A self-locking mechanism for mold box crank arm for aerated concrete blocks

Abstract

The invention discloses a self-locking mechanism of a mold box crank arm for aerated concrete blocks, comprising a crank arm crossbeam and a stopper, wherein the side wall of the crank arm crossbeam is fixed with a rotating shaft by bolts, and a locking block is rotatably arranged on the outer wall of the rotating shaft, the locking block is in a D-shaped structure, the stopper is arranged near the position of the locking block, a counterweight block assembly is arranged at one end of the locking block, the counterweight block assembly comprises a connecting portion and a counterweight disc fixed on one side of the locking block, and the connecting portion extends along the straight edge direction of the locking block, a perforation is radially provided on the circumference of the counterweight disc, and an adjusting bolt is rotatably connected in the perforation, one end of the adjusting bolt is screwed with one end of the connecting portion, the connecting portion is provided with a guide hole, and the extending direction of the guide hole is parallel to the adjusting bolt, and a guide rod is inserted in the guide hole. The invention is convenient for adjusting the position of the counterweight disc and the counterweight effect, and at the same time, combined with the provided rotating disc and the fan-shaped protrusion, it is convenient to adjust the center of gravity position of the counterweight disc to ensure the rotation of the locking block.

Description

Technical Field

[0001] The invention relates to the technical field of aerated concrete block plate production, in particular to a mold box crank arm self-locking mechanism for aerated concrete blocks. Background Art

[0002] Aerated concrete blocks are a new type of building material that is lightweight, porous, heat-insulating, fire-proof, can be nailed, sawed, planed, and has a certain earthquake resistance. As early as the early 1930s, China began to produce this product and it was widely used in high-rise frame structure buildings. It is an excellent new building material and has the advantages of environmental protection. In view of the problems that occur during the use of the mold box, an important component in the current aerated concrete block board production line, the crank arm of the mold box clamping the side plate is easy to rotate and disengage from the clamping position during use, making it impossible to clamp the mold box and the side plate, resulting in economic losses. If the rotation angle is too large, it is easy to cause the side plate to fall and cause danger, which is easy to cause damage to the side plate, affecting production, causing unnecessary losses to customers, and increasing the cost of after-sales service. In order to avoid this problem, a self-locking mechanism for the crank arm of the mold box for aerated concrete blocks is now proposed. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a self-locking mechanism for a mold box crank arm for an aerated concrete block.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A self-locking mechanism for a mold box crank arm for an aerated concrete block comprises a crank arm cross beam and a stopper, wherein a rotating shaft is fixed to the side wall of the crank arm cross beam by bolts, and a locking block is rotatably arranged on the outer wall of the rotating shaft, the locking block is in a D-shaped structure, the stopper is arranged near the locking block, and a counterweight block assembly is arranged at one end of the locking block.

[0006] Preferably, the counterweight block assembly includes a connecting portion fixed to one side of the locking block and a counterweight plate, and the connecting portion extends along the straight edge direction of the locking block, the circumferential surface of the counterweight plate is radially provided with through holes, and an adjusting bolt is rotatably connected in the through hole, and one end of the adjusting bolt is threadedly connected to one end of the connecting portion.

[0007] Preferably, the connecting portion is provided with a guide hole, and the extension direction of the guide hole is parallel to the adjusting bolt, a guide rod is inserted into the guide hole, and one end of the guide rod is connected to the peripheral surface of the counterweight plate.

[0008] Preferably, circular grooves are provided on both sides of the counterweight plate, and turntables are rotatably arranged in the two circular grooves, and fan-shaped protrusions are provided at the edge positions of the side walls of the two turntables.

[0009] Preferably, locking bolts are threadedly connected at the center positions of the two turntables, and the two locking bolts are threadedly connected to the two sides of the counterweight plate respectively.

[0010] Preferably, the ends of the locking bolt and the adjusting bolt are both provided with hexagonal grooves.

[0011] The beneficial effects of the present invention are:

[0012] It ensures that the crank arm will not rotate due to vibration during the movement of the mold box, and ensures that the crank arm can rotate freely under the action of the demoulding crane during the demoulding and closing processes of the mold box. The position of the counterweight plate and the counterweight effect can be easily adjusted through the set adjusting bolts. At the same time, combined with the set turntable and fan-shaped protrusions, the center of gravity position of the counterweight plate can be easily adjusted to ensure the rotation of the locking block. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural schematic diagram of a mold box crank arm self-locking mechanism for aerated concrete blocks proposed by the present invention;

[0014] Figure 2 This is a structural schematic diagram of a counterweight assembly of a mold box crank arm self-locking mechanism for an aerated concrete block proposed by the present invention;

[0015] Figure 3 A schematic side view of the structure of a self-locking mechanism of a mold box crank arm for an aerated concrete block proposed by the present invention;

[0016] Figure 4 This is a schematic diagram of the installation structure of a mold box crank arm self-locking mechanism for aerated concrete blocks proposed by the present invention;

[0017] Figure 5 The present invention is a schematic structural diagram of a mold box crank arm self-locking mechanism for an aerated concrete block when it is opened.

