A C-shaped spring tube detection tool

Abstract

The application relates to the technical field of pressure meters, and discloses a C-shaped spring tube detection tool, which comprises a base, an angle plate is arranged on the base, angle lines are marked on the angle plate, a fixing plate is arranged on the base, the fixing plate is located on the 0 line of the angle plate, and the fixing plate is in abutment with the end surface of the C-shaped spring tube. An operator sets the C-shaped spring tube on the base, the end surface of the C-shaped spring tube is in abutment with the fixing plate, one end of the C-shaped spring tube is located on the 0 line of the angle plate, and the operator only needs to observe the angle line value at the other end of the C-shaped spring tube to obtain the bending angle of the C-shaped spring tube. Compared with comparison after drawing printing, the working steps of the operator are saved, the parameter of the bending angle of the C-shaped spring tube can be obtained, the misjudgment caused by human factors is reduced, and the measurement process of the operator is facilitated.

Description

Technical Field

[0001] This application relates to the technical field of pressure instruments, and in particular to a C-type Bourdon tube testing fixture. Background Technology

[0002] C-type spring tubes are a common type of pressure-sensitive element. They are typically made of copper or steel that has undergone annealing and then processed into C-shaped hollow tubes using fully automated forming equipment. The geometric parameters of C-type spring tubes are closely related to their pressure performance. The inner diameter and bending angle are core mandatory inspection items that directly affect product performance and assembly compatibility.

[0003] Currently, the inner diameter of C-type Bourdon tubes can only be measured using vernier calipers. Vernier calipers can only measure a few points at the opening, which has certain limitations. The bending angle of C-type Bourdon tubes can only be compared by printing out the drawings at a 1:1 scale. The comparison results can only be used to determine whether the C-type Bourdon tubes are qualified, but cannot quantify the key parameters. This not only results in low testing efficiency, but also makes it easy for human factors to cause misjudgments. Utility Model Content

[0004] To facilitate the measurement of the bending angle of a C-type Bourdon tube, this application provides a C-type Bourdon tube testing fixture.

[0005] This application provides a C-type Bourdon tube testing fixture, which adopts the following technical solution:

[0006] A C-type spring tube testing fixture includes a base, an angle plate with angle lines marked on the base, a fixing plate located on the 0 position line of the angle plate, and the fixing plate abutting against the end face of the C-type spring tube.

[0007] By adopting the above technical solution, the operator places the C-shaped spring tube on the base, and the fixing plate abuts against the end face of the C-shaped spring tube, so that one end of the C-shaped spring tube is located on the 0 line of the angle dial. The operator only needs to observe the angle line value of the other end of the C-shaped spring tube to obtain the bending angle of the C-shaped spring tube. Compared with comparing after printing the drawing, it not only saves the operator's work steps, but also obtains the parameter of the bending angle of the C-shaped spring tube, reduces the occurrence of misjudgment caused by human factors, and provides convenience for the operator's measurement process.

[0008] Optionally, the cross-sectional area of ​​the base gradually increases along the direction in which the C-shaped spring tube is inserted into the base, and the outer surface of the base is marked with scale lines. The cross-sectional diameter of the base that abuts against the C-shaped spring tube is equal to the inner diameter of the C-shaped spring tube.

[0009] By adopting the above technical solution, the cross-sectional area of ​​the base gradually increases along the direction in which the C-shaped spring tube is inserted into the base. The operator places the C-shaped spring tube on the outer surface of the base. At this time, the cross-sectional diameter of the base and the C-shaped spring tube in contact is equal to the inner diameter of the C-shaped spring tube. The operator can intuitively obtain the inner diameter of the C-shaped spring tube through the scale lines, which is convenient for the operator to measure the inner diameter of the C-shaped spring tube. Compared with vernier calipers, it not only saves the operator's measurement steps, but also reduces the error in the measurement process, so as to achieve a more accurate inner diameter value.

[0010] Optionally, an angle baffle is rotatably connected to the base, the angle baffle abuts against the other end face of the C-shaped spring tube, and the angle formed by the fixed plate and the angle baffle is equal to the bending angle of the C-shaped spring tube.

[0011] By adopting the above technical solution, the angle baffle abuts against the other end face of the C-shaped spring tube, so that the angle formed by the fixed plate and the angle baffle is equal to the bending angle of the C-shaped spring tube. The operator does not need to visually align the end face of the C-shaped spring tube with the angle plate, and can intuitively obtain the measured value of the bending angle, thereby reducing the error of the measurement data and improving the accuracy of the measurement results.

[0012] Optionally, the angle baffle is provided with a slot for inserting an angle disc.

