Device for sampling powder in the production of concrete

Abstract

The application belongs to the technical field of production auxiliary tools, in particular to a powder sampling device based on concrete production, which comprises a fixed plate, the lower surface of the fixed plate is fixedly connected with a support frame, the inside of the support frame is slidably connected with a moving block, the lower surface of the moving block is fixedly connected with an electric cylinder, the movable end of the electric cylinder is fixedly connected with a moving rod, the surface of the moving rod is slidably connected with a sampling shell, the upper surface of the sampling shell is fixedly connected with the lower surface of the support frame, the surface of the moving rod is symmetrically rotatably connected with connecting rods, the other ends of the connecting rods are rotatably connected with baffles, the caked powder can be extruded, so that the caked material is broken, the caked powder is prevented from blocking the sampling shell, the subsequent powder falling is reduced, the powder collection amount is reduced, and the sampling efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of production auxiliary tools, and particularly relates to a powder sampling device in concrete production. BACKGROUND

[0002] As an important component of concrete, the quality of the powder directly affects the strength and durability of the concrete, and sampling and detecting the powder through the sampling device can help understand the strength, fineness, water demand, water content and other key performance indicators of the powder, so as to determine whether the powder meets the production requirements.

[0003] A patent application with the publication number CN114441234B discloses a powder sampling device in concrete production, which comprises a bearing support, a bearing assembly structure arranged on the side of the bearing support, an installation shaft seat arranged on the bottom of the bearing support, a transmission connecting shaft rotatably arranged in the installation shaft seat, a collection connecting column arranged at the end of the transmission connecting shaft, and a collection bottom column arranged at the end of the collection connecting column.

[0004] When the sampling device is used to collect and sample powder with different mixing depths, the sampling rod is extended into the powder, the sidewall of the sampling rod is then driven to open the opening, the powder then falls into the sampling rod through the opening, and the sampling rod is taken out of the powder after sampling is completed.

[0005] In the prior art, if the environmental temperature is too high or too low or the humidity is high during the storage and transportation of the powder, the powder in the concrete may be caked. When the caked powder falls above the opening and causes the opening to be blocked, the speed of the powder flowing into the sampling rod is slow, so that it is difficult to collect an appropriate amount of powder within a certain time, and the sampling time is increased and the sampling efficiency is reduced.

[0006] Therefore, the application provides a powder sampling device in concrete production. SUMMARY

[0007] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0008] The technical scheme adopted by the present application to solve its technical problems is: the powder sampling equipment in concrete production based on the present application, including a fixed plate, the lower surface of the fixed plate is fixedly connected with a support frame, the inside of the support frame is slidably connected with a moving block, the lower surface of the moving block is fixedly connected with an electric cylinder, the movable end of the electric cylinder is fixedly connected with a moving rod, the surface of the moving rod is slidably connected with a sampling shell, the upper surface of the sampling shell and the lower surface of the support frame are fixedly connected, the surface of the moving rod is symmetrically rotatably connected with a connecting rod, the other end of the connecting rod is rotatably connected with a baffle, both the baffles are rotatably connected with the inner wall of the sampling shell, one end of the baffle is fixedly connected with a plurality of tooth blocks, a plurality of tooth grooves are formed in the two sides of the sampling shell, the tooth grooves and the tooth blocks are meshed with each other.

[0009] Preferably, the upper surface of the fixed plate is fixedly connected with a motor, the output end of the motor is fixedly connected with a reciprocating screw rod, one end of the reciprocating screw rod is threadedly connected with the inside of the moving block.

[0010] Preferably, one end of the moving rod is fixedly connected with a first threaded sleeve, the inside of the moving rod is provided with an internal thread, the upper surface of the sampling shell is fixedly connected with a second threaded sleeve, the lower surface of the sampling shell is fixedly connected with a fixed sleeve, the inner wall of the second threaded sleeve and the fixed sleeve can be threadedly connected.

