Flange face inspection tool for different-face three-way pipe fitting

Abstract

The utility model relates to the technical field of pipe fitting inspection, and provides a special-surface three-way pipe fitting flange surface inspection tool, which comprises a bottom plate, a first inspection hole, a second inspection hole, a third inspection hole and a third flange surface, and is characterized in that the bottom plate is provided with a first inspection hole for inspecting a first flange surface of a special-surface three-way pipe fitting; the rear side plate is connected to the rear side of the top surface of the bottom plate, and a first through hole is formed in the rear side plate; the rear clamping cylinder is connected to the first through hole in a sliding mode, and a second inspection hole is formed in the rear clamping cylinder and used for inspecting a second flange face of the different-face three-way pipe fitting; the right side plate is connected to the right side of the top surface of the bottom plate and is provided with a second through hole; and the right clamping cylinder is connected to the second through hole in a sliding mode, and a third inspection hole is formed in the right clamping cylinder and used for inspecting a third flange face of the different-face three-way pipe fitting. Compared with a three-coordinate measurement method, the deformation condition of each flange surface of the different-surface three-way pipe fitting can be quickly and directly inspected in a fixed and double-moving manner through the arranged bottom plate, the arranged rear clamping cylinder and the arranged right clamping cylinder, the structure is simple, operation is convenient, related inspection can be completed by one person, and the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe fitting inspection, in particular to a tool for inspecting flange surfaces of unequal-surface tee pipe fittings. Background Art

[0002] Traditional tee pipe fittings are generally flat tee pipe fittings, that is, the central axes of its three connecting ends are in the same plane; while those with the central axes of the three connecting ends not in the same plane are skew tee pipe fittings, and their three flange surfaces are in skew states.

[0003] The tee fitting connecting the APU bleed air line to the bleed air valve is an example of this type of skewed tee. This thin-walled structure can easily deform during use, causing the flange faces to shift from their original design positions and rendering the fitting unusable for installation. Because the three flange faces are skewed, maintenance requires three-dimensional coordinate measurement (CMM) to determine the angle between their central axes to determine if any flange faces are offset. However, the complex clamping structure of this CMM method makes the measurement process cumbersome and inefficient. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the utility model provides a tool for inspecting the flange surface of a three-way pipe fitting with different surfaces, so as to solve the problems in the existing technology of the three-coordinate measurement method that the clamping structure is too complicated, the measurement process is very cumbersome, and the work efficiency is too low.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A tool for inspecting flange surfaces of tee pipe fittings with different faces, comprising:

[0007] A bottom plate is provided with a first inspection hole for inspecting the first flange surface of the eccentric tee pipe fitting;

[0008] a rear side plate connected to the rear side of the top surface of the bottom plate and having a first through hole formed therein;

[0009] A rear cartridge is slidably connected to the first through hole and is provided with a second inspection hole for inspecting the second flange surface of the eccentric tee pipe fitting;

[0010] a right side plate connected to the right side of the top surface of the bottom plate and having a second through hole formed thereon; and

[0011] The right cartridge is slidably connected to the second through hole and is provided with a third inspection hole for inspecting the third flange surface of the eccentric tee pipe fitting.

[0012] In one embodiment disclosed in the present application, an annular step is respectively provided on one end of the first inspection hole, the second inspection hole and the third inspection hole facing the eccentric tee pipe fitting;

[0013] The inner diameter of the annular step matches the outer diameters of the first to third flanges of the corresponding eccentric tee pipe fittings, and is used to abut against the first flange surface, the second flange surface and the third flange surface of the eccentric tee pipe fitting to verify whether the outer circle of the flange surface is deformed.

[0014] In one embodiment disclosed in the present application, the rear cartridge and the right cartridge have the same structure except for the different inner and outer diameters. A recessed groove is provided on the outer side wall of each cartridge, and the recessed groove extends along the axial direction of the rear cartridge and the right cartridge.

