Stirring device for soil engineering compaction test

Abstract

The utility model provides a stirring device for a soil engineering compaction test, which is used for solving the problems that in the prior art, a sample to be detected is manually stirred, so that the stirring is non-uniform, and powder is easy to raise, and comprises a base, a stirring barrel, a feed port sealing mechanism, a discharge port sealing mechanism, a water inlet mechanism and a stirring mechanism, a feeding hole sealing mechanism is arranged at the top of the stirring barrel, so that when the stirring device is used for stirring soil and water, dust is always in a stirring cavity, dust raising can be avoided, and damage to respiratory health of operators is avoided; in addition, according to the scheme, stirring is conducted through the stirring mechanism, it can be ensured that soil and water are evenly stirred, and the stirring efficiency can also be improved.

Description

Technical Field

[0001] This utility model belongs to the field of soil compaction testing, and in particular relates to a mixing device for soil compaction testing. Background Technology

[0002] The purpose of soil compaction tests is to assess the compaction characteristics of soil by determining its optimum moisture content and maximum dry density, providing key parameters for engineering design and construction. Test results are used for quality control, optimization of construction parameters, and prediction of engineering performance, ensuring the safety and economy of the project.

[0003] In geotechnical compaction tests, water and soil samples need to be mixed to prepare the test specimen. When preparing the test specimen,

[0004] Water and soil samples need to be mixed, and currently, manual mixing is the most common method. Manual mixing is often inefficient and time-consuming, and the powder is easily stirred up during the mixing process, which can harm the respiratory health of the operators. In addition, manual mixing can also result in uneven mixing, which can affect the accuracy of subsequent experiments. Utility Model Content

[0005] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a mixing device for soil compaction testing, which solves the problems of uneven mixing and easy dust dispersion in the manual mixing of the test sample in the prior art.

[0006] To achieve the above and other related objectives, this utility model provides a mixing device for a soil compaction test, comprising: a base; a mixing tank, which is mounted on the base and has a mixing chamber inside; a cover plate on the top of the mixing tank, with an inlet for feeding material and an outlet for discharging material at the bottom; the inlet and outlet are connected to the mixing chamber; an inlet sealing mechanism, mounted on the cover plate, for sealing the inlet; an outlet sealing mechanism, mounted on the base, for sealing the outlet; a water inlet mechanism, mounted on the base and including multiple water inlet nozzles mounted on the cover plate, with their outlet ends connected to the mixing chamber; and a mixing mechanism, including a mixing motor, a mixing shaft, and mixing blades, the mixing motor mounted on the cover plate, the mixing blades mounted on the mixing shaft and inside the mixing chamber, and one end of the mixing shaft connected to the mixing motor.

[0007] Optionally, the inlet sealing mechanism includes a sealing cover and a latch. The sealing cover is rotatably connected to the cover plate, and the latch is disposed on the sealing cover. The latch is used to fix the sealing cover to the cover plate so that the sealing cover seals the inlet.

[0008] Optionally, the discharge port sealing mechanism includes a telescopic drive and a sealing baffle. The telescopic drive is mounted on the base, and the sealing baffle is connected to the output end of the telescopic drive. The sealing baffle is used to seal the discharge port.

[0009] Optionally, the mixing tank is provided with a clearance opening at one end near the discharge port for the sealing baffle to pass through, and the sealing baffle is slidably connected to the side wall of the clearance opening.

[0010] Optionally, the sealing baffle is provided with a sliding groove, and the side wall of the clearance opening is provided with a protrusion that is slidably connected to the sliding groove.

[0011] Optionally, the connection end between the sealing baffle and the telescopic drive is provided with a first abutting part, which is used to abut against the outer wall of the mixing tank to limit the maximum distance the sealing baffle slides within the clearance opening.

[0012] Optionally, the mixing device also includes a receiving mechanism, which is mounted on the base and located at the lower end of the mixing tank.

