Concrete block embedded steel bar slotting tool

By designing tools for the upper substrate, side substrates, and slotting components, precise slotting of rebar grooves in concrete blocks was achieved, solving the problems of low precision and efficiency of existing tools and improving construction quality and applicability.

CN224028008UActive Publication Date: 2026-03-24ZHEJIANG CONSTR ENG GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

The existing tools for grooving rebar in concrete blocks are difficult to control precisely in terms of grooving position, depth and width, resulting in unstable connection quality, low construction efficiency, easy scrapping of blocks and increased material costs.

Method used

A tool comprising an upper substrate, side substrates, and a slotting component was designed. Through a detachable connection structure between the limiting end and the slotting end, combined with guide wheels and a handle, it achieves precise position calibration and multi-directional adjustment to adapt to different slotting requirements.

Benefits of technology

It improves the accuracy and efficiency of grooving, ensures the stability of the position and depth of the rebar groove, reduces the scrap rate of masonry blocks, expands the scope of application, and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a concrete block bar planting slotting tool which comprises an upper base plate, a side base plate and a slotting piece, the upper base plate and the side base plate form an upper datum plane and a side datum plane respectively, the upper datum plane and the side datum plane are perpendicular to each other, the upper base plate is provided with an installation hole channel penetrating through the upper datum plane, and the slotting piece is arranged in the installation hole channel. The grooving piece comprises a movable installation part, the two ends of the movable installation part are connected with a limiting end and a grooving end correspondingly, and the movable installation part penetrates through the installation hole channel and enables the limiting end and the grooving end to be limited to the two sides of the upper base plate correspondingly. And a moving space for the movable mounting part to move along the direction parallel to the upper reference surface is reserved in the mounting hole channel. The grooving position precision is higher, the grooving depth is more stable, the grooving position can be rapidly adjusted, and different application requirements are met.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the masonry engineering technical field, and concretely relates to a concrete block plant bar slotting tool. BACKGROUND

[0002] With the improvement of global requirements for building environmental protection and energy saving, autoclaved aerated concrete blocks have been widely used in the building industry and have broad application prospects due to their light weight, high strength, heat insulation, sound insulation, and thermal insulation, and can be sawed, planed, drilled, and nailed like wood.

[0003] Although autoclaved aerated concrete blocks have light weight, high strength, and excellent heat insulation and thermal insulation performance, they are slightly insufficient in crack resistance. In the prior art, steel mesh is usually used to reinforce autoclaved concrete blocks. Specifically, a plant bar slot is formed on the surface of the concrete block during construction, the steel mesh is placed corresponding to the plant bar slot, and bonding mortar is used for bonding treatment to improve the overall structural performance of the concrete block and the steel mesh and to improve the service efficiency and life of the building.

[0004] Plant bar slotting usually includes manual slotting and mechanical slotting. The latter has a relatively complex device structure and cannot be conveniently applied in various scenarios. Therefore, manual slotting is required in many scenarios by using some slotting tools, such as the high-performance autoclaved sand aerated concrete block slotting device disclosed in the patent document with the application number CN201822001787.X. The slotting position, depth, and width of the existing slotting tool can only be manually observed and manually adjusted, and the slotting efficiency and accuracy are low, which may affect the connection quality of the connecting steel bar and the block and even cause the block to be scrapped, thereby increasing the material cost. UTILITY MODEL CONTENTS

[0005] To solve the above problems, the utility model provides a concrete block plant bar slotting tool, which has high construction efficiency, good slotting quality, and a simple structure and is convenient to use.

[0006] A concrete block plant bar slotting tool includes an upper base plate, a side base plate, and a slotting piece. The upper base plate and the side base plate form an upper reference surface and a side reference surface, respectively. The upper reference surface and the side reference surface are perpendicular to each other. The upper base plate is provided with a mounting hole passing through the upper reference surface. The slotting piece includes a movable mounting part. The two ends of the movable mounting part are connected to a limiting end and a slotting end, respectively. The movable mounting part passes through the mounting hole and makes the limiting end and the slotting end be limited on both sides of the upper base plate, respectively. The mounting hole leaves a movable space for the movable mounting part to move in a direction parallel to the upper reference surface.