[0011] Preferably, the inner wall of the sampling shell is fixedly connected with a crushing frame on both sides, the inside of the crushing frame is slidably connected with a moving plate, one end of the moving plate is rotatably connected with a plurality of rotating shafts, the inside of the rotating shaft is fixedly connected with a rotating rod, the inside of one end of the rotating rod is slidably connected with a tapered head.

[0012] Preferably, the back surface of the moving plate is fixedly connected with an extrusion rod, the extrusion rod is slidably connected with the side wall of the crushing frame, the back surface of the moving plate and one side of the crushing frame are fixedly connected with a first spring, one end of the extrusion rod is slidably connected with a first protrusion, the first protrusion is fixedly connected with the inner wall of the sampling shell, the cross-sectional shape of the first protrusion is isosceles trapezoidal.

[0013] Preferably, a plurality of spiral grooves are formed in the surface of the rotating rod, the inside of the spiral grooves is slidably connected with a limiting rod, one end of the limiting rod is fixedly connected with a limiting block, the limiting block is fixedly connected with one side of a limiting frame.

[0014] Preferably, one end of the tapered head is fixedly connected with a connecting rod, one end of the connecting rod is symmetrically rotatably connected with a pawl, one side of the pawl and the surface of the connecting rod are fixedly connected with a second spring.

[0015] Preferably, the inner wall of the rotating rod is rotationally connected with a rotating plate, one side of the rotating plate is provided with a ratchet gear, the ratchet gear and the pawl are one-way meshed, and the third spring is fixedly connected between one end of the rotating plate and the inner wall of the rotating rod.

[0016] Preferably, the inner side of the rotating rod is provided with a fixed rod, the fixed rod is fixedly connected with one side of the moving plate, the one end of the fixed rod is fixedly connected with a second protruding block, one side of the rotating plate is fixedly connected with a plurality of moving wheels, and the one side of the moving wheel is in abutment with the one end of the fixed rod.

[0017] Preferably, the second protruding block is a right trapezoid in cross section.

[0018] The beneficial effects of the present application are as follows:

[0019] 1. The powder sampling equipment in the production of concrete disclosed by the present application is provided with a tooth groove and a tooth block, when the sampling shell samples the powder, and the powder is blocked due to storage, the baffle is opened, the blocked powder may be blocked above the baffle, at this time, the electric cylinder drives the moving rod to move downward, when the moving block drives the moving rod to move upward, the baffle is not received in the inner wall of the sampling shell, at the same time, the baffle drives the tooth block and the tooth groove on the side wall of the sampling shell to cooperate, the blocked powder can be extruded, so that the blocked material is broken, and the subsequent powder can fall in the sampling shell through the baffle, so that the blocked powder does not block the sampling shell, the amount of powder collected is reduced, and the problem of low sampling efficiency is solved.

[0020] 2. The powder sampling equipment in the production of concrete disclosed by the present application is provided with a taper head and an extruding rod, the baffle drives the connecting rod to reciprocate through the moving rod, when the blocked powder falls into the baffle, is clamped on the inner wall of the baffle, and causes the subsequent powder to fall, the baffle drives the crushing frame to move synchronously, the extruding rod in the crushing frame slides on the surface of the first protruding block in the inner wall of the sampling shell, so that the subsequent extruding rod drives the moving plate to move, the moving plate drives the taper head to move, the taper head moves and breaks the blocked powder clamped in the baffle, so that the problems of incomplete sampling or prolonged sampling time caused by the blocked material blocking the baffle are solved.

