CN218911545U

CN218911545U - Foundation ditch side slope support steel pipe soil nail pulling force detects anchor clamps

Info

Publication number: CN218911545U
Application number: CN202223160887.XU
Authority: CN
Inventors: 戴巍; 李清; 林华东; 冯青山; 麦凌威
Original assignee: Guangdong Jiaoke Testing Co ltd
Current assignee: Guangdong Jiaoke Testing Co ltd
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-04-25
Anticipated expiration: 2032-11-28

Abstract

The utility model provides a foundation ditch side slope support steel pipe soil nail pulling force detects anchor clamps, includes: the clamping frame of steel pipe soil nail has been centre gripping, the embedding has the fastening piece in the clamping frame, clamping frame top rotates and is connected with rings, rings hook and hold the tensiometer, the tensiometer top hook holds drawing mechanism. According to the device, under the action of the first inclined planes of the fastening block and the clamping frame which are mutually coupled, the fastening block can fasten and clamp the steel pipe soil nails, so that the clamping frame and the fastening block can effectively fasten and clamp the steel pipe soil nails; the two lifting rings are respectively connected to the top ends of the two clamping frames in a rotating mode, the top ends of the two lifting rings are close to the middle, after the steel pipe soil nails are clamped by the clamping frames, when the lifting rings are pulled upwards, the bottoms of the lifting rings can have a force of gathering towards the middle under the downward dragging action of the clamping frames, and therefore the steel pipe soil nails are effectively guaranteed to not slide relative to the fixing blocks and the clamping frames.

Description

Foundation ditch side slope support steel pipe soil nail pulling force detects anchor clamps

Technical Field

The utility model relates to the technical field of steel pipe soil nail drawing force detection, in particular to a clamp for detecting the drawing force of a foundation pit side slope supporting steel pipe soil nail.

Background

The temporary foundation pit is usually excavated in the construction process, a space is provided, the masonry operation of a foundation is carried out according to the position appointed by the design, in order to ensure that the foundation pit does not collapse, a foundation pit slope is required to be supported, a steel pipe soil nail wall is one of supporting modes, a weak loose stratum which is difficult to form holes such as cohesive soil and loose sand in a convection plastic state is suitable for being provided with a driven steel pipe, a grouting hole is arranged on the pipe wall of the steel pipe, grouting is carried out after driving, and in order to determine the construction quality of the steel pipe soil nail, the steel pipe soil nail dead center drawing force detection is required, and the foundation pit side slope supporting steel pipe soil nail drawing force detection device comprises a bottom plate and is characterized in that: the bottom plate upside is equipped with the roof, be equipped with two mutually symmetrical lifting mechanism between bottom plate and the roof, lifting mechanism includes first left pole and the first right pole articulated with the bottom plate, roof lower extreme middle part is equipped with first stay cord, first stay cord lower extreme is equipped with the tensiometer, the tensiometer lower extreme is equipped with the second stay cord, second stay cord lower extreme fixedly connected with couple, the couple can dismantle and be connected with steel pipe soil nail fixed establishment, the bottom plate is equipped with the square logical groove corresponding with steel pipe soil nail fixed establishment, fixed establishment in this contrast file includes left clamp splice and right clamp splice, wherein be equipped with left clamp splice and right clamp splice on left clamp splice respectively, steel pipe soil nail is placed in left clamp splice and right clamp splice, fix left clamp splice and right clamp splice through the bolt, under the bellied circumstances of steel pipe tip, left clamp splice and right clamp splice easily take place the phenomenon when drawing steel pipe soil nail, the back of skidding need fasten the bolt again, not only influence the result that the soil nail was drawn the power detects, work efficiency has been reduced.

Disclosure of Invention

The utility model aims to overcome the defects of the conditions, and aims to provide the clamp for detecting the drawing force of the soil nails of the steel pipe for supporting the foundation pit side slope, which can provide a clamping force for the steel pipe again when the soil nails of the steel pipe are clamped and drawn, so that the soil nails of the steel pipe are not easy to slide relative to the clamping frame, the detection result of the drawing force of the soil nails of the steel pipe is ensured, and the working efficiency is improved.

The utility model provides a foundation ditch side slope support steel pipe soil nail pulling force detects anchor clamps, includes: the clamping frame of steel pipe soil nail has been centre gripping, the embedding has the fastening piece in the clamping frame, clamping frame top rotates and is connected with rings, rings hook and hold the tensiometer, the tensiometer top hook holds drawing mechanism.

Further, the clamping frames are arched, two clamping frames are arranged symmetrically, and connecting portions are arranged at two ends of each clamping frame.

