Ultrasonic water meter transducer mounting structure

Abstract

The invention relates to the technical field of ultrasonic water meter transducer installation, in particular to an ultrasonic water meter transducer installation structure which comprises a transducer, a water meter shell and a fixing cylinder. The clamping hooks and the calipers which play a role in correcting the position of the transducer placed in the center of the interior of the rotary drum, and the upper clamping ring and the lower clamping ring which are distributed in a circumferential array mode are connected in a clamped mode, so that the end position of the transducer can be accurately positioned and fixed; the head end part, the tail end part and the middle part of the whole transducer are subjected to three-stage positioning correction, so that the effect of higher mounting precision of the transducer in the fixed cylinder is achieved, the purpose of more accurate and scientific measurement data of an ultrasonic water meter is indirectly achieved, and the problem that most ultrasonic water meter transducers in the current market generally lack an accurate positioning assembly for mounting is solved.

Description

Technical Field

[0001] The invention relates to the technical field of ultrasonic water meter assembly, in particular to an ultrasonic water meter transducer installation structure. Background Art

[0002] The structure of ultrasonic water meter mainly includes ultrasonic transducer, data processing unit, display unit and shell. Among them, ultrasonic transducer is the core component of ultrasonic water meter, including ultrasonic probe and signal processing unit. It is responsible for emitting ultrasonic signal and receiving reflected signal. When ultrasonic wave propagates in water, its speed will be affected by water flow speed. Specifically, when ultrasonic sound beam propagates downstream and upstream in water, obvious time difference will be generated due to the carrying effect of water flow on sound wave. This tiny time difference can be accurately calculated by precise sensor and processed by advanced algorithm analysis to calculate water flow rate and further convert it into water flow. At present, most of ultrasonic water meters on the market use one or two pairs of ultrasonic transducers on both sides of the outer shell in a symmetrical or certain degree of position offset manner to transmit and receive signals to each other to complete water flow measurement.

[0003] However, the installation method of the transducer inside the existing ultrasonic water meter generally has the problem of low installation accuracy. The ultrasonic water meters currently on the market usually have transducer fixing cylinders reserved on both sides of the water meter shell. The fixing cylinders protrude from the surface of the water meter shell, and the end close to the water meter is usually half buried inside the water meter shell. The fixing cylinder is usually out of contact with the water meter display panel, and data communication between the transducer and the dial is only carried out through the line. Regardless of the assembly stage of the ultrasonic water meter before leaving the factory or the later maintenance and replacement of the transducer, the operator usually places the transducer directly in the fixing cylinder, and then fixes the transducer to the fixing cylinder with bolts. This rough fixing method may cause deviations in the transmission angle of the ultrasonic signal due to the lack of a positioning device. As a precision measuring instrument, if there is a problem with the spatial position relationship of the transducers on both sides of the water meter, it will directly affect the offset value of the ultrasonic wave in the water pipe water flow, thereby causing the problem of low accuracy in the water meter flow calculation. Based on this, an ultrasonic water meter transducer installation structure is proposed. Summary of the invention

[0004] The object of the present invention is to provide an ultrasonic water meter transducer installation structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an ultrasonic water meter transducer installation structure, comprising a transducer, a water meter housing and a fixed cylinder, the inner side of the fixed cylinder is rotatably connected to a rotating cylinder, the transducer is located inside the rotating cylinder, the end of the rotating cylinder close to the water meter housing is rotatably connected to a plurality of connecting plates, the plurality of connecting plates are distributed in a circular array, one end of the plurality of connecting plates is fixedly connected to a stopper, the plurality of stoppers are used to position the transducer from the outside of the transducer, a connecting plate limiting mechanism is provided on the side of the fixed cylinder close to the stopper, a rotating cylinder driving mechanism is provided between the transducer and the rotating cylinder, a transducer fixing mechanism is provided on the other side of the fixed cylinder, and a fixed cylinder installation mechanism is provided on the water meter housing.