[0018] In the figure: 1 crank arm cross beam, 2 counterweight plate, 3 connecting part, 4 locking block, 5 stopper, 6 rotating shaft, 7 guide rod, 8 fan-shaped protrusion, 9 locking bolt, 10 rotating plate, 11 adjusting bolt. 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 the embodiments.

[0020] Reference Figure 1-5A self-locking mechanism for a mold box crank arm for an aerated concrete block includes a crank arm crossbeam 1 and a stopper 5. A rotating shaft 6 is fixed to the side wall of the crank arm crossbeam 1 by bolts, and a locking block 4 is rotatably arranged on the outer wall of the rotating shaft 6. The locking block 4 is a D-shaped structure. The stopper 5 is arranged near the locking block 4, and a counterweight block assembly is arranged at one end of the locking block 4.

[0021] In the present invention, the counterweight block assembly includes a connecting portion 3 fixed on one side of the locking block 4 and a counterweight plate 2, and the connecting portion 3 extends along the straight edge direction of the locking block 4, the circumferential surface of the counterweight plate 2 is provided with a through hole in the radial direction, and an adjusting bolt 11 is rotatably connected in the through hole, one end of the adjusting bolt 11 is screwed to one end of the connecting portion 3, the connecting portion 3 is provided with a guide hole, and the extending direction of the guide hole is parallel to the adjusting bolt 11, a guide rod 7 is inserted in the guide hole, and one end of the guide rod 7 is connected to the circumferential surface of the counterweight plate 2, circular grooves are provided on both sides of the counterweight plate 2, and turntables 10 are rotatably arranged in the two circular grooves, fan-shaped protrusions 8 are provided at the edge positions of the side walls of the two turntables 10, locking bolts 9 are screwed at the center positions of the two turntables 10, and the two locking bolts 9 are respectively screwed to the two sides of the counterweight plate 2, and the ends of the locking bolts 9 and the adjusting bolts 11 are provided with hexagonal grooves.

[0022] Working principle: When in use, the self-locking mechanism is installed on the existing mold box arm, and the stopper 5 is fixed to the bottom of the mold box near the locking block 4, and the stopper 5 is arranged between the locking block 4 and the crank arm cross beam 1. During the rotation of the crank arm, when the mold box is flipped 90 degrees, the counterweight block assembly drives the locking block 4 to rotate, so that the straight edge of the locking block 4 is close to the stopper 5, so that the locking block 4 and the stopper 5 can be separated. During daily maintenance, in order to ensure that the locking block 4 can rotate under the action of the counterweight assembly, the position of the fan-shaped protrusion 8 is adjusted by rotating the turntable 10, and the position of the counterweight plate 2 is adjusted by rotating the adjusting bolt to adjust the counterweight effect.

[0023] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", "first", "second", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0025] 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 according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A self-locking mechanism for a mould box crank arm for an aerated concrete block, comprising a crank arm crossbeam (1) and a stopper (5), characterized in that: A rotating shaft (6) is fixed to the side wall of the crank arm cross beam (1) by means of bolts, and a locking block (4) is rotatably arranged on the outer wall of the rotating shaft (6), wherein the locking block (4) is of a D-shaped structure, and the stopper (5) is arranged at a position close to the locking block (4) at the bottom of the mold box, and the stopper (5) is arranged between the locking block (4) and the crank arm cross beam (1), and a counterweight assembly is arranged at one end of the locking block (4).

2. A mold box crank arm self-locking mechanism for aerated concrete blocks according to claim 1, characterized in that: The counterweight block assembly comprises a connecting portion (3) fixed to one side of a locking block (4) and a counterweight plate (2), wherein the connecting portion (3) extends along the straight edge direction of the locking block (4), a through hole is radially opened on the circumference of the counterweight plate (2), and an adjusting bolt (11) is rotatably connected in the through hole, and one end of the adjusting bolt (11) is threadedly connected to one end of the connecting portion (3).

3. The self-locking mechanism of the mold box crank arm for aerated concrete blocks according to claim 2, characterized in that: The connecting portion (3) is provided with a guide hole, and the extension direction of the guide hole is parallel to the adjusting bolt (11). A guide rod (7) is inserted into the guide hole, and one end of the guide rod (7) is connected to the circumference of the counterweight plate (2).

4. A mold box crank arm self-locking mechanism for aerated concrete blocks according to claim 3, characterized in that: Circular grooves are formed on both sides of the counterweight plate (2), and rotating disks (10) are rotatably arranged in the two circular grooves. Sector-shaped protrusions (8) are arranged at the edge positions of the side walls of the two rotating disks (10).

5. A mold box crank arm self-locking mechanism for aerated concrete blocks according to claim 4, characterized in that: The two rotating disks (10) are both threadedly connected with locking bolts (9) at the center of the circles, and the two locking bolts (9) are respectively threadedly connected to the two sides of the counterweight disk (2).

6. A mold box crank arm self-locking mechanism for aerated concrete blocks according to claim 5, characterized in that: The ends of the locking bolt (9) and the adjusting bolt (11) are both provided with hexagonal grooves.

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