A pipe inner diameter measuring instrument

Abstract

The utility model belongs to pipeline inner diameter measuring instrument technical field especially is a pipeline inner diameter measuring instrument, including the inside thread ball valve, the top threaded connection of inside thread ball valve has the plug. The utility model discloses through the hole of vertical place on the upper end of the gas medium pipeline of pre-measuring, welds the base of making to complete in the pipeline hole, tight installation is installed on the base to inside thread ball valve, and the laser range finder is inserted on the plug through the insertion hole, and then rotates the knob and drives the moving rod to move through the screw rod, and the moving rod drives the U-shaped clamping block to move, and the laser range finder is further fixed through two U-shaped clamping blocks, and then tight installation is installed on the inside thread ball valve, and the inside thread ball valve is closed when production operation, and when there is no gas medium in the pipeline of production line maintenance, opens the inside thread ball valve and uses the laser range finder to measure the pipeline inner diameter, thereby guaranteeing that the gas metering instrument pipeline inner diameter parameter setting is accurate, ensuring the accuracy and stability of equipment measurement data, effectively avoiding the measurement dispute between the plant.

Description

Technical Field

[0001] This utility model relates to the technical field of pipe inner diameter measuring instruments, specifically a pipe inner diameter measuring instrument. Background Technology

[0002] The Beiying Quality Inspection and Metrology Center is currently equipped with 314 gas metering instruments, covering various types such as orifice plate flow meters, turbine flow meters, and vortex flow meters, forming a gas energy metering network within the plant area. This network directly serves the daily cost accounting system of each branch plant. The system supports energy consumption assessment through real-time metering data, ensuring precise control of production and operating costs.

[0003] However, due to the large number of impurities in various gases, the formation of deposits reduces the inner diameter of the pipe. If the parameters of the measuring instrument are not modified, the accuracy and stability of the equipment measurement cannot be guaranteed. Therefore, we propose a pipe inner diameter measuring instrument to solve the above problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a pipe inner diameter measuring instrument, which solves the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0008] A pipe internal diameter measuring instrument includes an internal threaded ball valve. A plug is threadedly connected to the top of the internal threaded ball valve, and a laser rangefinder is movably contacted at the top of the plug. A base is threadedly connected to the bottom of the internal threaded ball valve. Two support blocks are fixedly connected to the plug. A lead screw is rotatably connected to each support block. The end of the lead screw extends to the outside of the corresponding support block and is welded with a knob. A moving rod is threadedly connected to the lead screw. A U-shaped locking block is welded to the end of the moving rod, and the U-shaped locking block is movably in contact with the laser rangefinder. Two positioning rods are welded to one side of each support block. A guide rod is slidably connected to each positioning rod, and the end of the guide rod is fixedly connected to one side of the corresponding U-shaped locking block.

[0009] Furthermore, the top of the internal thread ball valve is provided with a first internal thread, and the plug is provided with a first external thread, and the first internal thread and the first external thread are threadedly connected.

[0010] Furthermore, the bottom of the internal thread ball valve is provided with a second internal thread, and the top of the base is provided with a second external thread, the second external thread being threadedly connected to the second internal thread.

[0011] Furthermore, a plug is provided on the inner top wall of the plug, and the plug is fitted into the laser rangefinder through the plug.

[0012] Furthermore, the movable rod has a threaded hole, and the movable rod is threadedly connected to the corresponding lead screw through the threaded hole.

[0013] Furthermore, the support block has a mounting hole, and a bearing is fixedly connected to the inner wall of the mounting hole. The inner side of the inner ring of the bearing is welded to the outer side of the corresponding lead screw.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a pipe inner diameter measuring instrument, which has the following beneficial effects:

