Flow channel connecting structure and ultrasonic gas meter

Abstract

The utility model relates to the technical field of ultrasonic gas meters, in particular to a flow channel module connecting structure and an ultrasonic gas meter. The air outlet pipe comprises an air inlet end and an air outlet end, the flow channel module comprises a connecting end which is inserted in a sealed mode and communicates with the air inlet end of the air outlet pipe, and the connecting end is detachably connected with the air inlet end of the air outlet pipe; the connecting end of the flow channel module is directly inserted into the air inlet end of the air outlet pipe, and then the connecting end is connected with the air inlet end; compared with the prior art, the structure does not need other additional parts to complete installation of the flow channel module, the number of parts is reduced, the overall weight is reduced, and the ultrasonic gas meter is lighter and convenient to transport and install. Meanwhile, due to the simplified structure, the manufacturing cost is reduced, the production and assembly links of redundant parts are omitted, and the production efficiency is improved; and the plug-in connection does not depend on a specific watchcase structure, can be flexibly adapted to watchcases of different models or manufacturers, and is higher in universality.

Description

Technical Field

[0001] This utility model relates to the field of ultrasonic gas meter technology, and in particular to a flow channel connection structure and an ultrasonic gas meter. Background Technology

[0002] The working principle of an ultrasonic gas meter is to measure the gas flow rate by utilizing the influence of the propagation speed of ultrasonic waves on the gas flow speed. Ultrasonic gas meters are fully electronic gas meters without mechanical moving parts, and have advantages such as small size, light weight, low pressure loss, and convenient remote transmission of meter reading data.

[0003] For example, patent number CN201922090486.3 discloses a flow channel module support assembly and an ultrasonic gas meter, which includes a support base with a slot and a bracket. The slot is used for the ultrasonic gas meter flow channel module to be inserted, and the bracket is used for fixed connection with the ultrasonic gas meter housing. On the one hand, the above patent requires additional components to complete the installation of the flow channel module, which will increase the overall weight of the gas meter, increase the manufacturing cost, and make the assembly more complicated. On the other hand, the way the bracket is fixed to the housing has specific requirements on the housing structure, making it difficult to adapt to the design of different models of housings.

[0004] Based on this, the applicant is considering designing a lightweight, low-cost flow channel connection structure and an ultrasonic gas meter. Utility Model Content

[0005] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is: how to provide a lightweight, low-cost flow channel connection structure and an ultrasonic gas meter.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] The flow channel module connection structure includes a flow channel module and an air outlet pipe; the air outlet pipe includes an air inlet end and an air outlet end, the flow channel module includes a sealing insertion end that communicates with the air inlet end of the air outlet pipe, and the connecting end and the air inlet end of the air outlet pipe are detachably connected.

[0008] The flow channel connection structure and the working principle and advantages of the ultrasonic gas meter in this technical solution are as follows:

[0009] During installation, the connecting end of the flow channel module is directly and sealed into the inlet end of the gas outlet pipe, and then the connecting end is connected to the inlet end, thus achieving smooth flow of gas between the flow channel module and the gas outlet pipe. Compared with existing technologies, this structure does not require additional components to complete the installation of the flow channel module, reducing the number of parts and the overall weight, making the ultrasonic gas meter lighter and easier to transport and install. At the same time, the simplified structure reduces manufacturing costs, eliminates the production and assembly of unnecessary parts, and improves production efficiency; moreover, the plug-in connection does not rely on a specific housing structure and can flexibly adapt to housings of different models or manufacturers, making it more versatile.

[0010] Furthermore, the connection end of the flow channel module is an outwardly protruding insert, and an insert block is provided on the outer side wall of the insert. The air inlet end of the air outlet pipe has an insertion port corresponding to the insert block. The insert block is detachably connected to the air inlet end of the air outlet pipe.

[0011] Furthermore, the air inlet end of the air outlet pipe includes a transverse section for the flow channel module connection end to be inserted. The transverse section includes an extension plate, and the extension plate includes a protruding end extending away from the side wall of the air outlet pipe. When the insert block is inserted into the socket, the insert block overlaps with the protruding end. The protruding end of the extension plate and the insert block are respectively provided with corresponding first screw holes and second screw holes, and the connecting screw is threadedly connected to the first screw hole and the second screw hole.

[0012] Furthermore, the air outlet pipe is L-shaped and also includes a vertical section connected to the horizontal section, with the air outlet located on the upper section of the vertical section; a reinforcing rib is provided on the top side of the horizontal section along its length, and the end of the reinforcing rib away from the air inlet extends to be fixedly connected to the vertical section.

