Instrument leakage prevention device

Abstract

The utility model relates to the technical field of meters, and discloses an instrument leakage prevention device which comprises a pipeline, a mounting block is arranged at the top of the pipeline, the top of the mounting block is in threaded connection with an instrument shell, a plurality of cavities are formed in the mounting block, limiting grooves are formed in the cavities, and the limiting grooves are in threaded connection with the instrument shell. A limiting groove is formed in the mounting block, a clamping plate is slidably connected to the inner wall of the limiting groove, a pulling assembly is arranged at the top of the clamping plate, a filtering plate is arranged in the mounting block, a plurality of sliding grooves are formed in the mounting block, and fixing assemblies are arranged in the sliding grooves. According to the utility model, the instrument shell can be quickly mounted and dismounted at the top of the pipeline, external tools are not needed, the operation is simple, the mounting is convenient, gas outside the pipeline is filtered, impurities are prevented from entering the pipeline, meanwhile, the filter plate is convenient to clean and maintain, and the filter plate is recycled.

Description

Technical Field

[0001] The utility model relates to the technical field of meters, in particular to an anti-leakage device for instruments and meters. Background Art

[0002] Natural gas refers to all gases that exist naturally in nature, including gases formed by various natural processes in the atmosphere, hydrosphere, and lithosphere (including oilfield gas, gas field gas, mud volcano gas, coalbed methane, and biogenic gas, etc.). The definition of "natural gas" that people have long used is a narrow definition from the perspective of energy, which refers to a mixture of hydrocarbons and non-hydrocarbon gases naturally stored in the strata. In petroleum geology, it usually refers to oilfield gas and gas field gas.

[0003] After searching, a Chinese patent document with announcement number CN212363334U discloses a gas meter with a leakage sensor, including a main body, a first flange fixedly connected to the upper part of the main body, a second flange fixedly connected to the top of the main body, a limiting block fixedly connected to the inner cavity of the second flange, a third flange connected to the top of the second flange, a connecting layer fixedly connected to the end of the third flange close to the second flange, a connecting pipe fixedly connected to the end of the third flange away from the second flange, and an instrument fixedly connected to the top of the connecting pipe. The beneficial effects are: the device is fixedly connected to the first flange at both ends of the main body, which is convenient for the gas meter to be connected to the pipeline, a rubber pad is fixedly connected to one end of the second flange close to the limiting block to prevent gas leakage, fixed blocks are connected to both ends of the instrument and a sensor is fixedly connected between the fixed blocks, which is convenient for the installation and disassembly of the sensor, a display screen is provided on the end of the instrument away from the sensor, which is convenient for displaying the metering numbers, and a filter is provided on the air inlet to prevent external debris from entering.

[0004] The above patent specification mentions that "the amount of gas passing through the main body 1 is then displayed through the meter 10, and the fixing blocks 11 fixedly connected at both ends of the sensor 13 are fixedly connected to the meter 10 through the second bolts 12, and finally the leaked gas enters from the air inlet 14 to detect the gas leakage." Although the above patent can install the meter on the main body with bolts, the installation with bolts and nuts requires the help of external tools, which is time-consuming and labor-intensive. Therefore, in view of the above shortcomings, an instrument leakage prevention device is proposed. Utility Model Content

[0005] The utility model aims to solve the shortcomings of the prior art and proposes an instrument leakage prevention device, aiming to improve the problem that the installation of bolts and nuts in the prior art requires the use of external tools for operation, which is time-consuming and labor-intensive.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An instrument leakage prevention device comprises a pipeline, a mounting block is arranged on the top of the pipeline, an instrument housing is threadedly connected to the top of the mounting block, a plurality of cavities are provided inside the mounting block, a limiting groove is provided inside the cavity, a clamping plate is slidably connected to the inner wall of the limiting groove, a pulling component is arranged on the top of the clamping plate, a filter plate is arranged inside the mounting block, a plurality of slide grooves are provided inside the mounting block, and a fixing component is arranged inside the slide groove.

[0008] Furthermore, the pulling assembly includes a connecting shaft, a pulling plate and a spring 1, the bottom of the connecting shaft is rotatably connected to the top of the clamping plate, the bottom of the pulling plate is rotatably connected to the top of the connecting shaft, and the spring 1 is sleeved on the outside of the pulling plate.

[0009] Furthermore, one end of the spring 1 is fixedly connected to the outside of the pull plate, and the other end of the spring 1 is fixedly connected to the top of the cavity.

[0010] Furthermore, a plurality of card slots 1 are provided inside the top end of the pipe, and the outer side of one side of the card plate is engaged with the inner wall of the card slot 1.

[0011] Furthermore, the fixing assembly includes a second spring, a limiting plate and a rubber column, one end of the second spring is fixedly connected to one side of the inner wall of the slide groove, one side of the limiting plate is fixedly connected to the other end of the second spring, and one side of the rubber column is fixedly connected to the other side of the limiting plate.