[0021] 3. The powder sampling device based on concrete production according to the present application, the present application is provided with the rotating rod, when the cone head is broken to the agglomerated material following the movement plate, at this time, the spiral groove is matched through the limiting rod, so that the rotating rod drives the cone head to rotate synchronously, the cone head can rotate and advance, through the double crushing effect of extrusion and rotation, the agglomerated powder with high hardness can be processed, at the same time, the rotating cone head can drive the surrounding powder to flow, reduce the accumulation of powder near the baffle, when the cone head is broken, the cone head rotates and drives the rotating plate to rotate, the rotating plate drives the moving wheel to rotate on the second protrusion, so that the rotating plate drives the cone head at one end of the connecting rod to rotate and vibrate, at this time, the powder attached to the surface of the cone head can be shaken off, avoiding the formation of the material layer on the surface of the cone head, thereby hindering the transmission of the crushing force, reducing the crushing efficiency, causing the incomplete crushing of the material and continuing to block the inside of the baffle, thereby causing the slow feeding and the problem of the decreased sampling efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0022] The present application will be further described below in combination with the drawings.

[0023] Figure 1 is the overall structure schematic diagram of the present application;

[0024] Figure 2 is the structure schematic diagram of the fixed plate and the sampling shell of the present application;

[0025] Figure 3 is the inner wall structure sectional view of the sampling shell of the present application;

[0026] Figure 4 is the structure schematic diagram of the baffle of the present application;

[0027] Figure 5 is the structure schematic diagram of the moving rod of the present application;

[0028] Figure 6 is the structure schematic diagram of the crushing frame of the present application;

[0029] Figure 7 is the structure schematic diagram of the rotating rod of the present application;

[0030] Figure 8 is the structure sectional view of the rotating rod of the present application;

[0031] Figure 9 is the structure schematic diagram of the connecting rod and the rotating plate of the present application;

[0032] Figure 10 is the structure schematic diagram of the rotating plate and the fixed rod of the present application;

[0033] Figure 11 is the structure schematic diagram of the limiting block of the present application;

[0034] In the diagram: 1. Fixed plate; 11. Motor; 12. Support frame; 13. Moving block; 14. Reciprocating screw; 15. Electric cylinder; 2. Sampling shell; 21. Moving rod; 211. First threaded sleeve; 212. Internal thread; 213. Connecting rod; 22. Second threaded sleeve; 23. Baffle; 231. Tooth block; 24. Crusher; 241. Extrusion rod; 242. First spring; 243. Moving plate; 25. Fixed sleeve; 26. First protrusion; 27. Tooth groove; 3. Rotating shaft; 31. Rotating rod; 32. Spiral groove; 33. Cone; 331. Connecting rod; 332. Pawl; 333. Second spring; 34. Limiting block; 341. Limiting rod; 35. Third spring; 36. Rotating plate; 361. Racket gear; 362. Moving wheel; 37. Fixed rod; 371. Second protrusion. Detailed Implementation

[0035] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments. Example

[0036] like Figures 1 to 3 As shown in the embodiment of the present invention, the powder sampling device for concrete production includes a fixed plate 1. A support frame 12 is fixedly connected to the lower surface of the fixed plate 1. A moving block 13 is slidably connected inside the support frame 12. An electric cylinder 15 is fixedly connected to the lower surface of the moving block 13. A moving rod 21 is fixedly connected to the movable end of the electric cylinder 15. A sampling shell 2 is slidably connected to the surface of the moving rod 21. The upper surface of the sampling shell 2 is fixedly connected to the lower surface of the support frame 12. A connecting rod 213 is symmetrically rotatably connected to the surface of the moving rod 21. A baffle 23 is rotatably connected to the other end of each connecting rod 213. Both baffles 23 are rotatably connected to the inner wall of the sampling shell 2. A plurality of toothed blocks 231 are fixedly connected to one end of each baffle 23. A plurality of toothed grooves 27 are provided on both sides of the sampling shell 2. The toothed grooves 27 and the toothed blocks 231 mesh with each other.

[0037] like Figure 2 As shown, a motor 11 is fixedly connected to the upper surface of the fixed plate 1, and a reciprocating lead screw 14 is fixedly connected to the output end of the motor 11. One end of the reciprocating lead screw 14 is connected to the internal thread of the moving block 13.

