Manual demolding bulldozing device

Abstract

The utility model relates to the technical field of geotechnical engineering test tools, in particular to a manual demolding bulldozing device. Comprising a support and a tray, an upper annular plate is arranged at the top of the support, a hole position for materials to pass through is formed in the center of the upper annular plate, and a jacking part is arranged at the bottom of the support; the tray is connected with the support and can be adjusted in a sliding mode in the height direction of the support, a through hole is formed in the center of the tray, and the through hole and the hole position are concentrically arranged. The mold is placed between the tray and the upper annular plate, and is matched with the jacking piece to push a rock and soil sample in the mold, so that the demolding operation can be quickly completed, the whole process is stable in movement, and the integrity of the sample is effectively ensured.

Description

Technical Field

[0001] This utility model relates to the field of geotechnical engineering testing tools, and in particular to a manual demolding and soil-pushing device. Background Technology

[0002] Unconfined compressive strength testing is an important part of geotechnical testing. It is mainly used to determine the unconfined compressive strength and sensitivity of soil. It is of key significance for understanding the mechanical properties of soil, assessing the bearing capacity of foundations, and determining the stability of slopes in engineering applications. During the test, the demolding process directly affects the integrity of the soil sample and the accuracy of the test results.

[0003] Traditional unconfined compressive strength test molds are often removed manually or pried out with simple tools. During this process, due to the significant friction between the mold and the soil sample, and the difficulty in ensuring uniform force application, the soil sample is easily subjected to uneven compression during demolding, leading to cracks, deformation, or even breakage. This damages the original structure of the soil sample and affects the accurate determination of subsequent unconfined compressive strength and other indicators. Furthermore, for some soft clays and other highly viscous soil samples, the edges of the soil sample tend to adhere to the inner wall of the mold during demolding, and forced demolding will cause damage to the edges of the soil sample. Therefore, there is an urgent need for a demolding device that can reliably remove the soil sample. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a manual demolding and soil-pushing device in response to the above-mentioned technical deficiencies. By placing the mold between the tray and the upper ring plate, and cooperating with the lifting component to push the soil sample inside the mold, the demolding operation can be completed quickly. The whole process is stable and effectively ensures the integrity of the sample.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model includes: a support and a tray. The support has an upper ring plate at the top, and the upper ring plate has a hole at the center for material to pass through. The support has a lifting member at the bottom. The tray is connected to the support and can be slidably adjusted along the height direction of the support. The tray has a through hole at the center, and the through hole and the hole are arranged concentrically.

[0006] Preferably, the support includes a base and uprights; the bottom ends of the plurality of uprights are arranged along the edge of the base, and the top ends of the uprights are connected to the upper ring plate.

[0007] Preferably, the outer circumference of the tray is provided with a sliding sleeve that connects to the bracket, and the sliding sleeve is provided with a positioning knob.

[0008] Preferably, the upper ring plate has multiple fixing holes, which are connected to the top of the bracket and fixed by nuts.

[0009] Preferably, the hole adopts a stepped hole structure, and the hole is provided with an upper top ring inside, and the upper top ring is provided with a second circular hole at its center.

[0010] Preferably, the hole is provided with an upwardly extending threaded rod, which passes through the top ring and is fixed by a nut.

[0011] Preferably, the lifting component is a hydraulic jack.

[0012] Preferably, a detachable disc plate is provided above the lifting member.

[0013] Preferably, the upper surface of the tray is provided with indicator lines.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. The tray can be displaced relative to the support along the height direction, and the support position can be adjusted according to the mold of different heights, thereby improving the applicability. In addition, the lifting component pushes the internal sample, ensuring smooth demolding and maintaining the integrity of the internal sample as much as possible, thereby improving the detection accuracy in subsequent testing steps.

[0016] 2. The structural design of the tray and top ring allows for demolding of unconfined compression test molds of different sizes (50mm, 100mm, 150mm). The entire process can be manually operated by a single person. The demolding effect does not depend on the operator's experience and skills, reducing the technical requirements for operators and labor costs, and improving demolding efficiency.

[0017] 3. The device has a simple and reliable overall structure, low manufacturing cost, no need for complicated preparation work for automated equipment, and avoids the impact of equipment failure, program errors and other problems. It can be picked up and used at any time as needed, with strong instant response, shortening operation time and improving test efficiency.

