Powder sampling equipment in concrete production

Abstract

The utility model discloses powder sampling equipment in concrete production, which comprises a mixing tank, two rows of sampling mechanisms are symmetrically mounted on two side walls of the mixing tank, each row comprises three sampling mechanisms, a cover plate is mounted at the top end of the mixing tank, and a scraping mechanism is mounted at the bottom end of the cover plate. The sampling device has the beneficial effects that the electric telescopic rod is arranged between the sampling pipe in the sampling mechanism and the outer wall of the mixing tank, and the guide pipe for guiding the sampling pipe in a sliding manner is arranged on the mixing tank, so that the sampling pipe can conveniently enter and exit from the mixing tank according to actual use requirements in the sampling process; through the design, the influence of the sampling mechanism on the stirring and crushing process of concrete raw materials in the sampling process is avoided, the stirring and crushing efficiency of the concrete raw materials is ensured, and meanwhile, an electric air cylinder in the scraping mechanism is matched to drive a scraping ring to slide along the inner wall of the mixing tank; and the residual concrete raw materials adhered in the mixing tank can be fully scraped and cleaned.

Description

Technical Field

[0001] The utility model relates to the field of concrete production, and particularly relates to a powder sampling device in concrete production. Background Art

[0002] Concrete is a general term for composite materials configured by gel materials, aggregates and water in appropriate proportions and hardened after a certain period of time. It is the most widely used artificial civil engineering material in the world. Concrete has high hardness, wide raw materials and low cost, and is widely applicable to structures such as houses, roads, and military projects. In the processing of concrete, it is necessary to crush the mixed materials therein and then mix them together in a stirring form to form hard concrete. During production, it is necessary to sample the concrete to analyze whether the components are lacking.

[0003] A Chinese patent with the publication number of CN215262602 discloses a powder sampling device in concrete production, including a machine body shell. A motor is fixedly installed at the top of the machine body shell. A rotating shaft is rotatably connected to the bottom of the motor. One end of the rotating shaft close to the inside of the machine body shell is fixedly connected with a crushing column. An expansion link is elastically connected to the periphery of the rotating shaft. One end of the expansion link far from the rotating shaft is fixedly connected with a first magnetic pole.

[0004] Although the powder sampling device in concrete production described in the above patent can sample and analyze the concrete powder at different heights inside the machine body shell during use, in the powder sampling device in concrete production of the above mechanism, the sampling mechanism is always located inside the machine body shell, which is likely to cause the mixing and crushing efficiency of the concrete production raw materials to be relatively low due to the obstruction of the sampling mechanism during the mixing and crushing process of the concrete raw materials. At the same time, since the vertical movement distance of the cleaning ring in the powder sampling device in concrete production of the above mechanism is only the height distance of the force-bearing block, the cleaning ring cannot scrape and clean the residual concrete materials on the inner wall of the machine body shell sufficiently during actual use. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a powder sampling device in concrete production that can not only flexibly move the sampling mechanism in and out of the mixing tank according to actual sampling needs to avoid affecting the mixing and crushing process of concrete raw materials during sampling, but also scrape the adhered and residual concrete raw materials in the mixing tank sufficiently after mixing and crushing.

[0006] The present utility model is realized through the following technical solutions: The present utility model provides a powder sampling device in concrete production, including a mixing tank. On both side walls of the mixing tank, two rows of sampling mechanisms are symmetrically installed, with three in each row. A cover plate is installed at the top end of the mixing tank, and a scraping mechanism is installed at the bottom end of the cover plate. Among them, the sampling mechanism includes a guiding pipe welded and penetrating through the side wall of the mixing tank, a sampling pipe installed in the guiding pipe, guiding sliding strips installed on both outer sides of the sampling pipe, a spiral sampling shaft installed in the middle of the sampling pipe, a handwheel installed at the power input end of the spiral sampling shaft, a linkage block welded on the upper side of the sampling pipe near one end of the handwheel, an electric telescopic rod installed on the side wall of the mixing tank opposite to the linkage block, and a mounting platform installed on the mixing tank at the position connected to the electric telescopic rod. The scraping mechanism includes electric cylinders symmetrically installed on both sides of the upper end of the cover plate and a scraping ring installed at the telescopic part of the electric cylinders.

