Middle check ring structure for water meter

Abstract

The utility model discloses a middle check ring structure for a water meter, which belongs to the field of water meter manufacture, and comprises a first side shell and a second side shell which are symmetrically arranged, the first side shell and the second side shell are spliced to form a water meter shell, two mounting openings are correspondingly arranged on the water meter shell, and the water meter shell is provided with a water inlet and a water outlet. A supporting check ring used for mounting the water meter movement is arranged in the water meter shell, mounting plates corresponding to the two mounting openings are arranged at the two ends of the supporting check ring, and the mounting plates are inserted into the mounting openings to be fixed. The first side shell and the second side shell are spliced to form the water meter shell, the supporting check ring is arranged in the water meter shell to install the water meter movement, and the assembling efficiency and the structural stability of the water meter can be effectively improved. Meanwhile, the installation plate and the installation opening are fixed in a matched mode, the installation process is simplified, the installation accuracy of the water meter movement is guaranteed, welding is only needed along the gap, and complex welding operation such as entering a welding furnace is not needed.

Description

Technical Field

[0001] The utility model belongs to the field of water meter manufacturing, and more specifically, relates to a middle retaining ring structure for a water meter. Background Art

[0002] In the design and manufacturing process of traditional water meters, an integrated housing structure is usually adopted to accommodate the internal metering mechanism. Although this design has a simple structure, there are some deficiencies in practical applications. For example, during installation and maintenance, due to the narrow internal space, it is inconvenient to operate, increasing the difficulty of installation and repair.

[0003] For example, the invention patent with the publication number CN109916464A discloses a water meter housing, including a meter body, a water inlet pipe and a water outlet pipe provided on the left and right sides of the meter body, and a movement positioning ring provided inside the meter body. It is characterized in that the meter body, the water inlet pipe and the water outlet pipe are respectively formed by stamping steel pipes with corresponding diameters. An arc-shaped contraction ring surrounding the lower port is formed at the lower end of the meter body. Water inlets and outlets are respectively provided on the left and right sides of the meter body. A circular constriction is formed on the outer wall of the meter body neck by stamping, and an inner convex ring is formed on the inner wall of the meter body; the meter body is formed with a horizontal convex ring by flanging; a circular steel plate is welded to the lower port of the meter body by a laser welding process as the bottom of the housing; an external thread is provided at the upper port of the meter body; external threads of the connecting pipes are provided at the outer ends of the water inlet pipe and the water outlet pipe formed by stamping, and the inner ends thereof are formed with arc-shaped ports matching the outer surfaces where the water inlets and outlets of the meter body are located by laser cutting, and are respectively welded to the outer surfaces where the water inlets and outlets of the meter body are located by a laser welding process; the movement positioning ring is also welded in the inner cavity of the meter body by a laser welding process.

[0004] In this solution, the movement positioning ring needs to be inserted into the inner cavity of the meter body and then welded. Not only is it inconvenient to position the placement position of the movement positioning ring, but also the welding needs to be carried out by reaching into a narrow space or entering a welding furnace, which is rather cumbersome.

[0005] In view of this, the present application is specifically proposed. Content of the Utility Model

[0006] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a middle retaining ring structure for a water meter. The utility model is realized through the following technical solutions:

[0007] A middle retaining ring structure for a water meter includes symmetrically arranged first side housing and second side housing. The first side housing and the second side housing are spliced to form a water meter housing. Two installation openings are correspondingly provided on the water meter housing. A support retaining ring for installing a water meter movement is arranged inside the water meter housing. Installation plates are provided at both ends of the support retaining ring corresponding to the two installation openings, and the installation plates are inserted into the installation openings for fixation.

[0008] Preferably, the first side housing and the second side housing are welded together, the outer circumferential surface of the support retaining ring is welded to the inner wall of the water meter housing, and the mounting plate is welded and sealed along the mounting opening.

[0009] Preferably, a cylindrical first mounting portion is provided at the top of the water meter housing, a first fixing ring is sleeved on the first mounting portion, and the top end of the inner wall of the first fixing ring extends inward to form a limiting step.

[0010] Preferably, a second mounting portion is provided at the water outlet end of the water meter housing, and a second fixing ring is sleeved on the second mounting portion.

[0011] Preferably, the two mounting openings are respectively arranged on the water inlet side and the water outlet side of the water meter housing.

[0012] Preferably, the water meter housing includes a housing main body, a water inlet channel and a water outlet channel, and the water inlet channel and the water outlet channel are respectively installed on two opposite sides of the housing main body.

[0013] Preferably, one of the mounting openings is arranged at the lower part of the connection between the water inlet channel and the housing main body, and the other mounting opening is arranged at the upper part of the connection between the water outlet channel and the housing main body.

[0014] Preferably, one side of the support retaining ring extends obliquely downward to form a mounting plate, and the other side of the support retaining ring extends obliquely upward to form another mounting plate.

