CN216560063U - Grit crushing index apparatus for building engineering quality control - Google Patents

Abstract

The utility model relates to the technical field of sand and gravel detection, and specifically discloses a sand and gravel crushing index measuring instrument for quality management of construction projects. The side of the vertical plate close to the test cylinder is provided with a first chute, a slider is slidably connected in the first chute, and a first support plate is fixedly connected to the side of the slider close to the test cylinder, and the test cylinder penetrates through the first support The test cylinder is rotatably connected with the first support plate, the outer wall of the test cylinder is fixedly connected with a gear ring, the bottom of the first support plate is installed with a second motor through the first L-shaped plate, and the output end of the second motor A gear is connected to the rotating rod, and the gear meshes with the gear ring. The second motor is activated to rotate the test cylinder, and at the same time, the test cylinder is moved vertically upward, so that the sample in the test cylinder can be easily taken out, and the process of taking out the sample is reduced. The damage to the test tube increases the service life of the test tube.

Description

A kind of sand and gravel crushing index measuring instrument for quality management of construction engineering

technical field

The utility model relates to the technical field of sand and gravel detection, in particular to a sand and gravel crushing index measuring instrument for quality management of construction projects.

Background technique

The existing gravel crushing index measuring instrument includes a bottom plate, a test cylinder with openings at both ends, and an indenter. During the experiment, first place the test tube on the chassis, and then weigh 3000g of the sample, accurate to 1g. Put the sample into the test tube, after loading the sample, then press the test tube, and alternately hit the ground 25 times on the left and right. indenter. Put the test tube with the sample on the pressure testing machine, start the pressure testing machine, uniformly load to 200kN at a speed of 1KN/s, stabilize the load for 5s, and then unload. Remove the pressure head, pour out the sample, use a filter sieve with an aperture of 2.36mm to remove the crushed fine particles, and weigh the sample mass left on the filter sieve, accurate to 1g.

However, in the above-mentioned prior art, the sample is compacted in the test tube after being pressurized, and it is difficult to pour out the sample when pouring the sample. The sample is poured out, but this method will damage or even deform the test tube, so it needs to be improved.

Utility model content

The purpose of the utility model is to provide a concrete detection device for construction engineering, which can effectively solve the problems in the prior art.

In order to solve the above-mentioned problems, the utility model adopts the following technical scheme:

A sand and gravel crushing index measuring instrument for quality management of construction engineering, comprising a workbench, the surface of the workbench is symmetrically and fixedly connected with a vertical plate, a test tube is arranged between the vertical plates, and the vertical plate is close to the test tube A first chute is opened on one side of the test tube, a slider is slidably connected in the first chute, a first support plate is fixedly connected to the side of the slider close to the test cylinder, and the test cylinder penetrates the first support plate , and the test cylinder is rotatably connected with the first support plate, the outer wall of the test cylinder is fixedly connected with a gear ring coaxially, the bottom of the first support plate is installed with a second motor through the first L-shaped plate, the first The output ends of the two motors are connected with gears through the rotating rod, and the gears are engaged with the gear ring.

As a preferred solution of the present invention, a first motor is installed on the surface of the vertical plate, and a screw rod is fixedly connected to the output end of the first motor, and the screw rod penetrates through the vertical plate and the slider, and the slider The block is threadedly connected with the screw rod, the screw rod is rotatably connected with the vertical plate, and the slider is T-shaped.

As a preferred solution of the present invention, a cylinder is installed on the surface of the worktable through a second L-shaped plate, a connecting plate is fixedly connected to the output end of the air cylinder, and a pressure plate is connected to the bottom of the connecting plate through a support column. , the outer diameter of the pressure plate is consistent with the inner diameter of the test cylinder, the inner wall of the second L-shaped plate is provided with a second chute, and the second chute is slidably connected with a sliding column, and the sliding column is connected to the Board fixed connection.

As a preferred solution of the present invention, the second chute includes a first vertical portion, the bottom of the first vertical portion is provided with a corrugated portion, and the bottom of the corrugated portion is provided with a second vertical portion straight part.

As a preferred solution of the present invention, the surface of the worktable is provided with a third chute, a second support plate is slidably connected in the third chute, and a fourth slide is symmetrically opened on the surface of the worktable. The fourth chute and the third chute communicate with each other, the fourth chute is slidably connected with a slider, the slider is fixedly connected to the second support plate, and the second support plate is connected to the workbench The upper surface of the second support plate is provided with threaded holes, and the front surface of the second support plate is fixedly connected with a handle.

