Instrument detection device

Abstract

The utility model is applicable to the technical field of instrument detection, and provides an instrument detection device, the supporting frame and the screw are arranged, the screw is arranged outside the water tank, a worker can conveniently carry out lubricating maintenance operation on the instrument detection device, and compared with the condition that the screw is soaked in a water environment for a long time and is extremely easy to be corroded in the prior art, the working efficiency is improved. The problem of screw rod damage caused by corrosion is effectively avoided, the stability and reliability of operation of the whole device are powerfully ensured, the transverse plate, the supporting frame, the insertion pipes, the air tap and the driving assembly are arranged, under the action of the driving assembly, the two insertion pipes can be promoted to move close to each other relatively, and in the process, the screw rod is prevented from being damaged. The air nozzles located at the ends of the two insertion pipes can be accurately and smoothly inserted into the two ends of the flow meter, the efficient sealing effect on the two ends of the flow meter is practically achieved, and compared with the tedious mode that the flow meter is installed through bolts in the prior art, the great convenience advantage is shown in the disassembly and assembly link of the flow meter.

Description

Technical Field

[0001] This utility model relates to the field of instrument testing technology, specifically an instrument testing device. Background Technology

[0002] Flow meters play a crucial role in industrial pipelines across numerous industries, measuring the flow rate of large-diameter gases, liquids, steam, and other fluids. In the manufacturing process of Roots flow meters, sealing testing is a critical step in ensuring product quality. Currently, a common practice is for workers to place the Roots flow meter in a water tank and judge its sealing performance by observing whether air bubbles are generated.

[0003] A search revealed a patent, CN 219347917 U, entitled "A Sealing Detection Device for a Gas Roots Flow Meter." This device uses a drive motor to move a detection plate up and down, allowing it to be easily moved to the outside of the testing tank. This facilitates the installation and disassembly of the gas Roots flow meter, significantly improving operational convenience. During testing, the detection plate can be fitted to both ends of the gas Roots flow meter, enabling sealing at both ends. Gas is then introduced into the gas Roots flow meter via a connecting pipe to achieve the sealing test.

[0004] However, this application also has some shortcomings: the screw used to drive the lifting and lowering of the detection plate is in the water environment inside the tank for a long time. Over time, the screw will be corroded. Due to the corrosion of the screw, its surface may develop rust, pits, or even structural damage. This will increase the friction between the screw and the nut and other mating parts, increase the movement resistance, and thus adversely affect the normal up and down movement of the detection plate, reducing the working efficiency and stability of the detection device. In addition, in this application, the flow meter is installed between the two detection plates by bolts. In actual operation, this installation method is relatively cumbersome. Each installation and disassembly requires the operator to use tools to tighten or loosen the bolts. This not only consumes a lot of time and manpower, but also, during frequent operation, the bolts may strip or be damaged, further affecting the disassembly and assembly efficiency and hindering large-scale production and testing processes. Based on these problems, there is an urgent need to design a special technical solution to solve them in order to optimize the performance and ease of operation of the Roots flow meter sealing detection device. Utility Model Content

[0005] The purpose of this invention is to provide a detection device for an instrument to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A detection device for an instrument includes a base and a flow meter. A water tank and a support frame are fixedly mounted on the base. The support frame has an L-shaped structure. A screw is rotatably mounted inside the support frame. The screw is driven by a first motor mounted on the support frame, and a matching screw sleeve is installed on the screw. A horizontal plate is fixedly mounted on the side of the screw sleeve. A pair of sliding plates are symmetrically slidably mounted on the bottom surface of the horizontal plate. A support plate is fixedly mounted on the bottom surface of the sliding plates. An insertion tube is mounted on the support plate. A limit plate is fixedly mounted on the insertion tube. An air nozzle is installed at one end of the insertion tube, and an air inlet pipe is installed at the other end. The flow meter is inserted between the two air nozzles. A driving assembly is also provided on the horizontal plate to provide power for the two support plates to move closer or further apart.

[0008] As a further embodiment of this utility model: the driving assembly includes a bidirectional lead screw rotatably mounted inside the horizontal plate, the bidirectional lead screw is driven by a second motor provided at the end of the horizontal plate, and threaded bushings are symmetrically mounted on the two threaded portions of the bidirectional lead screw, the threaded bushings are slidably disposed inside the horizontal plate, and the slide plate is fixedly mounted on the bottom surface of the threaded bushings.