[0007] By adopting the above technical solutions, during sampling, first, the electric telescopic rod is used to extend the sampling pipe into the mixing tank along the guiding pipe. At this time, the end of the spiral sampling shaft extends into the concrete raw materials. Then, only by rotating the handwheel to make the spiral sampling shaft rotate, the concrete raw materials after being stirred and crushed by the concrete can be discharged through the sampling pipe while the spiral sampling shaft rotates, so as to realize the sampling of the concrete raw materials. When not sampling, under the action of the electric telescopic rod, the sampling pipe can be extended out of the mixing tank to avoid the obstruction of the sampling pipe to the concrete raw materials during the stirring and crushing process, and ensure the stirring and crushing efficiency of the concrete raw materials. When the concrete raw materials are discharging, the electric cylinders in the scraping mechanism can be used to move the scraping ring down along the inner wall of the mixing tank, so as to realize the full scraping and cleaning of the concrete raw materials adhered to the inner wall of the mixing tank.

[0008] Furthermore, a motor is also fixed to the middle of the upper end of the cover plate by bolts, and the power output shaft of the motor is connected to a stirring and crushing frame through a coupling.

[0009] By adopting the above technical solutions, the motor drives the stirring and crushing frame to rotate, which can realize the full crushing and mixing of the concrete raw materials in the mixing tank.

[0010] Furthermore, a feeding hopper is welded on one side of the upper end of the cover plate. The feeding hopper penetrates through the cover plate and is communicated with the inside of the mixing tank.

[0011] By adopting the above technical solutions, the concrete raw materials can be conveniently put into the mixing tank through the feeding hopper.

[0012] Furthermore, a discharge pipe with a built-in valve is welded to the middle of the bottom end of the mixing tank, and three legs are welded in a ring around the discharge pipe at the bottom end of the mixing tank.

[0013] By adopting the above technical solution, the convenient discharge of the concrete raw materials after mixing and crushing can be realized through the discharge pipe.

[0014] Furthermore, the guiding slide bar is welded to the sampling pipe. The sampling pipe is of a bent structure. Both the guiding slide bar and the sampling pipe are slidably connected to the guiding pipe.

[0015] By adopting the above technical solution, the convenient sliding of the sampling pipe relative to the guiding pipe can be ensured.

[0016] Furthermore, the spiral sampling shaft is rotatably connected to the sampling pipe, and the hand wheel is bolted to the spiral sampling shaft.

[0017] By adopting the above technical solution, rotating the hand wheel can realize the convenient rotation of the spiral sampling shaft, so as to conveniently sample the concrete raw materials after stirring and crushing.

[0018] Furthermore, the fixed part of the electric telescopic rod is bolted to the installation table, and the telescopic part of the electric telescopic rod is bolted to the linkage block.

[0019] By adopting the above technical solution, the electric telescopic rod mainly controls the entry and exit of the sampling pipe into the mixing tank.

[0020] Furthermore, the fixed part of the electric cylinder is bolted to the cover plate, and the telescopic part of the electric cylinder penetrates through the cover plate and is bolted to the scraping ring.

[0021] By adopting the above technical solution, the electric cylinder can provide power for the up and down movement of the scraping ring.

[0022] The present utility model has the following beneficial effects compared with the prior art:

[0023] In the present utility model, an electric telescopic rod is installed between the sampling pipe in the sampling mechanism and the outer wall of the mixing tank, and a guiding pipe for sliding guidance of the sampling pipe is installed on the mixing tank, so that the sampling pipe can conveniently enter and exit the mixing tank according to actual usage needs during the sampling process. Such a design avoids the influence of the sampling mechanism on the stirring and crushing process of the concrete raw materials, ensures the stirring and crushing efficiency of the concrete raw materials, and at the same time, cooperates with the electric cylinder in the scraping mechanism to drive the scraping ring to slide along the inner wall of the mixing tank, so as to fully scrape and clean the adhered and residual concrete raw materials in the mixing tank. Description of the Drawings

[0024] Figure 1 is a schematic diagram of the mechanism of a powder sampling device in concrete production according to the present utility model;

[0025] Figure 2 is the main sectional view of a powder sampling device in concrete production according to the present utility model;

[0026] Figure 3 is a schematic diagram of the mechanism of a sampling tube, a spiral sampling shaft, a guiding slide bar and a hand wheel in a sampling mechanism of a powder sampling device in concrete production according to the present utility model;

[0027] Figure 4 is the left sectional view of a guiding tube and a sampling tube in a powder sampling device in concrete production according to the present utility model;

[0028] Figure 5 is a schematic diagram of the mechanism of a scraping ring in a powder sampling device in concrete production according to the present utility model.

[0029] The description of the reference numerals is as follows:

[0030] 1, cover plate; 2, mixing tank; 3, sampling mechanism; 301, electric telescopic rod; 302, linkage block; 303, hand wheel; 304, sampling tube; 305, mounting table; 306, guiding tube; 307, guiding slide bar; 308, spiral sampling shaft; 4, support leg; 5, discharge pipe; 6, feeding hopper; 7, motor; 8, scraping mechanism; 801, electric cylinder; 802, scraping ring; 9, stirring and crushing frame. Detailed implementation manners

[0031] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model, and are not used to limit the present utility model.

