Instrument with drainage structure

Abstract

The utility model relates to the field of instruments, in particular to an instrument with a drainage structure, which comprises an instrument body and the drainage structure arranged at the bottom of the instrument body, a drainage hole is formed in the bottom of the instrument body, and the drainage structure comprises a drainage cover, a drainage area is arranged in the drainage cover, and the drainage cover is in threaded connection with the instrument body and covers the drainage hole; the sealing gasket is arranged in a gasket groove formed in the water drainage cover; a first thread is arranged on the surface of the center rod and is in threaded connection with the drainage cover; the water drainage block is fixed at one end, close to the meter body, of the center rod; the drainage ball valve is in threaded connection with the bottom of the side end of the drainage cover and communicates with the drainage area. The water drainage structure is arranged at the bottom of the meter body, so that when the meter is maintained, only the water inlet and outlet valve of the pipe section where the meter is located needs to be closed, the meter is maintained after accumulated water is drained through the water drainage structure, and compared with the original process that the whole water inlet and outlet pipeline needs to be closed and a water drainage valve needs to be opened, the labor intensity is greatly reduced; the operation is simple and convenient, the water discharge amount is small and the efficiency is high.

Description

Technical Field

[0001] The present application relates to the field of instruments, and in particular to an instrument with a water discharge structure. Background Art

[0002] Instruments in pipelines are usually installed separately from drain valves on pipelines. Sometimes when it is necessary to maintain an instrument, the water in nearby pipelines needs to be drained. For example, when inspecting equipment and instruments in a heat exchange station, it is usually necessary to open the drain valve on the pipeline to drain the hot water or accumulated debris in the pipeline, and then maintain the instrument on the pipeline.

[0003] However, in actual application, in order to facilitate maintenance operations by maintenance personnel, the drain valve is generally installed at the low point of the pipeline, and the pipeline direction in the heat exchange station is usually complicated. When the drain valve cannot discharge sewage, it cannot guarantee that the accumulated water or deposits inside the pipeline where the instrument is located have been cleared, and thus it cannot guarantee that the pipeline is in an empty pipe state. If the instrument is maintained at this time, it is easy for the water in the pipeline to leak out, affecting the safe use of other electronic equipment, and if the leaked water pressure is high, it will also affect the safety of the maintenance personnel. In addition, when maintaining the instrument, it is necessary to open and close the drain valve, which not only has a large discharge volume, but also has a cumbersome process, a large workload, and low efficiency. Summary of the invention

[0004] In order to solve the above technical problems and enable maintenance personnel to maintain the instrument better and faster, the present application provides an instrument with a water drainage structure, which sets a water drainage structure at the bottom of the meter body, so that when maintaining the instrument, it is only necessary to close the inlet and outlet valves of the pipe section where the instrument is located, and then maintain the instrument after draining the accumulated water through the water drainage structure. Compared with the original process of closing the entire inlet and outlet water pipelines and opening the water drainage valve, the labor intensity is greatly reduced, and the operation is simple and convenient, the water discharge volume is small, and the efficiency is high.

[0005] The present application provides a meter with a water discharge structure, which adopts the following technical solution:

[0006] A meter with a water discharge structure comprises a meter body and a water discharge structure arranged at the bottom of the meter body, wherein a cylindrical water discharge hole is provided at the bottom of the meter body, and the water discharge structure comprises:

[0007] The drain cover has a drain area formed inside, is threadedly connected to the meter body, and covers the drain hole;

[0008] The sealing gasket is arranged in the gasket groove provided on the drain cover and is used for sealing between the drain cover and the meter body;

[0009] A center rod, a surface of which is provided with a first thread, the first thread being threadably connected to the drain cover thread;

[0010] A drain block is fixed to one end of the center rod close to the meter body, used to block the drain hole and extends into the meter body to allow the accumulated water to flow into the drain cover; and

[0011] The drain ball valve is threadedly connected to the bottom of the side end of the drain cover and is connected to the drain area.