[0038] like Figure 3 and Figure 5 As shown, a first threaded sleeve 211 is fixedly connected to one end of the moving rod 21, and an internal thread 212 is provided inside the moving rod 21. A second threaded sleeve 22 is fixedly connected to the upper surface of the sampling shell 2, and a fixed sleeve 25 is fixedly connected to the lower surface of the sampling shell 2. The inner walls of the second threaded sleeve 22 and the fixed sleeve 25 can be connected by threads.

[0039] Specifically, the existing sampling device collects and samples the powder at different mixing depths by extending the sampling rod into the interior of the powder, then driving the side wall of the sampling rod to open the opening, then the powder falls into the interior of the sampling rod through the opening, and the sampling is completed by taking out the sampling rod from the powder.

[0040] In the use process of the above-mentioned prior art, if the environmental temperature is too high or too low, and the humidity is large during the storage and transportation of the powder, the powder in the concrete may be caked. When the caked powder falls above the opening and causes the opening to be blocked, the speed of the powder flowing into the interior of the sampling rod is slow, so that it is difficult to collect and sample the appropriate amount of powder within a certain time, thereby the sampling operation needs to be performed again, which increases the sampling time and reduces the sampling efficiency.

[0041] In order to solve the above-mentioned problems, the working principle of the first embodiment is as follows: when the user uses the device, first install a plurality of sampling shells 2, align the second threaded sleeve 22 of the lower sampling shell 2 with the interior of the fixed sleeve 25 of the upper sampling shell 2, and fix and install the plurality of sampling shells 2 by rotating, at the same time, align the first threaded sleeve 211 of the lower sampling shell 2 with the internal thread 212 in the interior of the moving rod 21, and fix the plurality of moving rods 21.

[0042] After installation, the fixed plate 1 is installed and fixed on the upper side of the storage device, and the plurality of sampling shells 2 are placed in the powder at different depths, then the motor 11 is driven, the motor 11 drives the reciprocating screw rod 14 to rotate, the reciprocating screw rod 14 drives the moving block 13 to reciprocate in the interior of the support frame 12, the moving block 13 drives the moving rod 21 at one end of the electric cylinder 15 to move downward, so that the plurality of moving rods 21 move downward synchronously, the moving rod 21 drives the connecting rod 213 to rotate synchronously, the connecting rod 213 pushes the baffle 23 to rotate on the inner wall of the sampling shell 2, so that the baffle 23 opens the outer wall of the sampling shell 2, at this time the powder can enter the inner wall of the sampling shell 2 through the baffle 23;

[0043] At the same time, the electric cylinder 15 can be driven to drive the moving rod 21 to move downward again, so that the opening range of the baffle 23 becomes larger, at this time when the moving block 13 resets, the distance of the moving rod 21 rising becomes smaller, therefore the baffle 23 reciprocates while reciprocating on the outer wall of the sampling shell 2, when the upper side of the baffle 23 is blocked by the caked powder, the baffle 23 drives the gear block 231 to rotate synchronously, the gear block 231 and the tooth groove 27 on the outer side of the sampling shell 2 cooperate to crush the caked material, so that the caked material can fall into the interior of the baffle 23 for collection and sampling after being crushed;

[0044] When the collection is completed, the electric cylinder 15 is reset, the motor 11 drives the reciprocating screw rod 14 to drive the moving block 13 to move to the highest position, at this time the baffle 23 is received into the inner wall of the sampling shell 2, then the sampling shell 2 is taken out, and each sampling shell 2 is disassembled, after disassembly, the moving rod 21 is pressed to open the baffle 23, and the powder in the sampling shell 2 is poured out.