Further, the connecting portion is provided with a connecting hole, a connecting bolt penetrates into the connecting hole, a connecting nut is screwed at the other end of the connecting bolt, and the two clamping frames are fixedly connected through the connecting bolt and the connecting nut.

Further, the opposite inner side surfaces of the two clamping frames are provided with first inclined surfaces, the width of the top surfaces of the clamping frames is smaller than that of the bottom surfaces, and a gap with wide upper part and narrow lower part is formed between the two clamping frames and the steel pipe soil nails.

Further, the fastening block is arranged in an arch shape, two mutually symmetrical fastening blocks are arranged, a sand grinding layer is arranged on the inner side face of each fastening block, two opposite outer side faces of each fastening block are arranged in a second inclined plane, the width of the top face of each fastening block is larger than that of the bottom face, and the bottom ends of the fastening blocks are embedded into the gaps.

Further, a sleeve is fixedly connected to the top end of each clamping frame, a hanging ring is rotatably connected to the sleeve, and the top ends of the hanging rings gather towards the middle.

Further, a first hook is arranged at the bottom of the tension meter, a second hook is arranged at the top of the tension meter, and the first hook is hooked on the hanging ring.

Further, the drawing mechanism comprises a drawing screw rod and a drawing nut, the drawing nut is in threaded connection with the drawing screw rod, a fixed ring is fixedly connected to the bottom of the drawing screw rod, and the second hook is hooked on the fixed ring.

Further, the bottom of the drawing nut is rotationally attached with a bearing plate, a through hole is formed in the center of the bearing plate, and the screw rod slides through the bearing plate.

Further, the four corners of the bottom surface of the bearing plate are fixedly connected with supporting legs, and the bottoms of the supporting legs are fixedly connected with supporting plates.

Compared with the prior art, the utility model has the beneficial effects that:

(1) the opposite surfaces of two mutually symmetrical clamping frames that are equipped with in this device are equipped with first inclined plane, and the fastening piece is equipped with the second inclined plane with first inclined plane intercoupling, after the clamping frame centre gripping steel pipe soil nail with have the gap of width under with between the steel pipe soil nail, the fastening piece embedding gap after have great frictional force with between the steel pipe soil nail under the effect of the dull polish layer that it was equipped with, when upwards drawing the clamping frame, make the clamping steel pipe soil nail of centre gripping that the fastening piece can be fastened under the effect of first inclined plane and second inclined plane of intercoupling to the effectual clamping piece of avoiding slides with the relative steel pipe soil nail of clamping frame, still improved work efficiency when guaranteeing to draw experimental result accuracy.

(2) The two lifting rings are respectively and rotatably connected to the top ends of the two clamping frames, the top ends of the two lifting rings are close to the middle, after the steel pipe soil nails are clamped by the clamping frames, when the lifting rings are pulled upwards, the bottoms of the lifting rings can have a force gathering towards the middle under the downward dragging action of the clamping frames, so that the steel pipe soil nails are effectively ensured not to slide relative to the fixing blocks and the clamping frames.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

fig. 1 is a schematic diagram of the overall structure of a clamp for detecting the drawing force of soil nails of a foundation pit side slope support steel pipe.

Fig. 2 is a schematic structural view of a clamping frame and a fixing block in the foundation pit slope support steel pipe soil nail drawing force detection clamp.

In the figure: 1. soil nails of the steel pipes; 2. a support frame; 21. a connection part; 22. a connecting bolt; 23. a coupling nut; 24. a first inclined surface; 25. a slit; 26. a sleeve; 3. a fastening block; 31. a second inclined surface; 4. a hanging ring; 5. a tension meter; 51. a first hook; 52. a second hook; 6. a drawing mechanism; 61. drawing a screw; 611. a fixing ring; 62. drawing a nut; 7. a bearing plate; 8. a support leg; 81. and a support plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Specific examples:

as shown in fig. 1, a clamp for detecting drawing force of a soil nail 1 of a foundation pit side slope support steel pipe comprises: clamping frame 2 that the centre gripping has steel pipe soil nail 1, embedding has fastening piece 3 in the clamping frame 2, and clamping frame 2 top rotates and is connected with rings 4, and rings 4 hook and hold pull gauge 5, and pull gauge 5 top hooks hold draw gear 6.