[0013] Optionally, the receiving mechanism includes a chute, a filter plate, and a water-blocking strip; the chute is inclined relative to the horizontal plane, the filter plate is disposed in the chute, there is a gap between the filter plate and the bottom of the chute, and the water-blocking strip is disposed at the bottom of the chute and located in the gap between the filter plate and the bottom of the chute.

[0014] Optionally, the mixing tank may be made of corrosion-resistant or wear-resistant materials.

[0015] Optionally, the inner wall of the mixing chamber is coated with an anti-stick layer.

[0016] As described above, the mixing device for soil compaction testing according to this utility model has at least the following beneficial effects: By setting a sealing mechanism at the inlet at the top of the mixing tank, it is ensured that dust remains within the mixing chamber during the mixing of soil and water, preventing dust from being stirred up and avoiding damage to the respiratory health of operators. Furthermore, the mixing is performed by a mixing mechanism, ensuring uniform mixing of soil and water and improving mixing efficiency. Attached Figure Description

[0017] Figure 1 The diagram shown is a schematic diagram of the mixing device for a soil compaction test according to this invention.

[0018] Figure 2 This is a schematic diagram showing another angle of the mixing device for a soil compaction test according to the present invention, and a partial cross-section of the mixing tank.

[0019] Figure 3 Displayed as Figure 1 Enlarged view of point A in the image.

[0020] Figure 4 The diagram shown is a structural schematic of the sealing baffle of a mixing device for a soil compaction test according to this utility model.

[0021] Figure 5 The diagram shown is a partial structural schematic of the mixing tank of a mixing device for a soil compaction test according to this utility model.

[0022] Figure 6 The diagram shown is a structural schematic of the receiving mechanism of the mixing tank of a mixing device for a soil compaction test according to this utility model.

[0023] Figure 7 The diagram shown is a cross-sectional view of the receiving mechanism of the mixing tank of a mixing device for a soil compaction test according to this utility model. Detailed Implementation

[0024] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0025] Please refer to all the accompanying drawings below. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0026] The following embodiments are for illustrative purposes only. These embodiments can be combined and are not limited to the content shown in any single embodiment below.

[0027] Please see Figure 1-2This utility model provides a mixing device for a soil compaction test, including a base 1; a mixing tank 2, which is mounted on the base 1 and has a mixing chamber 21 inside; a cover plate 22 on the top of the mixing tank 2, with an inlet for feeding material on the cover plate 22 and an outlet for discharging material at the bottom of the mixing tank 2; the inlet and outlet are connected to the mixing chamber 21; an inlet sealing mechanism 3, mounted on the cover plate 22, for sealing the inlet; and an outlet sealing mechanism 4, mounted on the base. 1. The discharge port sealing mechanism 4 is used to seal the discharge port; the water inlet mechanism 5 is set on the base 1 and includes multiple water inlet nozzles 51. The water inlet nozzles 51 are set on the cover plate 22 and their water outlets are set inside the stirring chamber 21; the stirring mechanism 6 includes a stirring motor 61, a stirring shaft 62 and stirring blades 63. The stirring motor 61 is set on the cover plate 22, the stirring blades 63 are set on the stirring shaft 62 and are set inside the stirring chamber 21, and one end of the stirring shaft 62 is connected to the stirring motor 61.

[0028] The mixing tank 2 is cylindrical and is mounted on the base 1 via multiple support columns. The end of the mixing tank 2 near the base 1 tapers to form a discharge port. A cover plate 22 is provided on the top of the mixing tank 2, and the cover plate 22 has a feed inlet for soil to enter the mixing chamber 21. The cover plate 22 can be a disc-shaped structure and can be fixedly connected to the mixing tank 2 by bolts or other means.

