Construction site concrete test block molding portable vibrating table

Abstract

The utility model discloses a kind of portable vibrating table of construction site concrete test block molding, belong to concrete test block molding technical field.A kind of portable vibrating table of construction site concrete test block molding, including the placement table for placing mould box and the fixed component for being hingedly placed in the side of placement table for fixing mould box, the clamping assembly for clamping vibrating rod is provided in the lower surface of placement table, and the vibrating rod is used to make placement table vibrate;The utility model is by being provided with clamping assembly, under the cooperation of pressurizing component and partial pressure component, make clamping assembly to the vibrating rod of construction site clamping fixation, and upper clamping plate and lower clamping plate are all-around wrapping to vibrating rod, more convenient to transfer vibration, use field concrete vibrating rod cooperates portable vibrating table operation, can efficiently, standardization carry out concrete compressive strength test piece molding, construction is fast, convenient, easy to operate.

Description

Technical Field

[0001] This utility model relates to the field of concrete test block molding technology, and in particular to a portable vibration table for molding concrete test blocks on construction sites. Background Technology

[0002] The concrete compressive strength test uses cubic specimens with a side length of 150mm. The compressive strength is measured at 100m³ / group, with three specimens per group. The specification stipulates two methods for forming concrete specimens. The first method uses a vibrating table or vibrator. When vibrating, the concrete mixture can be poured into the mold all at once. The vibration time on the vibrating table should not exceed 30s. Vibration should continue until the concrete surface shows slurry and no large air bubbles overflow, then stop immediately. If using a vibrator, it should be inserted vertically and avoid contact with the mold. The thickness of each filling should not exceed 200mm. After filling, the material should not be piled too high above the mold opening. Material should be added while vibrating, and the test should stop when the surface is leveled. The second method involves manual tamping with a tamping rod. The concrete mix should be layered into the mold, with each layer having approximately equal thickness, not exceeding 100mm. Tamping should be done evenly from the edge to the center in a spiral direction. The tamping rod should be kept vertical during tamping. When tamping the bottom layer, the tamping rod should reach the bottom surface of the mold; when tamping the upper layer, the tamping rod should penetrate to the lower layer (20-30mm). Each layer should be tamped 25 times until it is compacted. Finally, a trowel should be inserted several times along the inner wall of the mold, or a rubber mallet should be used to evenly tap the side wall of the mold until no large air bubbles overflow and the tamping marks disappear. Then, use a trowel to smooth the surface.

[0003] Concrete samples are taken from the outlet of the mixing plant for concrete compressive strength specimen molding. The two methods mentioned above can be used. However, on-site molding is difficult due to factors such as the large size of the equipment and limited space, making it impossible to place instruments like vibrating tables. Therefore, the second method, manual tamping with a tamping rod, is necessary. Manual tamping is time-consuming and involves many human factors, making it less efficient and standardized than using a vibrating table. Using existing on-site vibrating rods is impractical because current concrete specimen molds are made of plastic, which is difficult to control and easily damages. Therefore, there is an urgent need for a compact, easy-to-operate, and convenient specimen molding vibration device for on-site use. Utility Model Content

[0004] The purpose of this utility model is to solve the problems in the prior art by proposing a portable vibration table for molding concrete test blocks at construction sites.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A portable vibration table for forming concrete test blocks on construction sites includes a placement platform for placing a mold box and a fixing component hinged to the side of the placement platform for fixing the mold box. The lower surface of the placement platform is provided with a clamping component for clamping a vibrating rod, which is used to cause the placement platform to vibrate.

[0007] In some embodiments, the fixing assembly includes a pressure frame hinged to the side of the placement platform and a plurality of pressure blocks fixed to the side of the pressure frame facing the mold box, the plurality of pressure blocks being located on both sides of the pressure frame.

[0008] In some embodiments, the clamping assembly includes an upper clamping plate fixed to the lower surface of the placement platform and a lower clamping plate disposed below the upper clamping plate, the lower clamping plate sliding on the lower surface of the upper clamping plate via a plurality of sliding rods.

