Thickness control device for steel bar protective layer

Abstract

The utility model relates to the technical field of building construction, and discloses a thickness control device of a reinforcing steel bar protective layer, which comprises a top rod, a height adjusting rod, a bottom rod and a base, the height adjusting rod is connected between the top rod and the bottom rod, the height adjusting rod comprises an upper connecting rod, a lower connecting rod and an adjusting rod, the upper connecting rod is fixedly connected to the top rod, the upper connecting rod is connected with the upper portion of the adjusting rod in a sleeved mode through threads, the lower connecting rod is fixedly connected to the bottom rod, the lower connecting rod is connected with the lower portion of the adjusting rod in a sleeved mode through threads, and the base is detachably connected to the bottom of the bottom rod. The thickness of the upper layer and the lower layer of the steel bar protection layer can be conveniently and accurately controlled, repeated use can be achieved, and the integrality of a formed reinforced concrete structure is good.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a thickness control device for steel bar protective layers. Background Art

[0002] The existing control of the thickness of the steel bar protective layer usually places concrete cushion blocks or stools. The lower protective layer thickness is controlled by placing concrete cushion blocks on the formwork, and the upper protective layer thickness is controlled by erecting the upper steel bars on the stools. However, the concrete cushion blocks have low strength and poor durability, and their heights cannot be freely adjusted. A large number of cushion blocks need to be placed, resulting in a large workload. It is very difficult to achieve the same effect as the overall pouring in the combination of concrete and cushion blocks. The larger the size of the cushion block, the more likely it is to become a weak part. Content of the Utility Model

[0003] The purpose of the utility model is to provide a thickness control device for steel bar protective layers, which is convenient for accurately controlling the thickness of the upper and lower layers of the steel bar protective layer and can be reused.

[0004] To achieve the above purpose, the utility model provides a thickness control device for steel bar protective layers, which comprises a top rod, a height adjustment rod, a bottom rod and a base. The height adjustment rod is connected between the top rod and the bottom rod. The height adjustment rod comprises an upper connecting rod, a lower connecting rod and an adjustment rod. The upper connecting rod is fixedly connected to the top rod. The upper part of the upper connecting rod and the upper part of the adjustment rod are connected by threaded sleeve. The lower connecting rod is fixedly connected to the bottom rod. The lower part of the lower connecting rod and the lower part of the adjustment rod are connected by threaded sleeve. The base is detachably connected to the bottom of the bottom rod.

[0005] As a preferred scheme of the utility model, the upper part of the adjustment rod is provided with a first internal thread hole, the lower part of the adjustment rod is provided with a second internal thread hole, the lower part of the upper connecting rod is provided with a first thread section threadedly connected to the first internal thread hole, the upper part of the lower connecting rod is provided with a second thread section threadedly connected to the second internal thread hole, and the thread helix direction of the first thread section is the same as that of the second thread section.

[0006] As a preferred scheme of the utility model, the first internal thread hole communicates with the second internal thread hole.

[0007] As a preferred scheme of the utility model, there are two height adjustment rods, and the two height adjustment rods are respectively connected to both sides of the top rod. The upper connecting rod is perpendicular to the top rod, and the lower connecting rod is perpendicular to the bottom rod.

[0008] As a preferred scheme of the utility model, the bottom rod is provided with a mounting rod, the mounting rod is provided with a third thread section, and the base is provided with a mounting hole threadedly matched with the third thread section.

[0009] As a preferred solution of the present utility model, there are two installation rods, the installation rods correspond to the lower connecting rods one by one, and the axis of the installation rod coincides with the axis of the lower connecting rod.

[0010] As a preferred solution of the present utility model, the upper connecting rod and the top rod are integrally formed; the lower connecting rod and the bottom rod are integrally formed.

