Quick connectable industrial pipe fitting for instrumentation

Abstract

The utility model discloses an industrial pipe fitting for instrument with quick connection, which comprises a pipeline, an outer wall of the pipeline is provided with a branch pipe, a connecting cylinder and a protective sleeve are sequentially arranged above the branch pipe, wherein the connecting cylinder is threadedly installed on the outer wall of the instrument detection rod and inserted into the inner cavity of the branch pipe, the protective sleeve is arranged around the outer part of the connecting cylinder and the instrument detection rod and is threadedly installed on the outer wall of the branch pipe, and the inner cavity of the protective sleeve is provided with an inner cylinder, and the inner cylinder tightly presses the connecting cylinder in the inner cavity of the branch pipe. The industrial pipe for instrument is provided with the protective sleeve and the connecting cylinder on the branch pipe, the connecting cylinder installed on the instrument detection rod is tightly pressed in the inner cavity of the branch pipe by the protective sleeve, multiple sealing pads are used for sealing, the installation mode of the instrument detection rod is changed, the instrument detection rod is prevented from being repeatedly threadedly disassembled, the threaded damage of the instrument detection rod is prevented, and the maintenance work in the later period is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of industrial instrument installation technology, specifically to an industrial pipe fitting for instruments that can be quickly connected. Background Technology

[0002] Industrial instruments are devices used in industrial production processes to detect, display, record, or control process parameters such as temperature, pressure, flow rate, and level. Their installation is crucial to ensuring reliable operation. During installation, industrial pipelines must be purged first to prevent impurities from damaging the instruments. The instruments should be installed in a location that accurately reflects the measured parameters and should be kept away from environments with strong vibrations, strong magnetic fields, or high temperatures to ensure that the instruments can accurately and stably obtain parameter information of the medium inside the pipeline. However, to prevent pipeline leaks, the current instrument installation method usually involves wrapping waterproof tape around the detection rod and then installing it onto the industrial pipe through the threads on the detection rod. However, this method of installing instruments on industrial pipes not only requires wrapping with waterproof tape, but the waterproof tape also hinders the assembly and disassembly of the detection rod, which is time-consuming, labor-intensive, and not conducive to later maintenance work.

[0003] Therefore, there is an urgent need for an industrial pipe for instruments that is easy to assemble and disassemble, has strong sealing properties, and can be quickly connected. Utility Model Content

[0004] To overcome the aforementioned deficiencies of the prior art, this application provides an industrial pipe fitting for instruments that can be quickly connected. A protective sleeve presses the connecting cylinder installed on the instrument detection rod into the inner cavity of the branch pipe, and multiple sealing gaskets are used for sealing. This changes the installation method of the instrument detection rod, avoids repeated threaded disassembly of the instrument detection rod, prevents damage to the threads of the instrument detection rod, and facilitates subsequent maintenance work, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An industrial pipe fitting for instruments that can be quickly connected includes: a pipe, a branch pipe provided on the outer wall of the pipe, a connecting sleeve and a protective sleeve arranged sequentially above the branch pipe, wherein the connecting sleeve is threadedly installed on the outer wall of the instrument detection rod and is inserted into the inner cavity of the branch pipe along with it, the protective sleeve surrounds the outside of the connecting sleeve and the instrument detection rod and is threadedly installed on the outer wall of the branch pipe, and the inner cavity of the protective sleeve is provided with an inner cylinder, the inner cylinder pressing the connecting sleeve tightly into the inner cavity of the branch pipe.

[0006] Preferably, the end face of the protective sleeve is provided with a through hole communicating with its inner cavity, the instrument detection rod passes through the through hole and extends into the inner cavity of the protective sleeve, and a sealing ring is provided on the inner wall of the through hole, the inner wall of the sealing ring being tightly attached to the outer wall of the instrument detection rod.

[0007] Preferably, the upper end face of the connecting cylinder is provided with an annular end plate, the diameter of which is the same as the inner diameter of the branch pipe. The connecting cylinder slides in the inner cavity of the branch pipe through the annular end plate, and the inner cylinder is pressed tightly against the upper end face of the annular end plate.

[0008] Preferably, a limiting end plate for limiting the position of the connecting cylinder is provided at the bottom of the inner cavity of the branch pipe, and an insertion hole is provided at the middle position of the limiting end plate, through which the instrument detection rod is inserted into the inner cavity of the pipe.

[0009] Preferably, the inner wall of the connecting cylinder is provided with a second threaded groove, and the connecting cylinder is threaded onto the outer wall of the instrument detection rod through the second threaded groove.

[0010] Preferably, the inner wall of the protective sleeve is provided with a first threaded groove, and the protective sleeve is threadedly installed on the outer wall of the branch pipe through the first threaded groove.

[0011] Preferably, sealing gaskets are provided between the connecting cylinder and the limiting end plate, and between the inner cylinder and the annular end plate.