As a preferred solution of the present invention, the surface of the worktable is provided with a first discharge chute, the first discharge chute and the third chute are connected to each other, and the bottom of the worktable is connected with a discharge hopper. A collection box, a filter plate is installed on the inner wall of the discharge hopper, an electronic scale is connected to one side of the discharge hopper through a weighing box, and a second discharge slot is opened on the side of the discharge hopper close to the weighing box. The filter plate is inclined towards the second discharge chute.

Compared with the prior art, the advantages of the present utility model are:

(1) Through the mutual cooperation between the fourth chute and the slide bar, hold the handle to push the second support plate into the third chute, and use bolts to pass through the threaded holes to fix the second support plate on the surface of the workbench, control the The first motor makes the test cylinder located on the upper surface of the workbench. After adding the sand and gravel samples into the test cylinder, the cylinder is activated to drive the pressure plate to move downward through the cooperation between the second chute and the sliding column. When the pressure of the sample reaches the set value, close the cylinder to make the pressure plate return to its original position, and then start the first motor and the second motor at the same time, so that the test cylinder moves vertically and rotates at the same time, so that the sample in the test cylinder can be easily taken out and weakened. The damage to the test tube during the process of taking out the sample is avoided, and the service life of the test tube is improved.

(2) After the pressure test is over, take out the bolts, pull the handle to move the sand and gravel samples on the second support plate and its surface until the first discharge chute is exposed, and remove the sand and gravel samples after the pressure test from the first discharge chute. It falls into the filter plate, and the crushed fine particles fall into the collection box from the filter hole, which facilitates the recycling of the fine particles and saves resources. The samples left on the filter plate fall into the weighing box from the second discharge chute. Inside, the qualified sample quality is weighed by electronic scale, the device can realize the integration of sand crushing test, sand and gravel sample separation, and weighing of qualified samples, which improves work efficiency and is convenient to use.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present utility model;

Fig. 2 is the partial structure schematic diagram of the present utility model;

Fig. 3 is the enlarged schematic diagram of the structure at A place in Fig. 1 of the utility model;

FIG. 4 is a schematic diagram of the cross-sectional structure along the line B-B in FIG. 1 of the present utility model.

Description of the labels in the figure:

1. Workbench; 2. Vertical plate; 3. First motor; 4. Screw; 5. First chute; 6. Slider; 7. First support plate; 8. Test tube; 9. First L Shaped plate; 10, second motor; 11, rotating rod; 12, gear; 13, gear ring; 14, second L-shaped plate; 15, cylinder; 16, connecting plate; 17, support column; 18, pressure plate; 19 , the second chute; 191, the first vertical part; 192, the wavy part; 193, the second vertical part; 20, the sliding column; 21, the third chute; 22, the fourth chute; 23, the sliding bar; 24, second support plate; 25, handle; 26, threaded hole; 27, first discharge chute; 28, discharge hopper; 29, filter plate; 30, second discharge chute; 31, collection box; 32 , Weighing box; 33. Electronic scales.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, those of ordinary skill in the art can obtain all other The embodiments all belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the orientations shown in the accompanying drawings Or the positional relationship is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. . Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "provided with", "sleeve/connection", "connection", etc., should be understood in a broad sense, such as "Connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be two elements Internal connectivity. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Example 1:

Please refer to Figure 1-2, a sand and gravel crushing index measuring instrument for quality management of construction engineering, including a workbench 1, the surface of the workbench 1 is symmetrically and fixedly connected with a vertical plate 2, and a test tube 8 is arranged between the vertical plates 2 , the side of the vertical plate 2 close to the test cylinder 8 is opened with a first chute 5, and the first chute 5 is slidably connected with a slider 6, the slider 6 is T-shaped, and the slider 6 is fixed on the side close to the test cylinder 8 A first support plate 7 is connected, the test cylinder 8 penetrates the first support plate 7, and the test cylinder 8 is connected with the first support plate 7 in rotation. The bottom of the 7 is fixedly connected with a first L-shaped plate 9, the upper surface of the first L-shaped plate 9 is mounted with a second motor 10, the output end of the second motor 10 is fixedly connected with a rotating rod 11, and the upper end of the rotating rod 11 is connected to the second motor 10. A support plate 7 is rotatably connected, and a gear 12 is coaxially and fixedly connected to the outer wall of the rotating rod 11 , and the gear 12 meshes with the gear ring 13 .

It should be added that a first motor 3 is installed on the surface of the vertical plate 2, and a lead screw 4 is fixedly connected to the output end of the first motor 3. The lead screw 4 runs through the vertical plate 2, the slider 6, and the slider 6 and the lead screw 4 threaded connection, the screw 4 is connected with the vertical plate 2 in rotation.