[0011] Compared with the prior art, the beneficial effects of the thickness control device for the steel bar protection layer in the embodiment of the present utility model are as follows:

[0012] The thickness control of the upper protection layer of the steel bars in the present utility model is achieved by adjusting the connection depth between the upper connecting rod and the upper part of the adjusting rod, and then adjusting the height of the top rod; the thickness control of the lower protection layer of the steel bars is achieved by adjusting the connection depth between the lower connecting rod and the lower part of the adjusting rod, and then adjusting the height of the bottom rod. Moreover, the setting of the base can facilitate the stable placement of the thickness control device, avoid the process of placing pads on the formwork, shorten the construction time, the thickness control device can be disassembled after the steel bars are placed, and it is not poured together with the concrete, and can be recycled. The formed reinforced concrete structure has good integrity; it can be seen that the present utility model is convenient for accurately controlling the thickness of the upper and lower layers of the steel bar protection layer and can be reused. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings of the embodiments will be briefly introduced below.

[0014] Figure 1 is a schematic structural diagram of a thickness control device for a steel bar protection layer provided by the present utility model;

[0015] Figure 2 is a front view of a thickness control device for a steel bar protection layer provided by the present utility model;

[0016] In the figure, top rod 1; height adjusting rod 2; upper connecting rod 21; lower connecting rod 22; adjusting rod 23; bottom rod 3; base 4; installation rod 5. Detailed Embodiments

[0017] The following combines the drawings and embodiments to further describe in detail the specific embodiments of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0018] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0019] As Figure 1 and 2 shown, a thickness control device for the steel bar protective layer in a preferred embodiment of the present utility model includes a top rod 1, a height adjustment rod 2, a bottom rod 3, and a base 4. The height adjustment rod 2 is connected between the top rod 1 and the bottom rod 3. The height adjustment rod 2 includes an upper connecting rod 21, a lower connecting rod 22, and an adjustment rod 23. The upper connecting rod 21 is fixedly connected to the top rod 1, and the upper part of the upper connecting rod 21 and the adjustment rod 23 are connected by a threaded sleeve. The lower connecting rod 22 is fixedly connected to the bottom rod 3, and the lower part of the lower connecting rod 22 and the adjustment rod 23 are connected by a threaded sleeve. The base 4 is detachably connected to the bottom of the bottom rod 3.

[0020] The control of the thickness of the protective layer on the upper part of the steel bar of the present utility model is achieved by adjusting the connection depth between the upper connecting rod 21 and the upper part of the adjustment rod 23, and then adjusting the height of the top rod 1; the control of the thickness of the protective layer on the lower part of the steel bar is achieved by adjusting the connection depth between the lower connecting rod 22 and the lower part of the adjustment rod 23, and then adjusting the height of the bottom rod 3. Moreover, the setting of the base 4 can facilitate the stable placement of the thickness control device, avoid the process of placing cushion blocks on the formwork, shorten the construction time, and avoid the production of a large number of cushion blocks with different thicknesses; after the steel bars are placed, the thickness control device can be disassembled and not poured together with the concrete, and can be recycled, and the formed reinforced concrete structure has good integrity; it can be seen that the present utility model is convenient for accurately controlling the thickness of the upper and lower layers of the steel bar protective layer and can be reused.

[0021] Exemplarily, a first internal threaded hole is provided in the upper part of the adjusting rod 23, and a second internal threaded hole is provided in the lower part of the adjusting rod 23. A first threaded section that is threadedly connected to the first internal threaded hole is provided in the lower part of the upper connecting rod 21, and a second threaded section that is threadedly connected to the second internal threaded hole is provided in the upper part of the lower connecting rod 22. The thread helix direction of the first threaded section is the same as that of the second threaded section, which can quickly thread-connect the adjusting rod 23 with the upper connecting rod 21 and the lower connecting rod 22. The upper part of the adjusting rod 23 can be first threadedly connected to the upper connecting rod 21 (or the lower connecting rod 22), and then the upper part of the adjusting rod 23 and the upper connecting rod 21, and the lower part of the adjusting rod 23 and the lower connecting rod 22 are synchronously threadedly connected again, so that the connection depths of the adjusting rod 23 with the upper connecting rod 21 and the lower connecting rod 22 are different; when the upper part of the adjusting rod 23 and the upper connecting rod 21, and the lower part of the adjusting rod 23 and the lower connecting rod 22 are synchronously threadedly connected again, the connection depths of the adjusting rod 23 with the upper connecting rod 21 and the lower connecting rod 22 are the same, which is convenient for the installation and height adjustment of the thickness control device.

