CN220927788U - Road surface core appearance extraction element - Google Patents

Abstract

The utility model provides a road surface core sample extracting device, which belongs to the technical field of road monitoring devices, and comprises a fixing piece, wherein two clamping pieces are symmetrically hinged to two sides of the fixing piece, the two clamping pieces are commonly used for being sleeved on the peripheral surface of a core sample, the middle part of the fixing piece is fixedly connected with a vertically arranged operating rod, a limiting structure is movably connected to the position of one end of the operating rod, far away from the core sample, of the clamping piece, the limiting structure moves along the operating rod towards the position, close to the fixing piece, of one end of the operating rod, the top ends of the two clamping pieces can be pushed towards the direction, far away from the operating rod, the pushed clamping pieces rotate around the hinged position, and the bottom ends of the clamping pieces clamp the core sample and can keep the clamping state of the clamping pieces until the core sample is taken out; the technical problem that an existing sampling tool is not easy to clamp a longer core sample is solved.

Description

Road surface core appearance extraction element

Technical Field

The utility model belongs to the technical field of highway monitoring devices, and particularly relates to a pavement core sample extracting device.

Background

In the construction process of the highway pavement, a drilling coring method is generally adopted to detect the technical index of the pavement structural layer. The pavement water-stable base layer or other pavement structural layers are often required to be drilled and applied to a drilling machine, but a concrete drilling machine is generally adopted when holes with larger diameters are drilled, so that larger holes can be drilled at one time, the drilled holes are uniform and attractive, and the pavement water-stable base layer or other pavement structural layers are often used in a large range during construction of asphalt pavement or concrete pavement.

However, when the concrete drilling machine drills deep holes of more than 0.5 m, the length dimension of the core sample is large, and at the moment, the operation is inconvenient when a traditional clamp type sampling tool is used for sampling, and the traditional clamp type sampling tool such as the patent of the utility model with the authorized publication number of CN205205801U discloses a core sample clamping device which mainly comprises a scissor type body and a clamping container.

The operation is convenient for clamping the core sample within 0.5 meter, but when the sampling tool is used for sampling the core sample with longer length, the clamping force can not be kept stable continuously when the manual operation is used for clamping the core sample, and the core sample is loosened in the clamping process if the clamping force is reduced, so that the core sample is easy to slide down and break, and the sampling is failed.

Accordingly, there is a need to provide an improved solution to the above-mentioned deficiencies of the prior art.

Disclosure of utility model

The utility model aims to provide a pavement core sample extracting device, which aims to solve the technical problem that an existing sampling tool is difficult to clamp a longer core sample.

In order to achieve the above object, the present utility model provides a pavement core sample extraction device, comprising:

The utility model provides a road surface core appearance extraction element, includes the mounting, and mounting bilateral symmetry articulates has two clamp to get the piece, and two clamp are got the piece and are used for the cover to establish on the outer peripheral face of core appearance jointly, and mounting middle part fixedly connected with vertically sets up the action bars, the action bars is gone up and is kept away from the one end position department swing joint who presss from both sides the core appearance of getting the piece and have limit structure, limit structure along the action bars to the one end motion that is close to the mounting can be to keeping away from the action bars direction promote two the top that presss from both sides the piece, and the bottom that is promoted presss from both sides and gets the piece and rotate around the articulated position, presss from both sides the tight state that the core appearance of getting the piece and can keep presss from both sides to get the piece until taking out the core appearance.

As a further optimized technical scheme, the clamping piece comprises a connecting rod, the connecting rod is hinged with the fixing piece, and an arc plate is fixedly connected to the bottom of the outer side of the connecting rod and used for being attached to the outer peripheral surface of the core sample.

As further optimized technical scheme, limit structure includes the toper movable block, and toper movable block cover is established in the action bars outside and the tip is installed towards arc one end, the one end that the arc was kept away from to the connecting rod is provided with the inclined plane that faces the adaptation with toper movable block outside, toper movable block and inclined plane sliding fit.

As a further optimized technical scheme, the conical movable block is in sliding fit with the operating rod, the limiting structure further comprises a positioning piece, and the positioning piece is arranged on the operating rod and close to the large end position of the conical movable block and used for compressing the conical movable block.

As a further optimized technical scheme, the positioning piece is a nut, the position of the operating rod at the position of the installation limiting structure is provided with an external thread section, and the nut is connected with the external thread section and the threads.

