Positioning device of concrete press

Abstract

The utility model discloses a positioning device of a concrete press, which comprises a mounting plate, a press base and a bottom plate, four groups of positioning plates are movably arranged above the bottom plate, and two groups of positioning components for driving the four groups of positioning plates to push concrete to the center point of the bottom plate are arranged in the press base; the positioning assembly comprises a connecting rod, a sliding plate, a traction rod, a rotating plate and a driving module used for providing power, the connecting rod is fixedly connected with the side, away from the traction rod, of the sliding plate, and the traction rod is rotationally arranged on the upper surface of the sliding plate. The driving module drives one set of connecting rods to move, the connecting rods drive the corresponding sliding plates to move, the sliding plates drive the rotating plates to rotate through the traction rods, and the rotating plates drive the other set of traction rods to rotate, so that the other set of sliding plates and the connecting rods are driven to move, and the two sets of positioning plates are driven to synchronously move towards the center point of the bottom plate. Therefore, the concrete is pushed to the center point of the bottom plate, and the accuracy of test results of the press is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete presses, in particular to a positioning device for a concrete press. Background Art

[0002] Concrete press is a kind of testing equipment used to test the compressive strength of building material test blocks such as concrete, cement, high-strength bricks, refractory materials, etc. It can also be used to test the compressive strength of other non-metallic materials. It mainly includes the main machine, hydraulic system, force measuring unit and electrical system. When the concrete press is used, the staff needs to place the concrete test block on the lower platen, and the staff also needs to move the concrete test block to the center position of the upper platen based on experience to ensure the accuracy of the concrete test block compression test. However, placing the concrete test block based on the staff's experience not only requires long-term practice to have a high level of proficiency, but also placing the concrete test block based on feel can easily lead to inaccurate placement of the concrete test block. Once the position of the concrete test block is inaccurate, it will easily affect the accuracy of the test results;

[0003] For example, patent announcement number CN202869887U discloses a device for positioning concrete test blocks in a press, which is composed of a lower pressing plate, a positioning block mounted on the lower pressing plate, a fixing frame connected to the outer side of the two positioning blocks, a connecting plate mounted on the outer end of the fixing frame, and the connecting plate is fixedly connected to the lower pressing plate. Due to the implementation of the above technical solution, the utility model can determine the accurate placement position of the concrete test block on the lower pressing plate of the press, improve detection efficiency, and reduce data errors;

[0004] The above patent still has some problems when in use. The positioning device can only be applied to concrete of a single size. When the size of the concrete changes, it cannot be guaranteed that the concrete is in the center position of the upper platen, which leads to deviations in the test results. Therefore, we need to propose a positioning device for a concrete press. Utility Model Content

[0005] The purpose of the utility model is to provide a positioning device for a concrete press, which drives four groups of positioning plates to move toward the center point of the bottom plate through the positioning group, thereby pushing the concrete on the upper surface of the bottom plate to the center point of the bottom plate, thereby ensuring that the concrete is located at the center point of the upper pressing plate, so as to ensure the accuracy of the test results and solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning device for a concrete press, comprising a mounting plate, a press base and a bottom plate, four groups of positioning plates are movably arranged above the bottom plate, and two groups of positioning components are arranged inside the press base for driving the four groups of positioning plates to push concrete to the center point of the bottom plate;

[0007] The positioning assembly includes a connecting rod, a sliding plate, a traction rod, a rotating plate and a driving module for providing power. The connecting rod is fixedly connected to a side of the sliding plate away from the traction rod. The traction rod is rotatably arranged on the upper surface of the sliding plate. The connecting rod, the sliding plate and the traction rod are each provided in two groups. The two groups of the connecting rod, the sliding plate and the traction rod are symmetrically arranged on both sides of the rotating plate.

[0008] Preferably, the positioning assembly also includes a fixed plate, a connecting plate and a rotating column, and the connecting plates are provided in two groups. The two groups of connecting plates are fixedly installed on the inner wall of the press base, the fixed plate is fixedly installed on the corresponding surfaces of the two groups of connecting plates, the rotating column is fixedly installed on the upper surface of the fixed plate, and the rotating plate is rotatably arranged on the top of the rotating column.