[0015] The rear side plate and the right side plate are respectively threadedly connected with a first screw, and the front end of the first screw radially extends into the first through hole and the second through hole and can be inserted into the sink groove to lock the rear cartridge and the right cartridge to prevent them from falling off.

[0016] In one embodiment disclosed in the present application, the rear side panel is connected to the rear side of the top surface of the bottom panel via a rear connecting block;

[0017] The right side plate is connected to the right side of the top surface of the bottom plate through a right connecting block.

[0018] In one embodiment disclosed in the present application, the cross section of the rear connecting block is an L-shaped structure with an obtuse angle, one side of which is connected to the rear side of the top surface of the bottom plate by a plurality of second screws, and the other side is connected to the rear side plate by a plurality of second screws;

[0019] The cross section of the right connecting block is a right-angled L-shaped structure, one side of which is connected to the right side of the top surface of the bottom plate through multiple second screws, and the other side is connected to the right side plate through multiple second screws.

[0020] In one embodiment disclosed in the present application, positioning pins are connected to both sides of the rear connecting block and the right connecting block;

[0021] The tips of the positioning pins are respectively inserted into the pin holes provided on the bottom plate, the rear side plate and the right side plate.

[0022] In one embodiment disclosed in the present application, a plurality of positioning pins are provided and are cross-arranged between the second screws.

[0023] In one embodiment disclosed in the present application, a pair of the positioning pins and three of the second screws are connected to each side of the rear connecting block and the right connecting block.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] 1. Compared with the three-coordinate measurement method, the bottom plate, rear cartridge and right cartridge can quickly and directly check the deformation of each flange surface of the non-uniform tee pipe fitting in a certain two-way motion. In addition, the structure is simple and the operation is convenient. One person can complete the relevant inspection, which greatly improves work efficiency.

[0026] 2. By providing an annular step at one end of the first inspection hole, the second inspection hole and the third inspection hole facing the eccentric tee pipe fitting, it is possible to verify whether the outer circle of each flange surface of the eccentric tee pipe fitting is deformed, which can effectively ensure the reliability of the flange surface deformation inspection operation.

[0027] 3. The positioning pins can accurately locate the relative positions of the rear side plate, right side plate and bottom plate, thereby ensuring that the axes of the rear cartridge and right cartridge coincide or align with the axes of the second flange and third flange of the eccentric tee pipe fitting, thereby improving the accuracy of the deformation inspection of each flange surface of the eccentric tee pipe fitting. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0030] Figure 2 This is a schematic diagram of the right side structure of the present utility model;

[0031] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of the middle part A;

[0032] Figure 4 This is a schematic diagram of the top view of the structure of the utility model after the non-uniform tee pipe fitting is removed;

[0033] Figure 5 Schematic diagram of the top view of the rear cartridge / right cartridge;

[0034] Figure 6 This is a schematic diagram of the main cross-sectional structure of the rear cartridge / right cartridge. DETAILED DESCRIPTION

[0035] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0038] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; they can refer to direct connection or indirect connection through an intermediate medium; they can refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0039] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0040] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present invention.

[0041] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0042] See also Figures 1 to 6 As shown, the utility model provides a tool for inspecting the flange surface of a tee pipe fitting with different faces, comprising:

[0043] The bottom plate 10 is provided with a first inspection hole 11 for inspecting the first flange surface of the eccentric tee pipe fitting 60;

[0044] The rear side plate 20 is connected to the rear side of the top surface of the bottom plate 10 and has a first through hole formed thereon;

[0045] The rear cartridge 30 is slidably connected to the first through hole and is provided with a second inspection hole 31 for inspecting the second flange surface of the eccentric tee pipe fitting 60;

[0046] The right side plate 40 is connected to the right side of the top surface of the bottom plate 10 and has a second through hole; and

[0047] The right cartridge 50 is slidably connected to the second through hole and is provided with a third inspection hole 51 for inspecting the third flange surface of the eccentric tee pipe fitting 60 .