[0009] In some embodiments, the upper and lower clamps are combined and closely adhere to the surface of the vibrator, and the upper and lower clamps completely enclose the vibrator.

[0010] In some embodiments, the lower clamping plate cooperates with the upper clamping plate through a pressure-applying assembly and a pressure-distributing assembly to clamp the vibratory rod. The pressure-distributing assembly includes two connecting rods hinged to the lower surface of the placement platform and pressure rollers rotating at the lower ends of the two connecting rods. The pressure rollers are located below the clamping assembly. There are multiple sets of pressure rollers, which are evenly spaced on the lower surface of the placement platform.

[0011] In some embodiments, the pressurizing assembly includes a connecting frame that slides laterally below the placement platform and a plurality of push rods that are symmetrically fixed inside the connecting frame. The plurality of push rods respectively abut against the surfaces of the plurality of connecting rods, and the connecting frame slides on the lower surface of the placement platform via two guide rails.

[0012] In some embodiments, a limiting component for preventing the pressurizing component from loosening is provided below the placement platform. The limiting component includes a first stop fixed to the upper surface of one end of the connecting frame and a second stop sliding vertically on the surface of the placement platform. The upper end of the second stop penetrates the upper surface of the placement platform. The first stop and the second stop cooperate with each other. A tension spring for driving the second stop to slide upward is fixed on the surface of the second stop.

[0013] In some embodiments, a plurality of support rods are symmetrically fixed on the lower surface of the placement platform, and a plurality of support springs are respectively sleeved on the surface of the plurality of support rods, with a base fixed to the lower end of the plurality of support springs.

[0014] In some embodiments, leveling feet are provided at the four corners of the base.

[0015] Compared with the prior art, the present invention provides a portable vibration table for molding concrete test blocks on construction sites, which has the following beneficial effects.

[0016] 1. This utility model, by setting up a clamping component, in cooperation with the pressure-applying component and the pressure-distributing component, enables the clamping component to clamp and fix the vibrator at the construction site. The upper and lower clamping plates fully enclose the vibrator, making it easier to transmit vibration. Using the on-site concrete vibrator in conjunction with a portable vibration table, concrete compressive strength test specimens can be formed efficiently and in a standardized manner. Construction is quick, convenient, and easy to operate.

[0017] 2. This utility model limits the position of the connecting frame by setting a limiting component, thereby preventing the vibration from causing the vibrator to loosen. By setting a fixing component, the mold box is pressed tightly onto the surface of the placement table, thereby transmitting vibration more effectively.

[0018] Other advantages, objectives and features of this invention will be set forth in part in the description which follows; and in part will be apparent to those skilled in the art upon examination of the following description; or may be taught from practice of this invention. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the axial structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the structure of this utility model from a bottom view.

[0021] Figure 3 This is a schematic diagram of the placement platform in this utility model.

[0022] Figure 4 This is a bottom view of the placement platform in this utility model.

[0023] Figure 5 This is a schematic diagram of the clamping component in this utility model.

[0024] Figure 6 This is an exploded structural diagram of the pressurization component in this utility model.

[0025] Figure 7 This utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0026] In the picture:

[0027] 1. Placement platform; 101. Support rod; 102. Support spring; 103. Base; 2. Mold box; 3. Fixing assembly; 301. Pressure frame; 302. Pressure block; 4. Clamping assembly; 401. Upper clamping plate; 402. Lower clamping plate; 403. Slide rod; 5. Vibrator; 6. Pressure distribution assembly; 601. Connecting rod; 602. Pressure roller; 7. Pressurizing assembly; 701. Connecting frame; 702. Push rod; 703. Guide rail; 704. Threaded column; 8. Limiting assembly; 801. First stop block; 802. Second stop block; 803. Tension spring; 9. Leveling support foot. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] Reference Figure 1-7 A portable vibration table for forming concrete test blocks on construction site includes a placement platform 1 for placing a mold box 2 and a fixing component 3 hinged to the side of the placement platform 1 for fixing the mold box 2. A clamping component 4 for clamping a vibrating rod 5 is provided on the lower surface of the placement platform 1. The vibrating rod 5 is used to make the placement platform 1 vibrate.

