CN219608477U - Sampling device for concrete gravel - Google Patents

Abstract

The utility model provides a sampling device for concrete sand, which belongs to the technical field of building material sampling and comprises an inner cylinder, an outer cylinder, a rotating shaft, a sleeve rod and a driving motor; the upper end of the inner cylinder is connected with the output end of the driving motor by virtue of a rotating shaft, the middle part of the inner cylinder is provided with a containing cavity, and the side wall of the inner cylinder is provided with an overflow hole communicated with the containing cavity; the outer cylinder is movably sleeved on the outer side of the inner cylinder, and the lower end of the outer cylinder is provided with an opening; the upper end of the outer cylinder is connected with a sleeve rod, the sleeve rod is sleeved on the outer side of the rotating shaft, and the sleeve rod moves along the length direction of the rotating shaft to pull the outer cylinder to shield or open the overflow hole. According to the sampling device for concrete sand, provided by the utility model, through the sleeving arrangement of the inner cylinder and the outer sleeve, shielding and opening of the overflow holes on the inner cylinder can be realized, and sampling at different positions with different depths can be realized; and after sampling, no sample leaks out, so that the accuracy of sampling is ensured.

Description

Sampling device for concrete gravel

Technical Field

The utility model belongs to the technical field of building material sampling, and particularly relates to a sampling device for concrete sand.

Background

Concrete refers to a generic term for engineering composite materials in which aggregate is consolidated into a whole by a cementitious material. The term concrete generally refers to cement as a cementing material, sand and stone as aggregate; the cement concrete, also called ordinary concrete, obtained by mixing the cement concrete with water (which can contain additives and admixtures) according to a certain proportion is widely applied to civil engineering. In order to ensure quality in concrete production, it is necessary to detect sand and stone, and thus a sand and stone sampling device for detecting concrete raw materials is required.

However, the conventional sand sampling device for concrete raw material detection in the market under the eyes can spill sand in the sand sampling process, and the sampling result is affected.

Disclosure of Invention

The utility model aims to provide a sampling device for concrete sand and stone, and aims to solve the problem that sand and stone are easy to spill in the sampling process, and the sampling result is affected.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the sampling device for the concrete sand stone comprises an inner cylinder, an outer cylinder, a rotating shaft, a sleeve rod and a driving motor; the upper end of the inner cylinder is connected with the output end of the driving motor by the rotating shaft, the middle part of the inner cylinder is provided with a containing cavity, and the side wall of the inner cylinder is provided with an overflow hole communicated with the containing cavity; the outer cylinder is movably sleeved on the outer side of the inner cylinder, and the lower end of the outer cylinder is provided with an opening; the upper end of the outer cylinder is connected with the loop bar, the loop bar is sleeved on the outer side of the rotating shaft, and the loop bar moves along the length direction of the rotating shaft to pull the outer cylinder to shield or open the overflow hole.

As another embodiment of the utility model, the inner cylinder comprises a cylinder bottom and a cylinder cover, and the cylinder cover is of a conical structure; the cylinder cover extends out of the open end of the outer cylinder.

In another embodiment of the present utility model, a plurality of overflow holes are formed in the circumferential direction of the inner cylinder, and the plurality of overflow holes are uniformly distributed on the side plate of the inner cylinder.

As another embodiment of the present utility model, the present utility model further comprises a fixed handle and an adjusting handle, wherein the fixed handle is rotatably connected to the rotating shaft; the adjusting handle is rotationally connected to the upper end of the loop bar, and is positioned below the fixed handle.

As another embodiment of the utility model, the upper end of the loop bar is connected with an adjusting box; the rotary shaft penetrates through the adjusting box, an adjusting rod is vertically connected to the rotary shaft, and a reset spring is arranged between the adjusting rod and the bottom of the adjusting box.

As another embodiment of the present utility model, the adjusting handle is connected to the outside of the adjusting box.

As another embodiment of the utility model, a guide groove is arranged on the side wall of the regulating box, and the guide groove is consistent with the length direction of the rotating shaft; the adjusting rod is positioned in the guide groove and is in sliding connection with the guide groove.

As another embodiment of the present utility model, the upper part of the outer cylinder has a tapered structure.

The sampling device for concrete sand has the beneficial effects that: compared with the prior art, the sampling device for the concrete sand can realize shielding and opening of the overflow holes on the inner cylinder and can realize sampling at different positions with different depths through the sleeving arrangement of the inner cylinder and the outer sleeve; and after sampling, no sample leaks out, so that the accuracy of sampling is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a sampling device for concrete sand according to an embodiment of the present utility model.