[0009] Preferably, two groups of snap-fitting protrusions are provided on the lower surfaces of the two groups of sliding plates, and sliding grooves corresponding to the snap-fitting protrusions are provided on the upper surfaces of the two groups of connecting plates.

[0010] Preferably, one end of the traction rod is rotatably disposed on the center point of the upper surface of the sliding plate, and the other end of the traction rod is rotatably disposed on the upper surface of the rotating plate.

[0011] Preferably, the driving module includes a support plate and a hydraulic push rod, and the support plate and the hydraulic push rod are each provided with two groups, the two groups of support plates are fixedly mounted on the upper surface of the mounting plate, the bottom ends of the two groups of hydraulic push rods are mounted on the sides of the fixed support plates, and the working ends of the two groups of hydraulic push rods are respectively fixedly connected to the two adjacent connecting rods.

[0012] Preferably, a partition is fixedly installed inside the press base, and the partition is located on the corresponding surfaces of the two groups of positioning components. Four groups of connecting rods are provided, and the four groups of connecting rods slide through the corresponding side walls of the press base.

[0013] Preferably, the press base is fixedly mounted on the upper surface of the mounting plate, the bottom plate is arranged on the upper surface of the press base, and several groups of the connecting rods are not in contact with the bottom plate.

[0014] Preferably, a plurality of groups of positioning columns are arranged on the upper surface of the press base, upper pressure plates are slidably arranged on the outer arc surfaces of the plurality of groups of positioning columns, a hydraulic rod is fixedly arranged on the top of the upper pressure plate, and a pressure test column is arranged on the lower surface of the upper pressure plate.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model drives a group of connecting rods to move through a driving module, and the connecting rods drive corresponding sliding plates to move. The sliding plates drive rotating plates to rotate through traction rods, and the rotating plates drive another group of traction rods to rotate, thereby driving another group of sliding plates and connecting rods to move, thereby driving two groups of positioning plates to move synchronously toward the center point of the bottom plate, thereby pushing concrete to the center point of the bottom plate, thereby ensuring the accuracy of the press test results.

[0017] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the invention. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the press base of the utility model;

[0020] Figure 3 This is a front view of the overall structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the positioning component of the utility model;

[0022] Figure 5 For this utility model Figure 4 Enlarged view of point A in the middle.

[0023] In the figure: 1. Mounting plate; 2. Support plate; 3. Press base; 4. Bottom plate; 5. Upper pressure plate; 6. Hydraulic rod; 7. Positioning column; 8. Partition plate; 9. Hydraulic push rod; 10. Positioning plate; 11. Connecting rod; 12. Pressure test column; 13. Fixed plate; 14. Connecting plate; 15. Sliding plate; 16. Traction rod; 17. Rotating plate; 18. Rotating column; 19. Sliding groove; 20. Snap-in protrusion. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model provides: a positioning device for a concrete press, such as Figure 1-5As shown, it includes a mounting plate 1, a press base 3 and a bottom plate 4, four groups of positioning plates 10 are movably arranged above the bottom plate 4, and two groups of positioning components are arranged inside the press base 3 for driving the four groups of positioning plates 10 to push the concrete to the center point of the bottom plate 4;

[0026] The positioning assembly includes a connecting rod 11, a sliding plate 15, a traction rod 16, a rotating plate 17 and a driving module for providing power. The connecting rod 11 is fixedly connected to a side of the sliding plate 15 away from the traction rod 16. The traction rod 16 is rotatably arranged on the upper surface of the sliding plate 15. The connecting rod 11, the sliding plate 15 and the traction rod 16 are each provided with two groups, and the two groups of connecting rods 11, the sliding plate 15 and the traction rod 16 are symmetrically arranged on both sides of the rotating plate 17.

