Pipeline bell and spigot inner diameter measuring device

Abstract

The utility model belongs to the field of bell and spigot pipe measurement, and discloses a pipeline bell and spigot inner diameter measuring device, which comprises two parallel support plates, a plurality of connecting rods and a plurality of connecting rods, the fixed ends of the two supporting plates are fixedly connected with the horizontal transverse plates respectively, the distances between the free ends of the two supporting plates and the horizontal transverse plates are equal, and the horizontal transverse plates are perpendicular to the supporting plates. The edge folding detection plate and the groove detection plate are both parallel to the supporting plate, and the distance between the free end of the edge folding detection plate and the horizontal transverse plate is smaller than the distance between the groove detection plate and the horizontal transverse plate; the flanging detection plate and the groove detection plate are provided with through holes, and the horizontal transverse plate passes through the through holes and is connected with the flanging detection plate and the groove detection plate. The device is simple in structure, can be used for detecting whether the inner wall of the pipe fitting with the folded edge and the groove is qualified or not by fitting the folded edge and the groove aiming at the problem that the folded edge and the groove of the socket are inconvenient to measure due to shapes, and is convenient to operate and accurate in detection.

Description

Technical Field

[0001] This utility model belongs to the field of pipe measurement, specifically relating to a device for measuring the inner diameter of pipe sockets. Background Technology

[0002] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and is not necessarily to be construed as an admission or in any way implying that such information constitutes prior art known to those skilled in the art.

[0003] In recent years, with the rapid development of urban construction and large-scale water conservancy projects in my country, the requirements for pipe materials and construction have gradually increased. Welded pipes have been gradually replaced by spigot and socket pipes due to the high difficulty of welding construction, low construction efficiency, and limitations of welders' skill levels. Spigot and socket steel pipes have good connection performance, resistance to geological settlement, and reliable sealing, which can meet the pipeline sealing requirements. At the same time, spigot and socket connection construction is simple and widely used in industrial, coal mining, and municipal fields.

[0004] Pipe socket joints consist of a socket and a spigot. There are certain requirements for the inner and outer diameters of the socket and spigot. In the manufacturing process of the pipe socket, the end of the socket is often cut into a folded edge and a groove. The height of the folded edge and the depth of the groove significantly affect the installation feasibility and sealing performance of the pipe socket joint. Therefore, the dimensions of the folded edge and groove of the pipe socket joint require high precision. They need to be accurately measured, and the dimensions of the folded edge and groove need to be further processed and adjusted based on the measurement results.

[0005] In existing technologies, the measurement of the flanges and grooves of pipe socket joints is often done using conventional calipers or rulers. However, due to the irregular shape of the flanges and grooves at the socket processing area, these tools are difficult to accurately detect or measure the dimensions of the flanges and grooves, making the operation inconvenient and directly affecting the product qualification rate and even the product processing efficiency. Utility Model Content

[0006] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a device for measuring the inner diameter of pipe sockets, at least solving the problem of inconvenient measurement operations at the folded edges and grooves of the sockets.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows:

[0008] A device for measuring the inner diameter of a pipe socket, comprising:

[0009] Two parallel support plates, each support plate having a fixed end and a free end; the fixed ends of the two support plates are respectively fixedly connected to a horizontal plate, the free ends of the two support plates are equidistant from the horizontal plate, and the horizontal plate is set perpendicular to the support plates.

[0010] The folding detection plate and the groove detection plate are both set parallel to the support plate. The distance between the free end of the folding detection plate and the horizontal plate is less than the distance between the groove detection plate and the horizontal plate.

[0011] Both the folding detection plate and the groove detection plate are provided with through holes, and a horizontal plate passes through the through holes to connect with the folding detection plate and the groove detection plate.

