Device for detecting displacement of anchor head of supporting anchor rod

Abstract

The utility model discloses a displacement detection device for an anchor head of a supporting anchor rod. The displacement detection device comprises a supporting structure, a center hole jack, a tool anchor, a displacement detector auxiliary positioning assembly and a displacement detector, the bottom end of the center hole jack is connected with the supporting structure, and the top end of the center hole jack is connected with the tool anchor. The auxiliary positioning assembly of the displacement detector comprises a disc, a sleeve and a strong hoop. One side of the disc is provided with a displacement detector, and the middle part of the other side of the disc is connected with one end of a sleeve; the other end of the sleeve is sleeved on the anchor head of the supporting anchor rod; the portion, sleeved on the anchor head, of the sleeve is provided with a groove, and the powerful hoop is sleeved at the end, provided with the groove, of the sleeve to enable the sleeve and the anchor head to be connected in a fastening mode. Through the design of the displacement detector auxiliary positioning assembly and the displacement detector, the displacement detector auxiliary positioning assembly and the anchor head of the supporting anchor rod move synchronously, so that the displacement detector installed on the displacement detector auxiliary positioning assembly can measure the displacement of the anchor head timely and accurately, and the displacement detector is convenient to use, reliable in result and high in practicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to engineering technical field, in particular to a kind of support anchor rod anchor head displacement detection device. BACKGROUND

[0002] Support anchor rod is usually used to support and reinforce side slope, tunnel, dam body etc. In order to test the supporting effect of support anchor rod, the industry usually carries out field pullout test before and after anchor rod engineering construction to determine whether the anchor rod before construction or after construction can meet the design requirements.

[0003] When supporting anchor rod pullout bearing capacity acceptance monitoring, displacement detector is usually placed at the appropriate position of anchor head to read the corresponding anchor head displacement data under each load. But the existing support anchor rod uses 1x7 (strand), Φ15.2~17.8 prestressed steel strand, and the anchor head has uneven cross section, which leads to the problem of difficult installation and fixation of displacement measuring instrument due to small cross-sectional area, and it is difficult to accurately measure the displacement of anchor head. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of support anchor rod anchor head displacement detection device, which can solve the problem of inaccurate anchor head displacement detection in the prior art.

[0005] To solve the above technical problems, the utility model provides a kind of support anchor rod anchor head displacement detection device, comprising: support structure, through-hole jack, tool anchor, displacement detector auxiliary positioning assembly and displacement detector;

[0006] The through-hole jack is inclinedly arranged, and its bottom end is connected with the support structure, and its top end is connected with the tool anchor;

[0007] The anchor head of the support anchor rod to be detected penetrates the support structure, through-hole jack and tool anchor in sequence, and is connected with the displacement detector auxiliary positioning assembly;

[0008] The displacement detector auxiliary positioning assembly comprises a disc, a sleeve and a strong clamp; one side of the disc is installed with the displacement detector, and the other side thereof is connected with one end of the sleeve; the other end of the sleeve is sleeved on the anchor head of the support anchor rod; the part of the sleeve sleeved on the anchor head is provided with symmetrical grooves, and the strong clamp is sleeved on one end of the sleeve with grooves to tightly connect the sleeve and anchor head.

[0009] In a preferred embodiment of the utility model, the diameter of the disc is 15~25cm, and the thickness is 0.5~1cm.

[0010] In a preferred embodiment of the utility model, the inner diameter of the sleeve is 15~25mm, and the length is 20~30cm.

[0011] In a preferred embodiment of the utility model, the length of the slot is 1 / 3-1 / 2 of the length of the sleeve.

[0012] In a preferred embodiment of the utility model, the width of the slot is 2-5mm.

[0013] In a preferred embodiment of the utility model, the support structure comprises a support frame, a pedestal and a pressure bearing plate; the support frame is arranged vertically, the pedestal is installed on one side of the support frame, and the pressure bearing plate is installed on the side of the pedestal facing the through jack.

[0014] The utility model discloses a support anchor rod anchor head displacement detection device, through the design of displacement detector auxiliary positioning assembly and displacement detector, makes displacement detector auxiliary positioning assembly and the anchor head of support anchor rod synchronous movement, thereby making the displacement detector installed on it can timely, accurately measure the displacement of anchor head, convenient to use, reliable result, and practicality is strong. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic diagram of a preferred embodiment of the utility model a support anchor rod anchor head displacement detection device;

[0016] Figure 2 It is the front view structure schematic diagram of the sleeve;

[0017] Figure 3 It is the cross section structure schematic diagram of the sleeve with the slot one end;

[0018] The marks of various components in the drawings are as follows:

[0019] 10. support structure, 11. support frame, 12. pedestal, 13. pressure bearing plate;

[0020] 20. through jack, 30. tool anchor;

[0021] 40. displacement detector auxiliary positioning assembly, 41. disc, 42. sleeve, 43. strong hoop, 421. slot;

[0022] 50. displacement detector, 60. support anchor rod. DETAILED DESCRIPTION

[0023] The preferred embodiments of the utility model are described in detail below in combination with the drawings, so that the advantages and characteristics of the utility model can be more easily understood by the person skilled in the art, and the protection scope of the utility model can be more clearly and explicitly defined.

[0024] Please refer to Figure 1The utility model embodiment includes:

[0025] Embodiment 1

[0026] The utility model discloses a support anchor rod anchor head displacement detection device, include: support structure 10, through the jack 20, tool anchor 30, displacement detection appearance auxiliary positioning subassembly 40 and displacement detection appearance 50.

[0027] The through jack 20 is arranged obliquely, and the bottom end is connected with the support structure 10, and the top end is connected with the tool anchor 30.

