Positioning tool for machining inner diameter of butterfly valve sealing washer

Abstract

The utility model relates to the field of parts of pressure gauges, and discloses a positioning tool for machining the inner diameter of a butterfly valve sealing washer, which comprises a cross-shaped support, a sliding groove is arranged in the cross-shaped support, one side of the cross-shaped support is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a first threaded rod, and the output end of the first threaded rod is fixedly connected with a second threaded rod. The outer wall of the first threaded rod is in threaded connection with a first sleeve, the outer wall of the first sleeve is rotationally connected with a connecting rod, one end of the connecting rod is rotationally connected with an arc-shaped clamping plate, and a limiting assembly is arranged on one side of the arc-shaped clamping plate. According to the sealing ring clamping device, the output end of the first motor drives the first threaded rod to rotate, the first threaded rod drives the first sleeve to move, the first sleeve drives the arc-shaped clamping plate to unfold through the connecting rod to clamp and fix sealing rings of different sizes, and the effect of adapting to the sealing rings of different sizes is achieved; the problem that the practicability of the positioning tool for the inner diameter of the butterfly valve sealing washer is affected is solved, and the practicability of the positioning tool for the inner diameter of the butterfly valve sealing washer is improved.

Description

Technical Field

[0001] The utility model relates to the field of components of pressure gauges, in particular to a positioning tool for machining the inner diameter of a sealing gasket of a butterfly valve. Background Art

[0002] The butterfly valve sealing gasket is one of the key components of the butterfly valve. It is mainly used to ensure that the butterfly valve has good sealing performance when it is closed. The butterfly valve is a valve used to control the flow of fluid (liquid or gas) through the pipeline. It is named after its butterfly-like structure. A rotating disc (butterfly plate) controls the flow of fluid. The butterfly valve sealing gasket is an important part of the butterfly valve seal, and the positioning tool is a tool used to ensure the precise processing of the inner diameter of the sealing gasket. The design and manufacture of this tooling needs to take into account the shape, size and material properties of the butterfly valve sealing gasket.

[0003] After searching, the publication number: CN204935371U discloses a positioning tool for machining the inner diameter of a butterfly valve sealing gasket, including a shell, one end of the shell is provided with a short-circuit inlet, the other end of the shell is provided with a short-circuit outlet, a bypass cavity is provided in the shell, a switch rod is slidably connected to the shell wall of the bypass cavity, a piston is fixedly connected to the switch rod, a limiting protrusion is provided in the cavity on the side away from the piston in the shell, and the cavity is filled with antifreeze hydraulic oil; this patent application solves the problem that the pressure gauge is easily damaged when the pressure of the measured medium is too large, and provides a positioning tool for machining the inner diameter of the butterfly valve sealing gasket that will not damage the pressure gauge when the pressure is too large. However, the patent only solves that the threaded connection is a simple detachable connection, which is convenient and stable, and can facilitate the installation and separation of the upper and lower pressure plates. It does not solve the problem that it is inconvenient to replace different pressure plates for sealing rings of different sizes, which affects the practicality of the positioning tool for the inner diameter of the butterfly valve sealing gasket. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a positioning tool for processing the inner diameter of the butterfly valve sealing gasket, aiming to improve the problem that it is inconvenient to replace different pressure plates for sealing rings of different sizes, which affects the practicality of the positioning tool for the inner diameter of the butterfly valve sealing gasket.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a positioning tool for processing the inner diameter of a butterfly valve sealing gasket, comprising a cross bracket, a slide groove is opened inside the cross bracket, a motor is fixedly connected to one side of the cross bracket, a threaded rod is fixedly connected to the output end of the motor, a sleeve is threadedly connected to the outer wall of the threaded rod, a connecting rod is rotatably connected to the outer wall of the sleeve, one end of the connecting rod is rotatably connected to an arc-shaped clamping plate, and a limiting component is arranged on one side of the arc-shaped clamping plate.

[0006] As a further description of the above technical solution:

[0007] The limiting assembly comprises a slider, one side of which is fixedly connected to one side of the arc-shaped clamping plate, and the outer wall of the slider is slidably connected to the inside of the sliding groove.

[0008] As a further description of the above technical solution:

[0009] A base is arranged at the bottom of the cross bracket, a support column is fixedly connected to the top of the base, and a limiting groove is arranged inside the support column.

[0010] As a further description of the above technical solution:

[0011] The support column is internally rotatably connected with a limit plate, the bottom of the limit plate is fixedly connected with a second threaded rod, and the bottom of the second threaded rod is fixedly connected with a first bevel gear.

[0012] As a further description of the above technical solution:

[0013] The outer wall of the second threaded rod is threadedly connected with a second sleeve, and one side of the second sleeve is fixedly connected to one side of the cross bracket.

[0014] As a further description of the above technical solution:

[0015] The second outer walls of the threaded rod are threadedly connected with a support plate, both sides of the support plate are fixedly connected with a limiting block, and the outer wall of the limiting block is slidably connected to the inside of the limiting groove.