In the figure: 1. an inner cylinder; 2. an overflow hole; 3. a cylinder cover; 4. an outer cylinder; 5. a rotation shaft; 6. a loop bar; 7. an adjusting box; 8. a return spring; 9. an adjusting rod; 10. an adjusting handle; 11. a fixed handle; 12. and driving the motor.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1, a sampling device for concrete sand according to the present utility model will now be described. The sampling device for the concrete sand comprises an inner cylinder 1, an outer cylinder 4, a rotating shaft 5, a loop bar 6 and a driving motor 12; the upper end of the inner cylinder 1 is connected with the output end of a driving motor 12 by a rotating shaft 5, the middle part of the inner cylinder 1 is provided with a containing cavity, and the side wall of the inner cylinder 1 is provided with an overflow hole 2 communicated with the containing cavity; the outer cylinder 4 is movably sleeved on the outer side of the inner cylinder 1, and the lower end of the outer cylinder 4 is provided with an opening; the upper end of the outer cylinder 4 is connected with a sleeve rod 6, the sleeve rod 6 is sleeved on the outer side of the rotating shaft 5, and the sleeve rod 6 moves along the length direction of the rotating shaft 5 to pull the outer cylinder 4 to shield or open the overflow hole 2.

Compared with the prior art, the sampling device for concrete sand provided by the utility model has the advantages that the upper end of the inner cylinder 1 is connected with the rotating shaft 5, and the driving motor 12 is connected with the rotating shaft 5; the outer cylinder 4 is connected to the outer side of the inner cylinder 1, the upper end of the outer cylinder 4 is connected with the sleeve rod 6, the sleeve rod 6 is sleeved on the outer side of the rotating shaft 5, and the sleeve rod 6, the outer cylinder 4 and the inner cylinder 1 all synchronously rotate with the rotating shaft 5.

When drilling to a sampling point, the driving motor 12 is turned off, the pull sleeve rod 6 moves upwards, and the sleeve rod 6 drives the outer cylinder 4 to slide upwards until the overflow hole 2 on the side wall of the inner cylinder 1 is exposed; the sand and stone can enter the accommodating cavity through the overflow hole 2 on the side wall of the inner cylinder 1 under the action of the surrounding pressure; then pushing down the sleeve rod 6 to make the sleeve rod 6 drive the outer cylinder 4 to move down until the overflow hole 2 on the side wall of the inner cylinder 1 is shielded. After the inner cylinder 1 and the outer cylinder 4 are taken out simultaneously, the sleeve rod 6 is pulled again to expose the overflow hole 2, and the taken sample flows out from the overflow hole 2, so that sampling is realized.

According to the sampling device for concrete sand, provided by the utility model, through the sleeving arrangement of the inner cylinder 1 and the outer sleeve, shielding and opening of the overflow hole 2 on the inner cylinder 1 can be realized, and sampling at different positions with different depths can be realized; and after sampling, no sample leaks out, so that the accuracy of sampling is ensured.

In some possible embodiments, referring to fig. 1, the inner cylinder 1 includes a cylinder bottom and a cylinder cover 3, and the cylinder cover 3 has a conical structure; the cylinder cover 3 extends from the open end of the outer cylinder 4.

In order to reduce the resistance in drilling, the cylinder cover 3 of the inner cylinder 1 extending out of the outer cylinder 4 is in a conical structure. And the cylinder bottom is positioned at the upper end of the inner cylinder 1 and is contacted with the bottom of the outer cylinder 4.

The top and bottom surfaces of the receiving chamber are both horizontal surfaces to facilitate removal of the sample.

Further, the inner cylinder 1 further comprises annular side plates, the upper end and the lower end of each side plate are respectively connected with the cylinder bottom and the cylinder cover 3, and the overflow holes 2 are formed in the side plates. During sampling, sand and stone samples enter the accommodating cavity of the inner barrel 1 from the overflow holes 2 on the side plates.

Optionally, a plurality of overflow holes 2 are formed in the circumferential direction of the inner barrel 1, and the plurality of overflow holes 2 are uniformly distributed on a side plate of the inner barrel 1. Samples with the same height can enter the overflow holes 2 from multiple directions, so that the accuracy of sample detection is improved.

In some possible embodiments, referring to fig. 1, the sampling device for concrete sand further comprises a fixed handle 11 and an adjusting handle 10, wherein the fixed handle 11 is rotatably connected to the rotating shaft 5; an adjusting handle 10 is rotatably connected to the upper end of the loop bar 6, and the adjusting handle 10 is positioned below the fixed handle 11.

The fixed handle 11 is sleeved outside the rotary shaft 5 by means of a rotary bearing. The adjusting handle 10 is sleeved outside the loop bar 6 by means of a rotating bearing. When the rotation shaft 5 and the loop bar 6 are simultaneously rotated, both the fixed handle 11 and the adjustment handle 10 can be maintained in a stable state.

The adjusting handle 10 is located below the fixed handle 11, and when the adjusting handle 10 is pulled to be close to the fixed handle 11, the sleeve rod 6 pulls the outer cylinder 4 to move upwards, so that the overflow hole 2 of the inner cylinder 1 located inside the outer cylinder 4 is exposed.