[0006] As a further solution of the present invention, the connecting plate limiting mechanism includes a plurality of slots opened on the side of the fixed cylinder close to the stop block, and a plurality of connecting plates are fixedly connected to a clamping rod on the lower side of one end close to the clamping slot, and the plurality of clamping rods are respectively paired with the plurality of clamping slots, and each of the clamping rods is respectively clamped in the inside of the clamping slot.

[0007] As a further solution of the present invention, the rotating drum driving mechanism includes a plurality of limit rods fixedly connected to the outside of the transducer, a plurality of curved grooves are opened on the inner side of the rotating drum, and the plurality of curved grooves are respectively paired with the plurality of limit rods, and one end of each limit rod is respectively inserted into the interior of each curved groove.

[0008] As a further solution of the present invention, the curved groove structure is divided into a straight segment groove and a spiral segment groove; When the limiting rod is located inside the straight segment groove, the rotating drum maintains the initial position unchanged; When the limiting plug rod is located inside the spiral segment groove, the rotating drum starts to rotate from the initial position.

[0009] As a further solution of the present invention, the transducer fixing mechanism includes a docking platform fixedly connected to one end of the transducer away from the stop block, an upper clamping ring is fixedly connected to the side of the docking platform close to the fixed tube, a plurality of docking grooves are provided on the upper clamping ring, and the plurality of docking grooves are distributed in a circular array, and a docking platform fixing mechanism is provided on the side of the fixed tube away from the stop block.

[0010] As a further solution of the present invention, the docking platform fixing mechanism includes a lower retaining ring fixedly connected to one side of the fixing tube, and a plurality of docking plates are fixedly connected to the upper side of the lower retaining ring. The plurality of docking plates are distributed in a circular array, and the plurality of docking plates are respectively paired with the plurality of docking grooves. Each of the docking plates is respectively clamped to the inner side of each of the docking grooves, and a caliper connecting mechanism is provided on the inner side of the docking plate to connect the lower retaining ring and the upper retaining ring.

[0011] As a further scheme of the present invention, the caliper connecting mechanism includes an annular limiting groove opened on the docking platform, a plurality of sliding grooves are opened at the bottom of the annular limiting groove, and the plurality of sliding grooves are distributed in a circular array, a caliper is slidably connected to the inner side of each sliding groove, a plurality of docking plates are fixedly connected to the inner sides with hooks, a plurality of hooks are respectively paired with a plurality of calipers, each hook is clamped with each caliper, and a caliper opening and closing driving mechanism for opening and closing the caliper and the hook is provided on the inner side of the annular limiting groove.

[0012] As a further solution of the present invention, the caliper opening and closing drive mechanism includes a swivel fixedly connected to the upper sides of multiple calipers at the same time, the swivel is slidably connected to the inner side of the annular limiting groove, the groove length of the sliding groove is greater than the length of the circular movement of the caliper when the swivel rotates, and an elastic reset mechanism is provided on the upper side of the swivel.

[0013] As a further solution of the present invention, the elastic reset mechanism includes a vertical plate rotatably connected to the upper side of the swivel, a spring is fixedly connected to one side of the vertical plate, one end of the spring is fixedly connected to a pull plate rotatably connected to the upper side of the docking platform, a sealing cover is fixedly connected to the upper side of the docking platform, and a wiring assembly is arranged on the outer side of the sealing cover.

[0014] As a further solution of the present invention, the fixed tube installation mechanism includes multiple installation grooves opened on both sides of the water meter housing, and the multiple fixed tubes are respectively installed on the inner sides of the installation grooves. The fixed tube is located on one side inside the installation groove and encloses the bottom of the installation groove to form a filling groove. The filling groove is used to place a coupling agent that facilitates ultrasonic transmission and reduces ultrasonic energy loss.

