Ultrasonic gas meter plastic pipe section structure

Abstract

The utility model relates to a plastic pipe section structure of an ultrasonic gas meter, and belongs to the technical field of ultrasonic flow measurement. According to the technical scheme, an annular buckle cover is buckled on a first ultrasonic transducer (2) and a second ultrasonic transducer (5), a clamping ring pressing face (G) is pressed on the top faces (H) of the first ultrasonic transducer and the second ultrasonic transducer, a clamping hook on the outer edge (11) of a port of an installation base is matched with a clamping groove hole in the side wall of the annular buckle cover, the first ultrasonic transducer and the second ultrasonic transducer are pressed, and the first ultrasonic transducer and the second ultrasonic transducer are fixed. And meanwhile, the transducer sealing protrusion (F) is flattened, the annular transducer sealing protrusion (F) is in close contact with the first annular pipeline sealing face (E), and the second pipeline sealing face (Q) and the transducer sealing face (P) are in contact and extruded to form a pressing structure. The utility model has the beneficial effects that the ultrasonic transducer I and the ultrasonic transducer II are clamped, crimped and sealed through the transducer clamping ring I and the transducer clamping ring II, so that the sealing performance of a flow channel is ensured, and the measurement precision and the assembly efficiency are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to an ultrasonic gas meter plastic pipe section structure for measuring fluid flow rate and controlling flowing medium, especially the measurement of gas, and belongs to the technical field of ultrasonic flow measurement. BACKGROUND

[0002] An ultrasonic gas meter is a new type of gas meter different from traditional mechanical diaphragm flow meters and electronic diaphragm flow meters. Its working principle is to measure the gas flow rate by using the time difference method, that is, to reflect the flow rate of fluid by measuring the difference between the speeds of ultrasonic signals propagating in the fluid in the forward and reverse directions. Since the error caused by the time difference method with the change of fluid temperature is relatively small, the flow accuracy is relatively high, so the ultrasonic time difference method for measuring fluid is widely used. The ultrasonic transducer of the prior art ultrasonic gas meter is installed on the mounting seat of the measuring pipeline body through a gland or a bolt, and the ultrasonic transducer and the measuring pipeline body form a sealed structure. For example, Chinese patents ZL2020231679715 entitled "A detachable transducer suitable for a pipeline sonar" and ZL2022209750944 entitled "A measuring flow channel and a gas meter" and the like. The existing problems of the prior art are: the assembly efficiency of the gas meter is low, and the bolt for installing the ultrasonic transducer may be loose. In addition, the integrated circuit board and the measuring pipeline body of the prior art are arranged separately, which increases the size of the instrument and increases the difficulty of assembly and installation. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at providing an ultrasonic gas meter plastic pipe section structure, the ultrasonic transducer is installed on the mounting seat of the measuring pipeline body through a snap ring and a snap hook, and forms a sealed structure with the measuring pipeline body, which improves the gas sealing performance, improves the measurement accuracy and assembly efficiency; the measuring pipeline body of the gas meter is symmetrically provided with integrated circuit board mounting positions on both sides, and an integrated structure is adopted, which greatly simplifies the installation method, improves the assembly efficiency, and solves the problems in the background art.

[0004] The technical scheme of the utility model is:

