Simple mechanical seal for water pump

Abstract

The utility model discloses a simple mechanical seal for a water pump, which belongs to the technical field of mechanical seals, comprises a static ring and a moving ring, and is characterized in that a connector is arranged on one side, far away from the static ring, of the moving ring, and a driving shifting plate and a driver are arranged on one side, close to the moving ring, of the connector; a spring is arranged between the interior of the connector and the driver, driven shifting plates and folded plates are arranged on the edge of the driver, the driven shifting plates and the driving shifting plates are arranged alternately, the folded plates are connected with the movable ring in a sleeved mode, and the movable ring is hexagonal. And the structure of the mechanical seal is simplified.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical seal technical field, concretely is a simple mechanical seal for water pump. BACKGROUND

[0002] Water pump is the commonly used equipment in industrial and agricultural activities, in its working process, the rotating shaft drives the impeller to rotate, and then guides the water to enter and exit through the internal and external pressure difference, until the whole delivery work is completed, in order to avoid water into the electrical part of the water pump, the rotating shaft specific position and the water pump must be provided with mechanical seal, the mechanical seal reaches the expected sealing effect through the dynamic fitting and relative rotation of the dynamic ring and static ring, the dynamic fitting of the dynamic ring and static ring is realized through the spring kept in the compressed state, the spring both ends are respectively provided with sheet metal structure, is connected with the rotating shaft, dynamic ring respectively, the rotating shaft end drives the dynamic ring end, to realize transmission, with the development of technology and design, the mechanical seal also updates with the different application scenes, for example, to ensure that the sheet metal structure stably drives the dynamic ring, the technical personnel make the dynamic ring end sheet metal structure center position to the dynamic ring 'full package', the edge is provided with the driven structure, whether the recess of the center position realizes 'full package' or the driven structure added at the edge, invisibly increases the complexity of the mechanical seal, when mass production, the simplification improvement is obviously can save a lot of cost, based on this situation, how to realize the stable transmission to the dynamic ring and simplify the structure of the mechanical seal, more and more become the problem that the relevant technical personnel urgently need to solve. SUMMARY

[0003] In order to solve the above technical problems, the utility model provides a simple mechanical seal for water pump.

[0004] A simple mechanical seal for water pump, including static ring, dynamic ring, its characterized in that: the dynamic ring is provided with a connector on the side away from the static ring, the connector is provided with a driving plate and a transmission device on the side close to the dynamic ring, a spring is arranged between the inside of the connector and the transmission device, a passive plate and a folding plate are arranged on the edge of the transmission device, the passive plate is arranged alternately with the driving plate, and the folding plate is sleeved with the dynamic ring.

[0005] Further, the shape of the dynamic ring is hexagonal.

[0006] Further, the number of the driving plate, the passive plate and the folding plate is three groups, the driving plate, the passive plate and the folding plate are arranged in annular array, and the distance between the passive plate and the adjacent folding plate is equal.

[0007] Further, the static ring is provided with an outer convex part on the side away from the dynamic ring, an outer sealing ring is sleeved on the periphery of the outer convex part, the dynamic ring is provided with an inner recess on the side away from the static ring, and an inner sealing ring is arranged in the inner recess.

[0008] Further, the connector is internally provided with a gasket, which is attached to the spring and the connector.

[0009] Further, a connecting hole is arranged at the center of the connector, and a through hole is arranged at the center of the transmission device, the movable ring and the static ring.

[0010] The simple mechanical seal for the water pump has the following advantages:

[0011] 1. The passive push plate and the folding plate are arranged in a ring array, and the distance between the passive push plate and the adjacent folding plate is equal, which, in combination with the sleeve connection of the folding plate and the movable ring, effectively ensures the stable "wrapping" of the transmission device on the movable ring.

[0012] 2. The spring makes the dynamic attachment of the movable ring and the static ring, and in combination with the sealing of the inner sealing ring on the position of the rotating shaft passing through the movable ring, the sealing effect of the mechanical seal is effectively ensured. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, but is not a limitation on the protection scope of the present application.

[0014] Figure 1 It is an exploded structural schematic view (one) of the present application.

[0015] Figure 2 It is an exploded structural schematic view (two) of the present application.

[0016] Figure 3 It is a schematic view of the overall structure of the present application.

[0017] Among them, 1-outer sealing ring, 2-static ring, 3-movable ring, 4-inner sealing ring, 5-transmission device, 6-spring, 7-gasket, 8-connector, 9-outer convex part, 10-connecting hole, 11-active push plate, 12-folding plate, 13-inner recess, 14-passive push plate. DETAILED DESCRIPTION

[0018] In order to make the description clearer, the present application will be further described in combination with the drawings of the specification.

