CN215448755U

CN215448755U - Concrete test block compression testing machine

Info

Publication number: CN215448755U
Application number: CN202121700012.7U
Authority: CN
Inventors: 秦磊; 侯龙龙
Original assignee: Xi'an Tiansheng Concrete Co ltd
Current assignee: Xi'an Tiansheng Concrete Co ltd
Priority date: 2021-07-24
Filing date: 2021-07-24
Publication date: 2022-01-07
Anticipated expiration: 2031-07-24

Abstract

The application relates to the field of concrete test equipment, especially, relate to a concrete test block compression testing machine, it includes testing machine body and height-adjustable's positioning mechanism, and the testing machine body includes top board and holding down plate, and positioning mechanism can dismantle with the holding down plate and be connected. The application has the effect of facilitating the determination of the descending position of the upper pressure plate.

Description

Concrete test block compression testing machine

Technical Field

The application relates to the field of concrete test equipment, in particular to a concrete test block compression testing machine.

Background

In the concrete industry, in order to judge whether the concrete meets the building requirements, various performances of the concrete need to be tested; among them, the compressive strength of concrete is one of the main test objects. The concrete test block compression tester is mainly used for testing the compression strength of building material test blocks such as concrete, cement, high-strength bricks and the like.

Before the test is carried out, an operator needs to adjust the height of the upper pressing plate according to the size of the test block, so that the distance between the upper pressing plate and the lower pressing plate is slightly larger than the height of the test block (the difference value is generally controlled to be between 2mm and 1 cm), and the test is conveniently carried out. When the distance between the upper pressing plate and the lower pressing plate is controlled, the test block is often directly placed on the lower pressing plate, then the descending height of the upper pressing plate is controlled, in order to avoid damaging the test block and influencing the detection result, the distance between the upper pressing plate and the top end of the test block is controlled to be 2mm-1cm, and therefore an operator needs to determine the final descending position of the pressing plate through multiple observations.

In view of the above-mentioned related art, the inventor found that it is very inconvenient for an operator to control the final lowering position of the lower platen.

SUMMERY OF THE UTILITY MODEL

In order to facilitate the decline position of confirming the top board, the application provides a concrete test block compression testing machine.

The application provides a concrete test block compression testing machine adopts following technical scheme:

the utility model provides a concrete test block compression testing machine, includes testing machine body and height-adjustable's positioning mechanism, the testing machine body includes top board and holding down plate, positioning mechanism can dismantle with the holding down plate and be connected.

By adopting the technical scheme, before the test device is used, the height of the positioning mechanism is adjusted to be any height which is 2mm-1cm higher than the height of a to-be-tested part, then the positioning mechanism is installed on the lower pressure plate, the upper pressure plate is adjusted to be descended to be abutted against the top end of the positioning mechanism, namely, the distance between the upper pressure plate and the lower pressure plate can be controlled, and the to-be-tested part is placed on the lower pressure plate after the positioning mechanism is disassembled, so that the test can be carried out; the operator can adjust the descending height of the upper pressure plate without repeatedly observing, the possibility of damaging the piece to be tested is reduced, and the convenience of determining the descending position of the upper pressure plate is improved.

Optionally, the positioning mechanism includes a positioning column, the positioning column includes an inner column and an outer cylinder, the outer cylinder is sleeved outside the inner column, and the inner column slides along the length direction of the outer cylinder; the positioning mechanism further comprises a fixing piece for fixing the inner column.

Through adopting above-mentioned technical scheme, the inner prop slides along urceolus length direction, fixes the back through the mounting, can realize adjusting the height of reference column.

Optionally, the fixing part comprises an insertion piece connected with the side wall of the inner column near the bottom end, and the insertion piece extends horizontally outwards along the direction far away from the central axis of the inner column; the urceolus length direction is seted up and is supplied the perpendicular gliding spout of inserted sheet, and the urceolus outer wall sets up a plurality of location tracks that supply the inserted sheet level to slide, and a plurality of location tracks are followed spout length direction interval sets up, and a plurality of location tracks respectively with spout through connection.

