CN111005402A

CN111005402A - Adjustable can dismantle benchmark roof beam

Info

Publication number: CN111005402A
Application number: CN201911296627.5A
Authority: CN
Inventors: 魏纲; 黄时雨; 齐永洁; 周鑫鑫; 刘立源; 李志远; 章亦然; 朱彦华
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Zhejiang University City College ZUCC
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-04-14

Abstract

The invention discloses an adjustable detachable reference beam which comprises a base, a T-shaped channel, a T-shaped sliding block, a compression bolt, a strip-shaped connecting plate, a vertical hollow rod, a fixing bolt, a solid inserted rod and an instrument base. The invention is fixed on the ground through four expansion bolts, so that the stability and the accuracy of instrument measurement are ensured under the condition of little damage to the working environment; the position of the vertical rod is adjusted in the direction of the T-shaped sliding groove through the T-shaped sliding block, meanwhile, the height of the solid inserted rod can be adjusted through four fixing bolts at the top of the vertical hollow rod, and the height and the angle of the instrument base can also be adjusted through clamping bolts on a vertical clamping plate of the instrument base; the T-shaped sliding block, the strip-shaped connecting plate, the vertical hollow rod, the solid inserted rod and the instrument base can be detached, the carrying is convenient, and the installation method is simple. Through the mode, the invention can meet the requirements of the measuring instrument on various positions in actual work.

Description

Adjustable can dismantle benchmark roof beam

Technical Field

The invention belongs to the technical field of reference beams, and particularly relates to an adjustable detachable reference beam.

Background

In engineering inspection or experimental test, related instruments are generally required to be arranged for data collection of related parameters, and related reference beams are required to be equipped for erection of some test instruments. The reference beam is used as a base of the testing instrument and a reference point in the measurement work, and has enough stability, so that the influence of external factors such as vibration and disturbance of a tested object can be avoided, the measurement error is reduced, and the accuracy of data is ensured.

The existing erection of a reference beam is that a reference pile is arranged on the ground, and then the reference beam is fixed on the reference pile; and the condition of the field is also utilized, such as some main structures, building blocks, steel bar frames and the like, for erecting the reference beam. The above-described method has the following problems: (1) after the erection of the reference beam is finished, multi-dimensional adjustment cannot be generally performed, and the arrangement requirements of instruments are difficult to completely conform; (2) because of the limitation of field conditions, the operation is complicated in the process of erection and disassembly, and time, manpower and material resources are wasted; (3) because of the temporary erection, the stability is often difficult to ensure, and the accuracy of the measurement of the instrument is influenced.

Disclosure of Invention

The invention aims to provide an adjustable detachable reference beam aiming at the defects of the prior art. The reference beam can be conveniently installed and detached, and can be subjected to multi-dimensional adjustment according to actual working requirements, so that the stability is high.

The purpose of the invention is realized by the following technical scheme: an adjustable detachable reference beam comprises a base, a T-shaped channel, a T-shaped sliding block, a compression bolt, a strip-shaped connecting plate, a vertical hollow rod, a fixing bolt, a solid inserted rod and an instrument base; the instrument base comprises a platform plate, a clamping bolt and a clamping bolt nut; a T-shaped channel is formed in the base, and the T-shaped sliding block is connected with the T-shaped channel in a sliding mode; the strip-shaped connecting plate is connected to the top of the T-shaped sliding block through a compression bolt; the strip-shaped connecting plate is fixedly connected with the vertical hollow rod; the solid inserted bar is inserted into the vertical hollow bar; the top of the vertical hollow rod is provided with fixing threaded holes which are uniformly distributed and are centrosymmetric, and a fixing bolt is screwed into the fixing threaded holes and abuts against the solid inserted rod to fix the solid inserted rod; the platform plate is provided with a crack and is sleeved on the solid inserted rod in a penetrating manner, the clamping plate is fixedly connected with the platform plate along the crack, the vertical clamping plate is provided with a clamping plate through hole, and the clamping bolt penetrates through the clamping plate through hole and is screwed with the clamping bolt and the nut.

Further, the reference beam further comprises expansion bolts, and the base is fixed on the ground through the expansion bolts.

Furthermore, lubricating oil is coated in the T-shaped groove.

Further, the hole diameters of the pressing threaded hole and the strip-shaped plate through hole are the same.