As shown in fig. 1 and 2, the clamping frame 2 is an arched frame structure made of metal, the horizontal section of the clamping frame 2 is a hexagonal half, the clamping frame 2 is provided with two symmetrical clamping frames 2, two concave surfaces of the two clamping frames 2 correspond to each other, two ends of each clamping frame 2 are provided with connecting parts 21, two connecting holes are formed in each connecting part 21, the connecting holes in the two opposite connecting parts 21 are penetrated by connecting bolts 22, the other ends of the connecting bolts 22 are connected with connecting nuts 23 in a threaded manner, the aperture of each connecting hole is larger than the outer diameter of each connecting bolt 22 but smaller than the outer diameter of each connecting nut 23, when the connecting bolts 22 are not fastened with the clamping frame 2, the connecting bolts 22 and the connecting nuts 23 connect the two symmetrical clamping frames 2 into a hexagonal annular frame, opposite surfaces of the two clamping frames 2 are provided with first inclined planes 24, the width of the top surfaces of the clamping frames 2 is smaller than the width of the bottom surfaces, and a gap 25 which is wide up and narrow down is formed between the clamping frames 2 and the steel pipe nails 1.

The fastening block 3 is the frame structure who is the arch made by the metal, the horizontal cross-section of fastening block 3 is hexagon half, fastening block 3 is equipped with two blocks of mutual symmetry, two medial surfaces that two fastening block 3 are relative all are equipped with the frosting layer, thereby the friction coefficient between fastening block 3 and the steel pipe soil nail 1 increases the frictional force between the two, the second inclined plane 31 is established to the lateral surface that two fastening block 3 are relative, the second inclined plane 31 that fastening block 3 was equipped with and the first inclined plane 24 intercoupling that centre gripping frame 2 was equipped with, the width of fastening block 3 top surface is greater than the width of bottom surface, the bottom embedding of fastening block 3 is in the gap 25 between centre gripping frame 2 and steel pipe soil nail 1, fastening block 3 both sides closely laminate in steel pipe soil nail 1 and centre gripping frame 2, the relative face of two mutual symmetry centre gripping frame 2 that are equipped with in this device is equipped with first inclined plane 24, and fastening block 3 is equipped with the second inclined plane 31 with mutual coupling with first inclined plane 24, have the gap 25 that upper and lower narrow gap 25 is equipped with between centre gripping frame 2 centre gripping soil nail 1 and steel pipe soil nail 1 after centre gripping frame 2, the effect that fastening block 3 has the centre gripping frame 2 is equipped with the effect of two mutual symmetry and the steel pipe soil nail 1 is simultaneously improved, thereby the effect between the opposite friction coefficient of fastening block 3 and the centre gripping frame 1 and the effect of the centre gripping nail 1 is further improved.

The sleeve 26 is fixedly connected to the top surface of each clamping frame 2, the sleeve 26 is rotationally connected with the lifting rings 4, the lifting rings 4 are formed by bending steel rods, the lifting rings 4 are triangular, the lifting rings 4 are of annular structures with openings at the bottom edges, the bottom surfaces of the lifting rings 4 are hooked at the two ends of the sleeve 26, the tops of the two lifting rings 4 are mutually gathered, the two lifting rings 4 are respectively rotationally connected to the tops of the two clamping frames 2, the tops of the two lifting rings 4 are gathered towards the middle, after the clamping frames 2 clamp the steel pipe soil nails 1, when the lifting rings 4 are pulled upwards, the bottoms of the lifting rings 4 can have forces gathered towards the middle under the downward dragging action of the clamping frames 2, so that the steel pipe soil nails 1 are effectively clamped by the clamping frames 2 and the fixing blocks, and the steel pipe soil nails 1 are effectively guaranteed not to slide relatively between the steel pipe soil nails 1 and the fixing blocks and the clamping frames 2.

The bottom of the tension meter 5 is provided with a first hook 51, the top of the tension meter 5 is provided with a second hook 52, and the first hook 51 is hooked at the vertex angle position of the two hanging rings 4.

The drawing mechanism 6 comprises a drawing screw 61 and a drawing nut 62, the drawing nut 62 is in threaded connection with the drawing screw 61, the drawing screw 61 is vertically arranged, a fixed ring 611 is arranged at the bottom of the drawing screw 61, a second hook 52 is hooked on the fixed ring 611, a supporting plate 7 is rotationally attached to the bottom of the nut, the supporting plate 7 is made of metal plates, a through hole is formed in the center of each metal plate, the drawing screw 61 slides through the through hole, the supporting plate 7 is used for supporting the nut, supporting legs 8 are fixedly connected to four corners of the bottom surface of the supporting plate 7, and supporting plates 81 are fixedly connected to the bottoms of the supporting legs 8.

