Sealing ring for pump

Abstract

The utility model relates to the technical field of sealing rings, in particular to a sealing ring for a pump, which comprises a sealing circular ring, an accumulation sealing ring, a flow guide channel and a sealing ring. An accumulation sealing ring is arranged at the upper end of the annular outer portion of the sealing ring, double-layer annular blocking pieces are arranged on the accumulation sealing ring, the outer-layer blocking pieces are higher than the inner-layer blocking pieces, at least one flow guide channel is formed in the annular inner portion of the sealing ring, and an inlet of the flow guide channel is located outside the sealing ring and located between the double-layer annular blocking pieces of the accumulation sealing ring. A diversion channel outlet is located at the lower end of the annular inner wall of the sealing ring. When the water pump works, liquid permeating into the annular exterior of the sealing ring flows into the accumulation sealing ring, particulate matter in the liquid is deposited between the double-layer annular blocking pieces of the accumulation sealing ring, and the liquid flows into the inlet of the flow guide channel and flows out of the outlet of the flow guide channel. The sealing ring for the pump solves the technical problems that the sealing ring for the pump has a long-time sealing effect and is easy to disassemble, assemble and replace.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing rings, in particular to a sealing ring for a pump. Background Art

[0002] The pump sealing ring is a sealing device used to prevent the fluid in the pump from leaking into the external environment and to prevent external impurities from entering the pump. The sealing ring is usually fitted with a sealing ring or a sealing gasket. However, when the water pump is working, particles, mud, etc. carried in the water flow will continuously impact the sealing ring and the sealing connection of the water pump, causing the sealing ring to become increasingly ineffective.

[0003] The Chinese utility model patent with the name of "A new type of pump sealing ring" and the publication number of CN215566827U, which has been published, includes the following components: a workbench as the installation and fixing base of the sealing ring, a housing as the supporting component of the sealing ring, and an inner diameter of the housing to evenly distribute the buffer spring. The outer side of the rubber sealing ring has a limiting groove for installation and fixing inside the housing. One end of the buffer spring is connected to the housing, and the other end is connected to the limiting block, which limits the rubber sealing ring inside the housing. The through groove is arranged inside the housing to facilitate the installation and fixing of the rubber sealing ring. The clamping block is arranged at the bottom of the rubber sealing ring, which can interact with the corresponding structure of the workbench to fix the rubber sealing ring in the correct position. The action groove is arranged inside the rubber sealing ring to assist the liquid to circulate better. The device can assist the rubber sealing ring to be installed and positioned better and improve the sealing performance by providing the clamping block and the limiting groove. At the same time, the setting of the through groove and the action groove is conducive to the circulation of the liquid and optimizes the working efficiency of the pump. However, the internal structure of the device is complex, the replacement is difficult, and the practicality is not high. Utility Model Content

[0004] The purpose of the present application is to provide a sealing ring for a pump, which solves the technical problem that the sealing ring for a pump can maintain a sealing effect for a long time and can be easily disassembled, assembled and replaced.

[0005] In order to solve the above technical problems, the solution adopted by this application is as follows:

[0006] The utility model provides a sealing ring for a pump, comprising a sealing circular ring, a retention sealing ring, a flow guide channel and a sealing ring.

[0007] Preferably, a retention sealing ring is provided at the upper end of the annular outer portion of the sealing ring, a double-layer annular baffle is provided on the retention sealing ring, the outer baffle is higher than the inner baffle, at least one guide channel is provided in the annular interior of the sealing ring, the inlet of the guide channel is located outside the sealing ring and at a height between the double-layer annular baffles of the retention sealing ring, and the outlet of the guide channel is located at the lower end of the annular inner wall of the sealing ring.

[0008] Preferably, when the water pump is working, the outer baffle of the retention sealing ring contacts the inner wall of the channel of the water pump to intercept the liquid that penetrates between the sealing ring and the fluid channel of the water pump; the inner baffle intercepts the particles in the liquid; and the penetrated liquid flows into the diversion channel.

[0009] Preferably, a first annular notch is provided at the annular outer upper end of the sealing ring, a retention sealing ring is provided in the first annular notch, and an entrance of a guide channel is provided on the wall surface which is not in contact with the first annular notch and the retention sealing ring; when the water pump is working, an outer baffle of the retention sealing ring contacts the inner wall of the channel of the pump, and the outer baffle approaches the inside of the first annular notch but does not contact it, and there is a gap between the first annular notch and the outer baffle of the retention sealing ring.

[0010] Preferably, a limiting flow groove is provided at the outlet of the guide channel, and the limiting flow groove is located at the lower end of the annular inner wall of the sealing ring. The maximum diameter of the annular wall of the limiting flow groove is larger than the maximum diameter of the annular inner wall channel of the sealing ring, and the water flow direction flows from the upper end of the sealing ring to the lower end of the sealing ring.