[0022] Specifically, the first internal threaded hole communicates with the second internal threaded hole, which is convenient for the threaded connection of the adjusting rod 23 with the upper connecting rod 21 and the lower connecting rod 22, and simplifies the machining and manufacturing of the adjusting rod 23.

[0023] Exemplarily, there are two height adjusting rods 2, and the two height adjusting rods 2 are respectively connected to both sides of the top rod 1. The upper connecting rod 21 is perpendicular to the top rod 1, and the lower connecting rod 22 is perpendicular to the bottom rod 3, which improves the structural stability of the thickness control device.

[0024] Exemplarily, an installation rod 5 is provided on the bottom rod 3, and a third threaded section is provided on the installation rod 5. An installation hole that is in threaded cooperation with the third threaded section is provided on the base 4. By adjusting the connection depth between the installation rod 5 and the installation hole of the base 4, the position of the lower protective layer of the steel bar can be further adjusted.

[0025] Furthermore, there are two installation rods 5, and the installation rods 5 correspond to the lower connecting rods 22 one by one. The axis of the installation rod 5 coincides with the axis of the lower connecting rod 22, which improves the stability of the placement of the thickness control device.

[0026] Exemplarily, the upper connecting rod 21 and the top rod 1 are integrally formed; the lower connecting rod 22 and the bottom rod 3 are integrally formed, which further improves the structural stability of the thickness control device.

[0027] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connection" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0028] The above are only the preferred embodiments of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and substitutions can be made, and these improvements and substitutions should also be regarded as the protection scope of the present utility model.

Claims

1. A device for controlling the thickness of the steel bar protective layer, characterized in that, It includes a top rod, a height adjustment rod, a bottom rod and a base. The height adjustment rod is connected between the top rod and the bottom rod. The height adjustment rod includes an upper connecting rod, a lower connecting rod and an adjustment rod. The upper connecting rod is fixedly connected to the top rod. The upper connecting rod and the upper part of the adjustment rod are connected by screwing. The lower connecting rod is fixedly connected to the bottom rod. The lower connecting rod and the lower part of the adjustment rod are connected by screwing. The base is detachably connected to the bottom of the bottom rod.

2. The thickness control device for the steel bar protection layer according to claim 1, characterized in that, The upper part of the adjustment rod is provided with a first internal threaded hole, and the lower part of the adjustment rod is provided with a second internal threaded hole. The lower part of the upper connecting rod is provided with a first threaded section threadedly connected to the first internal threaded hole. The upper part of the lower connecting rod is provided with a second threaded section threadedly connected to the second internal threaded hole. The thread helix direction of the first threaded section is the same as that of the second threaded section.

3. The thickness control device for the steel bar protection layer according to claim 2, characterized in that, The first internal threaded hole communicates with the second internal threaded hole.

4. The thickness control device for the steel bar protection layer according to claim 2, characterized in that, There are two height adjustment rods, and the two height adjustment rods are respectively connected to both sides of the top rod. The upper connecting rod is perpendicular to the top rod, and the lower connecting rod is perpendicular to the bottom rod.

5. The thickness control device for the steel bar protective layer according to claim 4, characterized in that, An installation rod is provided on the bottom rod. The installation rod is provided with a third threaded section, and the base is provided with an installation hole threadedly matched with the third threaded section.

6. The thickness control device for the steel bar protective layer according to claim 5, characterized in that, There are two installation rods, and the installation rods correspond to the lower connecting rods one by one. The axis of the installation rod coincides with the axis of the lower connecting rod.

7. The thickness control device for the steel bar protection layer according to claim 1, characterized in that The upper connecting rod and the top rod are integrally formed; the lower connecting rod and the bottom rod are integrally formed.

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