[0045] The embodiment one can crush the caked powder, so that the caked material is broken, and the subsequent powder can fall into the sampling shell 2 through the baffle 23, avoiding the problem that the caked powder blocks the sampling shell 2, so that the subsequent powder falls less, resulting in the problem of reduced powder collection amount, thereby causing the problem of reduced sampling efficiency. Embodiment

[0046] As shown in Figure 4 and Figure 6 , the comparative embodiment one, wherein another embodiment of the present application is: the inner wall of the sampling shell 2 is fixedly connected with a crushing frame 24 on both sides, the inside of the crushing frame 24 is slidably connected with a moving plate 243, one end of the moving plate 243 is rotatably connected with a plurality of rotating shafts 3, the inside of the rotating shaft 3 is fixedly connected with a rotating rod 31, the inside of one end of the rotating rod 31 is slidably connected with a tapered head 33.

[0047] As shown in Figure 6 , the back of the moving plate 243 is fixedly connected with an extrusion rod 241, the extrusion rod 241 and the side wall of the crushing frame 24 are slidably connected, the back of the moving plate 243 and one side of the crushing frame 24 are fixedly connected with a first spring 242, one end of the extrusion rod 241 is slidably connected with a first protrusion 26, and the first protrusion 26 and the inner wall of the sampling shell 2 are fixedly connected.

[0048] Specifically, when the caked powder is crushed by the tooth block 231 and the tooth groove 27 in the embodiment one, the caked powder falls into the inside of the baffle 23, and part of the caked powder may be stuck on both sides of the baffle 23, when the above-mentioned situation occurs, the caked powder will gradually accumulate and reduce the gap between the baffle 23 and the inner wall of the sampling shell 2, so that the subsequent powder feeding efficiency is reduced, thereby causing the problem of incomplete sampling;

[0049] In order to solve the above problems, the working principle of the second embodiment is as follows: when the caked powder falls inside the baffle 23, the baffle 23 continues to swing back and forth, and the baffle 23 swings synchronously with the crushing frame 24 inside it, and the crushing frame 24 swings synchronously with the extrusion rod 241 inside it, and the extrusion rod 241 contacts the first protrusion 26, when the extrusion rod 241 slides from the inclined surface of the first protrusion 26 to the upper plane, the extrusion rod 241 extrudes the first spring 242 and drives the moving plate 243 to slide to the inner wall of the crushing frame 24, the moving plate 243 drives the plurality of tapered heads 33 to move to the outer wall of the crushing frame 24, so that each tapered head 33 moves close to the center, and the tapered head 33 crushes the caked powder stuck on both sides of the baffle 23, so that the powder can be crushed and fall into the inside of the sampling shell 2.

[0050] The second embodiment moves the tapered head 33 and crushes the caked powder stuck inside the baffle 23, avoiding the problem of incomplete sampling or prolonged sampling time caused by caked material blocking the inside of the baffle 23.

[0051] As shown in Figure 7 and Figure 11 , the surface of the rotating rod 31 is provided with a plurality of spiral grooves 32, the inside of the spiral groove 32 is slidably connected with a limiting rod 341, one end of the limiting rod 341 is fixedly connected with a limiting block 34, and the limiting block 34 is fixedly connected with one side of the limiting frame.

[0052] As shown in Figure 9 , one end of the tapered head 33 is fixedly connected with a connecting rod 331, one end of the connecting rod 331 is rotatably connected with a pawl 332, and one side of the pawl 332 is fixedly connected with a second spring 333 on the surface of the connecting rod 331.

[0053] As shown in Figure 9 , the inner wall of the rotating rod 31 is rotatably connected with a rotating plate 36, one side of the rotating plate 36 is provided with a ratchet gear 361, the ratchet gear 361 is in one-way engagement with the pawl 332, and one end of the rotating plate 36 is fixedly connected with the third spring 35 between the inner wall of the rotating rod 31.

[0054] As shown in Figure 10 , the inside of the rotating rod 31 is provided with a fixed rod 37, the fixed rod 37 is fixedly connected with one side of the moving plate 243, one end of the fixed rod 37 is fixedly connected with a second protrusion 371, one side of the rotating plate 36 is fixedly connected with a plurality of moving wheels 362, and one side of the moving wheel 362 is in close contact with one end of the fixed rod 37.

