Water meter clamping ring mechanism

Abstract

The utility model discloses a water meter clamping ring mechanism, and belongs to the field of water meters. A water meter clamping ring mechanism comprises a ring body and a threaded cover connected to the ring body in a threaded mode, the ring body is composed of two sets of semi-ring pieces, the two sets of semi-ring pieces are matched with each other to form an annular closed space used for being connected with a meter shell, the water meter clamping ring mechanism further comprises an annular plate installed on the semi-ring pieces, and a plurality of first locking teeth are installed on the annular plate; the connecting position of the counter and the connecting position of the meter shell are connected, and the outer thread is arranged at the connecting position of the meter shell, so that the thread groove on the sealing gasket can be matched with the outer thread when the meter shell is twisted downwards, the outer thread is embedded into the thread groove, the sealing of the counter and the meter shell is realized, and after the connection is finished, the outer thread can be inserted into the thread groove. The protrusions on the sealing gasket can stop moving and release elasticity, and therefore the sealing effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of water meter technology, and in particular to a water meter retaining ring mechanism. Background Technology

[0002] A water meter is an instrument that measures water flow. It uses the direct mechanical movement of the moving wall volume measuring chamber or the effect of the water flow velocity on the impeller to calculate the volume of water flowing through the tap water pipe. The water meter retaining ring (also known as the water meter locking ring or fixing ring) is mainly used to fix the connection between the water meter counter (meter head) and the meter casing, ensuring its sealing and stability, and preventing inaccurate measurement caused by human disassembly or loosening.

[0003] The counter and the housing of a water meter are usually connected by a retaining ring to prevent the meter head from loosening or falling off due to water flow impact or external force. Some of these retaining rings have lead seals or special structures to prevent unauthorized disassembly or tampering with the readings.

[0004] In existing technologies, traditional retaining rings are prone to loosening due to instability, which significantly affects the accuracy of metering. Furthermore, a simple sealing ring is often added between the retaining ring and the meter casing for sealing, but over time, this sealing ring can break and loosen, leading to water leakage between the retaining ring and the meter casing, causing corrosion of internal parts. Ordinary retaining rings can be easily disassembled, posing a risk of water meter data tampering. Therefore, we urgently need a water meter retaining ring mechanism to solve these problems. Utility Model Content

[0005] The purpose of this utility model is to solve the problems of easy loosening, poor sealing, and easy disassembly of the retaining ring in the prior art, and to propose a water meter retaining ring mechanism.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A water meter retaining ring mechanism includes a ring body and a threaded cap threadedly connected to the ring body. The ring body is composed of two sets of semi-ring parts, which cooperate to form an annular space for connection with the meter casing. It also includes an annular plate installed on the semi-ring parts, with a plurality of first locking teeth installed on the annular plate and a plurality of second locking teeth installed on the threaded cap. When the threaded cap is threadedly connected to the ring body, the first locking teeth and the second locking teeth form a one-way meshing connection.

[0008] To improve self-locking stability, preferably, the number of the first locking teeth is at least two, and they are arranged at equal intervals along the circumference of the semi-ring.

[0009] In order to accommodate the first locking tooth, the number of the second locking teeth is further 4-6, which are arranged at equal intervals around the central axis of the threaded cap.

[0010] To improve the fit quality of the two semi-ring parts, preferably, a locking block is fixedly connected to the end of the semi-ring part, the locking block has a threaded hole, and a screw is threaded into the threaded hole.

[0011] To further improve the sealing effect, both sets of semi-ring components are provided with sealing gaskets extending toward the center of the ring.

[0012] To further enhance the seal, the sealing gasket is provided with a plurality of protrusions, which are circumferentially and equidistantly connected to the inner ring wall of the sealing gasket.

[0013] To further improve the anti-slip effect of the contact surface, anti-slip textures are provided on the raised arc surface.

[0014] To further reduce water seepage, the inner ring surface of the sealing gasket is provided with threaded grooves, and protrusions are distributed within the threaded grooves.

[0015] To further enhance its flexibility, the sealing gasket is made of silicone or rubber.

