Special detection tool for pipeline valve

Abstract

The utility model relates to a special detection tool for a pipeline valve. The special detection tool comprises a detection rod, a detection column and a leveling instrument, leveling of the detection column is achieved through the horizontal ruler, and through contact matching of the detection rod and the detection column, the position relation between the vernier scale mark and the detection rod, the position relation between the main ruler scale mark and the detection column and the matching relation between the vernier scale mark and the main ruler scale mark, the detection accuracy is improved. The hole system deviation value can be accurately read through the reading mode of the vernier caliper; according to the tool, the hole system position relation of the machined and formed valve body can be directly reflected on the tool, the hole system deviation value can be quantified, and the hole position can be directly detected and judged according to the set standard.

Description

Technical Field

[0001] The utility model relates to the technical field of valve detection, in particular to a special detection tool for pipeline valves. Background Art

[0002] In the production process of pipeline valves, the relative positional relationship between the rotating shaft hole and the main flow passage hole has relatively high requirements. In the actual production of valve bodies, each production factory will adopt different processing technologies according to its own equipment, and the positional relationship of the processed hole systems will also show different positional relationships.

[0003] The reasons for the deviation of the position degree of the main hole system of the valve body are as follows:

[0004] 1. The processing process route designed by the processing factory according to its own equipment may clamp and turn the valve body multiple times, resulting in inconsistent benchmarks.

[0005] 2. During the processing process, tool positioning, tool wear, and tool clamping skew cause hole position deviation.

[0006] The deviation of the position of the main hole system of the valve body will directly affect the resistance of the valve opening and closing process. In the most serious case, it can directly cause the valve core to be unable to rotate, resulting in the scrapping of the valve. Therefore, each production factory needs to detect the pipeline valve to avoid unqualified products flowing into the assembly link and causing greater losses. There is no special detection tool in the prior art, resulting in cumbersome detection and low efficiency.

[0007] To solve the above technical problems, we have designed a special detection tool for pipeline valves. Content of the Utility Model

[0008] The purpose of the utility model is to design a special detection tool for pipeline valves to solve the above problems.

[0009] The utility model realizes the above purpose through the following technical solutions:

[0010] A special detection tool for pipeline valves includes:

[0011] A detection rod; the diameter of the detection rod is slightly smaller than the driving shaft hole of the valve body; a notch is provided on one side of the lower end of the detection rod, a rectangular marking surface is formed in the vertical direction of the notch, the rectangular marking surface is perpendicular to the axis line of the main flow passage of the valve body, and a vernier scale marking is horizontally arranged at the bottom of the rectangular marking surface; the detection rod is inserted downward into the driving shaft hole.

[0012] Detection column; The detection column is formed into a columnar structure. The diameter of the detection column is slightly smaller than the diameter of the main flow channel of the valve body. The detection column is horizontally placed in the main flow channel of the valve body. A detection plane is formed at the upper end of the detection column. Main scale markings are provided on the first end face of the detection column. The lower end of the detection rod contacts the detection plane. The center of the main scale markings is the center of the first end of the detection plane of the detection column;

[0013] Level ruler; The level ruler is installed on the first end face of the detection column, and the level ruler is parallel to the detection plane.

[0014] Preferably, the center of the vernier scale markings is the center of the lower end of the rectangular marking surface.

[0015] Further, the centers of the vernier scale markings and the main scale markings are both zero points, and the values gradually increase towards both sides.

[0016] Further, the main scale markings are millimeter scale markings, and both sides of the zero point of the vernier scale markings are set with ten divisions and nine millimeters.

[0017] The beneficial effects of the present utility model are as follows:

[0018] In this application, the detection column is leveled through the level ruler. Through the contact and cooperation between the detection rod and the detection column, the positional relationship between the vernier scale markings and the detection rod, the positional relationship between the main scale markings and the detection column, and the cooperation relationship between the vernier scale markings and the main scale markings, the hole system deviation amount can be accurately read in the reading method of a vernier caliper; This application can directly reflect the positional relationship of the valve body hole system that has been processed and formed on the tooling, can quantify the hole system deviation amount, and can directly detect and determine the hole positions according to the set standards. Description of the Drawings

[0019] Figure 1 It is the front view of the present utility model;

[0020] Figure 2 It is the cross-sectional view of the present utility model;

[0021] Figure 3 It is the side view of the detection rod in the present utility model;

[0022] Figure 4 It is the front view of the detection rod in the present utility model;

[0023] Figure 5 It is the detection example diagram in the present utility model.

