Concrete sample mold easy to demold

Abstract

The utility model relates to a concrete sample mold easy to demold. The concrete sample mold easy to demold comprises a bottom plate, side plates and a two-way lead screw. The four side plates are arranged around the square bottom plate, and every two adjacent side plates are matched with each other; the square bottom plate is horizontally arranged in the middle of the side plate; threaded holes are formed in the lower middle portions of the side plates, and the two bidirectional lead screws are matched with the threaded holes of the two opposite side plates respectively. The two-way lead screws are arranged longitudinally and transversely, and the longitudinal two-way lead screw is arranged above the transverse two-way lead screw. According to the concrete sample mold easy to demold, the two two-way lead screws are connected with the side plates respectively, the two-way lead screws can be directly rotated to enable the side plates on the two sides to be separated from a sample at the same time, and the problem that the concrete sample mold adheres to one side plate and cannot fall off is solved; the two bidirectional lead screws are arranged longitudinally and transversely, the longitudinal bidirectional lead screw is arranged above the transverse bidirectional lead screw, and the longitudinal bidirectional lead screw and the transverse bidirectional lead screw do not influence each other.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a concrete sample mold which is easy to demould. Background Art

[0002] A concrete specimen is a portion of concrete removed from a sample before it has dried and solidified, used for testing and analysis of various physical and mechanical properties. These specimens are typically subjected to standardized testing under laboratory conditions to ensure that the quality and properties of the concrete meet design and construction requirements.

[0003] When sampling concrete, the concrete needs to be placed in a specified mold, and after it dries, the concrete is taken out for testing and sampling. After the concrete is completely dry, it needs to be demolded, but the concrete tends to be firmly adsorbed on the bottom and side walls of the mold, so when demolding, the bottom of the mold is generally knocked, and the concrete is demolded by vibration, which can easily cause cracks or even breakage in the concrete sample. Therefore, a concrete sample mold that is easy to demold is needed. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems and provide a concrete sample mold which is easy to demould.

[0005] The technical solution of the utility model is: a concrete sample mold that is easy to demould, comprising a bottom plate, side plates and a bidirectional screw; the side plates are four and are arranged around the square bottom plate, and two adjacent side plates cooperate with each other; the square bottom plate is horizontally arranged in the middle of the side plates; a threaded hole is opened in the middle and lower parts of the side plates, and there are two bidirectional screws, which respectively match the threaded holes of the two opposite side plates; the bidirectional screws are arranged vertically and horizontally, and the longitudinal bidirectional screw is arranged above the transverse bidirectional screw.

[0006] The thread directions of the front and rear ends of the bidirectional screw are opposite.

[0007] Preferably, the side panels are provided with horizontal mounting grooves in the middle that match the thickness of the bottom panel. The four sides of the bottom panel are respectively positioned within the mounting grooves in the middle of the four side panels. When the four side panels are connected, the side edges of the bottom panel are positioned within the mounting grooves, preventing leakage of concrete when loading into the mold, which could affect the use of the mold.

[0008] Preferably, the mold also includes a screw fixing frame. The screw fixing frame is generally square in shape, with its top surface connected to the center of the lower surface of the base plate. Four limiting sleeves extend from the lower surface. The limiting sleeves are respectively arranged on the four sides of the fixing frame, and the limiting sleeves correspond to each other in pairs. The limiting sleeves match the limiting grooves on the bidirectional screw. The limiting sleeves are opposite in pairs and match the limiting grooves on the bidirectional screw, which can fix the position of the bidirectional screw and prevent it from rotating. (Separation)

[0009] Preferably, hand wheels are installed at both ends of the bidirectional screw to facilitate the rotation of the bidirectional screw to separate the side plates.

[0010] Preferably, a table is provided below the mold, the table being square, with a side length of the table ≤ the length of the bidirectional screw. The side length of the table is not greater than the length of the bidirectional screw, so that the position of the hand wheel does not conflict with the table.

[0011] Furthermore, the upper surface of the table is provided with a cross-shaped slide groove, and the bottom of the side plate is provided with a raised slide platform to limit the position of the side plate during demoulding to prevent deflection from affecting the rotation of the lead screw.

[0012] Furthermore, the upper surface of the table is provided with a cross-shaped chute, and the bottom of the side plate is provided with a pulley. The pulley can move along the chute, making the demoulding process easier.

[0013] 1. The utility model provides a concrete specimen mold that is easy to demould. It uses two bidirectional screws connected to the side plates respectively. The bidirectional screws can be directly rotated to simultaneously separate the side plates from the specimen, avoiding the problem of the specimen being stuck to one side plate and unable to fall off.

[0014] 2. The two bidirectional screws are arranged vertically and horizontally, and the longitudinal bidirectional screw is arranged above the transverse bidirectional screw, and the two do not affect each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a concrete sample mold that is easy to demould according to the utility model;

[0016] Figure 2 yes Figure 1 AA cross-sectional view (removing the concrete specimen and bottom plate);

[0017] Figure 3 It is a schematic diagram of the structure of the table;

[0018] Figure 4 It is a structural diagram of a bidirectional screw;

[0019] Figure 5 It is a structural diagram of the screw fixing frame;

[0020] In the figure: 00. Concrete specimen, 1. Side panel, 11. Horizontal mounting slot, 12. Slide, 2. Bidirectional screw, 21. Limit slot, 3. Handwheel, 4. Screw fixing bracket, 41. Limit sleeve, 5. Table, 51. Slide. DETAILED DESCRIPTION

[0021] Example 1: See Figure 1-5A concrete specimen mold that is easy to demold comprises a bottom plate, side plates 1, and bidirectional screws 2. The side plates 1 are four in number and arranged around the square bottom plate, with adjacent side plates 1 mating with each other. The square bottom plate is horizontally arranged in the middle of the side plates 1. The side plates 1 have threaded holes in their lower and middle portions, and two bidirectional screws 2 are provided, mating with the threaded holes in the two opposing side plates 1. The two bidirectional screws 2 are arranged vertically and horizontally, with the longitudinal screw 2 positioned above the transverse screw 2. The transverse screws are staggered with the longitudinal screws to prevent them from interfering during use.

