Measuring air pipe structure of pneumatic pressure liquid level instrument

Abstract

The utility model relates to the technical field of air pipes of liquid level instruments, in particular to a measuring air pipe structure of a pneumatic pressure liquid level instrument, which comprises a bottom pipe structure, a connecting pipe structure and a clamping structure, the bottom of an annular plate is abutted against and attached to the top end of a rubber pad, a rubber ring is in embedded contact with an annular groove formed in the top of the rubber pad, and the bottom of the annular plate is abutted against and attached to the top end of the rubber pad. When the pull cover is manually moved leftwards, the pressing block is gradually separated from the inner wall of the clamping groove formed in the outer side of the left end of the pipe body, and at the moment, the spring is changed into an extruded state from a normal state, and when the pressing block is separated from the inner wall of the clamping groove formed in the outer side of the left end of the pipe body, the pipe body is pulled downwards, and the pressing block is pressed. The bottom pipe structure and the connecting pipe structure can be rapidly disassembled, through the arrangement, the tail end air pipe structure of the blowing type liquid level meter can be conveniently disassembled and assembled, the air pipe structure can be conveniently and regularly replaced, and meanwhile the assembled air pipe structure has good sealing performance.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid level instrument air pipe technical field, concretely is a kind of measuring air pipe structure of pneumatic pressure liquid level instrument. BACKGROUND

[0002] Taking the blowing type liquid level meter in pneumatic pressure liquid level instrument as an example, the blowing type liquid level meter is mainly composed of blowing device, differential pressure (pressure) transmitter and blowing pipeline three parts, and is suitable for the measurement of liquid level of normal pressure closed or open container.

[0003] The end air pipe structure of part blowing type liquid level meter is inconvenient to disassemble and assemble, is inconvenient to replace air pipe structure regularly, and the sealing property of air pipe structure after assembly is poor, therefore, aiming at the above problems, a kind of measuring air pipe structure of pneumatic pressure liquid level instrument is provided. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of measuring air pipe structure of pneumatic pressure liquid level instrument, to solve the end air pipe structure of part blowing type liquid level meter is inconvenient to disassemble and assemble, is inconvenient to replace air pipe structure regularly, and the sealing property of air pipe structure after assembly is poor.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of measuring air pipe structure of pneumatic pressure liquid level instrument, including bottom pipe structure, connecting pipe structure and clamping structure, the bottom pipe structure top is provided with connecting pipe structure, the connecting pipe structure top is provided with clamping structure, the bottom pipe structure includes horn cover, cone cover, combination board frame, sleeve and circular arc diaphragm, the horn cover inner wall is fixedly provided with cone cover and combination board frame, the combination board frame bottom is provided with sleeve, the sleeve inside is fixedly provided with circular arc diaphragm, the connecting pipe structure includes pipe body and rubber pad, the pipe body top end is fixedly provided with rubber pad, the horn cover top end is fixedly provided with pipe body bottom end, the clamping structure includes assembly pipe, ring plate, rubber ring, cylinder, round cover, first wire rod, pressing block, second wire rod, pull cover and spring, the assembly pipe inner wall is fixedly provided with ring plate, the ring plate bottom end is fixedly provided with rubber ring, the assembly pipe left end is fixedly provided with cylinder, the cylinder inner wall is slidably provided with round cover, the round cover right end is fixedly provided with first wire rod, the first wire rod right end is fixedly provided with pressing block, the round cover left end is fixedly provided with second wire rod, the second wire rod left end is fixedly provided with pull cover, the round cover left end, cylinder left end inner wall is fixedly provided with spring between.

[0007] Preferably, the cone cover is internally provided with an exhaust hole, the sleeve top and the through hole internally provided at the bottom end of the combination board frame are fixedly communicated, and the circular arc diaphragm is internally provided with a cross hole.

[0008] Preferably, the bottom of the ring plate abuts against the top of the rubber pad, and the rubber ring and the top of the rubber pad are fitted into a groove for contact.

[0009] Preferably, the spring is spirally distributed on the outside of the second rod, the first rod is slidably disposed inside the right end of the cylinder, and the second rod is slidably disposed inside the left end of the cylinder.

[0010] Preferably, the first rod is slidably disposed inside the left end of the assembly tube, and slots are provided on the inner wall of the left side of the assembly tube and the outer side of the left end of the tube body. The pressure block abuts against and fits against the inner wall of the slot provided on the outer side of the left end of the tube body.

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

[0012] In this invention, when the device is in the assembled state, the bottom of the ring plate abuts against the top of the rubber pad, and the rubber ring and the top of the rubber pad are in a ring groove that fits into contact. When the cover is manually moved to the left, the aforementioned round cover, the first rod, the pressure block, and the second rod move to the left simultaneously. The pressure block gradually disengages from the inner wall of the slot on the outer side of the left end of the tube. At this time, the spring changes from the normal state to the compressed state. When the pressure block disengages from the inner wall of the slot on the outer side of the left end of the tube, the tube is pulled down, which allows for quick disassembly of the bottom tube structure and the connecting tube structure. Similarly, the bottom tube structure and the connecting tube structure can also be quickly installed. Through the above settings, the end air pipe structure of the air-blowing level gauge can be easily disassembled and assembled, facilitating the periodic replacement of the air pipe structure. At the same time, the assembled air pipe structure has good sealing performance. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a cross-sectional schematic diagram of some components of the bottom tube structure, connecting tube structure, and clamping structure of this utility model.