[0024] In the figure: 1. Valve body; 2. Main flow channel of the valve body; 3. Detection rod; 4. Vernier scale markings; 5. Detection column; 6. Main scale markings; 7. Level ruler; 8. Marking surface. Detailed Embodiment

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. The components of the embodiments of the present utility model usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0028] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "left", "right", etc. are based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships when the product of the present utility model is normally placed, or the orientation or positional relationships commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 construed as a limitation to the present utility model.

[0029] In addition, the terms "first", "second", etc. are only used for descriptive distinction and should not be construed as indicating or implying relative importance.

[0030] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, terms such as "set", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] The following will specifically describe the embodiments of the present utility model in detail with reference to the accompanying drawings.

[0032] As Figures 1-4 shown, a special detection tooling for pipeline valves includes:

[0033] Detection rod 3; the diameter of the detection rod 3 is slightly smaller than the drive shaft hole of the valve body 1; a notch is provided on one side of the lower end of the detection rod 3, and a rectangular marking surface 8 is formed in the vertical direction of the notch. The rectangular marking surface 8 is perpendicular to the axis line of the main flow channel 2 of the valve body. A vernier scale mark 4 is transversely provided at the bottom of the rectangular marking surface 8; the detection rod 3 is inserted downward into the drive shaft hole.

[0034] Detection column 5; the detection column 5 is formed into a columnar structure. The diameter of the detection column 5 is slightly smaller than the diameter of the main flow channel 2 of the valve body. The detection column 5 is horizontally placed in the main flow channel 2 of the valve body. A detection plane is formed at the upper end of the detection column 5. A main scale mark 6 is provided on the first end face of the detection column 5. The lower end of the detection rod 3 contacts the detection plane. The center of the main scale mark 6 is the center of the first end of the detection plane of the detection column 5; the center of the vernier scale mark 4 is the center of the lower end of the rectangular marking surface 8. The centers of the vernier scale mark 4 and the main scale mark 6 are both zero points, and the values increase gradually towards both sides. The main scale mark 6 is a millimeter scale mark, and both sides of the zero point of the vernier scale mark 4 are set to ten divisions and nine millimeters.

[0035] Level ruler 7; the level ruler 7 is installed on the first end face of the detection column 5 and is parallel to the detection plane.

[0036] During operation, the detection rod 3 is inserted downward through the drive shaft hole and contacts the detection plane of the detection column 5 placed in the main flow channel (when installing the detection column 5, the valve body 1 needs to be placed horizontally first, and then the detection column 5 is installed. The detection column 5 is leveled by the level ruler 7). At this time, the vernier scale mark 4 and the main scale mark 6 are abutted, and the hole system deviation amount can be obtained by reading according to the reading method of a vernier caliper. As Figure 5 shown, by reading according to the reading method of a vernier caliper, the indicated hole system deviation amount is 0.4 mm.

[0037] The above is only the preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art of this technology, without departing from the technical principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A special inspection tool for pipeline valves, characterized in that: include: Testing rod; the diameter of the testing rod is slightly smaller than the driving shaft hole of the valve body; a notch is arranged on one side of the lower end of the testing rod, a rectangular marking surface is formed in the vertical direction of the notch, the rectangular marking surface is perpendicular to the axis of the main flow channel of the valve body, and a vernier scale mark is arranged horizontally at the bottom of the rectangular marking surface; the testing rod is inserted downward into the driving shaft hole; Detection column; the detection column is formed into a columnar structure, the diameter of the detection column is slightly smaller than the diameter of the main flow channel of the valve body, the detection column is transversely placed in the main flow channel of the valve body, the upper end of the detection column is formed with a detection plane, the first end surface of the detection column is provided with a main scale mark, the lower end of the detection rod is in contact with the detection plane, and the center of the main scale mark is the center of the first end of the detection plane of the detection column; Level ruler; the level ruler is installed on the first end surface of the detection column, and the level ruler is parallel to the detection plane.

2. A pipeline valve special detection tool according to claim 1, characterized in that: The center of the vernier scale mark is the center of the lower end of the rectangular marking surface.

3. A pipeline valve special detection tool according to claim 2, characterized in that: The center of the vernier scale mark and the center of the main scale mark are both zero points, and the values ​​gradually increase toward both sides.

4. A pipeline valve special detection tool according to claim 3, characterized in that: The main scale markings are millimeter scale markings, and the vernier scale markings have ten-degree, nine-millimeter settings on either side of the zero point.

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