Concrete sampling device

Abstract

The utility model discloses a concrete sampling device which comprises a cylindrical shell, a movable bottom plate, four forming plates, a positioning screw rod, a stress application spring and a pressing plate mechanism, the cylindrical shell is a rectangular cylinder, a positioning clamping groove is formed in an opening of the bottom of the cylindrical shell, the movable bottom plate is arranged on the positioning clamping groove through the interior of the cylindrical shell, and the pressing plate mechanism is arranged on the movable bottom plate. The forming plates are vertically arranged plate bodies, the four forming plates define a rectangular cylinder to be arranged on the cylindrical shell, buckles are arranged at the connecting positions of the forming plates, one end of the screw is vertically arranged in the middle of the forming plates, the screw can rotate along the axis of the screw relative to the forming plates, screw holes are formed in the surfaces of the cylindrical shell, and the screw holes are in threaded connection with the screw. According to the utility model, quick demolding is realized by adopting a six-surface detachable structure, so that the adhesion of the whole structure is smaller, and the damage to the concrete test block is avoided.

Description

Technical Field

[0001] The utility model relates to the field of building experiments, in particular to a concrete sampling device. Background Art

[0002] The concrete test box is a tool for sampling poured concrete during the construction process. Concrete randomly taken from the construction site is placed in the test box, and the concrete is solidified in the test box through manual tamping, vibration, screeding and other steps to form concrete blocks of uniform size, which are used as samples for subsequent testing steps. After solidification, the test box is tightly attached to the concrete. Due to the dual reasons of bonding and negative air pressure, the concrete test block is very difficult to remove after reaching the required strength, which can easily cause damage to the test box or the concrete test block itself.

[0003] The utility model with publication number CN216050774U discloses a concrete sampling device, including a slide rail, a sampling mechanism slidably connected to the slide rail, the sampling mechanism including an outer shell, a sliding component arranged at the bottom of the outer shell and slidably connected to the slide rail, a material-dipping plate rotatably connected to the outer shell, and a driving mechanism connected to the outer shell and driving the material-dipping plate to rotate. This sampling device can divert materials into the interior of the outer shell and then transport the materials to a designated location for unloading, with high handling efficiency and fast speed.

[0004] This technical solution only solves the problem of ease of handling, but its demoulding is relatively difficult.

[0005] A concrete sampling device is now needed to solve the above problems. Utility Model Content

[0006] The utility model aims to solve the problem in the prior art that after solidification, the test mold box is tightly attached to the concrete, and the concrete test block is very difficult to take out after reaching the strength due to the dual reasons of bonding and negative air pressure, which easily causes damage to the test mold box or the concrete test block itself. A concrete sampling device is provided, which adopts a movable plate structure to solve the above problem.

[0007] The utility model provides a concrete sampling device, comprising a cylindrical shell, a movable bottom plate, four forming plates, four positioning screws, four force-adding springs and a pressure plate mechanism, wherein the cylindrical shell is a rectangular cylinder, a positioning slot is arranged at the bottom opening of the cylindrical shell, the movable bottom plate is arranged on the positioning slot through the inside of the cylindrical shell, the forming plate is a vertically arranged plate body, four forming plates form a rectangular cylinder arranged in the cylindrical shell, buckles are arranged at the connection of the forming plates, one end of the screw is vertically arranged in the middle of the forming plate, the screw can rotate along the screw axis relative to the forming plate, screw holes are arranged on each surface of the cylindrical shell, and the screw holes are threadedly connected with the screw.

[0008] The utility model discloses a concrete sampling device, as a preferred embodiment, a cylindrical shell comprises a rectangular tube, a first step hole, a second step hole, a stopper and four positioning screw holes, the first step hole and the second step hole are both rectangular holes, arranged inside the rectangular tube, the rectangular tube, the first step hole and the second step hole are coaxial, the side length of the first step hole is greater than that of the second step hole, the length of the first step hole is greater than that of the second step hole, the first step hole and the second step hole are connected and pass through the rectangular tube, the stopper is a rectangular positioning ring, the stopper is arranged on the transverse step surface at the connection position of the second step hole and the first step hole, the stopper is coaxial with the first step hole, the inner side length of the stopper is greater than that of the second step hole and less than that of the second step hole, the four positioning screw holes are respectively arranged on the four side plate surfaces of the rectangular tube, the positioning screw holes are through holes, passing through the inner cavity of the first step hole and the outer surface of the rectangular tube, and the four positioning screw holes are respectively arranged in the middle of the four inner side walls of the first step hole.