[0015] Preferably, the outer edge of the mounting plate is arranged to fit the outer side wall of the mounting opening and is flush with the outer side wall at each point.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. By splicing the first side housing and the second side housing to form the water meter housing and arranging a support retaining ring inside to install the water meter movement, the assembly efficiency and structural stability of the water meter can be effectively improved. At the same time, through the cooperation and fixation of the mounting plate and the mounting opening, the installation process is simplified and the installation accuracy of the water meter movement is ensured. Only welding along the gap is required, and complex welding operations such as entering a welding furnace are not needed.

[0018] 2. By arranging a first mounting portion with a first fixing ring at the top of the water meter housing and setting a limiting step on the first fixing ring, the stability of the top installation of the water meter can be improved.

[0019] 3. By arranging mounting plates formed by the support retaining ring extending obliquely in different directions on both sides, it not only helps to improve the smoothness of water flow, but also ensures good fitting between the mounting plate and the water meter housing, thereby improving the sealing performance of the whole device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the external structure of the present utility model;

[0021] Figure 2 is a schematic diagram of the internal structure of the present utility model;

[0022] Figure 3 is a schematic diagram of the second side housing of the present utility model;

[0023] Figure 4 is a schematic diagram of the support retaining ring structure of the present utility model;

[0024] Figure 5 is a schematic diagram of the first fixing ring structure of the present utility model.

[0025] In the figure: 1, water meter housing; 11, first side housing; 12, second side housing; 2, support retaining ring; 21, mounting plate; 3, mounting opening; 4, first fixing ring; 5, second fixing ring; 6, water inlet channel; 7, water outlet channel. Detailed implementation manners

[0026] The present utility model will be further described below with reference to the accompanying drawings.

[0027] As Figure 1 – Figure 5 shown, this embodiment provides a middle retaining ring structure for a water meter, including symmetrically arranged first side housing 11 and second side housing 12. The first side housing 11 and the second side housing 12 are spliced to form the water meter housing 1. Two mounting openings 3 are correspondingly arranged on the water meter housing 1. A support retaining ring 2 for installing a water meter movement is arranged inside the water meter housing 1. Mounting plates 21 are correspondingly arranged at both ends of the support retaining ring 2 for the two mounting openings 3, and the mounting plates 21 are inserted into the mounting openings 3 for fixation.

[0028] By splicing the first side housing 11 and the second side housing 12 to form the water meter housing 1 and arranging the support retaining ring 2 inside to install the water meter movement, the assembly efficiency and structural stability of the water meter can be effectively improved. At the same time, through the cooperation and fixation of the mounting plates 21 and the mounting openings 3, the installation process is simplified and the installation accuracy of the water meter movement is ensured. Only welding along the gap is required, and complex welding operations such as entering a welding furnace are not needed.

[0029] Furthermore, the first side housing 11 and the second side housing 12 are welded into one body. The outer circumferential surface of the support retaining ring 2 is welded to the inner wall of the water meter housing 1, and the mounting plates 21 are welded and sealed along the mounting openings 3.

[0030] The step of welding the outer circumferential surface of the support retaining ring 2 to the inner wall of the water meter housing 1 is carried out after the assembly of the mounting plate 21 and the mounting opening 3 is completed. There is no need to laboriously search for the installation position of the support retaining ring 2. It only requires cutting the mounting opening 3 when producing the first side housing 11 and the second side housing 12. The mounting opening 3 can be directly formed by placing the first side housing 11 and the second side housing 12 with a flat side on the processing table and then using inexpensive processing methods such as wire cutting or laser cutting. After the support retaining ring 2 is formed into a flat surface using wire cutting or laser cutting, sheet metal processing can be performed on the mounting plate 21 parts on both sides and bent into an inclined mounting plate 21.

[0031] Preferably, a cylindrical first mounting portion is provided at the top of the water meter housing 1, and a first fixing ring 4 is sleeved on the first mounting portion. The top end of the inner wall of the first fixing ring 4 extends inward to form a limiting step.

[0032] By providing a first mounting portion with a first fixing ring 4 at the top of the water meter housing 1 and simultaneously providing a limiting step on the first fixing ring 4, the stability of the installation at the top of the water meter can be improved.

[0033] Further preferably, a second mounting portion is provided at the water outlet end of the water meter housing 1, and a second fixing ring 5 is sleeved on the second mounting portion. The top end of the inner wall of the second fixing ring 5 can also extend inward to form a limiting step to ensure the stability of the installation position.

[0034] Preferably, the two mounting openings 3 are respectively provided on the water inlet side and the water outlet side of the water meter housing 1. By respectively providing the mounting openings 3 on the water inlet side and the water outlet side, it helps to balance the pressure distribution inside the water meter, reduce the influence of water flow on the water meter movement, and at the same time facilitate the mounting plate 21 to divide the inside of the water meter housing 1 to form two parts of the cavity, and then cooperate with the meter core to realize the metering function of the water meter.

[0035] The water meter housing 1 includes a housing main body, a water inlet channel 6 and a water outlet channel 7, and the water inlet channel 6 and the water outlet channel 7 are respectively installed on opposite sides of the housing main body.