The working principle of this embodiment is as follows: start the first motor 3 to make the bottom of the test cylinder 8 contact the workbench 1, add sand and gravel samples into the test cylinder 8, and test the samples with a pressure testing machine. The first motor 3 drives the screw 4 to rotate, and through the cooperation between the first chute 5 and the slider 6, the first support plate 7 drives the test cylinder 8 to move vertically upward, and the first motor 3 is activated at the same time. The second motor 10 drives the rotating rod 11 to rotate, the rotation of the rotating rod 11 drives the gear 12 to rotate, the rotation of the gear 12 drives the gear ring 13 to rotate, and the rotation of the gear ring 13 drives the test cylinder 8 to rotate, thereby facilitating the test cylinder The sample in 8 is taken out, which reduces the damage to the test tube 8 during the process of taking out the sample, and improves the service life of the test tube 8 .

Example 2:

This embodiment is an improvement made on the basis of Embodiment 1, and is combined with FIG. 3 again on the basis of Embodiment 1.

A cylinder 15 is installed on the surface of the worktable 1 through the second L-shaped plate 14, the output end of the cylinder 15 is fixedly connected with a connecting plate 16, the bottom of the connecting plate 16 is fixedly connected with a support column 17, and the lower end of the support column 17 is fixedly connected with a pressure plate 18. The outer diameter of the pressure plate 18 is the same as the inner diameter of the test cylinder 8. A second chute 19 is opened on the inner wall of the second L-shaped plate 14. The second chute 19 is slidably connected with a sliding column 20, and the sliding column 20 is connected to the joint. The plate 16 is fixedly connected, and the movement of the pressing plate 18 is facilitated by the mutual cooperation between the second sliding groove 19 and the sliding column 20 .

The second chute 19 includes a first vertical portion 191. The design of the first vertical portion 191 facilitates the vertical downward movement of the pressing plate 18. The bottom of the first vertical portion 191 is provided with a wavy portion 192. The design of the wave-shaped portion 192 is convenient for the pressing plate 18 to move downwards while shaking. The bottom of the wave-shaped portion 192 is provided with a second vertical portion 193. Pressure is applied to the sample.

After the traditional sand crushing index measuring instrument has loaded the sample into the test cylinder 8, it is necessary to move the worktable 1 to the pressure testing machine for pressure testing. Therefore, this embodiment can effectively solve this problem.

The working principle of this embodiment is as follows: by controlling the first motor 3, the test cylinder 8 is positioned on the upper surface of the workbench 1, and after adding the sand and gravel samples into the test cylinder 8, the cylinder 15 is activated to drive the connecting plate 16 to move vertically downward, Under the connecting action of the support column 17, the pressing plate 18 is moved vertically downward, and through the cooperation between the second sliding groove 19 and the sliding column 20, when the sliding column 20 slides in the first vertical portion 191, the pressing plate 18 moves vertically downward above the test cylinder 8. When the spool 20 moves to the junction of the first vertical part 191 and the wave-shaped part 192, the upper end of the pressing plate 18 is just flush with the upper end of the test cylinder 8. When the 20 moves in the wave-shaped part 192 , the pressing plate 18 moves left and right while moving vertically downward in the test cylinder 8 to reduce the gap between the sand and gravel samples. At the end, the pressure of the pressing plate 18 on the sand and gravel samples reaches the set value. After the detection, the cylinder 15 is closed to make the pressing plate 18 return to its original position, and then the sand and gravel samples are taken out by the method of Example 1.

Example 3:

This embodiment is an improvement made on the basis of Embodiment 2, and is combined with FIG. 4 again on the basis of Embodiment 2.

A third chute 21 is opened on the surface of the worktable 1, and a second support plate 24 is slidably connected in the third chute 21. A fourth chute 22 is symmetrically opened on the surface of the worktable 1, and the fourth chute 22 and the third The sliding grooves 21 pass through each other, the fourth sliding groove 22 is slidably connected with a sliding bar 23, the sliding bar 23 is T-shaped, and the sliding bar 23 is fixedly connected with the second support plate 24. To ensure the stability, the second support plate 24 and the upper surface of the workbench 1 are both provided with threaded holes 26, and the front surface of the second support plate 24 is fixedly connected with a handle 25.

The surface of the worktable 1 is provided with a first discharge chute 27, and the first discharge chute 27 and the third chute 21 communicate with each other. The bottom of the worktable 1 is connected with a collection box 31 through the discharge hopper 28. A filter plate 29 is installed, the diameter of the filter hole on the surface of the filter plate 29 is 2.36mm, one side of the discharge hopper 28 is connected with an electronic scale 33 through the weighing box 32, and the side of the discharge hopper 28 close to the weighing box 32 is opened with a second discharge material The trough 30, the filter plate 29 is inclined towards the second discharge trough 30.