[0012] Compared with the prior art, the advantages of this utility model are: By setting up a protective sleeve and a connecting sleeve, the connecting sleeve can be installed on the instrument detection rod. By installing the protective sleeve on the outer wall of the branch pipe, the inner cylinder of the protective sleeve presses down to displace the connecting sleeve, pressing the connecting sleeve tightly against the limiting end plate inside the branch pipe, thus realizing the installation of the instrument detection rod. This changes the installation method of the instrument detection rod, avoids repeated threaded disassembly of the instrument detection rod, prevents damage to the threads of the instrument detection rod, and facilitates later maintenance work. At the same time, multiple sealing gaskets are used to seal the gaps between the protective sleeve, the connecting sleeve, and the instrument detection rod, improving the sealing performance of the instrument installation. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a perspective view of an industrial pipe according to an embodiment of the present invention; Figure 2 This is a schematic diagram showing the disassembled industrial pipe according to an embodiment of the present invention; Figure 3 This is a perspective view of a protective sleeve according to an embodiment of the present invention; Figure 4 This is a perspective view of a connecting cylinder according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the assembly of an instrument and an industrial pipe according to an embodiment of the present invention.

[0015] In the diagram: 1. Pipe; 11. Branch pipe; 12. Limiting end plate; 121. Insertion hole; 2. Protective sleeve; 201. First threaded groove; 21. Inner cylinder; 22. Sealing ring; 3. Connecting cylinder; 301. Second threaded groove; 31. Annular end plate; 4. Sealing gasket. Detailed Implementation

[0016] Combination Figures 1-5 As shown, in this embodiment, an industrial pipe fitting for instruments that can be quickly connected includes: a pipe 1, a branch pipe 11 provided on the outer wall of the pipe 1, a connecting sleeve 3 and a protective sleeve 2 arranged sequentially on the upper part of the branch pipe 11. The instrument detection rod is inserted into the inner cavity of the protective sleeve 2, and then the connecting sleeve 3 is installed on the outer wall of the instrument detection rod from the bottom of the protective sleeve 2, completing the assembly of the protective sleeve 2, the connecting sleeve 3 and the instrument detection rod. Finally, the connecting sleeve 3 is inserted into the branch pipe 11, and the protective sleeve 2 is rotated outside the instrument detection rod to thread the protective sleeve 2 onto the outer wall of the branch pipe 11. The inner cylinder 21 of the inner cavity of the protective sleeve 2 presses down to displace the connecting sleeve 3, pressing the connecting sleeve 3 tightly onto the limiting end plate 12 of the inner cavity of the branch pipe 11, thereby realizing the installation of the instrument detection rod.

[0017] In this embodiment, the end face of the protective sleeve 2 is provided with a through hole communicating with its inner cavity. The instrument detection rod passes through the through hole and extends into the inner cavity of the protective sleeve 2. A sealing ring 22 is provided on the inner wall of the through hole, and the inner wall of the sealing ring 22 is tightly attached to the outer wall of the instrument detection rod. The instrument detection rod is inserted into the inner cavity of the protective sleeve 2 through the through hole to realize the assembly of the protective sleeve 2 and the instrument detection rod. At the same time, the sealing ring 22 is tightly attached to the outer wall of the instrument detection rod to seal the gap between the instrument detection rod and the inner wall of the through hole, thereby improving the sealing performance of the instrument detection rod installation.

[0018] In this embodiment, an annular end plate 31 is provided on the upper end face of the connecting cylinder 3. The diameter of the annular end plate 31 is the same as the inner diameter of the branch pipe 11. The connecting cylinder 3 slides in the inner cavity of the branch pipe 11 through the annular end plate 31, and the inner cylinder 21 is pressed tightly against the upper end face of the annular end plate 31. When the connecting cylinder 3 is inserted into the inner cavity of the branch pipe 11, the annular end plate 31 can slide against the inner wall of the branch pipe 11, limiting the position of the connecting cylinder 3 in the inner cavity of the branch pipe 11, preventing the connecting cylinder 3 from tilting in the inner cavity of the branch pipe 11, and ensuring the installation of the connecting cylinder 3.

[0019] In this embodiment, a limiting end plate 12 for limiting the position of the connecting cylinder 3 is provided at the bottom of the inner cavity of the branch pipe 11. An insertion hole 121 is provided at the middle position of the limiting end plate 12. The instrument detection rod passes through the insertion hole 121 and is inserted into the inner cavity of the pipe 1. By using the limiting end plate 12 to limit the position of the connecting cylinder 3, the connecting cylinder 3 can be prevented from falling into the pipe 1, ensuring the use of the connecting cylinder 3. At the same time, the instrument detection rod is inserted into the pipe 1 through the insertion hole 121 and contacts the fluid inside it, so as to realize the monitoring of the fluid state in the pipe 1.

[0020] In this embodiment, the inner wall of the connecting cylinder 3 is provided with a second threaded groove 301, and the connecting cylinder 3 is threaded onto the outer wall of the instrument detection rod through the second threaded groove 301; the connecting cylinder 3 is installed on the instrument detection rod by using the second threaded groove 301, and the connecting cylinder 3 and the instrument detection rod are assembled into a whole, which facilitates the installation of the instrument detection rod.

