Tool capable of adjusting width of kerb joint control

The adjustable rubber pad with L-plates and U-slots provides uniform joint width control, addressing uneven gaps and material inconsistencies, ensuring durability and versatility in road edge stone installation.

CN223103428UActive Publication Date: 2025-07-15JINAN URBAN CONSTRUCTION GROUP CO LTD +1
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Patent Information

Application Number
CN202422402744.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-30
Publication Date
2025-07-15
Estimated Expiration
2034-09-30

AI Technical Summary

Technical Problem

Existing joint control tools are prone to cracking when installing concrete curbs, and it is difficult to adapt to curbs with narrow upper and wide upper sides, resulting in uneven joint widths and difficult to use conventional tools.

Method used

A rectangular rubber pad is designed, with long bumps and U-shaped slots on both sides, and an L-shaped plate can be inserted inside, combining the handle and anti-slip rubber strips to achieve seam width adjustment and installation stability.

Benefits of technology

Effectively control the width of the seam, wide application range, withstand installation knocking force, no cracking, adapt to narrow upper and wide curbs, low cost and easy to use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of municipal engineering, and particularly relates to a curb joint control width adjustable tool which comprises a rubber base plate, the upper portions of the left side face and the right side face of the rubber base plate are integrally provided with a long-strip-shaped protruding block and a U-shaped inserting groove in a vertically outward mode respectively, and a plurality of L-shaped plates can be inserted into the U-shaped inserting groove. A handle part is upwards integrally arranged on the rubber base plate, and a hollow opening is formed in the handle part. The tool can effectively control the seam width, the seam width can be adjusted, the application range is wide, the manufacturing cost is low, the use is convenient, the tool can be used for multiple times, and meanwhile, the seam control use of curbs with narrow upper parts and wide lower parts in partial regions is met.
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Description

Technical Field

[0001] The utility model belongs to the technical field of municipal engineering, and particularly relates to a tool for adjusting the width of a curb joint. Background Technique

[0002] According to the construction specifications, the joint width of stone curbs is controlled at 3 mm, the joint width of imitation stone curbs is controlled at 5 mm, and according to the provisions in the urban road atlas "05MR404 - Urban Roads - Curb Stones", the joint width of concrete curbs is controlled at 1 cm. At present, a rubber pad with 3M glue on one side is usually used as a joint control tool, or a plastic joint control tool is used for joint control. However, most of the concrete curbs installed on site use 1 cm plywood for joint control. However, the plywood is prone to cracking after being knocked, and due to different insertion depths, problems such as uneven joint width will occur.

[0003] In addition, due to regional manufacturing processes, sometimes the purchased curbs are wider at the bottom and narrower at the top, resulting in the gap between adjacent curbs being wider at the top and narrower at the bottom. None of the above-mentioned conventional joint control tools can be used, and there are difficulties in joint control. Summary of the Invention

[0004] The problem to be solved by the present invention is to overcome the deficiencies of the background technique and provide a tool for adjusting the width of a curb joint.

[0005] The present invention is realized through the following technical solutions:

[0006] A tool for adjusting the width of a curb joint includes a rectangular rubber backing plate. On the upper parts of the left and right side surfaces of the rubber backing plate, a long strip convex block and a U-shaped slot are integrally provided vertically and outward respectively. The long strip convex block and the U-shaped slot are both arranged along the width direction of the rubber backing plate. The bottom surfaces of the long strip convex block and the U-shaped slot are on the same horizontal plane. Several L-shaped plates can be inserted into the U-shaped slot; a handle part is integrally provided upward on the rubber backing plate. The handle part is located above the long strip convex block and the U-shaped slot, and the handle part is provided with a hollow opening.

[0007] Preferably, the thickness of the rubber backing plate gradually decreases from top to bottom.

[0008] Preferably, an anti-slip rubber strip is provided around the inner wall of the hollow opening.

[0009] Preferably, the L-shaped plate is made of stainless steel plate.

[0010] Preferably, the thickness of the L-shaped plate is 1 - 2 mm.

[0011] Preferably, the lengths of the long strip convex block and the U-shaped slot are both equal to the width of the rubber backing plate.

[0012] Advantages of the present invention:

[0013] 1. It can effectively control the seam width, the controlled seam width is adjustable, and it has a wide range of applications.

[0014] 2. It can resist the axial knocking force during installation, will not crack, and ensure the effectiveness of the tool.

[0015] 3. It meets the requirement of controlling the seam for the curbstone with a narrower upper part and a wider lower part in some areas.

[0016] 4. It has a low cost, is easy to use, and can be circulated and used multiple times. Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the overall structure of this embodiment;

[0018] Figure 2 It is a schematic diagram of the structure from another angle of this embodiment;

[0019] Figure 3 It is a schematic diagram of the structure of this embodiment after removing the L-shaped plate;

[0020] Figure 4 It is a schematic side view of the tool with an equal-thickness rubber cushion in this embodiment;

[0021] Figure 5 It is a schematic diagram of the L-shaped plate structure of this embodiment;

[0022] Figure 6 It is a schematic side view of the tool with a rubber cushion that is thicker at the top and thinner at the bottom in this embodiment.