[0016] Compared with the prior art, the present invention provides a water meter retaining ring mechanism, which has the following beneficial effects:

[0017] 1. This water meter retaining ring mechanism, when two sets of semi-ring parts and threaded covers are fitted onto the connection point of the counter, when the two semi-ring parts cooperate to form a closed annular space, the ring body is assembled by connecting the screw and the threaded hole. At this time, the ring body is located on the counter. Then, the threaded cover is rotated to connect with the ring body. When the threaded cover is rotated clockwise, it is threaded onto the ring body. The second locking tooth does not engage with the first locking tooth. When rotation stops, the second locking tooth engages with the first locking tooth. At this time, when the threaded cover is rotated counterclockwise, the second locking tooth will self-lock with the first locking tooth. This improves the previous situation where it could be easily disassembled and also improves the stability of the retaining ring fixation.

[0018] 2. The water meter retaining ring mechanism connects the counter connection point to the meter housing connection point. Because the meter housing connection point has an external thread, when twisted downwards, the threaded groove on the sealing gasket will match the external thread, thereby embedding the external thread into the threaded groove and achieving a seal between the counter and the meter housing. After the connection is completed, the protrusion on the sealing gasket will release its elasticity as the movement stops, thereby improving the sealing effect.

[0019] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model improves the stability of the fixation, enhances the sealing effect, and solves the problem of easy disassembly in the past. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the overall structure of a water meter retaining ring mechanism proposed in this utility model;

[0021] Figure 2 This is a partial cross-sectional view of a water meter retaining ring mechanism proposed in this utility model.

[0022] Figure 3 This is a schematic diagram of the ring structure of a water meter retaining ring mechanism proposed in this utility model;

[0023] Figure 4 This is a schematic diagram of the threaded cover structure of a water meter retaining ring mechanism proposed in this utility model.

[0024] In the diagram: 1. Ring body; 2. Threaded cap; 4. Ring plate; 5. First locking tooth; 6. Second locking tooth; 7. Threaded hole; 8. Screw; 9. Sealing gasket; 10. Protrusion; 11. Threaded groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Example:

[0028] Reference Figures 1-4A water meter retaining ring mechanism includes a ring body 1 and a threaded cap 2 threadedly connected to the ring body 1. The ring body 1 consists of two sets of semi-ring parts, which cooperate to form an annular space for connection with the meter casing. The mechanism further includes an annular plate 4 mounted on the semi-ring parts, with a plurality of first locking teeth 5 mounted on the annular plate 4, and a plurality of second locking teeth 6 mounted on the threaded cap 2. When the threaded cap 2 is threadedly connected to the ring body 1, the first locking teeth 5 and the second locking teeth 6 form a one-way meshing connection. A locking mechanism is fixedly connected to the end of each semi-ring part. The locking block has a threaded hole 7, and a screw 8 is threaded into the threaded hole 7. Both sets of semi-ring parts have a sealing gasket 9 extending towards the center of the ring. The sealing gasket 9 has several protrusions 10, which are circumferentially and equidistantly connected to the inner ring wall of the sealing gasket 9. The arc surface of the protrusions 10 is provided with anti-slip texture. The inner ring surface of the sealing gasket 9 has a threaded groove 11, and the protrusions 10 are distributed in the threaded groove 11. When the threaded groove 11 is threaded into the threaded structure on the watch case, the sealing gasket 9 and the contact surface of the watch case form a sealing effect.

[0029] On the water meter casing, a connection point for the counter head is provided, and the connection point has external threads for connecting the counter. Two sets of semi-ring parts and threaded caps 2 are fitted onto the counter connection point. When the two semi-ring parts cooperate to form a closed annular space, the ring body 1 is assembled by connecting screws 8 and threaded holes 7. At this time, the ring body 1 is located on the counter, and the counter connection point is located in the middle of the ring body 1. Then, the counter connection point is connected to the casing connection point. Because the casing connection point has external threads, when twisted downwards, the threaded groove 11 on the sealing gasket 9 will match the external threads. This allows the external thread to be embedded in the threaded groove 11, achieving a seal between the counter and the watch case. After the connection is completed, the protrusion 10 on the sealing gasket 9 will release its elasticity as the movement stops, thereby improving the sealing effect. At this time, rotate the threaded cover 2 to connect it to the ring body 1. When the threaded cover 2 is rotated clockwise, it is threaded onto the ring body 1. The second locking tooth 6 does not engage with the first locking tooth 5. When the rotation stops, the second locking tooth 6 engages with the first locking tooth 5. At this time, rotating the threaded cover 2 counterclockwise will cause the second locking tooth 6 to self-lock with the first locking tooth 5, improving the previous situation where it could be easily disassembled and also improving the stability of the retaining ring.