[0005] The utility model provides an ultrasonic gas meter plastic pipe section structure, containing measurement pipeline body, ultrasonic transducer one and ultrasonic transducer two, ultrasonic transducer one and ultrasonic transducer two are arranged in pairs on the respective mounting seat of measurement pipeline body, its special aspect lies in: the mounting seat port of measurement pipeline body is annular pipe sealing surface one, and ultrasonic transducer one and ultrasonic transducer two are provided with annular transducer sealing convexity in the corresponding position, and the transducer sealing convexity is rubber material, and is matched with pipe sealing surface one, the inner chamber of mounting seat is circular pipe sealing surface two, and ultrasonic transducer one and ultrasonic transducer two are provided with transducer sealing surface in the corresponding position, and the transducer sealing surface is rubber material, and is matched with pipe sealing surface two, the mounting seat port is provided with mounting seat port outer edge, and at least two protruding hooks are arranged on the mounting seat port outer edge, ultrasonic transducer one and ultrasonic transducer two are installed on the respective mounting seat of measurement pipeline body through transducer snap ring one and transducer snap ring two respectively, the transducer snap ring one and transducer snap ring two are the same structure annular buckle cover, and the inner ring between the top of annular buckle cover and outer ring is buckle compression surface, and the bottom of sidewall is bent inwards, and the buckle compression surface and the sidewall bent inwards together constitute annular buckle cover sliding groove, at least two card slot holes are arranged on the sidewall of annular buckle cover, and the card slot hole is matched with the hook on the mounting seat port outer edge, the annular buckle cover is buckled on ultrasonic transducer one and ultrasonic transducer two, the buckle compression surface is pressed on the top surface of ultrasonic transducer one and ultrasonic transducer two, the hook on the mounting seat port outer edge is matched with the card slot hole on the sidewall of annular buckle cover, and ultrasonic transducer one and ultrasonic transducer two are compressed, and the transducer sealing convexity is flattened, the annular transducer sealing convexity is in close contact with annular pipe sealing surface one, and pipe sealing surface two and transducer sealing surface contact extrusion form compression structure, guarantee sealing performance.

[0006] The bending of the bottom of annular buckle cover sliding groove is matched with the mounting seat port outer edge, guaranteeing that the annular buckle cover sliding groove is slid into the mounting seat port outer edge.

[0007] The buckle compression surface between the inner ring and the outer ring of the top of annular buckle cover is a complete annular, and is completely pressed with the annular top surface of ultrasonic transducer one and ultrasonic transducer two, the sidewall of annular buckle cover is a complete annular, and the annular buckle cover sliding groove formed is a complete annular, and the annular buckle cover sliding groove surrounds the mounting seat port outer edge, the above-mentioned structure is suitable for the mounting seat port surrounding having larger installation space, for example, the mounting seat is vertically arranged on the measurement pipeline body.

[0008] The snap ring pressing surface between the inner ring and the outer ring of the top of the annular buckle cover is a semi-ring shape exceeding a semicircle, and is completely pressed against the annular top surface of the ultrasonic transducer one and the ultrasonic transducer two.

[0009] The snap ring pressing surface between the inner ring and the outer ring of the top of the annular buckle cover is a semi-ring shape exceeding a semicircle, and is completely pressed against the annular top surface of the ultrasonic transducer one and the ultrasonic transducer two.

[0010] The installation seat is arranged obliquely on the measuring pipeline body, and the ultrasonic transducer one and the ultrasonic transducer two form a V-shaped reflection structure in the measuring pipeline body.

[0011] Two protruding hooks, namely a hook one and a hook two, are arranged on the outer edge of the installation seat port, and two snap slot holes, namely a snap slot hole one and a snap slot hole two, are arranged on the side wall of the annular buckle cover, the hook one is matched with the snap slot hole one, and the hook two is matched with the snap slot hole two.

[0012] Two integrated circuit installation grooves, namely an integrated circuit installation groove one and an integrated circuit installation groove two, are symmetrically arranged on the two sides of the measuring pipeline body, the integrated circuit installation groove one and the integrated circuit installation groove two are in an integrated structure, and a closed environment is formed around the integrated circuit installation groove one and the integrated circuit installation groove two, and the integrated circuit board is assembled in a glue pouring sealing mode.

[0013] The utility model has the advantages that the ultrasonic transducer one and the ultrasonic transducer two are clamped and pressed and sealed through the transducer snap ring one and the transducer snap ring two, the sealing performance of the flow channel is ensured, the measurement precision and the assembly efficiency are improved, integrated circuit board mounting positions are symmetrically arranged on the two sides of the measuring pipeline body of the gas meter, an integrated structure is adopted, the installation mode is greatly simplified, and the assembly efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the top view of the measuring pipeline of the utility model;

[0015] Figure 2 It is the assembly sectional view of the first embodiment of the utility model;