[0013] Furthermore, the insert blocks are arranged in pairs along the length of the flow channel module, and the protruding ends are arranged in pairs along the width of the air outlet pipe.

[0014] Furthermore, the socket is located above the extension plate.

[0015] Furthermore, an annular groove is provided on the outer wall of the connecting end of the flow channel module. The annular groove is located at the part inserted into the air inlet end of the air outlet pipe, and a sealing ring is sleeved inside the annular groove.

[0016] Furthermore, the socket is provided with a guide slope.

[0017] An ultrasonic gas meter, which includes the aforementioned flow channel module connection structure.

[0018] Furthermore, the watch includes a watch case, the watch case including a vent connector, and the vent end of the vent pipe is detachably connected to the vent connector. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the flow channel module connection structure according to an embodiment of the present utility model;

[0020] Figure 2 This is an exploded three-dimensional structural diagram of the flow channel module connection structure according to an embodiment of the present utility model;

[0021] Figure 3 This is a front view schematic diagram of the air outlet pipe according to an embodiment of the present utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the flow channel module according to an embodiment of the present utility model;

[0023] Figure 5 This is a front view structural diagram of the flow channel module according to an embodiment of the present utility model;

[0024] Figure 6 This is a three-dimensional structural diagram of the ultrasonic gas meter according to an embodiment of the present invention;

[0025] Figure 7 This is a cross-sectional structural diagram of the ultrasonic gas meter according to an embodiment of the present invention;

[0026] In the above attached figures:

[0027] 100. Watch case; 110. Gas vent connector;

[0028] 200, Exhaust pipe; 210, Inlet end; 211, Reinforcing rib; 220, Exhaust end; 221, Insert; 2211, Guide slope; 230, Extension plate; 231, Protruding end; 2311, First screw hole;

[0029] 300, Flow channel module; 310, Connecting end; 311, Annular groove; 320, Insert block; 321, Second screw hole;

[0030] 400. Connecting screws. Detailed Implementation

[0031] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0032] Refer to together Figures 1 to 5 This embodiment provides a flow channel module connection structure, which includes a flow channel module 300 and an air outlet pipe 200; the air outlet pipe 200 includes an air inlet end 210 and an air outlet end 220, and the flow channel module 300 includes a sealing insertion end 310 that communicates with the air inlet end 210 of the air outlet pipe 200. The connecting end 310 and the air inlet end 210 of the air outlet pipe 200 are detachably connected.

[0033] In this embodiment, during installation, the connecting end 310 of the flow channel module 300 is directly and sealed into the inlet end 210 of the gas outlet pipe 200, and then the connecting end 310 is connected to the inlet end 210, thereby realizing the smooth flow of gas between the flow channel module 300 and the gas outlet pipe 200. Compared with the prior art, this structure does not require additional components to complete the installation of the flow channel module 300, reducing the number of parts and the overall weight, making the ultrasonic gas meter lighter and easier to transport and install. At the same time, the simplified structure reduces manufacturing costs, eliminates the production and assembly of unnecessary parts, and improves production efficiency; and the plug-in connection does not depend on a specific housing 100 structure, and can flexibly adapt to housings 100 of different models or manufacturers, making it more versatile.

[0034] Preferably, such as Figures 1 to 5 As shown, the connection end 310 of the flow channel module 300 is an outwardly protruding insert. An insert block 320 is provided on the outer wall of the insert. The air inlet end 210 of the air outlet pipe 200 has an insertion port 221 corresponding to the insert block 320. The insert block 320 and the air inlet end 210 of the air outlet pipe 200 are detachably connected. The cooperation between the insert block 320 and the insertion port 221 can enhance the stability of the connection between the flow channel module 300 and the air outlet pipe 200, and can realize the insertion positioning of the installation.