[0032] Such as Figures 1-3As shown in the figure, a powder sampling device in concrete production in this embodiment includes a mixing tank 2. On both side walls of the mixing tank 2, two rows of sampling mechanisms 3 are symmetrically installed, with three in each row. A cover plate 1 is installed at the top of the mixing tank 2, and the cover plate 1 can achieve reliable closing of the top of the mixing tank 2. A scraping mechanism 8 is installed at the bottom end of the cover plate 1. Among them, the sampling mechanism 3 includes a guiding pipe 306 welded and penetrating through the side wall of the mixing tank 2, a sampling pipe 304 installed in the guiding pipe 306, guiding slide bars 307 installed on both outer sides of the sampling pipe 304, a spiral sampling shaft 308 installed in the middle of the sampling pipe 304, a handwheel 303 installed at the power input end of the spiral sampling shaft 308, a linkage block 302 welded on the outer upper side of the sampling pipe 304 near one end of the handwheel 303, an electric telescopic rod 301 installed on the side wall of the mixing tank 2 opposite to the linkage block 302, and a mounting platform 305 installed on the mixing tank 2 at the part connected to the electric telescopic rod 301. The scraping mechanism 8 includes electric cylinders 801 symmetrically installed on both sides of the upper end of the cover plate 1 and a scraping ring 802 installed at the telescopic part of the electric cylinders 801.

[0033] Among them, during sampling, first, the sampling pipe 304 is extended into the mixing tank 2 along the guiding pipe 306 by means of the electric telescopic rod 301. At this time, the end of the spiral sampling shaft 308 extends into the concrete raw materials. Then, only by rotating the handwheel 303 to make the spiral sampling shaft 308 rotate, the concrete raw materials after being stirred and crushed by the concrete can be discharged through the sampling pipe 304 while the spiral sampling shaft 308 rotates, so as to realize sampling of the concrete raw materials. When not sampling, under the action of the electric telescopic rod 301, the sampling pipe 304 can be extended out of the mixing tank 2 to avoid the obstruction of the sampling pipe 304 to the stirring and crushing of the concrete raw materials and ensure the stirring and crushing efficiency of the concrete raw materials. When the concrete raw materials are being discharged, the electric cylinders 801 in the scraping mechanism 8 can be used to move the scraping ring 802 down along the inner wall of the mixing tank 2, so as to realize the full scraping and cleaning of the concrete raw materials adhering to the inner wall of the mixing tank 2.

[0034] As Figure 2 shown in the figure, in this embodiment, a motor 7 is also fixed in the middle of the upper end of the cover plate 1 by bolts. The power output shaft of the motor 7 is connected to a stirring and crushing frame 9 through a coupling. Driving the stirring and crushing frame 9 to rotate by the motor 7 can realize the full crushing and mixing of the concrete raw materials in the mixing tank 2.

[0035] As Figure 1 shown in the figure, in this embodiment, a feeding hopper 6 is also welded on one side of the upper end of the cover plate 1. The feeding hopper 6 penetrates through the cover plate 1 and is communicated with the inside of the mixing tank 2. Through the feeding hopper 6, the concrete raw materials can be conveniently put into the mixing tank 2.

[0036] As Figures 1-2As shown, in this embodiment, a discharge pipe 5 with a built-in valve is also welded to the middle of the bottom end of the mixing tank 2. Three legs 4 are welded in a ring shape around the discharge pipe 5 at the bottom end of the mixing tank 2. Through the discharge pipe 5, the conveniently discharged of the concrete raw materials after mixing and crushing can be realized.

[0037] As Figures 2-4 shown, in this embodiment, the guiding slide bar 307 is welded to the sampling pipe 304. The sampling pipe 304 is of a bent structure. Both the guiding slide bar 307 and the sampling pipe 304 are slidably connected to the guiding pipe 306, which can ensure the convenient sliding of the sampling pipe 304 relative to the guiding pipe 306.

[0038] As Figures 2-4 shown, in this embodiment, the spiral sampling shaft 308 is rotatably connected to the sampling pipe 304. The hand wheel 303 is bolted to the spiral sampling shaft 308. Rotating the hand wheel 303 can realize the convenient rotation of the spiral sampling shaft 308, so as to conveniently sample the concrete raw materials after stirring and crushing. The fixed part of the electric telescopic rod 301 is bolted to the mounting table 305, and the telescopic part of the electric telescopic rod 301 is bolted to the linkage block 302. The electric telescopic rod 301 mainly controls the entry and exit of the sampling pipe 304 into the mixing tank 2.

