Thickness adjusting device for reinforcing steel bar protective layer of bottom plate

Abstract

The utility model relates to a bottom plate reinforcing steel bar protective layer thickness adjusting device and a highway and municipal engineering reinforcing steel bar operation auxiliary tool, in particular to bridge and pipe gallery bottom plate reinforcing steel bar protective layer adjusting operation, which comprises a sleeve, an adjusting cylinder is connected to the top of the sleeve, the adjusting cylinder can rotate at the top of the sleeve, threads are arranged in the adjusting cylinder, and the adjusting cylinder can rotate around the sleeve. A handle is arranged on the adjusting cylinder; the lifting rod is provided with threads matched with the threads in the adjusting cylinder, the lifting rod is arranged in the sleeve and is in threaded connection with the adjusting cylinder, and the length of the lifting rod is larger than that of the sleeve; the lifting plate is fixedly connected to the lower portion of the sleeve, so that the lifting plate can rotate the adjusting cylinder through the handle, the position of the lifting rod in the sleeve is adjusted, the height of the lifting plate is adjusted, the bottom formwork can be protected against damage, and meanwhile the thickness of a bottom plate reinforcing steel bar protection layer can be adjusted by only one worker in a more labor-saving mode.

Description

Technical Field

[0001] This application relates to auxiliary tools for steel bar operations in highway and municipal engineering, and specifically to the operation of adjusting the steel bar protection layer of bridge and pipe gallery bottom plates. Background Art

[0002] Currently, during the steel bar construction process, a steel drill rod is mostly used to assist in adjusting the thickness of the steel bar protection layer. Since the existing tools are extremely easy to damage the formwork, it is necessary to repeatedly insert into the gap between the formwork and the steel bars many times, and it is not easy to exert force. Front-line workers often use brute force to insert the steel drill rod into the gap between the formwork and the steel bars, which is extremely easy to damage the formwork and affect the appearance quality of the cast product.

[0003] The inventor found during the process of implementing the technical solution of this application that the existing tools need to be repeatedly inserted into the gap between the formwork and the steel bars many times, which is extremely easy to damage the formwork and not easy to exert force.

[0004] Moreover, the reason why the existing tool, the steel drill rod, is easy to cause formwork damage when adjusting the thickness of the steel bar protection layer is that the force-bearing part of the steel drill rod in contact with the formwork is too small, and the stiffness of the steel drill rod is much greater than that of the formwork. When using the steel drill rod to adjust the thickness of the steel bar protection layer, there are technical problems of extremely easy formwork damage and difficult force exertion due to too small steel bar spacing. Summary of the Invention

[0005] The purpose of the present invention is to provide a device for adjusting the thickness of the bottom plate steel bar protection layer. By designing a device for adjusting the thickness of the bottom plate steel bar protection layer, it can protect the bottom formwork from being damaged while enabling a single worker to more easily adjust the thickness of the bottom plate steel bar protection layer. The specific solution is as follows:

[0006] A device for adjusting the thickness of the bottom plate steel bar protection layer includes:

[0007] A sleeve: The top of the sleeve is connected with an adjusting cylinder, enabling the adjusting cylinder to rotate on the top of the sleeve. The adjusting cylinder is provided with threads inside, and a handle is provided on the adjusting cylinder;

[0008] A lifting rod: The lifting rod is provided with threads matching the threads inside the adjusting cylinder. The lifting rod is arranged inside the sleeve and is threadedly connected with the adjusting cylinder. The length of the lifting rod is longer than that of the sleeve;

[0009] A lifting plate: The lifting plate is fixedly connected to the lower part of the sleeve, enabling the height of the lifting plate to be adjusted by rotating the adjusting cylinder through the handle, thereby adjusting the position of the lifting rod inside the sleeve.

[0010] Further, a gasket is provided at the bottom of the sleeve to avoid damage to the formwork by the device.

[0011] Further, a rubber anti-slip pad is provided at the bottom of the gasket to further enhance the protection effect of the device on the formwork surface.

[0012] Further, cross bars are fixed on both sides of the adjusting cylinder as handles, making it more convenient to rotate the adjusting cylinder.

[0013] Further, as an option, the lifting plate is fixedly connected to the lower part of the sleeve, and the gasket is fixedly connected to the lifting rod, so that the height of the sleeve can be increased by rotating the adjusting cylinder, and then the height of the lifting plate can be increased.

[0014] Further, as another option, limiting grooves are provided on both sides of the bottom of the sleeve, and connecting rods are fixedly connected to both sides of the bottom of the lifting rod, so that the connecting rods can move up and down in the limiting grooves provided on both sides of the bottom of the sleeve. A lifting plate is fixedly connected to the connecting rod. The gasket is fixedly connected to the bottom surface of the sleeve, so that when the adjusting cylinder is rotated, due to the relationship between the connecting rod and the limiting groove, the lifting rod can adjust the height of the lifting rod in the sleeve by rotating the adjusting cylinder, and then adjust the position of the lifting plate in the limiting groove.