Through adopting above-mentioned technical scheme, realized the sliding connection of inner prop and urceolus, when the inner prop upwards slides and makes the reference column height equal with the target height, rotatory inner prop can make the inserted sheet slide to the location track with the spout intercommunication from the spout in to realize the temporary fixation of inner prop.

Optionally, a plurality of scales are arranged on the outer wall of the outer barrel close to the sliding groove, and the plurality of positioning rails are respectively in through connection with the sliding groove at each scale.

Through adopting above-mentioned technical scheme, when the interior post slided to the scale that the target height shows, rotatory interior post can make the inserted sheet slide to the location track that corresponds scale department from the spout in to realize the temporary fixation of interior post, improved the convenience of adjusting the reference column height.

Optionally, the bottom of the inner column is provided with a rubber pad, and the rubber pad is sleeved on the outer wall of the inner column.

Through adopting above-mentioned technical scheme, the rubber pad is located between inner column and the urceolus, has increased frictional force between inner column and urceolus to improve the stability of fixed back inner column temporarily, reduced the inner column can not stand the pressure of clamp plate and the possibility that the gliding.

Optionally, the bottom of the outer barrel is connected with a limiting mechanism for enabling the circle center of the bottom surface of the outer barrel to coincide with the circle center of the lower pressing plate.

By adopting the technical scheme, when the circle center of the bottom surface of the outer barrel is coincided with the circle center of the lower pressing plate through the limiting mechanism, the circle center of the inner column is also coincided with the circle center of the upper pressing plate, so that when the upper pressing plate is abutted against the upper end of the inner column, the upper pressing plate is uniformly stressed on the contact surface with the inner column, and the possibility that the upper pressing plate is inclined due to uneven stress of the upper pressing plate and the subsequent measurement precision is further influenced is reduced.

Optionally, the testing machine body further comprises four vertical columns, the bottom ends of the columns are arranged into a quadrangle of which the center point is superposed with the center point of the lower pressing plate, and the side length of the quadrangle is larger than the diameter of the lower pressing plate; the limiting mechanism comprises a connecting ring sleeved on the outer peripheral surface of the outer barrel, the outer peripheral surface of the connecting ring is connected with four connecting rods, one end of each connecting rod is fixedly connected with a hook hung on the stand column, one end, far away from the hook, of each connecting rod is detachably connected with the connecting ring through a hanging buckle, and the connecting rods are arranged along the diagonal line of a quadrangle formed at the bottom end of the stand column; the hook is connected with the upright column, the hanging buckle is connected with the connecting rod in a hanging mode, and when the hanging buckle, the connecting rod and the hook are connected in a tightening mode, the circle center of the bottom surface of the outer barrel coincides with the circle center of the lower pressing plate.

Through adopting above-mentioned technical scheme, realized linking together of go-between and stand, further realized linking together of stand and reference column, and the connecting rod that the quadrangle diagonal that forms along the stand bottom set up makes the coincidence of go-between central point and quadrangle central point, and then realized the coincidence setting of urceolus bottom surface centre of a circle and holding down plate centre of a circle, and hang the knot and make connecting rod and go-between realize dismantling to be connected, when the connecting rod takes place to damage, dismantle alone change can, stop gear's life has been improved.

Optionally, the connecting ring is in threaded connection with the bottom of the outer barrel.

