Flow guide structure for water meter

Abstract

The utility model discloses a diversion structure for a water meter, which belongs to the field of water meter manufacture and comprises a diversion channel fixedly arranged on a water meter shell, a support retainer ring is arranged in the water meter shell, an opening is arranged on the side edge of the water meter shell, one end of the diversion channel is arranged at the opening, and the other end of the diversion channel is connected with a water inlet and outlet pipeline. A middle partition plate extending into the flow guide channel is fixedly arranged on the supporting check ring at the opening, and the flow guide channel comprises an upper cover body and a lower cover body which are arranged along the middle partition plate in a separated mode. The flow guide channel with the middle partition plate is arranged at the opening of the water meter shell, water flow can be effectively guided to smoothly enter and exit from the water meter along the two sides of the middle partition plate, the resistance and turbulence phenomena in the water flowing process are reduced, and the welding position of the water meter is arranged on the outer side as much as possible through the design of the flow guide channel. And the problems of water leakage and the like caused by welding defects or material breakage and the like can be seen more visually.

Description

Technical Field

[0001] The utility model belongs to the field of water meter manufacturing, and in particular relates to a flow guide structure for a water meter. Background Art

[0002] In traditional water meter design, the flow guide structure is usually assembled from a variety of parts, which need to be assembled through threaded connections or other mechanical fixing methods. Although this method can achieve a certain sealing effect, it has problems such as high assembly complexity, poor sealing and inconvenient maintenance in actual applications.

[0003] With the development of welding technology, especially the advancement of precision welding technology, such as laser welding and electron beam welding, new solutions are provided for the design of water meter diversion structures. Welding can not only simplify the connection between components, but also significantly improve the sealing and overall strength of the structure, which is particularly important for precision metering equipment such as water meters.

[0004] For example, the invention patent with publication number CN109916464A discloses a water meter shell, including a meter body, a water inlet pipe, a water outlet pipe, and a movement positioning ring. The meter body, the water inlet pipe, and the water outlet pipe are respectively formed by stamping steel pipes. An arc-shaped shrinkage ring is formed at the lower end of the meter body, and a water inlet and a water outlet are opened on both sides. The neck is stamped to form an annular shrinkage on the outer wall of the meter body, and an inner convex ring is formed on the inner wall, and a horizontal convex ring is formed by flanging. A round steel plate is welded at the lower port as the bottom of the shell, and an external port thread is set at the upper end; the outer ends of the water inlet pipe and the water outlet pipe are provided with external threads of the connecting pipe, and the inner ends are formed with arc-shaped openings by laser cutting, which are respectively welded to the outer surfaces of the water inlet and the water outlet of the meter body.

[0005] However, the existing water meter structure determines that welding is not simple, and many welding locations are inside the water meter, so when welding defects occur and water leaks occur, it cannot be discovered.

[0006] In view of this, this application is hereby filed. Utility Model Content

[0007] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a flow guide structure for a water meter.

[0008] The utility model is realized by the following technical solutions:

[0009] A flow guide structure for a water meter comprises a flow guide channel fixedly arranged on a water meter housing, a support retaining ring is arranged inside the water meter housing, an opening is arranged on the side of the water meter housing, one end of the flow guide channel is arranged at the opening, and the other end is connected to an inlet and outlet water pipe, a middle partition extending into the flow guide channel is fixedly arranged on the support retaining ring at the opening, and the flow guide channel comprises an upper cover body and a lower cover body separated and arranged along the middle partition body.

[0010] Preferably, the support retaining ring divides the opening into an upper half and a lower half, and the inlet and outlet water pipelines include a first water pipe and a second water pipe;

[0011] One end of the upper cover body is sealingly connected to the upper half of the opening, and the other part is sealingly connected to the first water pipe;

[0012] One end of the lower cover body is sealingly connected to the lower half of the opening, and the other part is sealingly connected to the second water pipe.

