Connecting piece

Abstract

The utility model provides a connecting piece, and belongs to the technical field of machinery. The connecting piece comprises a valve body, the valve body is provided with a first channel arranged in the length direction and a mounting hole perpendicular to the first channel, and the two ends of the valve body are each provided with a first connecting part around the first channel; the connecting ring body is provided with a second connecting part which is detachably connected with the first connecting part, the connecting ring body is provided with a second channel which is communicated with the first channel, the connecting ring body is provided with a connecting groove which is formed around the second channel, and a pipeline is inserted into the connecting groove; the connecting groove is provided with a first inner wall and a second inner wall, and a first sealing ring is embedded in the first inner wall or / and the second inner wall. The utility model has the advantages that the connection is convenient, and flange connection is not needed.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery, in particular to a connecting piece. Background Art

[0002] The traditional flow meter is a very important flow measurement device, which usually has a relatively fixed installation method, that is, its valve body connector often needs to rely on the installation flange to connect with the flange of the pipeline. However, it is not difficult to find that in the actual pipeline laying and use, there are various different connection methods. Among them, many pipelines do not use flange connection. They use direct card locking method. Traditional flow meters that rely on flange connection cannot be successfully installed when facing such non-flange connected pipelines, and cannot be put into normal use on these pipelines. Summary of the Invention

[0003] The purpose of the utility model is to solve the above problems in the existing technology and to provide a connector which has the characteristics of easy connection and no need for flange connection.

[0004] The purpose of this utility model can be achieved through the following technical solutions:

[0005] A connecting piece, comprising:

[0006] a valve body having a first passage arranged along its length and a mounting hole perpendicular to the first passage, wherein both ends of the valve body are provided with first connecting portions surrounding the first passage;

[0007] A connecting ring body, wherein the connecting ring body has a second connecting portion detachably connected to the first connecting portion, the connecting ring body has a second channel connected to the first channel, the connecting ring body has a connecting groove arranged around the second channel, the connecting groove is used for inserting the pipeline, the connecting groove has a first inner wall and a second inner wall, and a first sealing ring is embedded in the first inner wall and / or the second inner wall.

[0008] In the above-mentioned connecting member, the first connecting part includes an annular groove arranged on the valve body, the annular groove is connected to the first channel, the inner wall of the annular groove is provided with an internal thread, the second connecting part is provided with an external thread, and the first connecting part is threadedly connected to the second connecting part.

[0009] In the above-mentioned connecting piece, the bottom wall of the annular groove is provided with a mounting groove, and a second sealing ring is installed in the mounting groove.

[0010] In the above-mentioned connecting member, when the first connecting portion is connected to the second connecting portion, the inner wall of the first channel is in contact with the inner wall of the second channel.

[0011] In the above-mentioned connecting piece, the inner ring of the connecting ring body is provided with a guide portion, and the guide portion is located at an end away from the valve body.

[0012] In the above-mentioned connecting member, a guide surface is provided on the opening end of the second sealing ring facing the connecting groove.

[0013] Compared with the prior art, this application has the following advantages:

[0014] In the present application, the first connecting parts at both ends of the valve body can be detachably connected to the second connecting parts of the connecting ring body. This detachable design facilitates the assembly, maintenance and replacement of the connecting parts. The connecting ring body can be set with multiple different size structures and can adapt to pipes of different diameters. When the pipe is inserted into the connecting groove, the sealing ring will fit tightly against the outer wall of the pipe to play a sealing role, preventing fluid leakage when flowing through here, thereby ensuring the sealing and normal operation of the entire fluid delivery system. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional structural diagram in this application;

[0016] Figure 2 This is a cross-sectional structural diagram of the disassembled connecting ring in this application;

[0017] In the figure,

[0018] 100. Pipeline;

[0019] 2. Valve body; 21. First channel; 22. Mounting hole; 23. First connecting portion; 231. Annular groove; 232. Internal thread;

[0020] 3. Connecting ring; 31. Second connecting portion; 311. External thread; 32. Connecting groove; 321. First inner wall; 322. Second inner wall; 33. Second channel; 34. Guide portion;

[0021] 4. The first sealing ring;

[0022] 5. Second sealing ring; 51. Guide surface. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-Figure 2 The present application is further described with reference to the following specific examples:

[0024] First of all, it should be noted that in the description of this application, if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and other directional words appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of this application; in addition, if the terms "first", "second", "third" and other numerical quantifiers appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", and "connected" appear, they should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an interference fit, a transition fit and other limited connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium; therefore, for ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0025] like Figures 1 to 2 As shown, a connector includes: a valve body 2 and a connecting ring body 3, the valve body 2 has a first channel 21 arranged along the length direction, and a mounting hole 22 perpendicular to the first channel 21, and both ends of the valve body 2 are provided with a first connecting portion 23 around the first channel 21; the connecting ring body 3 has a second connecting portion 31 detachably connected to the first connecting portion 23, the connecting ring body 3 has a second channel 33 connected to the first channel 21, and the connecting ring body 3 has a connecting groove 32 arranged around the second channel 33, the connecting groove 32 is used for inserting the pipeline 100, the connecting groove 32 has a first inner wall 321 and a second inner wall 322, and the first sealing ring 4 is embedded in the first inner wall 321 and / or the second inner wall 322.