By adopting the technical scheme, the detachable connection of the outer barrel and the connecting ring is realized, and when the connecting ring is damaged due to stress, the connecting ring is replaced independently.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the telescopic positioning mechanism, the convenience of determining the descending position of the upper pressure plate is improved;

2. the positioning column is fixed after stretching through the arrangement of the sliding chute, the fixing piece and the positioning track, so that the height of the positioning mechanism is adjusted;

3. through setting up stop gear for reference column central axis can be with the coincidence of the straight line of upper and lower clamp plate central point place, has reduced the upper press plate and has taken place the slope because the atress is uneven, and then influences follow-up measurement accuracy's possibility.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a positioning mechanism according to an embodiment of the present application;

FIG. 3 is a drawing showing the fitting relationship between the inner post, the outer barrel and the connection ring according to the embodiment of the present application.

Description of reference numerals: 1. a testing machine body; 11. a column; 12. an upper pressure plate; 13. a lower pressing plate; 2. a positioning mechanism; 21. a positioning column; 211. an inner column; 212. an outer cylinder; 2121. calibration; 2122. positioning the track; 2123. a chute; 22. a fixing member; 221. inserting sheets; 222. a rubber pad; 3. a limiting mechanism; 31. a connecting ring; 32. a hitch assembly; 321. hanging and buckling; 322. a connecting rod; 323. and (4) hanging hooks.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a concrete test block compression testing machine, and with reference to fig. 1, the compression testing machine comprises a testing machine body 1 and a positioning mechanism 2, wherein the height of the positioning mechanism 2 is adjustable, and the positioning mechanism 2 is detachably connected with the testing machine body 1; the tester body 1 comprises a circular upper pressure plate 12, a circular lower pressure plate 13 and four columns 11, wherein the length direction of each column 11 is vertical to the plane of the corresponding lower pressure plate 13; the bottom ends of the four upright posts 11 are arranged into a quadrangle of which the center point is superposed with the circle center of the lower pressing plate 13; the positioning mechanism 2 is located between the upper and lower press plates 13. Before the test, the height of the positioning mechanism 2 is adjusted to enable the height to be larger than the height of the block to be tested, the height difference is controlled to be between 2mm and 1cm, then the height of the upper pressing plate 12 is adjusted, when the upper pressing plate 12 and the lower pressing plate 13 are abutted to the positioning mechanism 2 at the same time, the descending height of the upper pressing plate 12 can be determined, then the positioning mechanism 2 is taken out, the concrete block is placed in, the distance between the concrete block and the upper pressing plate 12 meets the test requirement, and the convenience of determining the descending position of the upper pressing plate 12 is greatly improved.

Referring to fig. 2 and 3, the positioning mechanism 2 includes a positioning column 21 and a fixing member 22, the positioning column 21 includes an inner column 211 and an outer cylinder 212 sleeved outside the inner column 211, and the inner column 211 slides in the outer cylinder 212 along the axial direction of the outer cylinder 212, so that the sliding between the inner column 211 and the outer cylinder 212 can realize the height adjustment of the positioning column 21. The inner column 211 may be solid, hollow, or honeycomb, as long as the upper end surface of the inner column 211 is a horizontal surface that can be abutted against the upper platen 12.

The fixing part 22 comprises a group of inserting pieces 221 fixedly connected with the bottom of the inner column 211, the inserting pieces 221 are symmetrically arranged along the central axis of the inner column 211, the inserting pieces 221 horizontally extend outwards from the side wall of the inner column 211 close to the bottom end along the direction far away from the central axis of the inner column 211, and the inserting pieces 221 and the inner column 211 are integrally formed; a set of sliding grooves 2123 for the insertion pieces 221 to slide is formed in the sidewall of the outer cylinder 212 along the axial direction, and a plurality of scales 2121 are formed on the sidewall of the outer cylinder 212 near the sliding grooves 2123 for precisely adjusting the height of the positioning column 21. The side wall of the outer cylinder 212 is further provided with a plurality of horizontal positioning rails 2122, the positioning rails 2122 are arranged at intervals along the length direction of the sliding slot, the positioning rails 2122 are respectively connected with the sliding slot 2123 at the scales 2121, and the inserting piece 221 can slide in the horizontal direction after being inserted into the positioning rails 2122. Thus, when the inserting piece 221 slides to the target scale 2121 in the sliding slot 2123 so that the positioning column 21 reaches the target height, rotating the inner column 211 can drive the inserting piece 221 to insert into the positioning track 2122 of the corresponding scale 2121, which is located in the sliding slot 2123 and runs through, so as to temporarily fix the inner column 211.

