Concrete protection layer control device for reducing surface cracks

Abstract

The utility model relates to a concrete protection layer control device for reducing surface cracks. The concrete protection layer control device for reducing the surface cracks comprises a concrete thickness control block, a concrete thickness control cover, transverse anti-crack net lines and longitudinal anti-crack net lines, the transverse anti-crack net lines and the longitudinal anti-crack net lines are crossed, and the concrete thickness control block and the concrete thickness control cover are connected to the crossed position in a buckled mode; the clamping groove is connected with the steel bar to fix the concrete thickness control block; the second tenon is in mortise joint with the tenon groove, so that the concrete thickness control cover is connected with the concrete thickness control block, the transverse anti-crack net lines and the longitudinal anti-crack net lines are fixed, tensioning of the longitudinal anti-crack net lines and the transverse anti-crack net lines is achieved, then stress on the concrete surface is counteracted, and elimination of cracks on the concrete structure surface is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, and in particular relates to a concrete protective layer control device for reducing surface cracks. Background Art

[0002] At present, in the process of construction projects, for concrete structures, the surface is mainly ensured to be free of cracks by adding reinforcement bars, and the concrete protective layer is ensured by using prefabricated concrete blocks. However, there are problems of high cost and uneven quality standards, which easily lead to quality risks such as cracks on the concrete surface and insufficient concrete protective layer.

[0003] The invention with the authorization announcement number CN107143093B discloses a colored plain concrete anti-cracking protection system, including horizontal anti-cracking steel bars and vertical anti-cracking steel bars tied to the outer layer of the colored plain concrete stress-bearing steel bars, and a concrete steel bar protective layer positioning device; the horizontal anti-cracking steel bars are tied to the outside of the vertical stress-bearing steel bars and between two adjacent horizontal stress-bearing steel bars; the vertical anti-cracking steel bars are tied to the inside of the horizontal anti-cracking steel bars and between two adjacent vertical stress-bearing steel bars, and cross with the horizontal anti-cracking steel bars; the concrete steel bar protective layer positioning device is made of nylon material as a whole, and is composed of a support plate, a slot, a leg and a rib plate; four slots distributed in a cross are vertically connected on the support plate, and the slots are opposite to each other and are arranged in a high and low staggered manner, and the slots of the two relatively high slots are located on a horizontal straight line, wherein a U-shaped support plate is arranged in the slots of the two relatively high slots; the corresponding four slot positions under the support plate are vertically connected with Four legs, the height of the legs is adapted to the thickness of the steel bar protective layer, the four legs are interconnected by four ribs, the four ribs are cross-shaped and intersect at the vertical axis of the device, and the ribs at the lower part of the legs are concave; the concrete steel bar protective layer positioning device is fixed at the cross intersection of the vertical anti-cracking steel bars and the horizontal anti-cracking steel bars, the horizontal anti-cracking steel bars are inserted into two relatively low slots, the vertical anti-cracking steel bars are inserted into two relatively high slots, and the concrete steel bar protective layer positioning device is firmly tied to the vertical anti-cracking steel bars and the horizontal anti-cracking steel bars by binding wires, and the ends of the binding wires are placed in the concave part of the lower part of the positioning device; the support plate is cross-shaped, and the thickness of the support plate and the ribs is 2 to 5 mm; the notch of the slot is U-shaped, and the vertical anti-cracking steel bars and the horizontal anti-cracking steel bars of the colored plain concrete anti-cracking protection system have no connection and matching relationship with the steel bars of the main body, the structure is unstable, and it is easy to move back and forth, resulting in complicated operation procedures and low construction efficiency. Utility Model Content

[0004] The utility model aims to provide a concrete protective layer control device for reducing surface cracks to solve the technical problems of complex operation flow and low construction efficiency of the anti-cracking protection system of colored plain concrete.

[0005] In order to achieve the above objectives, the technical solution adopted by the utility model is:

[0006] A concrete protective layer control device for reducing surface cracks comprises a concrete thickness control block, a concrete thickness control cover, and a transverse anti-cracking mesh wire and a longitudinal anti-cracking mesh wire, wherein the transverse anti-cracking mesh wire and the longitudinal anti-cracking mesh wire are cross-intersected, and the concrete thickness control block and the concrete thickness control cover are buckled at the cross-intersection; the concrete thickness control block is provided with a card slot, a plurality of tenons 1, a tenon groove and a mesh wire groove 1, the tenon 1 surrounds the tenon groove, and the mesh wire groove 1 is located in the tenon groove; the concrete thickness control cover is provided with a plurality of tenons 2 and a mesh wire groove 2, the mesh wire groove 2 is located on the tenon 2, the card slot is connected to a steel bar to fix the concrete thickness control block; the tenon 2 is mortised with the tenon groove, the transverse anti-cracking mesh wire and the longitudinal anti-cracking mesh wire are passed through a cavity surrounded by the mesh wire groove 1 and the mesh wire groove 2, so that the concrete thickness control cover is connected to the concrete thickness control block to fix the transverse anti-cracking mesh wire and the longitudinal anti-cracking mesh wire.