Further, the strip-shaped connecting plate is perpendicular to the vertical hollow rod.

The invention has the following beneficial effects:

1. the base of the reference beam is fixed on the ground through the four expansion bolts, so that the stability of the device is ensured under the condition of small damage to the working environment, and the accuracy of the measurement of an instrument is ensured.

2. The reference beam can adjust the position of the vertical rod in the direction of the T-shaped sliding groove through the T-shaped sliding block, can adjust the height of the solid inserted bar through four fixing bolts at the top of the vertical hollow rod, and can also adjust the height and the angle of the instrument base through the clamping bolts on the vertical clamping plate of the instrument base. Through the mode, the requirements of the measuring instrument on various positions in actual work can be met.

3. The T-shaped sliding block, the strip-shaped connecting plate, the vertical hollow rod, the solid inserted bar and the instrument base of the reference beam can be detached, so that the reference beam is convenient to carry and simple in installation method.

Drawings

FIG. 1 is a schematic structural view of an adjustable detachable reference beam;

FIG. 2 is a schematic view of a base structure;

FIG. 3 is a front view of the base structure;

FIG. 4 is a schematic view of a fixing bolt;

FIG. 5 is a schematic view of the instrument base structure;

reference numerals: 1. an instrument base; 11. a platform plate; 12. a clamping plate; 13. a clamping plate through hole; 2. clamping the bolt; 21. clamping the bolt and the nut; 3. a solid plunger; 4. fixing the bolt; 41. fixing the threaded hole; 5. a hollow shaft; 6. a strip-shaped connecting plate; 61. a strip-shaped plate through hole; 7. a hold-down bolt; 71. pressing the threaded hole; 8. a T-shaped slider; 9. a T-shaped channel; 10. a base; 101. an expansion bolt.

Detailed Description

Referring to fig. 1-5, the invention relates to an adjustable detachable reference beam which comprises a base 10, a T-shaped channel 9, a T-shaped sliding block 8, a compression bolt 7, a strip-shaped connecting plate 6, a vertical hollow rod 5, a fixing bolt 4, a solid inserted rod 3 and an instrument base 1. The material of the device parts can be all steel. Four expansion bolts 101 are arranged at four corners of the base 10, and the four expansion bolts 101 penetrate through the base 10 to fix the base on the ground. Two T-shaped grooves 9 which are parallel to each other are symmetrically formed in the base 10, and the two T-shaped sliding blocks 8 are respectively positioned in the T-shaped grooves 9. The outer contour dimension of the T-shaped sliding block 8 is the same as the section dimension of the T-shaped groove 9, the T-shaped sliding block 8 can freely slide in the T-shaped groove 9, and a layer of lubricating oil is coated in the T-shaped groove 9. The top of the T-shaped sliding block 8 is provided with two pressing threaded holes 71, and the two ends of the strip-shaped connecting plate 6 are provided with strip-shaped plate through holes 61 with the same diameter at the positions corresponding to the pressing threaded holes 71; the compression bolt 7 penetrates through the strip-shaped plate through hole 61 and is screwed with the compression threaded hole 71, so that the strip-shaped connecting plate 6 is fixedly and tightly connected with the T-shaped sliding block 8 and the base 10. The strip-shaped connecting plate 6 is welded with the vertical hollow rod 5 and is mutually vertical; the solid inserted bar 3 is inserted into the vertical hollow bar 5; the top of the vertical hollow rod 5 is provided with four horizontal fixing threaded holes 41 which are uniformly distributed and are centrosymmetric, the fixing bolt 4 is in threaded connection with the fixing threaded holes 41, and the end part of the screw rod of the fixing bolt 4 tightly abuts against the solid inserted rod 3 to fix the solid inserted rod. The solid bayonet 3 has the same outer diameter as the hollow rod 5. Instrument base 1 wears to overlap on solid inserted bar 3, instrument base 1 includes horizontally landing slab 11, vertical clamp plate 12 and clamp bolt 2 and the clamp bolt nut 21 that corresponds, landing slab 11 is opened has a crack, two clamp plates 12 are respectively along the perpendicular welding in landing slab 11 below in both sides of crack, clamp plate perforating hole 13 is being vertically equipartited on vertical clamp plate 12, clamp bolt 2 passes clamp plate perforating hole 13 and clamp bolt nut 21 screw thread connects soon.