[0019] A simple mechanical seal for water pump, comprising a static ring 2, a dynamic ring 3, characterized in that: the dynamic ring 3 is provided with a connector 8 away from the static ring 2, the connector 8 is provided with a driving plate 11 and a transmission device 5 near the dynamic ring 3, the spring 6 is arranged between the inside of the connector 8 and the transmission device 5, the passive plate 14 and the folding plate 12 are arranged on the edge of the transmission device 5, the passive plate 14 is arranged between the driving plate 11 and the folding plate 12, and the folding plate 12 is sleeved with the dynamic ring 3.

[0020] Further, the shape of the dynamic ring 3 is hexagonal.

[0021] Further, the number of the driving plate 11, the passive plate 14 and the folding plate 12 is three groups, the driving plate 11, the passive plate 14 and the folding plate 12 are arranged in annular array, and the interval between the passive plate 14 and the adjacent folding plate 12 is equal.

[0022] Further, the static ring 2 is provided with an outer convex part 9 away from the dynamic ring 3, the outer convex part 9 is provided with an outer sealing ring 1, the dynamic ring 3 is provided with an inner recessed part 13 away from the static ring 2, and the inner recessed part 13 is provided with an inner sealing ring 4.

[0023] Further, the connector 8 is provided with a gasket 7, and the gasket 7 is attached to the spring 6 and the connector 8.

[0024] Further, the connector 8 is provided with a connecting hole 10 at the center position, and the transmission device 5, the dynamic ring 3 and the static ring 2 are provided with through holes at the center positions.

[0025] The working principle of the simple mechanical seal for water pump is as follows: the connector 8 corresponds to the shaft end metal structure mentioned in the background technology, the transmission device 5 corresponds to the dynamic ring end metal structure mentioned in the background technology, the static ring 2 is fixedly installed at a specified position of the water pump, the connector 8 is fixedly installed at a specified position of the water pump shaft through the connecting hole 10, the water pump shaft passes through the gasket 7, the spring 6, the transmission device 5, the inner sealing ring 4, the dynamic ring 3 and the static ring 2, at this time, the spring 6 is in a compressed state, the dynamic ring 3 and the static ring 2 always keep attached, the inner sealing ring 4 is attached to the water pump shaft, the water pump is started, the water pump shaft drives the connector 8 to rotate, the driving plate 11 drives the passive plate 14, the folding plate 12 is sleeved with the dynamic ring 3, the dynamic ring 3 rotates synchronously with the transmission device 5, the dynamic ring 3 and the static ring 2 are attached and relatively rotate at the same time, and the sealing effect of the inner sealing ring 4 is added, so that water cannot enter the side of the water pump electrical part where the static ring 2 is located, and the expected sealing effect can be achieved.

[0026] The above merely illustrates the specific implementation of the present application, but the protection scope of the present application is not limited to this, any change or replacement without creative labor should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be limited by the protection scope defined in the claims.

Claims

1. A simple mechanical seal for a water pump comprising a stationary ring, a rotating ring, characterized in that: The connector is arranged on the side of the moving ring away from the static ring, the connector is arranged with a driving dial plate and a transmission device near the side of the moving ring, a spring is arranged between the inside of the connector and the transmission device, the edge of the transmission device is arranged with a driven dial plate and a folded plate, the driven dial plate is arranged alternately with the driving dial plate, and the folded plate is sleeved with the moving ring.

2. A simple mechanical seal for a water pump according to claim 1, characterized in that, The shape of the moving ring is a hexagon.

3. A simple mechanical seal for a water pump according to claim 1, wherein The number of the driving dial plate, the driven dial plate and the folded plate is three groups, the driving dial plate, the driven dial plate and the folded plate are arranged in a ring array, and the interval between the driven dial plate and the adjacent folded plate is equal.

4. A simple mechanical seal for a water pump according to claim 1, wherein The static ring is arranged with an outer convex part on the side away from the moving ring, the outer periphery of the outer convex part is sleeved with an outer sealing ring, the moving ring is arranged with an inner recessed part on the side away from the static ring, and the inner recessed part is arranged with an inner sealing ring.

5. A simple mechanical seal for a water pump according to claim 1, wherein The inside of the connector is arranged with a gasket, and the gasket is attached to the spring and the connector.

6. A simple mechanical seal for a water pump according to claim 1, wherein A connecting hole is arranged through the center position of the connector, and a through hole is arranged through the center position of the transmission device, the moving ring and the static ring.

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