Ball valve sealing device capable of maintaining life water

Abstract

The utility model relates to a ball valve sealing device capable of maintaining life water, which comprises a ball valve body and ball valve sealing rings attached to two ends of the ball valve body, a water through hole is arranged on the ball valve body, a small through hole is arranged on the ball valve body, the small through hole penetrates through the ball valve body along the radial direction of the water through hole, and the ball valve sealing rings are arranged on the ball valve body. According to the prepaid water meter ball valve sealing structure, an existing prepaid water meter ball valve sealing structure is improved, so that the accuracy of prepaid metering can be guaranteed, and when residents cannot pay water fees in advance due to diseases at once, the ball valve is in a cut-off state, the ball valve sealing structure can be used for sealing the prepaid water meter ball valve, and the prepaid water meter ball valve sealing structure is convenient to use. According to the water meter capable of maintaining life water, water flow can be guaranteed to pass through, and therefore limited life necessary water can be provided, tragedies caused by the fact that water fee is not prepaid in time are fundamentally avoided, and along with aggravation of aging in China, the water meter capable of maintaining life water will certainly be favored, popularized and applied.

Description

Technical Field

[0001] The utility model relates to the technical field of water meters, in particular to a ball valve sealing device capable of maintaining life-saving water. Background Art

[0002] A water meter is a device that measures the water consumption of residential residents. The water meter is generally switched on and off by rotating a ball valve body at the center. The two ends of the ball valve body are sealed by ball valve sealing rings that fit on the spherical surface. When the water hole in the center of the ball valve body rotates to correspond to the inner hole of the ball valve sealing ring, the water meter opens; when the water hole and the inner hole of the ball valve sealing ring are misaligned, the water meter closes.

[0003] The traditional way for residents to use water is to use it first and pay for it later. However, some individual users do not pay for water in time after use, which causes disputes between water companies and water users. For this reason, the water meter manufacturing industry has launched smart water meters and realized a prepaid smart water platform, which fundamentally solves the aforementioned problems. However, it was also discovered that some lonely, single and elderly residents were unable to prepay their water bills in time due to illness and other reasons, resulting in water supply being stopped and endangering their lives. This is obviously not in line with the people-oriented development concept and should not happen in today's society. Utility Model Content

[0004] The utility model aims at the deficiencies of the prior art and provides a ball valve sealing device capable of maintaining life-saving water.

[0005] The utility model is realized through the following technical scheme, and provides a ball valve sealing device capable of maintaining life-saving water, comprising a ball valve body and a ball valve sealing ring attached to both ends of the ball valve body, the ball valve body is provided with a water through hole, the ball valve body is provided with a small through hole, and the small through hole penetrates the ball valve body along the radial direction of the water through hole.

[0006] The present invention has a water hole on the ball valve body, which can ensure the passage of a small amount of water even when the ball valve is in the cut-off state, thereby fundamentally preventing elderly people living alone from obtaining life-sustaining water when the ball valve is closed due to an accident and they are unable to pay the water fee in advance.

[0007] As an optimization, the small through hole passes through the center of the ball valve body and is perpendicular to the water through hole, so as to ensure that when the ball valve is in the cut-off state, the small through hole is concentrically connected with the ball valve sealing rings at both ends.

[0008] As an optimization, the small through hole is a circular hole, a rectangular hole, a triangular hole or a hole with a special cross section. In this solution, the shape of the small through hole is limited to ensure its function while facilitating processing.

[0009] As an optimization, the inner hole of the ball valve sealing ring is provided with a groove connecting the two sides of the ball valve sealing ring. In this solution, a groove is provided in the inner hole of the ball valve sealing ring. When the ball valve is in the cut-off state, the groove allows a small amount of water to flow through the two sides of the ball valve sealing ring. By providing grooves on both ball valve sealing rings, the ball valve can allow a certain amount of water to flow through.

[0010] As an optimization, the ball valve sealing ring is provided with two grooves which are symmetrically arranged to prevent a single groove from being blocked and water from being unable to pass through.

[0011] As an optimization, the cross section of the groove is circular, rectangular, triangular or special-shaped. In this solution, the shape of the groove is limited to ensure its function while facilitating processing.

[0012] As an optimization, a flow groove is provided on the spherical surface of the ball valve body, and the flow groove connects the two ends of the water through hole.

[0013] The beneficial effects of the utility model are as follows: the utility model is a ball valve sealing device capable of maintaining life-saving water, which improves the existing prepaid water meter ball valve sealing structure, so that it can not only ensure the accuracy of prepaid metering, but also provide limited life-saving water when residents are temporarily unable to prepay water bills due to illness, thereby fundamentally avoiding the tragedy caused by the temporary lack of prepaid water bills. With the aggravation of the aging population in my country, this water meter capable of maintaining life-saving water will surely be favored and promoted. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an explosion diagram of the utility model;

[0015] Figure 2 This is a front perspective view of a ball valve body according to Embodiment 1 of the present utility model;

[0016] Figure 3 It is a side view of the ball valve body of Example 1 of the utility model;

[0017] Figure 4 This is a three-dimensional perspective view of a ball valve body according to Embodiment 1 of the present utility model;

[0018] Figure 5 It is a front perspective view of a ball valve body of Embodiment 3 of the present utility model;

[0019] Figure 6 It is a three-dimensional perspective view of a ball valve body according to Embodiment 3 of the present utility model;

[0020] Figure 7 This is a front perspective view of the sealing ring of the ball valve of the utility model;

[0021] Figure 8 It is a three-dimensional perspective view of the sealing ring of the ball valve of the utility model;

[0022] Fig. 9 It is a side view of the sealing ring of the ball valve of the utility model;

