A superfine powder sampling device in concrete production

Abstract

The invention relates to the technical field of concrete powder sampling, and specifically to an ultra-fine powder sampling device in concrete production, comprising a probe rod, a mounting frame fixedly connected to the top of the probe rod, an electric motor fixedly installed to the top of the probe rod, and a hand-held mechanism provided at the top of the mounting frame; a lifting groove is provided inside the probe rod, an extrusion block is slidably connected inside the lifting groove, a screw rod is rotatably connected to the probe rod, a plurality of round rods are fixedly connected inside the lifting groove, a plurality of the round rods are fixedly connected inside with springs, a plurality of the round rods are slidably connected inside with telescopic rods, a plurality of the side ends of the telescopic rods are fixedly connected with connecting blocks, and a plurality of the connecting blocks are provided with fixed grooves inside; the invention has the beneficial effects of: powders at different positions can be sampled at the same time, the sampling efficiency is high, it is beneficial to improve the rigor of the powder sample detection result, and the purpose of facilitating the cleaning of the sampling box is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of concrete powder sampling, in particular to ultrafine powder sampling equipment in concrete production. Background Art

[0002] Ordinary concrete refers to an artificial stone made by mixing cement as the main cementitious material with water, sand, gravel, and chemical admixtures and mineral admixtures when necessary, in appropriate proportions, and through uniform mixing, compaction molding, and curing and hardening. With the continuous development of the economy, my country's construction industry, especially super-high-rise buildings, has high performance requirements for concrete, such as ultra-high pumping performance, high strength and high performance, and self-compacting performance. It requires a large number of small tests and multiple pilot tests to design a concrete mix that meets the requirements. Powder sampling equipment refers to a sampling mechanism used for ultra-fine powder sampling to detect various values ​​of concrete and test samples during the concrete production process.

[0003] In the prior art, when sampling powder, the powder is generally extracted by a fan. The fan extraction method cannot achieve simultaneous sampling of powders of different depths, and multiple samplings are required. The sampling efficiency is low, and it is inconvenient to clean the fan and the inside of the extraction tube after the sampling work is completed. Summary of the invention

[0004] In view of the problems in the prior art, the present invention provides a superfine powder sampling device in concrete production.

[0005] The technical solution adopted by the present invention to solve the technical problem is: an ultra-fine powder sampling device in concrete production, comprising a probe rod, the top end of which is fixedly connected to a mounting frame, the top end of which is fixedly mounted with an electric motor, and the top end of which is provided with a hand-held mechanism;

[0006] A lifting groove is provided inside the probe rod, an extrusion block is slidably connected inside the lifting groove, a screw rod is rotatably connected to the probe rod, a plurality of round rods are fixedly connected inside the lifting groove, a plurality of round rods are fixedly connected inside with springs, a plurality of round rods are slidably connected inside with telescopic rods, a plurality of telescopic rods are fixedly connected to the side ends with connecting blocks, and a plurality of connecting blocks are provided with fixed grooves inside;

[0007] A plurality of equally spaced mounting grooves are provided on one side of the probe rod, a plurality of the mounting grooves are slidably connected to sampling boxes, a plurality of the side walls of the sampling boxes are provided with pressure wheels, a plurality of connecting grooves are provided at positions of the side walls of the sampling boxes corresponding to the connecting blocks, a plurality of the side walls of the sampling boxes are provided with accommodating grooves, a plurality of the sampling boxes are rotatably connected to rotating rods, a plurality of the rotating rods are fixedly connected to linkage seats at positions corresponding to the internal positions of the accommodating grooves, a plurality of the linkage seats are hinged with symmetrically arranged pull rods, a plurality of the sampling boxes are symmetrically arranged at positions corresponding to the internal positions of the accommodating grooves, a plurality of the accommodating grooves are slidably connected to symmetrically arranged fixing seats, and the fixing seats are fixedly connected to limiting blocks at positions corresponding to the limit grooves.

[0008] Specifically, the electric motor is located inside the mounting frame, and the output end of the electric motor is fixedly connected to the top end of the lead screw.

[0009] Specifically, the hand-held mechanism includes a vertical rod, a top end of the vertical rod is fixedly connected to a horizontal gripping plate, and the horizontal gripping plate is provided with symmetrically arranged gripping grooves.

[0010] Specifically, the vertical rod in the hand-held mechanism is fixedly connected to the middle position of the top end of the mounting frame.

[0011] Specifically, the specific shape of one side of the extrusion block is a triangular setting, the bottom end of the screw rod is rotatably connected to the bottom wall inside the lifting groove, and the screw rod is threadedly connected to the extrusion block at a position corresponding to the internal position of the lifting groove.

