Grooving tool for tie bar groove of aerated concrete block

Abstract

The utility model discloses an aerated concrete block tie bar groove grooving tool which comprises a first shaft rod and a second shaft rod which are arranged in parallel, limiting baffles are arranged at the two ends of the first shaft rod, the first shaft rod and the second shaft rod are sleeved with two sets of groove cutter plates and a handle, the handle is located between the two sets of groove cutter plates, and groove cutter teeth are arranged on the lower surfaces of the groove cutter plates. And the lower part of the grooving cutter plate is connected with a depth control strip for limiting the grooving depth. The grooving cutter plate and the handle are arranged on the first shaft rod and the second shaft rod which are arranged in parallel in a sleeving mode, and the grooving cutter plate and the handle are prevented from rotating during grooving; the limiting baffle clamps the outer edge of the aerated concrete block to move during grooving, so that the grooving straightness is guaranteed; the grooving depth is ensured through the existence of a depth control strip; the position of the limiting baffle can be adjusted on the first shaft rod so as to adapt to aerated concrete blocks of different sizes; the grooving cutter plate is arranged on the first shaft rod and the second shaft rod in a sleeving manner and is convenient to replace so as to meet grooving requirements of different widths; and the grip strength and the comfort degree are enhanced by the operating handle.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, and in particular relates to a tool for grooving tie bar grooves of an aerated concrete block. Background Art

[0002] In construction projects, aerated concrete blocks are widely used in the construction of non-load-bearing exterior walls, partition walls, and filling walls. The Code for Construction of Masonry Structures (GB50924-2014) requires that when autoclaved aerated concrete blocks are laid using the thin-layer mortar masonry method, the connection between the blocks and the tie bars should be pre-grooved on the upper surface of the blocks at the corresponding positions. During masonry, the steel bars should be placed in the center of the groove mortar. The Code for Acceptance of Construction Quality of Masonry Structures (GB50203-2011) requires that for autoclaved aerated concrete blocks constructed using the thin-layer mortar masonry method, the tie bars should be placed in the grooves set on the upper surface of the blocks. At present, the thin-layer mortar masonry method is widely used in masonry construction, and the efficiency of the grooves for the tie bars directly affects the overall construction speed of masonry.

[0003] The existing tie bar groove grooving tools on the market are single-groove type. When grooving, it is necessary to draw lines on the blocks, then cut grooves along the lines by hand, then clean the grooves between the two lines, and finally bury the tie bars. This construction method is cumbersome, the grooving efficiency is low, and the grooving construction quality depends on the technical level of the workers. There will be large errors in the grooving position, straightness, depth, and width, and the grooving effect is difficult to control. Summary of the invention

[0004] In order to solve the problems of uneven spacing and depth of tie bars during construction, the utility model provides an aerated concrete block tie bar groove grooving tool, which can accurately and quickly groove the masonry to ensure that the groove position, straightness, depth and width meet the requirements.

[0005] The purpose of the utility model is achieved in the following ways:

[0006] A tool for grooving tie bar grooves in an aerated concrete block comprises a first shaft rod and a second shaft rod parallel to each other, limit baffles are arranged at both ends of the first shaft rod, two groups of groove blade plates and a handle are sleeved on the first shaft rod and the second shaft rod, the handle is located between the two groups of groove blade plates, groove blade teeth are arranged on the lower surface of the groove blade plates, and a depth control strip for limiting the groove depth is connected to the lower part of the groove blade plates.

[0007] The limit baffle is threadedly connected to the first shaft rod, and both sides are fixed by nuts.

[0008] The groove knife plate is threadedly connected to the second shaft rod, and both sides are fixed by nuts.

[0009] A protective cover is also arranged between the left and right groove blades.

[0010] The protective cover is made of transparent material.

[0011] Compared with the prior art, the limit baffle of the utility model ensures the straightness of the slotting, the handle enhances the hand grip and comfort during slotting, and two sets of slot cutters are used for slotting, so the force is more evenly applied, the slotting effect is better, the accuracy and efficiency of slotting can be improved, and the wear of the cutter head can be reduced. The existence of the depth control strip ensures the depth of the slotting. It can also adjust the spacing and width of the slotting according to the thickness of the aerated concrete block, the specifications of the tie bar and other parameters, ensure that the buried depth and anchoring effect of the anchor bar reach the best state, improve the quality of masonry construction, and save labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0013] like Figure 1 As shown, a tool for grooving tie bar grooves in an aerated concrete block comprises a first shaft rod 2 and a second shaft rod 7 parallel to each other, limit baffles 1 are arranged at both ends of the first shaft rod 2, two groups of groove blade plates 4 and a handle 3 are sleeved on the first shaft rod 2 and the second shaft rod 7, the handle 3 is located between the two groups of groove blade plates 4, groove blade teeth 41 are arranged on the lower surface of the groove blade plates 4, and the lower part of the groove blade plates 4 is connected to a depth control strip 6 for limiting the groove depth.