[0022] The thread directions of the front and rear ends of the bidirectional lead screw 2 are opposite.

[0023] The side panels 1 are provided with horizontal mounting grooves 11 in the middle that match the thickness of the bottom panel. The four sides of the bottom panel are respectively positioned within the mounting grooves in the middle of the four side panels 1. When the four side panels 1 are connected, the sides of the bottom panel are located within the mounting grooves, preventing concrete from leaking when being loaded into the mold and affecting the mold's use.

[0024] The mold also includes a screw fixing bracket 4, which is generally square in shape. Its top surface connects to the center of the bottom surface of the base plate. Four limiting sleeves 41 extend from its bottom surface. These limiting sleeves 41 are positioned on each of the four sides of the bracket, with each pair corresponding to the other. These limiting sleeves 41 mate with the limiting grooves 21 on the bidirectional screw 2. The upper and lower parts of the limiting sleeves 41 are separately mounted and connected by screws. The upper and lower parts of the limiting sleeves 41 can be disassembled to facilitate installation of the double-ended screw.

[0025] The limiting sleeves 41 are opposite to each other in pairs and match the limiting grooves 21 on the bidirectional lead screw 2, so as to fix the position of the bidirectional lead screw 2 and enable it to rotate only.

[0026] Both ends of the bidirectional screw 2 are equipped with hand wheels 3, which facilitate rotating the bidirectional screw 2 to separate the side plates 1.

[0027] A table 5 is provided below the mold. The table 5 is square, and the side length of the table 5 is less than or equal to the length of the bidirectional screw 2. The side length of the table 5 is not greater than the length of the bidirectional screw 2, so that the position of the hand wheel 3 does not conflict with the table 5.

[0028] The upper surface of the table 5 is provided with a cross-shaped slide 51, and the bottom of the side plate 1 is provided with a raised slide 12. The position of the side plate 1 is limited during demoulding to prevent deflection from affecting the rotation of the screw.

[0029] The steps of using this embodiment are as follows:

[0030] ① Turn the hand wheels 3 on both sides forward to make the left and right side plates 1 fit tightly with the bottom plate;

[0031] ② Turn the hand wheels 3 on both sides forward to make the front and rear side panels 1, the bottom plate and the left and right side panels 1 fit tightly together;

[0032] ③Put the concrete sample into the cavity after the assembly is completed;

[0033] ④The concrete sample is completely dry;

[0034] ⑤Turn the front and rear, left and right hand wheels 3 in reverse order to separate the front and rear side panels 1, and the left and right side panels 1 from the concrete sample in turn;

[0035] ⑥Take out the concrete sample and the demoulding of the concrete sample is completed;

[0036] ⑦Cleaning device.

[0037] Example 2: Example 2 is basically the same as Example 1, and the similarities are not repeated here. The difference is that the upper surface of the table 5 is provided with a cross-shaped slide 51, and the bottom of the side panel 1 is provided with a pulley. The pulley can move along the slide 51, making the demoulding process easier.

[0038] The two ends of the bidirectional screw 2 are not provided with hand wheels 3, but are provided with synchronous motors, which can provide greater torque during demoulding.

Claims

1. A concrete sample mold that is easy to demould, characterized in that: It includes a bottom plate, a side plate and a bidirectional screw; there are four side plates, which are arranged around the square bottom plate, and the adjacent two side plates cooperate with each other; the square bottom plate is horizontally arranged in the middle of the side plate; a threaded hole is opened in the middle and lower part of the side plate, and there are two bidirectional screws, which match the threaded holes of the two opposite side plates respectively; the bidirectional screws are arranged vertically and horizontally, and the longitudinal bidirectional screw is arranged above the transverse bidirectional screw.

2. The concrete sample mold that is easy to demould according to claim 1, characterized in that: The middle part of the side plate is provided with a horizontal installation groove that matches the thickness of the bottom plate; the four sides of the bottom plate are respectively arranged in the installation grooves in the middle part of the four side plates.

3. The concrete sample mold that is easy to demould according to claim 1, characterized in that: The mold also includes a screw fixing frame, which is square in shape as a whole. The upper top surface is connected to the center of the lower surface of the base plate, and four limit sleeves extend from the lower bottom surface. The limit sleeves are respectively arranged on the four sides of the fixing frame, and the limit sleeves correspond to each other in pairs; the limit sleeves match the limit grooves on the bidirectional screw.

4. The concrete sample mold that is easy to demould according to claim 1, characterized in that: Hand wheels are installed at both ends of the bidirectional screw.

5. The concrete sample mold that is easy to demould according to claim 1, characterized in that: A table is provided below the mold, and the table is square, with a side length of the table ≤ the length of the bidirectional lead screw.

6. The concrete sample mold that is easy to demould according to claim 5, characterized in that: The upper surface of the table is provided with a cross-shaped sliding groove, and the bottom of the side plate is matched with a raised sliding platform.

7. The easy-to-remove concrete sample mold according to claim 5, characterized in that: The upper surface of the table is provided with a cross-shaped sliding groove, and the bottom of the side plate is matched with a pulley.

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