[0007] Furthermore, the slot is arranged on the left side of the concrete thickness control block, the plurality of tenons are arranged on the right end of the concrete thickness control block, and the four tenons form a cross-shaped tenon groove.

[0008] Furthermore, the second tenon is a cross shape that matches the tenon groove, and the second tenon is arranged on the left side of the thickness control cover.

[0009] Furthermore, the slot is a U-shaped slot, and the opening of the slot is in the opposite direction to the tenon.

[0010] Furthermore, the concrete thickness control cover is provided with an escape space for escaping the tenon 1.

[0011] Furthermore, the first mesh cable groove and the second mesh cable groove are both cross-shaped through grooves to accommodate transverse anti-cracking mesh cables and longitudinal anti-cracking mesh cables.

[0012] Furthermore, the depth of the network cable groove 1 is greater than the depth of the tenon groove.

[0013] Beneficial effects of the utility model:

[0014] The utility model discloses a concrete protective layer control device for reducing surface cracks, which is connected to the steel bars through the slots, and the concrete thickness control block and the concrete thickness control cover are buckled at the cross intersection, so that the transverse anti-cracking mesh wire and the longitudinal anti-cracking mesh wire are fixed to the concrete thickness control block. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the separation structure of the concrete protective layer control device for reducing surface cracks in Example 1;

[0016] Figure 2 This is a schematic diagram of the combined structure of the concrete protective layer control device for reducing surface cracks in Example 1;

[0017] Figure 3 This is a schematic diagram of the actual installation structure of the concrete protective layer control device for reducing surface cracks in Example 1.

[0018] In the figure: 1. Concrete thickness control block; 2. Concrete thickness control cover; 3. Horizontal anti-cracking mesh wire; 4. Longitudinal anti-cracking mesh wire; 5. Rebar; 6. Slot; 7. Tenon 1; 8. Tenon groove; 9. Mesh wire groove 1; 10. Tenon 2; 11. Mesh wire groove 2. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] The implementation of the concrete protective layer control device for reducing surface cracks in the utility model is as follows: Figure 1-3 shown.

[0021] Example 1

[0022] The concrete protective layer control device for reducing surface cracks of this embodiment comprises a concrete thickness control block 1, a concrete thickness control cover 2, a transverse anti-cracking mesh line 3 and a longitudinal anti-cracking mesh line 4. The concrete thickness control block 1 and the concrete thickness control cover 2 are made of alkali-resistant plastic, and the transverse anti-cracking mesh line 3 and the longitudinal anti-cracking mesh line 4 are made of alkali-resistant glass fiber. According to the spacing of the steel bars 5 designed in the structure, the combined spacing of the concrete thickness control block 1 and the concrete thickness control cover 2 can be flexibly adjusted to meet different design conditions. For the concrete structure surface with concentrated stress, the combination of the steel bars 5, the concrete thickness control block 1 and the concrete thickness control cover 2 can be appropriately increased to better adapt to different stress areas in the same component. The transverse anti-cracking mesh line 3 and the longitudinal anti-cracking mesh line 4 are cross-crossed, and the concrete thickness control The concrete thickness control block 1 and the concrete thickness control cover 2 are buckled at the cross intersection; the concrete thickness control block 1 is provided with a card slot 6, a plurality of tenons 7, a tenon groove 8 and a mesh wire groove 9, the tenons 7 surround the tenon groove 8, and the mesh wire groove 9 is located in the tenon groove 8; the concrete thickness control cover 2 is provided with a plurality of tenons 2 10 and a mesh wire groove 2 11, the mesh wire groove 2 11 is located on the tenon 2 10, the card slot 6 is connected with the steel bar 5 to fix the concrete thickness control block 1; the tenon 2 10 is mortised with the tenon groove 8, the transverse anti-cracking mesh wire 3 and the longitudinal anti-cracking mesh wire 4 are passed through the cavity surrounded by the mesh wire groove 1 9 and the mesh wire groove 2 11, so that the concrete thickness control cover 2 is connected with the concrete thickness control block 1 to fix the transverse anti-cracking mesh wire 3 and the longitudinal anti-cracking mesh wire 4.