[0026] In this application, the first connecting portions 23 at both ends of the valve body 2 can be detachably connected to the second connecting portion 31 of the connecting ring body 3. This detachable design facilitates assembly, maintenance, and replacement of the connector. The connecting ring body 3 can be provided with multiple different size structures to adapt to pipes 100 of different diameters. When the pipe 100 is inserted into the connecting groove 32, the sealing ring will tightly fit the outer wall of the pipe 100, playing a sealing role, preventing fluid leakage when flowing through this area, and ensuring the sealing and normal operation of the entire fluid delivery system. The mounting hole 22 is used to install a flow detection component.

[0027] Specifically, the first connecting part 23 includes an annular groove 231 provided on the valve body 2, the annular groove 231 is connected to the first channel 21, an internal thread 232 is provided on the inner wall of the annular groove 231, and an external thread 311 is provided on the second connecting part 31. The first connecting part 23 is threadedly connected to the second connecting part 31.

[0028] The first connecting part 23 and the second connecting part 31 are connected by threads. Through the cooperation between the internal thread 232 and the external thread 311, strong axial tension and circumferential friction can be generated after tightening, so that the valve body 2 and the connecting ring body 3 are tightly connected together. When the connecting parts are subjected to fluid pressure and possible external vibrations, impacts, etc., they can still maintain a stable connection state.

[0029] Specifically, a mounting groove is provided on the bottom wall of the annular groove 231 , and the second sealing ring 5 is installed in the mounting groove.

[0030] A mounting groove and second sealing ring 5 are provided on the bottom wall of annular groove 231, providing an additional sealing layer on top of the threaded connection between first connecting portion 23 and second connecting portion 31. When the two are screwed together, the second sealing ring 5 is squeezed between the mounting groove and the corresponding contact area of ​​the second connecting portion 31, effectively filling any slight gaps and further preventing fluid leakage from the threaded connection.

[0031] Specifically, when the first connection portion 23 is connected to the second connection portion 31 , the inner wall of the first channel 21 is in contact with the inner wall of the second channel 33 .

[0032] When the first connecting portion 23 is connected to the second connecting portion 31 , the inner wall of the first channel 21 is connected to the inner wall of the second channel 33 , thereby constructing a smooth and continuous internal channel between the valve body 2 and the connecting ring body 3 .

[0033] Specifically, the inner ring of the connecting ring body 3 is provided with a guide portion 34 , and the guide portion 34 is located at an end away from the valve body 2 .

[0034] The guide portion 34 can reduce the flow influence of the liquid / gas flow rate, thereby avoiding the formation of violent fluctuations in the liquid / gas flow entering the valve body 2 and affecting the detection results.

[0035] Specifically, a guide surface 51 is provided at an open end of the second sealing ring 5 facing the connecting groove 32 .

[0036] This design can facilitate the insertion of the pipe 100 .

[0037] It should be noted that the above embodiments are only used to illustrate the present application and are not intended to limit the technical solutions described in the present application. Although this specification has described the present application in detail with reference to the above embodiments, ordinary technicians in this field should understand that technicians in the relevant technical field can still modify or replace the present application with equivalents, and all technical solutions and improvements that do not depart from the spirit and scope of the present application should be included in the scope of the claims of the present application.

Claims

1. A connector, characterized in that: include: A valve body (2), the valve body (2) having a first channel (21) arranged along the length direction, and a mounting hole (22) perpendicular to the first channel (21), and first connecting portions (23) are arranged around the first channel (21) at both ends of the valve body (2); A connecting ring body (3), the connecting ring body (3) having a second connecting portion (31) detachably connected to the first connecting portion (23), the connecting ring body (3) having a second channel (33) communicating with the first channel (21), the connecting ring body (3) having a connecting groove (32) arranged around the second channel (33), the connecting groove (32) being used for inserting a pipe (100), the connecting groove (32) having a first inner wall (321) and a second inner wall (322), the first inner wall (321) and / or the second inner wall (322) being embedded with a first sealing ring (4).

2. The connector according to claim 1, wherein: The first connecting portion (23) comprises an annular groove (231) provided on the valve body (2), the annular groove (231) being in communication with the first channel (21), an inner wall of the annular groove (231) being provided with an internal thread (232), and the second connecting portion (31) being provided with an external thread (311), the first connecting portion (23) being threadedly connected to the second connecting portion (31).

3. The connector according to claim 2, wherein: The bottom wall of the annular groove (231) is provided with a mounting groove, and a second sealing ring (5) is installed in the mounting groove.

4. The connector according to claim 1, wherein: When the first connecting portion (23) is connected to the second connecting portion (31), the inner wall of the first channel (21) is connected to the inner wall of the second channel (33).

5. The connector according to claim 1, wherein: The inner ring of the connecting ring body (3) is provided with a guide portion (34), and the guide portion (34) is located at an end away from the valve body (2).

6. The connector according to claim 3, characterized in that A guide surface (51) is provided at an open end of the second sealing ring (5) facing the connecting groove (32).

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