[0007] Further, the mounting channel has two limiting hole walls extending perpendicularly to the side reference surface, and a mounting slide formed between the two limiting hole walls and allowing the movable mounting part to move perpendicularly to the side reference surface.

[0008] Further, the extending length of the limiting hole wall is not less than 50 mm.

[0009] Further, the upper substrate is provided with a plurality of mounting channels arranged perpendicularly to the side reference surface, and the spacing between adjacent mounting channels is 50-100 mm.

[0010] Further, the movable mounting part is movably connected with the limiting end head and / or the slotted end head, and the limiting end head and the slotted end head can move towards each other. In the utility model, the connecting mode of the limiting end head and the slotted end head with the movable mounting part can be various modes, but it is required to ensure that at least one of the limiting end head or the slotted end head can move perpendicularly to the upper reference surface, so that the slotted part can be switched between the locked and free states, and further the adjustment of the opening position of the anchorage slot is realized.

[0011] Further, the concrete block anchorage slot opening tool further comprises a guide wheel, the side substrate is provided with a positioning base and a guide wheel mounting opening penetrating the side reference surface, the guide wheel is connected with the positioning base and the axis of the guide wheel is perpendicular to the upper reference surface, and a part of the guide wheel protrudes relative to the side reference surface.

[0012] Further, the limiting end head is fixedly connected with the movable mounting part, the slotted end head is provided with a connecting screw hole, the movable mounting part has a first screw thread structure matched with the connecting screw hole, and the slotted end head and the movable mounting part form a detachable connection.

[0013] Further, the slotted part further comprises a gasket, and the middle part of the gasket is provided with a matching hole through which the movable mounting part passes.

[0014] Further, the outer side surface of the upper substrate is fixedly connected with a handle.

[0015] Further, the slotted end head forms a slotted blade edge with gradually decreasing thickness at the end away from the upper substrate.

[0016] 1、In the utility model, the upper substrate and the side substrate calibrate the position of the concrete block through the upper reference surface and the side reference surface, so that the opening position precision of the anchorage slot is higher, and the opening depth is more stable.

[0017] 2、In the utility model, the slotted part can move along the direction parallel to the upper reference surface, so that the opening position is quickly adjusted, and different processing requirements are realized.

[0018] 3. In some embodiments of this utility model, the slotted end and the movable mounting part are connected by a threaded joint structure to form a detachable connection. By replacing the slotted end with different specifications, the requirements for slotting of different widths and depths can be met, and the application range is wide.

[0019] 4. In some embodiments of this utility model, the side base plate is provided with guide wheels. The guide wheel device can ensure that the grooving tool moves in a straight line and plays a role in reducing friction, improving the smoothness of movement, improving the straightness of grooving and reducing maintenance costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the concrete block rebar grooving tool in the embodiment.

[0021] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure of the embodiment shown from another perspective;

[0022] Figure 3 for Figure 1 Side view;

[0023] Figure 4 for Figure 1 Top view;

[0024] In the figure, 1-upper base plate, 11-mounting channel, 111-limiting hole wall, 12-upper reference surface, 2-side base plate, 21-guide wheel mounting port, 22-positioning base, 23-side reference surface, 3-slotted part, 31-movable mounting part, 32-limiting end, 33-slotted end, 34-shield, 4-guide wheel, 5-grip, 51-grip pad. Detailed Implementation

[0025] This utility model provides a tool for slotting rebar in concrete blocks, suitable for processing rebar grooves in autoclaved aerated concrete blocks to embed steel mesh into the blocks, thereby improving the overall physical properties of the concrete blocks. The specific embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Example