[0048] During use, with the base plate 10 as a reference, insert the first flange below the eccentric tee fitting 60 into the first inspection hole 11. Then, rotate the eccentric tee fitting 60 so that its rear second flange and right third flange face and align with the rear side plate 20 and right side plate 40, respectively. Then, push the rear cartridge 30 and right cartridge 50 axially along the first and second through holes so that their second and third inspection holes 31 and 51 approach the second and third flanges, respectively. If the second and third inspection holes 31 and 51 can be completely inserted into the second and third flanges and the second and third flanges are completely in contact with the inner walls of the second and third inspection holes 31 and 51, it indicates that the flange surfaces of the eccentric tee fitting 60 are not offset. That is to say, compared with the three-coordinate measurement method, the provided base plate 10, rear cartridge 30 and right cartridge 50 can quickly and directly check the deformation of each flange surface of the non-planar tee pipe fitting 60 in a certain two-motion manner. Moreover, the structure is simple and the operation is convenient. One person alone can complete the relevant inspection, which greatly improves work efficiency.

[0049] See also Figure 3 and Figure 6As shown, an annular step 12 is provided on the ends of the first, second, and third inspection holes 11, 31, and 51 facing the tee 60. The inner diameter of the annular step 12 matches the outer diameter of the first, second, and third flanges of the corresponding tee 60. This step 12 is used to contact the first, second, and third flange surfaces of the tee 60 to verify whether the outer diameters of these flanges are deformed. When the first flange is inserted into the first inspection hole 11, the second inspection hole 31 is inserted into the second flange, and the third inspection hole 51 is inserted into the third flange, if the first, second, and third flange surfaces properly contact the corresponding annular step 12, it indicates that the outer diameters of the flanges of the tee 60 are not deformed. In other words, the annular steps 12 provided on the ends of the first, second, and third inspection holes 11, 31, and 51 facing the tee 60 can verify whether the outer diameters of the flanges of the tee 60 are deformed, effectively ensuring the reliability of the flange deformation inspection operation.

[0050] See also Figure 5 and Figure 6 As shown, the rear cartridge 30 and the right cartridge 50 have identical structures, except for their different inner and outer diameters. A recessed groove 31 is defined on their outer walls, extending axially along the rear cartridge 30 and the right cartridge 50. First screws 21 are threadedly connected to the rear side plate 20 and the right side plate 40, respectively. The front ends of the first screws 21 radially extend through the first and second through holes, then fit within the recessed grooves 31, securing the rear cartridge 30 and the right cartridge 50 to prevent them from falling out. Loosening the first screws 21 allows the rear cartridge 30 and the right cartridge 50 to be moved along the length of the recessed grooves 31.

[0051] See also Figure 1 、 Figure 2 and Figure 4 As shown, the rear side panel 20 is connected to the rear side of the top surface of the bottom panel 10 via the rear connecting block 13; the right side panel 40 is connected to the right side of the top surface of the bottom panel 10 via the right connecting block 14. Specifically, the rear connecting block 13 has an obtuse-angled L-shaped cross-section, one side of which is connected to the rear side of the top surface of the bottom panel 10 via multiple second screws 22, and the other side is connected to the rear side panel 20 via multiple second screws 22; the right connecting block 14 has a right-angled L-shaped cross-section, one side of which is connected to the right side of the top surface of the bottom panel 10 via multiple second screws 22, and the other side is connected to the right side panel 40 via multiple second screws 22.

[0052] To ensure that the axes of the rear cartridge 30 and the right cartridge 50 coincide or align with the axes of the second and third flanges of the eccentric tee pipe fitting 60 after the rear side plate 20 and the right side plate 40 are connected to the base plate 10, positioning pins 15 are connected to the two sides of the rear connecting block 13 and the right connecting block 14, respectively. The tips of the positioning pins 15 are respectively inserted into pin holes provided in the base plate 10, the rear side plate 20, and the right side plate 40. The positioning pins 15 can accurately locate the relative position of the rear side plate 20 and the right side plate 40 and the base plate 10, thereby ensuring that the axes of the rear cartridge 30 and the right cartridge 50 coincide or align with the axes of the second and third flanges of the eccentric tee pipe fitting 60, thereby improving the accuracy of the deformation inspection of each flange surface of the eccentric tee pipe fitting 60.