[0013] Preferably, along the direction of the middle partition board, both the upper cover body and the lower cover body are trapezoidal structures with gradually decreasing cross-sectional areas. The ends with larger cross-sectional areas of the upper cover body and the lower cover body are respectively connected to the upper half and the lower half of the opening, and the ends with smaller cross-sectional areas are respectively connected to the first water pipe and the second water pipe;

[0014] Both the upper cover body and the lower cover body include two side plates symmetrically arranged along the water flow direction. The two side plates incline towards the inside to form a trapezoidal structure. A connecting plate is arranged between the two side plates, and two arc-shaped installation positions are respectively arranged at both ends of the connecting plate corresponding to the water meter housing and the inlet and outlet water pipelines.

[0015] Preferably, L-shaped cuts corresponding to the side plates and the arc-shaped installation positions are arranged on both the first water pipe and the second water pipe.

[0016] Preferably, the first water pipe and the second water pipe are abutted and installed, or the first water pipe and the second water pipe are of an integral structure, and the L-shaped cuts of the first water pipe and the second water pipe form a rectangular cut;

[0017] One end of the middle partition board is abutted and installed on the support retaining ring, and the other end extends into the rectangular cut and abuts against the inner wall of the inlet and outlet water pipelines;

[0018] The side of the middle partition board extends to the outer wall edge of the diversion channel. The upper cover body and the lower cover body are respectively abutted and fixed on the upper and lower sides of the middle partition board, and the outer side walls of the two side plates of the upper cover body and the lower cover body are flush with the side of the middle partition board.

[0019] Preferably, one end of the middle partition board is abutted and installed on the support retaining ring, and the other end extends to the outer wall edge of the inlet and outlet water pipelines. The first water pipe and the second water pipe are respectively abutted and fixed on the upper and lower sides of the middle partition board;

[0020] The side of the middle partition board extends to the outer wall edge of the diversion channel. The upper cover body and the lower cover body are respectively abutted and fixed on the upper and lower sides of the middle partition board, and the outer side walls of the two side plates of the upper cover body and the lower cover body are flush with the side of the middle partition board.

[0021] Preferably, the water meter housing includes an upper housing and a lower housing. The support retaining ring and the upper housing are of an integral structure, which is formed by bending the bottom edge of the upper housing inward.

[0022] Preferably, the upper housing, the lower housing, the middle partition plate, the diversion channel and the inlet and outlet water pipelines are integrally connected by welding in sequence.

[0023] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0024] 1. By arranging a diversion channel with a middle partition plate at the opening of the water meter housing, it can effectively guide the water flow to smoothly enter and exit the water meter along both sides of the middle partition plate, reduce the resistance and turbulence phenomenon during the water flow process, and through the design of the diversion channel, the welding position of the water meter is arranged as much as possible on the outside. When problems such as water leakage caused by welding defects or material rupture occur, it can be seen more intuitively.

[0025] 2. By designing the upper cover body and the lower cover body into a trapezoidal structure, the water flow can be more evenly distributed when passing through the diversion channel, which helps to improve the measurement accuracy of the water meter and reduce the water flow noise.

[0026] 3. By arranging an arc-shaped installation position on the connecting plate of the upper cover body and the lower cover body, it can be conveniently and accurately docked with the water meter housing and the inlet and outlet water pipelines, simplifying the installation steps.

[0027] 4. By arranging an L-shaped notch on the inlet and outlet water pipelines, the diversion structure can be closely attached to the water pipe, which not only ensures good sealing performance but also reduces the space occupation of the overall device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic structural diagram of the present utility model;

[0029] Figure 2 is a schematic diagram of the installation of the middle partition plate of the present utility model;

[0030] Figure 3 is a schematic diagram of the position of the support retaining ring of the present utility model;

[0031] Figure 4 is a schematic diagram of the assembly of the lower housing and the second water pipe of the present utility model;

[0032] Figure 5 is a schematic structural diagram of the lower housing of the present utility model;

[0033] Figure 6 is a schematic structural diagram of the second water pipe of the present utility model.