[0035] Preferably, such as Figures 1 to 5As shown, the air inlet end 210 of the air outlet pipe 200 includes a transverse section into which the connection end 310 of the flow channel module 300 is inserted. The transverse section includes an extension plate 230, which includes a protruding end 231 extending away from the side wall of the air outlet pipe 200. When the insert block 320 is inserted into the socket 221, the insert block 320 overlaps with the protruding end 231. The protruding end 231 of the extension plate 230 and the insert block 320 are respectively provided with corresponding first screw holes 2311 and second screw holes 321. The connecting screw 400 is threadedly connected to the first screw holes 2311 and the second screw holes 321. When the insert block 320 of the flow channel module 300 is inserted into the socket 221 of the air outlet pipe 200, the insert block 320 and the protruding end 231 of the extension plate 230 form an overlapping area. The protruding end 231 has a first screw hole 2311, and the insert block 320 has a second screw hole 321. A connecting screw 400 is used to pass through both screw holes for threaded locking, so as to achieve a stable connection between the flow channel module 300 and the air outlet pipe 200. This solution combines plug-in positioning with screw fastening to form mechanical limit and threaded locking. The cooperation between the insert block 320 and the socket 221 can constrain the radial and circumferential displacement of the flow channel module 300. After connecting the protruding end 231 and the insert block 320 with the connecting screw 400, it can further resist axial tension or vibration caused during use and avoid loosening of the connection. When disassembling, only the connecting screw 400 needs to be rotated to separate the flow channel module 300 and the air outlet pipe 200 without damaging the overall structure, which is convenient for maintenance and replacement.

[0036] Preferably, such as Figures 1 to 5 As shown, insert blocks 320 are arranged in pairs along the length of the flow channel module 300, and protruding ends 231 are arranged in pairs along the width of the gas outlet pipe 200. By setting multiple insert blocks 320 to cooperate with the socket 221, and by overlapping multiple protruding ends 231 with the insert blocks 320 and tightening the connecting screws 400, the stress at the connection can be evenly distributed, effectively preventing the connection from loosening or being damaged due to uneven stress at a single point. Moreover, the multi-point connection enhances the rigidity of the overall structure, ensuring the safety and accuracy of gas transmission.

[0037] Preferably, such as Figures 1 to 5As shown, the gas outlet pipe 200 is L-shaped, and it also includes a vertical section connected to the horizontal section. The gas outlet end 220 is located at the upper end of the vertical section. A reinforcing rib 211 is provided on the top side of the horizontal section along its length. The end of the reinforcing rib 211 away from the gas inlet end 210 extends to be fixedly connected to the vertical section. This allows the flow channel module 300 and the gas outlet pipe 200 inside the ultrasonic gas meter to form an L-shaped layout, which conforms to the layout of most ultrasonic gas meters on the market. The reinforcing rib 211 extends axially from the top side of the horizontal section to the vertical section, forming a continuous support frame. This can enhance the overall structural strength of the gas outlet pipe 200, effectively disperse the stress concentration at the L-shaped bend, and absorb vibration, prevent deformation, and improve the stability of the connection between the gas outlet pipe 200 and the flow channel module 300, reducing the risk of the connecting screw 400 at the connection point coming loose. Specifically, the reinforcing rib 211 can be integrally formed with the gas outlet pipe 200 by casting or injection molding, without additional processing steps, thus reducing production costs.

[0038] Preferably, such as Figures 1 to 5 As shown, the insertion port 221 is located above the extension plate 230; when the insertion block 320 of the flow channel module 300 is inserted into the insertion port 221 from above, the protruding end 231 of the extension plate 230 is located below the insertion block 320, providing support for the insertion block 320 and the bottom side of the flow channel module 300; specifically, as Figure 3 As shown, the extension plate 230 extends from the side opposite to the air inlet end 210 port of the air outlet pipe 200 to protrude from the air inlet end 210 port, so that the extension plate 230 can provide support for the bottom side of the flow channel module 300, increase the contact area between the flow channel module 300 and the air outlet pipe 200, and make the installed flow channel module 300 more stable.

[0039] Preferably, such as Figures 1 to 5 As shown, an annular groove 311 is provided on the outer wall of the connecting end 310 of the flow channel module 300. The annular groove 311 is located at the part of the inlet end 210 of the gas outlet pipe 200, and a sealing ring (not shown in the figure) is fitted inside the annular groove 311. The sealing ring (such as a rubber ring) fitted inside the annular groove 311 is deformed by radial compression of the inner wall of the gas outlet pipe 200 to form an annular sealing interface, which improves the tightness and sealing between the flow channel module 300 and the gas outlet pipe 200. The elastic buffer of the sealing ring can absorb the micro-vibration caused by the gas flow, reduce the friction loss between the flow channel module 300 and the gas outlet pipe 200, and extend the service life of the flow channel module 300 and the gas outlet pipe 200.