[0027] The positioning assembly also includes a fixed plate 13, a connecting plate 14 and a rotating column 18. There are two groups of connecting plates 14. The two groups of connecting plates 14 are fixedly installed on the inner wall of the press base 3. The fixed plate 13 is fixedly installed on the corresponding surfaces of the two groups of connecting plates 14. The rotating column 18 is fixedly installed on the upper surface of the fixed plate 13, and the rotating plate 17 is rotatably set on the top of the rotating column 18. The fixed plate 13 is fixedly installed inside the press base 3 through the two groups of connecting plates 14, and the fixed plate 13 is located on the side of the two groups of connecting plates 14, and the fixed plate 13 is not higher than the connecting plate 14 to prevent the fixed plate 13 from affecting the movement of the sliding plate 15.

[0028] Two groups of snap-fitting protrusions 20 are provided on the lower surfaces of the two groups of sliding plates 15, and sliding grooves 19 corresponding to the snap-fitting protrusions 20 are opened on the upper surfaces of the two groups of connecting plates 14. The snap-fitting protrusions 20 at the bottom of the sliding plate 15 are snapped into the sliding grooves 19, and the snap-fitting protrusions 20 are set as convex blocks, thereby ensuring that the sliding plate 15 can only move in a straight line along the sliding grooves 19.

[0029] One end of the traction rod 16 is rotatably set at the center point of the upper surface of the sliding plate 15, and the other end of the traction rod 16 is rotatably set at the upper surface of the rotating plate 17. When the sliding plate 15 moves, the traction rod 16 is driven to rotate. While the traction rod 16 rotates, it drives the rotating plate 17 to rotate at the top of the rotating column 18 through displacement, thereby driving another group of traction rods 16 to rotate at the same angle through the rotating plate 17, and then driving another group of sliding plates 15 to move the same distance, thereby ensuring that the two groups of sliding plates 15 can push the concrete to the center point of the bottom plate 4.

[0030] The driving module includes a support plate 2 and a hydraulic push rod 9. The support plate 2 and the hydraulic push rod 9 are each provided with two groups. The two groups of support plates 2 are fixedly mounted on the upper surface of the mounting plate 1. The bottom ends of the two groups of hydraulic push rods 9 are mounted on the fixed sides of the support plate 2, and the working ends of the two groups of hydraulic push rods 9 are respectively fixedly connected to the two adjacent connecting rods 11. The two groups of positioning components are respectively provided with a group of driving modules. First, one group of hydraulic push rods 9 is started to drive the two groups of positioning plates 10 to push the concrete. When the two groups of positioning plates 10 are retracted, another group of hydraulic push rods 9 is started to drive the other two groups of positioning plates 10 to push the concrete, thereby ensuring that the concrete is pushed in the four directions of front, back, left and right, thereby ensuring that the concrete is located at the center point of the bottom plate 4, further ensuring the accuracy of the press test.

[0031] A partition 8 is fixedly installed inside the press base 3, and the partition 8 is located on the corresponding surfaces of the two groups of positioning components. Four groups of connecting rods 11 are provided, and the four groups of connecting rods 11 slide through the corresponding side walls of the press base 3. The partition 8 is provided to support one group of positioning components while preventing the two groups of positioning components from contacting and scratching each other.

[0032] The press base 3 is fixedly mounted on the upper surface of the mounting plate 1, the bottom plate 4 is arranged on the upper surface of the press base 3, and several groups of connecting rods 11 are not in contact with the bottom plate 4. The connecting rods 11 are provided with a concave shape, and the concave shape wraps the bottom plate 4 and part of the press base 3, thereby ensuring that the connecting rods 11 can push the positioning plate 10 to move toward the center point of the bottom plate 4.