[0028] Specifically, the support structure 10 includes support frame 11, pedestal 12 and pressure plate 13. The support frame 11 is arranged vertically, the pedestal 12 is installed on one side of the support frame 11 obliquely, and the inclination angle is consistent with the inclination angle of the through jack 20, the pressure plate 13 is a stainless steel plate, and is installed on the side of the pedestal 12 towards the through jack 20.

[0029] The anchor head of the support anchor rod 60 to be detected penetrates the support structure 10, the through jack 20 and the tool anchor 30 in turn, and specifically penetrates the support frame 11, the pedestal 12, the pressure plate 13, the through jack 20 and the tool anchor 30, and finally is connected with the displacement detection appearance auxiliary positioning subassembly 40.

[0030] The displacement detection appearance auxiliary positioning subassembly 40 includes disc 41, sleeve pipe 42 and strong hoop 43. One side of the disc 41 is installed with the displacement detection appearance 50, and the other side middle part is fixedly connected with one end of the sleeve pipe 42, such as bonding connection, and the other end of the sleeve pipe 42 is fixedly sleeved on the anchor head of the support anchor rod 60.

[0031] Specifically, the disc 41 is a hard disc with a diameter of 15-25cm and a thickness of 0.5-1cm, such as a hard plastic disc or an iron disc. In the embodiment, a hard plastic disc with a diameter of 20cm and a thickness of 0.5cm is selected. The cross-sectional area of the disc 41 is much larger than the cross-sectional area of the support anchor rod 60, which can provide sufficient installation space for the displacement detection appearance 50, ensure the stability of the installation of the displacement detection appearance 50, and help to improve the accuracy of the displacement of the anchor head.

[0032] The sleeve pipe 42 is a hard plastic pipe with an inner diameter of 15-25mm and a length of 20-30cm, such as an HDPE pipe. The inner diameter of the sleeve pipe 42 can be selected according to the diameter of the support anchor rod 60, and is required to be greater than the outer diameter of the support anchor rod 60. In the embodiment, the sleeve pipe 42 is an HDPE pipe with an inner diameter of 20mm and a length of 25cm.

[0033] The sleeve 42 is sleeved on the anchor head, and the strong hoop 43 is sleeved on one end of the sleeve 42 with the slot 421, and the strong hoop 43 is screwed to tightly connect the sleeve 42 and the anchor head. The length of the slot 421 is 1 / 3-1 / 2 of the length of the sleeve 42, and the width is 2-5 mm. Through the design of the slot 421, the strong hoop 43 can be screwed to fix the sleeve 42 and the anchor head of the support anchor rod 60. In the embodiment, the number of the slots 421 on the sleeve 42 is 2, the length is 1 / 3 of the length of the sleeve 42, and the width is 3 mm.

[0034] The strong hoop 43 is a 304 stainless steel hand screwing strong hoop.

[0035] The displacement detector 50 is fixed on the disc 41 of the displacement detector auxiliary positioning assembly 40, and the displacement detector auxiliary positioning assembly 40 is detachably fixedly connected with the anchor head of the support anchor rod 60, so that when the through jack 20 applies a load to the support anchor rod 60 to deform the support anchor rod 60 and cause displacement of the anchor head, the displacement detector 50 can timely and accurately measure the displacement of the anchor head, the timeliness of measurement is good, the accuracy of the result is high, and the measurement method is convenient and effective.

[0036] The utility model discloses a support anchor rod anchor head displacement detection device, through the design of displacement detector auxiliary positioning assembly and displacement detector, make displacement detector auxiliary positioning assembly and support anchor rod's anchor head synchronous movement to make the displacement detector of installation on it can timely, accurately measure the displacement of anchor head, convenient to use, the result is reliable, and the practicality is strong.

[0037] The above-mentioned is only the embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent flow conversion of the contents of the utility model specification and drawings, or direct or indirect application in other related technical fields, are all included in the patent protection range of the utility model.

Claims

1. A support anchor rod anchor head displacement detection device, characterized in that, The utility model relates to a kind of auxiliary positioning assembly for displacement detector, including: Support structure, through jack, tool anchor, displacement detector auxiliary positioning assembly and displacement detector; The through jack is arranged obliquely, and its bottom end is connected with the support structure, and its top end is connected with the tool anchor; The anchor head of the support anchor rod to be detected is sequentially penetrated through the support structure, the through jack and the tool anchor, and is connected with the displacement detector auxiliary positioning assembly; The displacement detector auxiliary positioning assembly includes a disc, a sleeve and a strong clamp;One side of the disc is installed with the displacement detector, and the other side of the disc is connected with one end of the sleeve;The other end of the sleeve is sleeved on the anchor head of the support anchor rod;The part of the sleeve sleeved on the anchor head is provided with symmetrical grooves, and the strong clamp is sleeved on the end of the sleeve with grooves to tightly connect the sleeve and the anchor head.

2. A support anchor rod anchor head displacement detection device according to claim 1, characterized in that, The diameter of the disc is 15-25 cm, and the thickness is 0.5-1 cm.

3. The support anchor rod anchor head displacement detection device according to claim 1, characterized in that, The inner diameter of the sleeve is 15-25 mm, and the length is 20-30 cm.

4. A support anchor rod anchor head displacement detection device according to claim 3, characterized in that, The length of the groove is 1 / 3-1 / 2 of the length of the sleeve.

5. A support anchor rod anchor head displacement detection device according to claim 4, characterised in that, The width of the groove is 2-5 mm.

6. A support anchor rod anchor head displacement detection device according to any one of claims 1-5, characterized in that, The support structure includes a support frame, a pedestal and a pressure plate;The support frame is arranged vertically, the pedestal is installed on one side of the support frame, and the pressure plate is installed on the side of the pedestal facing the through jack.

Images