Device for measuring inner diameter of steel pipe based on spiral type

Abstract

The utility model discloses a spiral-based device for measuring the inner diameter of a steel pipe, which comprises a measuring disc and a driving disc which are coaxially arranged, and the measuring disc is rotatably connected with the driving disc; a plurality of sliding rulers which are radially distributed by taking the circle center of the measuring disc as the center are arranged on the measuring disc along the circumferential direction, and the sliding rulers are in sliding connection with the measuring disc; and the sliding ruler can move along the radial direction to extend out of the edge of the measuring disc under the rotation action of the driving disc. According to the device for measuring the inner diameter of the steel pipe, the plurality of sliding rulers can extend out by driving the driving disc to rotate, so that when the end parts of all the sliding rulers are in contact with the inner wall of the steel pipe at the same time, the inner diameter of the steel pipe at each time can be visually observed; meanwhile, if the inner wall of the steel pipe is uneven, the position of the measuring disc can be rotated to enable the sliding ruler not to be in contact with the sunken part, so that a worker can accurately observe and record data.

Description

Technical Field

[0001] This utility model relates to the field of construction surveying technology, and more specifically, to a device for measuring the inner diameter of steel pipes based on a spiral method. Background Technology

[0002] Steel pipe measurement is the process of accurately measuring key dimensions such as inner diameter, outer diameter, wall thickness, and length of steel pipes using high-precision tools and techniques. It plays a crucial role in several aspects. First, steel pipe measurement is a key link in quality control, ensuring that steel pipe products meet design specifications and industry standards, thereby improving product reliability and safety. Second, through accurate measurement, dimensional deviations in the production process can be detected in a timely manner, guiding production adjustments and reducing scrap rates and production costs.

[0003] The main function of the device for measuring the inner diameter of steel pipes is to measure the inner diameter of the steel pipes. First, by using a spiral measuring method, the measuring rod or similar structure can measure along the inner diameter of the steel pipe, avoiding the errors that may occur with traditional measuring methods.

[0004] Existing steel pipe inner diameter measuring devices have complex inter-component coordination, lack practicality and flexibility, and have a limited measurement range. Furthermore, they are not easy to perform multiple simultaneous measurements, requiring the steel pipe inner diameter data to be recorded multiple times.

[0005] In view of the above, this application is hereby submitted. Utility Model Content

[0006] The technical problem this invention aims to solve is the shortcomings of having a small measurement range, a complex operation process, and the inability to perform multiple measurements simultaneously. The purpose is to provide a device based on a spiral mechanism for measuring the inner diameter of steel pipes. By using a rotating shaft to drive a drive disc, multiple sliding rulers can be extended and simultaneously contact the inner wall of the steel pipe. This allows for direct observation of the inner diameter of the steel pipe each time. When the inner wall of the steel pipe is uneven, the sliding rulers do not contact the recessed areas, facilitating observation and recording by the staff.

[0007] This utility model is achieved through the following technical solution:

[0008] A device for measuring the inner diameter of steel pipes based on a spiral mechanism includes a measuring disk and a driving disk arranged coaxially, wherein the measuring disk and the driving disk are rotatably connected.

[0009] The measuring disk has multiple sliding rulers arranged radially around the center of the measuring disk along the circumferential direction, and the sliding rulers are slidably connected to the measuring disk.

[0010] The sliding ruler can move radially beyond the edge of the measuring disk under the rotation of the drive disk.

[0011] This utility model relates to a steel pipe inner diameter measuring device. By driving the drive disc to rotate, multiple sliding rulers can be extended. When all the ends of the sliding rulers simultaneously contact the inner wall of the steel pipe, the inner diameter of the steel pipe can be observed directly each time. At the same time, if the inner wall of the steel pipe is uneven, the position of the measuring disc can be rotated so that the sliding rulers do not contact the concave areas, so that the staff can accurately observe and record the data.

[0012] In one specific embodiment, a rotating column is coaxially mounted between the measuring disk and the driving disk. The rotating column is fixedly connected to the center of the driving disk, and the rotating column is rotatably connected to the center of the measuring disk.

[0013] In one specific embodiment, a plurality of support frames are provided on the side of the measuring disk away from the driving disk, and the plurality of support frames are arranged in a circular pattern and connected by a rotating ring.

[0014] In one specific embodiment, a rotating shaft groove is provided at the center of the measuring disk, a bearing is provided on the inner side of the rotating shaft groove, the end of the rotating column passes through the rotating shaft groove and extends into the rotating ring and is rotatably connected to the rotating ring, and a rotating handle is fixedly connected to the end of the rotating column away from the driving disk.

[0015] In one specific embodiment, a rotating groove is provided at the center of the drive disk, the rotating groove passes through the drive disk, and the rotating groove is fixedly connected to the rotating column.

