Sampling device for blasting engineering

Abstract

The utility model relates to the technical field of sampling devices, in particular to a sampling device for blasting engineering. According to the specific technical scheme, the sampling device for blasting engineering comprises a motor and a sampling barrel connected with the motor, the bottom of the sampling barrel is open, a cavity is formed in the inner wall of the sampling barrel, a plurality of sample injection holes communicated with the cavity are formed in the outer wall of the sampling barrel, and the sampling barrel is provided with a plurality of sampling holes communicated with the cavity. A sample inlet communicated with the interior of the sampling barrel is formed in the outer wall of the sampling barrel, a fixing groove communicated with the cavity is formed in the bottom of the sampling barrel, a drill bit is in threaded connection with the interior of the fixing groove, and the drill bit is communicated with the interior of the sampling barrel. The utility model solves the problem that in the prior art, soil is not easy to take out from the sampling cylinder or is easy to leak out from the sampling cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling devices, and particularly relates to a sampling device for blasting engineering. Background Art

[0002] During blasting, it is often necessary to sample and detect the internal structure of the blasting site to determine the type of explosive to be used. However, currently during sampling, only soil is collected. The sampling cylinder is inserted into the soil layer so that the soil enters the sampling cylinder to achieve sampling. However, for relatively compacted soil, it is not easy to fall off from the sampling cylinder after entering the sampling cylinder. And for relatively loose soil, it is easy to leak out of the sampling cylinder under the action of gravity, resulting in insufficient sampling volume. To solve the above problems, the present invention provides a sampling device that can sample both compacted and loose soil. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the utility model provides a sampling device for blasting engineering, which solves the problems that soil is not easy to be taken out of the sampling cylinder or is easy to leak out of the sampling cylinder in the prior art.

[0004] To achieve the above object, the utility model is realized through the following technical solutions:

[0005] The utility model discloses a sampling device for blasting engineering, including a motor and a sampling cylinder connected to the motor. The bottom of the sampling cylinder is open. A cavity is arranged in the inner wall of the sampling cylinder. A plurality of sample inlet holes communicated with the cavity are arranged on the outer wall of the sampling cylinder. A sample inlet communicated with the inside of the sampling cylinder is arranged on the outer wall of the sampling cylinder. A fixing groove communicated with the cavity is arranged at the bottom of the sampling cylinder. A drill bit is threadedly connected in the fixing groove. The drill bit is communicated with the inside of the sampling cylinder.

[0006] Preferably, the drill bit is annular and is threadedly connected into the fixing groove. The inner end of the sampling cylinder extending into the drill bit abuts against the inner end face of the drill bit. Drill teeth are arranged at the bottom of the drill bit.

[0007] Preferably, a sampling sleeve for assisting the sample to fall off is arranged in the sampling cylinder. The bottom of the sampling sleeve is open and is detachably fixed to the inner top of the sampling cylinder. A pull rod is arranged on the sampling sleeve.

[0008] Preferably, a receiving groove is vertically and penetratingly arranged on the inner wall of the sampling cylinder. The pull rod is located in the receiving groove. One end of the pull rod extends out of the bottom opening of the sampling cylinder. An annular groove for the pull rod to extend into is arranged on the inner end face of the drill bit.

[0009] Preferably, a fixing bolt is fixed to the top of the sampling sleeve, and the fixing bolt extends out of the sampling tube and is fixed by a nut.

[0010] Preferably, the motor is fixed on a screw assembly, the screw assembly is fixed on a mounting plate, the mounting plate is rotatably arranged on a mounting frame, and the mounting frame is fixed on a cart.

[0011] Preferably, the screw assembly includes a screw fixed to a mounting plate via a bearing seat, a nut is adapted to be mounted on the screw, the motor is fixed to the nut, and a driving member is fixed to an end of the screw.

[0012] Preferably, the cross-section of the mounting plate is in a "匚" shape, the screw rod is vertically arranged along the length direction of the mounting plate, and both sides of the mounting plate are rotatably connected to the mounting frame through a rotating shaft.

[0013] Preferably, the surface of the mounting plate is provided with guide rails parallel to each other, the guide rails are parallel to the screw rod, the screw rod is arranged between the guide rails, a slide groove with a "⊥" cross-section is arranged on the guide rail along its length direction, and a slider adapted to the slide groove is arranged on the body of the motor corresponding to the guide rail.

[0014] Preferably, the sliding block includes a fixing rod fixed to the motor body, a bearing is fixed to the other end of the fixing rod, and the bearing is located in the sliding groove.

