Dimension detection device for oil well accessories

Abstract

The utility model belongs to the technical field of size detection, and particularly relates to a size detection device for oil well accessories. According to the utility model, through the arrangement of the fixed clamping measuring claws and the telescopic rod, the second measuring claw can carry out multi-point clamping on a dimension detection piece, so that the clamping stability of the dimension detection piece by the first measuring claw, the second measuring claw and the plurality of fixed clamping measuring claws can be improved; in this way, the problem that due to the fact that the detection face of the size detection piece is uneven or irregular in shape, clamping of the size detection piece through a two-point type clamping method inclines or is prone to shaking, and the accuracy of size detection of the size detection piece through the device is reduced can be solved; and through the arrangement of a limiting sliding groove, a limiting sliding block and a spiral spring, the left-right position of the fixed clamping measuring claw can be adjusted according to the formation of the surface of the size detection piece, so that the stable clamping assembly can be suitable for the size detection pieces with different shapes and specifications.

Description

Technical Field

[0001] This utility model relates to the field of dimensional inspection technology, specifically a dimensional inspection device for oil well accessories. Background Technology

[0002] Dimensional inspection devices for oil well fittings are equipment used to inspect the dimensions, shape, and tolerances of oil well fittings (such as valves, pipe fittings, joints, flanges, etc.). These fittings are essential components in the oil and gas extraction process, and ensuring their accurate dimensions meet design requirements is crucial for the normal operation and safety of oil well equipment.

[0003] Currently, commonly used dimensional inspection devices for oil well fittings typically employ a two-point clamping method to inspect the dimensions of oil well fittings. While this method offers high efficiency in dimensional inspection, it can lead to issues if the inspection surface of the oil well fitting is uneven or irregular in shape. In such cases, the clamping device may tilt or wobble during dimensional inspection, which reduces the accuracy of the inspection.

[0004] Therefore, we propose a dimensional inspection device for oil well fittings to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a dimensional inspection device for oil well accessories, which solves the problems mentioned in the background section.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0009] A dimensional inspection device for oil well accessories includes a main scale and a secondary scale. The secondary scale is slidably connected to the rear side of the main scale. A first measuring claw is fixedly provided on one side of the lower end face of the main scale, and a second measuring claw is fixedly provided on one side of the lower end face of the secondary scale. The positions of the first measuring claw and the second measuring claw correspond to each other, and a stabilizing clamping component is provided on the second measuring claw.

[0010] Furthermore, the stabilizing clamping assembly includes fixed clamping measuring claws disposed on both sides of the second measuring claw and two sets of mounting slots formed on the second measuring claw. The two sets of mounting slots correspond to the positions of the two fixed clamping measuring claws respectively. Each set of mounting slots consists of two slots, and a telescopic rod is fixedly disposed in each mounting slot. Two limiting sliding grooves are formed on the side wall of the fixed clamping measuring claw opposite to the second measuring claw.

[0011] Furthermore, the four limiting slide grooves correspond to the positions of the four telescopic rods, and the end of the telescopic rod away from the fixed clamping measuring claw is fixedly provided with a limiting slider, and the four limiting sliders are slidably connected in the four limiting slide grooves respectively.

[0012] Furthermore, each of the limiting grooves is fixedly equipped with a helical spring, and one end of each helical spring is fixedly connected to the limiting slider in the limiting groove.

[0013] Furthermore, a groove is provided on the side wall opposite to the fixed clamping measuring claw of the second measuring claw, and a limit groove is provided in the groove. A protrusion is fixedly provided on the side wall opposite to the second measuring claw of the fixed clamping measuring claw.

[0014] Furthermore, one end of the protrusion is inserted into the groove on the second measuring claw, and a rubber sleeve is fixedly provided on the protrusion, which is engaged in the limiting groove within the groove.

[0015] Furthermore, a vernier is fixedly installed on the vernier scale, and a fixed knob is fixedly installed on the upper end face of the vernier scale. A guide groove is opened on the side wall of the main scale opposite to the vernier scale. A guide plate is fixedly installed on the side wall of the vernier scale opposite to the main scale. The guide plate is slidably connected in the guide groove. A roller is fixedly installed at one end of the vernier scale. The roller rolls on the lower end face of the main scale and the vernier scale.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a size detection device for oil well accessories, which has the following beneficial effects:

[0018] This invention, through the arrangement of fixed clamping measuring claws and telescopic rods, enables the second measuring claw to clamp the dimensional inspection piece at multiple points. This improves the stability of the clamping of the dimensional inspection piece by the first measuring claw, the second measuring claw, and multiple fixed clamping measuring claws. This avoids the problem of tilting or wobbling caused by uneven or irregular shapes of the inspection surface of the dimensional inspection piece, which would reduce the accuracy of the device in measuring the dimensions of the dimensional inspection piece. The setting of limiting grooves, limiting sliders, and helical springs allows the fixed clamping measuring claws to adjust their left and right positions according to the surface of the dimensional inspection piece, making the stable clamping assembly suitable for dimensional inspection pieces of different shapes and specifications. Attached Figure Description

