular clamping groove; 8. a sliding clamping block; 9. a chute; 10. a bolt; 11. and a bearing.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Referring to fig. 1, an anchor cable tensioning device includes a lower pad 1 and an upper pad 2, the lower pad 1 and the upper pad 2 are both provided with through holes for an anchor cable 5 to pass through, a left clamping block 3 is fixedly arranged at one side between the lower backing plate 1 and the upper backing plate 2, a right clamping block 4 is fixedly arranged at the other side between the lower backing plate 1 and the upper backing plate 2, the inner side surface of the right clamping block 4 is provided with a sliding chute 9, a sliding clamping block 8 is slidably clamped in the sliding chute 9, a bolt 10 penetrating into the sliding groove 9 is installed on the right clamping block 4 in a threaded manner, the tail end of the bolt 10 is movably connected with one side of the sliding clamping block 8, the side surfaces of the sliding clamping block 8 adjacent to the left clamping block 3 are provided with semicircular clamping grooves 7, and the two semicircular clamping grooves 7 form a circular clamping groove, and an elastic clamping piece 6 which can be fixedly clamped in the circular clamping groove is fixedly arranged on the anchor cable 5.

A gap is formed between the upper ends of the left clamping block 3 and the right clamping block 4, so that the elastic clamping piece 6 can be conveniently placed in the gap before tensioning.

The bottom surface of the lower backing plate 1 is provided with an anchor cable connecting ring, and after tensioning is completed, one end of an anchor cable can be bound on the anchor cable connecting ring, so that the elastic clamping piece 6 is prevented from being clamped and loosened, and the anchor cable is prevented from retracting.

The bolt 10 and the sliding clamping block 8 are rotatably and movably connected through a bearing 11, so that the bolt 10 can be rotated conveniently to drive the sliding clamping block 8 to move.

The elastic clamping piece 6 is provided with a crack, so that the compression deformation capability of the elastic clamping piece 6 is improved.

Specifically, when the device is used, one end of an anchor cable 5 is connected with a jack, the anchor cable is tensioned by the jack, in the tensioning process, a circular clamping groove is in a state of large aperture, so that an elastic clamping piece 6 can continuously descend along the circular clamping groove in the tensioning process, when the tensioning length reaches the total stroke length of the jack, the jack cannot be tensioned continuously, at the moment, a bolt 10 is rotated, a sliding clamping block 8 is driven to move forwards through the bolt 10, the aperture of the circular clamping groove is reduced, the elastic clamping piece 6 and the anchor cable 5 are clamped and fixed, then the jack is reset and is connected with the anchor cable 5 again, the bolt 10 is rotated reversely, the sliding clamping block 8 moves backwards and resets, the aperture of the circular clamping groove is enlarged, the anchor cable 5 can be tensioned again through the jack, the tensioning is repeated until tensioning is completed, the bolt 10 is rotated again, the aperture of the circular clamping groove is reduced, the elastic clamping piece 6 and the anchor cable 5 are clamped and fixed, and finishing the whole tensioning process.

The embodiments of the present invention are not limited to the above embodiments, and according to the contents of the above embodiments of the present invention, the above preferred embodiments can also make modifications, replacements or combinations of other forms by using conventional technical knowledge and conventional means in the field without departing from the basic technical idea of the present invention, and the obtained other embodiments all fall within the scope of the present invention.

Claims

1. The anchor cable tensioning device comprises a lower backing plate (1) and an upper backing plate (2), and is characterized in that through holes for anchor cables (5) to pass through are formed in the lower backing plate (1) and the upper backing plate (2), a left clamping block (3) is fixedly mounted on one side between the lower backing plate (1) and the upper backing plate (2), a right clamping block (4) is fixedly mounted on the other side between the lower backing plate (1) and the upper backing plate (2), a sliding groove (9) is formed in the inner side face of the right clamping block (4), a sliding clamping block (8) is slidably clamped in the sliding groove (9), a bolt (10) penetrating into the sliding groove (9) is mounted on the upper thread of the right clamping block (4), the tail end of the bolt (10) is movably connected with one side of the sliding clamping block (8), a semicircular clamping groove (7) is formed in the side face, adjacent to the sliding clamping block (8) and the left clamping block (3), and the two semicircular clamping grooves (7) form a circular clamping groove, and an elastic clamping piece (6) which can be fixedly clamped in the circular clamping groove is fixedly arranged on the anchor cable (5).

2. An anchor rope tensioning device as claimed in claim 1, wherein a gap is provided between the upper ends of the left and right clamping blocks (3, 4).

3. A cable tensioning device according to claim 1, wherein the underside of the lower pad (1) is provided with cable attachment rings.

4. Anchor cable tensioning device according to claim 1, characterized in that the bolt (10) is rotatably movably connected to the sliding clamping block (8) by means of a bearing (11).

5. A cable bolt tensioning arrangement as claimed in claim 1, wherein the resilient clip (6) is provided with a slit therein.