[0016] Figure 3 It is the perspective view of the first embodiment of the utility model;

[0017] Figure 4 is the schematic view of the integrated circuit mounting groove two of the embodiment one of the utility model;

[0018] Figure 5 is the schematic view of the annular buckle cover of the embodiment one of the utility model;

[0019] Figure 6 is the enlarged sectional view of the I part sealing structure of the embodiment one of the utility model;

[0020] Figure 7 is the perspective view of the embodiment two of the utility model;

[0021] In the drawing: measurement pipeline body 1, ultrasonic transducer one 2, transducer snap ring one 3, transducer snap ring two 4, ultrasonic transducer two 5, integrated circuit board 6, integrated circuit mounting groove one 7, integrated circuit mounting groove two 8, annular buckle cover sliding slot 9, bend 10, mounting seat port outer edge 11, pipeline sealing surface one E, transducer sealing protrusion F, catch one A, catch two B, clamping groove hole one A1, clamping groove hole two B1, snap ring compression surface G, top surface H, gas flow direction Z, pipeline sealing surface two Q, transducer sealing surface P. DETAILED DESCRIPTION

[0022] The utility model is further explained by embodiment in combination with the drawings.

[0023] An ultrasonic gas meter plastic pipe section structure includes a measuring pipe body 1, an ultrasonic transducer 1 2, and an ultrasonic transducer 2 5, which are arranged in pairs on their respective mounting seats on the measuring pipe body 1. The key feature is that the mounting seat port of the measuring pipe body 1 is an annular pipe sealing surface 1E, and the ultrasonic transducers 1 2 and 2 5 have corresponding annular transducer sealing protrusions F, which are made of rubber and match the pipe sealing surface 1E. The inner cavity of the mounting seat of the measuring pipe body 1 is a circular pipe sealing surface 2Q, and the ultrasonic transducers 1 2 and 2 5 have corresponding transducer sealing surfaces P, which are also made of rubber and match the pipe sealing surface 2Q. The mounting seat port has an outer edge 11, on which at least two protruding hooks are provided. The ultrasonic transducers 1 2 and 2 5 are respectively connected by transducer retaining rings 1 3 and 2 4. Installed on their respective mounting bases on the measuring pipe body 1, the transducer retaining ring 1 3 and the transducer retaining ring 2 4 are identical annular covers. The inner and outer rings at the top of the annular cover form a retaining ring clamping surface G. The bottom of the side wall of the annular cover bends inward 10. The retaining ring clamping surface G and the inwardly bent side wall together form an annular cover groove 9. The side wall of the annular cover has at least two retaining holes, which match the hooks on the outer edge 11 of the mounting base port. The annular cover is fastened onto the ultrasonic transducer... On ultrasonic transducer 12 and ultrasonic transducer 25, the retaining ring pressing surface G presses against the top surface H of ultrasonic transducer 12 and ultrasonic transducer 25. The hook on the outer edge 11 of the mounting base port matches the retaining groove hole on the side wall of the annular buckle cover, pressing ultrasonic transducer 12 and ultrasonic transducer 25 tightly. At the same time, the transducer sealing protrusion F is flattened. The annular transducer sealing protrusion F is in close contact with the annular pipe sealing surface 1E. The pipe sealing surface 2Q and the transducer sealing surface P contact and squeeze to form a pressing structure to ensure sealing performance.

[0024] The bend 10 at the bottom of the annular cover slide groove 9 matches the outer edge 11 of the mounting base port, ensuring that the annular cover slide groove 9 slides into the outer edge 11 of the mounting base port.

[0025] The retaining ring G between the inner and outer rings at the top of the annular cover is a complete ring, fully pressing against the annular top surfaces of ultrasonic transducers 2 and 5; the sidewalls of the annular cover are also complete rings, forming a complete annular groove 9 that surrounds the outer edge 11 of the mounting base port. This structure is suitable for installations with ample space around the mounting base port, for example, where the mounting base is vertically mounted on the measuring pipe body 1.