[0015] Further, in this application, the sleeve is a 48mm steel pipe, and the lifting plate is a steel plate with a length of 100mm, a thickness of 10mm, and a width of 18mm. This size is the preferred size obtained by the inventor through experiments. Those skilled in the art can adjust the specific specifications of each component according to the specific specifications of the bottom plate steel bar protective layer in on-site construction.

[0016] Compared with the prior art, a device for adjusting the thickness of the bottom plate steel bar protective layer of the present utility model has the following beneficial effects:

[0017] This application provides a device for adjusting the thickness of the bottom plate steel bar protective layer. By applying the device for adjusting the thickness of the bottom plate steel bar protective layer, it becomes faster and more labor-saving to adjust the thickness of the steel bar protective layer, improving work efficiency. At the same time, the turnover times of the formwork during construction are increased, and the damage rate of the formwork is reduced, which has been widely praised by front-line operators and relevant units. Description of the Drawings

[0018] Figure 1 is a schematic diagram of the use state of the present utility model;

[0019] Figure 2 is a sectional view of the first embodiment of the patent of the present utility model;

[0020] Figure 3 is a sectional view of the second embodiment of the patent of the present utility model;

[0021] Among them, 1. Sleeve, 2. Adjusting cylinder, 3. Handle, 4. Lifting rod, 5. Lifting plate, 6. Gasket, 7. Limiting groove, A. Bottom formwork, B. Steel bar protective layer. Detailed Embodiments

[0022] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] In the description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, the terms "installation", "provided with", "sleeved / connected", "connection", etc. should be understood in a broad sense. For example, "connection" 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.

[0024] Embodiment 1: A device for adjusting the thickness of the bottom plate steel bar protection layer B, comprising:

[0025] Sleeve 1: A regulating cylinder 2 is connected to the top of the sleeve 1, enabling the regulating cylinder 2 to rotate on the top of the sleeve 1. The regulating cylinder 2 is provided with threads inside, and a handle 3 is provided on the regulating cylinder 2. Cross bars are fixed on both sides of the regulating cylinder 2 as the handle 3 to make it more convenient to rotate the regulating cylinder 2.

[0026] Lifting rod 4: Threads matching the internal threads of the regulating cylinder 2 are provided on the lifting rod 4. The lifting rod 4 is arranged inside the sleeve 1 and is in threaded connection with the regulating cylinder 2. The length of the lifting rod 4 is longer than that of the sleeve 1.

[0027] Lifting plate 5: The lifting plate 5 is fixedly connected to the lower part of the sleeve 1, enabling the height of the lifting plate 5 to be adjusted by rotating the regulating cylinder 2 through the handle 3, thereby adjusting the position of the lifting rod 4 inside the sleeve 1.

[0028] Wherein: The lifting plate 5 is fixedly connected to the lower part of the sleeve 1, the gasket 6 is fixedly connected to the lifting rod 4, and a rubber anti-slip pad is provided at the bottom of the gasket 6 to further enhance the protection effect of the device on the template surface, enabling the height of the sleeve 1 to be increased by rotating the regulating cylinder 2 and then increasing the height of the lifting plate 5.

[0029] Embodiment 2: A device for adjusting the thickness of the bottom plate steel bar protection layer B, comprising:

[0030] Sleeve 1: The top of the sleeve 1 is connected to an adjusting cylinder 2, enabling the adjusting cylinder 2 to rotate on the top of the sleeve 1. The adjusting cylinder 2 is provided with internal threads, and a handle 3 is provided on the adjusting cylinder 2. Cross bars are fixed on both sides of the adjusting cylinder 2 as the handle 3 to make it more convenient to rotate the adjusting cylinder 2;

[0031] Lifting rod 4: The lifting rod 4 is provided with threads matching the internal threads in the adjusting cylinder 2. The lifting rod 4 is arranged inside the sleeve 1 and is threadedly connected to the adjusting cylinder 2. The length of the lifting rod 4 is longer than that of the sleeve 1;

[0032] Lifting plate 5: The lifting plate 5 is fixedly connected to the lower part of the sleeve 1, enabling it to rotate the adjusting cylinder 2 through the handle 3, and then adjust the position of the lifting rod 4 inside the sleeve 1 to adjust the height of the lifting plate 5;

[0033] Among them: Limited slots 7 are opened on both sides of the bottom of the sleeve 1. The lifting plate 5 is fixedly connected to both sides of the bottom of the lifting rod 4 at the lower part of the sleeve 1 through a connecting rod, so that the lifting plate 5 is fixed at the lower part of the sleeve 1. Connecting rods are fixedly connected to both sides of the bottom of the lifting rod 4, enabling the connecting rods to move up and down in the limited slots 7 opened on both sides of the bottom of the sleeve 1. A lifting plate 5 is fixedly connected to the connecting rods. A gasket 6 is fixedly connected to the bottom surface of the sleeve 1. A rubber anti-slip pad is provided at the bottom of the gasket 6 to further enhance the protection effect of the device on the template surface. When rotating the adjusting cylinder 2, due to the relationship between the connecting rod and the limited slot 7, the lifting rod 4 can adjust the height of the lifting rod 4 inside the sleeve 1 by rotating the adjusting cylinder 2, and then adjust the position of the lifting plate 5 in the limited slot 7.