[0029] The water inlet mechanism 5 may include a water tank 52, a water pump 53, a water inlet pipe, and multiple water inlet nozzles 51. The water tank 52 is mounted on the base 1. The water pump 53 is connected to the water inlet pipe and the water tank 52. The water inlet pipe is then connected to the water inlet nozzles 51, thus using the water pump 53 to transfer the water stored in the water tank 52 into the mixing chamber 21. The mixing motor 61 of the mixing mechanism 6 is located at the center of the cover plate 22 and on the side of the cover plate 22 away from the mixing tank 2. The mixing blades 63 may be a mixing paddle structure, which is used to mix the soil and water in the mixing tank 2. The mixing blades 63 may also be spiral mixing blades 63. The end of the spiral mixing blades 63 away from the mixing shaft 62 can abut against the inner wall of the mixing tank 2, thereby continuously scraping off the mixture of soil and water on the inner wall of the mixing tank 2 during the mixing process, preventing it from sticking to the inner wall of the mixing tank 2.

[0030] The mixing tank 2 can be made of corrosion-resistant and wear-resistant materials, such as stainless steel or high-strength plastics, to adapt to the abrasive and corrosive environment when soil and water are mixed. A layer of anti-stick material, such as polytetrafluoroethylene (PTFE) or Teflon coating, can also be coated on the inner wall of the mixing chamber 21. These materials have excellent anti-stick properties and can effectively reduce the adhesion of the soil and water mixture to the inner wall of the mixing chamber 21.

[0031] The inlet sealing mechanism 3 may include a sealing cover 31 and a latch 32. The sealing cover 31 is rotatably connected to the cover plate 22, and the latch 32 is disposed on the sealing cover 31. The latch 32 is used to fix the sealing cover 31 to the cover plate 22 so that the sealing cover 31 seals the inlet. Specifically, in this embodiment, there are two inlets, and the inlets are fan-shaped, and the sealing cover 31 is also a fan-shaped structure. The sealing cover 31 and the cover plate 22 are connected by a hinge 33, thereby realizing the rotatable connection between the sealing cover 31 and the cover plate 22. The movable end of the latch 32 is disposed on the sealing cover 31, and the fixed end is disposed on the cover plate 22. This ensures that the mixing tank 2 is in a sealed state when the mixing device is mixing soil and water, preventing dust from being raised and affecting the respiratory health of the operators.

[0032] The water inlet nozzles 51 can be divided into two groups. One group of water inlet nozzles 51 is arranged in a ring on the cover plate 22, with the water outlet end of the water inlet nozzles 51 positioned close to the inner wall of the mixing tank 2. This group is used to spray water onto the inner wall of the mixing tank 2, facilitating the rinsing of the inner wall of the mixing tank 2 during subsequent cleaning. The other group can be arranged in a rectangular shape around the mixing motor 61. This group can be atomizing nozzles, used to supply water into the mixing tank 2 and also to suppress dust.

[0033] Please see Figure 1-2 The discharge port sealing mechanism 4 may include a telescopic drive component 41 and a sealing baffle 42. The telescopic drive component 41 is mounted on the base 1, and the sealing baffle 42 is connected to the output end of the telescopic drive component 41. The sealing baffle 42 is used to seal the discharge port. The discharge port sealing mechanism 4 may also include a mounting base and multiple mounting columns. One end of each mounting column is fixedly connected to the base 1, and the other end is connected to the mounting base. The mounting base may be a rectangular plate structure, and the mounting columns may be cylindrical structures. The number of these columns may be four, located at the four corners of the mounting base. The mounting base provides an installation location for the telescopic drive component 41. The telescopic drive component 41 may be a telescopic cylinder or a linear motor, etc., which drives the sealing baffle 42 to move linearly, so that the sealing baffle 42 seals or does not seal the discharge port. In one implementation, when sealing the discharge port, the upper side of the sealing baffle 42 may directly abut against the bottom of the mixing tank 2, that is, against the discharge port, thereby achieving a seal on the discharge port.