[0009] As a further embodiment of this invention, the air nozzle is also equipped with multiple rubber sealing rings.

[0010] As a further embodiment of this utility model: a pair of guide rails are fixedly arranged side by side on the side wall of the water tank, a pair of sliders are slidably arranged in the guide rails, and a placement frame is fixedly installed on the side of the two sliders. The placement frame has a "U" shaped structure and an arc-shaped seat is fixedly arranged in the placement frame. The insertion tube passes through the side wall of the placement frame.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention, by setting up a support frame and a screw, with the screw positioned outside the water tank, allows for convenient lubrication and maintenance when the screw is in operation for extended periods. This contrasts sharply with existing technologies where the screw is constantly immersed in water and prone to corrosion, effectively preventing damage caused by corrosion and ensuring the stability and reliability of the entire device. The arrangement of the horizontal plate, support frame, insert pipes, air nozzles, and drive assembly, under the action of the drive assembly, allows the two insert pipes to move closer together. During this process, the air nozzles at the ends of the two insert pipes can be accurately and smoothly inserted into both ends of the flow meter, achieving a highly efficient seal. Compared to the cumbersome bolt-based flow meter installation method in existing technologies, this invention offers significant advantages in the disassembly and assembly of the flow meter. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a detection device for an instrument;

[0014] Figure 2 This is a front sectional view of the track slab in the testing device of an instrument.

[0015] Figure 3 This is a partial enlarged view of the detection device of an instrument;

[0016] Figure 4 for Figure 3 Enlarged view of the shelf in the middle;

[0017] In the diagram: 1. Base; 2. Flow meter; 3. Water tank; 4. Support frame; 5. Screw; 6. First motor; 7. Screw sleeve; 8. Horizontal plate; 9. Slide plate; 10. Support plate; 11. Insert pipe; 12. Air inlet pipe; 13. Limiting plate; 14. Air nozzle; 15. Rubber sealing ring; 16. Two-way lead screw; 17. Second motor; 18. Threaded bushing; 19. Guide rail; 20. Slider; 21. Placement rack; 22. Arc-shaped seat. Detailed Implementation

[0018] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0019] Example 1

[0020] Please see Figure 1-4A detection device for an instrument includes a base 1 and a flow meter 2. A water tank 3 and a support frame 4 are fixedly mounted on the base 1. The support frame 4 has an L-shaped structure. A screw 5 is rotatably mounted inside the support frame 4. The screw 5 is driven by a first motor 6 mounted on the support frame 4, and a matching screw sleeve 7 is installed on the screw 5. A horizontal plate 8 is fixedly mounted on the side of the screw sleeve 7. A pair of sliding plates 9 are symmetrically slidably mounted on the bottom surface of the horizontal plate 8. A support plate 10 is fixedly mounted on the bottom surface of the sliding plates 9. An insertion tube 11 is mounted on the support plate 10. A limit plate 13 is fixedly mounted on the insertion tube 11. An air nozzle 14 is installed at one end of the insertion tube 11, and an air inlet pipe 12 is installed at the other end. The flow meter 2 is inserted between the two air nozzles 14. A driving assembly is also provided on the horizontal plate 8. The driving assembly is used to provide power for the two support plates 10 to move closer or further apart. The screw 5 is located outside the water tank 3. When the screw 5 is in operation for a long time, the staff can easily carry out lubrication and maintenance. In contrast to the existing technology where the screw 5 is immersed in water for a long time and is easily corroded, this effectively avoids the problem of screw 5 being damaged by corrosion, and strongly ensures the stability and reliability of the entire device. The horizontal plate 8, support frame 4, insertion tube 11, air nozzle 14 and drive component are set up so that the two insertion tubes 11 can move closer to each other under the action of the drive component. During this process, the air nozzle 14 located at the ends of the two insertion tubes 11 can be accurately and smoothly inserted into both ends of the flow meter 2 and effectively achieve a high-efficiency sealing effect on both ends of the flow meter 2. Compared with the cumbersome method of installing the flow meter 2 with bolts in the existing technology, this method shows great convenience in the disassembly and assembly of the flow meter 2.

[0021] The drive assembly includes a bidirectional lead screw 16 rotatably mounted in the horizontal plate 8. The bidirectional lead screw 16 is driven by a second motor 17 located at the end of the horizontal plate 8. Threaded bushings 18 are symmetrically mounted on the two threaded portions of the bidirectional lead screw 16. The threaded bushings 18 are slidably mounted in the horizontal plate 8. The slide plate 9 is fixedly mounted on the bottom surface of the threaded bushings 18.