[0012] Specifically, the telescopic rods are fixedly connected to the springs at positions inside the corresponding round rods.

[0013] Specifically, the connecting blocks are connected to the inside of the connecting groove through the groove wall of the lifting groove, the pressure wheels are located inside the lifting groove through the groove wall of the installation groove, and the fixing seats are slidably connected to the inside of the fixing groove.

[0014] Specifically, the side end of the rotating rod is rotatably connected to the inside of the accommodating groove, the other side end of the rotating rod is fixedly connected to a rotating ring, the limit blocks are slidably connected to the inside of the limit grooves, the accommodating grooves are in a state of communication with the connecting grooves, and the limit grooves are in a state of communication with the accommodating grooves.

[0015] Beneficial effects of the present invention:

[0016] The present invention is provided with a plurality of sampling boxes which are arranged equidistantly, and each sampling box is at a different position during sampling. The sampling boxes can be sequentially protruded from the inside of the probe rod by lifting and lowering the extrusion block, so that powder materials at different depths can be sampled in sequence and in an orderly manner. After the sampling work is completed, each sampling box can be conveniently taken out from the inside of the probe rod, so as to facilitate taking out the powder samples from the inside of the sampling box. The present invention can sample powder materials at different positions at the same time, and has a high sampling efficiency, which is beneficial to improving the rigor of the powder sample detection results, and also achieves the purpose of facilitating the cleaning of the sampling boxes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 The front view provided by the present invention;

[0019] Figure 2 An overall cross-sectional view provided by the present invention;

[0020] Figure 3 A partial cross-sectional view provided by the present invention;

[0021] Figure 4 A specific structural diagram of the sampling box provided by the present invention;

[0022] Figure 5 A cross-sectional view of a sampling box provided by the present invention;

[0023] Figure 6 A diagram showing the separation of the sampling box and the internal structure provided by the present invention;

[0024] Figure 7 A cross-sectional view of a round rod provided by the present invention.

[0025] In the figure: 1. probe rod; 2. mounting frame; 3. electric motor; 4. hand-held mechanism; 41. vertical rod; 42. horizontal grip plate; 43. gripping groove; 5. lifting groove; 6. extrusion block; 7. screw rod; 8. round rod; 9. spring; 10. telescopic rod; 11. connecting block; 12. fixing groove; 13. mounting groove; 14. sampling box; 15. pressure wheel; 16. connecting groove; 17. containing groove; 18. rotating rod; 19. linkage seat; 20. pull rod; 21. limit groove; 22. fixing seat; 23. limit block; 24. rotating ring. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0027] like Figure 1-Figure 7As shown, the ultrafine powder sampling device in concrete production of the present invention comprises a probe rod 1, the top of the probe rod 1 is fixedly connected to a mounting frame 2, the top of the probe rod 1 is fixedly mounted with an electric motor 3, and the top of the mounting frame 2 is provided with a hand-held mechanism 4;

[0028] A lifting groove 5 is provided inside the probe rod 1, and an extrusion block 6 is slidably connected inside the lifting groove 5. A screw rod 7 is rotatably connected to the probe rod 1. A plurality of round rods 8 are fixedly connected inside the lifting groove 5, and a spring 9 is fixedly connected inside the plurality of round rods 8. A telescopic rod 10 is slidably connected inside the plurality of round rods 8. The side ends of the plurality of telescopic rods 10 are fixedly connected to connection blocks 11, and a fixing groove 12 is provided inside the plurality of connection blocks 11.

[0029] A plurality of equally spaced mounting grooves 13 are provided on one side of the probe rod 1, and a sampling box 14 is slidably connected inside the plurality of mounting grooves 13, and a pressure wheel 15 is provided on the side walls of the plurality of sampling boxes 14, and a connecting groove 16 is provided on the side walls of the plurality of sampling boxes 14 at positions corresponding to the connecting blocks 11, and a receiving groove 17 is provided on the side walls of the plurality of sampling boxes 14, and a rotating rod 18 is rotatably connected inside the plurality of sampling boxes 14, and a plurality of the rotating rods 18 are fixedly connected with a linkage seat 19 at positions corresponding to the internal positions of the receiving grooves 17, and a plurality of symmetrically arranged pull rods 20 are hinged on the linkage seats 19, and a plurality of symmetrically arranged limiting grooves 21 are provided on the plurality of sampling boxes 14 at positions corresponding to the internal positions of the receiving grooves 17, and a symmetrically arranged fixing seat 22 is slidably connected inside the plurality of the containing grooves 17, and a limiting block 23 is fixedly connected to the fixing seat 22 at positions corresponding to the limiting grooves 21.