[0021] In this embodiment, the inner wall of the protective sleeve 2 is provided with a first threaded groove 201, and the protective sleeve 2 is threaded onto the outer wall of the branch pipe 11 through the first threaded groove 201. The protective sleeve 2 is installed on the outer wall of the branch pipe 11 through the first threaded groove 201, sealing the opening of the branch pipe 11. At the same time, the position of the protective sleeve 2 is adjusted so that the inner cylinder 21 of the inner cavity of the protective sleeve 2 presses down to displace the connecting cylinder 3, thereby limiting the position of the connecting cylinder 3.

[0022] In this embodiment, sealing gaskets 4 are provided between the connecting cylinder 3 and the limiting end plate 12, and between the inner cylinder 21 and the annular end plate 31. The sealing gaskets 4 are used to seal the gaps between the connecting cylinder 3 and the limiting end plate 12, and between the inner cylinder 21 and the annular end plate 31, to prevent the fluid in the pipeline 1 from leaking from the gaps, thus achieving multiple seals for the instrument installation.

[0023] The working principle of this utility model is as follows: The industrial pipe for instruments proposed in this application, by setting a protective sleeve 2 and a connecting sleeve 3, allows the instrument detection rod to be inserted into the inner cavity of the protective sleeve 2 through the through hole, completing the assembly of the protective sleeve 2 and the instrument detection rod. Then, the connecting sleeve 3 is installed on the instrument detection rod through the second threaded groove 301, assembling the connecting sleeve 3 and the instrument detection rod into a whole. The connecting sleeve 3 is then inserted into the inner cavity of the branch pipe 11. At the same time, the protective sleeve 2 is rotated on the outer wall of the instrument detection rod, and the protective sleeve 2 is installed on the outer wall of the branch pipe 11 through the first threaded groove 201, sealing the opening of the branch pipe 11. The inner cylinder 21 of the inner cavity of the protective sleeve 2 presses down to displace the connecting sleeve 3, pressing the connecting sleeve 3 tightly onto the limiting end plate 12 of the inner cavity of the branch pipe 11, thus realizing the installation of the instrument detection rod. This changes the installation method of the instrument detection rod, avoids repeated threaded disassembly of the instrument detection rod, prevents damage to the threads of the instrument detection rod, and facilitates subsequent maintenance work.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An industrial pipe fitting for instruments that can be quickly connected, comprising: Pipeline (1), characterized in that a branch pipe (11) is provided on the outer wall of the pipeline (1), and a connecting cylinder (3) and a protective sleeve (2) are arranged sequentially above the branch pipe (11), wherein the connecting cylinder (3) is threadedly installed on the outer wall of the instrument detection rod and is inserted into the inner cavity of the branch pipe (11) along with it, the protective sleeve (2) surrounds the outside of the connecting cylinder (3) and the instrument detection rod and is threadedly installed on the outer wall of the branch pipe (11), and the inner cavity of the protective sleeve (2) is provided with an inner cylinder (21), the inner cylinder (21) pressing the connecting cylinder (3) into the inner cavity of the branch pipe (11).

2. The quick-connect industrial pipe fitting for instruments according to claim 1, characterized in that, The end face of the protective sleeve (2) is provided with a through hole that communicates with its inner cavity. The instrument detection rod passes through the through hole and extends into the inner cavity of the protective sleeve (2). A sealing ring (22) is provided on the inner wall of the through hole. The inner wall of the sealing ring (22) is in close contact with the outer wall of the instrument detection rod.

3. The quick-connect industrial pipe fitting for instruments according to claim 1, characterized in that, The upper end face of the connecting cylinder (3) is provided with an annular end plate (31). The diameter of the annular end plate (31) is the same as the inner diameter of the branch pipe (11). The connecting cylinder (3) slides through the annular end plate (31) in the inner cavity of the branch pipe (11), and the inner cylinder (21) is pressed tightly against the upper end face of the annular end plate (31).

4. The quick-connect industrial pipe fitting for instruments according to claim 3, characterized in that, The bottom of the inner cavity of the branch pipe (11) is provided with a limiting end plate (12) for limiting the position of the connecting cylinder (3). A socket (121) is provided at the middle position of the limiting end plate (12). The instrument detection rod passes through the socket (121) and is inserted into the inner cavity of the pipe (1).

5. The quick-connect industrial pipe fitting for instruments according to claim 1, characterized in that, The inner wall of the connecting cylinder (3) is provided with a second threaded groove (301), and the connecting cylinder (3) is threadedly installed on the outer wall of the instrument detection rod through the second threaded groove (301).

6. The quick-connect industrial pipe fitting for instruments according to claim 1, characterized in that, The inner wall of the protective sleeve (2) is provided with a first threaded groove (201), and the protective sleeve (2) is threaded onto the outer wall of the branch pipe (11) through the first threaded groove (201).

7. The quick-connect industrial pipe fitting for instruments according to claim 4, characterized in that, A sealing gasket (4) is provided between the connecting cylinder (3) and the limiting end plate (12), and between the inner cylinder (21) and the annular end plate (31).

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