[0009] The concrete sampling device described in the utility model, as a preferred embodiment, the pressure plate mechanism includes a transverse long through hole, a spatula, a plurality of top blocks, a guide groove, a cover plate and a plurality of cover plate springs, the transverse long through hole is arranged on the surface of one side of the cylindrical shell, the lower edge line of the transverse long through hole is at the same height as the upper edge line of the forming plate, the length of the transverse long through hole is greater than the width of the forming plate, the quadrilateral formed by connecting the vertical projection end of the transverse long through hole and the vertical projection end of the guide groove covers the quadrilateral formed by the vertical projection of the forming plate in the buckled state, and the guide groove is arranged relative to the transverse long through hole. The inner surface of the plate surface opposite to the side plate surface of the cylindrical shell where the hole is located, the length, height and position of the guide groove all correspond to the transverse long through hole, the tip of the spatula passes through the transverse long through hole and is arranged in the guide groove, the spatula is provided with a limiting mechanism for clamping the cylindrical shell plate surface outside the transverse long through hole, the top block is a block, evenly arranged on the inner wall of the cylindrical shell, each top block has the same height, the height of the lower surface of the top block is higher than the height of the upper edge line of the transverse long through hole, the cover plate is arranged between the spatula and the top block, a cover plate spring is arranged between the top block and the cover plate, and the lower surface of the cover plate contacts the upper surface of the spatula.

[0010] The beneficial effects of the utility model are as follows:

[0011] (1) Using a spatula and cover plate structure, the overall surface is leveled after the spatula is leveled to make the specimen closer to the ideal model;

[0012] (2) The six-sided detachable structure is used to achieve rapid demoulding, which reduces the adhesion of the overall structure and avoids damage to the concrete specimen itself;

[0013] (3) The overall sampling device is modularized, and even if the test mold box is damaged, the parts can still be quickly replaced without affecting the overall use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of a concrete sampling device;

[0015] Figure 2 A schematic diagram of a cylindrical housing of a concrete sampling device;

[0016] Figure 3 This is a schematic diagram of the pressing plate mechanism of a concrete sampling device.

[0017] Reference numerals:

[0018] 1. Cylindrical shell; 11. Rectangular cylinder; 12. First step hole; 13. Second step hole; 14. Limit block; 15. Positioning screw hole; 2. Movable bottom plate; 3. Forming plate; 4. Positioning screw; 5. Force spring; 6. Pressing plate mechanism; 61. Horizontal long through hole; 62. Spatula; 63. Top block; 64. Guide groove; 65. Cover plate; 66. Cover plate spring. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Example 1

[0021] like Figure 1 As shown, a concrete sampling device includes a cylindrical shell 1, a movable bottom plate 2, four forming plates 3, four positioning screws 4, four force springs 5 ​​and a pressure plate mechanism 6. The cylindrical shell 1 is a rectangular cylinder 11 body, and a positioning slot is arranged at the bottom opening of the cylindrical shell 1. The movable bottom plate 2 is arranged on the positioning slot through the inside of the cylindrical shell 1. The forming plate 3 is a vertically arranged plate body. The four forming plates 3 form a rectangular cylinder 11 body and are arranged in the cylindrical shell 1. A buckle is arranged at the connection of the forming plates 3. One end of the screw is vertically arranged in the middle of the forming plate 3. The screw can rotate along the screw axis relative to the forming plate 3. Screw holes are arranged on each surface of the cylindrical shell 1, and the screw holes are threadedly connected with the screw.

[0022] like Figure 2As shown, the cylindrical shell 1 includes a rectangular tube 11, a first stepped hole 12, a second stepped hole 13, a stopper 14 and four positioning screw holes 15. The first stepped hole 12 and the second stepped hole 13 are both rectangular holes, which are arranged inside the rectangular tube 11. The rectangular tube 11, the first stepped hole 12 and the second stepped hole 13 are coaxial. The side length of the first stepped hole 12 is greater than that of the second stepped hole 13. The length of the first stepped hole 12 is greater than that of the second stepped hole 13. The first stepped hole 12 and the second stepped hole 13 are connected and pass through the rectangular tube 11. The stopper 14 It is a rectangular positioning ring, the limit block 14 is arranged on the transverse step surface at the connection position of the second step hole 13 and the first step hole 12, the limit block 14 is coaxial with the first step hole 12, the inner side length of the limit block 14 is greater than the side length of the second step hole 13 and less than the side length of the second step hole 13, four positioning screw holes 15 are respectively arranged on the four side plate surfaces of the rectangular tube 11, the positioning screw holes 15 are through holes, passing through the inner cavity of the first step hole 12 and the outer surface of the rectangular tube 11, and the four positioning screw holes 15 are respectively arranged in the middle of the four inner side walls of the first step hole 12.

