CN211292072U - Core sample fastening and lifting device - Google Patents

Abstract

The utility model provides a core sample fastening and lifting device, which comprises a lifting cylinder body, wherein vertical grooves are symmetrically processed on the lifting cylinder body, and a first fixing nut and a second fixing nut are symmetrically arranged on the lifting cylinder body and at the height positions of the vertical grooves; the long screw rod is installed between the first fixing nut and the second fixing nut through thread matching, the long screw rod penetrates through the lifting cylinder body, and a rotating handle is fixed at the end position of the long screw rod. The core drilling machine can adapt to core drilling and sampling of pavement structure layers with various thicknesses, especially can ensure that a large-thickness core sample is completely taken out at one time, and improves the efficiency of on-site core taking.

Description

Core sample fastening and lifting device

Technical Field

The utility model relates to a coring device field, concretely relates to core appearance fastening hoisting device.

Background

The thickness and the compactness are very important indexes in pavement detection, and the thickness, the compaction condition and the interlayer bonding effect of each layer are closely related to the overall strength, the elevation and the flatness of a road. The existing detection method mainly adopts a core drilling method, a core taking machine is used for vertically drilling downwards from the top of a road surface to the top surface of a lower bearing layer, and then a core sample is taken out by hands or a simple clamp for test measurement. In order to accurately judge the thickness, compaction condition and interlayer bonding effect of the whole pavement structure layer, a large-thickness core drilling machine is adopted to drill through the pavement structure layer in partial provinces and projects, and the maximum thickness of a core sample reaches about 74 cm. In actual operation, after the core sample reaches a certain thickness and weight, the core sample cannot be completely taken out by hands or by adopting a common clamp because the operating space around the core sample is limited by only a few millimeters, and then the subsequent test measurement cannot be carried out on the core sample to evaluate the construction quality.

SUMMERY OF THE UTILITY MODEL

The utility model provides a convenient and low cost's core appearance fastening hoisting device of preparation can adapt to the core sample of various thickness road surface structural layer bores, especially can ensure to lead to the core sample of getting of big thickness and once completely take out, has improved the efficiency of on-the-spot coring.

In order to realize the technical characteristics, the purpose of the utility model is realized as follows: the core sample fastening and lifting device comprises a lifting cylinder body, wherein vertical grooves are symmetrically processed on the lifting cylinder body, and a first fixing nut and a second fixing nut are symmetrically arranged on the lifting cylinder body and at the height positions of the vertical grooves; the long screw rod is installed between the first fixing nut and the second fixing nut through thread matching, the long screw rod penetrates through the lifting cylinder body, and a rotating handle is fixed at the end position of the long screw rod.

And a lifting handle is fixedly welded at the top of the lifting cylinder body.

And a locking nut is sleeved at one end of the long screw rod, which is positioned at the rotating handle.

The inner diameter of the lifting cylinder body is larger than the inner diameter of the core bit, and the outer diameter of the lifting cylinder body is smaller than the outer diameter of the core bit.

The width of the vertical slot is at least 1/3 of the diameter of the lift cylinder.

The height of the vertical slots is at least 1/5 the height of the lift cylinder.

The utility model discloses there is following beneficial effect:

1. this device can be fast take out the core appearance that core machine got bores from the punchhole, is suitable for various thickness road surface structural layer, and the original appearance and the integrality of at utmost guarantee core appearance improve the success rate of getting the core, reduce to get that the core operation is artifical, the machines drop into. And the device has the characteristics of simple structure, low cost, high efficiency, convenient processing and use, safety and environmental protection.

2. Through the promotion barrel of above-mentioned structure, it has vertical groove in bottom processing, can take place certain deformation through vertical groove under long screw's effect, and then presss from both sides tightly the core appearance.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a front view of the present invention.

Fig. 2 is a main sectional view of the present invention.

Fig. 3 is a top view of the present invention.

Fig. 4 is a longitudinal sectional view along the height of the long screw according to the present invention.

Fig. 5 (a), (b) and (c) are state diagrams of the present invention in the using process.

In the figure: handle 1, promotion barrel 2, vertical groove 3, first fixation nut 4, long screw 5, second fixation nut 6, lock nut 7, twist grip 8, core appearance 9, drilling 10, sample basis 11.

Detailed Description

The following describes embodiments of the present invention with reference to the accompanying drawings.

