Double-joint pointing device for masonry engineering
By combining a dual-axis design with a threaded sleeve, the problem of complex grouting operations is solved, enabling rapid and uniform adjustment of the grouting wheel and improving the construction efficiency and quality of masonry projects.
Patent Information
- Application Number
- CN202520093859.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-01-15
AI Technical Summary
In existing masonry projects, the tools used for grouting are complex, resulting in difficult construction, poor quality, long construction time, and uneven grouting, which affects the appearance quality of the exposed brick wall.
It adopts a dual optical axis design. One optical axis is equipped with a hand handle, and the other optical axis is equipped with a rotatable threaded sleeve. The threads on both sides of the threaded sleeve are in opposite directions. The grouting wheel device is respectively engaged with the threads. By rotating the threaded sleeve, the synchronous adjustment of double seam grouting is achieved, and the spring is used to distribute the force evenly.
It enables quick and easy adjustment of the grouting wheel spacing, improves construction efficiency, ensures uniform grouting, and enhances the construction quality of fair-faced concrete walls.
Smart Images

Figure CN223824549U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of building construction equipment, and specifically to a double-joint pointing device for masonry engineering. BACKGROUND
[0002] In the housing masonry engineering, the pointing of the fair-faced wall is one of the important standards for testing the quality of the fair-faced wall. In the construction of the fair-faced wall, there is a large amount of pointing work. In the early stage, there is no special tool for pointing operation, and the construction personnel all use simple tools such as trowels. Such an operation mode is not standardized, and often causes uneven or non-dense mortar joints due to improper human operation, resulting in poor visual quality, and sometimes even requires secondary rework.
[0003] The invention patent application with the publication number CN112983023A discloses a double-joint pointing device for masonry engineering and a construction method, which utilizes a lead screw and a bearing to realize pointing operation. However, in this technical solution, the two bearings are limited by their respective limiting nuts. When adjusting the pointing distance, multiple nuts need to be operated, and the adjustment is very complex.
[0004] Therefore, it is necessary to develop a double-joint pointing device for masonry engineering. CONTENT OF THE UTILITY MODEL
[0005] The utility model aims at the deficiencies in the prior art, and designs a double-joint pointing device for masonry engineering to solve the problems of great difficulty, poor quality, multiple processes, and long time caused by the independent suspender installation method.
[0006] In order to achieve the above-mentioned purpose, the utility model provides a double-joint pointing device for masonry engineering, which adopts the following technical solution: a first optical axis and a second optical axis are arranged in parallel, a handheld rod is vertically arranged at the center of the first optical axis, a threaded sleeve is arranged outside the second optical axis, two symmetrically arranged pointing wheel devices are connected between the first optical axis and the second optical axis, the threaded sleeve includes a handle part at the middle position and threaded parts on both sides of the handle part, the threaded directions of the threaded parts on both sides are opposite, and the two pointing wheel devices are provided with threaded holes respectively matched with the two corresponding threaded parts.
[0007] Further, the pointing wheel device includes a mounting bracket and a pointing wheel arranged at the lower part of the mounting bracket, a through hole for matching with the first optical axis is formed on one side of the mounting bracket, and a threaded hole for matching with the threaded sleeve is formed on the other side.
[0008] Furthermore, the grouting wheel is mounted on a wheel bracket, and guide rods are provided on both sides of the wheel bracket. A through hole for cooperating with the guide rod is provided on the mounting bracket. A limiting nut is provided above the guide rod on the mounting bracket, and a spring is sleeved on the outside of the guide rod below the mounting bracket. The spring is located between the wheel bracket and the mounting bracket.
[0009] Furthermore, the stitching wheel is located between the first optical axis and the second optical axis and at a lower position.
[0010] Furthermore, a damping mechanism is provided between the second optical axis and the threaded sleeve.
[0011] Furthermore, mounting plates are provided at both ends of the first optical axis and the second optical axis, and the two ends of the first optical axis and the second optical axis are respectively fixed on the mounting plates.
[0012] Furthermore, the handheld lever is a telescopic lever.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] This invention employs a dual-axis design, with a handheld lever mounted on one axis and a rotatable threaded sleeve mounted on the other. The threads on both sides of the threaded sleeve are in opposite directions, and the grouting wheel devices are respectively mounted on the threads on both sides. By turning the threaded sleeve, the two grouting wheel devices can be moved inward or outward simultaneously, allowing for simultaneous double-seam grouting. This design makes adjusting the spacing between the grouting wheels more convenient, easier to operate, and more efficient. Attached Figure Description
[0015] Fig. 1 This is a schematic diagram of the structure of this utility model;
[0016] Fig. 2 This is a schematic diagram of the grouting wheel device of this utility model;
[0017] Fig. 3 This is a structural diagram showing the installation position of the guide rod of this utility model.
[0018] In the diagram: 1-Handheld rod; 2-Threaded sleeve; 3-First optical axis; 4-Second optical axis; 5-Mounting bracket; 6-Gluing wheel; 7-Guide rod; 8-Spring; 9-Wheel bracket; 10-Mounting plate. Detailed Implementation
[0019] Preferred embodiments of the present invention will now be described in more detail. While preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.
[0020] In the description of this utility model, it should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0022] like Figs. 1-3 As shown, this utility model is a double-joint grouting device for masonry engineering, including a first optical axis 3, a second optical axis 4, a hand handle 1, a threaded sleeve 2, and a grouting wheel device. The first and second optical axes are arranged in parallel and are fixedly installed by mounting plates 10 at both ends. The hand handle 1, perpendicular to the first optical axis 3, is fixedly installed at the center position of the first optical axis 3. The threaded sleeve 2 is provided and sleeved on the outside of the second optical axis 4. There is a certain damping between the threaded sleeve 2 and the second optical axis 4, so that the threaded sleeve 2 can rotate only when an external force is applied.