[0011] Preferably, a second annular notch is provided at the middle end of the annular outer portion of the sealing ring, a sealing ring is provided inside the second annular notch, and at least two layers of sealing strips are provided on the annular outer wall of the sealing ring; when the water pump is working, the multi-layer sealing strips of the sealing ring are in close contact and sealed with the inner wall of the pump channel.

[0012] Preferably, a sealing gasket is provided at the bottom end of the annular outer portion of the sealing ring, and an annular protrusion is provided at the bottom end of the sealing ring to match the annular groove on the sealing gasket.

[0013] The technical solution of the present application has at least the following advantages and beneficial effects:

[0014] The double seal of the accumulation sealing ring and the sealing ring can prevent the water flow in the water pump from carrying particles, mud and sand to scour the sealing gap, thereby improving the sealing effect; the accumulation sealing ring accumulates mud and sand in the water flow that penetrates into the sealing gap, and guides the penetrating water flow into the water pump channel through the diversion channel, thereby preventing the water flow from constantly scouring the sealing part; the device has a simple structure, is easy to install, and the sealing components are easy to replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the device from the first angle.

[0017] Figure 3 This is a schematic diagram of the structure of the device from the second angle.

[0018] Figure 4 It is a schematic diagram of the cross-sectional structure of the device.

[0019] Figure 5 This is a schematic diagram of the structure of the device from the third angle.

[0020] In the figure: 1-seal ring; 2-retention seal ring; 3-seal ring; 4-seal gasket; 201-first annular notch; 202-flow guide channel; 203-flow limiting groove; 301-second annular notch. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further defined and explained in the subsequent figures. If the terms "center", "upper", "lower", "inner", "outer", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the figure, or the orientation or position relationship in which the product of the application is usually placed when in use, it is only for the convenience of describing the present application and simplifying the description, and does 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 of the present application. It should also be noted that unless otherwise clearly specified and limited, if the terms "set", "install", and "connect" appear, they 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 directly connected, or indirectly connected through an intermediate medium, or it can be a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0023] Example

[0024] Please refer to Figure 1-Figure 5 The utility model provides a sealing ring for a pump, characterized in that it comprises a sealing ring 1, a retention sealing ring 2, a first annular notch 201, a flow guide channel 202, and a flow limiting groove 203;

[0025] Furthermore, a first annular notch 201 is provided at the upper end of the annular outer portion of the sealing ring 1, and a retention sealing ring 2 is sleeved on the first annular notch 201. There is friction between the contact surfaces of the retention sealing ring 2 and the first annular notch 201, and the groove surface height of the first annular notch 201 is higher than the height of the retention sealing ring 2. A double-layer annular baffle is provided on the retention sealing ring 2, including an outer baffle located on the outer side of the retention sealing ring 2 and an inner baffle located on the inner side of the retention sealing ring 2. The outer baffle is higher than the inner baffle, and the inner and outer baffles are The baffles are inclined toward the outside of the sealing ring 1, and the inner and outer baffles are both arc-shaped baffles, wherein the arc bending direction of the inner and outer baffles is that the arc-shaped concave surfaces of the inner and outer baffles are relatively arranged; the outer baffle extends out from the first annular notch 201, and when the water pump is working, the outer baffle of the retention sealing ring 2 contacts the inner wall of the channel of the pump, and has a certain sealing effect, and the outer baffle approaches the inside of the first annular notch 201 but does not contact it, so that there is a gap between the first annular notch 201 and the outer baffle of the retention sealing ring 2.

[0026] Furthermore, at least one guide channel 202 is arranged in the annular interior of the sealing ring 1, and the entrance of the guide channel 202 is arranged on the wall surface where the first annular notch 201 and the retention sealing ring 2 are not in contact, the entrance height of the guide channel 202 is located between the double-layer annular baffles of the retention sealing ring 2, the outlet of the guide channel 202 is located at the lower end of the annular interior of the sealing ring 1, and a limiting flow groove 203 is arranged at the outlet of the guide channel 202, the limiting flow groove 203 is located at the lower end of the annular inner wall of the sealing ring 1, and the maximum diameter of the annular wall of the limiting flow groove 203 is larger than the maximum diameter of the annular inner wall channel of the sealing ring 1; when the water pump is working, the water flow direction flows from the upper end of the sealing ring 1 to the lower end of the sealing ring 1, and when the water flows through the outlet of the guide channel 202, the limiting flow groove 203 with a larger wall diameter forms a variable diameter, so that the flow velocity of the rapid water flow passing through is reduced, thereby reducing the phenomenon of water backflow into the outlet of the guide channel 202.

[0027] When the water flow in the water pump is too fast and the water flows in from the gap between the annular outer wall of the sealing ring 1 and the inner wall of the pump channel, it will be blocked by the outer baffle of the retention sealing ring 2 and flow between the double-layer baffles of the retention sealing ring 2. The slightly curved inner baffle will retain the particles, mud and other particles entrained in the water flow, preventing them from continuing to flow into the entrance of the guide channel 202 between the first annular notch 201 and the retention sealing ring 2 with the water flow, blocking the guide channel 202, and the water flows out from the outlet of the guide channel 202 and merges into the rapid water flow of the annular channel of the sealing ring 1, preventing the annular outer wall of the sealing ring 1 from being continuously eroded by the water flow carrying particles, thereby affecting the sealing performance.