When the monitoring clamp is used, the fixing frame is clamped at the exposed end of the steel pipe soil nail 1 inserted on the foundation pit slope, the top of the fixing frame and the end part of the steel pipe soil nail 1 are basically flush, the two fixing frames are clamped on the steel pipe soil nail 1 through the connecting bolt 22 and the connecting nut 23, the bottom of the fastening block 3 penetrates into a gap 25 between the steel pipe soil nail 1 and the top of the fixing frame, the fastening block 3 is knocked downwards by using a knocking hammer, under the action of the first inclined plane 24 and the second inclined plane 31, the fastening block 3 is tightly attached to the steel pipe soil nail 1 and the clamping frame 2, the tension meter 5 is hooked on the hanging ring 4 at the top of the clamping frame 2, the top second hook 52 of the tension meter 5 is hooked on the fixing ring at the bottom of the drawing screw 61, the drawing screw 61 penetrates through the through hole of the supporting plate 7, the supporting leg 8 at the bottom of the supporting plate 7 is supported on the foundation pit, the drawing nut 62 is screwed on the top of the drawing screw 61 to the drawing screw 61, the drawing nut 62 is attached to the supporting plate 7 through the drawing nut 62, the screw 62 is pulled upwards by a spanner, the screw 61 is pulled upwards, and the tension meter 1 can measure the tension meter 1.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a foundation ditch side slope support steel pipe soil nail pulling force detects anchor clamps which characterized in that includes: clamping frame (2) that clamp held steel pipe soil nail (1), clamping frame (2) are interior to be embedded with fastening block (3), clamping frame (2) top is rotated and is connected with rings (4), rings (4) hook and hold tensiometer (5), pull mechanism (6) are held to tensiometer (5) top hook.

2. The foundation pit side slope support steel pipe soil nail pulling force detection fixture according to claim 1, wherein: the clamping frames (2) are arched, two clamping frames (2) are symmetrically arranged, and connecting portions (21) are arranged at two ends of each clamping frame (2).

3. The foundation pit slope supporting steel pipe soil nail pulling force detection fixture according to claim 2, wherein: the connecting part (21) is provided with a connecting hole, a connecting bolt (22) penetrates into the connecting hole, a connecting nut (23) is screwed at the other end of the connecting bolt (22), and the two clamping frames (2) are fixedly connected with the connecting nut (23) through the connecting bolt (22).

4. A foundation pit side slope support steel pipe soil nail pull force detection fixture according to claim 3, wherein: the two opposite inner side surfaces of the clamping frames (2) are provided with first inclined surfaces (24), the width of the top surfaces of the clamping frames (2) is smaller than that of the bottom surfaces, and gaps (25) with wide upper parts and narrow lower parts are formed between the two clamping frames (2) and the steel pipe soil nails (1).

5. The foundation pit side slope support steel pipe soil nail pulling force detection fixture of claim 4, wherein: the fastening block (3) is arranged in an arch shape, the fastening block (3) is provided with two mutually symmetrical fastening blocks, the inner side faces of the fastening block (3) are opposite to each other and are provided with a sand grinding layer, the outer side faces of the fastening block (3) are opposite to each other and are provided with a second inclined face (31), the width of the top face of the fastening block (3) is larger than that of the bottom face, and the bottom end of the fastening block (3) is embedded into the gap (25).

6. The foundation pit side slope support steel pipe soil nail pulling force detection fixture according to claim 5, wherein: each clamping frame (2) top all fixedly connected with sleeve (26), sleeve (26) rotate and are connected with rings (4), rings (4) top is gathered together to the centre.

7. The foundation pit side slope support steel pipe soil nail pull force detection fixture of claim 6, wherein: the bottom of the tension meter (5) is provided with a first hook (51), the top of the tension meter (5) is provided with a second hook (52), and the first hook (51) is hooked on the hanging ring (4).

8. The foundation pit side slope support steel pipe soil nail pull force detection fixture of claim 7, wherein: the drawing mechanism (6) comprises a drawing screw (61) and a drawing nut (62), the drawing nut (62) is in threaded connection with the drawing screw (61), a fixed ring (611) is fixedly connected to the bottom of the drawing screw (61), and the second hook (52) is hooked on the fixed ring (611).

9. The foundation pit side slope support steel pipe soil nail pull force detection fixture of claim 8, wherein: the bottom of the drawing nut (62) is rotationally attached with a bearing plate (7), a through hole is formed in the center of the bearing plate (7), and the drawing screw (61) slides through the through hole.

10. The foundation pit side slope support steel pipe soil nail pull force detection fixture of claim 9, wherein: the four corners of the bottom surface of the supporting plate (7) are fixedly connected with supporting legs (8), and the bottoms of the supporting legs (8) are fixedly connected with supporting plates (81).