[0030] Multiple support rods 101 are symmetrically fixed on the lower surface of the placement platform 1. Multiple support springs 102 are respectively sleeved on the surface of the multiple support rods 101. A base 103 is fixed to the lower end of the multiple support springs 102.

[0031] The upper surface of the placement platform 1 is provided with a cavity for storing the mold box 2. The fixing component 3 includes a pressure frame 301 hinged to the side of the placement platform 1 and a plurality of pressure blocks 302 fixed to the side of the pressure frame 301 facing the mold box 2. The plurality of pressure blocks 302 are located on both sides of the pressure frame 301. After the pressure frame 301 abuts against the surface of the mold box 2 through the plurality of pressure blocks 302, it is fixed to the surface of the placement platform 1 by two bolts.

[0032] It is understandable that by setting up the placement platform 1, it is convenient to place the mold box 2. The mold box 2 is tightly attached to the surface of the placement platform 1 by the pressure frame 301 and multiple pressure blocks 302, so that the placement platform 1 can effectively transmit vibration to the surface of the mold box 2. Under the action of the clamping component 4, the vibrator 5 is fixed to the lower surface of the placement platform 1, so that the vibrator 5 acts as a vibration source and transmits it to the placement platform 1 and the mold box 2, thereby vibrating and molding the concrete test block. Using the vibrator 5 on the construction site in conjunction with the portable vibration table, the molding of concrete compressive strength test specimens can be carried out efficiently and in a standardized manner. The construction is quick, convenient and simple to operate.

[0033] Specifically, the clamping assembly 4 includes an upper clamping plate 401 fixed to the lower surface of the placement platform 1 and a lower clamping plate 402 disposed below the upper clamping plate 401. Multiple sliding rods 403 are fixed on the upper surface of the lower clamping plate 402. The lower clamping plate 402 slides on the lower surface of the upper clamping plate 401 through the multiple sliding rods 403. After the upper clamping plate 401 and the lower clamping plate 402 are combined, they are in close contact with the surface of the vibrating rod 5. The upper clamping plate 401 and the lower clamping plate 402 completely wrap around the vibrating rod 5. The lower clamping plate 402 clamps the vibrating rod 5 in cooperation with the upper clamping plate 401 through the pressure-applying assembly 7 and the pressure-distributing assembly 6.

[0034] The pressure dividing assembly 6 includes two connecting rods 601 hinged to the lower surface of the placement platform 1 and pressure rollers 602 rotating at the lower ends of the two connecting rods 601. The two connecting rods 601 are located on both sides of the clamping assembly 4, and the pressure rollers 602 are located below the clamping assembly 4. There are multiple sets of pressure rollers 602, which are evenly spaced on the lower surface of the placement platform 1.

[0035] The pressurizing component 7 includes a connecting frame 701 that slides laterally below the placement platform 1 and multiple push rods 702 that are symmetrically fixed inside the connecting frame 701. The multiple push rods 702 abut against the surfaces of multiple connecting rods 601 respectively. The connecting frame 701 is U-shaped and located around the clamping component 4. Two guide rails 703 are fixed on the lower surface of the placement platform 1. The connecting frame 701 slides on the surfaces of the two guide rails 703. A threaded post 704 is threadedly connected to the lower surface of the placement frame. One end of the threaded post 704 rotates at the closed end of the connecting frame 701, and a handwheel is fixed at the other end of the threaded post 704.

[0036] It is understandable that by turning the handwheel, the threaded column 704 is driven to rotate on the surface of the placement frame, thereby causing the threaded column 704 to push the connecting frame 701 to move. The connecting frame 701 then pushes multiple connecting rods 601 to rotate synchronously through multiple push rods 702, thereby causing multiple pressure rollers 602 to simultaneously squeeze the lower clamping plate 402. Under the action of multiple pressure rollers 602, the pressure is evenly distributed on the surface of the lower clamping plate 402, thereby clamping and fixing the vibrator 5 with the lower clamping plate 402 and the upper clamping plate 401, and wrapping the vibrator 5 in all directions, so that the vibration of the vibrator 5 is effectively transmitted to the surface of the placement platform 1 and the mold box 2.