[0015] The utility model has the following beneficial effects:

[0016] The utility model provides a cavity in the sampling tube, and provides a sampling hole in communication with the cavity on the sampling tube, so that soil samples with small particle size and / or dry and loose soil can enter the cavity, thereby preventing the soil samples from leaking out. At the same time, a sampling port in communication with the interior of the sampling tube is provided, and the sampling port is larger than the sampling hole, so that the soil sample can enter through the sampling port. At the same time, when the sampling tube is inserted into the soil layer, the air in the sampling tube is discharged through the sampling port. A drill bit is threadedly fixed at the bottom of the sampling tube, and the drill bit has drill teeth, which is convenient for digging into the soil layer for smooth sampling. When the soil humidity is high, the soil sample can be taken out of the sampling tube by simply pulling the sampling sleeve in the sampling tube. The entire sampling process is simple and convenient to operate, and can be used to sample soil layers with different humidity and particle sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model (viewed from above, with the driving member omitted);

[0018] Figure 2 is a cross-sectional view of the sampling tube;

[0019] Figure 3 for Figure 2 Middle A is a partial enlarged view;

[0020] Figure 4 is Figure 2 the A-A direction view in the figure;

[0021] Figure 5 is a schematic structural diagram of the lead screw assembly arranged on the mounting plate;

[0022] Figure 6 is a schematic structural diagram of the drill bit;

[0023] Figure 7 is a schematic structural diagram of the mounting frame and the flatbed truck;

[0024] In the figure: motor 1, sampling cylinder 2, cavity 3, sampling hole 4, sampling port 5, drill bit 6, drill teeth 7, sampling sleeve 8, pull rod 9, annular groove 10, fixing bolt 11, nut 12, mounting plate 13, mounting frame 14, flatbed truck 15, bearing seat 16, lead screw 17, nut 18, driving part 19, guide rail 20, sliding groove 21, fixing rod 22, bearing 23. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0026] If not specifically specified, the technical means used in the implementation examples are conventional means well known to those skilled in the art.

[0027] Refer to Figures 1-7 , the present invention discloses a sampling device for blasting engineering, including a motor 1 and a sampling cylinder 2 connected to the motor 1. The bottom of the sampling cylinder 2 is open, and the output end of the motor is fixed to the top of the sampling cylinder. A cavity 3 is provided in the inner wall of the sampling cylinder 2. A plurality of sampling holes 4 communicating with the cavity 3 are provided on the outer wall of the sampling cylinder 2. A sampling port 5 communicating with the inside of the sampling cylinder 2 is provided on the outer wall of the sampling cylinder 2. A fixing groove communicating with the cavity 3 is provided at the bottom of the sampling cylinder 2. A drill bit 6 is threadedly connected in the fixing groove, and the drill bit 6 communicates with the inside of the sampling cylinder 2. It should be noted that: Refer to Figure 4As shown, it is preferred to set two cavities, and they are correspondingly arranged. The cavities are arranged in the inner wall of the sampling cylinder, and a sampling port is arranged on the side wall of the sampling cylinder between the cavities. The number of sampling ports and sampling holes can be set in multiple according to needs. The setting of the cavities and sampling holes can collect samples with smaller particle sizes. When the soil is dry and loose, it cannot stay in the sampling cylinder. After sampling, when the sampling cylinder is pulled out of the soil, the soil inside will leak out from the bottom port of the sampling cylinder, resulting in a reduction in the sampling volume or even non-compliance. Therefore, setting the cavities and sampling holes can collect soil samples with fine particle sizes. Even if the samples in the sampling cylinder are lost, the sampling result will not be affected due to the existence of the samples in the cavities.

[0028] As Figure 4 shown, the entire sampling cylinder is integrally formed, and the cavity is axially opened from the bottom of the sampling cylinder. As another implementation method, the sampling cylinder can be composed of two sleeves sleeved together. At least one support plate is inserted and fixed in the gap between the two sleeves. The gap beside the support plate or between the support plates is the cavity. Corresponding holes are arranged on the two sleeves and the support plate to form a sampling port, which communicates with the small-diameter sleeve. The specific setting method can be set according to actual needs.