[0034] In the figure: 1. Diversion channel; 11. Upper cover body; 12. Lower cover body; 13. Side plate; 14. Connecting plate; 2. Water meter housing; 21. Upper housing; 22. Lower housing; 23. Support retaining ring; 3. Middle partition plate; 4. Inlet and outlet water pipelines; 41. First water pipe; 42. Second water pipe. Detailed implementation mode

[0035] The present utility model will be further described and illustrated below in conjunction with the accompanying drawings.

[0036] As Figure 1 – Figure 6 shown, this embodiment provides a diversion structure for a water meter, including a diversion channel 1 fixedly arranged on the water meter housing 2. A support retaining ring 23 is arranged inside the water meter housing 2. An opening is provided on the side of the water meter housing 2. One end of the diversion channel 1 is arranged at the opening, and the other end is connected to the inlet and outlet water pipelines 4. A middle partition plate 3 extending into the diversion channel 1 is fixedly arranged on the support retaining ring 23 at the opening. The diversion channel 1 includes an upper cover body 11 and a lower cover body 12 separated along the middle partition plate 3.

[0037] By arranging the diversion channel 1 with the middle partition plate 3 at the opening of the water meter housing 2, the water flow can be effectively guided to smoothly enter and exit the water meter along both sides of the middle partition plate 3, reducing the resistance and turbulence phenomenon during the water flow process. And through the design of the diversion channel 1, the welding position of the water meter is arranged on the outside as much as possible. When problems such as water leakage occur due to welding defects or material rupture, etc., it can be seen more intuitively.

[0038] The support retaining ring 23 divides the opening into an upper half part and a lower half part. The inlet and outlet water pipelines 4 include a first water pipe 41 and a second water pipe 42;

[0039] One end of the upper cover body 11 is hermetically connected to the upper half part of the opening, and the other part is hermetically connected to the first water pipe 41;

[0040] One end of the lower cover body 12 is hermetically connected to the lower half part of the opening, and the other part is hermetically connected to the second water pipe 42.

[0041] By hermetically connecting both ends of the diversion channel 1 to the water meter housing 2 and the inlet and outlet water pipelines 4 respectively, the rapid flow of water is realized, the working efficiency of the water meter is improved, and it is beneficial to ensure the water tightness of the whole system and prevent water leakage.

[0042] Preferably, along the direction of the middle partition plate 3, both the upper cover body 11 and the lower cover body 12 are trapezoidal structures with gradually decreasing cross-sectional areas. The ends with larger cross-sectional areas of the upper cover body 11 and the lower cover body 12 are respectively connected to the upper half and the lower half of the opening, and the ends with smaller cross-sectional areas are respectively connected to the first water pipe 41 and the second water pipe 42. By designing the upper cover body 11 and the lower cover body 12 as trapezoidal structures, the water flow can be more evenly distributed when passing through the diversion channel 1, which helps to improve the measurement accuracy of the water meter and reduce the water flow noise.

[0043] Furthermore, both the upper cover body 11 and the lower cover body 12 include two side plates 13 symmetrically arranged along the water flow direction. The two side plates 13 are inclined towards the inside to form a trapezoidal structure. A connecting plate 14 is arranged between the two side plates 13, and two arc-shaped installation positions are respectively provided at both ends of the connecting plate 14 corresponding to the water meter housing 2 and the inlet and outlet water pipelines 4. By providing arc-shaped installation positions on the connecting plate 14 of the upper cover body 11 and the lower cover body 12, it is convenient to accurately dock with the water meter housing 2 and the inlet and outlet water pipelines 4, simplifying the installation steps.

[0044] Preferably, L-shaped cuts corresponding to the side plates 13 and the arc-shaped installation positions are provided on both the first water pipe 41 and the second water pipe 42. By providing L-shaped cuts on the two water pipes of the inlet and outlet water pipelines 4, the diversion structure can be closely attached to the water pipes, which not only ensures good sealing performance but also reduces the space occupied by the overall device.

