CN217505280U - Test piece fixer for drilling core extractor - Google Patents

Abstract

The utility model belongs to the technical field of concrete test equipment, a core machine test piece fixer is got in drilling is proposed, which comprises an anchor clamps, anchor clamps are including protecting a section of thick bamboo, the side of protecting a section of thick bamboo is provided with at least two sets of ejector pin groups that distribute from top to bottom, ejector pin group is including at least three and the first ejector pin that is circular array and distributes, the both ends of first ejector pin are provided with first footstep and first spiral shell head, first footstep is located the inside of protecting a section of thick bamboo, be provided with a plurality of annulars with ejector pin group interval distribution on the inner wall of protecting a section of thick bamboo, be provided with the locking piece in the annular, the outside of protecting a section of thick bamboo is provided with a pair of linking arm, the linking arm is provided with the connector of opening down, one side of connector is provided with rather than through connection's second ejector pin, the opposite side of connector is provided with prevents changeing and embraces the claw, it is relative from top to changeing the one end of embracing the claw and the connector. The device has the advantages of reasonable design, simple structure, high utilization rate and suitability for large-scale popularization, and is favorable for ensuring the quality of samples.

Description

Test piece fixer for drilling and core-drilling machine test

Technical Field

The utility model belongs to the technical field of concrete test equipment, especially, relate to a core machine test piece fixer is got in drilling.

Background

The concrete core drilling machine mainly has two purposes, namely horizontal drilling, and is suitable for spike installation, road pile installation, bridge drilling operation procedures, integrated house pile foundation drilling and the like; secondly, coring, being suitable for road surface coring for experiment, being widely applied to various detection centers. When the drilling machine drills holes, the hand feeling resistance is small, and the cutting is stable; when the cutting is finished, the drill bit is quickly lifted until the cutting edge is separated from the work, and the drilling machine is turned off and the water source is cut off.

At present, a drill bit of a core-taking machine is of a cylindrical structure, a test piece in a cutter is usually knocked out manually after the core-taking is finished, and if a test piece test is carried out in a laboratory, the taken-out test piece needs to be subjected to secondary core-taking. Due to the lack of a test piece fixer which is matched with the core-taking machine and has higher stability, the quality of the test piece is easily influenced in the secondary core-taking process, and the reliability of the test result is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the above-mentioned technical problem who exists in the sample process of carrying out the sample to the test piece in the drill bit, provide a reasonable in design, simple structure, be favorable to guaranteeing sample quality and the higher drilling of utilization ratio and get core machine test piece fixer.

In order to achieve the above purpose, the technical solution adopted by the present invention is that, the test piece holder for drilling and core-drilling machine provided by the present invention comprises a holder, the holder comprises a protective cylinder, at least two sets of top rod sets distributed up and down are arranged on the side surface of the protective cylinder, the top rod sets comprise at least three first top rods distributed in a circular array, a first top foot and a first screw head are arranged at two ends of the first top rod, the first top foot is located inside the protective cylinder, a plurality of annular grooves distributed at intervals with the top rod sets are arranged on the inner wall of the protective cylinder, a holding member is arranged in the annular groove, a pair of horizontal connecting arms are arranged outside the protective cylinder, one end of the connecting arm away from the protective cylinder is provided with a downward opening, one side of the connecting arm is provided with a second top rod connected with the connecting arm in a penetrating manner, the second top rod comprises a second top foot and a second screw head, and an anti-rotation holding claw is arranged on the other side of the connector, and one end of the anti-rotation holding claw is opposite to the connector up and down.

As preferred, prevent changeing and embrace claw and include two square pipes, be provided with the square mouth of managing the grafting with square on the linking arm, square pipe includes the first horizontal part of pegging graft with the square mouth, the one end that linking arm center was kept away from to first horizontal part is provided with vertical portion, the bottom of vertical portion is provided with the second horizontal part that extends towards connector direction, the second horizontal part is provided with horizontally buffering mouth.

Preferably, a reducing opening which is spliced with the other square pipe is arranged at the end part of one square pipe in the anti-rotation holding claw.

Preferably, the clasping piece is a C-shaped ring, and the top end and the lower end of the C-shaped ring are both provided with tapered edges.

Compared with the prior art, the utility model discloses an advantage lies in with positive effect:

1. the utility model provides a core machine test piece fixer is got in drilling can protect the shape and stabilize the centre gripping to it by holding tightly piece and ejector pin group through with the test piece after protecting in a section of thick bamboo, and anchor clamps accessible linking arm, second ejector pin and prevent changeing and embrace the claw and stably install on getting the core machine to can be to the drill bit of getting on the core machine with realizing that the secondary is got the core with the test piece. The device has the advantages of reasonable design, simple structure, high utilization rate and suitability for large-scale popularization, and is favorable for ensuring the quality of samples.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a top view of a drill core-drilling test specimen holder provided in an embodiment;

FIG. 2 is a front view of a test piece holder for a core drilling machine test provided by an embodiment;

FIG. 3 is an isometric view of an anti-rotation clasping pawl provided by an embodiment;

in the above figures:

1. a clamp; 11. protecting the cylinder; 12. a set of ejector rods; 121. a first ejector rod; 122. a first top leg; 123. a first screw head; 13. a clasping piece; 131. a C-shaped ring; 132. a tapered edge;

2. a connecting arm; 21. a connecting port; 22. square opening;

3. a second ejector rod; 31. a second top leg; 32. a second screw head;

4. anti-rotation holding claws; 41. a square tube; 411. a first horizontal portion; 412. a vertical portion; 413. a second horizontal portion; 414. a buffer port; 415. and (5) necking.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" used herein refer to the same directions as the drawings, and do not limit the structure.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations set forth in the following description of the specific embodiments.