[0019] Figure 1 This is a first-person perspective schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a second-view schematic diagram of the overall structure of this utility model;

[0021] Figure 3 This is a perspective view of the main scale of this utility model;

[0022] Figure 4 This is a perspective view of the auxiliary ruler of this utility model;

[0023] Figure 5 This is a perspective view of the connection between the second measuring claw and the stable clamping assembly of this utility model;

[0024] Figure 6 This is a cross-sectional view of the fixed clamping measuring claw of this utility model;

[0025] Figure 7 This is a cross-sectional view of the second measuring claw of this utility model.

[0026] In the diagram: 1. Main scale; 2. First measuring jaw; 3. Vernier scale; 4. Second measuring jaw; 5. Secure clamping assembly; 51. Fixed clamping measuring jaw; 52. Telescopic rod; 53. Limiting groove; 54. Limiting slider; 55. Helical spring; 6. Groove; 7. Limiting slot; 8. Protrusion; 9. Rubber sleeve; 10. Vernier; 11. Fixed knob; 12. Guide groove; 13. Guide plate; 14. Roller. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example

[0029] like Figure 1-7 As shown in the figure, an embodiment of the present invention provides a size detection device for oil well accessories, including a main ruler 1 and a secondary ruler 3. The secondary ruler 3 is slidably connected to the rear side of the main ruler 1. A first measuring claw 2 is fixedly provided on one side of the lower end face of the main ruler 1, and a second measuring claw 4 is fixedly provided on one side of the lower end face of the secondary ruler 3. The positions of the first measuring claw 2 and the second measuring claw 4 correspond to each other, and a stabilizing clamping component 5 is provided on the second measuring claw 4.

[0030] like Figure 5 - Figure 7As shown, the stabilizing clamping assembly 5 includes fixed clamping measuring claws 51 disposed on both sides of the second measuring claw 4 and two sets of mounting slots formed on the second measuring claw 4. The two sets of mounting slots correspond to the positions of the two fixed clamping measuring claws 51, and each set contains two mounting slots. A telescopic rod 52 is fixedly disposed within each mounting slot. Two limiting slide grooves 53 are formed on the side wall of each fixed clamping measuring claw 51 opposite to the second measuring claw 4. The four limiting slide grooves 53 correspond to the positions of the four telescopic rods 52. A limiting slider 54 is fixedly disposed at the end of each telescopic rod 52 away from the fixed clamping measuring claw 51. The four limiting sliders 54 are slidably connected within the four limiting slide grooves 53. A helical spring 55 is fixedly disposed within each limiting slide groove 53, and one end of each helical spring 55 is fixedly connected to the limiting slider 54 within the limiting slide groove 53.

[0031] The fixed clamping measuring claw 51 and the telescopic rod 52 enable the second measuring claw 4 to clamp the dimensional inspection piece at multiple points. This improves the stability of the clamping of the dimensional inspection piece by the first measuring claw 2, the second measuring claw 4, and the multiple fixed clamping measuring claws 51. This avoids tilting or wobbling of the two-point clamping method due to uneven or irregular shapes of the inspection surface of the dimensional inspection piece, which would reduce the accuracy of the device in measuring the dimensions of the dimensional inspection piece. The setting of the limiting slide groove 53, the limiting slider 54, and the helical spring 55 allows the fixed clamping measuring claw 51 to adjust its left and right position according to the formation of the surface of the dimensional inspection piece. This makes the stable clamping assembly 5 suitable for dimensional inspection pieces of different shapes and specifications.

[0032] like Figure 5 - Figure 7 As shown, a groove 6 is formed on the side wall opposite to the fixed clamping measuring claw 51 of the second measuring claw 4. A limiting groove 7 is formed in the groove 6. A protrusion 8 is fixedly provided on the side wall opposite to the second measuring claw 4 of the fixed clamping measuring claw 51. One end of the protrusion 8 is inserted into the groove 6 on the second measuring claw 4. A rubber sleeve 9 is fixedly provided on the protrusion 8. The rubber sleeve 9 on the protrusion 8 is engaged in the limiting groove 7 in the groove 6.

[0033] The groove 6, the limiting groove 7, the protrusion 8, and the rubber sleeve 9 facilitate the connection between the fixed clamping measuring claw 51 and the second measuring claw 4.

[0034] like Figure 1 , Figure 2 and Figure 4As shown, a vernier 10 is fixedly installed on the vernier scale 3, and a fixed knob 11 is fixedly installed on the upper end face of the vernier 10. A guide groove 12 is opened on the side wall of the main scale 1 opposite to the vernier scale 3. A guide plate 13 is fixedly installed on the side wall of the vernier scale 3 opposite to the main scale 1. The guide plate 13 is slidably connected in the guide groove 12. A roller 14 is fixedly installed at one end of the vernier scale 3. The roller 14 rolls on the lower end face of the main scale 1 and the vernier scale 3.