[0030] Specifically, the electric motor 3 is located inside the mounting frame 2 , and the output end of the electric motor 3 is fixedly connected to the top end of the screw rod 7 , so that the electric motor 3 can drive the screw rod 7 to rotate.

[0031] Specifically, the hand-held mechanism 4 includes a vertical rod 41 , a top end of which is fixedly connected to a horizontal gripping plate 42 , and the horizontal gripping plate 42 is provided with symmetrically arranged gripping grooves 43 .

[0032] Specifically, the vertical rod 41 in the hand-held mechanism 4 is fixedly connected to the middle position of the top end of the mounting frame 2 .

[0033] Specifically, the specific shape of one side of the extrusion block 6 is a triangular setting, the bottom end of the screw rod 7 is rotatably connected to the bottom wall inside the lifting groove 5, and the screw rod 7 is threadedly connected to the extrusion block 6 at a position corresponding to the internal position of the lifting groove 5. The rotation of the screw rod 7 facilitates the extrusion block 6 to slide upward or downward inside the lifting groove 5.

[0034] Specifically, the telescopic rod 10 is fixedly connected to the spring 9 at the position corresponding to the inner part of the round rod 8, so that the spring 9 can be stretched easily when the telescopic rod 10 is moved outward.

[0035] Specifically, the connecting blocks 11 pass through the wall of the lifting groove 5 and are connected to the inside of the connecting groove 16 , the pressure wheels 15 pass through the wall of the installation groove 13 and are located inside the lifting groove 5 , and the fixing seats 22 are slidably connected to the inside of the fixing groove 12 .

[0036] Specifically, the side end of the rotating rod 18 is rotatably connected to the inside of the accommodating groove 17, and the other side end of the rotating rod 18 is fixedly connected to a rotating ring 24. The limit blocks 23 are slidably connected to the inside of the limit groove 21. The accommodating grooves 17 are in a state of communication with the connecting grooves 16, and the limit grooves 21 are in a state of communication with the accommodating grooves 17. The rotating ring 24 facilitates driving the rotating rod 18 to rotate.

[0037] When in use, the staff can grasp the grasping groove 43 with both hands, control the horizontal gripping plate 42 with the help of the grasping groove 43, and then insert the entire probe rod 1 into the concrete production powder storage container through the horizontal gripping plate 42 and the vertical rod 41. At this time, the multiple sampling boxes 14 arranged equidistantly are all located in the powder. At this time, the electric motor 3 can be started, and the slow rotation of the output end of the electric motor 3 will drive the screw rod 7 to rotate. The rotation of the screw rod 7 will drive the extrusion block 6 to slide downward inside the lifting groove 5. The extrusion block 6 slides downward and its triangular part will slowly squeeze the pressure wheel 15. The pressure wheel 15 is squeezed and moves in the direction of the installation groove 13. When the pressure wheel 15 moves, it will drive the sampling box 14 to move. The sampling box 14 slides outward inside the installation groove 13 and drives the connecting block 11 to move together through the fixing seat 22. The movement of the connecting block 11 will drive the telescopic rod 10 to protrude outward from the inside of the round rod 8, and the telescopic rod 10 moves to When the extrusion block 6 squeezes the pressure wheel 15 to the maximum extent, the sampling box 14 has been moved outward from the inside of the installation groove 13. At this time, the external powder will flow into the top sampling box 14. At this time, the extrusion block 6 continues to move downward to completely stagger the pressure wheel 15 at the top. At this time, the spring 9 loses its tension and drives the telescopic rod 10 to retract into the inside of the round rod 8. The retraction of the round rod 8 will drive the connecting block 11 to move together. The connecting block 11 will drive the sampling box 14 to reset to the inside of the installation groove 13 through the connection with the fixing seat 22. When the sampling box 14 is completely reset to the inside of the installation groove 13, the sampling box 14 at the top is sampled. At this time, the extrusion block 6 continues to move downward to squeeze the remaining sampling boxes 14 outward from the inside of the installation groove 13 in sequence, thereby completing the sampling work of each sampling box 14, and then the probe rod 1 can be removed from the powder.