[0018] 4. The sliding sleeve and the upright are connected by sliding and are positioned by the positioning knob. The height adjustment is simple and convenient. Furthermore, multiple tray structures with different through hole sizes can be designed to meet the demolding requirements of different mold specifications. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a manual demolding bulldozing device.

[0020] Figure 2 This is a schematic diagram showing the changes in the dimensions of the top ring and the through hole;

[0021] Figure 3 This is a schematic diagram showing the changes in the dimensions of the disc plate;

[0022] Figure 4 This is a schematic diagram of the top structure of the upper ring plate;

[0023] Figure 5 This is a schematic diagram of the pallet structure;

[0024] Figure 6 This is a schematic diagram of an explosion at the upper ring plate.

[0025] In the diagram: 1. Bracket; 2. Tray; 3. Upper ring plate; 4. Lifting component; 101. Base; 102. Upright pole; 201. Through hole; 202. Sliding sleeve; 203. Positioning knob; 204. Indicator line; 301. Hole; 302. Fixing hole; 303. Upper top ring; 304. Second circular hole; 305. Threaded rod; 401. Disc plate. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0027] Specific implementation method one: Combining Figure 1-6 As shown, a manual demolding and soil-pushing device includes: a support 1 and a tray 2. The support 1 has an upper ring plate 3 on its top, and the upper ring plate 3 has a hole 301 in the center for material to pass through. A lifting component 4 is installed at the bottom of the support 1. The tray 2 is connected to the support 1 and can slide and adjust along the height direction of the support 1. The center of the tray 2 has a through hole 201, which is concentrically arranged with the hole 301. By placing the mold on the tray 2 and adjusting its center position, the tray 2 is pushed upward to make the top surface of the mold contact the bottom surface of the upper ring plate 3 to complete the positioning. Then, the lifting component 4 is activated. The push rod of the lifting component 4 passes through the through hole 201 and realizes the pushing operation of the soil and rock test inside the mold. The soil and rock sample protrudes from the hole 301 for easy access by the staff. The entire lifting process is stable, ensuring the integrity of the test as much as possible and improving the accuracy of subsequent testing.

[0028] Preferred embodiments, in combination Figure 1 and Figure 2 As shown, the support 1 includes a base 101 and uprights 102; the bottom ends of multiple uprights 102 are arranged along the edge of the base 101 and welded to the base 101, while the top ends of the uprights 102 can be fixed to the upper ring plate 3 by welding. The base 101 can be circular or rectangular, etc. The uprights 102 are preferably selected in three positions to maintain the stability of the overall structure, and at least two are required. During the arrangement of the uprights 102, at least one space should be reserved in one direction to facilitate the placement of the mold.

[0029] Preferred embodiments, in combination Figure 3 and Figure 5 As shown, the outer circumference of the tray 2 is provided with a sliding sleeve 202 that connects to the bracket 1. The diameter of the hole inside the sliding sleeve 202 is equal to the diameter of the upright 102. After fitting together, a sliding connection is formed. At the same time, a positioning knob 203 with a threaded connection is installed on the sliding sleeve 202. After the tray 2 is adjusted to the specified height, the positioning knob 203 is rotated to make the positioning knob 203 contact the upright 102, and the positioning braking is achieved by using friction. The operation is simple and reliable.

[0030] Preferred embodiments, in combination Figure 6 As shown, in order to facilitate the replacement of the tray 2 and thus adapt to the demolding operation of molds of different specifications, multiple fixing holes 302 are machined on the upper ring plate 3, and external threads are machined on the top of the upright 102. After the fixing holes 302 are inserted into the upright 102, the upper ring plate 3 can be installed and fixed by two nuts.

[0031] Preferred embodiments, in combination Figure 6 As shown in the figure, the hole position 301 has a stepped hole structure. The upper top ring 303 can be installed inside the hole position 301. The upper top ring 303 has a second circular hole 304 in the center. The second circular hole 304 can be designed to a specified size to form upper top rings 303 of different specifications. When installed with the hole position 301, the whole device can meet the demolding operation of molds of multiple sizes. The hole position 301 itself can also be designed to different sizes, as shown in the figure. For example, for demolding operation with a diameter of 150mm, two upper top rings 303 with sizes of 100mm and 50mm can be produced and used together.

[0032] Preferred embodiments, in combination Figure 6 As shown, the hole 301 is provided with an upwardly extending threaded rod 305, which passes through the upper top ring 303 and is fixed by a nut, so as to realize the detachable connection between the two and facilitate replacement.