Since the traditional sand and gravel crushing index measuring instrument takes out the sand and gravel samples in the test cylinder 8, it needs to be transferred to the filter device, and the mass of the sample left on the filter screen is weighed, and the traditional sand and gravel crushing index is It is difficult to integrate the design of the measuring instrument, resulting in relatively low work efficiency. Therefore, this embodiment can effectively solve this problem.

The working principle of this embodiment is: before the detection, through the cooperation between the fourth chute 22 and the slider 23, the second support plate 24 is pushed into the third chute 21 by the handle 25, and the bolts are passed through the threaded holes 26. Fix the second support plate 24 on the surface of the workbench 1. After the test, separate the test cylinder 8 from the sand sample by operating the first motor 3 and the second motor 10, take out the bolt, and pull the handle 25 to make the second support The sand and gravel samples on the plate 24 and its surface move until the first discharge chute 27 is exposed. The hole falls into the collection box 31, the sample left on the filter plate 29 falls into the weighing box 32 from the second discharge chute 30, and the qualified sample quality is weighed by the electronic scale 33. The device can realize pressure testing, The separation of sand and gravel samples and the weighing of qualified samples are integrated, which improves work efficiency and facilitates use.

The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. The equivalent replacement or modification of the new technical solution and its improvement concept shall be included within the protection scope of the present invention.

Claims (6)

1. The utility model provides a grit crushing index apparatus for building engineering quality control, includes workstation (1), its characterized in that: vertical plates (2) are symmetrically and fixedly connected to the surface of the workbench (1), a test tube (8) is arranged between the vertical plates (2), one side of the vertical plate (2) close to the test tube (8) is provided with a first chute (5), a sliding block (6) is connected in the first sliding groove (5) in a sliding way, a first supporting plate (7) is fixedly connected on one side of the sliding block (6) close to the test tube (8), the test tube (8) penetrates through the first supporting plate (7), and the test tube (8) is rotationally connected with the first supporting plate (7), a toothed ring (13) is coaxially and fixedly connected on the outer wall of the test tube (8), the bottom of the first supporting plate (7) is provided with a second motor (10) through a first L-shaped plate (9), the output end of the second motor (10) is connected with a gear (12) through a rotating rod (11), and the gear (12) is meshed with a gear ring (13).

2. The sand crushing index tester for building engineering quality management according to claim 1, characterized in that: the surface mounting of riser (2) has first motor (3), the output end fixedly connected with lead screw (4) of first motor (3), riser (2), slider (6) are run through in lead screw (4), slider (6) and lead screw (4) threaded connection, lead screw (4) rotate with riser (2) and are connected, slider (6) are the T shape.

3. The sand crushing index tester for building engineering quality management according to claim 2, characterized in that: cylinder (15) are installed through second L shaped plate (14) to the surface of workstation (1), the output fixedly connected with linkage plate (16) of cylinder (15), the bottom of linkage plate (16) is connected with clamp plate (18) through support column (17), the external diameter of clamp plate (18) is unanimous with the internal diameter of examination section of thick bamboo (8), it has second spout (19) to open on the inner wall of second L shaped plate (14), sliding connection has traveller (20) in second spout (19), traveller (20) and linkage plate (16) fixed connection.

4. The sand crushing index tester for building engineering quality management according to claim 3, characterized in that: the second sliding chute (19) comprises a first vertical portion (191), a wavy portion (192) is arranged at the bottom of the first vertical portion (191), and a second vertical portion (193) is arranged at the bottom of the wavy portion (192).

5. The sand crushing index tester for building engineering quality management according to claim 2, characterized in that: open on the surface of workstation (1) has third spout (21), sliding connection has second backup pad (24) in third spout (21), the surface symmetry of workstation (1) is opened has fourth spout (22), fourth spout (22) link up each other with third spout (21), sliding connection has draw runner (23) in fourth spout (22), draw runner (23) and second backup pad (24) fixed connection, threaded hole (26) have all been opened with the upper surface of workstation (1) in second backup pad (24), the positive fixedly connected with handle (25) of second backup pad (24).

6. The sand crushing index tester for building engineering quality management according to claim 5, characterized in that: open on the surface of workstation (1) has first blown down tank (27), first blown down tank (27) link up each other with third spout (21), the bottom of workstation (1) is connected with collecting box (31) through out hopper (28), install filter (29) on the inner wall of play hopper (28), one side of going out hopper (28) is connected with electronic scale (33) through weighing case (32), one side that goes out hopper (28) is close to weighing case (32) is opened there is second blown down tank (30), filter (29) are towards second blown down tank (30) slope.

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