[0029] Furthermore, the drill bit 6 is annular and is threadedly connected into the fixing groove. The inner end of the sampling cylinder 2 extending into the drill bit 6 abuts against the inner end surface of the drill bit 6. Drill teeth 7 are arranged at the bottom of the drill bit 6. It should be noted that the drill bit is annular and has openings at both ends, allowing the sample to enter the sampling cylinder through the drill bit. The drill teeth are conical, such as triangular prisms or triangular pyramids, which are convenient for the sampling cylinder to penetrate into the soil layer and enable the soil to enter the sampling cylinder through the drill bit. During the process of the sampling cylinder entering the soil, the fine-grained samples enter the cavity through the sampling holes, and the open end at the bottom of the cavity is closed by the drill bit, so that the collected samples can be well retained in the cavity. Threads are arranged on the inner wall of the drill bit, and the thickness of the drill bit is adapted to the thickness of the cavity, so that the drill bit can be inserted into the cavity and the fixing groove radially communicating with the cavity and be threadedly connected. That is, external threads adapted to the threads on the drill bit are arranged on the inner side wall of the cavity and the inner wall of the fixing groove. Of course, the setting positions of the threads on the drill bit and the threads on the fixing groove can be set according to the actual situation.

[0030] Further, when the soil has a relatively high moisture content, it is difficult to take out the sample that has entered the sampling cylinder. A sampling sleeve 8 for assisting the sample to fall off is provided inside the sampling cylinder 2. The bottom of the sampling sleeve 8 is open and is detachably fixed to the inner top of the sampling cylinder 2. The outer diameter of the sampling sleeve matches that of the sampling cylinder. A pull rod 9 is provided on the sampling sleeve 8. Preferably, two pull rods are provided and are correspondingly arranged. The pull rod facilitates pulling the sampling sleeve out of the sampling cylinder, and the soil inside is taken out accordingly. The pull rod can be a steel wire rope, a relatively thin rod, or a rope in some cases. Of course, setting it as a pull rod facilitates resetting the sampling sleeve.

[0031] Further, a receiving groove is vertically and penetratingly provided on the inner wall of the sampling cylinder 2. The pull rod 9 is located in the receiving groove to prevent the pull rod from adhering to too much soil. The end of the pull rod located inside the sampling cylinder is fixed to the outer side wall of the sampling sleeve. To facilitate operating the pull rod and pulling out the sampling sleeve through the pull rod, one end of the pull rod 9 extends out of the bottom opening of the sampling cylinder 2, and an annular groove 10 for the pull rod 9 to extend into is provided on the inner end surface of the drill bit 6, so that when the drill bit is fixed, the pull rod will not cause interference.

[0032] Further, a fixing bolt 11 is fixed to the top end of the sampling sleeve 8. The fixing bolt 11 extends out of the sampling cylinder 2 and is fixed by a nut 12 to achieve the detachable fixation of the sampling sleeve. When it is necessary to pull the sampling sleeve, only the nut needs to be unscrewed.

[0033] Further, the motor 1 is fixed on the lead screw assembly and is driven by the lead screw assembly to move, thereby realizing the lifting of the sampling cylinder, that is, the sampling cylinder is inserted into the soil and taken out from the soil. The lead screw assembly is fixed on the mounting plate 13, and the mounting plate 13 is rotatably arranged on the mounting frame 14, and the mounting frame 14 is fixed on the flatbed cart 15. The mounting plate can rotate relative to the mounting frame, and the sampling position and angle of the sampling cylinder can be manually adjusted. Wheels are installed at the bottom of the flatbed cart, and the wheels can be universal wheels for easy movement.

[0034] Specifically: The lead screw assembly includes a lead screw 17 fixed to the mounting plate 13 through a bearing seat 16. A nut 18 is fitted on the lead screw 17. The motor 1 is fixed on the nut 18, and a driving member 19 is fixed to one end of the lead screw 17. The driving member includes, but is not limited to, a motor.

[0035] Further, the cross-section of the mounting plate 13 is in the shape of a "C". The lead screw 17 is vertically arranged along the length direction of the mounting plate 13. The two sides of the mounting plate 13 are rotatably connected to the mounting frame 14 through rotating shafts. The cross-sectional shape of the mounting frame is the same as that of the mounting plate.

[0036] Further, parallel guide rails 20 are provided on the surface of the mounting plate 13. The guide rails are arranged along the length direction of the mounting plate. The guide rails 20 are parallel to the lead screw 17. The lead screw 17 is arranged between the two guide rails 20. A chute 21 with a "⊥" cross-section is arranged on the guide rail 20 along its length direction. A slider adapted to the chute 21 is arranged on the body of the motor 1 corresponding to the guide rail 20, so as to ensure the stability of the motor when running along the lead screw.

[0037] Further, the slider includes a fixed rod 22 fixed to the body of the motor 1. The other end of the fixed rod 22 is fixed with a bearing 23. The bearing 23 is located in the chute 21. The setting of the bearing can effectively reduce the friction force of the slider sliding in the chute.