[0034] Please see Figure 1-4 In one implementation, the mixing tank 2 has a clearance opening a231 near the discharge port for the sealing baffle 42 to pass through. The clearance opening a231 penetrates the side wall of the mixing tank 2, and the extension direction of the clearance opening a231 is perpendicular to the center line of the mixing tank 2. Figure 4As shown, after penetrating the side wall of the mixing tank 2, the clearance opening a231 forms clearance openings a231a and a231b on the mixing tank 2. The side walls of clearance openings a231a and a231b are slidably connected to the sealing baffle 42. The clearance opening a231 serves to support the sealing baffle 42, ensuring that the sealing baffle 42 can seal the discharge port.

[0035] The sealing baffle 42 can be a rectangular structure, with a groove 421 on its outer side wall. The extension direction of the groove 421 is the same as that of the sealing baffle 42. The corresponding clearance opening a231 is also a rectangular structure, with a protrusion 233 on its inner side wall that matches the groove 421. The cooperation between the protrusion 233 and the groove 421 can guide the sealing baffle 42. There can be four protrusions 233 and grooves 421. Each side wall of the clearance opening a231 has one protrusion 233, and the corresponding groove 421 is also located on the outer side wall of the sealing baffle 42 in the extension direction.

[0036] The connecting section between the sealing baffle 42 and the telescopic drive member 41 may be provided with a first abutting part 422. The first abutting part 422 is used to abut against the outer side wall of the mixing tank 2 to limit the maximum distance that the sealing baffle 42 slides within the clearance opening a231. Specifically, the first abutting part 422 may be a convex structure, which is provided on the upper or lower side wall of the connecting section between the sealing baffle 42 and the telescopic drive member 41. Correspondingly, a second abutting part may also be provided on the outer side wall of the mixing tank 2. The second abutting part is a plane formed by cutting a portion structure on the outer side wall of the mixing tank 2, which is used to abut against the first abutting part 422 to prevent the output end of the telescopic drive member 41 from moving into the mixing chamber 21.

[0037] Please see Figure 1-2 6-7, The mixing device may also include a receiving mechanism 7, which is mounted on the base 1 and located at the lower end of the mixing tank 2. Specifically, the receiving mechanism 7 is located at the lower end of the discharge port. After the soil and water are mixed, the receiving mechanism 7 is used to transfer the soil and water mixture.

[0038] The receiving mechanism 7 may include a chute 421 and a filter plate 72. The chute 421 is mounted on the base 1 by multiple support columns and is inclined relative to the horizontal plane. The filter plate 72 is disposed within the chute 421, and there is a gap between the filter plate 72 and the bottom of the chute 421. A water-blocking strip 73 is provided at the bottom of the chute 421, and the water-blocking strip 73 is disposed within the gap between the filter plate 72 and the bottom of the chute 421. Specifically, the water-blocking strip 73 serves to mount the filter plate 72. The arrangement of the filter plate 72 and the water-blocking strip 73 divides the chute 421 into three parts: the upper surface of the chute 421 and the filter plate 72 encloses a filtration section 74; the filter plate 72, the water-blocking strip 73, and the chute 421 form a water storage section 75; and the chute 421 and the water-blocking strip 73 form a transfer section 76 that guides the mixture of soil and water. After the mixing device agitates the soil and water, the filtration section 74 and the transfer section 76 are used to transfer the soil and water mixture. When cleaning the mixing device, the filtration section 74 filters out soil and other impurities from the wastewater, preventing these impurities from entering the water storage section 75. The water storage section 75 may also be provided with a water outlet, which can be connected to a water outlet pipe for transferring water from the water storage section 75.

[0039] The working principle of the mixing device of this utility model is as follows: When mixing soil and water, the feed inlet can be opened, and the soil can be put into the mixing chamber 21 through the feed inlet. Then, the sealing cover 31 is fixed to the cover plate 22 using the buckle 32. Then, the water pump 53 and the mixing device are started to transfer the water in the water tank 52 into the mixing chamber 21 and to fully mix the soil and water using the mixing device. After the mixing is completed, the telescopic drive member 41 drives the sealing baffle 42 to slide in the clearance opening a231, so that the sealing baffle 42 releases the seal on the discharge port, thereby transferring the soil and water mixture out of the mixing chamber 21. The receiving mechanism 7 is then used to transfer the soil and water mixture to other locations.