[0016] This invention involves creating a hole vertically at the top of a gas medium pipeline, welding a prefabricated base to the hole, and then screwing an internal thread ball valve onto the base. A laser rangefinder is then inserted into a plug via a connector hole. Rotating a knob moves a corresponding moving rod via a lead screw, which in turn moves a corresponding U-shaped locking block. The U-shaped locking block then slides a guide rod on a positioning rod, further securing the laser rangefinder and preventing it from loosening or falling off. Finally, the plug is screwed onto the internal thread ball valve. During production, the internal thread ball valve is closed. When there is no gas medium in the pipeline during production line maintenance, the internal thread ball valve is opened, and the laser rangefinder is used to measure the pipeline's inner diameter. This ensures accurate setting of the gas metering instrument's pipeline inner diameter parameters, guarantees the accuracy and stability of equipment measurement data, and effectively avoids inter-plant measurement disputes. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the internal thread ball valve of this utility model;

[0019] Figure 3 This utility model Figure 2 A schematic diagram of the tilted three-dimensional structure;

[0020] Figure 4 This is a three-dimensional structural diagram of the connection between the plug and the laser rangefinder of this utility model;

[0021] Figure 5 This is a three-dimensional structural diagram of the base of this utility model;

[0022] Figure 6 This is a partial three-dimensional structural diagram of the present invention.

[0023] In the diagram: 1. Internal thread ball valve; 2. Plug; 3. Laser rangefinder; 4. Base; 5. Support block; 6. Lead screw; 7. Knob; 8. Moving rod; 9. U-shaped locking block; 10. Positioning rod; 11. Guide rod; 12. First internal thread; 13. First external thread; 14. Second internal thread; 15. Second external thread; 16. Insertion hole. Detailed Implementation

[0024] 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.

[0025] Example

[0026] like Figure 1-6 As shown, an embodiment of this utility model discloses a pipe inner diameter measuring instrument, including an internal thread ball valve 1. A plug 2 is threadedly connected to the top of the internal thread ball valve 1, and a laser rangefinder 3 is movably contacted at the top of the plug 2. A base 4 is threadedly connected to the bottom of the internal thread ball valve 1. Two support blocks 5 are fixedly connected to the plug 2, and a screw 6 is rotatably connected to each support block 5. The end of the screw 6 extends to the outside of the corresponding support block 5 and is welded with a knob 7. A moving rod 8 is threadedly connected to the screw 6, and a U-shaped locking block 9 is welded to the end of the moving rod 8. The U-shaped locking block 9 is in movable contact with the laser rangefinder 3. Two positioning rods 10 are welded to one side of each support block 5, and a guide rod 11 is slidably connected to each positioning rod 10. The end of the guide rod 11 is fixedly connected to one side of the corresponding U-shaped locking block 9. A hole is made vertically at the upper end of the predicted gas medium pipe, and the completed base 4 is welded to it. Connect the internal thread ball valve 1 to the pipe opening and tighten it onto the base 4. Insert the laser rangefinder 3 into the plug 2 via the insertion hole 16. Then, rotate the knob 7. The knob 7 drives the corresponding moving rod 8 via the lead screw 6. The moving rod 8 drives the corresponding U-shaped locking block 9. The U-shaped locking block 9 drives the corresponding guide rod 11 to slide on the positioning rod 10. The two U-shaped locking blocks 9 further secure the laser rangefinder 3 to prevent loosening and detachment. Then, tighten the plug 2 onto the internal thread ball valve 1. During production, the internal thread ball valve 1 is in the closed state. When there is no gas medium in the pipeline during production line maintenance, open the internal thread ball valve 1 and use the laser rangefinder 3 to measure the inner diameter of the pipeline. This ensures the accurate setting of the pipeline inner diameter parameters of the gas metering instrument, guarantees the accuracy and stability of the equipment's metering data, and effectively avoids metering disputes between plants.

[0027] In some embodiments, the top of the internal thread ball valve 1 is provided with a first internal thread 12, and the plug 2 is provided with a first external thread 13, and the first internal thread 12 and the first external thread 13 are threadedly connected.

[0028] In some embodiments, the bottom of the internal thread ball valve 1 is provided with a second internal thread 14, and the top of the base 4 is provided with a second external thread 15. The second external thread 15 is threadedly connected to the second internal thread 14, and the installation of the base 4 is facilitated by the threaded connection.