[0055] As shown in Figure 10 , the second protrusion 371 is a right trapezoid in cross section, and the first protrusion 26 is an isosceles trapezoid in cross section.

[0056] Specifically, after the cone head 33 crushes the powder, part of the powder may adhere to the surface of the cone head 33 to form a material accumulation layer. The material accumulation layer continuously adheres to the surface of the cone head 33, increasing the frictional resistance between the cone head 33 and the material, which reduces the crushing force of the cone head 33 on the material;

[0057] To solve the above problems, when the moving plate 243 moves, the moving plate 243 drives the rotating shaft 3 to move, the rotating shaft 3 drives the rotating rod 31 to rotate, the rotating rod 31 moves inside the limiting block 34, and the limiting block 34 extrudes the spiral groove 32 on the surface of the rotating rod 31, so that the rotating rod 31 rotates, and the rotating rod 31 drives the cone head 33 inside it to rotate synchronously, so that the cone head 33 can crush the caked powder by rotating while extruding and advancing, and the cone head 33 rotates while driving the connecting rod 331 to rotate, and the connecting rod 331 drives the pawl 332 to rotate inside the ratchet gear 361. Since the pawl 332 and the ratchet gear 361 are in one-way engagement, the ratchet gear 361 will not rotate synchronously with the connecting rod 331. When the crushing is completed, the rotating rod 31 drives the cone head 33 to reset the cone head 33. At this time, the cone head 33 drives the connecting rod 331 to rotate, the connecting rod 331 drives the ratchet to rotate, and the ratchet can be in one-way engagement with the ratchet gear 361 through the second spring 333. At this time, the ratchet gear 361 drives the rotating plate 36 to rotate, and the rotating plate 36 drives the moving wheel 362 to rotate on one end surface of the fixed rod 37. When the moving wheel 362 moves to the upper surface of the second protrusion 371, the moving plate 243 drives the ratchet gear 361 to extrude the connecting rod 331, the connecting rod 331 extrudes the third spring 35 and drives the cone head 33 to move towards the outer wall of the rotating rod 31, and then the above operation is continuously performed, so that the cone head 33 rotates when resetting and rotates to shake off the powder adhering to its surface;

[0058] The cone head 33 of the structure can rotate while advancing, and through the double crushing effects of extrusion and rotation, it can process caked powder with high hardness. Meanwhile, the rotating cone head 33 can drive the surrounding powder to flow, reduce the accumulation of powder near the baffle 23, and avoid the formation of a material accumulation layer on the surface of the cone head 33, thereby hindering the transmission of the crushing force, reducing the crushing efficiency, causing incomplete crushing of the material and continued clogging of the inside of the baffle 23, and thus causing slow feeding and reduced sampling efficiency

[0059] Working principle, when the user uses the device, first install multiple sampling shells 2, align the second threaded sleeve 22 of the lower sampling shell 2 with the inside of the fixed sleeve 25 of the upper sampling shell 2, and fix and install multiple sampling shells 2 by rotating, at the same time, align the first threaded sleeve 211 of the lower sampling shell 2 with the internal thread 212 inside the upper moving rod 21, and fix multiple moving rods 21;

[0060] After installation, the fixed plate 1 is installed and fixed above the material storage device, and a plurality of sampling shells 2 are placed inside the powder at different depths, then the motor 11 is driven, the motor 11 drives the reciprocating screw rod 14 to rotate, the reciprocating screw rod 14 drives the moving block 13 to reciprocate in the support frame 12, the moving block 13 drives the moving rod 21 at one end of the electric cylinder 15 to move downward, so that a plurality of moving rods 21 move downward synchronously, the moving rod 21 drives the connecting rod 213 to rotate synchronously, the connecting rod 213 pushes the baffle 23 to rotate on the inner wall of the sampling shell 2, so that the baffle 23 opens the outer wall of the sampling shell 2, at this time the powder can enter the inner wall of the sampling shell 2 through the baffle 23;