[0013] By adopting the above technical solution, a slot for inserting the angle plate is provided on the angle baffle, which allows the angle baffle to be rotatably connected to the angle plate through the slot. The angle baffle and the angle plate are more stable, reducing the possibility of the operator's reading being affected by the displacement of the angle baffle, thereby improving the accuracy of the measurement results.

[0014] Optionally, the angle baffle is provided with an inclined surface, and the inclined surface is inclined in the same direction as the outer surface of the base.

[0015] By adopting the above technical solution, the inclined square surface is inclined in the same direction as the outer surface of the base, so that the angle baffle can better fit with the outer surface of the base and better abut against the end face of the C-shaped spring tube.

[0016] Optionally, a rotating shaft is rotatably connected to the base, and the angle baffle is fixedly connected to the rotating shaft, the rotating shaft being used to drive the angle baffle to rotate.

[0017] By adopting the above technical solution, the angle baffle is fixedly connected to the rotating shaft, which enables the rotating shaft to drive the angle baffle to rotate, making it convenient for the operator to rotate the angle baffle and providing convenience for the operator to measure the C-type spring tube.

[0018] Optionally, the base has an adjustment hole for inserting a rotating shaft, the rotating shaft has an external thread, and the wall of the adjustment hole has a corresponding internal thread.

[0019] By adopting the above technical solution, the rotating shaft is provided with an external thread, and the adjusting hole is provided with a corresponding internal thread, so that the rotating shaft is threadedly connected to the adjusting hole. After the operator rotates the rotating shaft so that the angle baffle abuts against the C-shaped spring tube, the rotating shaft is fixed due to the restriction of the threaded connection, thereby reducing the possibility of the rotating shaft rotating randomly.

[0020] Optionally, the base is provided with a fixed platform, and the distance from the fixed platform to the angle plate is greater than the distance from the surface of the angle baffle near the ground to the angle plate.

[0021] By adopting the above technical solution, the distance from the fixed platform to the angle plate is greater than the distance from the surface of the angle baffle near the ground to the angle plate, so that the angle baffle will not come into contact with the ground, allowing the angle baffle to slide more smoothly on the angle plate, thereby reducing the possibility of the base shaking.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. The operator places the C-shaped spring tube onto the base, and the fixing plate abuts against the end face of the C-shaped spring tube, so that one end of the C-shaped spring tube is located on the 0 position line of the angle dial. The operator only needs to observe the angle line value of the other end of the C-shaped spring tube to obtain the bending angle of the C-shaped spring tube. Compared with comparing after printing the drawing, it not only saves the operator's work steps, but also obtains the parameter of the bending angle of the C-shaped spring tube, reduces the occurrence of misjudgment caused by human factors, and provides convenience for the operator's measurement process.

[0024] 2. The cross-sectional area of ​​the base gradually increases along the direction in which the C-shaped Bourdon tube is inserted into the base. The operator places the C-shaped Bourdon tube on the outer surface of the base. At this time, the cross-sectional diameter of the base and the C-shaped Bourdon tube in contact is equal to the inner diameter of the C-shaped Bourdon tube. The operator can intuitively obtain the inner diameter of the C-shaped Bourdon tube through the scale lines, which is convenient for the operator to measure the inner diameter of the C-shaped Bourdon tube. Compared with vernier calipers, it not only saves the operator's measurement steps, but also reduces the error in the measurement process, so as to achieve a more accurate inner diameter value. Attached Figure Description

[0025] Figure 1 This is a structural schematic diagram of an embodiment of this application.

[0026] Reference numerals in the attached diagram: 1. Base; 11. Fixing plate; 12. Adjustment hole; 2. Angle plate; 3. Rotating shaft; 31. Knob; 32. Connecting strip; 4. Angle baffle; 41. Slot; 42. Inclined surface; 5. Fixing platform. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1 This application will be described in further detail.

[0028] This embodiment discloses a C-type Bourdon tube testing fixture. (Refer to...) Figure 1 A C-type spring tube testing fixture includes a base 1, an angle plate 2 fixedly connected to the base 1, the angle plate 2 being sleeved on the outer surface of the base 1, and angle lines marked on the angle plate 2. A fixing plate 11 is integrally formed on the outer surface of the base 1, the fixing plate 11 being located on the 0 position line of the angle plate 2, the fixing plate 11 being perpendicular to the angle plate 2, and the fixing plate 11 abutting against the end face of the C-type spring tube.

[0029] Reference Figure 1 The base 1 is shaped like a frustum, and its cross-sectional area gradually increases along the direction in which the C-shaped spring tube fits into the base 1. The outer surface of the base 1 is marked with scale lines, which represent the diameter of the cross-section of the base 1 at that location. The diameter of the cross-section where the base 1 abuts against the C-shaped spring tube is equal to the inner diameter of the C-shaped spring tube; that is, the scale lines can indicate the inner diameter of the C-shaped spring tube.