When the adjusting handle 10 moves downwards, the sleeve rod 6 pulls the outer cylinder 4 to move downwards, so that the outer cylinder 4 covers the overflow hole 2 of the inner cylinder 1.

In some possible embodiments, referring to fig. 1, an adjusting box 7 is connected to the upper end of the loop bar 6; the rotating shaft 5 penetrates through the adjusting box 7, an adjusting rod 9 is vertically connected to the rotating shaft 5, and a reset spring 8 is arranged between the adjusting rod 9 and the bottom of the adjusting box 7.

The upper end of the loop bar 6 is connected with an adjusting box 7, and the adjusting box 7 is fixedly connected with the loop bar 6. The rotating shaft 5 penetrates through the adjusting box 7, and a connecting rod on the rotating shaft 5 is positioned in the inner cavity of the adjusting box 7; a return spring 8 is arranged between the connecting rod and the bottom of the regulating box 7, and the return spring 8 is always in a compressed state. Under the action of external force, the reset spring 8 drives the connecting rod to be positioned at the upper part of the regulating box 7, thereby ensuring that the outer cylinder 4 is always in a state of shielding the overflow hole 2.

Optionally, an adjusting handle 10 is connected to the outside of the adjusting box 7.

Optionally, the adjustment handle 10 is rotatably connected to the outside of the top plate of the adjustment box 7 by means of bearings.

In some possible embodiments, referring to fig. 1, a guiding groove is provided on a side wall of the adjusting box 7, and the guiding groove is consistent with the length direction of the rotating shaft 5; the adjusting rod 9 is positioned in the guide groove and is in sliding connection with the guide groove.

The side wall of the adjusting box 7 is provided with a longitudinal guide groove, and the end part of the adjusting rod 9 is slidably arranged in the guide groove.

Under the action of the adjusting rod 9, the adjusting box 7, the loop bar 6 and the outer cylinder 4 all rotate synchronously with the rotating shaft 5.

In some possible embodiments, referring to fig. 1, the upper portion of the outer barrel 4 is tapered.

The lower end of the outer barrel 4 is of an open structure, and the upper end of the outer barrel 4 is of a conical structure, so that resistance to movement in a sand sample is reduced.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (8)

1. The sampling device for the concrete sand is characterized by comprising an inner cylinder (1), an outer cylinder (4), a rotating shaft (5), a sleeve rod (6) and a driving motor (12); the upper end of the inner cylinder (1) is connected with the output end of the driving motor (12) by virtue of the rotating shaft (5), the middle part of the inner cylinder (1) is provided with a containing cavity, and the side wall of the inner cylinder (1) is provided with an overflow hole (2) communicated with the containing cavity; the outer cylinder (4) is movably sleeved on the outer side of the inner cylinder (1), and the lower end of the outer cylinder (4) is arranged in an open mode; the upper end of the outer cylinder (4) is connected with the loop bar (6), the loop bar (6) is sleeved on the outer side of the rotating shaft (5), and the loop bar (6) moves along the length direction of the rotating shaft (5) to pull the outer cylinder (4) to shield or open the overflow hole (2).

2. A sampling device for concrete sand according to claim 1, characterized in that the inner cylinder (1) comprises a cylinder bottom and a cylinder cover (3), the cylinder cover (3) being of conical construction; the cylinder cover (3) extends out of the open end of the outer cylinder (4).

3. The sampling device for concrete sand according to claim 2, characterized in that a plurality of overflow holes (2) are formed in the circumferential direction of the inner cylinder (1), and the plurality of overflow holes (2) are uniformly distributed on the side plate of the inner cylinder (1).

4. The sampling device for concrete sand according to claim 1, further comprising a fixed handle (11) and an adjusting handle (10), said fixed handle (11) being rotatably connected to said rotary shaft (5); the adjusting handle (10) is rotatably connected to the upper end of the loop bar (6), and the adjusting handle (10) is positioned below the fixed handle (11).

5. The sampling device for concrete sand according to claim 4, characterized in that the upper end of the loop bar (6) is connected with an adjusting box (7); the rotary shaft (5) penetrates through the adjusting box (7), an adjusting rod (9) is vertically connected to the rotary shaft (5), and a reset spring (8) is arranged between the adjusting rod (9) and the bottom of the adjusting box (7).

6. A sampling device for concrete sand according to claim 5, characterized in that the adjustment handle (10) is connected to the outside of the adjustment box (7).

7. The sampling device for concrete sand according to claim 5, characterized in that a guide groove is provided on the side wall of the adjusting box (7), the guide groove being consistent with the length direction of the rotating shaft (5); the adjusting rod (9) is positioned in the guide groove and is in sliding connection with the guide groove.

8. A sampling device for concrete sand according to claim 1, characterized in that the upper part of the outer cylinder (4) is of conical construction.