Example 1:

referring to fig. 1-4, the core sample fastening and lifting device comprises a lifting cylinder body 2, wherein vertical grooves 3 are symmetrically processed on the lifting cylinder body 2, and first fixing nuts 4 and second fixing nuts 6 are symmetrically arranged on the lifting cylinder body 2 at the height positions of the vertical grooves 3; install long screw 5 through screw-thread fit between first fixation nut 4 and the second fixation nut 6, long screw 5 runs through and promotes barrel 2, is fixed with twist grip 8 in the end position of long screw 5. Can be used for taking out core appearance smoothly in the punchhole through foretell device, be suitable for various thickness road surface structural layer, the original appearance and the integrality of at utmost guarantee core appearance improve the success rate of getting the core, reduce to get core operation manual work, machines and tools and drop into. In the concrete use, through inserting the drilling in the bottom that will promote barrel 2, screwing through long screw 5, and then will promote the bottom open position of barrel 2 and press from both sides tightly, and then press from both sides the top of tight core appearance, the whole hoisting device of manual mention just can realize its process of taking out again.

Further, a handle 1 is welded and fixed to the top of the lifting cylinder 2. Handle 1 through above-mentioned structure can be convenient carry out effectual promotion with whole device and core appearance.

Furthermore, a locking nut 7 is sleeved on one end of the long screw rod 5, which is located at the position of the rotating handle 8. The locking nut 7 can ensure that the long screw 5 can rotate and lock in the process of rotation and locking

Further, the inner diameter of the lifting cylinder 2 is larger than the inner diameter of the core bit, and the outer diameter of the lifting cylinder is smaller than the outer diameter of the core bit. Through the size matching, the lifting cylinder body 2 can be smoothly inserted into the outside of the core sample, and then the core sample is locked.

Further, the width of the vertical groove 3 is at least 1/3 of the diameter of the lifting cylinder 2. Through the size matching, the opening position at the bottom of the lifting cylinder body 2 is guaranteed to be folded under the action of the long screw rod, and then the core sample is clamped tightly.

Further, the height of the vertical groove 3 is at least 1/5 of the height of the lifting cylinder 2. Through the size matching, the clamping device can be clamped under the action of the long screw, and further tiny deformation is realized to clamp a core sample.

The utility model discloses a working process and principle do:

as shown in fig. 5, after the drilling operation is finished, the core drilling machine is removed from the working face, the device is placed into the hole along the peripheral hole wall of the core sample, when the lower opening of the device enters the thickness of the bottommost structural layer 1/5, the screw 5 is rotated clockwise, the fastening nut 7 extrudes the barrel to shrink so as to anchor the core sample 9, the barrel handle 1 is pulled upwards, the device is taken out together with the core sample, the screw 7 is rotated anticlockwise, the core sample 9 is separated from the lifting barrel 2, and the device is removed to obtain the complete core sample. The device has the characteristics of simple structure, quick adjustment and positioning and convenient use.

Claims (6)

1. Core appearance fastening hoisting device, its characterized in that: the lifting cylinder comprises a lifting cylinder body (2), wherein vertical grooves (3) are symmetrically processed on the lifting cylinder body (2), and first fixing nuts (4) and second fixing nuts (6) are symmetrically arranged on the lifting cylinder body (2) at the height positions of the vertical grooves (3); install long screw rod (5) through screw-thread fit between first fixation nut (4) and second fixation nut (6), long screw rod (5) run through and promote barrel (2), are fixed with twist grip (8) in the end position of long screw rod (5).

2. The core sample fastening and lifting device of claim 1, wherein: the top of the lifting cylinder body (2) is fixedly welded with a handle (1).

3. The core sample fastening and lifting device of claim 1, wherein: and a locking nut (7) is sleeved at one end of the long screw rod (5) where the rotating handle (8) is positioned.

4. The core sample fastening and lifting device of claim 1, wherein: the inner diameter of the lifting cylinder body (2) is larger than the inner diameter of the core bit, and the outer diameter of the lifting cylinder body is smaller than the outer diameter of the core bit.

5. The core sample fastening and lifting device of claim 1, wherein: the width of the vertical groove (3) is at least 1/3 of the diameter of the lifting cylinder body (2).

6. The core sample fastening and lifting device of claim 1, wherein: the height of the vertical groove (3) is at least 1/5 of the height of the lifting cylinder body (2).

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