[0040] Preferably, such as Figures 1 to 5As shown, a guide slope 2211 is provided on the socket 221; when the plug 320 is inserted into the socket 221, the guide slope 2211 can guide the plug 320 to enter smoothly, reducing installation difficulties caused by inaccurate alignment, and also helps to protect the plug 320 and the socket 221, avoiding damage caused by forced insertion, reducing installation difficulty, improving assembly efficiency, and further enhancing the reliability and durability of the connection structure.

[0041] Specifically, when assembling the flow channel module connection structure, first align the flow channel module 300 with the air outlet pipe 200, then directly insert the connecting end 310 of the flow channel module 300 into the air inlet end 210 of the air outlet pipe 200, then align the connecting screw 400 with the first screw hole 2311 and the second screw hole 321, and make a threaded connection to complete the assembly of the flow channel module connection structure. During the assembly process, there is no need to frequently adjust the position and direction of the flow channel module 300 and the air outlet pipe 200, which is convenient for manual or automatic assembly and can improve the assembly efficiency of the flow channel module connection structure.

[0042] Refer to together Figures 1 to 7 The ultrasonic gas meter includes the aforementioned flow channel module connection structure. The ultrasonic gas meter with this flow channel module connection structure eliminates the need for additional components to install the flow channel module 300, reducing the number of parts and overall weight, making the ultrasonic gas meter lighter and easier to transport and install. Simultaneously, the simplified structure reduces manufacturing costs, eliminates the production and assembly of unnecessary parts, and improves production efficiency. Furthermore, the plug-in connection does not rely on a specific housing 100 structure, allowing for flexible adaptation to different models or manufacturers of housing 100, thus enhancing its versatility.

[0043] Preferably, such as Figure 6 and Figure 7 As shown, the meter includes a housing 100, which includes a gas outlet connector 110. The gas outlet pipe 200 with a gas outlet end 220 is detachably connected to the gas outlet connector 110. The detachable connection between the gas outlet pipe 200 and the housing 100 facilitates the replacement or repair of components when needed, thus improving the maintainability and flexibility of the gas meter.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A flow channel module connection structure, characterized in that, It includes a flow channel module and an air outlet pipe; the air outlet pipe includes an air inlet end and an air outlet end, the flow channel module includes a sealing insertion and a connecting end communicating with the air inlet end of the air outlet pipe, and the connecting end and the air inlet end of the air outlet pipe are detachably connected.

2. The flow channel module connection structure as described in claim 1, characterized in that, The connection end of the flow channel module is an outwardly protruding insert. The outer wall of the insert has a protruding insert block. The air inlet end of the air outlet pipe has an opening corresponding to the insert block. The insert block is detachably connected to the air inlet end of the air outlet pipe.

3. The flow channel module connection structure as described in claim 2, characterized in that, The air outlet pipe inlet includes a transverse section for the flow channel module connection end to be inserted. The transverse section includes an extension plate, which includes a protruding end extending away from the side wall of the air outlet pipe. When the insert block is inserted into the socket, the insert block overlaps with the protruding end. The protruding end of the extension plate and the insert block are respectively provided with corresponding first screw holes and second screw holes, and the connecting screw is threadedly connected to the first screw hole and the second screw hole.

4. The flow channel module connection structure as described in claim 3, characterized in that, The air outlet pipe is L-shaped and also includes a vertical section connected to the horizontal section. The air outlet end is located at the upper end of the vertical section. A reinforcing rib is provided on the top side of the horizontal section along its length direction. The end of the reinforcing rib away from the air inlet end extends to be fixedly connected to the vertical section.

5. The flow channel module connection structure as described in claim 3, characterized in that, The insertion blocks are arranged in pairs along the length of the flow channel module, and the protruding ends are arranged in pairs along the width of the air outlet pipe.

6. The flow channel module connection structure as described in claim 5, characterized in that, The socket is located above the extension plate.

7. The flow channel module connection structure as described in claim 1, characterized in that, The outer wall of the connecting end of the flow channel module is provided with an annular groove, which is located at the part inserted into the air inlet end of the air outlet pipe, and a sealing ring is sleeved inside the annular groove.

8. The flow channel module connection structure as described in claim 2, characterized in that, The socket is provided with a guide slope.

9. An ultrasonic gas meter, characterized in that, Includes the flow channel module connection structure as described in any one of claims 1 to 8.

10. The ultrasonic gas meter as described in claim 9, characterized in that, The watch includes a watch case, the watch case includes a vent connector, and the vent end of the vent pipe is detachably connected to the vent connector.

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