[0030] Reference Figure 1 An adjustment hole 12 is provided on the surface of the base 1 away from the ground, and a rotating shaft 3 is rotatably connected inside the adjustment hole 12. The outer surface of the rotating shaft 3 has external threads, and the inner wall of the adjustment hole 12 has corresponding internal threads, thus achieving a threaded connection between the rotating shaft 3 and the adjustment hole 12. A knob 31 is fixedly connected to the end face of the rotating shaft 3 away from the base 1, allowing the operator to easily rotate the rotating shaft 3.

[0031] Reference Figure 1 A connecting strip 32 is fixedly connected to the outer surface of the rotating shaft 3. An angle baffle 4 is fixedly connected to the surface of the connecting strip 32 near the angle disk 2. A slot 41 for the angle disk 2 to be inserted is opened on the surface of the angle baffle 4 near the base 1. The angle baffle 4 is slidably connected to the angle disk 2 through the slot 41. An inclined surface 42 is opened on the surface of the angle baffle 4 near the base 1. The inclined surface 42 is inclined in the same direction as the outer surface of the base 1. The angle baffle 4 abuts against the outer surface of the base 1 through the inclined surface 42.

[0032] Reference Figure 1 Angle baffle 4 and angle disk 2 are set perpendicular to each other. Angle baffle 4 abuts against the other end face of C-shaped spring tube. The angle formed by fixed plate 11 and angle baffle 4 is equal to the bending angle of C-shaped spring tube.

[0033] Reference Figure 1A fixed platform 5 is fixedly connected to the bottom surface of the base 1. The distance from the fixed platform 5 to the angle plate 2 is greater than the distance from the surface of the angle baffle 4 near the ground to the angle plate 2. The fixed platform 5 can raise the position of the angle plate 2, allowing the angle baffle 4 to rotate better on the angle plate 2.

[0034] The implementation principle of a C-type spring tube testing fixture in this application embodiment is as follows: The operator puts the C-type spring tube onto the base 1, so that one end of the C-type spring tube abuts against the fixed plate 11, and then rotates the knob 31 to adjust the angle baffle 4, so that the angle baffle 4 abuts against the other end of the C-type spring tube. The operator obtains the inner diameter of the C-type spring tube through the scale line on the outer surface of the base 1, and obtains the bending angle of the C-type spring tube through the angle line where the angle baffle 4 is located.

[0035] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0036] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of this application should be included within the protection scope of this application.

Claims

1. A C-type Bourdon tube testing fixture, characterized in that: Includes a base (1), on which an angle plate (2) is provided, and angle lines are marked on the angle plate (2). A fixing plate (11) is provided on the base (1), and the fixing plate (11) is located on the 0 position line of the angle plate (2). The fixing plate (11) abuts against the end face of the C-shaped spring tube.

2. The C-type Bourdon tube testing fixture according to claim 1, characterized in that: The cross-sectional area of ​​the base (1) gradually increases along the direction in which the C-shaped spring tube is inserted into the base (1). The outer surface of the base (1) is marked with scale lines. The cross-sectional diameter of the base (1) that abuts against the C-shaped spring tube is equal to the inner diameter of the C-shaped spring tube.

3. The C-type Bourdon tube testing fixture according to claim 1, characterized in that: An angle baffle (4) is rotatably connected to the base (1). The angle baffle (4) abuts against the other end face of the C-shaped spring tube. The angle formed by the fixing plate (11) and the angle baffle (4) is equal to the bending angle of the C-shaped spring tube.

4. The C-type Bourdon tube testing fixture according to claim 3, characterized in that: The angle baffle (4) is provided with a slot (41) for inserting the angle disc (2).

5. The C-type Bourdon tube testing fixture according to claim 3, characterized in that: An inclined surface (42) is provided on the angle baffle (4), and the inclined surface (42) is inclined in the same direction as the outer surface of the base (1).

6. The C-type Bourdon tube testing fixture according to claim 3, characterized in that: A rotating shaft (3) is rotatably connected to the base (1), and the angle baffle (4) is fixedly connected to the rotating shaft (3). The rotating shaft (3) is used to drive the angle baffle (4) to rotate.

7. The C-type Bourdon tube testing fixture according to claim 5, characterized in that: The base (1) has an adjustment hole (12) for inserting the rotating shaft (3), the rotating shaft (3) has an external thread, and the adjustment hole (12) has a corresponding internal thread on its wall.

8. The C-type Bourdon tube testing fixture according to claim 1, characterized in that: The base (1) is provided with a fixed platform (5), and the distance from the fixed platform (5) to the angle plate (2) is greater than the distance from the surface of the angle baffle (4) near the ground to the angle plate (2).

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