[0035] The vernier 10 facilitates the indication of measurement data, the guide groove 12 and the guide plate 13 restrict the position of the auxiliary scale 3, and the roller 14 makes the horizontal movement of the auxiliary scale 3 on the main scale 1 smoother.

[0036] The working principle of this practical application is as follows:

[0037] When dimensional inspection of a part is required, the part is placed between the first measuring jaw 2 and the second measuring jaw 4. Then, the fixed clamping measuring jaw 51 is pulled to both sides, and the auxiliary ruler 3 is pushed along the guide groove 12 towards the part until the first measuring jaw 2 and the second measuring jaw 4 clamp it. While the first measuring jaw 2 and the second measuring jaw 4 clamp the part, the fixed clamping measuring jaw 51 clamps it at different angles, thus allowing the part to be clamped at multiple points by the first measuring jaw 2, the second measuring jaw 4, and the fixed clamping measuring jaw 51. If the inspection surface of the part is irregular, the fixed clamping measuring jaw 51 will... Driven by the elastic potential energy of the coil spring 55, the fixed clamping measuring claw 51 is pressed tightly against the surface of the dimension inspection piece. When the fixed clamping measuring claw 51 clamps the protrusion on the surface of the dimension inspection piece, the fixed clamping measuring claw 51 is forced to move the limiting slider 54 within the limiting groove 53. The movement of the limiting slider 54 will compress the coil spring 55 within the limiting groove 53, thereby enabling the fixed clamping measuring claw 51 to be used for dimension inspection pieces of different shapes and specifications. After the dimension inspection piece is measured, the fixed clamping measuring claw 51 can return to its original position through the elastic potential energy of the coil spring 55, thereby ensuring the stability of the clamping and inspection of the dimension inspection piece by the main scale 1 and the auxiliary scale 3.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 dimensional inspection device for oil well fittings, comprising a main ruler (1) and a secondary ruler (3), characterized in that: The auxiliary ruler (3) is slidably connected to the rear side of the main ruler (1). A first measuring claw (2) is fixedly provided on one side of the lower end face of the main ruler (1), and a second measuring claw (4) is fixedly provided on one side of the lower end face of the auxiliary ruler (3). The positions of the first measuring claw (2) and the second measuring claw (4) correspond to each other. A stable clamping component (5) is provided on the second measuring claw (4). The stable clamping component (5) includes fixed clamping measuring claws (51) provided on both sides of the second measuring claw (4) and two sets of mounting grooves opened on the second measuring claw (4). The two sets of mounting grooves correspond to the positions of the two fixed clamping measuring claws (51) respectively. Each set of mounting grooves has two pieces. A telescopic rod (52) is fixedly provided in each mounting groove. Two limiting sliding grooves (53) are opened on the side wall of the fixed clamping measuring claw (51) opposite to the second measuring claw (4).

2. The dimensional inspection device for oil well fittings according to claim 1, characterized in that: The four limiting grooves (53) correspond to the positions of the four telescopic rods (52). The end of the telescopic rod (52) away from the fixed clamping measuring claw (51) is fixedly provided with a limiting slider (54). The four limiting sliders (54) are slidably connected in the four limiting grooves (53).

3. The dimension detection device for oil well accessories according to claim 2, characterized in that: Each of the limiting slide grooves (53) is fixedly equipped with a helical spring (55), and one end of each helical spring (55) is fixedly connected to the limiting slider (54) in the limiting slide groove (53).

4. The dimensional inspection device for oil well fittings according to claim 1, characterized in that: The second measuring claw (4) has a groove (6) on the side wall opposite to the fixed clamping measuring claw (51), and a limiting groove (7) is provided in the groove (6). A protrusion (8) is fixedly provided on the side wall opposite to the second measuring claw (4) of the fixed clamping measuring claw (51).

5. The dimension detection device for oil well accessories according to claim 4, characterized in that: One end of the protrusion (8) is inserted into the groove (6) on the second measuring claw (4), and a rubber sleeve (9) is fixedly provided on the protrusion (8). The rubber sleeve (9) on the protrusion (8) is stuck in the limiting groove (7) in the groove (6).

6. The dimensional inspection device for oil well fittings according to claim 1, characterized in that: A vernier (10) is fixedly installed on the vernier (10), and a fixed knob (11) is fixedly installed on the upper end face of the vernier (10). A guide groove (12) is opened on the side wall of the main scale (1) opposite to the vernier (3). A guide plate (13) is fixedly installed on the side wall of the vernier (3) opposite to the main scale (1). The guide plate (13) is slidably connected in the guide groove (12). A roller (14) is fixedly installed at one end of the vernier (3). The roller (14) rolls on the lower end face of the main scale (1) and the vernier (3).

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