[0012] The device of this invention addresses the difference between the inner diameter of the socket flange and the inner diameter of the groove, resulting in unequal distances between the horizontal plate and the flange, and between the horizontal plate and the groove. Therefore, the lengths of the flange detection plate and the groove detection plate are pre-set according to the specific socket model. Both support plates are placed against the inner wall of the sealing platform at the rear end of the socket. Since the sealing platform is a cylindrical structure with equal front and rear radii, the two support plates of equal height abut against the inner wall of the sealing platform, keeping the horizontal plate parallel to the socket axis. The flange detection plate and the groove detection plate are then placed against the inner edges of the flange and groove, respectively. By observing the distances between the flange detection plate and the groove detection plate and the pipe wall, the dimensions of the socket flange and groove are checked for compliance.

[0013] In some implementations, the free end of the support plate has a tapered structure.

[0014] In some implementations, the free ends of both the folded edge detection plate and the groove detection plate are tapered.

[0015] In some implementations, the tip of the tapered structure is set to a plane.

[0016] The tapered structure with a flat tip increases the contact area between the detection plate and support plate and the inner wall of the socket pipe, reducing measurement errors and increasing detection accuracy.

[0017] In some implementations, the folding detection plate is fixedly connected to the horizontal plate, and the groove detection plate is fixedly connected to the horizontal plate.

[0018] The folding detection plate and the groove detection plate are fixedly connected to the horizontal plate, making the device a whole, which makes the device more portable and reduces the difficulty of operation.

[0019] In some implementations, the folding detection plate is slidably connected to the horizontal plate, and the groove detection plate is slidably connected to the horizontal plate.

[0020] In some implementations, the fold detection plate and the groove detection plate are provided with scales.

[0021] By setting scales on the folding detection plate and the groove detection plate and sliding them perpendicularly to the horizontal plate, the height of the fold and the depth of the groove can be accurately detected, which facilitates subsequent processing.

[0022] In some embodiments, the folding detection plate is also horizontally slidably connected to the horizontal cross plate, and the groove detection plate is also horizontally slidably connected to the horizontal cross plate.

[0023] The device allows the flange inspection plate and groove inspection plate to slide horizontally against the horizontal plate, enabling it to inspect more types and sizes of pipe sockets.

[0024] In some implementations, a level detection device is also provided on the horizontal plate.

[0025] In some implementations, the level detection device is a bubble level.

[0026] A level detection device is installed on the horizontal plate. Before use, the device is leveled to check whether the lengths of the two support plates are equal.

[0027] The beneficial effects of this utility model are as follows:

[0028] 1. The device of this utility model uses two support plates to contact the inner wall of the socket, keeping the horizontal plate parallel to the axis of the socket. Then, the folded edge detection plate and the groove detection plate are placed against the inner edge of the folded edge and the inner edge of the groove, respectively. By observing the distance between the folded edge detection plate and the groove detection plate and the pipe wall, the size of the socket folded edge and groove is checked to see if they are qualified. The device has a simple structure and can fit the inner wall of the pipe at the folded edge and groove to check whether they are qualified, which is convenient to operate and more accurate.

[0029] 2. The device of this utility model is equipped with a frustum structure, which increases the contact area between the detection plate and the support plate and the inner wall of the socket pipe, thereby increasing the accuracy of the detection.

[0030] 3. The device of this utility model can not only accurately detect the height of the fold and the depth of the groove, which is convenient for subsequent processing to correct errors; at the same time, it allows the fold detection plate and the groove detection plate to slide horizontally with the horizontal plate, so that the device can adapt to the detection of more types and sizes of pipe sockets, thus improving the applicability of the device. Attached Figure Description

[0031] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0032] Figure 1 This is a diagram of the socket pipe of this utility model;

[0033] Figure 2 This is a structural diagram of the pipe socket inner diameter measuring device according to an embodiment of the present utility model;

[0034] Figure 3 This is a schematic diagram illustrating the use of the pipe socket inner diameter measuring device according to an embodiment of the present invention;

[0035] The components are: 1. Horizontal plate; 2. Support plate one; 3. Groove inspection plate; 4. Support plate two; 5. Folded edge inspection plate; 6. Folded edge; 7. Groove; 8. Sealing platform; 9. Pipe socket. Detailed Implementation

[0036] In view of the problems in the prior art, such as the irregular shape of the socket flange and groove, making it difficult to accurately detect or measure whether the size of the flange and groove meets the standard, and the inconvenience of the detection operation, this utility model proposes a pipe socket inner diameter measuring device.