[0028] In some embodiments, a sealing ring for a pump also includes a sealing ring 3 and a second annular notch 301.

[0029] Furthermore, a second annular notch 301 is provided at the middle end of the annular outer portion of the sealing ring 1, and a sealing ring 3 is sleeved inside the second annular notch 301. There is friction between the contact surfaces of the sealing ring 3 and the second annular notch 301 and the sealing ring 3 does not slide. At least two layers of sealing strips are provided on the annular outer wall of the sealing ring 3, and there are gaps between the sealing strips. When the entire device is installed on the inner wall of the channel with a pump, the multi-layer sealing strips can bend when in contact with the inner wall of the channel of the pump, thereby reducing the sliding resistance of the sealing ring 3 when in contact with the inner wall of the channel, thereby facilitating the installation of the device, and the multi-layer sealing strips are squeezed by the inner wall of the channel to perform a sealing fit, and the resulting sealing effect is still good. When the water pump is working, the multi-layer sealing strips of the sealing ring 3 are sealed in contact with the inner wall of the channel of the pump, and a secondary seal is performed on the water flow that still penetrates through the seal of the accumulated sealing ring 2, thereby improving the sealing effect.

[0030] In some embodiments, a pump sealing ring further includes a sealing gasket 4 .

[0031] Furthermore, a sealing gasket 4 is provided at the bottom end of the annular outer part of the sealing ring 1, and an annular protrusion is provided at the bottom end of the sealing ring 1, which matches the annular groove on the sealing gasket 4. The sealing gasket 4 installed at the bottom of the sealing ring 1 is slightly fixed by the friction resistance between the annular protrusion of the sealing ring 1 and the groove of the sealing gasket 4, so that when the device is installed in the water pump, the sealing gasket 4 will not fall off easily; when the water pump is working, the sealing gasket 4 fits and seals the contact end surface between the device and the water pump channel.

[0032] So far, various embodiments of the present invention have been described in detail. In order to avoid obscuring the concept of the present invention, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution of the present invention, and the scope of the present invention is defined by the attached claims.

Claims

1. A sealing ring for a pump, characterized in that: It comprises a sealing ring (1), a retention sealing ring (2), a flow guide channel (202), and a sealing ring (3); A retention sealing ring (2) is arranged at the upper end of the annular outer portion of the sealing ring (1), a double-layer annular baffle is arranged on the retention sealing ring (2), the outer baffle is higher than the inner baffle, at least one guide channel (202) is arranged in the annular inner portion of the sealing ring (1), the inlet of the guide channel (202) is located outside the sealing ring (1), the height is located between the double-layer annular baffle of the retention sealing ring (2), and the outlet of the guide channel (202) is located at the lower end of the annular inner wall of the sealing ring (1); When the water pump is working, the outer baffle of the retention sealing ring (2) contacts the inner wall of the channel of the water pump to intercept the liquid that penetrates between the sealing ring (1) and the fluid channel of the water pump; the inner baffle intercepts the particles in the liquid; and the penetrated liquid flows into the guide channel (202).

2. A pump sealing ring according to claim 1, characterized in that: A first annular notch (201) is provided at the annular outer upper end of the sealing ring (1), a retention sealing ring (2) is provided in the first annular notch (201), and an entrance of a guide channel (202) is provided on the wall surface that is not in contact with the first annular notch (201) and the retention sealing ring (2); when the water pump is working, the outer baffle of the retention sealing ring (2) contacts the inner wall of the channel of the pump, and the outer baffle approaches the inside of the first annular notch (201) but does not contact it, and there is a gap between the first annular notch (201) and the outer baffle of the retention sealing ring (2).

3. A pump sealing ring according to claim 1, characterized in that: A limiting flow groove (203) is provided at the outlet of the flow guide channel (202), the limiting flow groove (203) being located at the lower end of the annular inner wall of the sealing ring (1), the maximum diameter of the annular wall surface of the limiting flow groove (203) being greater than the maximum diameter of the annular inner wall channel of the sealing ring (1), and the direction of water flow is from the upper end of the sealing ring (1) to the lower end of the sealing ring (1).

4. A pump sealing ring according to claim 1, characterized in that: A second annular notch (301) is provided at the middle end of the annular outer portion of the sealing ring (1), a sealing ring (3) is provided inside the second annular notch (301), and at least two layers of sealing strips are provided on the annular outer wall of the sealing ring (3); when the water pump is working, the multiple layers of sealing strips of the sealing ring (3) are in close contact with the inner wall of the pump channel to form a seal.

5. A pump sealing ring according to claim 1, characterized in that: A sealing gasket (4) is arranged at the bottom end of the annular outer portion of the sealing ring (1), and an annular protrusion is arranged at the bottom end of the sealing ring (1) to match the annular groove on the sealing gasket (4).

Images