[0015] The beneficial effects of the present invention are: 1. The present invention cooperates with each other through multiple blocks, a drum driving mechanism and a caliper opening and closing driving machine. When the drum rotates, the connecting plate is driven to rotate, so that the multiple blocks can self-center and clamp the transducer from all sides, so as to achieve the effect of coinciding the central axis of the transducer with the central axis of the drum. For the transducer placed in the center of the drum, it plays a role in position correction. At the same time, multiple limit rods are in multiple curved grooves, respectively, in the form of circular symmetrical distribution, to support the transducer, so as to further correct the spatial position of the transducer in the drum. In addition, the hooks and calipers distributed in the circular array and the upper and lower clamping rings are mutually clamped, so as to accurately position and fix the end position of the transducer. In summary, from the overall point of view, the head and tail ends and the middle part of the entire transducer are corrected by three-level positioning, so as to achieve the effect of higher installation accuracy of the transducer in the fixed drum, which indirectly achieves the purpose of more accurate and scientific measurement data of ultrasonic water meters, and solves the problem that most ultrasonic water meter transducers on the market currently lack precise positioning components. 2. The present invention cooperates with the elastic reset mechanism and the caliper connection mechanism. When the transducer and the docking station need to be installed inside the drum as a whole, the caliper touches the hook and is pushed back. The spring stretches, which directly drives the rotating ring to rotate, thereby realizing the clamping and fixing of the caliper and the hook. When the fixation of the caliper and the hook needs to be opened, it is only necessary to pull the vertical plate to make the rotating ring drive the caliper to rotate and deviate, thereby releasing the hook, thereby realizing the effect of rapid disassembly and installation of the transducer. 3. The present invention first performs sealing through the sealing cover, then performs the second layer of sealing through the lower clamping ring and the upper clamping ring, and then performs the third layer of sealing on the transducer through the rotating cylinder, so that the transducer located inside the fixed cylinder is always in a dry and sealed state, avoiding the influence of environmental factors such as external climate change on the operation of the transducer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 A cross-sectional view of an embodiment of the present invention; Figure 3 It is a schematic diagram of a first exploded structure of the transducer mounting structure of the present invention; Figure 4 for Figure 3 Side view of Figure 5 It is a schematic diagram of a second exploded structure of the transducer mounting structure of the present invention; Figure 6 It is a schematic diagram of a third exploded structure of the transducer mounting structure of the present invention; Figure 7 It is a schematic diagram of a fourth exploded structure of the transducer mounting structure of the present invention; Figure 8 for Figure 3A schematic diagram of the overall structure of the middle docking station (7); Fig. 9 for Figure 8 A top view of Fig.10 is a schematic diagram of the explosion structure of the fixed cylinder (4); Fig.11 It is a cross-sectional view of the drum (18).

[0017] In the figure: 1. water meter housing; 2. mounting groove; 3. transducer; 4. fixing cylinder; 5. sealing cover; 6. limiting rod; 7. docking platform; 8. spring; 9. pull plate; 10. annular limiting groove; 11. rotating ring; 12. upper retaining ring; 13. docking plate; 14. lower retaining ring; 15. block; 16. connecting plate; 17. curved groove; 18. rotating cylinder; 19. clamping groove; 20. caliper; 21. clamping hook; 22. vertical plate; 23. docking groove; 24. slide groove; 25. clamping rod. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figures 1 to 11 The present invention provides a technical solution: an ultrasonic water meter transducer installation structure, including a transducer 3, a water meter housing 1 and a fixed cylinder 4. In this embodiment, the fixed cylinder 4 is a square tube shape, and a cylindrical shape can be selected in other embodiments, which is also within the protection scope of the present invention. A line laying channel can be reserved inside the water meter housing 1, and the water meter display panel and the transducer 3 can communicate data through the laid lines. In other embodiments, data communication can also be achieved by using an external line method on the outside of the sealing cover 5. The inner side of the fixed cylinder 4 is rotatably connected to a rotating cylinder 18, and the transducer 3 is located inside the rotating cylinder 18. The rotating cylinder 18 is close to the rotating cylinder 18. One end of the water meter housing 1 is rotatably connected to four connecting plates 16, and the four connecting plates 16 are distributed in a circular array. One end of the four connecting plates 16 is fixedly connected to a stopper 15. The material of the stopper 15 is industrial composite rubber material, which is required to have certain toughness, elasticity and wear resistance. The four stops 15 are used to position the transducer 3 from the outside of the transducer 3. A connecting plate limiting mechanism is provided on the side of the fixed cylinder 4 close to the stopper 15, a rotating cylinder driving mechanism is provided between the transducer 3 and the rotating cylinder 18, a transducer fixing mechanism is provided on the other side of the fixed cylinder 4, and a fixed cylinder installation mechanism is provided on the water meter housing 1.