[0012] Furthermore, a plurality of second card slots are provided on the outside of the filter plate, and inner walls of the second card slots are engaged with the outside of the rubber column.

[0013] Furthermore, the outer portion of the limiting plate is slidably connected to the inner wall of the sliding groove, and the outer portion of the rubber column is slidably connected to the inner wall of the sliding groove.

[0014] Furthermore, flange rings are fixedly connected to both left and right sides of the pipeline, and a protective cover is threadedly connected to the front end of the instrument housing.

[0015] The utility model has the following beneficial effects:

[0016] 1. In the utility model, through the mutual cooperation of the pipeline, the mounting block, the instrument housing, the cavity, the limit groove, the clamping plate, the connecting shaft, the pull plate, the spring, the clamping groove and the like, the instrument housing can be quickly installed and removed on the top of the pipeline without the aid of external tools, and the operation is simple and the installation is convenient.

[0017] 2. In the utility model, through the mutual cooperation of the mounting block, the filter plate, the slide groove, the second spring, the limit plate, the rubber column and other structures, the gas outside the pipeline is filtered to prevent the entry of impurities and facilitate the cleaning and maintenance of the filter plate, so that the filter plate can be recycled. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of an instrument leakage prevention device proposed by the utility model;

[0019] Figure 2 A schematic diagram of the internal structure of a cavity of an instrument leakage prevention device proposed by the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of an installation block of an instrument leakage prevention device proposed by the utility model;

[0021] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0022] Legend:

[0023] 1. Pipeline; 2. Mounting block; 3. Instrument housing; 4. Cavity; 5. Limiting groove; 6. Clamping plate; 7. Connecting shaft; 8. Pull plate; 9. Spring 1; 10. Clamping groove 1; 11. Filter plate; 12. Slide groove; 13. Spring 2; 14. Limiting plate; 15. Rubber column; 16. Clamping groove 2. DETAILED DESCRIPTION

[0024] 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.

[0025] Reference Figure 1-Figure 2 The utility model provides an embodiment: an instrument leakage prevention device, including a pipeline 1, firstly, the pipeline 1 is placed in a suitable position, the left and right sides of the pipeline 1 are fixedly connected with flange rings, and then the flange rings are used to install it with the external gas pipeline, and a mounting block 2 is arranged on the top of the pipeline 1, the mounting block 2 is placed on the top of the pipeline 1, the top of the mounting block 2 is threadedly connected with an instrument housing 3, the instrument housing 3 is installed on the top of the mounting block 2, the front end of the instrument housing 3 is threadedly connected with a protective cover, the protective cover can protect the electronic screen at the front end of the instrument housing 3, a plurality of cavities 4 are provided inside the mounting block 2, a limiting groove 5 is provided inside the cavity 4, the inner wall of the limiting groove 5 is slidably connected with a card plate 6, and the card plate 6 will slide inward along the limiting groove 5 at this time.

[0026] A pulling assembly is provided at the top of the card plate 6, and the pulling assembly includes a connecting shaft 7, a pulling plate 8 and a spring 9. When the pulling plate 8 is pulled upward at the same time, the bottom of the connecting shaft 7 is rotatably connected to the top of the card plate 6, and the bottom of the pulling plate 8 is rotatably connected to the top of the connecting shaft 7. The spring 9 is sleeved on the outside of the pulling plate 8, and the spring 9 will be compressed by force. One end of the spring 9 is fixedly connected to the outside of the pulling plate 8, and the other end of the spring 9 is fixedly connected to the top of the cavity 4. At this time, the pulling plate 8 will drive the connecting shaft 7 upward to rotate inside the cavity 4 during the movement.

[0027] When the mounting block 2 cannot move downward, release the pull plate 8. A plurality of slots 10 are provided inside the top of the pipe 1. The outer side of one side of the clamping plate 6 engages with the inner wall of the slot 10. At this time, the spring 9 releases the external force absorbed during compression, and generates a reaction force on the connecting shaft 7, so that the clamping plate 6 moves outward and engages with the slot 10. This enables the instrument housing 3 to be quickly installed and removed from the top of the pipe 1 without the need for external tools. The operation is simple and the installation is convenient.

[0028] Reference Figure 1 and Figure 3 A filter plate 11 is arranged inside the mounting block 2, and the filter plate 11 can prevent external impurities from entering the interior of the pipe 1. When cleaning is required, the filter plate 11 is pressed upwards. A plurality of slide grooves 12 are provided inside the mounting block 2, and a fixing component is arranged inside the slide groove 12. The fixing component includes a spring 2 13, a limit plate 14 and a rubber column 15. The filter plate 11 will squeeze the rubber column 15 during the movement. One end of the spring 2 13 is fixedly connected to one side of the inner wall of the slide groove 12, and one side of the limit plate 14 is fixedly connected to the other end of the spring 2 13. At the same time, the spring 2 13 will also be compressed. At this time, the limit plate 14 is forced to slide toward the inside of the slide groove 12.