In order to better improve the stability of the temporarily fixing of the inner column 211, the fixing member 22 further includes a rubber pad 222 on the outer peripheral surface of the bottom end of the side wall of the inner column 211, and the rubber pad 222 is sleeved on the outer wall of the inner column 211, so that the rubber pad 222 increases the friction force between the outer cylinder 212 and the inner column 211, thereby improving the temporarily fixing stability of the inner column 211 and reducing the possibility that the inner column 211 falls due to the insufficient pressure.

When the upper platen 12 abuts against the upper end face of the inner column 211, the upper platen 12 is subjected to a force of the inner column 211 on the upper platen 12 from bottom to top, and if the deviation offset distance of the central axis of the inner column 211 and the vertical straight line of the circle center of the upper platen 12 is too large, the upper platen 12 may incline due to uneven stress, thereby affecting the precision of the subsequent test result.

In order to reduce the possibility of the above problem, referring to fig. 3, the outer wall of the outer cylinder 212 is connected with a limiting mechanism 3, the limiting mechanism 3 comprises a hanging component 32 and a connecting ring 31 in threaded connection with the outer wall of the outer cylinder 212, and the connecting ring 31 is located at the bottom end of the outer cylinder 212, so that the sliding of the inserting piece 221 is not affected; the hanging assembly 32 comprises four connecting rods 322, and a hook 323 and a hanging buckle 321 which are respectively positioned at two ends of the connecting rods 322, wherein one end of the connecting rod 322 is welded with the hook 323, and the hook 323 is hung on the upright post 11; the other end of the connecting rod 322 is welded with the hanging buckle 321, a hanging ring for buckling the hanging buckle 321 is arranged on the connecting ring 31, and the connecting rod 322 is buckled with the connecting ring 31 through the matching of the hanging buckle 321 and the hanging ring;

when the hanging buckle 321 is buckled on the connecting ring 31 and the hook 323 is hung on the upright post 11, and the hanging buckle 321, the connecting rod 322 and the hook 323 are tightly connected, the center of the bottom surface of the outer cylinder 212 coincides with the center of the lower pressing plate 13, so that the center axis of the inner column 211 coincides with the vertical straight line of the center of the upper pressing plate 12, and the possibility of inclination of the upper pressing plate 12 due to uneven stress can be reduced.

And the connecting ring 31 and the outer cylinder 212 are detachably connected through threads, so that the connecting ring 31 can be replaced independently when the connecting ring 31 is damaged; the connecting rod 322 is detachably connected with the connecting ring 31 through the hanging buckle 321, so that when the connecting rod 322 is damaged, only the connecting rod 322 needs to be replaced independently; thus, the service life of the positioning mechanism 2 can be prolonged.

The connecting rod 322 is detachably connected with the upright post 11 through the hook 323, so that the limiting mechanism 3 is detachably connected with the upright post 11, the positioning mechanism 2 connected with the limiting mechanism 3 is further detachably connected with the testing machine body 1, when the device is used, the positioning mechanism 2 is hung on the testing machine body 1 through the limiting mechanism 3, and the leveling and position determination of the upper pressing plate 12 can be carried out; after the position is determined, the positioning mechanism 2 is detached, and then the test can be carried out. The recycling of the positioning mechanism 2 is realized, and when the positioning mechanism 2 is damaged, the positioning mechanism can be replaced independently.