[0038] At this time, insert the external screwdriver into the rotating ring 24, and then rotate the rotating ring 24. The rotation of the rotating ring 24 will drive the rotating rod 18 to rotate, and the rotation of the rotating rod 18 will drive the linkage seat 19 to rotate together. The rotation of the linkage seat 19 will pull the two pull rods 20. The two pull rods 20 will move toward the middle direction following the rotation of the linkage seat 19 when pulled. The movement of the two pull rods 20 will pull the fixed seat 22. At this time, the two fixed seats 22 will move toward the middle direction at the same time, and the fixed seats 22 will be in the storage The receiving groove 17 slides inside, and the fixed seat 22 will drive the limit block 23 to slide inside the limit groove 21. The movement of the limit block 23 can guide the movement of the fixed seat 22. The movement of the fixed seat 22 will be out of the fixed groove 12 on the connecting block 11. At this time, the fixed seat 22 is no longer connected to the connecting block 11, and the probe rod 1 can be vibrated to take out the sampling box 14 from the installation groove 13, so as to take out the powder inside the sampling box 14, and the sampling box 14 can also be cleaned. The other sampling boxes 14 are taken out in the same way.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. An ultrafine powder sampling device in concrete production, characterized by: It comprises a probe rod (1), the top end of the probe rod (1) is fixedly connected to a mounting frame (2), the top end of the probe rod (1) is fixedly mounted with an electric motor (3), and the top end of the mounting frame (2) is provided with a hand-held mechanism (4); The probe rod (1) has a lifting groove (5) formed inside, a squeezing block (6) is slidably connected inside the lifting groove (5), a screw rod (7) is rotatably connected to the probe rod (1), a plurality of round rods (8) are fixedly connected inside the lifting groove (5), a spring (9) is fixedly connected inside the plurality of round rods (8), a telescopic rod (10) is slidably connected inside the plurality of round rods (8), a connecting block (11) is fixedly connected to the side ends of the plurality of telescopic rods (10), and a fixing groove (12) is formed inside the plurality of connecting blocks (11); A plurality of installation grooves (13) arranged equidistantly are provided on one side of the probe rod (1), and a sampling box (14) is slidably connected inside each of the installation grooves (13). A pressure-bearing wheel (15) is provided on the side walls of each of the sampling boxes (14). A connection groove (16) is provided on the side walls of each of the sampling boxes (14) at a position corresponding to the connection block (11). A receiving groove (17) is provided on the side walls of each of the sampling boxes (14). A rotating rod (18) is rotatably connected inside each of the sampling boxes (14). A connecting seat (19) is fixedly connected to each of the rotating rods (18) at a position corresponding to the inside of the receiving groove (17). A symmetrically arranged pull rod (20) is hinged on each of the connecting seats (19). The sampling boxes (14) correspond to the receiving groove (17). A plurality of symmetrically arranged limiting grooves (21) are provided at internal positions, and a plurality of the containing grooves (17) are slidably connected inside with symmetrically arranged fixing seats (22), and the fixing seats (22) are fixedly connected to limiting blocks (23) at positions corresponding to the limiting grooves (21); The side end of the rotating rod (18) is rotatably connected to the inside of the accommodating groove (17), the other side end of the rotating rod (18) is fixedly connected to a rotating ring (24), the limiting blocks (23) are slidably connected to the inside of the limiting groove (21), the accommodating groove (17) is in a state of communication with the connecting groove (16), and the limiting groove (21) is in a state of communication with the accommodating groove (17).

2. The ultrafine powder sampling device in concrete production according to claim 1 is characterized by: The electric motor (3) is located inside the mounting frame (2), and the output end of the electric motor (3) is fixedly connected to the top end of the screw rod (7).

3. The ultrafine powder sampling device in concrete production according to claim 1 is characterized by: The hand-held mechanism (4) comprises a vertical rod (41), the top end of which is fixedly connected to a horizontal gripping plate (42), and the horizontal gripping plate (42) is provided with symmetrically arranged gripping grooves (43).

4. The ultrafine powder sampling device in concrete production according to claim 1 is characterized by: The vertical rod (41) in the hand-held mechanism (4) is fixedly connected to the middle position of the top end of the mounting frame (2).

5. The ultrafine powder sampling device in concrete production according to claim 1 is characterized by: The specific shape of one side of the extrusion block (6) is a triangular configuration, the bottom end of the screw rod (7) is rotatably connected to the inner bottom wall of the lifting groove (5), and the screw rod (7) is threadedly connected to the extrusion block (6) at a position corresponding to the inner position of the lifting groove (5).

6. The ultrafine powder sampling device in concrete production according to claim 1, characterized in that: The telescopic rod (10) is fixedly connected to the spring (9) at a position corresponding to the inner portion of the round rod (8).

7. The ultrafine powder sampling device in concrete production according to claim 1, characterized in that: The connecting blocks (11) pass through the groove wall of the lifting groove (5) and are connected to the inside of the connecting groove (16); the pressure wheels (15) pass through the groove wall of the installation groove (13) and are located inside the lifting groove (5); and the fixing seats (22) are slidably connected to the inside of the fixing groove (12).

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