The use flow of the adjustable detachable reference beam comprises the following steps: firstly, determining the position of the base 10 according to the use requirement, and then driving the expansion bolt 101 into the ground to fix the position of the base 10; then, loosening the compression bolt 7, adjusting the T-shaped slide block 8 and the strip-shaped connecting plate 6 to proper positions along the T-shaped channel 9, and tightening the compression bolt 7; secondly, loosening the fixing bolt 4, adjusting the solid inserted bar 3 to a proper height along the inner wall of the hollow bar 5, and then screwing the fixing bolt 4; then loosening the clamping bolt and nut 21, adjusting the instrument base 1 to a proper height and angle, and then screwing the clamping bolt and nut 21 to fix the instrument base, wherein the magnetic base of the displacement meter (such as a dial indicator) can be adsorbed on the platform plate 11; finally, after the device is used, the clamp bolt and nut 21 is loosened and the instrument base 1 is withdrawn from the solid plunger 3. The fixing bolt 4 is loosened and the solid plunger 3 is withdrawn from the hollow rod 5. And screwing out the compression bolt 7, separating the strip-shaped connecting plate 6 and the hollow rod 5 from the base 10, and simultaneously taking out the T-shaped sliding block 8 from two ends of the T-shaped channel 9. Then the expansion bolts 101 are screwed out, and the base 10 is recovered, so that the whole device can be disassembled.

Specifically, after the position of the base 10 is determined according to the field and the arrangement condition of the instrument, the four expansion bolts 101 are driven into the ground, and the stability of the whole reference beam is ensured under the condition that the ground is hardly damaged, so that the measurement accuracy of the instrument is ensured; meanwhile, the design is convenient to disassemble, and when the reference beam needs to be moved, the expansion bolt 101 is screwed out, so that the mobility and the portability of the device are realized.

The T-shaped groove 9 extends in the horizontal direction, so that the T-shaped sliding block 8 moves in the horizontal direction and simultaneously limits the displacement in the vertical direction; the T-shaped sliding block 8 can be put in or taken out from the openings at the two sides of the T-shaped channel 9, so that the device can be disassembled, checked and replaced. After the completion of the positioning work of the base 10, the compression bolt 7 on the strip-shaped connecting plate 6 is loosened firstly, because the T-shaped sliding block 8 and the T-shaped groove 9 are not loosened, and the friction reducing effect of lubricating oil on the inner wall of the T-shaped groove 9 is added, so the T-shaped sliding block 8 can easily slide in the T-shaped groove 9 at the moment, the movement of the compression bolt 7 is driven by the sliding of the two T-shaped sliding blocks 8, the movement of the strip-shaped connecting plate 6 is driven by the movement of the compression bolt 7, and the horizontal position of the strip-shaped connecting plate 6 can be adjusted freely along the T-shaped sliding groove 9 by the transmission mode. After the position of bar connecting plate 6 was confirmed, four clamp bolt 7 that are located bar 6 were screwed up again, and along with clamp bolt 7 precession, T type slider 8 has ascending trend, and then compresses tightly gradually with T type channel 9, and connecting plate 6 also can compress tightly gradually with the upper surface of base 10 simultaneously. When the pressing force is large enough, the sliding block 8 can be tightly pressed against the inner wall of the channel 9, and the strip-shaped connecting plate 6 can be tightly pressed on the surface of the base 10, so that the positions of the sliding block 8 and the strip-shaped connecting plate 6 are fixed. Meanwhile, the compression threaded hole 71 is deeper and larger than the length of the screw of the compression bolt 7, so that the bolt 7 is ensured to have enough screwing space, and thus, sufficient compression force is ensured during compression. In summary, the positions of the T-shaped sliding block 8 and the strip-shaped connecting plate 6 can be moved and fixed in the direction of the T-shaped sliding groove 9 by loosening and tightening the compression bolt 7; meanwhile, after the device is used, the compression bolts 7 on the strip-shaped connecting plates 6 can be detached, and then the connecting plates 6 are detached from the base, so that the device is detached, the operation is simple, and the flexibility and the convenience of the device are guaranteed.