[0026] Example 1, refer to Appendix Figure 1 , 2, 3, 4, 5, 6. The annular buckle cover is an open U-shaped buckle cover more than half a circle, the clasp ring pressing surface G between the inner ring and the outer ring of the top of the annular buckle cover is a half ring more than half a circle, the side wall of the annular buckle cover is a half ring more than half a circle, and the annular buckle cover sliding groove 9 is a half ring more than half a circle. The annular buckle cover is pushed into the sliding installation from one side of the outer edge 11 of the installation seat port by using the half ring opening of the sliding channel, and the clamping groove hole on the side wall of the annular buckle cover matches the clamping hook on the outer edge 11 of the installation seat port during the sliding process, and then the installation is completed. The above structure is suitable for the installation seat port with a smaller installation space, for example, the installation seat is arranged obliquely on the measuring pipeline body 1.

[0027] Embodiment two, refer to the attached Figure 1 , 7 . The clasp ring pressing surface G between the inner ring and the outer ring of the top of the annular buckle cover is a complete ring, and is completely pressed with the annular top surface of the ultrasonic transducer one 2 and the ultrasonic transducer two 5. The side wall of the annular buckle cover is a half ring more than half a circle, and the annular buckle cover sliding groove 9 is a half ring more than half a circle. The annular buckle cover is pushed into the sliding installation from one side of the outer edge 11 of the installation seat port by using the half ring opening of the sliding channel, and the clamping groove hole on the side wall of the annular buckle cover matches the clamping hook on the outer edge 11 of the installation seat port during the sliding process, and then the installation is completed. The above structure is suitable for the installation seat port with a smaller installation space, for example, the installation seat is arranged obliquely on the measuring pipeline body 1.

[0028] The ultrasonic transducer one 2 and the ultrasonic transducer two 5 are arranged in pairs on the respective installation seats of the measuring pipeline body 1, and the installation seats are arranged obliquely on the measuring pipeline body 1. The ultrasonic transducer one 2 and the ultrasonic transducer two 5 form a V-shaped reflection structure in the measuring pipeline body 1.

[0029] Two protruding clamping hooks, namely clamping hook one A and clamping hook two B, are arranged on the outer edge 11 of the installation seat port. Two clamping groove holes, namely clamping groove hole one A1 and clamping groove hole two B1, are arranged on the side wall of the annular buckle cover. The clamping hook one A matches the clamping groove hole one A1, and the clamping hook two B matches the clamping groove hole two B1.

[0030] The measuring pipeline body 1 is symmetrically provided with an integrated circuit installation slot one 7 and an integrated circuit installation slot two 8 for installing the integrated circuit board 6 on both sides. This structure is a one-piece structure, and the integrated circuit installation slot one 7 and the integrated circuit installation slot two 8 form a closed environment around them. The integrated circuit board 6 is assembled by the glue sealing method.

[0031] The method for assembling the plastic pipe section structure of the ultrasonic gas meter comprises the following steps: installing the ultrasonic transducer one 2 and the ultrasonic transducer two 5 on the respective mounting seats of the measuring pipe body 1 and forming a V-shaped reflection structure in the measuring pipe body 1; buckling the transducer snap ring one 3 and the transducer snap ring two 4 on the ultrasonic transducer one 2 and the ultrasonic transducer two 5 respectively, pressing the snap ring compression surface G on the top surface H of the ultrasonic transducer one 2 and the ultrasonic transducer two 5, matching the clamping hook on the outer edge 11 of the mounting seat port with the clamping slot hole on the side wall of the annular buckle cover, compressing the ultrasonic transducer one 2 and the ultrasonic transducer two 5, and flattening the annular transducer sealing protrusion F at the same time, so that the transducer sealing protrusion F is in close contact with the annular pipe sealing surface one E, the pipe sealing surface two Q and the transducer sealing surface P are in contact and extruded to form a compression structure, and the sealing performance is ensured.

[0032] The transducer sealing protrusion F has a certain compression amount, which ensures the sealing performance.