[0012] Preferably, a first groove is provided on the inner surface of the drain hole of the meter body, and a first O-ring for sealing between the meter body and the drain block is provided in the first groove.

[0013] Preferably, a first locking nut is threadedly connected to the center rod, and the first locking nut abuts against the drain cover.

[0014] Preferably, a second locking nut is threadedly connected to the center rod, and the second locking nut abuts against the first locking nut.

[0015] Preferably, a clamping portion is formed on the end of the center rod away from the drain block, a rotating handle is clamped on the clamping portion, the rotating handle abuts against the first thread, and a second thread is provided on the end of the center rod away from the clamping portion, a third locking nut is threadedly connected to the second thread, and the third locking nut abuts against the rotating handle.

[0016] Preferably, the end surface of the drain block away from the center rod is a curved surface having the same shape as the inner wall of the table body.

[0017] Preferably, a positioning hole for indicating the position of the drain block is provided on the central rod.

[0018] Preferably, a second groove is provided on the inner wall of the drain cover, a second O-ring is provided in the second groove, a polished rod portion is formed on the center rod, and the second O-ring is used for sealing between the drain cover and the polished rod portion of the center rod.

[0019] Preferably, the drain structure further comprises a hose, and the hose is sleeved on the drain ball valve.

[0020] In summary, this application includes the following beneficial technical effects:

[0021] 1. This application sets a drainage structure at the bottom of the meter body, so that when maintaining the meter, it is only necessary to close the inlet and outlet valves of the pipe section where the meter is located, and then drain the accumulated water through the drainage structure to maintain the meter. Compared with the original process of closing the entire inlet and outlet water pipelines and opening the drainage valve, the labor intensity is greatly reduced, and the operation is simple and convenient, the drainage volume is small, and the efficiency is high.

[0022] 2. The present application provides a water discharge structure on the meter, so that when the meter is maintained, it is possible to check whether there is any water remaining in the meter and to discharge the remaining water.

[0023] 3. The present application sets a drainage structure so that when the meter is installed at a higher position, the drainage structure can be opened to discharge the residual water in the meter through the drainage cover and guide it to a lower place through a hose, thereby avoiding the influence of the discharged accumulated water on other electronic equipment. At the same time, it avoids the need to open the drainage valve to discharge the water in the entire inlet and outlet pipes for the original maintenance of the meter, thereby reducing the waste of water resources.

[0024] 4. The present application reduces the influence of the drainage block on the flow of water in the meter body by setting the end face of the drainage block away from the center rod to the same curved surface as the inner wall of the meter body, and adjusts the position of the drainage block relative to the meter body through the positioning hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0026] Figure 2 yes Figure 1 Explosion photo (the meter body and drain cover are cut open).

[0027] Figure 3 It is a partial exploded view of the drain cover, center rod and drain block in the embodiment of the present application.

[0028] Explanation of the reference numerals: 1. meter body; 11. drain hole; 12. first groove; 13. first O-ring; 2. drain structure; 21. drain cover; 211. drain area; 212. second groove; 213. second O-ring; 22. sealing gasket; 23. center rod; 231. first thread; 232. clamping part; 233. second thread; 234. positioning hole; 235. bare rod; 24. drain block; 241. curved surface; 25. drain ball valve; 26. first locking nut; 27. second locking nut; 28. turning handle; 29. ​​third locking nut; 30. hose. DETAILED DESCRIPTION

[0029] The present application is further described in detail below in conjunction with the accompanying drawings.

[0030] The embodiment of the present application discloses a meter with a water discharge structure.

[0031] Reference Figure 1 and Figure 2 The meter includes a meter body 1 and a drainage structure 2. A cylindrical drainage hole 11 is opened at the bottom of the meter body 1. The drainage structure 2 is installed at the bottom of the meter body 1, and the drainage structure 2 is used to block the drainage hole 11 and make the accumulated water in the meter body 1 flow out through the drainage hole 11 and the drainage structure 2.