[0023] like Figure 3 As shown, the pressing plate mechanism 6 includes a transverse long through hole 61, a spatula 62, a plurality of top blocks 63, a guide groove 64, a cover plate 65 and a plurality of cover plate springs 66. The transverse long through hole 61 is arranged on one side surface of the cylindrical shell 1. The lower edge line of the transverse long through hole 61 is at the same height as the upper edge line of the forming plate 3. The length of the transverse long hole is greater than the width of the forming plate 3. The quadrilateral formed by connecting the vertical projection end of the transverse long hole and the vertical projection end of the guide groove 64 covers the quadrilateral formed by the vertical projection of the forming plate 3 in the fastened state. The guide groove 64 is arranged on the plate surface opposite to the side plate surface of the cylindrical shell 1 where the transverse long through hole 61 is located. On the inner surface, the length, height and position of the guide groove 64 correspond to the transverse long through hole 61. The tip of the spatula 62 passes through the transverse long through hole 61 and is arranged in the guide groove 64. The spatula 62 is provided with a limiting mechanism for clamping the plate surface of the cylindrical shell 1 outside the transverse long through hole 61. The top block 63 is a block and is evenly arranged on the inner wall of the cylindrical shell 1. Each top block 63 has the same height, and the height of the lower surface of the top block 63 is higher than the height of the upper edge line of the transverse long through hole 61. The cover plate 65 is arranged between the spatula 62 and the top block 63. A cover plate spring 66 is arranged between the top block 63 and the cover plate 65, and the lower surface of the cover plate 65 contacts the upper surface of the spatula 62.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A concrete sampling device, characterized in that: The invention comprises a cylindrical shell (1), a movable bottom plate (2), four forming plates (3), four positioning screws (4), four force springs (5) and a pressure plate mechanism (6); the cylindrical shell (1) is a rectangular cylinder (11); a positioning slot is arranged at the bottom opening of the cylindrical shell (1); the movable bottom plate (2) is arranged on the positioning slot through the inside of the cylindrical shell (1); the forming plate (3) is a vertically arranged plate; the four forming plates (3) form a rectangular cylinder (11) and are arranged on the cylindrical shell (1); buckles are arranged at the connection of the forming plates (3); one end of the screw is vertically arranged in the middle of the forming plate (3); the screw can rotate along the screw axis relative to the forming plate (3); screw holes are arranged on each surface of the cylindrical shell (1); the screw holes are threadedly connected to the screw.

2. A concrete sampling device according to claim 1, characterized in that: The cylindrical shell (1) comprises a rectangular tube (11), a first stepped hole (12), a second stepped hole (13), a stopper (14) and four positioning screw holes (15); the first stepped hole (12) and the second stepped hole (13) are both rectangular holes arranged inside the rectangular tube (11); the rectangular tube (11), the first stepped hole (12) and the second stepped hole (13) are coaxial; the side length of the first stepped hole (12) is greater than that of the second stepped hole (13); the length of the first stepped hole (12) is greater than that of the second stepped hole (13); the first stepped hole (12) and the second stepped hole (13) are connected to and pass through the rectangular tube (11); the stopper (14) is provided at the bottom of the cylindrical shell (11); The second stepped hole (13) and the first stepped hole (12) are connected to each other at a position that the second stepped hole (13) and the first stepped hole (12) are connected. The limit block (14) is coaxial with the first stepped hole (12). The inner side length of the limit block (14) is greater than the side length of the second stepped hole (13) and less than the side length of the second stepped hole (13). The four positioning screw holes (15) are respectively arranged on the four side plate surfaces of the rectangular tube (11). The positioning screw holes (15) are through holes that pass through the inner cavity of the first stepped hole (12) and the outer surface of the rectangular tube (11). The four positioning screw holes (15) are respectively arranged in the middle of the four inner side walls of the first stepped hole (12).

3. A concrete sampling device according to claim 2, characterized in that: The pressure plate mechanism (6) comprises a transverse long through hole (61), a spatula (62), a plurality of top blocks (63), a guide groove (64), a cover plate (65) and a plurality of cover plate springs (66); the transverse long through hole (61) is arranged on a side surface of the cylindrical shell (1); the lower edge line of the transverse long through hole (61) is at the same height as the upper edge line of the forming plate (3); the length of the transverse long through hole (61) is greater than the width of the forming plate (3); the quadrilateral formed by connecting the vertical projection end of the transverse long through hole (61) and the vertical projection end of the guide groove (64) covers the quadrilateral formed by the vertical projection of the forming plate (3) in a fastened state; the guide groove (64) is arranged on the inner surface of the plate surface opposite to the side plate surface of the cylindrical shell (1) where the transverse long through hole (61) is located; the guide groove (64) is arranged on the inner surface of the plate surface opposite to the side plate surface of the cylindrical shell (1) where the transverse long through hole (61) is located; The length, height and position of the groove (64) all correspond to the transverse long through hole (61); the tip of the spatula (62) passes through the transverse long through hole (61) and is arranged in the guide groove (64); the spatula (62) is provided with a limiting mechanism for clamping the plate surface of the cylindrical shell (1) outside the transverse long through hole (61); the top block (63) is a block and is evenly arranged on the inner wall of the cylindrical shell (1); each of the top blocks (63) has the same height; the height of the lower surface of the top block (63) is higher than the height of the upper edge line of the transverse long through hole (61); the cover plate (65) is arranged between the spatula (62) and the top block (63); the cover plate spring (66) is arranged between the top block (63) and the cover plate (65); the lower surface of the cover plate (65) contacts the upper surface of the spatula (62).

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