[0016] This utility model can achieve the fixation of the measuring disc and the rotation of the drive disc by setting a rotating column and a support frame. Specifically, the operator holds the support frame and coaxially inserts the measuring disc and the drive disc into the inside of the steel pipe. When in use, it is not necessary to position the entire device in the center of the steel pipe. Then, the operator holds the support frame with one hand and turns the handle with the other hand. The rotation of the handle drives the rotating column fixed to it to rotate, and then the rotating column drives the drive disc to rotate, thereby causing the sliding ruler to extend outward.

[0017] In one specific embodiment, a sliding column is fixedly provided on the side of the sliding ruler near the drive disk, and multiple radially distributed grooves are formed on the side of the drive disk near the sliding ruler, with the center of the drive disk as the center along the circumferential direction; the groove is an arc-shaped groove with one end near the center of the drive disk and the other end extending to the edge of the drive disk.

[0018] The sliding column is slidably installed in the groove, and when the drive disk rotates relative to the measuring disk, the sliding column can slide back and forth along the trajectory of the groove.

[0019] In one specific embodiment, the measuring disk has multiple measuring grooves arranged along the circumferential direction, the measuring grooves penetrating the two sides and edge surfaces of the measuring disk, and the sliding ruler is disposed in the measuring groove and slidably connected to the inner wall of the measuring groove.

[0020] This invention converts the rotational motion of the drive disc into the linear motion of the sliding ruler by setting sliding columns and groove structures. Specifically, during the rotation of the drive disc, multiple arc-shaped grooves are driven to rotate synchronously. The guiding effect of these grooves allows multiple sliding columns to move along the path of the grooves. Since the sliding columns are fixedly connected to the sliding ruler, and the sliding ruler is slidably positioned in the measuring groove, the measuring groove provides a limit to the movement of the sliding ruler. Therefore, the movement of the sliding columns causes the sliding ruler to extend linearly out of the measuring disc. When all the sliding rulers contact the inner wall of the steel pipe, the rotating column is at the center of the steel pipe.

[0021] In one specific embodiment, an observation transparent plate is fixedly connected to the surface of the measuring groove.

[0022] In one specific embodiment, a data board is fixedly connected to the observation transparent plate.

[0023] In one specific embodiment, a measuring head is fixedly connected to one end of the sliding ruler that extends to the outside of the measuring disc.

[0024] In this invention, the sliding ruler is fixedly connected to the measuring head. The movement of the sliding ruler drives the movement of the measuring head, causing the measuring head to contact the inner wall of the steel pipe. At this time, the measurement can be observed through the transparent plate, and the data can be read directly using the set data plate. The data of the inner wall of the steel pipe at this location can be obtained directly. Then, by rotating or moving the measuring disk, the multiple sliding rulers set can slide on the inner wall of the steel pipe. The inner diameter of the steel pipe at other locations can be measured using the above method.

[0025] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0026] 1. The present invention provides a device for measuring the inner diameter of a steel pipe based on a spiral mechanism. By rotating a rotating column, the drive disc is rotated, which can extend multiple sliding rulers. When the ends of all the sliding rulers simultaneously contact the inner wall of the steel pipe, the inner diameter of the steel pipe can be observed intuitively each time.

[0027] 2. The present invention provides a device for measuring the inner diameter of a steel pipe based on a spiral. If the inner wall of the steel pipe is uneven, the position of the measuring disc can be rotated so that the sliding ruler does not contact the depression, so that the staff can accurately observe and record the data.

[0028] 3. The present invention provides a device for measuring the inner diameter of steel pipes based on a spiral mechanism. The device has a simple structure and is easy to use. By rotating the support frame, the measuring head can be rotated on the inner wall of the steel pipe, which makes it convenient for workers to record the inner diameter of any point inside the steel pipe, thereby improving measurement efficiency and work quality. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the exemplary embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 A top view of the overall structure of the device for measuring the inner diameter of a steel pipe provided in an embodiment of this utility model;

[0031] Figure 2 A bottom schematic diagram of the overall structure of the device for measuring the inner diameter of a steel pipe provided in an embodiment of this utility model;

[0032] Figure 3 This is a schematic diagram of the overall structure of the sliding ruler provided in an embodiment of the present utility model;

[0033] Figure 4 A schematic diagram of the specific structure of the sliding ruler provided in this embodiment of the utility model.

[0034] The attached diagram shows the markings and corresponding component names:

[0035] 1-Measuring disc, 2-Rotating handle, 3-Support frame, 4-Rotating ring, 5-Rotating column, 6-Drive disc, 7-Groove, 8-Sliding column, 9-Measuring groove, 10-Bearing, 11-Observation transparent plate, 12-Sliding ruler, 13-Measuring head, 14-Rotating groove, 15-Data plate, 16-Rotating shaft groove. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0037] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to those skilled in the art that these specific details are not necessary to implement the present invention. In other embodiments, well-known structures are not specifically described in order to avoid obscuring the present invention.