[0053] See also Figure 4 As shown, a plurality of positioning pins 15 are provided and are cross-arranged between the second screws 22 .

[0054] In this embodiment, a pair of positioning pins 15 and three second screws 22 are connected to each side of the rear connecting block 13 and the right connecting block 14 .

[0055] The above embodiments are only preferred embodiments of the present invention and are not limitations on the technical solutions of the present invention. Any technical solution that can be implemented on the basis of the above embodiments without creative work should be deemed to fall within the scope of protection of the patent of the present invention.

Claims

1. A tool for inspecting flange surfaces of tee pipe fittings with different faces, characterized in that: include: A bottom plate is provided with a first inspection hole for inspecting the first flange surface of the eccentric tee pipe fitting; a rear side plate connected to the rear side of the top surface of the bottom plate and having a first through hole formed therein; A rear cartridge is slidably connected to the first through hole and is provided with a second inspection hole for inspecting the second flange surface of the eccentric tee pipe fitting; a right side plate connected to the right side of the top surface of the bottom plate and having a second through hole formed thereon; and The right cartridge is slidably connected to the second through hole and is provided with a third inspection hole for inspecting the third flange surface of the eccentric tee pipe fitting.

2. The tool for inspecting flange surfaces of tee pipe fittings with different faces according to claim 1, characterized in that: The first inspection hole, the second inspection hole and the third inspection hole are respectively provided with an annular step at one end facing the eccentric tee pipe fitting; The inner diameter of the annular step matches the outer diameters of the first to third flanges of the corresponding eccentric tee pipe fittings, and is used to abut against the first flange surface, the second flange surface and the third flange surface of the eccentric tee pipe fitting to verify whether the outer circle of the flange surface is deformed.

3. The tool for inspecting flange surfaces of tee pipe fittings with different faces according to claim 1, characterized in that: The rear cartridge and the right cartridge have the same structure except for the different inner and outer diameters. A recessed groove is provided on the outer side wall of each cartridge, and the recessed groove extends along the axial direction of the rear cartridge and the right cartridge. The rear side plate and the right side plate are respectively threadedly connected with a first screw, and the front end of the first screw radially extends into the first through hole and the second through hole and can be inserted into the sink groove to lock the rear cartridge and the right cartridge to prevent them from falling off.

4. The tool for inspecting flange surfaces of tee pipe fittings with different faces according to any one of claims 1 to 3, characterized in that: The rear side plate is connected to the rear side of the top surface of the bottom plate through a rear connecting block; The right side plate is connected to the right side of the top surface of the bottom plate through a right connecting block.

5. The tool for inspecting flange surfaces of tee pipe fittings with different faces according to claim 4, characterized in that: The cross section of the rear connecting block is an L-shaped structure with an obtuse angle, one side of which is connected to the rear side of the top surface of the bottom plate by a plurality of second screws, and the other side is connected to the rear side plate by a plurality of second screws; The cross section of the right connecting block is a right-angled L-shaped structure, one side of which is connected to the right side of the top surface of the bottom plate through multiple second screws, and the other side is connected to the right side plate through multiple second screws.

6. The tool for inspecting flange surfaces of tee pipe fittings with different faces according to claim 5, characterized in that: Positioning pins are respectively connected to both sides of the rear connecting block and the right connecting block; The tips of the positioning pins are respectively inserted into the pin holes provided on the bottom plate, the rear side plate and the right side plate.

7. The tool for inspecting flange surfaces of tee pipe fittings with different faces according to claim 6, characterized in that: There are multiple positioning pins, which are cross-arranged between the second screws.

8. The tool for inspecting flange surfaces of tee pipe fittings with different faces according to claim 6 or 7, characterized in that: A pair of positioning pins and three second screws are connected to each side of the rear connecting block and the right connecting block.

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