[0034] In addition, the following technical solutions are also disclosed based on the above embodiments of the utility model;

[0035] The handle 3 of this application can also be in various shapes such as a rotating wheel, an L-shaped handle 3, etc., as long as it can play the role of conveniently rotating the adjusting cylinder 2. Those skilled in the art can select according to their needs.

[0036] Between the adjusting cylinder 2 and the sleeve 1 of the present application, the positioning ring and the groove can be used in cooperation with each other, or the limiting block can be fixedly spliced on the outside thereof to realize that the adjusting cylinder 2 can rotate on the top of the sleeve 1. Taking the limiting block as an example, those skilled in the art can adopt two limiting blocks that fit the joints of the adjusting cylinder 2 and the sleeve 1. The upper and lower sides of the inner wall of the limiting block are provided with positioning grooves. After the two limiting blocks are joined together, two circular positioning grooves with different sizes can be formed on the inner wall. The bottom of the adjusting cylinder 2 and the upper part of the sleeve 1 are respectively provided with positioning rings that match the positioning grooves. During use, the two limiting blocks can be joined together, and the positioning rings at the bottom of the adjusting cylinder 2 and the upper part of the sleeve 1 can be stuck in the positioning grooves, and they can be fixedly connected by means of threaded connection, welding, etc., so that the adjusting cylinder 2 can rotate inside the sleeve 1 under the action of the limiting block and its axial movement on the sleeve 1 can be restricted.

[0037] The using method of the present utility model is as follows:

[0038] Since the bottom plate steel bars belong to a reticular structure, during use, the device needs to be inserted into the steel bar protection layer B first and its gasket 6 is made to contact the bottom formwork A, and then the position of the device is adjusted so that the lifting plate is located below the steel bars to be adjusted. The adjusting cylinder 2 is rotated through the handle 3 to drive the lifting plate to rise, so that the lifting plate contacts the steel bars and raises the position of the steel bars. The prepared cushion blocks are stuffed under the steel bars, and the adjusting cylinder 2 is reversed to lower the lifting plate so that the steel bars are supported by the cushion blocks and the device is taken out.

[0039] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

1. A device for adjusting the thickness of the bottom plate steel bar protection layer, characterized in that, Comprising: Sleeve: The top of the sleeve is connected with an adjusting cylinder, enabling the adjusting cylinder to rotate on the top of the sleeve. The adjusting cylinder is provided with internal threads, and a handle is provided on the adjusting cylinder. Lifting rod: The lifting rod is provided with threads matching the internal threads in the adjusting cylinder. The lifting rod is arranged inside the sleeve and is threadedly connected to the adjusting cylinder. The length of the lifting rod is longer than that of the sleeve. Lifting plate: The lifting plate is fixedly connected to the lower part of the sleeve.

2. The thickness adjustment device for the bottom plate steel bar protection layer according to claim 1, characterized in that, A gasket is provided at the bottom of the sleeve.

3. The thickness adjustment device for the bottom plate steel bar protection layer according to claim 2, wherein A rubber anti-slip pad is provided at the bottom of the gasket.

4. The thickness adjusting device for the bottom plate steel bar protective layer according to claim 1, characterized in that, Cross bars are fixed on both sides of the adjusting cylinder as handles.

5. The thickness adjusting device for the bottom plate steel bar protection layer according to claim 2, wherein The lifting plate is fixedly connected to the lower part of the sleeve.

6. The thickness adjusting device for the bottom plate steel bar protection layer according to claim 5, characterized in that, The gasket is fixedly connected to the lifting rod.

7. The thickness adjusting device for the bottom plate steel bar protection layer according to claim 2, wherein, Limit slots are opened on both sides of the bottom of the sleeve. Connecting rods are fixedly connected to both sides of the bottom of the lifting rod, enabling the connecting rods to move up and down in the limit slots opened on both sides of the bottom of the sleeve. A lifting plate is fixedly connected to the connecting rods.

8. The thickness adjustment device for the bottom plate steel bar protection layer according to claim 7, characterized in that, The gasket is fixedly connected to the bottom surface of the sleeve.

Images