[0045] Furthermore, the L-shaped cut forms two side edges and two arc edges with different heights on the pipe body of the water pipe. One arc edge abuts against the middle partition plate 3 for welding, and the other arc edge abuts against the arc-shaped installation position for welding. The two side edges are welded corresponding to the two side plates 13.

[0046] Preferably, the first water pipe 41 and the second water pipe 42 are abutted and installed, and are welded together after abutting. The difficulty of processing L-shaped cuts on the two water pipes is low and the efficiency is high.

[0047] Or, the first water pipe 41 and the second water pipe 42 are of an integral structure, and the L-shaped cuts of the first water pipe 41 and the second water pipe 42 are combined to form a rectangular cut. A rectangular cut is directly cut on a single water pipe for subsequent installation. The difficulty is slightly higher but the steps are simple.

[0048] On the basis of forming the rectangular cut, one end of the middle partition plate 3 is abutted and installed on the support retaining ring 23, and the other end extends into the rectangular cut, dividing the rectangular cut into two openings, and then abuts against the inner wall of the inlet and outlet water pipelines 4.

[0049] Further extend the side edge of the middle partition plate 3 to the outer wall edge of the diversion channel 1. The upper cover body 11 and the lower cover body 12 are respectively abutted and fixed on the upper and lower sides of the middle partition plate 3. The outer side walls of the two side plates 13 of the upper cover body 11 and the lower cover body 12 are flush with the side edge of the middle partition plate 3. When the first water pipe 41 and the second water pipe 42 are abutted and installed with each other or are an integral body, the assembly steps can be simplified, the production cost can be reduced, the stability of the entire diversion structure is enhanced, and the pressure distribution uniformity when water flows through is improved at the same time.

[0050] When the first water pipe 41 and the second water pipe 42 are of a split structure or are not welded together, one end of the middle partition plate 3 is abutted and installed on the support retaining ring 23, and the other end extends to the outer wall edge of the inlet and outlet water pipeline 4. The first water pipe 41 and the second water pipe 42 are respectively abutted and fixed on the upper and lower sides of the middle partition plate 3.

[0051] The side edge of the middle partition plate 3 extends to the outer wall edge of the diversion channel 1. The upper cover body 11 and the lower cover body 12 are respectively abutted and fixed on the upper and lower sides of the middle partition plate 3. The outer side walls of the two side plates 13 of the upper cover body 11 and the lower cover body 12 are flush with the side edge of the middle partition plate 3.

[0052] In this way, welding can be directly carried out on the outer side of the side plate 13 and on the outer sides of the first water pipe 41 and the second water pipe 42. Taking the middle partition plate 3 as a reference, the inlet and outlet water pipeline 4 and the diversion channel 1 are welded to the middle partition plate 3. The welding points are all outside the water meter housing 2, and problems will be easier to find.

[0053] The water meter housing 2 includes an upper housing 21 and a lower housing 22. The support retaining ring 23 and the upper housing 21 are of an integral structure and are formed by bending the bottom edge of the upper housing 21 inward. By bending the bottom of the upper housing 21 inward to form the support retaining ring 23, the position and horizontal state of the support retaining ring 23 inside the water meter housing 2 can be better adjusted, the manual welding cost can be reduced, and the finished product rate can be improved.

[0054] Further preferably, the upper housing 21, the lower housing 22, the middle partition plate 3, the diversion channel 1 and the inlet and outlet water pipeline 4 are sequentially connected into an integral body by welding.

[0055] Install the water meter movement inside the water meter housing 2. Through the diversion channel 1, the inlet and outlet of water on one side of the water meter are realized. Furthermore, the various components are connected into an integral body by welding, which improves the mechanical strength and durability of the entire diversion structure, extends the service life, and avoids leakage problems caused by long-term use.