The implementation principle of the concrete test block compression testing machine in the embodiment of the application is as follows: before use, the positioning column 21 is adjusted to a specified height, the hook 323 is hung on the upright post 11, so that the connecting ring 31 connected with the hook 323 through the connecting rod 322 drives the outer cylinder 212 to a position where the circle center of the outer cylinder 212 coincides with the circle center of the lower pressing plate 13, the position of the upper pressing plate 12 is adjusted, the upper pressing plate 12 is abutted against the top end of the inner column 211, and the positioning of the upper pressing plate 12 can be completed; and then the positioning column 21 is taken down, and a concrete test block is placed on the positioning column, so that the test can be carried out.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a concrete test block compression testing machine which characterized in that: including testing machine body (1) and height-adjustable's positioning mechanism (2), testing machine body (1) includes top board (12) and holding down plate (13), positioning mechanism (2) can be dismantled with holding down plate (13) and be connected.

2. The concrete test block compression testing machine of claim 1, wherein: the positioning mechanism (2) comprises a positioning column (21), the positioning column (21) comprises an inner column (211) and an outer cylinder (212), the outer cylinder (212) is sleeved outside the inner column (211), and the inner column (211) slides along the length direction of the outer cylinder (212); the positioning mechanism (2) further comprises a fixing piece (22) used for fixing the inner column (211).

3. The concrete test block compression testing machine of claim 2, wherein: the fixing part (22) comprises an inserting sheet (221) connected with the side wall of the inner column (211) near the bottom end, and the inserting sheet (221) extends outwards horizontally along the direction far away from the central axis of the inner column (211); the outer barrel (212) is provided with a sliding groove (2123) for the insertion piece (221) to vertically slide in the length direction, the outer wall of the outer barrel (212) is provided with a plurality of positioning tracks (2122) for the insertion piece (221) to horizontally slide, the plurality of positioning tracks (2122) are arranged along the length direction of the sliding groove (2123) at intervals, and the plurality of positioning tracks (2122) are respectively communicated with the sliding groove (2123).

4. The concrete test block compression testing machine of claim 3, wherein: the outer wall of the outer barrel (212) is provided with a plurality of scales (2121) close to the sliding groove (2123), and a plurality of positioning tracks (2122) are respectively communicated with the sliding groove (2123) at the scales (2121).

5. The concrete test block compression testing machine of claim 2, wherein: the bottom of the inner column (211) is provided with a rubber pad (222), and the rubber pad (222) is sleeved on the outer wall of the inner column (211).

6. The concrete test block compression testing machine of claim 2, wherein: the bottom of the outer cylinder (212) is connected with a limiting mechanism (3) which is used for enabling the circle center of the bottom surface of the outer cylinder (212) to coincide with the circle center of the lower pressing plate (13).

7. The concrete test block compression testing machine of claim 6, wherein: the testing machine body (1) further comprises four vertical columns (11), the bottom ends of the columns (11) are arranged into a quadrangle of which the center point is superposed with the center point of the lower pressing plate (13), and the side length of the quadrangle is larger than the diameter of the lower pressing plate (13);

the limiting mechanism (3) comprises a connecting ring (31) sleeved on the outer peripheral surface of the outer barrel (212), the outer peripheral surface of the connecting ring (31) is connected with four connecting rods (322), one end of each connecting rod (322) is fixedly connected with a hook (323) hung on the upright post (11), one end, far away from the hook (323), of each connecting rod (322) is detachably connected with the connecting ring (31) through a hanging buckle (321), and the connecting rods (322) are arranged along the diagonal of a quadrangle formed at the bottom end of the upright post (11);

the hook (323) is connected with the upright post (11), the hanging buckle (321) is hung on the connecting rod (322), and when the hanging buckle (321), the connecting rod (322) and the hook (323) are tightly connected, the circle center of the bottom surface of the outer cylinder (212) coincides with the circle center of the lower pressure plate (13).

8. The concrete test block compression testing machine of claim 7, wherein: the connecting ring (31) is in threaded connection with the bottom of the outer barrel (212).