[0016] As a further description of the above technical solution:

[0017] The top of the base is fixedly connected to a second motor, the output end of the second motor is fixedly connected to a rotating shaft, the outer wall of the rotating shaft is fixedly connected to a second bevel gear, the top of the base is fixedly connected to a supporting block, and the outer wall of the rotating shaft is rotatably connected to the inside of the supporting block.

[0018] As a further description of the above technical solution:

[0019] The second bevel gear is meshed with the outer wall of the first bevel gear.

[0020] The utility model has the following beneficial effects:

[0021] In the utility model, firstly, the output end of the motor drives the threaded rod to rotate, the threaded rod drives the sleeve to move, and the sleeve drives the arc-shaped clamping plate to expand through the connecting rod to clamp and fix sealing rings of different sizes, thereby achieving the effect of adapting to sealing rings of different sizes, solving the problem that it is inconvenient to replace different pressure plates for sealing rings of different sizes, which affects the practicality of the positioning tooling of the inner diameter of the butterfly valve sealing gasket, and improving the practicality of the positioning tooling of the inner diameter of the butterfly valve sealing gasket.

[0022] In the utility model, the second output end of the motor drives the rotating shaft to rotate, the rotating shaft drives the first bevel gear to rotate through the second bevel gear, the first bevel gear drives the threaded rod to rotate, and the threaded rod drives the second sleeve and the support plate to move, thereby achieving the effect of adjusting the different heights of the sealing ring, solving the problem that the traditional positioning tooling for processing the inner diameter of the sealing gasket of the butterfly valve is not convenient for adjusting the height of the sealing ring, and the sealing ring needs to be processed, which affects the processing efficiency of the positioning tooling for processing the inner diameter of the sealing gasket of the butterfly valve, thereby improving the processing efficiency of the positioning tooling for processing the inner diameter of the sealing gasket of the butterfly valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A stereoscopic diagram of a positioning tool for machining the inner diameter of a butterfly valve sealing gasket proposed by the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of an arc-shaped clamping plate of a positioning tool for machining the inner diameter of a butterfly valve sealing gasket proposed by the utility model;

[0025] Figure 3 The utility model provides a schematic diagram of a limit block structure of a positioning tool for machining the inner diameter of a butterfly valve sealing gasket.

[0026] Legend:

[0027] 1. Cross bracket; 2. Slide; 3. Motor 1; 4. Threaded rod 1; 5. Sleeve 1; 6. Connecting rod; 7. Arc clamping plate; 8. Slider; 9. Base; 10. Support column; 11. Motor 2; 12. Support block; 13. Rotating shaft; 14. Threaded rod 2; 15. Limit plate; 16. Bevel gear 1; 17. Bevel gear 2; 18. Support plate; 19. Limit block; 20. Sleeve 2; 21. Limit groove. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Reference Figure 1-2The utility model provides an embodiment: a positioning tool for processing the inner diameter of a butterfly valve sealing gasket, comprising a cross bracket 1, a slide groove 2 is provided inside the cross bracket 1, a motor 3 is fixedly connected to one side of the cross bracket 1, a threaded rod 4 is fixedly connected to the output end of the motor 3, a sleeve 5 is threadedly connected to the outer wall of the threaded rod 4, a connecting rod 6 is rotatably connected to the outer wall of the sleeve 5, one end of the connecting rod 6 is rotatably connected to an arc-shaped clamping plate 7, and a limiting component is provided on one side of the arc-shaped clamping plate 7;

[0030] Specifically, the output end of the motor 3 drives the threaded rod 4 to rotate, the threaded rod 4 drives the sleeve 5 to rotate, the sleeve 5 drives the arc clamping plate 7 to expand through the connecting rod 6, the sealing ring is clamped and fixed by the arc clamping plate 7, and the arc clamping plate 7 is limited inside the slide groove 2 by the limiting component.

[0031] Reference Figure 2 The limit assembly includes a slider 8, one side of the slider 8 is fixedly connected to one side of the arc-shaped clamping plate 7, and the outer wall of the slider 8 is slidably connected to the inside of the slide groove 2;

[0032] Specifically, the arc-shaped clamping plate 7 is limited in position inside the slide groove 2 on the cross bracket 1 by the slider 8, so that the arc-shaped clamping plate 7 is limited in position to prevent dislocation when it is unfolded.