[0020] Please combine Figure 4 and Fig.10As shown, the connecting plate limiting mechanism includes four slots 19 opened on the side of the fixed cylinder 4 close to the stopper 15, and the lower sides of one end of the four connecting plates 16 close to the slots 19 are fixedly connected with a clamping rod 25, and the four clamping rods 25 are respectively paired with the four slots 19, and each clamping rod 25 is respectively clamped in the inside of the slot 19.

[0021] Please combine Fig.11 As shown, the drum driving mechanism includes four limit rods 6 fixedly connected to the outside of the transducer 3, and four curved grooves 17 are opened on the inner side of the drum 18. The four curved grooves 17 are respectively paired with the four limit rods 6, and one end of each limit rod 6 is respectively inserted into the inside of each curved groove 17.

[0022] Please combine Fig.11 As shown, the structure of the curved groove 17 is divided into a straight segment groove and a spiral segment groove; When the limiting rod 6 is located inside the straight segment groove, the rotating drum 18 maintains the initial position unchanged; When the limiting rod 6 is located inside the spiral segment groove, the drum 18 starts to rotate from the initial position.

[0023] Please combine Figure 6 , Figure 7 , Figure 8 and Fig. 9 As shown, the transducer fixing mechanism includes a docking platform 7 fixedly connected to one end of the transducer 3 away from the stopper 15, and an upper clamping ring 12 is fixedly connected to the side of the docking platform 7 close to the fixed tube 4. Four docking grooves 23 are opened on the upper clamping ring 12, and the four docking grooves 23 are distributed in a circular array. A docking platform fixing mechanism is provided on the side of the fixed tube 4 away from the stopper 15.

[0024] The docking platform fixing mechanism includes a lower snap ring 14 fixedly connected to one side of the fixing tube 4, and four docking plates 13 are fixedly connected to the upper side of the lower snap ring 14. The four docking plates 13 are distributed in a circular array, and the four docking plates 13 are respectively paired with four docking grooves 23. Each docking plate 13 is respectively clamped to the inner side of each docking groove 23, and a caliper connection mechanism is provided on the inner side of the docking plate 13 to connect the lower snap ring 14 and the upper snap ring 12.

[0025] Please combine Figure 8 As shown, the caliper connection mechanism includes an annular limit groove 10 opened on the docking platform 7, and four slide grooves 24 are opened at the bottom of the annular limit groove 10. The four slide grooves 24 are distributed in a circular array, and the inner side of each slide groove 24 is slidably connected with a caliper 20, and the inner sides of multiple docking plates 13 are respectively fixedly connected with hooks 21. Multiple hooks 21 are respectively paired with the four calipers 20, and each hook 21 is clamped with each caliper 20. The inner side of the annular limit groove 10 is provided with a caliper opening and closing drive mechanism for opening and closing the caliper and the hook 21.

[0026] Please combine Figure 8 and Fig. 9 As shown, the caliper opening and closing drive mechanism includes a swivel 11 fixedly connected to the upper sides of the four calipers 20 at the same time, the swivel 11 is slidably connected to the inner side of the annular limit groove 10, the groove length of the slide groove 24 is greater than the length of the circular movement of the caliper 20 when the swivel 11 rotates, and an elastic reset mechanism is arranged on the upper side of the swivel 11.

[0027] It should be particularly noted that the length of the slide groove 24 should reserve a certain amount of space, which is sufficient for the caliper 20 to swing back and forth.

[0028] Please combine Fig. 9 As shown, the elastic reset mechanism includes a vertical plate 22 rotatably connected to the upper side of the rotating ring 11, a spring 8 is fixedly connected to one side of the vertical plate 22, one end of the spring 8 is fixedly connected to a pull plate 9 rotatably connected to the upper side of the docking platform 7, a sealing cover 5 is fixedly connected to the upper side of the docking platform 7, a wiring assembly is arranged on the outer side of the sealing cover 5, and the sealing cover 5 has a certain height, which can form a buckle cover effect with the docking platform 7.