[0015] Figure 3 This utility model Figure 2 A schematic diagram of the bottom structure;

[0016] Figure 4 This utility model Figure 3 A schematic diagram of the structure at point A;

[0017] Figure 5 This utility model Figure 2 A schematic diagram of the top structure;

[0018] Figure 6 This utility model Figure 5 A schematic diagram of the structure at point B;

[0019] Figure 7 This is a schematic cross-sectional view of some components of the card-mounting structure of this utility model;

[0020] Figure 8 This is a schematic diagram of the installation position of the arc-shaped diaphragm of this utility model.

[0021] In the diagram: 1. Bottom tube structure; 11. Trumpet cover; 12. Conical cover; 13. Combined plate frame; 14. Sleeve; 15. Arc diaphragm; 2. Connecting tube structure; 21. Tube body; 22. Rubber pad; 3. Clip-on structure; 301. Assembly tube; 302. Ring plate; 303. Rubber ring; 304. Column; 305. Round cover; 306. First line rod; 307. Pressure block; 308. Second line rod; 309. Pull cover; 310. Spring. Detailed Implementation

[0022] 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.

[0023] In the embodiments of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the position or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Similarly, words such as "a," "one," or "the" do not indicate a quantity limitation, but rather indicate the presence of at least one. Words such as "comprising" or "including" mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects.

[0024] Furthermore, in the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0025] Please see Figures 1-8 This utility model provides a technical solution:

[0026] A measuring tube structure for a pneumatic pressure level gauge includes a bottom tube structure 1, a connecting tube structure 2, and a clamping structure 3. The connecting tube structure 2 is located at the top of the bottom tube structure 1, and the clamping structure 3 is located at the top of the connecting tube structure 2. The bottom tube structure 1 includes a horn cover 11, a conical cover 12, a combined plate frame 13, a sleeve 14, and an arcuate diaphragm 15. The conical cover 12 and the combined plate frame 13 are fixedly mounted on the inner wall of the horn cover 11. The sleeve 14 is located at the bottom of the combined plate frame 13, and the arcuate diaphragm 15 is fixedly mounted inside the sleeve 14. The connecting tube structure 2 includes a tube body 21 and a rubber pad 22. The rubber pad 22 is fixedly mounted at the top of the tube body 21. The top of the horn cover 11 is fixedly mounted to the bottom of the tube body 21. The clamping structure 3 includes an assembly tube 301 and a ring plate. 302, rubber ring 303, column cylinder 304, round cover 305, first wire rod 306, pressure block 307, second wire rod 308, pull cover 309, and spring 310. An annular plate 302 is fixedly installed on the inner wall of the assembly tube 301. A rubber ring 303 is fixedly installed at the bottom end of the annular plate 302. A column cylinder 304 is fixedly installed at the left end of the assembly tube 301. A round cover 305 is slidably installed on the inner wall of the column cylinder 304. A first wire rod 306 is fixedly installed at the right end of the round cover 305. A pressure block 307 is fixedly installed at the right end of the first wire rod 306. A second wire rod 308 is fixedly installed at the left end of the round cover 305. A pull cover 309 is fixedly installed at the left end of the second wire rod 308. A spring 310 is fixedly installed between the left end of the round cover 305 and the left end of the inner wall of the column cylinder 304.

[0027] The cone cap 12 has an exhaust hole inside. The top of the sleeve 14 is fixedly connected to the through hole inside the bottom of the combined plate frame 13. The cross hole inside the arc diaphragm 15 forms an exhaust passage inside the bottom tube structure 1 through the above-mentioned arrangement.

[0028] The bottom of the ring plate 302 abuts against the top of the rubber pad 22, and the rubber ring 303 and the top of the rubber pad 22 are fitted with an annular groove. Through the above arrangement, a sealing structure is formed between the connecting pipe structure 2 and the clamping structure 3.

[0029] Spring 310 is spirally distributed on the outside of the second rod 308. The first rod 306 is slidably disposed inside the right end of the cylinder 304, and the second rod 308 is slidably disposed inside the left end of the cylinder 304. Through the above arrangement, a horizontal sliding limiting structure is formed for the round cover 305, the first rod 306, the pressure block 307, the second rod 308, and the pull cover 309.

[0030] The first rod 306 is slidably disposed inside the left end of the assembly tube 301. The inner wall of the left side of the assembly tube 301 and the outer side of the left end of the tube body 21 are provided with slots. The pressure block 307 abuts against the inner wall of the slot on the outer side of the left end of the tube body 21. With the above arrangement, it is convenient to clamp the pressure block 307 and the tube body 21.