[0023] The threaded sleeve 2 includes a handle located in the center and threaded portions on both sides of the handle. The threads on both sides are in opposite directions. There are two grouting wheel devices, each engaging with one of the opposite-direction threaded portions. The grouting wheel devices are also slidably connected to the first optical axis 3. When adjusting the distance between the two grouting wheel devices, simply grip the handle of the threaded sleeve 2 and rotate it. The grouting wheel devices on both sides will move inward or outward simultaneously, making adjustment more convenient and faster, and improving adjustment efficiency.
[0024] Furthermore, the grouting wheel device includes a mounting bracket 5 and a grouting wheel 6 mounted on the mounting bracket 5, such as... Fig. 2 As shown, a through hole is provided on the front side of the mounting bracket 5, which is slidably connected to the first optical axis 3 and serves as a guide. A threaded hole is provided on the rear side, which engages with the threaded part of the threaded sleeve 2. When the threaded sleeve 2 rotates, it drives the mounting bracket 5 to move.
[0025] Preferably, the grouting wheel 6 is mounted on the wheel bracket 9 via a rotating shaft. A guide rod 7 is fixedly installed on each of the left and right sides of the wheel bracket 9. A vertical through hole is provided on the mounting bracket 5, through which the guide rod 7 passes upwards. A limiting nut is provided above the mounting bracket 5 to prevent the guide rod 7 from disengaging from the mounting bracket 5. A spring 8 is fitted on the guide rod 7, located between the mounting bracket 5 and the wheel bracket 9. When the operator accidentally turns the handle 1 to one side, the spring 8 can generate a certain amount of elastic deformation, reducing the problem of uneven grouting depth caused by uneven force on the left and right sides of the grouting wheel 6, resulting in a more aesthetically pleasing grouting finish.
[0026] Preferably, the grouting wheel 6 is installed between the first optical axis 3 and the second optical axis 4 and at a slightly lower position.
[0027] This invention uses a threaded sleeve 2 to adjust the distance between the two grouting wheels, allowing for adjustments to meet different grouting needs and making adjustments more convenient. A spring 8 is installed between the grouting wheel 6 and the mounting bracket 5, enabling the grouting wheel 6 to be adjusted within a certain range. When the forces on the two grouting wheels are uneven, the spring 8 can undergo elastic deformation, preventing the problem of different grouting depths.
[0028] This invention can greatly improve the quality of grouting construction in masonry projects and avoid problems such as incomplete mortar joints, blind joints, and sand flow.
[0029] The above embodiments are merely preferred embodiments of the present utility model. The above description is not intended to limit the protection scope of the present utility model. The above description is exemplary and not exhaustive. Therefore, all equivalent changes made according to the structure, shape, and principle of the present utility model should be covered within the protection scope of the present utility model. Without departing from the scope and spirit of the described embodiments, many modifications and changes will be obvious to those skilled in the art.
Claims
1. A double-joint grouting device for masonry engineering, characterized in that, include: A first optical axis (3) and a second optical axis (4) are arranged in parallel. A hand handle (1) is vertically arranged at the center of the first optical axis (3). A threaded sleeve (2) is sleeved on the outside of the second optical axis (4). Two symmetrically arranged hooking wheel devices are connected between the first optical axis (3) and the second optical axis (4). The threaded sleeve (2) includes a handle part located in the middle and threaded parts located on both sides of the handle part. The threaded parts on both sides have opposite thread directions. The two hooking wheel devices are provided with threaded holes that respectively cooperate with the two corresponding threaded parts.
2. The double-joint grouting device for masonry engineering according to claim 1, characterized in that, The grouting wheel device includes a mounting bracket (5) and a grouting wheel (6) disposed at the lower part of the mounting bracket (5). A through hole for cooperating with the first optical axis (3) is opened on one side of the mounting bracket (5), and a threaded hole for cooperating with the threaded sleeve (2) is opened on the other side.
3. The double-joint grouting device for masonry engineering according to claim 2, characterized in that, The grouting wheel (6) is mounted on the wheel bracket (9). Guide rods (7) are provided on both sides of the wheel bracket (9). A through hole for cooperating with the guide rod (7) is provided on the mounting bracket (5). A limiting nut is provided above the mounting bracket (5) on the guide rod (7). A spring (8) is sleeved on the outside of the guide rod (7) located below the mounting bracket (5). The spring (8) is located between the wheel bracket (9) and the mounting bracket (5).
4. A double-joint grouting device for masonry engineering according to claim 3, characterized in that, The stitching wheel (6) is located between the first optical axis (3) and the second optical axis (4) and is positioned lower.
5. A double-joint grouting device for masonry engineering according to claim 1, characterized in that, Damping is provided between the second optical axis (4) and the threaded sleeve (2).
6. A double-joint grouting device for masonry engineering according to claim 1, characterized in that, Mounting plates (10) are provided at both ends of the first optical axis (3) and the second optical axis (4), and the two ends of the first optical axis (3) and the second optical axis (4) are respectively fixed on the mounting plates (10).
7. A double-joint grouting device for masonry engineering according to claim 1, characterized in that, The handheld lever (1) is a telescopic lever.
Citation Information
Patent Citations
Masonry engineering double-joint pointing device and construction method
CN112983023A