Impeller mechanism for intelligent water meter

Abstract

The utility model provides an impeller mechanism for an intelligent water meter, which comprises a wheel shaft, a plurality of linear blades are arranged on the wheel shaft, fixing ring plates positioned on two sides of the blades are arranged on the wheel shaft, and first supporting grooves for clamping and fixing radial side ends of the blades are respectively arranged at side ends of the two fixing ring plates. A second supporting groove used for clamping and fixing the axial side ends of the blades is further formed between the two fixing ring plates. According to the impeller mechanism used by the intelligent water meter, the basic requirements of bearing water flow impact and driving the counting pointer to rotate through gear transmission can be met, the blades can be effectively and sufficiently supported, sufficient deformation of the blades is avoided, and the service life of the blades is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of water meter technology, and specifically relates to an impeller mechanism used in smart water meters. Background Technology

[0002] The impeller of a water meter is a key component of a rotary vane water meter. While existing impeller mechanisms can meet the basic functions of withstanding water flow impact and driving the counting pointer through gear transmission, and can enhance blade stability by adding support structures at both ends of the blades, they only effectively support the ends and not the middle. This results in a tendency for deformation in the middle of the blades, thus failing to fully meet user needs.

[0003] For example, the utility model patent with announcement number CN222419166U discloses a stable impeller mechanism used in smart water meters. In the technical solution of this patent document, the blade is straight, and its two ends are fixedly connected to the upper bracket and the lower bracket 4 respectively, and are installed on the wheel axle. Although the upper bracket and the lower bracket can effectively support the blade and improve the stability of the blade, they can only support the two ends of the blade, and cannot effectively support the middle of the blade. Therefore, it is easy for the blade to deform in the middle. Utility Model Content

[0004] In view of this, this utility model addresses the shortcomings of the prior art by providing an impeller mechanism for use in smart water meters. This mechanism not only meets the basic requirements of withstanding water flow impact and driving the counting pointer to rotate through gear transmission, but also effectively supports the blades, preventing them from deforming and extending their service life.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an impeller mechanism for use in a smart water meter, including a wheel shaft, a plurality of straight blades arranged on the wheel shaft, and fixing ring plates located on both sides of the blades on the wheel shaft. The side ends of the two fixing ring plates are respectively provided with first support grooves for locking and fixing the radial side ends of the blades, and a second support groove for locking and fixing the axial side ends of the blades is also provided between the two fixing ring plates.

[0006] As a further improvement of this utility model, a snap-fit ​​block is provided on the axle located on the outside of the blade, and a snap-fit ​​sleeve is provided on the fixing ring plate that can pass through the side end of the axle and snap-fit ​​with the snap-fit ​​block.

[0007] As a further improvement of this utility model, the two ends of the second support groove are respectively provided with fixing blocks, and the side end of the fixing ring plate is provided with a support slot that engages with the fixing blocks.

[0008] As a further improvement of this utility model, a guide groove is also provided on the outer side wall of the snap-fit ​​block, and a guide plate is provided on the inner side wall of the snap-fit ​​sleeve to be snapped and fixed with the guide groove.

[0009] As a further improvement of this utility model, a reinforcing rib is also provided between the snap-fit ​​sleeve and the fixing ring plate.

[0010] As a further improvement of this utility model, a limit ring plate is also provided on the side end of the snap-fit ​​sleeve.

[0011] As a further improvement of this utility model, pins are provided at both ends of the axle, and multiple pin holes are provided on the pins, with the multiple pin holes on the same side being equally spaced.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] Firstly, by setting a fixed ring plate and a first and second support groove, the radial and axial ends of the blade can be fully supported, preventing the blade from deforming under the impact of water flow, thereby extending the service life of the blade.

[0014] Secondly, the design of the guide slot and guide plate further enhances the connection strength between the snap-fit ​​block and the snap-fit ​​sleeve, ensuring that it will not loosen during long-term use; and it allows workers to quickly and easily snap the snap-fit ​​sleeve and snap-fit ​​block together in the manner that the first support slot can snap together with the radial side end of the blade, and the two ends of the second support slot can snap together with the support slot, so as to avoid the snap-fit ​​installation of the first support slot with the radial side end of the blade and the second support slot with the fixed plate due to installation deviation.

[0015] Thirdly, the contact between the limiting ring plate and the snap-fit ​​block can prevent excessive axial displacement of the fixing ring plate from causing impact damage to the blades. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the snap-fit ​​block and its structure according to the present invention;

[0019] Figure 3 This is a structural schematic diagram of the fixing ring plate, the first support groove, and the support slot of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the second support groove and the fixing block of this utility model;

[0021] Figure 5 This is a structural schematic diagram of the guide plate, reinforcing rib plate, and limiting ring plate of this utility model.

[0022] In the diagram: 101, axle; 102, blade; 103, fixing ring plate; 104, first support groove; 105, second support groove; 106, snap-fit ​​block; 107, snap-fit ​​sleeve; 108, fixing snap-fit ​​block; 109, support snap-fit ​​groove; 201, guide snap-fit ​​groove; 202, guide snap-fit ​​plate; 203, reinforcing rib; 204, limiting ring plate; 205, pin shaft; 206, pin hole. Detailed Implementation

[0023] To better understand this utility model, the following embodiments further illustrate its content, but the scope of protection of this utility model is not limited to the embodiments described below. Numerous specific details are set forth in the following description to provide a more thorough understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without one or more of these details.

