Size measuring tool

Abstract

The utility model relates to a dimension measuring tool, which is used for measuring a spherical surface of a valve clack of a safety valve, the dimension measuring tool comprises a base part and two measuring parts which are formed by extending downwards from the base part, a measuring surface is formed on the lower end surface of each measuring part, and the measuring surface forms a specific arc. The measuring surface is formed on the lower end surface of the measuring part, so that when the size measuring tool is used, the measuring can be realized only by attaching the measuring surface to the spherical surface of the safety valve clack, the process of measuring the spherical surface of the safety valve clack is simplified, the measuring efficiency is improved, and the measuring accuracy is improved. As the measurement condition of the spherical surface can be obtained only by observing the fitting degree between the measurement surface and the spherical surface, the measurement is not influenced by the technical level of a measurer, and compared with the prior art, the measurement accuracy is improved.

Description

Technical Field

[0001] The utility model relates to a size measuring tool. Background Art

[0002] The disc is an important component inside the safety valve. The close fit between the disc and the valve seat ensures the normal sealing, opening and closing of the safety valve. Therefore, accurately measuring the spherical size of the safety valve disc is an important step to ensure its performance and quality.

[0003] Traditional measurement tools often use simple contact measurement methods, such as using vernier calipers or micrometers to directly measure the diameter or curvature of the valve disc's spherical surface. This method is not only cumbersome to operate, but the measurement accuracy is easily affected by human factors, such as the measurer's technical level, the accuracy of the measuring tool, and errors in the measurement process. Utility Model Content

[0004] The purpose of the utility model is to provide a dimension measuring tool which simplifies the measuring process.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a dimension measuring tool for measuring the spherical surface of a safety valve disc, the dimension measuring tool comprising a base and two measuring parts extending downward from the base, a measuring surface being formed on the lower end surface of the measuring part, and the measuring surface forming a specific arc shape.

[0006] Furthermore, the base and the measuring portion enclose a relief cavity for accommodating the valve head of the safety valve.

[0007] Furthermore, the measuring parts are symmetrically arranged on both sides of the avoidance cavity.

[0008] Furthermore, the dimension measuring tool further includes a measuring insert, and the measuring insert is used to be inserted between the measuring surface and the spherical surface.

[0009] Furthermore, a flexible material is provided in the avoidance cavity.

[0010] Furthermore, the dimension measuring tool further includes a gripping portion formed on the base.

[0011] Furthermore, the gripping portion is a recessed portion formed by recessing from a side wall of the base.

[0012] The beneficial effect of the utility model is that by forming a measuring surface on the lower end face of the measuring part, when using the size measuring tool, it is only necessary to fit the measuring surface to the spherical surface of the safety valve disc to achieve measurement, thereby helping to simplify the measurement process of the spherical surface of the safety valve disc and improving the measurement efficiency. Moreover, since it is only necessary to observe the fit between the measuring surface and the spherical surface to know the measurement status of the spherical surface, it is not affected by the technical level of the measurer, and compared with the existing technology, the measurement accuracy is improved.

[0013] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of a dimension measuring tool in use according to an embodiment of the present invention. DETAILED DESCRIPTION

[0015] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0016] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 internal communication between 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. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0018] See Figure 1 A dimension measuring tool 10, shown in a preferred embodiment of the present application, is used to measure the spherical surface 21 of a safety valve disc. The dimension measuring tool 10 comprises a base 11 and two measuring sections 12 extending downward from the base 11. The lower end surfaces of the measuring sections 12 are formed with measuring surfaces 121, which form a specific arc shape. This specific arc shape is designed based on a reference dimension. Generally speaking, the measuring surface 121 completely aligns with the spherical surface 21 of the reference dimension.

[0019] By forming a measuring surface 121 on the lower end surface of the measuring portion 12, when using the dimension measuring tool 10, measurement can be achieved by simply fitting the measuring surface 121 to the spherical surface 21 of the safety valve disc, thereby helping to simplify the measurement process of the spherical surface 21 of the safety valve disc and improving measurement efficiency. In addition, since the measurement status of the spherical surface 21 can be obtained by only observing the fit between the measuring surface 121 and the spherical surface 21, it is not affected by the technical level of the measurer, thereby improving the measurement accuracy compared with the prior art.