[0026] Reference Figures 1-4The utility model discloses an embodiment provides a kind of concrete block plant slotting tool, it includes through edge portion mutually perpendicular connection upper base plate 1 and side base plate 2 and with the detachable connection of upper base plate slotting piece 3, the side of the upper base plate and side base plate close to inside angle respectively forms upper datum plane 12 and side datum plane 23, the upper base plate is provided with the installation hole 11 through the upper datum plane, the installation hole includes two limit hole walls 111 that are spaced apart and parallel, the limit hole wall extends perpendicular to the measured datum plane, the end of two limit hole walls is connected by arc-shaped end wall transition, the slotting piece 3 includes movable mounting portion 31, the two ends of movable mounting portion are respectively connected with limit end head 32 and slotting end head 33, the movable mounting portion 31 passes through the installation hole 11 and makes limit end head 32 and slotting end head 33 respectively on the upper and lower sides of upper base plate 1, the limit end head is integrally fixedly connected with movable mounting portion, the slotting end head is detachably connected with movable mounting portion, specifically, the upper end of slotting end head forms an abutting plane, the lower end forms slotting edge that gradually reduces in thickness, the middle part of the abutting plane is provided with through connection screw hole, the movable mounting portion is provided with the first screw thread structure corresponding with connection screw hole, by rotating movable mounting portion, the abutting plane on the upper end of slotting end head can be fixed with upper datum plane 12, realize the locking installation of slotting piece, when slotting end head and upper datum plane are in non-locking state, movable mounting portion can slide along the two limit hole walls of installation hole in the direction perpendicular to side datum plane, to change the relative position of slotting end head, to meet the different types of slotting requirements, the spacing of two limit hole walls should be slightly greater than the outer diameter of movable mounting portion, to ensure the activity of movable mounting portion, in addition, the type of slotting end head can also be replaced to realize the processing of different specifications of plant slot.

[0027] The utility model discloses through the upper datum plane of upper base plate and the side datum plane of side base plate and the positioning cooperation of concrete block to be processed, can guarantee that slotting piece moves in straight line along predetermined direction in the process of moving slotting, need not set up additional tool to assist correction, improve the slotting quality, promote the slotting efficiency, and can change the arrangement of plant slot by adjusting the installation position of slotting piece, and the use flexibility is higher. In order to facilitate the manual control of the utility model, the other side of the upper base plate opposite to the upper datum plane can be connected with a handle 5, considering the operation habit, the handle can be provided with a first handle section and a second handle section, which are connected with the upper base plate at a right angle and at an angle, respectively. From the manufacturing point of view, the handle and the upper base plate are usually independently cast and formed before being welded later. In order to improve the welding quality, the bottom of the handle can be provided with a handle backing plate 51, which is welded after being attached to the upper base plate. Due to the complexity of the construction site environment, the materials of the upper base plate, the lower base plate and the slotting piece in the utility model are preferably made of zinc-plated materials with excellent wear resistance, but are not limited to other materials used in the field.

[0028] In the preferred embodiment, a plurality of slotting tools can be provided to process a plurality of steel bar slots at a time, the slotting tools can be adjusted in the direction perpendicular to the reference surface to change the arrangement spacing of the steel bar slots, the plurality of slotting tools can be provided in the same mounting hole or in different mounting holes, and the specific shape of the mounting hole can be adjusted according to the mounting mode of the slotting tool, and when there are a plurality of different mounting holes, the plurality of mounting holes are preferably arranged in the direction perpendicular to the side reference surface to ensure the regularity of the steel bar slots.

[0029] In some embodiments, in order to improve the smoothness during the movement of the slotting process, the utility model also provides a guide wheel 4, the side base plate 2 is correspondingly provided with a guide wheel mounting hole 21 penetrating the reference surface and a positioning base 22 close to the guide wheel mounting hole, the guide wheel is movably connected with the positioning base through a bearing and the axis is perpendicular to the upper reference surface, the guide wheel penetrates the guide wheel mounting hole, part of the guide wheel protrudes relative to the side reference surface, and the guide wheel contacts the concrete block instead of the side reference surface during the slotting process, and under the action of the guide wheel, the movement of the utility model is smoother and more stable, the straightness of the steel bar slot can be improved, and the wear of the tool can be reduced, and in a more preferred embodiment, the surface layer of the guide wheel for contacting the concrete block should be elastic, for example, TPE rubber can be used as the surface layer of the guide wheel.