[0029] In some embodiments, a plug hole 16 is provided on the top inner wall of the plug 2, and the plug 2 is fitted with the laser rangefinder 3 through the plug hole 16.

[0030] In some embodiments, the movable rod 8 is provided with a threaded hole, and the movable rod 8 is threadedly connected to the corresponding lead screw 6 through the threaded hole. Under the biting force of the threaded hole and the lead screw 6, the movable rod 8 can be fixed after moving to a suitable position.

[0031] In some embodiments, the support block 5 has a mounting hole, and a bearing is fixedly connected to the inner wall of the mounting hole. The inner side of the inner ring of the bearing is welded to the outer side of the corresponding lead screw 6. By welding, the bearing and the lead screw 6 are more securely fixed.

[0032] The working principle or structural principle is as follows: During use, a hole is made vertically at the upper end of the gas medium pipeline for prediction. The completed base 4 is welded to the pipeline opening. The internal thread ball valve 1 is tightened and installed on the base 4. The laser rangefinder 3 is inserted into the plug 2 through the insertion hole 16. Then, the knob 7 is turned. The knob 7 drives the corresponding moving rod 8 via the lead screw 6. The moving rod 8 drives the corresponding U-shaped locking block 9 to move. The U-shaped locking block 9 drives the corresponding guide rod 11 to slide on the positioning rod 10. The laser rangefinder 3 is further fixed by the two U-shaped locking blocks 9 to prevent loosening and falling off. The plug 2 is then tightened and installed on the internal thread ball valve 1. During production, the internal thread ball valve 1 is in the closed state. When there is no gas medium in the pipeline during production line maintenance, the internal thread ball valve 1 is opened, and the laser rangefinder 3 is used to measure the pipeline inner diameter. This ensures the accurate setting of the gas metering instrument's pipeline inner diameter parameter, ensuring the accuracy and stability of the equipment's measurement data and effectively avoiding inter-plant measurement disputes.

[0033] 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 pipe inner diameter measuring instrument, comprising an internal thread ball valve (1), characterized in that: The top of the internal thread ball valve (1) is threaded with a plug (2), the top of the plug (2) is in movable contact with a laser rangefinder (3), the bottom of the internal thread ball valve (1) is threaded with a base (4), the plug (2) is fixedly connected with two support blocks (5), the support blocks (5) are rotatably connected with a screw (6), the end of the screw (6) extends to the outside of the corresponding support block (5) and is welded with a knob (7), the screw (6) is threaded with a moving rod (8), the end of the moving rod (8) is welded with a U-shaped locking block (9), the U-shaped locking block (9) is in movable contact with the laser rangefinder (3), the support block (5) is welded with two positioning rods (10) on one side, the positioning rods (10) are slidably connected with a guide rod (11), the end of the guide rod (11) is fixedly connected to one side of the corresponding U-shaped locking block (9).

2. The pipe inner diameter measuring instrument according to claim 1, characterized in that: The top of the internal thread ball valve (1) is provided with a first internal thread (12), and the plug (2) is provided with a first external thread (13). The first internal thread (12) and the first external thread (13) are threadedly connected.

3. The pipe inner diameter measuring instrument according to claim 2, characterized in that: The bottom of the internal thread ball valve (1) is provided with a second internal thread (14), and the top of the base (4) is provided with a second external thread (15). The second external thread (15) is threadedly connected to the second internal thread (14).

4. The pipe inner diameter measuring instrument according to claim 3, characterized in that: The plug (2) has a insertion hole (16) on its top inner wall, and the plug (2) is fitted with the laser rangefinder (3) through the insertion hole (16).

5. A pipe inner diameter measuring instrument according to claim 1, characterized in that: The movable rod (8) has a threaded hole, and the movable rod (8) is threadedly connected to the corresponding lead screw (6) through the threaded hole.

6. A pipe inner diameter measuring instrument according to claim 5, characterized in that: The support block (5) has an installation hole, and a bearing is fixedly connected to the inner wall of the installation hole. The inner side of the inner ring of the bearing is welded to the outer side of the corresponding lead screw (6).

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