[0039] As Figure 2 and Figure 5 shown, in this embodiment, the fixed part of the electric cylinder 801 is bolted to the cover plate 1. The telescopic part of the electric cylinder 801 penetrates through the cover plate 1 and is bolted to the scraping ring 802. The electric cylinder 801 can provide power for the up and down movement of the scraping ring 802.

[0040] The specific implementation process of this embodiment is as follows: Before sampling, first add the concrete raw materials to be mixed into the mixing tank 2 through the feeding hopper 6, and make the motor 7 drive the stirring and crushing frame 9 to rotate to crush and stir the concrete raw materials. When sampling the concrete raw materials during the crushing and stirring process, first extend the sampling pipe 304 into the mixing tank 2 along the guiding pipe 306 by means of the electric telescopic rod 301. At this time, the end of the spiral sampling shaft 308 extends into the concrete raw materials. Then, just rotate the hand wheel 303 to make the spiral sampling shaft 308 rotate, and the concrete raw materials after stirring and crushing can be discharged through the sampling pipe 304 while the spiral sampling shaft 308 rotates, so as to realize the sampling of the concrete raw materials. When not sampling, under the action of the electric telescopic rod 301, the sampling pipe 304 can be extended out of the mixing tank 2 to avoid the obstruction of the sampling pipe 304 to the concrete raw materials during the stirring and crushing process, and ensure the stirring and crushing efficiency of the concrete raw materials. When discharging the concrete raw materials, the electric cylinder 801 in the scraping mechanism 8 can be used to make the scraping ring 802 move down along the inner wall of the mixing tank 2, so as to realize the full scraping and cleaning of the concrete raw materials adhered to the inner wall of the mixing tank 2.

[0041] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A powder sampling device in concrete production, characterized in that: The invention comprises a mixing tank (2), wherein two rows of sampling mechanisms (3) are symmetrically mounted on the two side walls of the mixing tank (2), with three sampling mechanisms in each row; a cover plate (1) is mounted on the top of the mixing tank (2), and a scraping mechanism (8) is mounted on the bottom of the cover plate (1); wherein the sampling mechanism (3) comprises a guide tube (306) welded and passing through the side wall of the mixing tank (2), a sampling tube (304) mounted in the guide tube (306), guide slide bars (307) mounted on both sides of the sampling tube (304), a spiral sampling shaft (308) mounted in the middle of the sampling tube (304), and a guide roller (309) mounted on the guide roller (308). A hand wheel (303) at the power input end of the sampling shaft (308), a linkage block (302) welded to the upper outer side of the sampling tube (304) near one end of the hand wheel (303), an electric telescopic rod (301) mounted on the linkage block (302) on the side wall of the mixing tank (2) and a mounting table (305) mounted on the mixing tank (2) at a portion connected to the electric telescopic rod (301), the scraping mechanism (8) comprising an electric cylinder (801) symmetrically mounted on both sides of the upper end of the cover plate (1) and a scraping ring (802) mounted on the telescopic portion of the electric cylinder (801).

2. The powder sampling device in concrete production according to claim 1, characterized in that: A motor (7) is also fixed to the middle of the upper end of the cover plate (1) by means of bolts, and a power output shaft of the motor (7) is connected to a stirring and crushing frame (9) via a coupling.

3. The powder sampling device in concrete production according to claim 2, characterized in that: A feeding hopper (6) is welded to the upper end of the cover plate (1) located on one side of the motor (7); the feeding hopper (6) penetrates the cover plate (1) and is in communication with the interior of the mixing tank (2).

4. The powder sampling device in concrete production according to claim 1, characterized in that: A discharge pipe (5) with a valve is welded to the middle of the bottom end of the mixing tank (2), and three legs (4) are welded in a ring shape at the bottom end of the mixing tank (2) and located outside the discharge pipe (5).

5. The powder sampling device in concrete production according to claim 1, characterized in that: The guide slide bar (307) is welded to the sampling tube (304); the sampling tube (304) is a bent structure; the guide slide bar (307) and the sampling tube (304) are both slidably connected to the guide tube (306).

6. The powder sampling device in concrete production according to claim 1, characterized in that: The spiral sampling shaft (308) is rotatably connected to the sampling tube (304), and the hand wheel (303) is bolted to the spiral sampling shaft (308).

7. The powder sampling device in concrete production according to claim 1, characterized in that: The fixing portion of the electric telescopic rod (301) is bolted to the mounting platform (305), and the telescopic portion of the electric telescopic rod (301) is bolted to the linkage block (302).

8. The powder sampling device in concrete production according to claim 1, characterized in that: The fixed portion of the electric cylinder (801) is bolted to the cover plate (1), and the telescopic portion of the electric cylinder (801) passes through the cover plate (1) and is bolted to the scraper ring (802).

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