[0029] One side of the rubber column 15 is fixedly connected to the other side of the limit plate 14. A plurality of slots 16 are provided on the outside of the filter plate 11. The inner wall of the slots 16 is engaged with the outside of the rubber column 15. At this time, the slots 16 and the rubber column 15 are staggered, so the filter plate 11 can be removed for cleaning. The outside of the limit plate 14 is slidably connected to the inner wall of the slide groove 12, and the outside of the rubber column 15 is slidably connected to the inner wall of the slide groove 12.

[0030] During installation, the filter plate 11 is pushed into the interior of the mounting block 2 again, and the second clamping groove 16 is compressed again. At this time, the second spring 13 will release the external force absorbed during compression, and generate a reaction force on the limit plate 14, so that the rubber column 15 is engaged with the second clamping groove 16, thereby filtering the gas outside the pipeline 1 to prevent impurities from entering. At the same time, it is convenient to clean and maintain the filter plate 11, so that the filter plate 11 can be recycled, and then installed with the external gas pipeline using a flange ring.

[0031] Working principle: first place the pipeline 1 to a suitable position, then install the instrument housing 3 to the top of the mounting block 2, place the mounting block 2 to the top of the pipeline 1, and pull the pull plate 8 upwards at the same time. The spring 19 will be compressed by force. At this time, the pull plate 8 will drive the connecting shaft 7 to rotate inside the cavity 4 during the movement. At this time, the card plate 6 will slide inward along the limit groove 5. When the mounting block 2 cannot move downward, release the pull plate 8. At this time, the spring 19 will release the external force absorbed during compression, and generate a reaction force on the connecting shaft 7, so that the card plate 6 moves outward and engages with the card groove 10. A filter plate 11 is provided inside the mounting block 2. The filter plate 11 can prevent When external impurities enter the interior of the pipeline 1 and need to be cleaned, the filter plate 11 is pressed upwards. The filter plate 11 will squeeze the rubber column 15 during the movement. At this time, the limit plate 14 is forced to slide toward the inside of the slide groove 12, and the spring 2 13 is also compressed. At this time, the slot 2 16 is staggered with the rubber column 15, so that the filter plate 11 can be removed and cleaned. When installing, the filter plate 11 is pushed into the interior of the mounting block 2 again, and the slot 2 16 is compressed again. At this time, the spring 2 13 will release the external force absorbed during compression, and generate a reaction force on the limit plate 14, so that the rubber column 15 is engaged with the slot 2 16, and then it is installed with the external gas pipeline using a flange ring.

[0032] 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. An instrument leakage prevention device, comprising a pipeline (1), characterized in that: A mounting block (2) is arranged at the top of the pipeline (1), the top of the mounting block (2) is threadedly connected to an instrument housing (3), a plurality of cavities (4) are provided inside the mounting block (2), a limiting groove (5) is provided inside the cavity (4), a clamping plate (6) is slidably connected to the inner wall of the limiting groove (5), a pulling component is arranged on the top of the clamping plate (6), a filter plate (11) is arranged inside the mounting block (2), a plurality of slide grooves (12) are provided inside the mounting block (2), and a fixing component is arranged inside the slide groove (12).

2. The instrument leakage prevention device according to claim 1, characterized in that: The pulling assembly comprises a connecting shaft (7), a pulling plate (8) and a spring (9); the bottom of the connecting shaft (7) is rotatably connected to the top of the clamping plate (6); the bottom of the pulling plate (8) is rotatably connected to the top of the connecting shaft (7); and the spring (9) is sleeved on the outside of the pulling plate (8).

3. The instrument leakage prevention device according to claim 2, characterized in that: One end of the spring one (9) is fixedly connected to the outside of the pull plate (8), and the other end of the spring one (9) is fixedly connected to the top of the cavity (4).

4. The instrument leakage prevention device according to claim 1, characterized in that: A plurality of slots (10) are provided inside the top end of the pipe (1), and the outer side of one side of the clamping plate (6) is clamped with the inner wall of the slot (10).

5. The instrument leakage prevention device according to claim 1, characterized in that: The fixing assembly comprises a second spring (13), a limiting plate (14) and a rubber column (15); one end of the second spring (13) is fixedly connected to one side of the inner wall of the slide groove (12); one side of the limiting plate (14) is fixedly connected to the other end of the second spring (13); and one side of the rubber column (15) is fixedly connected to the other side of the limiting plate (14).

6. The instrument leakage prevention device according to claim 5, characterized in that: The filter plate (11) is provided with a plurality of second clamping grooves (16) on the outside, and the inner walls of the second clamping grooves (16) are clamped with the outside of the rubber column (15).

7. The instrument leakage prevention device according to claim 5, characterized in that: The outside of the limiting plate (14) is slidably connected to the inner wall of the sliding groove (12), and the outside of the rubber column (15) is slidably connected to the inner wall of the sliding groove (12).

8. The instrument leakage prevention device according to claim 1, characterized in that: Flange rings are fixedly connected to the left and right sides of the pipeline (1), and a protective cover is threadedly connected to the front end of the instrument housing (3).

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