Claims

1. An ultrasonic gas meter plastic pipe section structure, comprising a measuring pipe body (1), an ultrasonic transducer one (2) and an ultrasonic transducer two (5), the ultrasonic transducer one (2) and the ultrasonic transducer two (5) are arranged in pairs on respective mounting seats of the measuring pipe body (1); characterized in that: The mounting seat port of the measuring pipe body (1) is an annular pipe sealing surface one (E), the ultrasonic transducer one (2) and the ultrasonic transducer two (5) are provided with annular transducer sealing protrusions (F) at corresponding positions, the transducer sealing protrusions (F) are rubber materials, matched with the pipe sealing surface one (E), the mounting seat inner cavity of the measuring pipe body (1) is a circular pipe sealing surface two (Q), the ultrasonic transducer one (2) and the ultrasonic transducer two (5) are provided with transducer sealing surfaces (P) at corresponding positions, the transducer sealing surfaces (P) are rubber materials, matched with the pipe sealing surface two (Q), the mounting seat port is provided with a mounting seat port outer edge (11), at least two protruding hooks are arranged on the mounting seat port outer edge (11); the ultrasonic transducer one (2) and the ultrasonic transducer two (5) are respectively installed on the respective mounting seats of the measuring pipe body (1) through the transducer snap ring one (3) and the transducer snap ring two (4), the transducer snap ring one (3) and the transducer snap ring two (4) are annular buckles with the same structure, the inner ring and the outer ring of the top of the annular buckle are between the buckle compression surfaces (G), the bottom of the sidewall of the annular buckle is inwardly bent (10), the buckle compression surface (G) and the inwardly bent sidewall of the bottom together form an annular buckle sliding groove (9), at least two clamping groove holes are arranged on the sidewall of the annular buckle, and the clamping groove holes are matched with the hooks on the mounting seat port outer edge (11); the annular buckle is buckled on the ultrasonic transducer one (2) and the ultrasonic transducer two (5), the buckle compression surface (G) is pressed on the top surface (H) of the ultrasonic transducer one (2) and the ultrasonic transducer two (5), the hooks on the mounting seat port outer edge (11) are matched with the clamping groove holes on the sidewall of the annular buckle, the ultrasonic transducer one (2) and the ultrasonic transducer two (5) are compressed, at the same time, the transducer sealing protrusions (F) are compressed, the annular transducer sealing protrusions (F) are in close contact with the annular pipe sealing surface one (E), and the pipe sealing surface two (Q) and the transducer sealing surface (P) are contacted and extruded to form a compression structure.

2. An ultrasonic gas meter plastic pipe section structure according to claim 1, characterized in that: The bend (10) at the bottom of the annular buckle sliding groove (9) is matched with the mounting seat port outer edge (11).

3. An ultrasonic gas meter plastic pipe section structure according to claim 2, characterized in that: The buckle compression surface (G) between the inner ring and the outer ring of the top of the annular buckle is a complete annulus, and is completely pressed with the annular top surface of the ultrasonic transducer one (2) and the ultrasonic transducer two (5); the sidewall of the annular buckle is a complete annulus, the annular buckle sliding groove (9) formed thereby is a complete annulus, and the annular buckle sliding groove (9) surrounds the mounting seat port outer edge (11).

4. The ultrasonic gas meter plastic pipe section structure according to claim 2, characterized in that: The buckle compression surface (G) between the inner ring and the outer ring of the top of the annular buckle is a complete annulus, and is completely pressed with the annular top surface of the ultrasonic transducer one (2) and the ultrasonic transducer two (5); the sidewall of the annular buckle is a half annulus more than a semicircle, and the annular buckle sliding groove (9) formed thereby is a half annulus more than a semicircle.

5. The ultrasonic gas meter plastic pipe section structure according to claim 2, characterized in that: The snap ring pressing surface (G) between the inner ring and the outer ring of the top of the annular buckle is a semi-annular shape exceeding half a circle, which is completely pressed with the annular top surface of the ultrasonic transducer one (2) and the ultrasonic transducer two (5); the side wall of the annular buckle is a semi-annular shape exceeding half a circle, and the annular buckle sliding groove (9) formed thereby is a semi-annular shape exceeding half a circle.

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