[0037] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be described in detail below with reference to specific embodiments.

[0038] like Figure 1 As shown, this utility model provides a device for measuring the inner diameter of a pipe socket, comprising:

[0039] Two support plates, namely support plate 1 2 and support plate 2 4, are arranged in parallel. Each support plate includes a fixed end and a free end. The fixed ends of both support plates are fixedly connected to the horizontal plate 1. Both support plates are arranged perpendicular to the horizontal plate 1. The free ends of both support plates are equidistant from the horizontal plate 1.

[0040] The folded edge detection plate 5 and the groove detection plate 3 are both set parallel to the support plate 2, that is, the folded edge detection plate 5 and the groove detection plate 3 are both set perpendicular to the horizontal plate 1. The distance between the free end of the folded edge detection plate 5 and the horizontal plate 1 is less than the distance between the groove detection plate 3 and the horizontal plate 1, so as to accommodate the height difference between the folded edge 6 and the groove 7 of the socket.

[0041] Both the folded edge detection plate 5 and the groove detection plate 3 are provided with through holes, and the horizontal plate 1 passes through the through holes and is connected to the folded edge detection plate 5 and the groove detection plate 3.

[0042] Optionally, the free end of the support plate is a conical structure, and the free ends of the folded edge detection plate 5 and the groove detection plate 3 are both conical structures. The free ends are all located at the lower part of the device and are in direct contact with the inner wall of the pipe. Preferably, the tip of the conical structure is set as a plane.

[0043] Since the inner wall of the pipe is curved, the conical structure reduces the error caused by the non-fitting of the detection plate with the curved inner wall. At the same time, the truncated cone structure further increases the contact area between the detection plate and the inner wall of the pipe, reducing the error caused by the unevenness of the inner wall of the pipe.

[0044] Optionally, in this embodiment, the folding detection plate 5 is fixedly connected to the horizontal plate 1, and the groove detection plate 3 is fixedly connected to the horizontal plate 1. This arrangement makes the device a whole, making the device more portable and reducing the difficulty of operation.

[0045] Optionally, in this embodiment, the folded edge detection plate 5 is vertically slidably connected to the horizontal plate 1, and the groove detection plate 3 is vertically slidably connected to the horizontal plate 1. The specific structure of this sliding connection is existing technology, and a matching setting of slide rail and protrusion can be adopted. For example, a slide rail is set on the horizontal plate 1, and a corresponding protrusion is set on the detection plate to realize the vertical sliding of the detection plate and the horizontal plate 1. In addition, a locking structure can be set on the slide rail to control the relative sliding of the detection plate and the horizontal plate 1.

[0046] Optionally, the folded edge detection plate 5 and the groove detection plate 3 are provided with scales.

[0047] The folding detection plate 5 and the groove detection plate 3 are equipped with scales and are slidably connected to the horizontal plate 1, which can accurately detect the height of the folding edge 6 and the depth of the groove 6, facilitating subsequent processing.

[0048] Optionally, the flange detection plate 5 is also horizontally slidably connected to the horizontal plate 1, and the groove detection plate 3 is also horizontally slidably connected to the horizontal plate 1. The specific structure of this sliding connection is existing technology and can be the same as, or different from, the connection structure between the flange detection plate 5 and the horizontal plate 1. The horizontal sliding of the flange detection plate 5 and the groove detection plate 3 with the horizontal plate 1 allows the device to adapt to the inspection of more types and sizes of pipe sockets 9.

[0049] Optionally, a level detection device is also provided on the horizontal plate 1, preferably a bubble level. The purpose of the bubble level is to ensure that the lengths of the support plate 2 and the support plate 4 are equal, so as to make the horizontal plate 1 parallel to the pipeline axis.