[0024] like Figure 1 As shown, an impeller mechanism used in a smart water meter includes a shaft (101), on which multiple straight blades (102) are arranged. The cross-sectional diameter of the part of the shaft (101) where the blades (102) are mounted is larger than the diameter of both ends. Fixing ring plates (103) are provided on both sides of the blades (102) on the shaft (101). The sides of the two fixing ring plates (103) are respectively provided with first support grooves (104) for engaging and fixing the radial sides of the blades (102). A second support groove (105) is also provided between the two fixing ring plates (103) for engaging and fixing the axial sides of the blades (102). Pins (205) are provided at both ends of the shaft (101). Multiple pin holes (206) are provided on the pins (205), with the pin holes (206) on the same side being evenly spaced.

[0025] like Figure 1 , 2 As shown, a snap-fit ​​block (106) is provided on the axle (101) and located outside the blade (102). A snap-fit ​​sleeve (107) is provided on the fixing ring plate (103) that can pass through the side end of the axle (101) and snap-fit ​​with the snap-fit ​​block (106).

[0026] like Figure 1 , 4 As shown, the two ends of the second support groove (105) are respectively provided with fixing blocks (108), and the side end of the fixing ring plate (103) is provided with a support groove (109) that engages with the fixing blocks (108).

[0027] First, the multiple second support grooves (105) are engaged and fixed with the axial side end of the blade (102). Then, the engaging sleeve (107) is engaged and connected with the engaging block (106), thereby fixing the fixing ring plate (103) to the side end of the wheel axle (101). The first support groove (104) is engaged and fixed with the radial side end of the blade (102), and the fixing block (108) is engaged with the support groove (109), thereby providing auxiliary fixation for both ends of the second support groove (105) to prevent the second support groove (105) from loosening or falling off relative to the blade (102).

[0028] Then the device can be installed in the water meter for use through the pin (205) and pin hole (206); through the fixing ring plate (103), the first support groove (104) and the second support groove (105), the radial and axial ends of the blade (102) can be fully supported, so as to avoid the blade (102) from deforming under the impact of water flow, thereby extending the service life of the blade (102).

[0029] According to another embodiment of the present invention, such as Figure 2 , 3 As shown in Figure 5, a guide groove (201) is also provided on the outer side wall of the snap-fit ​​block (106), and a guide plate (202) is provided on the inner side wall of the snap-fit ​​sleeve (107) to be snapped and fixed with the guide groove (201).

[0030] The design of the guide slot (201) and guide plate (202) further enhances the connection strength between the snap-fit ​​block (106) and the snap-fit ​​sleeve (107), ensuring that it will not loosen during long-term use; and it enables workers to quickly and easily snap the snap-fit ​​sleeve (107) and the snap-fit ​​block (106) together in the manner that the first support slot (104) can be snapped together with the radial side end of the blade (102) and the two ends of the second support slot (105) can be snapped and fixed with the support slot (109), so that the snap-fit ​​sleeve (107) and the snap-fit ​​block (106) can be snapped together. This avoids the impact of installation deviation on the snap-fit ​​installation of the first support slot (104) with the radial side end of the blade (102) and the second support slot (105) with the fixed plate, thus improving the convenience, efficiency and accuracy of installation.

[0031] According to another embodiment of the present invention, such as Figure 5 As shown, a reinforcing rib (203) is also provided between the snap-fit ​​sleeve (107) and the fixing ring plate (103). The reinforcing rib (203) can enhance the firmness between the snap-fit ​​sleeve (107) and the fixing ring plate (103).

[0032] According to another embodiment of the present invention, such as Figure 3 , 5As shown, a limiting ring plate (204) is also provided on the side end of the snap-fit ​​sleeve (107). When the snap-fit ​​sleeve (107) and the snap-fit ​​block (106) are snapped together, the limiting ring plate (204) can abut against the side end of the snap-fit ​​block (106), thereby preventing the fixing ring plate (103) from having excessive axial displacement and causing impact damage to the blade (102).

[0033] The above are preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. An impeller mechanism used in a smart water meter, comprising a wheel shaft (101), characterized in that: The axle (101) is provided with a plurality of straight blades (102), and the axle (101) is provided with fixing ring plates (103) located on both sides of the blades (102). The two fixing ring plates (103) are respectively provided with a first support groove (104) for engaging and fixing the radial side of the blades (102), and a second support groove (105) for engaging and fixing the axial side of the blades (102) is also provided between the two fixing ring plates (103).

2. The impeller mechanism used in the smart water meter as described in claim 1, characterized in that: The axle (101) is provided with a snap-fit ​​block (106) located outside the blade (102), and the fixing ring plate (103) is provided with a snap-fit ​​sleeve (107) that can pass through the side end of the axle (101) and snap-fit ​​with the snap-fit ​​block (106).

3. The impeller mechanism used in the smart water meter as described in claim 2, characterized in that: The second support groove (105) is provided with a fixing block (108) at both ends, and the side end of the fixing ring plate (103) is provided with a support groove (109) that engages with the fixing block (108).

4. The impeller mechanism used in the smart water meter as described in claim 3, characterized in that: The outer side wall of the snap-fit ​​block (106) is also provided with a guide slot (201), and the inner side wall of the snap-fit ​​sleeve (107) is provided with a guide plate (202) that is snapped and fixed to the guide slot (201).

5. The impeller mechanism used in the smart water meter as described in claim 4, characterized in that: A reinforcing rib (203) is also provided between the snap-fit ​​sleeve (107) and the fixing ring plate (103).

6. The impeller mechanism used in the smart water meter as described in claim 5, characterized in that: The side end of the snap-fit ​​sleeve (107) is also provided with a limiting ring plate (204).

7. The impeller mechanism used in the smart water meter as described in claim 6, characterized in that: The axle (101) is provided with pins (205) at both ends, and multiple pin holes (206) are provided on the pins (205), with the multiple pin holes (206) on the same side being equally spaced.

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