[0022] In addition, multiple rubber sealing rings 15 are installed on the air nozzle 14. The setting of the rubber sealing rings 15 further improves the sealing effect of the air nozzle 14 on both ends of the flow meter 2.

[0023] Example 2

[0024] This embodiment is an improvement on embodiment 1, specifically as follows:

[0025] Please see Figure 2-4A pair of guide rails 19 are fixedly arranged side by side on the side wall of the water tank 3. A pair of sliders 20 are slidably arranged inside the guide rails 19. A placement frame 21 is fixedly installed on the side of the two sliders 20. The placement frame 21 has a "U" shaped structure and an arc-shaped seat 22 is fixedly arranged inside the placement frame 21. The insertion tube 11 passes through the side wall of the placement frame 21. The arrangement of the guide rails 19, sliders 20 and placement frame 21 can not only guide the up and down movement of the horizontal plate 8 and ensure that the flow meter 2 installed below the horizontal plate 8 can move up and down stably, but also the placement frame 21 can temporarily hold the flow meter 2 when it is disassembled and assembled, which further facilitates the disassembly and assembly of the flow meter 2.

[0026] Working principle: When testing flow meter 2, first place flow meter 2 on the placement rack 21. Then, control the second motor 17 to operate. When the second motor 17 drives the bidirectional screw 16 to rotate, it can drive the two support plates 10 to move closer to each other, and make the insertion tubes 11 installed on the two support plates 10 move closer to both ends of flow meter 2. After the insertion nozzles on the insertion tubes 11 are fully inserted into flow meter 2, the two ends of flow meter 2 can be sealed. After sealing, control the first motor 6 to operate. When the first motor 6 drives the screw 5 to rotate, it can make the horizontal plate 8 move downward together with flow meter 2. After flow meter 2 sinks below the water level of water tank 3, air is injected into the two air inlet pipes 12 by air pump. Observe whether there are air bubbles to determine whether flow meter 2 is qualified. After the test is completed, control the first motor 6 to reverse. After flow meter 2 is fully raised above the water level, control the second motor 17 to reverse, which can drive the two insertion nozzles to be pulled out from both ends of flow meter 2, and disassemble flow meter 2.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A detection device for an instrument, comprising a base (1) and a flow meter (2), wherein a water tank (3) and a support frame (4) are fixedly mounted on the base (1), characterized in that, The support frame (4) has an L-shaped structure. A screw (5) is rotatably installed inside the support frame (4). The screw (5) is driven by a first motor (6) installed on the support frame (4). A matching screw sleeve (7) is installed on the screw (5). A horizontal plate (8) is fixedly installed on the side of the screw sleeve (7). A pair of sliding plates (9) are symmetrically slidably installed on the bottom surface of the horizontal plate (8). A support plate (10) is fixedly installed on the bottom surface of the sliding plate (9). A tube (11) is installed on the support plate (10). A limit plate (13) is fixedly installed on the tube (11). An air nozzle (14) is installed at one end of the tube (11), and an air inlet pipe (12) is installed at the other end. The flow meter (2) is inserted between the two air nozzles (14). A drive assembly is also provided on the horizontal plate (8). The drive assembly is used to provide power for the two support plates (10) to move closer or further apart.

2. The detection device of the instrument according to claim 1, characterized in that, The drive assembly includes a bidirectional lead screw (16) rotatably mounted in the horizontal plate (8). The bidirectional lead screw (16) is driven by a second motor (17) provided at the end of the horizontal plate (8). Threaded bushings (18) are symmetrically mounted on the two threaded portions of the bidirectional lead screw (16). The threaded bushings (18) are slidably disposed in the horizontal plate (8). The slide plate (9) is fixedly mounted on the bottom surface of the threaded bushings (18).

3. The detection device of the instrument according to claim 1, characterized in that, The air nozzle (14) is also equipped with multiple rubber sealing rings (15).

4. The detection device of the instrument according to claim 1, characterized in that, A pair of guide rails (19) are fixedly arranged side by side on the side wall of the water tank (3). A pair of sliders (20) are slidably arranged inside the guide rails (19). A placement rack (21) is fixedly installed on the side of the two sliders (20). The placement rack (21) has a "U" shaped structure and an arc-shaped seat (22) is fixedly arranged inside the placement rack (21). The insertion tube (11) passes through the side wall of the placement rack (21).

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