Claims

1. A flow guide structure for a water meter, characterized in that: The invention comprises a guide channel (1) fixedly arranged on a water meter housing (2), a support retaining ring (23) being arranged inside the water meter housing (2), an opening being arranged on the side of the water meter housing (2), one end of the guide channel (1) being arranged at the opening, and the other end being connected to an inlet and outlet water pipe (4), a middle partition (3) extending into the guide channel (1) being fixedly arranged on the support retaining ring (23) at the opening, and the guide channel (1) comprising an upper cover body (11) and a lower cover body (12) being arranged along the middle partition body (3).

2. A flow guide structure for a water meter according to claim 1, characterized in that: The support retaining ring (23) divides the opening into an upper half and a lower half, and the water inlet and outlet pipeline (4) comprises a first water pipe (41) and a second water pipe (42); One end of the upper cover body (11) is sealedly connected to the upper half of the opening, and the other end is sealedly connected to the first water pipe (41); One end of the lower cover body (12) is sealedly connected to the lower half of the opening, and the other end is sealedly connected to the second water pipe (42).

3. A flow guide structure for a water meter according to claim 2, characterized in that: Along the direction in which the middle partition (3) is arranged, the upper cover body (11) and the lower cover body (12) are both trapezoidal structures with gradually decreasing cross-sectional areas, the ends of the upper cover body (11) and the lower cover body (12) with large cross-sectional areas are respectively connected to the upper half and the lower half of the opening, and the ends with small cross-sectional areas are respectively connected to the first water pipe (41) and the second water pipe (42); The upper cover body (11) and the lower cover body (12) both comprise two side plates (13) symmetrically arranged along the water flow direction, the two side plates (13) are inclined inwardly to form a trapezoidal structure, a connecting plate (14) is arranged between the two side plates (13), and two arc-shaped installation positions are respectively arranged at two ends of the connecting plate (14) corresponding to the water meter housing (2) and the water inlet and outlet pipes (4).

4. A flow guide structure for a water meter according to claim 3, characterized in that: The first water pipe (41) and the second water pipe (42) are both provided with L-shaped cutouts corresponding to the side panels (13) and the arc-shaped installation positions.

5. A flow guide structure for a water meter according to claim 4, characterized in that: The first water pipe (41) and the second water pipe (42) are installed in abutment with each other, or the first water pipe (41) and the second water pipe (42) are an integrated structure, and the L-shaped cutouts of the first water pipe (41) and the second water pipe (42) are combined to form a rectangular cutout; One end of the middle partition plate (3) is mounted on the support retaining ring (23), and the other end extends into the rectangular cutout and is mounted on the inner wall of the water inlet and outlet pipes (4); The side edge of the middle partition (3) extends to the outer wall edge of the guide channel (1), and the upper cover body (11) and the lower cover body (12) are respectively abutted and fixed on the upper and lower sides of the middle partition (3), and the outer side walls of the two side plates (13) of the upper cover body (11) and the lower cover body (12) are both flush with the side edge of the middle partition (3).

6. A flow guide structure for a water meter according to claim 4, characterized in that: One end of the middle partition (3) is mounted in abutment with the support retaining ring (23), and the other end extends to the outer wall edge of the water inlet and outlet pipes (4); the first water pipe (41) and the second water pipe (42) are respectively fixed in abutment with the upper and lower sides of the middle partition (3); The side edge of the middle partition (3) extends to the outer wall edge of the guide channel (1), and the upper cover body (11) and the lower cover body (12) are respectively abutted and fixed on the upper and lower sides of the middle partition (3), and the outer side walls of the two side plates (13) of the upper cover body (11) and the lower cover body (12) are both flush with the side edge of the middle partition (3).

7. A flow guide structure for a water meter according to any one of claims 1 to 6, characterized in that: The water meter housing (2) comprises an upper housing (21) and a lower housing (22); the support retaining ring (23) and the upper housing (21) are an integral structure formed by bending the bottom edge of the upper housing (21) inwardly.

8. A flow guide structure for a water meter according to claim 7, characterized in that: The upper shell (21), the lower shell (22), the middle partition (3), the flow guide channel (1) and the water inlet and outlet pipes (4) are sequentially connected into one body by welding.

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