Anti-reversion movement assembly

Abstract

The utility model provides an anti-reversion machine core assembly which comprises a counter assembly, an impeller assembly, an impeller box and a filter screen in sequence from top to bottom, an anti-reversion ring is arranged at the bottom of the counter assembly, the anti-reversion ring comprises a ring body, a rotating shaft, calipers and a spring, the ring body is annular, a through hole is formed in the center of the ring body, the rotating shaft is fixed on the ring body, and the calipers are fixed on the ring body. One end of the caliper is rotatably connected with the rotating shaft, one side of the other end of the caliper close to the through hole is provided with a limiting hook, one side far away from the through hole is connected with one end of a spring, and the other end of the spring is fixed on the ring body; and a ratchet wheel is arranged on the impeller assembly and penetrates through the through hole of the ring body to be in contact with the calipers. According to the utility model, the ratchet wheel is designed on the impeller assembly, the anti-reversion ring provided with the calipers and the spring is additionally arranged, and the impeller assembly cannot be reversed through the matching among the ratchet wheel, the calipers and the spring, so that the anti-reversion function of the water meter is realized, and the influence on the water metering caused by the influence on the reading of the water meter and the electronic reading is avoided.

Description

Technical Field

[0001] The utility model relates to the field of water meters, in particular to an anti-reversal movement assembly. Background Art

[0002] With the continuous advancement of science and technology, the application and popularization of new technologies have made life more intelligent. The previous mechanical water meters have also been replaced by intelligent water meters; the mechanical signals are converted into electronic signals, making the remote transmission or remote side reading of data a display, and the water meters are intelligent. Moreover, computers can process, summarize and organize the data, and manage the water meters in a systematic way.

[0003] In daily use, when the faucet is turned off, due to the influence of the water hammer effect, the water flow will have a certain degree of backflow. If no measures are taken, the impeller will reverse, which will affect the water meter readings and electronic readings, and affect the measurement of water consumption. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The purpose of the utility model is to provide an anti-reversal movement assembly with an anti-reversal function. To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] (II) Technical solution

[0007] An anti-reversal movement assembly comprises, from top to bottom, a counter assembly, an impeller assembly, an impeller box and a filter screen. An anti-reversal ring is provided at the bottom of the counter assembly. The anti-reversal ring comprises a ring body, a rotating shaft, a caliper and a spring. The ring body is annular and has a through hole at the center. The rotating shaft is fixed to the ring body. One end of the caliper is rotatably connected to the rotating shaft. A limiting hook is provided on the side of the other end of the caliper close to the through hole and is connected to one end of the spring on the side away from the through hole. The other end of the spring is fixed to the ring body. A ratchet is provided on the impeller assembly. The ratchet passes through the through hole of the ring body and contacts the caliper.

[0008] Furthermore, the impeller assembly includes an upper impeller and a lower impeller, the bottom of the upper impeller is inserted into the top of the lower impeller and is limited by a limiting groove, and the ratchet is arranged on the top of the lower impeller.

[0009] Furthermore, the caliper and the spring are located at the bottom of the ring body.

[0010] Furthermore, at least two positioning holes are formed on the ring body, and a corresponding number of positioning pins are provided at the bottom of the counter assembly, and the positioning holes and the positioning pins cooperate with each other.

[0011] (III) Beneficial effects

[0012] Compared with the prior art, the utility model has obvious advantages and beneficial effects, specifically:

[0013] 1. Design a ratchet on the impeller assembly, and add an anti-reversal ring with a caliper and a spring. Through the cooperation between the ratchet, the caliper and the spring, the impeller assembly cannot be reversed, thereby realizing the anti-reversal function of the water meter, avoiding affecting the water meter reading and electronic reading and affecting the water measurement.

[0014] 2. The impeller assembly is designed as an upper impeller and a lower impeller, and the ratchet is set on the top of the lower impeller, which is convenient for the molding of the ratchet, reduces the difficulty of parts production, improves production efficiency, and does not affect the top of the upper impeller extending into the counter assembly to drive the counter to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the embodiments with reference to the accompanying drawings.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is an exploded view of the utility model;

[0018] Figure 3 It is a schematic diagram of the ring structure;

[0019] Figure 4 Exploded view of the impeller assembly;

[0020] Figure 5 It is a schematic diagram of the anti-reversal principle.

