CN215629848U

CN215629848U - Highway and pavement engineering detect core appearance and draw instrument

Info

Publication number: CN215629848U
Application number: CN202121397921.8U
Authority: CN
Inventors: 史富伟; 姜兆福; 杨立志; 白雨河; 黎富炉; 李康
Original assignee: Civil Aviation Airport Construction Engineering Co Ltd
Current assignee: Civil Aviation Airport Construction Engineering Co Ltd
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2022-01-25
Anticipated expiration: 2031-06-23

Abstract

The utility model discloses a core sample extraction tool for highway and pavement engineering detection, which relates to the field of urban road, highway and airport pavement engineering and comprises 2 vertical rods, wherein the bottom end of each vertical rod is connected with an arc-shaped clamping plate, and a first adjusting mechanism and a second adjusting mechanism for adjusting the clamping force of the arc-shaped clamping plates are respectively arranged between the 2 vertical rods. This novel sound construction, convenient to use, the clamping-force of adjustable arc splint, it is big with the area of contact on core appearance surface, can avoid in the sample to the destruction of core appearance to and the problem that the core appearance drops.

Description

Highway and pavement engineering detect core appearance and draw instrument

Technical Field

The utility model relates to an urban road, highway and airport field way engineering field, concretely relates to highway and pavement engineering detect core appearance and draw instrument.

Background

At present, core samples are usually taken out from core taking holes by matching different tools for core taking detection of cement stabilized macadam base layers, and in order to ensure the integrity and the strength of the core samples, the core samples need to be taken out from the core taking holes at one time. At present, the common practice in construction sites is to manually use different tool combinations to remove the core sample from the coring hole. The method mainly has the following disadvantages:

1. damaging the core sample in the extraction process to destroy the integrity of the core sample;

2. during the coring process, the core sample is easy to slide off, and the strength and the integrity of the core sample are influenced.

The clamp has the advantages that workers make the wood clamp for clamping the core sample through technical improvement, the wood clamp is convenient to use, the defect that the local stress of the core sample is large due to the fact that the clamping part of the clamp is small in contact area with the core sample, the core sample is easy to fall off due to the fact that manual force is used in the clamping process still exists.

SUMMERY OF THE UTILITY MODEL

The utility model provides a highway and pavement engineering detect core appearance and draw instrument, the problem that exists among the purpose solution prior art.

In order to achieve the purpose, the technical scheme adopted by the novel device is as follows:

the utility model provides a highway and pavement engineering detect core appearance and draw instrument, includes 2 montants, and the bottom of every montant all is connected with arc splint, is equipped with first adjustment mechanism and the second adjustment mechanism that is used for adjusting arc splint clamping-force between 2 montants respectively.

Preferably, first adjustment mechanism and second adjustment mechanism have the same structure, all include sleeve, first screw rod and the second screw rod that the level set up, telescopic internal surface both ends be equipped with the internal thread respectively, the looks remote site of first screw rod and second screw rod spiro union respectively at telescopic both ends, the one end that deviates from mutually is articulated with the surface of the montant that corresponds respectively, and the articulated shaft sets up along the level to the axis of articulated shaft is perpendicular with telescopic axis, the sleeve rotatory time, drive first screw rod and second screw rod simultaneously to being close to or keeping away from telescopic direction removal.

Preferably, the first adjusting mechanism is arranged between the middle lower parts of the 2 vertical rods, and the second adjusting mechanism is arranged between the upper parts of the 2 vertical rods.

Preferably, the inner surface of the arc-shaped clamping plate is provided with an elastic rib structure.

Preferably, the section of the elastic convex rib structure is a wedge-shaped structure, the end face of the wedge-shaped structure, which is far away from one side of the arc-shaped clamping plate, forms a unidirectional guide inclined plane, and the unidirectional guide inclined plane inclines towards the oblique upper part of the inner side of the 2 arc-shaped clamping plates.