As a further optimized technical scheme, the outside of the conical movable block is provided with a guide groove, and the inclined surface is provided with a guide rail matched with the guide groove.

As a further optimized technical scheme, one end of the connecting rod, which is connected with the arc plate, is provided with a positioning structure for abutting against the top end of the core sample when the arc plate clamps the core sample.

As a further optimized technical scheme, the clamping piece is further provided with an automatic loosening structure, so that the top ends of the two clamping pieces are tensioned towards one side close to the operating rod when the limiting structure moves towards the direction away from the fixing piece.

As a further optimized technical scheme, the automatic loosening structure is a spring, one end of the spring is fixedly connected with the clamping piece, and the other end of the spring is fixedly connected with the operating rod or the other clamping piece.

As a further optimized technical scheme, the operating rod is further provided with a steel pipe section, the steel pipe section is detachably connected with the external thread section, and at least one through hole perpendicular to the axis of the operating rod is formed in the steel pipe section.

The beneficial effects are that: two clamping pieces are symmetrically hinged to two sides of the fixing piece, and a limiting structure is arranged on the operating rod, so that when a core sample is clamped, the clamping pieces can continuously clamp the core sample until the core sample is taken out by using the limiting structure, uncertain factors of manual clamping operation are eliminated in the coring process, the stability of clamping force in the coring process is ensured, and the core sample with a longer size is conveniently taken out.

Drawings

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

FIG. 1 is a schematic view of an overall pavement core extractor according to one embodiment of the present utility model;

FIG. 2 is a schematic partial cross-sectional view of a tapered movable block according to one embodiment of the utility model;

FIG. 3 is a schematic illustration of the connection of a steel pipe segment to an externally threaded segment according to one embodiment of the present utility model;

FIG. 4 is a schematic view of a connecting rod according to an embodiment of the present utility model;

FIG. 5 is a schematic view of an arcuate plate according to an embodiment of the present utility model;

FIG. 6 is a top view of FIG. 5;

In the figure: 1. a fixing member; 2. a clamping member; 201. a connecting rod; 202. an arc-shaped plate; 203. an inclined surface; 204. a guide rail; 205. a positioning structure; 3. an operation lever; 301. an external thread section; 302. a steel pipe section; 303. a through hole; 4. a conical movable block; 401. a guide groove; 5. a positioning piece; 6. automatically releasing the structure; 7. connecting sleeves; 8. a screw; 9. a screw cap; 10. a rivet; 11. and (5) perforating.

Detailed Description

The following description of the technical solutions in the embodiments of the present utility model will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the utility model, fall within the scope of protection of the utility model.

In the description of the present utility model, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present utility model and do not require that the present utility model must be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. The terms "coupled" and "connected" as used herein are to be construed broadly and may be, for example, fixedly coupled or detachably coupled; either directly or indirectly through intermediate components, the specific meaning of the terms being understood by those of ordinary skill in the art as the case may be.

The utility model will be described in detail below with reference to the drawings in connection with embodiments. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

Example 1 of a pavement core sample extraction device:

The utility model provides a pavement core sample extracting device, which is characterized in that two clamping pieces are symmetrically hinged on two sides of a fixing piece, a limiting structure is arranged on an operating rod, when a core sample is clamped, the limiting structure is used for moving along the operating rod towards the direction close to the fixing piece, so that the top ends of the two clamping pieces are pushed towards the side far away from the operating rod, at the moment, the clamping pieces rotate around the hinge position to clamp the core sample, the limiting structure can keep the clamping state of the clamping pieces until the core sample is taken out, the stability of clamping force in the coring process is ensured, and further the core sample with longer size is conveniently taken out.

Specifically as shown in fig. 1, the pavement core sample extracting device comprises a fixing piece 1, in this embodiment, the fixing piece 1 is of a plate-shaped structure, two clamping pieces 2 are symmetrical at two sides of the fixing piece 1 and hinged through rivets 10, the bottom ends of the two clamping pieces 2 are jointly used for being sleeved on the outer peripheral surface of a core sample, and an operating rod 3 which is vertically arranged is fixedly connected to the middle part of the fixing piece 1 and used for conveniently lifting the clamped core sample upwards during sampling. The limiting structure is movably connected to the operating rod 3 at the position of one end of the clamping piece 2 far away from the core sample, when the limiting structure moves along the operating rod 3 towards one end close to the fixing piece 1, the top ends of the two clamping pieces 2 can be pushed towards the direction far away from the operating rod 3, the pushed clamping pieces 2 rotate around the hinge position, and therefore the bottom ends of the two clamping pieces 2 are extruded inwards jointly to clamp the core sample. By fixing the stopper to the lever 3, the gripping state of the gripping member 2 can be maintained until the core sample is taken out.