[0033] Reference Figure 3 A base 9 is provided at the bottom of the cross bracket 1, a support column 10 is fixedly connected to the top of the base 9, a limiting groove 21 is provided inside the support column 10, a limiting plate 15 is rotatably connected inside the support column 10, a threaded rod 14 is fixedly connected to the bottom of the limiting plate 15, a bevel gear 16 is fixedly connected to the bottom of the threaded rod 14, a sleeve 20 is threadedly connected to the outer wall of the threaded rod 14, one side of the sleeve 20 is fixedly connected to one side of the cross bracket 1, a support plate 18 is threadedly connected to the outer wall of the threaded rod 14, and a limiting block 19 is fixedly connected to both sides of the support plate 18, and the outer wall of the limiting block 19 is slidably connected to the inside of the limiting groove 21, a motor 11 is fixedly connected to the top of the base 9, a rotating shaft 13 is fixedly connected to the output end of the motor 11, and a bevel gear 17 is fixedly connected to the outer wall of the rotating shaft 13, a support block 12 is fixedly connected to the top of the base 9, the outer wall of the rotating shaft 13 is rotatably connected to the inside of the support block 12, and the bevel gear 17 is meshed with the outer wall of the bevel gear 16;

[0034] Specifically, the output end of the motor 2 11 drives the rotating shaft 13 to rotate, the rotating shaft 13 is limited on the base 9 through the rotating shaft 13, the rotating shaft 13 drives the bevel gear 2 17 to rotate, the bevel gear 2 17 drives the threaded rod 2 14 to rotate through the bevel gear 1 16, the threaded rod 2 14 is limited inside the support column 10 through the limiting plate 15, when the threaded rod 2 14 rotates, the cross bracket 1 is driven to adjust the height through the support plate 18 and the sleeve 2 20, and the support plate 18 is limited inside the limiting groove 21 on the support column 10 through the limiting block 19.

[0035] Working principle: When using the positioning tooling for processing the inner diameter of the butterfly valve sealing gasket, first, when the sealing ring needs to be fixed, the output end of the motor 3 drives the threaded rod 4 to rotate, the threaded rod 4 drives the sleeve 5 to move, and the sleeve 5 drives the arc clamping plate 7 to expand through the connecting rod 6. The arc clamping plate 7 is limited inside the frame 2 on the cross bracket 1 through the slider 8. When the sealing ring needs to be adjusted, the output end of the motor 2 11 drives the rotating shaft 13 to rotate, and the rotating shaft 13 drives the bevel gear 16 to rotate through the bevel gear 2 17. The bevel gear 16 drives the threaded rod 2 14 to rotate. When the threaded rod 2 14 rotates, it drives the support plate 18 and the sleeve 2 20 to rise or fall to adjust the height. The support plate 18 is limited inside the limit groove 21 on the support column 10 by the limit block 19.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A positioning tool for machining the inner diameter of a butterfly valve sealing gasket, comprising a cross bracket (1), characterized in that: A slide groove (2) is provided inside the cross bracket (1); a motor (3) is fixedly connected to one side of the cross bracket (1); a threaded rod (4) is fixedly connected to the output end of the motor (3); a sleeve (5) is threadedly connected to the outer wall of the threaded rod (4); a connecting rod (6) is rotatably connected to the outer wall of the sleeve (5); one end of the connecting rod (6) is rotatably connected to an arc-shaped clamping plate (7); and a limiting component is provided on one side of the arc-shaped clamping plate (7).

2. A positioning tool for machining the inner diameter of a butterfly valve sealing gasket according to claim 1, characterized in that: The limiting assembly comprises a slider (8), one side of the slider (8) is fixedly connected to one side of the arc-shaped clamping plate (7), and the outer wall of the slider (8) is slidably connected to the inside of the slide groove (2).

3. The positioning tool for machining the inner diameter of a butterfly valve sealing gasket according to claim 1, characterized in that: A base (9) is provided at the bottom of the cross bracket (1), a support column (10) is fixedly connected to the top of the base (9), and a limiting groove (21) is provided inside the support column (10).

4. A positioning tool for machining the inner diameter of a butterfly valve sealing gasket according to claim 3, characterized in that: The support column (10) is internally rotatably connected to a limit plate (15), the bottom of the limit plate (15) is fixedly connected to a second threaded rod (14), and the bottom of the second threaded rod (14) is fixedly connected to a first bevel gear (16).

5. A positioning tool for machining the inner diameter of a butterfly valve sealing gasket according to claim 4, characterized in that: The outer wall of the second threaded rod (14) is threadedly connected to a second sleeve (20), and one side of the second sleeve (20) is fixedly connected to one side of the cross bracket (1).

6. A positioning tool for machining the inner diameter of a butterfly valve sealing gasket according to claim 4, characterized in that: The outer wall of the second threaded rod (14) is threadedly connected to a support plate (18), and both sides of the support plate (18) are fixedly connected to limit blocks (19), and the outer wall of the limit block (19) is slidably connected to the inside of the limit groove (21).

7. The positioning tool for machining the inner diameter of a butterfly valve sealing gasket according to claim 3, characterized in that: The top of the base (9) is fixedly connected to a second motor (11), the output end of the second motor (11) is fixedly connected to a rotating shaft (13), the outer wall of the rotating shaft (13) is fixedly connected to a second bevel gear (17), the top of the base (9) is fixedly connected to a supporting block (12), and the outer wall of the rotating shaft (13) is rotatably connected to the inside of the supporting block (12).

8. A positioning tool for machining the inner diameter of a butterfly valve sealing gasket according to claim 7, characterized in that: The bevel gear 2 (17) is meshed with the outer wall of the bevel gear 1 (16).

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