[0038] When using the present utility model, after moving the flatbed truck to the designated position, manually rotate the mounting plate as needed, then start the driving member and the motor, insert the sampling cylinder into the soil layer. After inserting to the designated depth, turn off the motor, control the driving member to reset the motor; then remove the drill bit, loosen the nut, pull the pull rod to take out the soil sample. At the same time, the soil sample in the cavity is also poured out; subsequently, the sampling sleeve is reset, the drill bit is reset, and the next sampling is carried out.

[0039] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0040] The above embodiments are only described for the preferred mode of the present utility model, and do not limit the scope of the present utility model. Without departing from the design spirit of the present utility model, various deformations and improvements made by those of ordinary skill in the art to the technical solution of the present utility model should fall within the protection scope determined by the claims of the present utility model.

Claims

1. A sampling device for blasting engineering, characterized in that: It includes a motor (1) and a sampling cylinder (2) connected to the motor (1). The bottom of the sampling cylinder (2) is open. A cavity (3) is provided in the inner wall of the sampling cylinder (2). A number of sampling holes (4) communicating with the cavity (3) are provided on the outer wall of the sampling cylinder (2). A sampling inlet (5) communicating with the inside of the sampling cylinder (2) is provided on the outer wall of the sampling cylinder (2). A fixing groove communicating with the cavity (3) is provided at the bottom of the sampling cylinder (2). A drill bit (6) is threadedly connected in the fixing groove, and the drill bit (6) communicates with the inside of the sampling cylinder (2).

2. A sampling device for blasting engineering according to claim 1, characterized in that: The drill bit (6) is annular and is threadedly connected into the fixing groove. The inner end of the sampling cylinder (2) extending into the drill bit (6) abuts against the inner end face of the drill bit (6). Drill teeth (7) are provided at the bottom of the drill bit (6).

3. A sampling device for blasting engineering according to claim 2, characterized in that: A sampling sleeve (8) for assisting the sample to fall off is provided in the sampling cylinder (2). The bottom of the sampling sleeve (8) is open and is detachably fixed to the inner top of the sampling cylinder (2). A pull rod (9) is provided on the sampling sleeve (8).

4. A sampling device for blasting engineering according to claim 3, characterized in that: A receiving groove is vertically and penetratingly provided on the inner wall of the sampling cylinder (2). The pull rod (9) is located in the receiving groove. One end of the pull rod (9) extends out of the bottom opening of the sampling cylinder (2). An annular groove (10) for the pull rod (9) to extend into is provided on the inner end face of the drill bit (6).

5. A sampling device for blasting engineering according to claim 3, characterized in that: A fixing bolt (11) is fixed to the top end of the sampling sleeve (8). The fixing bolt (11) extends out of the sampling cylinder (2) and is fixed by a nut (12).

6. A sampling device for blasting engineering according to any one of claims 1 to 5, characterized in that: The motor (1) is fixed on a lead screw assembly. The lead screw assembly is fixed on a mounting plate (13). The mounting plate (13) is rotatably arranged on a mounting frame (14). The mounting frame (14) is fixed on a flatbed truck (15).

7. A sampling device for blasting engineering according to claim 6, characterized in that: The lead screw assembly includes a lead screw (17) fixed to the mounting plate (13) through a bearing block (16). A nut (18) is fitted on the lead screw (17). The motor (1) is fixed on the nut (18). A driving member (19) is fixed to the end of the lead screw (17).

8. A sampling device for blasting engineering according to claim 6, characterized in that: The cross-section of the mounting plate (13) is in a "C" shape. The lead screw (17) is vertically arranged along the length direction of the mounting plate (13). Both sides of the mounting plate (13) are rotatably connected to the mounting frame (14) through rotating shafts.

9. A sampling device for blasting engineering according to claim 8, characterized in that: Parallel guide rails (20) are provided on the plate surface of the mounting plate (13). The guide rails (20) are parallel to the lead screw (17). The lead screw (17) is arranged between the guide rails (20). A chute (21) with a cross-section in a "⊥" shape is provided on the guide rails (20) along their length direction. A slider adapted to the chute (21) is provided on the body of the motor (1) corresponding to the guide rails (20).

10. A sampling device for blasting engineering according to claim 9, characterized in that: The slider includes a fixing rod (22) fixed to the body of the motor (1). The other end of the fixing rod (22) is fixed with a bearing (23). The bearing (23) is located in the chute (21).

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