[0032] Reference Figure 2 and Figure 3 The drainage structure 2 includes a drainage cover 21, a sealing gasket 22, a center rod 23, a drainage block 24 and a drainage ball valve 25.

[0033] A water drainage area 211 is formed inside the water drainage cover 21, an external thread is formed on the outer wall of the water drainage cover 21, an internal thread is formed at the bottom edge of the water drainage hole 11 on the meter body 1, and the external thread of the water drainage cover 21 is threadedly connected with the internal thread on the meter body 1. A first groove 12 is formed on the top end surface of the end of the water drainage cover 21 close to the water drainage hole 11, and a sealing gasket 22 is placed in the first groove 12. The sealing gasket 22 is used to seal between the meter body 1 and the water drainage cover 21.

[0034] Reference Figure 2 and Figure 3 A first thread 231 is formed on the outer surface of the center rod 23 , and an internal thread is formed inside the drain cover 21 . The center rod 23 is threadedly connected to the internal thread inside the drain cover 21 through the first thread 231 .

[0035] The drain block 24 is installed and fixed on one end of the center rod 23 close to the meter body 1. The drain block 24 is cylindrical. The diameter of the drain block 24 is the same as the diameter of the drain hole 11. In actual use, the drain block 24 and the drain hole 11 can be matched with a gap. The drain block 24 is used to block the drain hole 11 and extend into the meter body 1 so that the accumulated water can flow into the drain cover 21.

[0036] Reference Figure 2 and Figure 3 The drain ball valve 25 is threadedly connected to the bottom of the side end of the drain cover 21, and the drain ball valve 25 is connected to the drain area 211 inside the drain cover 21. Specifically, the drain ball valve 25 can be set at a 45-degree angle to the central axis of the drain cover 21.

[0037] In order to improve the sealing effect between the drain block 24 and the meter body 1, a first groove 12 is opened on the inner surface of the drain hole 11 of the meter body 1, and a first O-ring 13 is embedded in the first groove 12. When in use, the first O-ring 13 seals between the meter body 1 and the drain block 24.

[0038] Reference Figure 2 and Figure 3 In order to improve the stability of the center rod 23 on the drain cover 21, the center rod 23 is threadedly connected with a first locking nut 26 and a second locking nut 27, both of which are threadedly connected to the first thread 231, and both of which are located on the side of the drain cover 21 away from the meter body 1. When in use, the first locking nut 26 is pressed against the drain cover 21, and the second locking nut 27 is pressed against the first locking nut 26.

[0039] At the same time, in order to make it more convenient for maintenance personnel to rotate the central rod 23, a clamping portion 232 is formed on the end of the central rod 23 away from the drain block 24, and a rotating handle 28 is clamped on the clamping portion 232. The outer wall of the rotating handle 28 is formed with anti-slip grooves. In addition, a second thread 233 is formed on the central rod 23. The second thread 233 is located at the end of the clamping portion 232 on the central rod 23 away from the first thread 231. The second thread 233 is threadedly connected with a third locking nut 29. When in use, the third locking nut 29 is tightly pressed against the rotating handle 28.

[0040] Reference Figure 2 and Figure 3 In order to reduce the influence of the drain block 24 on the water flow in the meter body 1, the end face of the drain block 24 away from the center rod 23 is a curved surface 241 which is the same as the inner wall of the meter body 1, and a positioning hole 234 for indicating the position of the drain block 24 is opened on the center rod 23. When in use, the position and height of the drain block 24 at the drain hole 11 are adjusted by rotating the center rod 23. When the positioning hole 234 reaches the drain cover 21, the center rod 23 is stopped from being screwed. At this time, the curved surface 241 on the drain block 24 becomes a part of the curved surface 241 of the inner wall of the meter body 1, thereby reducing the influence of the drain block 24 on the water flow in the meter body 1.

[0041] In order to improve the sealing between the center rod 23 and the drain cover 21, a second groove 212 is opened on the inner wall of the drain cover 21, and a second O-ring 213 is embedded in the second groove 212. A light rod portion 235 is formed on the center rod 23, and the second O-ring 213 seals between the drain cover 21 and the light rod portion 235.