[0038] Throughout this specification, references to "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "an embodiment," "an example," "an example," or "an example" appearing in various places throughout the specification do not necessarily refer to the same embodiment or example. Furthermore, specific features, structures, or characteristics can be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. Moreover, those skilled in the art will understand that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0039] In the description of this utility model, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0040] Example

[0041] like Figures 1-4 As shown in the figure, the present invention provides a device for measuring the inner diameter of a steel pipe based on a spiral mechanism, comprising a measuring disk 1 and a driving disk 6 arranged coaxially, wherein the measuring disk 1 and the driving disk 6 are rotatably connected.

[0042] The measuring disk 1 is provided with a plurality of sliding rulers 12 arranged radially around the center of the measuring disk 1 along the circumferential direction, and the sliding rulers 12 are slidably connected to the measuring disk 1.

[0043] The sliding ruler 12 can move radially beyond the edge of the measuring disk 1 under the rotation of the driving disk 6.

[0044] This utility model relates to a steel pipe inner diameter measuring device. By driving the drive disc to rotate, multiple sliding rulers can be extended. When all the ends of the sliding rulers simultaneously contact the inner wall of the steel pipe, the inner diameter of the steel pipe can be observed directly each time. At the same time, if the inner wall of the steel pipe is uneven, the position of the measuring disc can be rotated so that the sliding rulers do not contact the concave areas, so that the staff can accurately observe and record the data.

[0045] In one specific embodiment, a rotating column 5 is coaxially mounted between the measuring disk 1 and the driving disk 6. The rotating column 5 is fixedly connected to the center of the driving disk 6, and the rotating column 5 is rotatably connected to the center of the measuring disk 1.

[0046] In one specific embodiment, a plurality of support frames 3 are provided on the side of the measuring disk 1 away from the driving disk 6. The plurality of support frames 3 are arranged in a circular pattern and connected by a rotating ring 4.

[0047] In one specific embodiment, a rotating shaft groove 16 is provided at the center of the measuring disk 1, and a bearing 10 is provided on the inner side of the rotating shaft groove 16. The end of the rotating column 5 passes through the rotating shaft groove 16 and extends into the rotating ring 4 and is rotatably connected to the rotating ring 4. A rotating handle 2 is fixedly connected to the end of the rotating column 5 away from the drive disk.

[0048] In one specific embodiment, a rotating groove 14 is provided at the center of the drive disk 6, the rotating groove 14 passes through the drive disk 6, and the rotating groove 14 is fixedly connected to the rotating column 5.

[0049] This utility model can achieve the fixation of the measuring disc and the rotation of the drive disc by setting a rotating column and a support frame. Specifically, the operator holds the support frame and coaxially inserts the measuring disc and the drive disc into the inside of the steel pipe. When in use, it is not necessary to position the entire device in the center of the steel pipe. Then, the operator holds the support frame with one hand and turns the handle with the other hand. The rotation of the handle drives the rotating column fixed to it to rotate, and then the rotating column drives the drive disc to rotate, thereby causing the sliding ruler to extend outward.

[0050] In a specific embodiment, a sliding column 8 is fixedly provided on the side of the sliding ruler 12 near the drive disk 6, and a plurality of radially distributed grooves 7 are provided on the side of the drive disk 6 near the sliding ruler 12 with the center of the drive disk 6 as the center along the circumferential direction; the groove 7 is an arc-shaped groove with one end close to the center of the drive disk 6 and the other end extending to the edge of the drive disk 6.

[0051] The sliding column 8 is slidably installed in the groove 7. When the drive disk 6 rotates relative to the measuring disk 1, the sliding column 8 can slide back and forth along the trajectory of the groove 7.

[0052] In one specific embodiment, the measuring disk 1 is provided with a plurality of measuring grooves 9 along the circumferential direction. The measuring grooves 9 penetrate through the two sides and edge surfaces of the measuring disk 1. The sliding ruler 12 is disposed in the measuring grooves 9 and is slidably connected to the inner wall of the measuring grooves 9.

[0053] This invention converts the rotational motion of the drive disc into the linear motion of the sliding ruler by setting sliding columns and groove structures. Specifically, during the rotation of the drive disc, multiple arc-shaped grooves are driven to rotate synchronously. The guiding effect of these grooves allows multiple sliding columns to move along the path of the grooves. Since the sliding columns are fixedly connected to the sliding ruler, and the sliding ruler is slidably positioned in the measuring groove, the measuring groove provides a limit to the movement of the sliding ruler. Therefore, the movement of the sliding columns causes the sliding ruler to extend linearly out of the measuring disc. When all the sliding rulers contact the inner wall of the steel pipe, the rotating column is at the center of the steel pipe.