[0037] Specifically, a limiting component 8 is provided below the placement platform 1 to prevent the threaded post 704 from loosening. The limiting component 8 includes a first stop 801 fixed to the upper surface of the connecting frame 701 near the threaded post 704 and a second stop 802 that slides vertically on the surface of the placement platform 1. The upper end of the second stop 802 penetrates the upper surface of the placement platform 1. The first stop 801 and the second stop 802 cooperate with each other. A tension spring 803 is fixed on the surface of the second stop 802 to drive the second stop 802 to slide upward. The upper end of the tension spring 803 is fixed to the upper surface of the placement platform 1.

[0038] Understandably, when the threaded column 704 drives the connecting frame 701 to push the connecting rod 601, the connecting frame 701 drives the first stop 801 to approach the second stop 802. After the pressure roller 602 presses against the lower clamping plate 402, the first stop 801 passes over the second stop 802. After the mold box 2 is placed on the surface of the placement table 1, the mold box 2 presses the second stop 802 downward, causing the second stop 802 to block the first stop 801, preventing the first stop 801 and the connecting frame 701 from sliding towards the threaded column 704, thereby avoiding [further issues]. During the vibration of the vibrator 5, the threaded column 704 becomes loose. By pressing the second stop 802 with the mold box 2, the separation of the second stop 802 from the first stop 801 can be effectively prevented, thus preventing the limit from failing. When it is necessary to disassemble the vibrator 5, the vibration work has been completed. The mold box 2 is removed from the surface of the placement platform 1. Under the action of the tension spring 803, the second stop 802 is slid upward, thereby moving the second stop 802 away from the first stop 801, allowing the first stop 801 and the connecting frame 701 to slide towards the threaded column 704.

[0039] Specifically, the base 103 is provided with leveling feet 9 at the four corners. Each leveling foot 9 includes a screw threaded to the surface of the base 103 and a support plate fixed to the lower end of the screw. A rotating handle is fixed to the upper end of the screw.

[0040] Understandably, since the ground at the construction site is uneven, leveling feet 9 are installed to facilitate leveling of the platform 1, ensuring it is in a horizontal position. By rotating the handle, the screw rotates on the surface of the base 103, thereby adjusting the height of each corner of the base 103 with the support plate, and making horizontal adjustment with the assistance of a level.

[0041] In this invention, during use, it is placed on the construction site and leveled using the leveling feet 9. The vibrator 5 used on site is installed under the placement platform 1 and placed between the upper clamping plate 401 and the lower clamping plate 402. By turning the handwheel, the threaded column 704 pushes the connecting frame 701 to move on the surface of the guide rail 703, causing the connecting frame 701 to push multiple connecting rods 601 to rotate synchronously through multiple push rods 702. This causes multiple pressure rollers 602 to simultaneously squeeze the lower clamping plate 402. Under the action of multiple pressure rollers 602, the pressure is evenly distributed on the surface of the lower clamping plate 402, thereby clamping and fixing the vibrator 5 between the lower clamping plate 402 and the upper clamping plate 401, and completely wrapping the vibrator 5. This allows the vibration of the vibrator 5 to be effectively transmitted to the surface of the placement platform 1 and the mold box 2. The mold box 2 filled with concrete is then placed on the platform. On the surface of the placement platform 1, the mold box 2 presses the second stop 802 downward, so that the second stop 802 blocks the first stop 801, thereby preventing the threaded column 704 from loosening during the vibration of the vibrator 5. The mold box 2 is pressed tightly against the surface of the placement platform 1 by the pressure frame 301 and multiple pressure blocks 302. The vibrator 5 works, so that the vibrator 5 acts as a vibration source and transmits the vibration to the placement platform 1 and the mold box 2, thereby causing the concrete test block to vibrate and form. After that, the mold box 2 is removed. After all the concrete test blocks are formed, the mold box 2 is removed from the surface of the placement platform 1. Under the action of the tension spring 803, the second stop 802 is driven to slide upward, so that the second stop 802 moves away from the first stop 801, allowing the first stop 801 and the connecting frame 701 to slide towards the threaded column 704. After the lower clamp 402 is released, the vibrator 5 is taken out.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0043] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples; although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A portable vibration table for molding concrete test blocks at construction sites, characterized in that, It includes a placement platform (1) for placing the mold box (2) and a fixing component (3) hinged to the side of the placement platform (1) for fixing the mold box (2). The lower surface of the placement platform (1) is provided with a clamping component (4) for clamping a vibrating rod (5), which is used to make the placement platform (1) vibrate.