[0033] A plurality of groups of positioning columns 7 are arranged on the upper surface of the press base 3, and an upper pressing plate 5 is slidingly arranged on the outer arc surface of the plurality of groups of positioning columns 7. A hydraulic rod 6 is fixedly arranged on the top of the upper pressing plate 5, and a pressure test column 12 is arranged on the lower surface of the upper pressing plate 5. The pressure test column 12 is located just above the center point of the bottom plate 4. When the hydraulic rod 6 is started, the upper pressing plate 5 and the pressure test column 12 are driven downward. The upper pressing plate 5 moves in a straight line under the action of the positioning columns 7, so that the concrete is squeezed through the pressure test column 12 to complete the pressure test.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning device for a concrete press, characterized in that: It comprises a mounting plate (1), a press base (3) and a bottom plate (4), wherein: Four groups of positioning plates (10) are movably arranged above the bottom plate (4), and two groups of positioning components are arranged inside the press base (3) for driving the four groups of positioning plates (10) to push concrete to the center point of the bottom plate (4); The positioning assembly comprises a connecting rod (11), a sliding plate (15), a traction rod (16), a rotating plate (17) and a driving module for providing power, wherein the connecting rod (11) is fixedly connected to a side of the sliding plate (15) away from the traction rod (16), and the traction rod (16) is rotatably arranged on the upper surface of the sliding plate (15), and the connecting rod (11), the sliding plate (15) and the traction rod (16) are each provided in two groups, and the two groups of the connecting rod (11), the sliding plate (15) and the traction rod (16) are symmetrically arranged on both sides of the rotating plate (17).

2. A positioning device for a concrete press according to claim 1, characterized in that: The positioning assembly also includes a fixed plate (13), a connecting plate (14) and a rotating column (18). The connecting plate (14) is provided in two groups. The two groups of connecting plates (14) are fixedly installed on the inner side wall of the press base (3). The fixed plate (13) is fixedly installed on the corresponding surfaces of the two groups of connecting plates (14). The rotating column (18) is fixedly installed on the upper surface of the fixed plate (13), and the rotating plate (17) is rotatably arranged on the top of the rotating column (18).

3. A positioning device for a concrete press according to claim 2, characterized in that: Two groups of clamping protrusions (20) are arranged on the lower surfaces of the two groups of sliding plates (15), and sliding grooves (19) corresponding to the clamping protrusions (20) are arranged on the upper surfaces of the two groups of connecting plates (14).

4. A positioning device for a concrete press according to claim 3, characterized in that: One end of the traction rod (16) is rotatably arranged on the center point of the upper surface of the sliding plate (15), and the other end of the traction rod (16) is rotatably arranged on the upper surface of the rotating plate (17).

5. A positioning device for a concrete press according to claim 4, characterized in that: The driving module comprises a support plate (2) and a hydraulic push rod (9), wherein the support plate (2) and the hydraulic push rod (9) are each provided in two groups, wherein the two groups of the support plates (2) are fixedly mounted on the upper surface of the mounting plate (1), the bottom ends of the two groups of the hydraulic push rods (9) are mounted on the side surfaces of the fixed support plates (2), and the working ends of the two groups of the hydraulic push rods (9) are respectively fixedly connected to two groups of adjacent connecting rods (11).

6. A positioning device for a concrete press according to claim 1, characterized in that: A partition plate (8) is fixedly installed inside the press base (3), and the partition plate (8) is located on the corresponding surfaces of the two groups of positioning components. Four groups of connecting rods (11) are provided, and the four groups of connecting rods (11) slide through the corresponding side walls of the press base (3).

7. A positioning device for a concrete press according to claim 1, characterized in that: The press base (3) is fixedly mounted on the upper surface of the mounting plate (1), the bottom plate (4) is arranged on the upper surface of the press base (3), and the plurality of groups of connecting rods (11) are not in contact with the bottom plate (4).

8. The positioning device for a concrete press according to claim 1, characterized in that: The upper surface of the press base (3) is provided with a plurality of groups of positioning columns (7), an upper pressing plate (5) is slidably provided on the outer arc surface of the plurality of groups of positioning columns (7), a hydraulic rod (6) is fixedly provided on the top of the upper pressing plate (5), and a pressure test column (12) is provided on the lower surface of the upper pressing plate (5).

Images