[0061] At the same time, the electric cylinder 15 can be driven to drive the moving rod 21 to move downward again, so that the opening degree of the baffle 23 becomes larger, and when the moving block 13 resets, the moving rod 21 drives the moving rod 21 to ascend by a smaller distance, so that the baffle 23 reciprocates while reciprocating on the outer wall of the sampling shell 2, when the upper part of the baffle 23 is blocked by the caked powder, the baffle 23 drives the tooth block 231 to rotate synchronously, the tooth block 231 and the tooth groove 27 on the outer side of the sampling shell 2 cooperate to crush the caked material, so that the caked material can fall into the inside of the baffle 23 after being crushed for collection and sampling;

[0062] When the collection is completed, the electric cylinder 15 resets, the motor 11 drives the reciprocating screw rod 14 to drive the moving block 13 to move to the highest position, at this time the baffle 23 is accommodated into the inner wall of the sampling shell 2, then the sampling shell 2 is taken out, and each sampling shell 2 is disassembled, after disassembly, the baffle 23 is opened by pressing the moving rod 21, and the powder in the sampling shell 2 can be poured out;

[0063] When the caked powder falls into the inside of the baffle 23, the baffle 23 continues to swing, the baffle 23 swings while driving the inside crushing frame 24 to swing synchronously, the crushing frame 24 drives the inside extrusion rod 241 to swing synchronously, the extrusion rod 241 contacts the first protrusion 26, when the extrusion rod 241 slides from the inclined surface of the first protrusion 26 to the upper surface, the extrusion rod 241 extrudes the first spring 242 and drives the moving plate 243 to slide to the inner wall of the crushing frame 24, the moving plate 243 drives a plurality of tapered heads 33 to move to the outer wall of the crushing frame 24, so that each tapered head 33 moves to the center, the tapered head 33 crushes the caked powder clamped on both sides of the baffle 23, so that the powder can be crushed and fall into the inside of the sampling shell 2;