[0021] Description of Figure Numbers:

[0022] 1. Counter assembly; 2. Anti-reversal ring; 21. Ring body;

[0023] 22. Rotating shaft; 23. Caliper; 24. Spring;

[0024] 3. Impeller assembly; 31. Upper impeller; 32. Lower impeller;

[0025] 33. Ratchet; 4. Impeller box; 5. Filter. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0027] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0031] See also Figures 1 to 5 As shown, an anti-reversal movement assembly includes, from top to bottom, a counter assembly 1, an anti-reversal ring 2, an impeller assembly 3, an impeller box 4 and a filter 5, wherein:

[0032] The anti-reversal ring 2 is arranged at the bottom of the counter assembly 1, and includes a ring body 21, a rotating shaft 22, a caliper 23 and a spring 24. Specifically, as Figure 3 As shown, the ring body 21 is annular, with a through hole in the center, the shaft 22 is fixed on the ring body 21, one end of the caliper 23 is rotatably connected to the shaft 22, the other end of the caliper 23 is provided with a limit hook on the side close to the through hole, and the side away from the through hole is connected to one end of the spring 24, and the other end of the spring 24 is fixed on the ring body 21; correspondingly, as Figure 2 The impeller assembly 3 is provided with a ratchet 33 , which passes through the through hole of the ring body 21 and contacts the caliper 23 .

[0033] Through the above technical solution, such as Figure 5When the water flows forward, the impeller drives the ratchet 33 to rotate clockwise. At this time, the ratchet 33 and the caliper 23 will not restrict each other, and the water meter can operate normally; when the water flows backward, the impeller wants to drive the ratchet 33 to rotate counterclockwise. At this time, due to the tooth design of the ratchet 33 and the spring 24, the caliper 23 will tightly fit the ratchet 33. Therefore, the caliper 23 will prevent the ratchet 33 from rotating counterclockwise, thereby preventing the impeller from reversing, thereby realizing the anti-backflow function and avoiding affecting the water meter reading and electronic reading and affecting the measurement of water volume.

[0034] It is worth mentioning that, since the top of the impeller assembly 3 needs to extend into the counter assembly 1 to drive the counter to rotate, the ratchet 33 needs to be arranged in the middle and upper part of the impeller assembly 3. The formation of the ratchet 33 is somewhat difficult. Figure 4 The impeller assembly 3 is divided into an upper impeller 31 and a lower impeller 32. The bottom of the upper impeller 31 is inserted into the top of the lower impeller 32 and is limited by the limiting groove. The ratchet 33 is arranged on the top of the lower impeller 32. By separately producing the upper impeller 31 and the lower impeller 32, the formation of the ratchet 33 is facilitated, the difficulty of parts production is reduced, and the production efficiency is improved.

[0035] It is understandable that if Figure 2 , the caliper 23 and the spring 24 are arranged at the bottom of the ring body 21 , so as to maintain the flatness of the top of the anti-reversal ring 2 , thereby facilitating its installation at the bottom of the counter assembly 1 .

[0036] Furthermore, at least two positioning holes are formed on the ring body 21 , and a corresponding number of positioning pins are provided at the bottom of the counter assembly 1 . The anti-reversal ring 2 is fixed to the bottom of the counter assembly 1 through the cooperation of the positioning holes and the positioning pins.

[0037] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An anti-reversal movement assembly, comprising, from top to bottom, a counter assembly (1), an impeller assembly (3), an impeller box (4) and a filter screen (5), characterized in that: An anti-reversal ring (2) is provided at the bottom of the counter assembly (1), and the anti-reversal ring (2) includes a ring body (21), a rotating shaft (22), a caliper (23) and a spring (24). The ring body (21) is annular and has a through hole at its center. The rotating shaft (22) is fixed on the ring body (21). One end of the caliper (23) is rotatably connected to the rotating shaft (22). A limiting hook is provided on the other end of the caliper (23) close to the through hole, and the side away from the through hole is connected to one end of the spring (24). The other end of the spring (24) is fixed on the ring body (21). A ratchet (33) is provided on the impeller assembly (3), and the ratchet (33) passes through the through hole of the ring body (21) and contacts the caliper (23).

2. The anti-reversal movement assembly according to claim 1, characterized in that: The impeller assembly (3) comprises an upper impeller (31) and a lower impeller (32); the bottom of the upper impeller (31) is inserted into the top of the lower impeller (32) and is limited by a limiting groove; and the ratchet (33) is arranged on the top of the lower impeller (32).

3. The anti-reversal movement assembly according to claim 1, characterized in that: The caliper (23) and the spring (24) are located at the bottom of the ring body (21).

4. The anti-reversal movement assembly according to claim 1, characterized in that: At least two positioning holes are formed on the ring body (21), and a corresponding number of positioning pins are provided at the bottom of the counter assembly (1), and the positioning holes and the positioning pins cooperate with each other.

Images