[0050] like Figure 2 As shown, after the socket of the working steel pipe is processed, the dimensions of the folded edge 6 and the groove 7 of the pipe socket 9 need to be measured using inspection tools. First, the free ends of the two support plates are placed close to the sealing platform 8 of the pipe socket 9, so that the horizontal plate 1 is parallel to the sealing platform 8. At this time, the horizontal plate 1 is also parallel to the axis of the pipe socket 9. Then, the folded edge inspection plate 5 and the groove inspection plate 3 are adjusted to be above the folded edge 6 and the groove 7, respectively.

[0051] When the folded edge detection plate 5 and the groove detection plate 3 of the device are fixedly connected to the horizontal plate 1, observe whether there are gaps between the folded edge detection plate 5 and the inner wall of the pipe of the folded plate, and between the groove detection plate 3 and the inner wall of the pipe of the groove. If there are gaps between the folded edge detection plate 5 and the inner wall of the pipe of the folded plate, it means that the pipe diameter of the folded plate is larger than the preset pipe diameter; if there are gaps between the groove detection plate 3 and the inner wall of the pipe of the groove, it means that the pipe diameter of the groove is larger than the preset pipe diameter. Both situations are unqualified and the Chengkou needs to be further processed and adjusted.

[0052] When the folded edge detection plate 5 and the groove detection plate 3 of the device are vertically slidably connected to the horizontal plate 1, adjust the folded edge detection plate 5 and the groove detection plate 3 until they are in contact with the inner wall of the pipe and read the corresponding scale value. The reading scale result represents the difference between the folded edge and the sealing platform 8, and the groove and the sealing platform 8, respectively. That is, the size of the folded edge 6 and the inner diameter of the groove 7 are obtained respectively. Then, the socket pipe is judged to be qualified in combination with the size standard.

[0053] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for measuring the inner diameter of a pipe socket, characterized in that, include: Two parallel support plates, each support plate having a fixed end and a free end; the fixed ends of the two support plates are respectively fixedly connected to a horizontal plate, the free ends of the two support plates are equidistant from the horizontal plate, and the horizontal plate is set perpendicular to the support plates. The folding detection plate and the groove detection plate are both set parallel to the support plate. The distance between the free end of the folding detection plate and the horizontal plate is less than the distance between the groove detection plate and the horizontal plate. Both the folding detection plate and the groove detection plate are provided with through holes, and a horizontal plate passes through the through holes to connect with the folding detection plate and the groove detection plate.

2. The pipe socket inner diameter measuring device as described in claim 1, characterized in that, The free end of the support plate has a conical structure.

3. The pipe socket inner diameter measuring device as described in claim 2, characterized in that, Both the folded edge detection plate and the groove detection plate have tapered free ends.

4. The pipe socket inner diameter measuring device as described in claim 3, characterized in that, The tip of the conical structure is set to a flat surface.

5. The pipe socket inner diameter measuring device as described in claim 1, characterized in that, The folded edge detection plate is fixedly connected to the horizontal plate, and the groove detection plate is fixedly connected to the horizontal plate.

6. The pipe socket inner diameter measuring device as described in claim 1, characterized in that, The folded edge detection plate is vertically slidably connected to the horizontal plate, and the groove detection plate is vertically slidably connected to the horizontal plate.

7. The pipe socket inner diameter measuring device as described in claim 6, characterized in that, The folded edge detection plate and the groove detection plate are equipped with scales.

8. The pipe socket inner diameter measuring device as described in claim 1, characterized in that, The folding detection plate is also horizontally slidably connected to the horizontal plate, and the groove detection plate is also horizontally slidably connected to the horizontal plate.

9. The pipe socket inner diameter measuring device as described in claim 1, characterized in that, A level detection device is also installed on the horizontal plate.

10. The pipe socket inner diameter measuring device as described in claim 9, characterized in that, The level detection device is a bubble level.

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