As shown in fig. 1, 4, 5 and 6, the gripping member 2 specifically includes a connecting rod 201, a through hole 11 through which a rivet 10 passes is provided on the connecting rod 201, the position of the through hole 11 of the connecting rod 201 is hinged with the fixing member 1 by using the rivet 10, an arc plate 202 is fixedly connected to the bottom of the outer side of the connecting rod 201, and the arc plate 202 is used for attaching to the outer circumferential surface of the core sample when the core sample is gripped by the gripping member 2.

As shown in fig. 1 and 2, the limiting structure comprises a conical movable block 4, the conical movable block 4 is sleeved outside the operating rod 3, the small end of the conical movable block is installed towards one end of the arc-shaped plate 202, one end of the connecting rod 201 away from the arc-shaped plate 202 is provided with an inclined surface 203 which is matched with the outer side surface of the conical movable block 4, the conical movable block 4 is in sliding fit with the inclined surface 203, and therefore the top end of the connecting rod 201 can be pushed to move outwards when the conical movable block 4 moves downwards, the connecting rod 201 rotates around the hinged position, and the bottom end of the connecting rod 201 contracts inwards.

In this embodiment, the conical movable block 4 is slidably matched with the operating rod 3, and the limiting structure further includes a positioning member 5, where the positioning member 5 is disposed on the operating rod 3 near a large end position of the conical movable block 4, and is used for compressing the conical movable block 4 to define a sliding position of the conical movable block 4. In this embodiment, the positioning member 5 is preferably a nut, and the operating rod 3 has an external thread section 301 at a position where the limiting structure is mounted, and the nut is screwed with the external thread section 301. Thus, after the conical movable block 4 slides downwards to the position where the gripping member 2 has gripped the core sample, the conical movable block 4 can be positioned at the position where the gripping member 2 grips the core sample by tightening the nut to press the top end of the conical movable block 4.

In order to ensure the sliding stability of the conical movable block 4 and the connecting rod 201, a guide groove 401 is arranged outside the conical movable block 4, and a guide rail 204 matched with the guide groove 401 is arranged on the inclined surface 203.

A positioning structure 205 is disposed at one end of the connecting rod 201 connected to the arc plate 202, in this embodiment, the positioning structure 205 is an abutting surface disposed at the bottom end of the connecting rod 201, and the abutting surfaces on the two connecting rods 201 are flush, so as to abut against the top end of the core sample when the arc plate 202 clamps the core sample.

In order to facilitate the removal of the core sample from the gripping members 2 after sampling, the gripping members 2 are further provided with an automatic releasing structure 6 for tensioning the tips of the two gripping members 2 to the side close to the operating lever 3 when the limiting structure moves in the direction away from the fixing member 1, so that the gripping members 2 rotate around the hinge position to release the core sample 2.

In this embodiment, the automatic loosening structure 6 is a spring, one end of which is fixedly connected to the clamping member 2, and the other end of which is fixedly connected to the other clamping member 2.

In order to make the device lighter and convenient to use, the operating rod 3 is further provided with a steel pipe section 302, the steel pipe section 302 is detachably connected with the external thread section 301, the specific connection mode is shown in fig. 3, the top end of the external thread section 301 stretches into the steel pipe section 302 for a certain distance, a connecting sleeve 7 is sleeved outside the steel pipe section 302, then a screw rod 8 is used for traversing the connecting sleeve 7, the steel pipe section 302 and the external thread section 301, and finally the connection between the steel pipe section 302 and the external thread section 301 is completed by screwing two ends of the screw rod 8 through nuts 9.

In order to facilitate the addition of a pulling tool to the steel pipe section 302 and facilitate the upward pulling of the device during coring, at least one through hole 303 perpendicular to the axis of the operating rod 3 is provided in the steel pipe section 302.