[0064] When the moving plate 243 moves, the moving plate 243 drives the rotating shaft 3 to move, the rotating shaft 3 drives the rotating rod 31 to rotate, the rotating rod 31 moves inside the limiting block 34, the limiting block 34 extrudes the spiral groove 32 on the surface of the rotating rod 31, so that the rotating rod 31 rotates, the rotating rod 31 drives the conical head 33 inside it to rotate synchronously, so that the conical head 33 can rotate while advancing and extruding to crush the caked powder, while the conical head 33 rotates, the connecting rod 331 rotates, the connecting rod 331 drives the pawl 332 to move inside the ratchet gear 361, because the pawl 332 and the ratchet gear 361 are one-way meshing, therefore the ratchet gear 361 will not rotate synchronously with the connecting rod 331, when the crushing is completed, the rotating rod 31 drives the conical head 33 to reset the conical head 33, at this time the conical head 33 drives the connecting rod 331 to rotate, the connecting rod 331 drives the ratchet to rotate, the ratchet can be one-way meshed with the ratchet gear 361 through the second spring 333, at this time the ratchet gear 361 drives the rotating plate 36 to rotate, the rotating plate 36 drives the moving wheel 362 to rotate on one end surface of the fixed rod 37, when the moving wheel 362 moves to the upper surface of the second protrusion 371, the moving plate 243 drives the ratchet gear 361 to extrude the connecting rod 331, the connecting rod 331 extrudes the third spring 35 and drives the conical head 33 to move to the outer wall of the rotating rod 31, then the above operation is continued, so that the conical head 33 rotates when resetting and rotates to shake off the powder attached to its surface. The above shows and describes the basic principles, main features and advantages of the present application. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, the above embodiments and descriptions in the specification are only to illustrate the principles of the present application, without departing from the spirit and scope of the present application, the present application can have various changes and improvements, these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A sampling device for powders in the production of concrete, characterized in that: The utility model provides fixing plate (1), the lower surface of fixing plate (1) is fixedly connected with support frame (12), the inside sliding connection of support frame (12) has moving block (13), the lower surface of moving block (13) is fixedly connected with electric jar (15), the movable end of electric jar (15) is fixedly connected with moving rod (21), the surface sliding connection of moving rod (21) has sampling shell (2), the upper surface of sampling shell (2) and the lower surface of support frame (12) are fixedly connected, the surface symmetry rotation connection of moving rod (21) has connecting rod (213), the other end of connecting rod (213) is all rotationally connected with baffle (23), two the baffle (23) is rotationally connected in the inner wall of sampling shell (2), and one end of baffle (23) is fixedly connected with a plurality of toothed blocks (231), a plurality of toothed grooves (27) are set up in the both sides of sampling shell (2), and toothed groove (27) and toothed block (231) are engaged with each other, The inner wall both sides of sampling shell (2) are fixedly connected with crushing frame (24), the inside sliding connection of crushing frame (24) has moving plate (243), one end of moving plate (243) is rotationally connected with a plurality of shafts (3), the inside of shaft (3) is all fixedly connected with rotation rod (31), the inside of one end of rotation rod (31) is all slidingly connected with taper head (33), The back of moving plate (243) is fixedly connected with extrusion rod (241), and extrusion rod (241) and the lateral wall of crushing frame (24) are slidingly connected, and the back of moving plate (243) and one side of crushing frame (24) are fixedly connected with first spring (242), one end of extrusion rod (241) is slidingly connected with first lug (26), and the inner wall of sampling shell (2) is fixedly connected with first lug (26), and the cross section shape of first lug (26) is isosceles trapezoid, The surface of rotation rod (31) is provided with a plurality of spiral grooves (32), the inside of spiral groove (32) is all slidingly connected with limiting rod (341), one end of limiting rod (341) is fixedly connected with limiting block (34), and limiting block (34) is all fixedly connected with one side of limiting frame, One end of taper head (33) is fixedly connected with connecting rod (331), one end of connecting rod (331) is rotationally connected with ratchet pawl (332) symmetrically, and the surface of connecting rod (331) is fixedly connected with second spring (333) on one side of ratchet pawl (332); The inner wall of rotation rod (31) is rotationally connected with rotation plate (36), one side of rotation plate (36) is provided with ratchet wheel (361), ratchet wheel (361) and ratchet pawl (332) are engaged in one way, and third spring (35) is fixedly connected between one end of rotation plate (36) and the inner wall of rotation rod (31); The inner side of the rotating rod (31) is provided with a fixed rod (37), one side of the fixed rod (37) is fixedly connected with the moving plate (243), one end of the fixed rod (37) is fixedly connected with a second protrusion (371), one side of the rotating plate (36) is fixedly connected with a plurality of moving wheels (362), one side of the moving wheel (362) is attached to one end of the fixed rod (37).

2. A powder sampling device for use in the production of concrete according to claim 1, characterised in that: The upper surface of the fixed plate (1) is fixedly connected with a motor (11), the output end of the motor (11) is fixedly connected with a reciprocating screw rod (14), one end of the reciprocating screw rod (14) is threadedly connected with the inside of the moving block (13).

3. A powder sampling apparatus in concrete production based on claim 2, characterized in that: One end of the moving rod (21) is fixedly connected with a first threaded sleeve (211), the inside of the moving rod (21) is provided with an internal thread (212), the upper surface of the sampling shell (2) is fixedly connected with a second threaded sleeve (22), the lower surface of the sampling shell (2) is fixedly connected with a fixed sleeve (25), the inner walls of the second threaded sleeve (22) and the fixed sleeve (25) can be connected through threads.

4. A powder sampling apparatus in the production of concrete based on claim 3, characterized in that: The second protrusion (371) is a right trapezoid in cross section.

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