[0029] Please combine Figure 1 As shown, the fixed cylinder installation mechanism includes two installation grooves 2 opened on both sides of the water meter shell, and two fixed cylinders 4 are respectively installed on the inner sides of the installation grooves 2. The ultrasonic water meter in this embodiment adopts a two-pit transducer setting, and other embodiments may adopt multiple settings. The fixed cylinder is located on one side inside the installation groove 2 and encloses the bottom of the installation groove 2 to form a filling groove. The filling groove is used to place a coupling agent that facilitates ultrasonic transmission and reduces ultrasonic energy loss.

[0030] Working principle: The fixing cylinder 4 is fixed at a position slightly above the inside of the installation groove 2, and a certain amount of coupling agent is added to the bottom of the installation groove 2. After the transducer 3 is fixedly connected to the center of the docking platform 7, the docking platform 7 and the transducer 3 are inserted into the center of the rotating cylinder 18 as a whole. At this time, as one end of the transducer 3 gradually enters the rotating cylinder 18, the limiting rod 6 begins to enter the straight groove section of the curved groove 17 for the first time. When the transducer 3 and the plurality of limiting rods 6 continue to move along the curved groove 17 and enter the spiral groove section of the curved groove 17, the limiting rod 6 pushes the rotating cylinder 18 to rotate. Since the clamping rod 25 is limited by the clamping groove 19 on the fixing cylinder 4, the rotating cylinder 18 pushes the connecting plate 16 to swing, thereby indirectly achieving the effect of the plurality of stoppers 15 positioning and clamping the outer side of the transducer 3. At the same time, when the clamping rod 25 moves in the clamping groove 19 and the connecting plate 16 and the block 15 swing, the upper clamping ring 12 and the lower clamping ring 14 begin to approach and contact each other through the docking plate 13, and finally form a closed sealing ring. At the same time, the caliper 20 is resisted by the hook 21, and the caliper 20 is pushed back due to its own structural characteristics, driving the swivel 11 to rotate in the annular limit groove 10. At this time, the swivel 11 rotates forward, driving the spring 8 to deform and stretch, and then the upper clamping ring 12 continues to move downward, and the caliper 20 is successfully clamped into the hook 21, the spring 8 rebounds, and the swivel 11 reverses, thereby achieving the effect of fixing the transducer 3 through the docking platform 7.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ultrasonic water meter transducer mounting structure, comprising a transducer (3), a water meter housing (1) and a fixing tube (4), characterized in that: A rotating cylinder (18) is rotatably connected to the inner side of the fixed cylinder (4), the transducer (3) is located inside the rotating cylinder (18), a plurality of connecting plates (16) are rotatably connected to one end of the rotating cylinder (18) close to the water meter housing (1), the plurality of connecting plates (16) are arranged in a circumferential array, a stopper (15) is fixedly connected to one end of the plurality of connecting plates (16), the plurality of stoppers (15) are used to position the transducer (3) from the outside of the transducer (3), a connecting plate limiting mechanism is provided on one side of the fixed cylinder (4) close to the stopper (15), a rotating cylinder driving mechanism is provided between the transducer (3) and the rotating cylinder (18), a transducer fixing mechanism is provided on the other side of the fixed cylinder (4), and a fixing cylinder mounting mechanism is provided on the water meter housing (1).

2. The ultrasonic water meter transducer installation structure according to claim 1, characterized in that: The connecting plate limiting mechanism comprises a plurality of slots (19) formed on a side of the fixing tube (4) close to the stopper (15); a plurality of connecting plates (16) are fixedly connected to a clamping rod (25) at the lower side of one end close to the clamping slot (19); the plurality of clamping rods (25) are respectively arranged in pairs with the plurality of clamping slots (19); and each of the clamping rods (25) is respectively clamped in the interior of the clamping slot (19).