[0036] Preferably, one of the mounting openings 3 is provided at the lower part of the connection between the water inlet channel 6 and the housing main body, and the other mounting opening 3 is provided at the upper part of the connection between the water outlet channel 7 and the housing main body.

[0037] The position layout of the mounting opening 3 and the mounting plate 21 can optimize the water flow direction, reduce the water flow resistance, thereby reducing the water flow noise and improving the user experience.

[0038] Preferably, one side of the support retaining ring 2 extends obliquely downward to form a mounting plate 21, and the other side of the support retaining ring 2 extends obliquely upward to form another mounting plate 21. After the movement is installed, the housing body is divided into upper and lower parts. The upper part is connected to the water inlet channel 6, and the lower part is connected to the water outlet channel 7. One mounting plate 21 seals the connection between the water inlet channel 6 and the lower part of the housing body, and the other mounting plate 21 seals the connection between the water outlet channel 7 and the upper part of the housing body, realizing that water enters from the water inlet channel 6, passes through the movement and then leaves from the water outlet channel 7.

[0039] Preferably, the outer edge of the mounting plate 21 is arranged to fit the outer side wall of the mounting opening 3 and is flush with the outer side wall at each point. This not only makes the appearance more tidy and beautiful, but also makes the welding smoother, which can further enhance the sealing performance of the overall structure and avoid potential water leakage problems.

[0040] The assembly steps of the water meter housing 1 are as follows:

[0041] First, place and snap the mounting plate 21 of the support retaining ring 2 onto the mounting openings 3 of the first side housing 11 and the second side housing 12, and then splice the first side housing 11 and the second side housing 12 together to form a complete water meter housing 1. Then weld the gaps at the joints to form a seal.

[0042] Next, place the water meter movement on the support retaining ring 2 inside the water meter housing 1.

[0043] Then, connect the water inlet pipe and the water outlet pipe to the water inlet channel 6 and the water outlet channel 7 of the water meter respectively.

[0044] When water flows into the water meter, it first passes through the water inlet channel 6, and then is guided by the mounting plate 21 obliquely below the support retaining ring 2 and enters the upper part cavity inside the water meter housing 1.

[0045] When flowing through the water meter movement area, the water meter movement records the flow information.

[0046] After passing through the water meter movement area, it enters the lower part cavity inside the water meter housing 1.

[0047] Finally, the water flow is guided by the mounting plate 21 obliquely above the support retaining ring 2 and flows out from the water outlet channel 7.

Claims

1. A middle retaining ring structure for a water meter, characterized in that: The invention comprises a first side shell (11) and a second side shell (12) which are symmetrically arranged. The first side shell (11) and the second side shell (12) are spliced ​​to form a water meter shell (1). Two installation openings (3) are correspondingly arranged on the water meter shell (1). A support retaining ring (2) for installing a water meter movement is arranged inside the water meter shell (1). Mounting plates (21) are arranged at two ends of the support retaining ring (2) corresponding to the two installation openings (3). The mounting plates (21) are inserted into the installation openings (3) for fixation.

2. A middle retaining ring structure for a water meter according to claim 1, characterized in that: The first side shell (11) and the second side shell (12) are welded together, the outer circumferential surface of the support retaining ring (2) is welded to the inner wall of the water meter shell (1), and the mounting plate (21) is welded and sealed along the mounting opening (3).

3. A middle retaining ring structure for a water meter according to claim 1, characterized in that: A cylindrical first mounting portion is provided on the top of the water meter housing (1), a first fixing ring (4) is sleeved on the first mounting portion, and the top end of the inner wall of the first fixing ring (4) extends inwards to form a limiting step.

4. A middle retaining ring structure for a water meter according to claim 1, characterized in that: The water outlet end of the water meter housing (1) is provided with a second mounting portion, and a second fixing ring (5) is sleeved on the second mounting portion.

5. A middle retaining ring structure for a water meter according to any one of claims 1 to 4, characterized in that: The two installation openings (3) are respectively arranged on the water inlet side and the water outlet side of the water meter housing (1).

6. A middle retaining ring structure for a water meter according to claim 5, characterized in that: The water meter housing (1) comprises a housing body, a water inlet channel (6) and a water outlet channel (7), wherein the water inlet channel (6) and the water outlet channel (7) are respectively installed on two corresponding sides of the housing body.

7. A middle retaining ring structure for a water meter according to claim 6, characterized in that: One of the installation openings (3) is arranged at the lower part of the connection between the water inlet channel (6) and the shell body, and the other installation opening (3) is arranged at the upper part of the connection between the water outlet channel (7) and the shell body.

8. A middle retaining ring structure for a water meter according to claim 7, characterized in that: One side of the support retaining ring (2) extends obliquely downward to form a mounting plate (21), and the other side of the support retaining ring (2) extends obliquely upward to form another mounting plate (21).

9. A middle retaining ring structure for a water meter according to claim 5, characterized in that: The outer edge of the mounting plate (21) is arranged to fit the outer side wall of the mounting opening (3) and each point is flush with the outer side wall.

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