[0023] The slot 6 is arranged on the left side of the concrete thickness control block 1 and connected to the steel bar 5. The multiple tenons 7 are arranged on the right end of the concrete thickness control block 1. Four tenons 7 surround a cross-shaped tenon groove 8. The mesh wire groove 1 9 and the mesh wire groove 2 11 are both cross-shaped through grooves to accommodate the transverse anti-cracking mesh wire 3 and the longitudinal anti-cracking mesh wire 4. The tenon 2 10 is a cross that matches the tenon groove 8. The tenon 2 10 is arranged on the left side of the thickness control cover 2 and is mortised with the tenon groove 8 to achieve tensioning of the transverse anti-cracking mesh wire 3 and the longitudinal anti-cracking mesh wire 4, thereby offsetting the stress on the concrete surface and eliminating surface cracks in the concrete structure.

[0024] The slot 6 is a U-shaped slot, and the opening of the slot 6 is opposite to the direction of the tenon 7.

[0025] The concrete thickness control cover 2 is provided with an escape space for escaping the tenon 7.

[0026] The depth of the mesh cable groove 9 is greater than the depth of the tenon groove 8.

[0027] Working principle of the concrete cover control device for reducing surface cracks:

[0028] The thickness of the concrete protective layer is ensured by the combination of the concrete thickness control block 1 and the concrete thickness control cover 2, wherein the dimension from the right side of the slot 6 on the concrete thickness control block 1 to the outer surface of the concrete thickness control block 1 is the thickness of the concrete protective layer; the holes formed by the combination of the concrete thickness control block 1 and the concrete thickness control cover 2 are used to realize the tensioning of the longitudinal anti-cracking net 4 and the transverse anti-cracking net line 3, thereby offsetting the stress on the concrete surface and eliminating the surface cracks of the concrete structure.

[0029] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They 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. Therefore, they cannot be understood as limitations on the present invention.

[0030] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A concrete cover control device for reducing surface cracks, characterized in that: It comprises a concrete thickness control block, a concrete thickness control cover, and a transverse anti-cracking mesh wire and a longitudinal anti-cracking mesh wire, wherein the transverse anti-cracking mesh wire and the longitudinal anti-cracking mesh wire are cross-intersected, and the concrete thickness control block and the concrete thickness control cover are buckled at the cross-intersection; the concrete thickness control block is provided with a card slot, a plurality of tenons 1, a tenon groove and a mesh wire groove 1, the tenon 1 forms the tenon groove, and the mesh wire groove 1 is located in the tenon groove; the concrete thickness control cover is provided with a plurality of tenons 2 and a mesh wire groove 2, the mesh wire groove 2 is located on the tenon 2, the card slot is connected with the steel bar to fix the concrete thickness control block; the tenon 2 is mortised with the tenon groove, the transverse anti-cracking mesh wire and the longitudinal anti-cracking mesh wire are passed through a cavity surrounded by the mesh wire groove 1 and the mesh wire groove 2, so that the concrete thickness control cover is connected with the concrete thickness control block to fix the transverse anti-cracking mesh wire and the longitudinal anti-cracking mesh wire.

2. The concrete cover control device for reducing surface cracks according to claim 1, characterized in that: The slot is arranged on the left side of the concrete thickness control block, the plurality of tenons are arranged on the right end of the concrete thickness control block, and four tenons form a cross-shaped tenon groove.

3. The concrete cover control device for reducing surface cracks according to claim 2, characterized in that: The second tenon is a cross shape matched with the tenon groove, and the second tenon is arranged on the left side of the thickness control cover.

4. The concrete cover control device for reducing surface cracks according to claim 1, characterized in that: The slot is a U-shaped slot, and the opening of the slot is opposite to the direction of the tenon.

5. The concrete cover control device for reducing surface cracks according to claim 1, characterized in that: The concrete thickness control cover is provided with an escape space for escaping the tenon 1.

6. The concrete cover control device for reducing surface cracks according to claim 1, characterized in that: The first mesh cable groove and the second mesh cable groove are both cross-shaped through grooves to accommodate transverse anti-cracking mesh cables and longitudinal anti-cracking mesh cables.

7. The concrete cover control device for reducing surface cracks according to claim 1, characterized in that: The depth of the first network cable groove is greater than the depth of the tenon groove.

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