3. The ultrasonic water meter transducer installation structure according to claim 1, characterized in that: The drum drive mechanism comprises a plurality of limit rods (6) fixedly connected to the outside of the transducer (3); a plurality of curved grooves (17) are provided on the inside of the drum (18); the plurality of curved grooves (17) are respectively paired with the plurality of limit rods (6); one end of each limit rod (6) is respectively inserted into the inside of each curved groove (17).

4. The ultrasonic water meter transducer installation structure according to claim 3, characterized in that: The curved groove (17) structure is divided into a straight segment groove and a spiral segment groove; When the limiting insertion rod (6) is located inside the straight segment groove, the rotating drum (18) maintains its initial position unchanged; When the limiting plug rod (6) is located inside the spiral segment groove, the rotating drum (18) starts to rotate from the initial position.

5. The ultrasonic water meter transducer installation structure according to claim 1, characterized in that: The transducer fixing mechanism comprises a docking platform (7) fixedly connected to an end of the transducer (3) away from the stopper (15); an upper clamping ring (12) is fixedly connected to a side of the docking platform (7) close to the fixing cylinder (4); a plurality of docking grooves (23) are formed on the upper clamping ring (12); the plurality of docking grooves (23) are distributed in a circumferential array; and a docking platform fixing mechanism is provided on a side of the fixing cylinder (4) away from the stopper (15).

6. The ultrasonic water meter transducer installation structure according to claim 5, characterized in that: The docking station fixing mechanism comprises a lower clamping ring (14) fixedly connected to one side of the fixing cylinder (4); a plurality of docking plates (13) are fixedly connected to the upper side of the lower clamping ring (14); the plurality of docking plates (13) are arranged in a circumferential array; the plurality of docking plates (13) are respectively arranged in pairs with the plurality of docking grooves (23); each of the docking plates (13) is respectively clamped to the inner side of each of the docking grooves (23); and a caliper connection mechanism for connecting the lower clamping ring (14) and the upper clamping ring (12) is provided on the inner side of the docking plate (13).

7. The ultrasonic water meter transducer installation structure according to claim 6, characterized in that: The caliper connection mechanism comprises an annular limiting groove (10) formed on the docking platform (7), a plurality of slide grooves (24) being formed at the bottom of the annular limiting groove (10), the plurality of slide grooves (24) being arranged in a circumferential array, a caliper (20) being slidably connected to the inner side of each slide groove (24), a hook (21) being fixedly connected to the inner side of a plurality of docking plates (13), a plurality of hooks (21) being paired with a plurality of calipers (20), each hook (21) being engaged with each caliper (20), and a caliper opening and closing driving mechanism for opening and closing the caliper and the hook (21) being arranged on the inner side of the annular limiting groove (10).

8. The ultrasonic water meter transducer installation structure according to claim 7, characterized in that: The caliper opening and closing driving mechanism comprises a rotating ring (11) fixedly connected to the upper sides of the plurality of calipers (20), the rotating ring (11) being slidably connected to the inner side of the annular limiting groove (10), the groove length of the sliding groove (24) being greater than the length of the circular movement of the caliper (20) when the rotating ring (11) rotates, and an elastic reset mechanism being arranged on the upper side of the rotating ring (11).

9. The ultrasonic water meter transducer installation structure according to claim 8, characterized in that: The elastic reset mechanism comprises a vertical plate (22) rotatably connected to the upper side of the rotating ring (11); a spring (8) is fixedly connected to one side of the vertical plate (22); one end of the spring (8) is fixedly connected to a pull plate (9) rotatably connected to the upper side of the docking platform (7); a sealing cover (5) is fixedly connected to the upper side of the docking platform (7); and a wiring assembly is arranged on the outer side of the sealing cover (5).

10. The ultrasonic water meter transducer installation structure according to claim 1, characterized in that: The fixing tube installation mechanism comprises a plurality of installation grooves (2) opened on both sides of the water meter housing, a plurality of the fixing tubes (4) are respectively installed on the inner sides of the installation grooves (2), and the fixing tubes are located on one side inside the installation groove (2) and enclose a filling groove with the bottom of the installation groove (2), and the filling groove is used to place a coupling agent that facilitates ultrasonic transmission and reduces ultrasonic energy loss.

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