[0014] When grooving, the limit baffle 1 will move along the two outer edges of the aerated concrete block to ensure the straightness of the grooving; the groover plate 4 and the handle 3 are mounted on the first shaft rod 2 and the second shaft rod 7 arranged in parallel to prevent the groover plate 4 and the handle 3 from rotating during grooving; the presence of the handle 3 enhances the hand grip and comfort during grooving. In addition, the handle 3 is located between the two groups of groover plates 4. When grooving, the handle can apply force to the two groups of groovers more evenly, and the grooving effect is better. It can also be operated with one hand, and the flexibility is higher. Using two groups of groovers for grooving can improve the accuracy and efficiency of grooving, while reducing the wear of the cutter head; the presence of the depth control strip 6 ensures the depth of grooving, and the depth control strip 6 can be fixedly connected to the lower part of the groover plate, such as welded on one side of the groover tooth 41, or it can be fixed by other movable connection methods.

[0015] Furthermore, the limit baffle 1 is threadedly connected to the first shaft 2, and the two sides are fixed by nuts 5. The limit baffle 1 is threadedly connected to the first shaft 2, so as to facilitate the adjustment of the position of the limit baffle 1 on the first shaft 2, that is, to adjust the distance between the two limit baffles 1, so as to adapt to aerated concrete blocks of different sizes.

[0016] Furthermore, the groove blade plate 4 is threadedly connected to the second shaft rod 7, and the two sides are fixed by nuts 5. The groove blade plate 4 is sleeved on the first shaft rod and the second shaft rod, and is threadedly connected to the second shaft rod 7, which is convenient for replacement. When different aerated concrete blocks are replaced and grooves of different widths are required, the groove blade plate 4 can be directly replaced, and different groove blade plates correspond to groove blade teeth 41 of different widths.

[0017] Furthermore, the groove blade plate 4 and the groove blade teeth 41 are formed in one piece, and this structure is more solid and durable.

[0018] Furthermore, a protective cover 9 is provided between the left and right groove blades 4. The protective cover 9 is hinged or clamped to the left and right groove blades 4. The protective cover 9 can prevent dust generated during grooving from splashing upward, thereby improving the working environment and safety performance. The protective cover 9 is preferably made of a transparent material, such as acrylic. Acrylic has good transparency, chemical stability, weather resistance, high surface hardness and surface gloss, as well as good high temperature performance, as well as good mechanical properties. It is easy to dye and process, and is widely used in the construction industry. Furthermore, in order to adapt to aerated concrete blocks of different specifications and grooving conditions, the protective cover 9 is made into a retractable structure.

[0019] Working process: Determine the spacing and width of the slots according to the thickness, width, construction position and tie bar specifications of the aerated concrete block, adjust the position of the limit baffles 1 at both ends of the first shaft 2, so that the two limit baffles 1 clamp the aerated concrete block, select the groove cutter teeth 41 and the groove cutter plate 4 of appropriate width according to the width of the groove to be opened, adjust the position of the groove cutter plate 4 on the first shaft 2 and the second shaft 7 according to the position of the groove to be opened on the aerated concrete block, fix the groove cutter plate 4 on the second shaft 7 through the nut 5, hold the handle 3 to apply force, and the groove cutter teeth 41 under the groove cutter plate 4 leave a groove on the aerated concrete block. When slotting, the limit baffle moves along the aerated concrete block to ensure that the groove will not be deflected; the depth control bar 6 assists workers in judging and controlling the depth of the groove.

[0020] The utility model can adjust the spacing and width of the grooves according to the thickness of the aerated concrete block, the specification of the tie bars and other parameters, ensure that the buried depth and anchoring effect of the anchor bars reach the optimal state, and improve the quality of masonry construction.

[0021] The above is only a preferred embodiment of the present invention. It should be pointed out that, for those skilled in the art, several changes and improvements can be made without departing from the overall concept of the present invention, and these should also be regarded as the protection scope of the present invention.

Claims

1. A tool for making grooves for tie bars in aerated concrete blocks, characterized by: The invention comprises a first shaft (2) and a second shaft (7) which are parallel to each other, wherein both ends of the first shaft (2) are provided with limit baffles (1), and two groups of groove blade plates (4) and a handle (3) are sleeved on the first shaft (2) and the second shaft (7), wherein the handle (3) is located between the two groups of groove blade plates (4), and groove blade teeth (41) are provided on the lower surface of the groove blade plates (4), and a depth control strip (6) for limiting the groove depth is connected to the lower part of the groove blade plates (4).

2. The tool for making grooves for tie bars of aerated concrete blocks according to claim 1, characterized in that: The limit baffle (1) is threadedly connected to the first shaft (2), and is fixed on both sides by nuts (5).

3. The tool for making grooves for tie bars of aerated concrete blocks according to claim 1, characterized in that: The grooved blade plate (4) is threadedly connected to the second shaft rod (7), and both sides are fixed by nuts (5).

4. The tool for making grooves for tie bars of aerated concrete blocks according to claim 1, characterized in that: A protective cover (9) is also provided between the left and right groove blade plates (4).

5. The tool for making grooves for tie bars of aerated concrete blocks according to claim 4, characterized in that: The protective cover (9) is made of transparent material.

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