[0030] When the threaded cap 2 is rotated clockwise, the second locking tooth 6 will not lock with the first locking tooth 5. The gentle slope of the first locking tooth 5 contacts the second locking tooth 6 and gradually slides into the groove. When rotated counterclockwise, the steep slope of the first locking tooth 5 forms mechanical interference with the edge of the second locking tooth 6. Forced rotation will cause the locking tooth to break or the retaining ring to deform.

[0031] The number of first locking teeth 5 is at least two, and they are equidistantly arranged along the circumference of the semi-ring. The number of second locking teeth 6 ranges from 4 to 6, and they are equidistantly arranged around the central axis of the threaded cap 2. The sealing gasket 9 is made of silicone or rubber.

[0032] In this invention, two sets of semi-ring parts and threaded caps 2 are fitted onto the connection point of the counter. When the two semi-ring parts cooperate to form a closed annular space, the assembly of the ring body 1 is completed by connecting the screw 8 with the threaded hole 7. At this time, the ring body 1 is located on the counter, and the counter connection point is located in the middle of the ring body 1. Then, the counter connection point is connected to the watch case connection point. Because the watch case connection point has an external thread, when it is twisted downwards, the threaded groove 11 on the sealing gasket 9 will match the external thread, thereby embedding the external thread into the threaded groove 11, achieving... The seal between the counter and the case is achieved by releasing the elasticity of the protrusion 10 on the sealing gasket 9 as the movement stops, thus improving the sealing effect. At this time, rotate the threaded cover 2 to connect it with the ring body 1. When the threaded cover 2 is rotated clockwise, it is threaded onto the ring body 1. The second locking tooth 6 does not engage with the first locking tooth 5. When the rotation stops, the second locking tooth 6 engages with the first locking tooth 5. At this time, rotating the threaded cover 2 counterclockwise will cause the second locking tooth 6 to self-lock with the first locking tooth 5, which improves the previous situation where it could be easily disassembled and also improves the stability of the retaining ring.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A water meter clasp mechanism comprising a ring body (1) and a threaded cover (2) screwed on the ring body (1), the ring body (1) being composed of two sets of half ring members which cooperate with each other to form a ring space for connecting with a meter housing, characterized in that, Also include: The annular plate (4) is installed on the half ring, and a plurality of first lock teeth (5) are installed on the annular plate (4); A plurality of second lock teeth (6) are installed on the threaded cover (2), and the first lock teeth (5) and the second lock teeth (6) form a one-way meshing connection when the threaded cover (2) is threadedly connected to the ring body (1).

2. A water meter clasp mechanism according to claim 1, wherein The number of the first lock teeth (5) is at least two, and they are arranged equidistantly along the circumferential direction of the half ring.

3. A water meter clasp mechanism according to claim 2, wherein The number of the second lock teeth (6) ranges from 4 to 6, and they are arranged equidistantly around the central axis of the threaded cover (2).

4. A water meter clasp mechanism according to claim 1, wherein The end of the half ring is fixedly connected with a locking block, and a threaded hole (7) is formed in the locking block, and a screw (8) is threadedly connected in the threaded hole (7).

5. A water meter clasp mechanism according to claim 1, wherein Two groups of half rings are provided with sealing pads (9) extending to the center of the ring.

6. A water meter clasp mechanism according to claim 5, wherein A plurality of protrusions (10) are arranged on the sealing pad (9), and the protrusions (10) are arranged equidistantly on the inner ring wall of the sealing pad (9).

7. A water meter clasp mechanism according to claim 6, wherein Anti-skid lines are arranged on the arc surface of the protrusions (10).

8. A water meter clasp mechanism according to claim 7, wherein Threaded grooves (11) are formed in the inner surface of the sealing pad (9), and the protrusions (10) are distributed in the threaded grooves (11).

9. A water meter clasp mechanism according to claim 8, wherein, The material of the sealing pad (9) is silica gel or rubber.

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