[0031] Work process: This utility model provides a measuring air tube structure for a pneumatic pressure level gauge, which allows for convenient disassembly and assembly of the end air tube structure of the air-blowing level gauge, facilitating periodic replacement of the air tube structure. At the same time, the assembled air tube structure has good sealing performance.

[0032] The assembly tube 301 is an anchoring structure. The assembly tube 301 can be quickly positioned and anchored by the pin hole inside the anchoring plate on the outside of the assembly tube 301. The top of the assembly tube 301 is connected to the pressure transmitter of the air-blowing level gauge through a pipe.

[0033] The bottom pipe structure 1 and connecting pipe structure 2 of this device are integrated fixed structures. The round cover 305, the first wire rod 306, the pressure block 307, the second wire rod 308, and the pull cover 309 are fixed rod structures. When the device is in the assembled state, the bottom of the ring plate 302 abuts against the top of the rubber pad 22, and the rubber ring 303 is in contact with the top of the rubber pad 22 through an annular groove. The device can be manually moved to the left. Pulling the cover 309 causes the aforementioned round cover 305, first wire rod 306, pressure block 307, and second wire rod 308 to move synchronously to the left. The pressure block 307 gradually disengages from the inner wall of the slot opened on the outer side of the left end of the tube body 21. At this time, the spring 310 changes from the normal state to the squeezed state. When the pressure block 307 disengages from the inner wall of the slot opened on the outer side of the left end of the tube body 21, the tube body 21 is pulled down, which allows for the quick disassembly of the bottom tube structure 1 and the connecting tube structure 2. Similarly, the bottom tube structure 1 and the connecting tube structure 2 can also be quickly installed.

[0034] When in use, the gas inside the bottom pipe structure 1 and the connecting pipe structure 2 flows downward through the pipe body 21 and the sleeve 14, and is discharged through the cross hole opened inside the arc diaphragm 15 and the exhaust hole opened inside the cone cover 12, forming a connected gas passage.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A measuring tube structure for a pneumatic pressure level gauge, comprising a bottom tube structure (1), a connecting tube structure (2), and a mounting structure (3), characterized in that: The bottom tube structure (1) is provided with a connecting tube structure (2) at the top, and the connecting tube structure (2) is provided with a clamping structure (3) at the top. The bottom tube structure (1) includes a horn cover (11), a cone cover (12), a combined plate frame (13), a sleeve (14), and an arc diaphragm (15). The cone cover (12) and the combined plate frame (13) are fixedly provided on the inner wall of the horn cover (11). The sleeve (14) is provided at the bottom of the combined plate frame (13). The arc diaphragm (15) is fixedly provided inside the sleeve (14). The connecting tube structure (2) includes a tube body (21) and a rubber pad (22). The rubber pad (22) is fixedly provided at the top of the tube body (21). The top of the horn cover (11) is fixedly provided to the bottom of the tube body (21). The clamping structure (3) includes an assembly tube (301), a ring plate (302), a rubber ring (303), and a cylindrical tube (304). The assembly tube (301) includes a round cover (305), a first wire rod (306), a pressure block (307), a second wire rod (308), a pull cover (309), and a spring (310). An annular plate (302) is fixedly installed on the inner wall of the assembly tube (301), and a rubber ring (303) is fixedly installed at the bottom end of the annular plate (302). A cylindrical tube (304) is fixedly installed at the left end of the assembly tube (301), and a round cover is slidably installed on the inner wall of the cylindrical tube (304). (305) A first wire rod (306) is fixedly installed at the right end of the round cover (305), a pressure block (307) is fixedly installed at the right end of the first wire rod (306), a second wire rod (308) is fixedly installed at the left end of the round cover (305), a pull cover (309) is fixedly installed at the left end of the second wire rod (308), and a spring (310) is fixedly installed between the left end of the round cover (305) and the inner wall of the left end of the column (304).

2. The measuring air tube structure of a pneumatic pressure level gauge according to claim 1, characterized in that: The cone cap (12) has an exhaust hole inside, the top of the sleeve (14) is fixedly connected to the through hole opened inside the bottom of the combined plate frame (13), and the arc diaphragm (15) has a cross hole inside.

3. The measuring air tube structure of a pneumatic pressure level gauge according to claim 1, characterized in that: The bottom of the ring plate (302) abuts against the top of the rubber pad (22), and the rubber ring (303) is fitted into the top of the rubber pad (22) with a ring groove.

4. The measuring air tube structure of a pneumatic pressure level gauge according to claim 1, characterized in that: The spring (310) is spirally distributed on the outside of the second rod (308). The first rod (306) is slidably disposed inside the right end of the cylinder (304), and the second rod (308) is slidably disposed inside the left end of the cylinder (304).

5. The measuring air tube structure of a pneumatic pressure level gauge according to claim 1, characterized in that: The first rod (306) is slidably disposed inside the left end of the assembly tube (301). The inner wall of the left side of the assembly tube (301) and the outer side of the left end of the tube body (21) are provided with slots. The pressure block (307) abuts against the inner wall of the slot provided on the outer side of the left end of the tube body (21).

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