[0040] During the cleaning of the mixing chamber 21, water from the water tank 52 is transferred to the mixing chamber 21 using the water pump 53. The water inlet nozzle 51 is used to clean the mixing blades 63 and the inner wall of the mixing chamber 21. At the same time, the telescopic drive component 41 can be used to drive the sealing baffle 42 to slide within the clearance opening a231, thereby releasing the seal of the discharge port and transferring the wastewater from the cleaning mixing chamber 21. After the wastewater flows to the receiving mechanism 7, it is filtered by the filter plate 72 to remove soil and other impurities from the wastewater, preventing impurities from entering the water storage section 75 of the chute 421 and clogging the outlet pipe.

[0041] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A mixing device for a soil compaction test, characterized in that, include: Base; A mixing tank is mounted on the base. The mixing tank contains a mixing chamber. A cover plate is provided on the top of the mixing tank, and a feed inlet is provided on the cover plate. A discharge outlet is provided on the bottom of the mixing tank. The feed inlet and the discharge outlet are connected to the mixing chamber. A feed inlet sealing mechanism is disposed on the cover plate and is used to seal the feed inlet; A discharge port sealing mechanism is provided on the base and is used to seal the discharge port. A water inlet mechanism is provided on the base and includes multiple water inlet nozzles. The water inlet nozzles are provided on the cover plate and their outlet ends are located inside the stirring chamber. A stirring mechanism, comprising a stirring motor, a stirring shaft, and stirring blades, wherein the stirring motor is mounted on the cover plate, the stirring blades are mounted on the stirring shaft and disposed within the stirring chamber, and one end of the stirring shaft is connected to the stirring motor.

2. The mixing device for a soil compaction test according to claim 1, characterized in that: The inlet sealing mechanism includes a sealing cover and a latch. The sealing cover is rotatably connected to the cover plate, and the latch is disposed on the sealing cover. The latch is used to fix the sealing cover on the cover plate so that the sealing cover seals the inlet.

3. The mixing device for a soil compaction test according to claim 1, characterized in that: The discharge port sealing mechanism includes a telescopic drive component and a sealing baffle. The telescopic drive component is disposed on the base, and the sealing baffle is connected to the output end of the telescopic drive component. The sealing baffle is used to seal the discharge port.

4. The mixing device for a soil compaction test according to claim 3, characterized in that: The mixing tank is provided with a clearance opening at one end near the discharge port for the sealing baffle to pass through, and the sealing baffle is slidably connected to the side wall of the clearance opening.

5. The mixing device for a soil compaction test according to claim 4, characterized in that: The sealing baffle is provided with a sliding groove, and the side wall of the clearance opening is provided with a protrusion that is slidably connected to the sliding groove.

6. The mixing device for a soil compaction test according to claim 4, characterized in that: The sealing baffle is provided with a first abutting part at the connection end with the telescopic drive member. The first abutting part is used to abut against the outer wall of the mixing tank and to limit the maximum distance that the sealing baffle slides in the clearance opening.

7. The mixing device for a soil compaction test according to claim 1, characterized in that: The stirring device also includes a receiving mechanism, which is disposed on the base and located at the lower end of the stirring tank.

8. The mixing device for a soil compaction test according to claim 7, characterized in that: The receiving mechanism includes a chute, a filter plate, and a water-blocking strip; The chute is inclined relative to the horizontal plane, the filter plate is disposed in the chute, the filter plate has a gap with the bottom of the chute, and the water-blocking strip is disposed at the bottom of the chute and located in the gap between the filter plate and the bottom of the chute.

9. The mixing device for a soil compaction test according to claim 1, characterized in that: The mixing tank is made of corrosion-resistant or wear-resistant materials.

10. A mixing device for a soil compaction test according to claim 1 or 9, characterized in that: The inner wall of the stirring chamber is coated with an anti-sticking layer.

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