2. The portable vibration table for forming concrete test blocks at construction sites according to claim 1, characterized in that, The fixing component (3) includes a pressure frame (301) hinged to the side of the placement platform (1) and a plurality of pressure blocks (302) fixed to the side of the pressure frame (301) facing the mold box (2), with the plurality of pressure blocks (302) located on both sides of the pressure frame (301).

3. The portable vibration table for forming concrete test blocks on construction sites according to claim 1, characterized in that, The clamping assembly (4) includes an upper clamping plate (401) fixed to the lower surface of the placement platform (1) and a lower clamping plate (402) disposed below the upper clamping plate (401). The lower clamping plate (402) slides on the lower surface of the upper clamping plate (401) via multiple sliding rods (403).

4. A portable vibrating table for forming concrete test blocks on construction sites according to claim 3, characterized in that, The upper clamp (401) and lower clamp (402) are combined and closely adhere to the surface of the vibrator (5), and the upper clamp (401) and lower clamp (402) completely wrap the vibrator (5).

5. A portable vibrating table for forming concrete test blocks on construction sites according to claim 3, characterized in that, The lower clamping plate (402) clamps the vibrating rod (5) in cooperation with the upper clamping plate (401) through the pressure assembly (7) and the pressure distribution assembly (6). The pressure distribution assembly (6) includes two connecting rods (601) hinged to the lower surface of the placement platform (1) and a pressure roller (602) rotating at the lower end of the two connecting rods (601). The pressure roller (602) is located below the clamping assembly (4). There are multiple sets of pressure rollers (602), which are evenly spaced on the lower surface of the placement platform (1).

6. A portable vibrating table for forming concrete test blocks at construction sites according to claim 5, characterized in that, The pressurizing assembly (7) includes a connecting frame (701) that slides laterally below the placement platform (1) and a plurality of push rods (702) that are symmetrically fixed inside the connecting frame (701). The plurality of push rods (702) respectively abut against the surfaces of the plurality of connecting rods (601). The connecting frame (701) slides on the lower surface of the placement platform (1) via two guide rails (703).

7. A portable vibrating table for forming concrete test blocks on construction sites according to claim 6, characterized in that, Below the placement platform (1) is a limiting component (8) for preventing the pressurizing component (7) from loosening. The limiting component (8) includes a first stop (801) fixed to the upper surface of one end of the connecting frame (701) and a second stop (802) sliding vertically on the surface of the placement platform (1). The upper end of the second stop (802) penetrates the upper surface of the placement platform (1). The first stop (801) and the second stop (802) cooperate with each other. A tension spring (803) is fixed on the surface of the second stop (802) for driving the second stop (802) to slide upward.

8. A portable vibrating table for forming concrete test blocks on construction sites according to claim 1, characterized in that, The lower surface of the placement platform (1) is symmetrically fixed with multiple support rods (101), and multiple support springs (102) are respectively sleeved on the surface of the multiple support rods (101). The lower end of the multiple support springs (102) is fixed with a base (103).

9. A portable vibration table for forming concrete test blocks at construction sites according to claim 1, characterized in that, The base (103) is provided with leveling feet (9) at each of its four corners.

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