Embodiment, as shown in fig. 1, fig. 2 and fig. 3, the fixture for a test sample of a core drilling and coring machine provided by the present invention comprises a fixture 1, the fixture 1 includes a casing 11, at least two sets of top rod sets 12 distributed up and down are disposed on a side surface of the casing 11, each top rod set 12 includes at least three first top rods 121 distributed in a circular array, a first top foot 122 and a first screw 123 are disposed at two ends of each first top rod 121, the first top foot 122 is located inside the casing 11, a plurality of annular grooves are disposed on an inner wall of the casing 11 and spaced from the top rod sets 12, a holding member 13 is disposed in each annular groove, a pair of horizontal connecting arms 2 are disposed on an outer side of the casing 11, a connecting port 21 with a downward opening is disposed at an end of the connecting arm 2 away from the casing 11, a second top rod 3 connected to the connecting port 21 in a penetrating manner is disposed on one side of the connecting port 21, the second top rod 3 includes a second top foot 31 and a second screw 32, the other side of the connecting port 21 is provided with an anti-rotation holding claw 4, and one end of the anti-rotation holding claw 4 is opposite to the connecting port 21 up and down. The first supporting leg 122 and the second supporting leg 31 are made of elastic rubber materials to increase the connection reliability between the first supporting leg and the test piece, and the first screw head 123 and the second screw head 32 are designed in a trefoil shape to obtain good manual adjustment performance.

Through with the test piece can be held by holding tightly 13 in advance to the test piece behind protecting a section of thick bamboo 11, protect shape and stabilize the centre gripping by ejector pin group 12 to it again, be favorable to improving like this that first ejector pin 121 obtains better concentricity when the centre gripping test piece, be favorable to guaranteeing the test piece quality that the secondary was cored. Anchor clamps 1 accessible linking arm 2 and second ejector pin 3 are installed on getting the crossbeam on the core machine, and the second ejector pin 3 control linking arm 2 and the centre gripping dynamics of crossbeam, and prevent changeing embrace claw 4 then can contact the crossbeam in connector 21 below, avoid this device to produce obvious corner and variant when receiving the mechanical body from top to bottom, and then guarantee the quality that the secondary was got the core, prolonged the in service life of this device to a certain extent moreover.

In order to improve and prevent changeing the structural strength who embraces claw 4, the utility model provides a prevent changeing and embrace claw 4 includes two square pipes 41, and is provided with the square mouth 22 of pegging graft with square pipe 41 on the linking arm 2. In order to improve the utilization ratio of square pipe 41, the utility model provides a square pipe 41 includes the first horizontal part 411 of pegging graft with square opening 22, and the one end that linking arm 2 center was kept away from to first horizontal part 411 is provided with vertical portion 412, and the bottom of vertical portion 412 is provided with the second horizontal part 413 towards the extension of connector 21 direction, and second horizontal part 413 is provided with horizontally buffering mouth 414. The square tube 41 has the axial extension capability of three spaces, has better matching capability with the connecting arm 2 and the connecting port 21 thereof, and can fully meet the stability requirement of the device. Meanwhile, the design of the buffer port 414 on the anti-rotation holding claw 4 can generate corresponding structural deformation after the device is stressed, and can be effectively recovered within a certain limit, so that the assembly stability of the device and the core extractor is improved.

In order to improve the stability of preventing changeing embracing claw 4, the utility model discloses well prevent changeing two square pipes 41 of embracing claw 4 and adopt the form of pegging graft relatively, be provided with the throat 415 of pegging graft with another square pipe 41 like one of them square pipe 41 tip.

In order to improve the fitting performance of clasping member 13 and test piece, the utility model provides an clasping member 13 is C type ring 131, and the top and the low side of C type ring 131 all are provided with toper limit 132. Therefore, the eccentric amount of the test piece loaded into the protective cylinder 11 can be reduced, and the friction and abrasion between the test piece and the clamp 1 can be reduced.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims (4)

1. A test piece fixer for a drilling and core-taking machine test comprises a clamp and is characterized in that the clamp comprises a protective cylinder, at least two groups of ejector rod groups distributed up and down are arranged on the side surface of the protective cylinder, each ejector rod group comprises at least three first ejector rods distributed in a circular array, a first ejector pin and a first screw head are arranged at two ends of each first ejector rod, each first ejector pin is located inside the protective cylinder, a plurality of annular grooves distributed at intervals with the ejector rod groups are formed in the inner wall of the protective cylinder, a holding piece is arranged in each annular groove, a pair of horizontal connecting arms are arranged on the outer side of the protective cylinder, one end, away from the protective cylinder, of each connecting arm is provided with a connecting port with a downward opening, a second ejector rod connected with the connecting port in a penetrating mode is arranged on one side of the connecting port, each second ejector rod comprises a second ejector pin and a second screw head, and anti-rotation holding claws are arranged on the other side of the connecting port, one end of the anti-rotation holding claw is opposite to the connecting port up and down.

2. The test specimen holder for the drilling and core-drilling machine is characterized in that the anti-rotation holding claw comprises two square pipes, a square opening spliced with the square pipes is formed in the connecting arm, each square pipe comprises a first horizontal part spliced with the square opening, a vertical part is arranged at one end, away from the center of the connecting arm, of the first horizontal part, a second horizontal part extending towards the direction of the connecting opening is arranged at the bottom of the vertical part, and a horizontal buffer opening is formed in the second horizontal part.

3. The test piece holder for the drilling and core-pulling machine test is characterized in that a necking which is spliced with the other square pipe is arranged at the end part of one square pipe in the anti-rotation holding claw.

4. The test specimen holder for the core drilling and coring machine as set forth in claim 1, wherein the clasping member is a C-shaped ring, and a tapered edge is provided at both a top end and a lower end of the C-shaped ring.

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