In the use device process, when the use height of measuring instrument need be adjusted, the vertical height of benchmark roof beam also need make the adjustment in step, loosens all fixing bolt 4 at hollow rod 5 top this moment, because the separation all around of fixing bolt 4 screw rod tip and solid inserted bar 3, also disappears to its surperficial restraint pressure, consequently solid inserted bar 3 can reciprocate in hollow rod 5 to adjust the height of solid inserted bar 3. When the solid inserted bar 3 is adjusted to a certain height and can already meet the use requirements of a measuring instrument, the four fixing bolts 4 are screwed, the end parts of the screws of the fixing bolts 4 gradually abut against the periphery of the solid inserted bar 3, the constraint pressure on the surface of the solid inserted bar is increased, and when the pressure is increased to a certain degree, the solid inserted bar 3 can be fixed at a certain height; when the device is required to be disassembled after use, the fixing bolt 4 is loosened, and the solid inserted bar 3 is drawn out from the inside of the hollow bar 5.

The magnetic base of the displacement meter (such as a dial indicator) can be attached to the platform plate 11, and the clamping plate 12 and the clamping bolt 2 are used for fixing and moving the whole instrument base 1. When the device is used, after the positions and heights of the base 10, the T-shaped sliding block 8, the strip-shaped connecting plate 6, the hollow rod 5 and the solid inserting rod 3 of the whole device are determined, the height and the angle of the instrument base 1 need to be adjusted to meet the installation requirements of a measuring instrument. At this time, the clamping bolt and the clamping nut 21 on the clamping plate 12 are loosened, the clamping force of the clamping bolt 2 on the clamping plate 12 is gradually reduced along with the unscrewing of the clamping bolt and the clamping nut 21, and the pressure on the contact surface of the instrument base 1 and the solid inserted rod 3 is gradually reduced until the pressure disappears, so that the instrument base 1 can move up and down and rotate along the solid inserted rod 3; when the instrument base 1 is adjusted to a proper height and angle, the instrument base 1 can be fixed by screwing the clamping bolt and the clamping nut 21; when the measurement is finished and the device needs to be disassembled, the clamping bolt and the nut 21 of the clamping bolt 2 are loosened, and the instrument base 1 is drawn out along the solid inserted rod 3.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. An adjustable detachable reference beam is characterized by comprising a base (10), a T-shaped channel (9), a T-shaped sliding block (8), a compression bolt (7), a strip-shaped connecting plate (6), a vertical hollow rod (5), a fixing bolt (4), a solid inserted rod (3) and an instrument base (1); wherein, instrument base (1) includes landing slab (11), clamping plate (12), clamping bolt (2), clamping bolt nut (21) etc.. The base (10) is provided with a T-shaped channel (9), and the T-shaped sliding block (8) is connected with the T-shaped channel (9) in a sliding manner; the strip-shaped connecting plate (6) is connected to the top of the T-shaped sliding block (8) through a compression bolt (7); the strip-shaped connecting plate (6) is fixedly connected with the vertical hollow rod (5); the solid inserted bar (3) is inserted into the vertical hollow bar (5). The top of the vertical hollow rod (5) is provided with a fixed threaded hole (41) which is uniformly distributed and centrosymmetric, and a fixed bolt (4) is screwed into the fixed threaded hole (41) and abuts against the solid inserted rod (3) to fix the same. The platform plate (11) is provided with a crack and is sleeved on the solid inserted rod (3) in a penetrating manner, the clamping plate (12) is fixedly connected with the platform plate (11) along the crack, the vertical clamping plate (12) is provided with a clamping plate through hole (13), and the clamping bolt (2) penetrates through the clamping plate through hole (13) and is in threaded connection with the clamping bolt nut (21).

2. The adjustable removable reference beam according to claim 1, wherein the reference beam further comprises an expansion bolt (101), and the base (10) is fixed to the ground by the expansion bolt (101).

3. The adjustable removable reference beam according to claim 1, wherein the T-shaped channel (9) is internally coated with a lubricating oil.

4. The adjustable detachable reference beam as claimed in claim 1, wherein the pressing threaded hole (71) and the strip-shaped plate through hole (61) have the same diameter.

5. The adjustable removable reference beam according to claim 1, wherein the strip-shaped connection plate (6) and the vertical hollow bar (5) are mutually perpendicular.