[0023] In the figure, 1 is a rubber cushion, 2 is a long strip convex block, 3 is a U-shaped slot, 4 is an L-shaped plate, 5 is a handle part, 6 is a hollow opening, and 7 is an anti-slip rubber strip. Detailed Embodiment

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention.

[0025] The tool of this embodiment includes a rectangular rubber cushion 1 as a whole. On the upper parts of the left and right sides of the rubber cushion 1, a long strip convex block 2 and a U-shaped slot 3 are integrally provided outward perpendicular to the rubber cushion 1 respectively. The long strip convex block 2 and the U-shaped slot 3 are both arranged along the width direction of the rubber cushion 1. The width direction of the rubber cushion 1 is the same as the width direction of the curbstone. The bottom surfaces of the long strip convex block 2 and the U-shaped slot 3 are on the same horizontal plane, and the lengths of the convex block and the U-shaped slot 3 are both equal to the width of the rubber cushion 1.

[0026] A number of L-shaped plates 4 can be inserted into the above U-shaped slot 3. The L-shaped plates 4 are used to adjust the thickness of the tool, thereby adjusting the seam width. The L-shaped plates 4 can be made of stainless steel plates with a thickness of 1-2 mm. The seam width can be finely adjusted by inserting different numbers of L-shaped plates 4 into the U-shaped slot 3 to meet the control requirements of different seam widths. In addition, if there is a problem that the concrete curbstone in some purchased areas is narrower at the top and wider at the bottom, the thickness of the rubber cushion plate 1 can be gradually reduced from top to bottom during production to make the rubber cushion plate 1 wider at the top and narrower at the bottom, that is, the rubber cushion plate 1 is thicker at the top and thinner at the bottom, which matches the narrower top and wider bottom of the curbstone, so that the tool of the present invention can be used for controlling the seam of the curbstone with a narrower top and wider bottom.

[0027] A handle part 5 is provided above the rubber cushion plate 1, that is, the long strip bump 2 and the U-shaped slot 3 are integrally provided with the handle part 5 upwards. The handle part 5 is provided with a hollow opening 6, and the worker holds the hollow opening 6 to put the rubber cushion plate 1 in or take it out. Preferably, an anti-slip rubber strip 7 is provided around the inner wall of the hollow opening 6. The anti-slip rubber strip 7 can increase the friction force and also improve the comfort of the worker's operation.

[0028] During use, the tool is placed vertically downward on the side of the already installed curbstone, so that the side of the rubber cushion plate 1 where the long strip bump 2 is located is closely attached to the side of the already installed curbstone, and the lower surface of the long strip bump 2 is located on the upper surface of the already installed curbstone. Then, according to the seam control requirements, several L-shaped plates 4 are inserted downward into the U-shaped slot 3. If the thickness of the rubber cushion plate 1 is exactly equal to the required seam width, there is no need to insert the L-shaped plates 4. After adjusting the seam width, the pre-installed curbstone is placed at the installation position, so that the side of the pre-installed curbstone is closely attached to the L-shaped plates 4, and the lower surface of the U-shaped slot 3 is located on the upper surface of the pre-installed curbstone. After the pre-installed curbstone is adjusted to the correct position according to the tool of the present invention, the tool of the present invention is pulled out upwards and then the installation of the next curbstone can be carried out.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the above embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An adjustable tool for controlling the joint width of a curbstone, characterized in that: It includes a rectangular rubber backing plate (1). On the upper parts of the left and right side surfaces of the rubber backing plate (1), a long strip convex block (2) and a U-shaped slot (3) are integrally and vertically provided outward respectively. The long strip convex block (2) and the U-shaped slot (3) are both arranged along the width direction of the rubber backing plate (1). The bottom surfaces of the long strip convex block (2) and the U-shaped slot (3) are on the same horizontal plane. A number of L-shaped plates (4) can be inserted into the U-shaped slot (3); the rubber backing plate (1) is integrally provided with a handle part (5) upward. The handle part (5) is located above the long strip convex block (2) and the U-shaped slot (3), and the handle part (5) is provided with a hollow opening (6).

2. The curb joint width adjustable tool according to claim 1, characterized in that: The thickness of the rubber backing plate (1) gradually decreases from top to bottom.

3. The curb joint width adjustable tool according to claim 1 or 2, characterized in that: An anti-slip rubber strip (7) is provided around the inner wall of the hollow opening (6).

4. The curb joint width adjustable tool according to claim 1 or 2, characterized in that: The L-shaped plate (4) is made of stainless steel plate.

5. The curb joint width adjustable tool according to claim 1 or 2, characterized in that: The thickness of the L-shaped plate (4) is 1-2 mm.

6. The curb joint width adjustable tool according to claim 1 or 2, characterized in that: The lengths of the long strip convex block (2) and the U-shaped slot (3) are both equal to the width of the rubber backing plate (1).