[0023] As shown in the figure:

[0024] 1. Water meter body, 2. Ball valve stem, 3. Water meter valve control end, 4. O-ring, 5. Ball valve sealing ring, 51. Groove, 6. Ball valve body, 61. Water hole, 62. Small through hole, 63. Flow groove. DETAILED DESCRIPTION

[0025] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0026] Embodiment 1:

[0027] like Figures 1 to 9 As shown, a ball valve sealing device capable of maintaining life-saving water of the utility model comprises a ball valve body 6 and a ball valve sealing ring 5 attached to both ends of the ball valve body 6. Figure 1 As shown, the ball valve body 6 is connected to the water meter housing 1 by rotating along the vertical rotating shaft, and a slot is provided at the upper end of the ball valve body 6. The ball valve stem 2 is inserted into the slot. The ball valve body 6 is driven to rotate by the rotation of the ball valve stem 2. A water hole 61 is provided on the ball valve body 6. When the ball valve body 6 rotates so that the two ends of the water hole 61 are respectively located in the two ball valve sealing rings 5, the ball valve is opened. When the water hole 61 rotates to be misaligned with the ball valve sealing ring 5, the ball valve is closed.

[0028] A water meter valve control end 3 is mounted on one end of the water meter housing, and an O-type sealing ring 4 is mounted on the side of the ball valve sealing ring 5 away from the ball valve body 6, thereby improving the sealing effect.

[0029] In order to ensure that a small amount of water can pass through in the cut-off state and to facilitate the control of the water flow, a small through hole 62 is opened on the ball valve body 6, and the small through hole 62 radially penetrates the ball valve body 6 along the water through hole 61. In this embodiment, the small through hole 62 passes through the center of the ball valve body 6 and is perpendicular to the water through hole 61.

[0030] The small through hole 62 is a circular hole, a rectangular hole, a triangular hole or other holes with special cross-sections.

[0031] In this embodiment, the diameter of the small through hole 62 is calculated as a circular hole, and the amount of water for maintaining life ( ), generally 0.02-0.05m³ / h; inlet and outlet pressure difference , considering that the through-hole 62 is an elongated hole, the flow rate is calculated as follows:

[0032]

[0033] in:

[0034]

[0035]

[0036]

[0037] Typically, These are all known quantities. After sorting, we can get the required opening radius for opening a circular hole: .

[0038] Embodiment 2:

[0039] The inner hole of the ball valve sealing ring 5 is provided with a groove 51 connecting the two sides of the ball valve sealing ring 5. The groove 51 is arranged along the inner hole of the ball valve sealing ring 5 and extends radially along the ball valve sealing ring 5. In this embodiment, the ball valve sealing ring 5 is provided with two grooves 51 and are symmetrically arranged.

[0040] The cross section of the groove 51 is circular, rectangular or triangular. Calculation is based on the cross section of the groove 51 being circular:

[0041] Life-sustaining water consumption ( ), generally 0.02-0.05m³ / h; inlet and outlet pressure difference , considering that the groove flow section is a thin-walled small hole, the flow calculation flow is as follows:

[0042]

[0043] in: , obtained by experiment, generally 0.61-0.62

[0044]

[0045]

[0046] in is the required known quantity, and considering , the radius of the groove 51 that needs to be opened is: .

[0047] Embodiment 3:

[0048] A flow groove 63 is provided on the spherical surface of the ball valve body, and the flow groove 63 connects the two ends of the water hole 61. In this embodiment, two flow grooves 63 are provided. When the ball valve is in the cut-off state, the two sides of the ball valve sealing ring 5 are connected through the flow grooves 63.

[0049] The cross section of the flow channel is calculated as a circle, and the flow cross section and flow area of ​​the flow channel are determined as follows: the amount of water required to maintain life ( ), generally 0.02-0.05m³ / h; inlet and outlet pressure difference , considering that the flow section of the flow slot is a thin-walled small hole, the flow calculation flow is as follows:

[0050]

[0051] in: , obtained by experiment, generally 0.61-0.62

[0052]

[0053]

[0054] in is the required known quantity, and considering , the radius of the small hole that needs to be opened for sorting is: .

[0055] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved by or by adopting the existing technology, which will not be repeated here. The above embodiments and drawings are only used to illustrate the technical scheme of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not deviate from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.

Claims

1. A ball valve sealing device capable of sustaining life-saving water, comprising a ball valve body (6) and a ball valve sealing ring (5) attached to both ends of the ball valve body (6), wherein the ball valve body (6) is provided with a water through hole (61), characterized in that: The ball valve body (6) is provided with a small through hole (62), the small through hole (62) radially penetrating the ball valve body (6) along the water through hole (61), and the inner hole of the ball valve sealing ring (5) is provided with a groove (51) connecting the two sides of the ball valve sealing ring (5).

2. A ball valve sealing device for life-sustaining water according to claim 1, characterized in that: The small through hole (62) passes through the center of the ball valve body (6) and is perpendicular to the water through hole (61).

3. A ball valve sealing device for life-sustaining water according to claim 1, characterized in that: The small through hole (62) is a circular hole, a rectangular hole, a triangular hole or a hole with a special cross section.

4. A ball valve sealing device for life-sustaining water according to claim 1, characterized in that: The ball valve sealing ring (5) is provided with two grooves (51).

5. A ball valve sealing device for life-sustaining water according to claim 1, characterized in that: The cross section of the groove (51) is circular, rectangular or triangular.

6. A ball valve sealing device for life-sustaining water according to claim 1, characterized in that: A flow groove (63) is provided on the outer spherical surface of the ball valve body (6), and the flow groove (63) is connected to both ends of the water through hole (61).

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