[0054] In one specific embodiment, an observation transparent plate 11 is fixedly connected to the surface of the measuring groove 9.

[0055] In one specific embodiment, a data board 15 is fixedly connected to the observation transparent plate 11.

[0056] In one specific embodiment, a measuring head 13 is fixedly connected to one end of the sliding ruler 12 that extends to the outside of the measuring disk 1.

[0057] In this invention, the sliding ruler is fixedly connected to the measuring head. The movement of the sliding ruler drives the movement of the measuring head, causing the measuring head to contact the inner wall of the steel pipe. At this time, the measurement can be observed through the transparent plate, and the data can be read directly using the set data plate. The data of the inner wall of the steel pipe at this location can be obtained directly. Then, by rotating or moving the measuring disk, the multiple sliding rulers set can slide on the inner wall of the steel pipe. The inner diameter of the steel pipe at other locations can be measured using the above method.

[0058] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A device for measuring the inner diameter of a steel pipe based on a spiral mechanism, characterized in that, It includes a measuring disk (1) and a driving disk (6) arranged coaxially, and the measuring disk (1) and the driving disk (6) are rotatably connected; The measuring disk (1) is provided with a plurality of sliding rulers (12) arranged radially around the center of the measuring disk (1) along the circumferential direction, and the sliding rulers (12) are slidably connected to the measuring disk (1). The sliding ruler (12) can move radially beyond the edge of the measuring disk (1) under the rotation of the drive disk (6).

2. The device for measuring the inner diameter of a steel pipe based on a spiral mechanism according to claim 1, characterized in that, A rotating column (5) is coaxially mounted between the measuring disk (1) and the driving disk (6). The rotating column (5) is fixedly connected to the center of the driving disk (6), and the rotating column (5) is rotatably connected to the center of the measuring disk (1).

3. The device for measuring the inner diameter of a steel pipe based on a spiral mechanism according to claim 2, characterized in that, Multiple support frames (3) are provided on the side of the measuring disk (1) away from the drive disk (6). The multiple support frames (3) are arranged in a circular pattern and connected by a rotating ring (4).

4. The device for measuring the inner diameter of a steel pipe based on a spiral mechanism according to claim 3, characterized in that, A rotating shaft groove (16) is provided at the center of the measuring disk (1). A bearing (10) is provided on the inner side of the rotating shaft groove (16). The end of the rotating column (5) passes through the rotating shaft groove (16) and extends into the rotating ring (4) and is rotatably connected to the rotating ring (4). A rotating handle (2) is fixedly connected to the end of the rotating column (5) away from the drive disk.

5. The device for measuring the inner diameter of a steel pipe based on a spiral mechanism according to claim 1, characterized in that, The drive disk (6) has a rotating groove (14) at its center, the rotating groove (14) passes through the drive disk (6), and the rotating groove (14) is fixedly connected to the rotating column (5).

6. The device for measuring the inner diameter of a steel pipe based on a spiral mechanism according to claim 1, characterized in that, A sliding column (8) is fixedly provided on the side of the sliding ruler (12) near the drive disk (6). Multiple radially distributed grooves (7) are provided on the side of the drive disk (6) near the sliding ruler (12) with the center of the drive disk (6) as the center. The groove (7) is an arc-shaped groove with one end close to the center of the drive disk (6) and the other end extending to the edge of the drive disk (6). The sliding column (8) is slidably installed in the groove (7). When the drive disk (6) rotates relative to the measuring disk (1), the sliding column (8) can slide back and forth along the trajectory of the groove (7).

7. The device for measuring the inner diameter of a steel pipe based on a spiral mechanism according to claim 6, characterized in that, The measuring disk (1) has multiple measuring grooves (9) arranged along the circumferential direction. The measuring grooves (9) penetrate the two sides and edge surfaces of the measuring disk (1). The sliding ruler (12) is arranged in the measuring groove (9) and is slidably connected to the inner wall of the measuring groove (9).

8. The device for measuring the inner diameter of a steel pipe based on a spiral mechanism according to claim 7, characterized in that, An observation transparent plate (11) is fixedly connected to the surface of the measuring groove (9).

9. The device for measuring the inner diameter of a steel pipe based on a spiral mechanism according to claim 8, characterized in that, A data board (15) is fixedly connected to the observation transparent plate (11).

10. The device for measuring the inner diameter of a steel pipe based on a spiral mechanism according to claim 1, characterized in that, The sliding ruler (12) extends to one end outside the measuring disk (1) and is fixedly connected to a measuring head (13).

Images