Preferably, the elastic lug structure is made of rubber material.

Preferably, the vertical rods and the arc-shaped clamping plates are made of metal materials.

This novel highway and pavement engineering detect core appearance and draw instrument's beneficial effect does:

1. this novel major structure is made by metal material, has guaranteed the intensity of device, and with the part of core appearance contact, is made by elastic rubber material, can avoid in the centre gripping to the destruction on core appearance surface, and be equipped with the one-way direction inclined plane, does benefit to and inserts arc splint, and during the sample, elasticity bead structure is through deformation increase frictional force, improves the stability of core appearance centre gripping.

2. This is novel can insert the thief hole perpendicularly with arc splint to increased with the area of contact on core appearance surface, avoided the big core appearance destruction that leads to of local atress.

3. The novel core sample clamping device is provided with the first adjusting mechanism and the second adjusting mechanism, and through the adjusting action of the first adjusting mechanism and the second adjusting mechanism, the arc-shaped clamping plate can firmly clamp the core sample, and the clamping force can be balanced and stable, so that the core sample can be prevented from falling off, and the integrity of the core sample is protected; in addition, the novel sampling device can be also suitable for sampling core samples with different sizes.

Description of the drawings:

FIG. 1 is a schematic view of a three-dimensional structure of the present invention during operation;

FIG. 2 is a schematic perspective view of the present invention;

FIG. 3 is a front view of the inner side end of the novel arc splint;

FIG. 4 is a side cross-sectional view of the novel arcuate splint;

1. core sample; 2. a vertical rod; 3. a first adjustment mechanism; 4. a second adjustment mechanism; 5. an arc-shaped splint; 31. a sleeve; 32. a first screw; 33. a second screw; 51. the elastic rib structure.

The specific implementation mode is as follows:

the present invention is described in detail below with reference to the drawings, which are intended to illustrate preferred embodiments of the present invention and not to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are only used for describing the present invention and simplifying the description, but do not indicate or imply that the device or the element to be referred to must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention.

A core sample extracting tool for highway and pavement engineering detection is disclosed, as shown in figures 1 and 2, and comprises 2 vertical rods 2, the bottom end of each vertical rod 2 is connected with an arc-shaped clamping plate 5, and a first adjusting mechanism 3 and a second adjusting mechanism 4 for adjusting the clamping force of the arc-shaped clamping plates 5 are respectively arranged between the 2 vertical rods 2;

as shown in fig. 2, the first adjusting mechanism 3 and the second adjusting mechanism 4 have the same structure, and each of the first adjusting mechanism and the second adjusting mechanism includes a horizontally disposed sleeve 31, a first screw rod 32, and a second screw rod 33, wherein two ends of an inner surface of the sleeve 31 are respectively provided with an internal thread, opposite ends of the first screw rod 32 and the second screw rod 33 are respectively screwed to two ends of the sleeve 31, opposite ends are respectively hinged to an outer surface of the corresponding vertical rod 2, a hinge shaft is horizontally disposed, and an axis of the hinge shaft is perpendicular to an axis of the sleeve, and when the sleeve rotates, the first screw rod 32 and the second screw rod 33 are driven to simultaneously move toward or away from the sleeve;

as shown in fig. 1, the first adjusting mechanism 3 is arranged between the middle lower parts of the 2 vertical rods 2, and the second adjusting mechanism 4 is arranged between the upper parts of the 2 vertical rods 2;

as shown in fig. 3 and 4, the inner surface of the arc-shaped splint 5 is provided with an elastic rib structure 51;

as shown in fig. 4, the section of the elastic rib structure 51 is a wedge-shaped structure, the end surface of the wedge-shaped structure on the side far away from the arc-shaped splint forms a unidirectional guide inclined plane, and the unidirectional guide inclined plane inclines towards the obliquely upper part of the inner side of the 2 arc-shaped splints 5;

the elastic rib structure 51 is made of rubber material;

the vertical rods and the arc-shaped clamping plates are made of metal materials.