The specific working principle of the device is as follows: when a core sample is required to be taken out, the arc plate stretches into a hole where the core sample is located until the top end of the core sample is propped against the positioning structure, the conical movable block is pushed downwards until the arc plate clamps the core sample, then the positioning piece is screwed to press the conical movable block, then the device is pulled upwards until the core sample is completely taken out, then the positioning piece is reversely screwed to enable the conical movable block to slide upwards, at the moment, the arc plate is enabled to loosen the clamped core sample under the action of the spring, and the extraction of the core sample is completed.

In other embodiments of the pavement core sample extraction device, unlike in embodiment 1, the limiting structure itself may be directly screwed with the male thread segment, and no guide groove or guide rail is required.

In other embodiments of the pavement core sample extraction device, unlike in embodiment 1, the positioning member is a set screw provided on the tapered movable block, the set screw being indirectly threaded with the tapered movable block and being capable of abutting against the operation lever.

In other embodiments of the pavement core sample extraction device, unlike in embodiment 1, one end of the spring is fixedly connected to the gripping member, and the other end is fixedly connected to the lever.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model as defined by the appended claims.

Claims (10)

1. The utility model provides a road surface core sample extraction element, its characterized in that, including mounting (1), mounting (1) bilateral symmetry articulates has two clamp to get piece (2), and two clamp are got piece (2) and are used for the cover jointly and establish on the outer peripheral face of core sample, and mounting (1) middle part fixedly connected with vertically set up action bars (3), action bars (3) are gone up and are kept away from clamp one end position department swing joint who gets the core sample in clamp piece (2) and have limit structure, limit structure along action bars (3) to be close to one end that is close to mounting (1) can be to keeping away from action bars (3) direction promote two the top of clamp piece (2), and the clamp of being promoted gets piece (2) and rotate around the articulated position, and the bottom of clamp is got piece presss from both sides the tight state of clamp piece (2) and can keep clamp and get the core sample until taking out.

2. The pavement core sample extraction device according to claim 1, characterized in that the gripping member (2) comprises a connecting rod (201), the connecting rod (201) is hinged with the fixing member (1), and an arc-shaped plate (202) is fixedly connected to the bottom of the outer side of the connecting rod (201) and is used for fitting the outer circumferential surface of the core sample.

3. The pavement core sample extraction device according to claim 2, characterized in that the limiting structure comprises a conical movable block (4), the conical movable block (4) is sleeved outside the operating rod (3) and the small end of the conical movable block is installed towards one end of the arc-shaped plate (202), one end of the connecting rod (201) away from the arc-shaped plate (202) is provided with an inclined surface (203) which is matched with the outer side surface of the conical movable block (4), and the conical movable block (4) is in sliding fit with the inclined surface (203).

4. A pavement core sample extraction device according to claim 3, characterized in that the conical movable block (4) is in sliding fit with the operating rod (3), the limiting structure further comprises a positioning piece (5), and the positioning piece (5) is arranged on the operating rod (3) near the large end position of the conical movable block (4) and is used for pressing the conical movable block (4).

5. The pavement core sample extraction apparatus according to claim 4, wherein the positioning member (5) is a nut, the operating rod (3) has an external thread section (301) at a position where the limiting structure is mounted, and the nut is in threaded connection with the external thread section (301).

6. The pavement core sample extraction device according to claim 5, characterized in that the exterior of the conical movable block (4) is provided with a guiding groove (401), and the inclined surface (203) is provided with a guiding rail (204) adapted to the guiding groove (401).

7. A pavement core sample extraction apparatus according to any of claims 2-6, characterized in that one end of the connecting rod (201) connected to the arcuate plate (202) is provided with a positioning structure (205) for abutting against the top end of the core sample when the arcuate plate (202) is gripping the core sample.

8. A pavement core sample extractor according to any of claims 1-6, characterized in that said gripping members (2) are further provided with an automatic release structure (6) for tightening the tips of both said gripping members (2) towards the side closer to the handling rod (3) when the limit structure is moved in a direction away from the fixture (1).

9. The pavement core sample extraction device according to claim 8, characterized in that the automatic loosening structure (6) is a spring, one end of which is fixedly connected with the gripping member (2) and the other end of which is fixedly connected with the operating lever (3) or another gripping member (2).

10. The pavement core sample extraction device according to claim 5, characterized in that the operating rod (3) further comprises a steel pipe section (302), the steel pipe section (302) is detachably connected with the external thread section (301), and at least one through hole (303) perpendicular to the axis of the operating rod (3) is arranged on the steel pipe section (302).