[0042] Reference Figure 2 and Figure 3 In order to prevent the accumulated water discharged from the drain ball valve 25 from falling on other electronic equipment, a hose 30 is connected to the water outlet of the drain ball valve 25. One end of the hose 30 is sleeved on the drain ball valve 25, and the other end of the hose 30 can be directed to the ground or other water containers such as buckets or basins.

[0043] When the meter needs maintenance, the second locking nut 27 and the first locking nut 26 are screwed and loosened in sequence, and then the rotating handle 28 is screwed to move the center rod 23 upward on the drain cover 21. If the torque required to screw the rotating handle 28 is large, it means that the water pressure in the meter body 1 is large. At this time, it is not easy to forcibly screw the rotating handle 28. It is necessary to check whether the water in the pipe section where the meter is located is closed. If the rotating handle 28 can be easily screwed, after screwing for a distance, open the drain ball valve 25 to allow the accumulated water in the meter body 1 to flow out through the drain cover 21 and the drain ball valve 25. After the drain ball valve 25 no longer discharges water, the meter can be maintained.

[0044] After the maintenance is completed, close the drain ball valve 25, then rotate the handle 28 in the opposite direction to move the center rod 23 up and down on the drain cover 21, and observe the position of the positioning hole 234. When the positioning hole 234 is exposed from the drain cover 21, stop rotating the handle 28, and tighten the first locking nut 26 and the second locking nut 27 in turn.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An instrument with a water discharge structure, characterized in that: The utility model comprises a meter body and a water discharge structure arranged at the bottom of the meter body, wherein a cylindrical water discharge hole is opened at the bottom of the meter body, and the water discharge structure comprises: The drain cover has a drain area formed inside, is threadedly connected to the meter body, and covers the drain hole; The sealing gasket is arranged in the gasket groove provided on the drain cover and is used for sealing between the drain cover and the meter body; The center rod has a first thread on its surface, and the first thread is threadedly connected to the drain cover; A drain block is fixed to one end of the center rod close to the meter body, used to block the drain hole and extends into the meter body to allow the accumulated water to flow into the drain cover; and The drain ball valve is threadedly connected to the bottom of the side end of the drain cover and is connected to the drain area.

2. The instrument with a water discharge structure according to claim 1, characterized in that: A first groove is provided on the inner surface of the drain hole of the meter body, and a first O-type sealing ring for sealing between the meter body and the drain block is provided in the first groove.

3. The instrument with a water discharge structure according to claim 1, characterized in that: The center rod is threadedly connected with a first locking nut, and the first locking nut abuts against the drain cover.

4. The instrument with a water discharge structure according to claim 3, characterized in that: A second locking nut is threadedly connected to the center rod, and the second locking nut abuts against the first locking nut.

5. The instrument with a water discharge structure according to claim 1, characterized in that: A clamping portion is formed on the end of the center rod away from the drain block, and a rotating handle is clamped on the clamping portion. The rotating handle abuts against the first thread. A second thread is provided on the end of the center rod away from the clamping portion. A third locking nut is threadedly connected to the second thread, and the third locking nut abuts against the rotating handle.

6. The instrument with a water discharge structure according to claim 1, characterized in that: The end surface of the drain block away from the central rod is a curved surface having the same shape as the inner wall of the meter body.

7. The instrument with a water discharge structure according to claim 6, characterized in that: The center rod is provided with a positioning hole for indicating the position of the drain block.

8. The instrument with a water discharge structure according to claim 1, characterized in that: A second groove is provided on the inner wall of the water drain cover, a second O-ring is provided in the second groove, a polished rod portion is formed on the center rod, and the second O-ring is used for sealing between the water drain cover and the polished rod portion of the center rod.

9. The instrument with a water discharge structure according to claim 1, characterized in that: The water discharge structure also includes a hose, and the hose is sleeved on the water discharge ball valve.

Images