This neotype theory of use:

1. in the prior art, in order to avoid the damage to the core sample 1, the manufactured wooden clamp can achieve the core sample protection effect, but has low strength and is easy to break, but if a metal device is used for sampling, the damage to the surface of the core sample is difficult to avoid, the problem is effectively avoided by arranging the elastic rib structure on the inner surface of the arc-shaped clamping plate 5, the whole device main body is made of metal, the contact part with the core sample is made of rubber, and the core sample can be fully prevented from being damaged in the clamping process; meanwhile, due to the one-way guide inclined plane, the arc-shaped clamping plate is easy to insert when being inserted into the sampling hole to extract the core sample, and when being pulled out, due to the gravity of the core sample, the elastic convex edge structure 51 can generate large friction force due to deformation, so that the core sample can be prevented from falling off.

2. The clamping part can not be inserted into the sampling hole along the longitudinal direction in the sampling process of the clamping device, and only the top of the side wall of the core sample can be clamped, so that the local stress of the core sample is large, and the core sample is easy to damage; during this novel use, then with 2 arc splint 5 direct along vertically inserting the clearance of core appearance outer wall and thief hole, can greatly increase the area of contact of clamping part and core appearance surface, avoid the too big damaged phenomenon that leads to of local atress.

3. The centre gripping that is close two points to the core appearance is usually to the tong class device, therefore also can't speak about the atress equilibrium, and this novel first adjustment mechanism 3 and the second adjustment mechanism 4 that are equipped with 5 clamping-force of adjustable arc splint insert 2 arcs along the core appearance lateral wall earlier during concrete use, then make 2 firm centre gripping of arc splint 5 at the surface of core appearance through rotatory telescopic mode, even 2 arc inboard surfaces compress tightly with the core appearance surface, and keep the atress equilibrium, then hold the sleeve and lift up the core appearance can.

Claims

1. The utility model provides a core appearance extraction tool is detected in highway and pavement engineering which characterized in that: including 2 montants, the bottom of every montant all is connected with arc splint, is equipped with first adjustment mechanism and the second adjustment mechanism that is used for adjusting arc splint clamping-force between 2 montants respectively.

2. The road and pavement engineering detection core sample extraction tool of claim 1, wherein: first adjustment mechanism and second adjustment mechanism have the same structure, all include sleeve, first screw rod and the second screw rod that the level set up, telescopic internal surface both ends be equipped with the internal thread respectively, the looks remote site of first screw rod and second screw rod spiro union respectively at telescopic both ends, the one end that deviates from mutually is articulated with the surface of the montant that corresponds respectively, and the articulated shaft sets up along the level to the axis of articulated shaft is perpendicular with telescopic axis, the sleeve rotatory time, drive first screw rod and second screw rod simultaneously to being close to or keeping away from telescopic direction removal.

3. The road and pavement engineering detection core sample extraction tool of claim 2, wherein: the first adjusting mechanism is arranged between the middle lower parts of the 2 vertical rods, and the second adjusting mechanism is arranged between the upper parts of the 2 vertical rods.

4. The road and pavement engineering detection core sample extraction tool of claim 3, wherein: the inner surface of the arc-shaped clamping plate is provided with an elastic convex rib structure.

5. The road and pavement engineering detection core sample extraction tool of claim 4, wherein: the section of the elastic convex rib structure is of a wedge-shaped structure, the end face of one side, away from the arc-shaped clamping plate, of the wedge-shaped structure forms a one-way guiding inclined plane, and the one-way guiding inclined plane inclines towards the oblique upper side of the inner side of the 2 arc-shaped clamping plates.

6. The road and pavement engineering detection core sample extraction tool of claim 5, wherein: the elastic rib structure is made of rubber materials.

7. The road and pavement engineering detection core sample extraction tool of claim 6, wherein: the vertical rods and the arc-shaped clamping plates are made of metal materials.