[0033] Preferred embodiments, in combination Figure 1 As shown, the lifting component 4 adopts a hydraulic jack, which is convenient to purchase and reduces the difficulty of manufacturing; at the same time, the lifting component 4 can also adopt a hydraulic cylinder structure, which can also meet the usage requirements.

[0034] Preferred embodiments, in combination Figure 2 and Figure 3 As shown, a detachable disc plate 401 is provided above the lifting component 4. The disc plate 401 can be processed into multiple disc plates 401 with different diameters according to the needs of use. At the same time, a small hole is opened in the center of the disc plate 401, and the piston push rod of the lifting component 4 has a corresponding threaded small hole. The connection between the two is achieved by screws.

[0035] Preferred embodiments, in combination Figure 5As shown, in order to make it easier to find the center position of the mold when placing it, a circular indicator line 204 can be machined on the upper surface of the tray 2. The diameter of the indicator line 204 is the same as the outer diameter of the mold, which facilitates the installation work of the staff.

[0036] When the lifting component 4 uses a hydraulic jack, it is placed on the upper part of the base 101. The rated lifting capacity is 5t, the minimum height is ≤215mm, the lifting height is ≥150mm, and the adjustment height is ≥60mm. The nuts on the top of the upper ring plate 3 can be three cap nuts to prevent the exposed part of the fastener from being covered, and to prevent moisture or other corrosive substances from entering, thus extending the service life. The disc plate 401 can be in diameters of 150mm, 100mm, and 50mm. The through hole 201 of the tray 2 can also be in three sizes with inner diameters of 50mm, 150mm, and 100mm.

[0037] The test operation procedures for this device are as follows:

[0038] (1) Place the prepared test mold on the tray 3. If it is a 50mm small test mold, and the diameter of the push rod part of the lifting part 4 is similar, then there is no need to place the disc plate 401. Then tighten the positioning knobs 203 on both sides of the tray 2 to position the test mold. For 100mm and 150mm test molds, the tray 3 needs to be removed and replaced, or the corresponding upper ring 303 can be installed and the corresponding tray 2 can be configured.

[0039] (2) After preparation, start the lifting component 4, so that the push rod part of the lifting component 4 comes into contact with the soil sample, and then continuously push the jack out of the test mold by pressing the rocker arm up and down;

[0040] (3) After pushing out the soil sample, loosen the oil valve, gently push the push rod down from the top to reset it, clean the dust, and wait for the next use.

[0041] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A hand demolding bulldozer apparatus characterized by, The utility model relates to a kind of material conveying device, including: Support (1) and tray (2), the top of the support (1) is equipped with upper ring plate (3), the center of the upper ring plate (3) has hole position (301) for material passing, the bottom of the support (1) is equipped with jacking part (4);The tray (2) is connected with support (1), and can be adjusted along the height direction of support (1), and the center of the tray (2) is equipped with through-hole (201), and the through-hole (201) is arranged concentrically with hole position (301).

2. A hand demoulding bulldozing device according to claim 1, characterised in that: The support (1) includes base (101) and vertical rod (102);The bottom end of multiple vertical rods (102) is arranged along the edge of base (101), and the top end of the vertical rod (102) is connected with the upper ring plate (3).

3. A hand demolding bulldozer device according to claim 1, characterized in that: The outer circle of the tray (2) is equipped with sliding sleeve (202) connected with support (1), and the sliding sleeve (202) is equipped with positioning knob (203).

4. A hand demolding bulldozer device according to claim 1, characterized in that: The upper ring plate (3) has multiple fixing holes (302), and the fixing holes (302) are connected with the top of the support (1) and are fixed by nut.

5. A hand demoulding bulldozing device according to claim 4, characterised in that: The hole position (301) adopts stepped hole structure, and the inside of the hole position (301) is equipped with upper top ring (303), and the center of the upper top ring (303) is equipped with second circular hole (304).

6. A hand demoulding bulldozing device according to claim 5, characterised in that: The hole position (301) is equipped with upwardly extending threaded rod (305), and the threaded rod (305) penetrates through the upper top ring (303) and is fixed by nut.

7. A hand demolding bulldozer device according to claim 1, characterized in that: The jacking part (4) adopts hydraulic jack.

8. A hand demolding bulldozer device according to claim 1, characterized in that: The upper side of the jacking part (4) is equipped with detachable disc plate (401).

9. A hand demolding bulldozer device according to claim 1, characterized in that: The upper surface of the tray (2) is equipped with indicating line (204).

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