[0020] In this embodiment, the dimension measuring tool 10 further includes a gripping portion 13 formed on the base 11 to facilitate operation by an operator. The gripping portion 13 is a recessed portion formed from a side wall of the base 11 .

[0021] The dimensional measurement tool 10 also includes measuring inserts (not shown) for insertion between the measuring surface 121 and the spherical surface 21. Multiple measuring inserts are available, each of which can be the same or different in size. The measuring inserts are marked with thickness indicators, indicating the thickness of the thin piece. During use, the operator inserts an appropriate number of measuring inserts based on the gap between the measuring surface 121 and the spherical surface 21. The operator then determines the gap between the measuring surface 121 and the spherical surface 21 based on the number and size of the inserted measuring inserts to determine the fit between the two.

[0022] It should be noted that only two measuring sections 12 are provided to facilitate observation of the fit between the measuring surface 121 and the spherical surface 21. In this embodiment, the measuring sections 12 are symmetrically arranged, forming an inverted U-shape with the base 11. This prevents the measuring sections 12 from deviating outward relative to the base 11. In this embodiment, the measuring sections 12 and the base 11 are an integrated structure made of metal. Specifically, the measuring sections 12 and the base 11 are formed by cutting and processing a section of round steel.

[0023] In this embodiment, the base 11 and the measuring part 12 are surrounded by a bypass chamber 14 for accommodating the valve head 22 of the safety valve, and the measuring part 12 is symmetrically arranged on both sides of the bypass chamber 14. By providing the bypass chamber 14 to accommodate the valve head 22 of the safety valve, the smooth progress of the measurement operation is ensured. A flexible material (not shown) is provided in the bypass chamber 14. By adding a flexible material inside the bypass chamber 14, the valve head 22 of the safety valve is protected from damage. The flexible material is an elastic cotton attached to the wall of the bypass chamber 14. In other embodiments, elastic cotton can also be provided on part of the wall of the bypass chamber 14. Generally speaking, the depth of the bypass chamber 14 is greater than the part of the safety valve that penetrates into the bypass chamber 14 during measurement. In this way, the top wall of the bypass chamber 14 usually does not contact the valve head 22 of the safety valve, and elastic cotton does not need to be provided on the top wall.

[0024] By using the dimensional measurement tool 10, the dimensional accuracy of the safety valve disc is guaranteed, making the safety valve more stable during performance testing. By accurately measuring the spherical surface 21 of the safety valve disc, the disc is ensured to fit the inclined surface of the recoil disc, preventing the disc from getting stuck during the opening process. This ensures the stable opening of the safety valve and prevents the disc from deviating from the center of the recoil disc after the safety valve is opened, which could cause leakage after the safety valve disc returns to its seat.

[0025] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0026] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A size measuring tool for measuring the spherical surface of a safety valve disc, characterized in that: The dimension measuring tool comprises a base and two measuring parts extending downward from the base, wherein a measuring surface is formed on the lower end surface of the measuring part, and the measuring surface forms a specific arc shape.

2. The dimension measuring tool according to claim 1, characterized in that: The base and the measuring part are surrounded to form a relief cavity for accommodating the valve head of the safety valve.

3. The dimension measuring tool according to claim 2, characterized in that: The measuring parts are symmetrically arranged on both sides of the avoidance cavity.

4. The dimension measuring tool according to claim 2, characterized in that: The dimension measuring tool further includes a measuring insert, which is used to be inserted between the measuring surface and the spherical surface.

5. The dimension measuring tool according to claim 2, characterized in that: A flexible material is arranged in the avoidance cavity.

6. The dimension measuring tool according to claim 1, characterized in that: The sizing tool further includes a gripping portion formed on the base.

7. The dimension measuring tool according to claim 6, characterized in that: The gripping portion is a recessed portion formed by being recessed from the side wall of the base.

8. The dimension measuring tool according to claim 6, characterized in that: The base and the measuring part are an integrated structure, and the base and the measuring part are made of metal material.

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