[0030] In some embodiments, in order to improve the installation stability of the slotting tool, the slotting tool further comprises a gasket 34, the middle part of the gasket is provided with a matching hole through which the movable mounting part passes, in use, the gasket is placed at a position corresponding to the mounting hole and the matching hole is communicated with the mounting hole, after the movable mounting part passes through the matching hole, the limiting end abuts against the gasket, and the contact area of the gasket with the upper base plate is greater than the direct contact area of the limiting end with the upper base plate, so that the locking structure formed by the slotting tool and the upper base plate is more stable.

[0031] For those skilled in the art, the technical scheme and the utility model concept of the utility model can be replaced or changed equivalently, and any kind of noun interpreted as a replacement term belongs to the protection scope of the utility model without departing from the spirit and scope of the utility model.

Claims

1. A tool for slotting rebar in concrete blocks, characterized in that: The device includes an upper substrate (1), a side substrate (2), and a slotted component (3). The upper substrate and the side substrate form an upper reference surface (12) and a side reference surface (23), respectively. The upper reference surface and the side reference surface are perpendicular to each other. The upper substrate is provided with a mounting channel (11) that passes through the upper reference surface. The slotted component includes a movable mounting part (31). The two ends of the movable mounting part are respectively connected to a limiting end (32) and a slotted end (33). The movable mounting part passes through the mounting channel and restricts the limiting end and the slotted end to the two sides of the upper substrate, respectively. The mounting channel has a movable space for the movable mounting part to move in a direction parallel to the upper reference surface.

2. The tool for slotting rebar in concrete blocks according to claim 1, characterized in that: The mounting channel has two limiting hole walls (111) extending perpendicular to the side reference plane, and a mounting slide is formed between the two limiting hole walls, allowing the movable mounting part to move in a direction perpendicular to the side reference plane.

3. The tool for slotting rebar in concrete blocks according to claim 2, characterized in that: The extension length of the limiting hole wall is not less than 50mm.

4. The tool for slotting rebar in concrete blocks according to claim 1, characterized in that: The upper substrate is provided with multiple mounting holes, which are arranged in a direction perpendicular to the side reference plane, and the spacing between adjacent mounting holes is 50~100mm.

5. The tool for grooving rebar in concrete blocks according to claim 1, characterized in that: The movable mounting part is movably connected to the limiting end and / or the slotted end, allowing the limiting end and the slotted end to move towards each other.

6. The tool for slotting rebar in concrete blocks according to claim 5, characterized in that: The limiting end is fixedly connected to the movable mounting part, the slotted end is provided with a connecting screw hole, the movable mounting part has a first thread structure that mates with the connecting screw hole, and the slotted end and the movable mounting part form a detachable connection.

7. The tool for slotting rebar in concrete blocks according to claim 1, characterized in that: It also includes a guide wheel (4), the side base plate is provided with a positioning base and a guide wheel mounting port (21) that penetrates the side reference surface, the guide wheel is connected to the positioning base and the axis of the guide wheel is perpendicular to the upper reference surface, and a part of the guide wheel protrudes relative to the side reference surface.

8. The tool for grooving rebar in concrete blocks according to claim 1, characterized in that: The slotted component also includes a gasket (34), which has a mating hole in the middle through which the movable mounting part can pass.

9. The tool for grooving rebar in concrete blocks according to claim 1, characterized in that: A handle (5) is fixedly connected to the outer side of the upper substrate.

10. A tool for slotting rebar in concrete blocks according to claim 1, characterized in that: The slotted end has a gradually decreasing thickness slotted edge at the end furthest from the upper substrate.

Citation Information

Patent Citations

  • High-performance autoclaved sand aerated concrete block groove removing device

    CN209971132U