CN212454781U - Novel sealing structure of ceramic pump - Google Patents
Novel sealing structure of ceramic pump Download PDFInfo
- Publication number
- CN212454781U CN212454781U CN202020681935.1U CN202020681935U CN212454781U CN 212454781 U CN212454781 U CN 212454781U CN 202020681935 U CN202020681935 U CN 202020681935U CN 212454781 U CN212454781 U CN 212454781U
- Authority
- CN
- China
- Prior art keywords
- lip
- pad
- gasket
- sealing
- pump rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model discloses a novel seal structure of ceramic pump, the nut comprises a nut, wear to be equipped with ability reciprocating motion's pump rod in the nut, the cover is equipped with on the pump rod and is used for sealing the sealing of pump rod. The sealing part comprises a flat gasket, a first lip gasket, a second lip gasket and a third lip gasket which are arranged in sequence. One side of the flat pad is attached to the nut, and the other side of the flat pad is attached to the first lip-shaped pad. The first lip pad, the second lip pad and the third lip pad are identical in structure, and the mounting directions of the second lip pad and the third lip pad are opposite to the mounting direction of the first lip pad. The utility model discloses a novel seal structure of ceramic pump can effectively improve the problem that the ceramic pump that leads to because of the sealing wear leaked.
Description
Technical Field
The utility model relates to a ceramic pump equipment technical field especially relates to a novel seal structure of ceramic pump.
Background
At present, in the industries of medicine, pharmacy, biological reagents, food, petrochemical industry and the like, key parts of a metering pump, such as a pump rod, a pump sleeve, a metering part and the like, are mostly made of ceramic materials because the ceramic materials have the advantages of high hardness, wear resistance, corrosion resistance, cleanness, thermal stability and the like. The existing ceramic pump can continuously rub a sealing gasket due to the reciprocating motion of a ceramic pump rod, and after the existing ceramic pump is used for a long time, the sealing gasket is easy to abrade to generate a gap so as to cause liquid leakage.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects, the utility model aims to provide a novel sealing structure of a ceramic pump, which effectively improves the problem of leakage of the ceramic pump caused by the abrasion of the sealing structure.
In order to achieve the above purpose, the utility model discloses a technical scheme is: the utility model provides a novel seal structure of ceramic pump, includes the nut, wear to be equipped with ability reciprocating motion's pump rod in the nut, the cover is equipped with on the pump rod and is used for sealing the sealing portion of pump rod. The sealing part comprises a flat gasket, a first lip gasket, a second lip gasket and a third lip gasket which are arranged in sequence. One side of the flat pad is attached to the nut, and the other side of the flat pad is attached to the first lip-shaped pad. The first lip pad, the second lip pad and the third lip pad are identical in structure, and the mounting directions of the second lip pad and the third lip pad are opposite to the mounting direction of the first lip pad.
The beneficial effects of the utility model reside in that: the second lip pad, the third lip pad and the first lip pad are reversely arranged to form effective support among the first lip pad, the second lip pad, the third lip pad and the first lip pad, so that the sealing effect on a pump rod is enhanced, external dust and impurities are prevented from entering a pump, and the abrasion on the first lip pad, the second lip pad and the third lip pad is reduced; the support for the liquid in the pump can be enhanced through the arrangement of the second lip-shaped pad and the third lip-shaped pad in the same direction, and the second lip-shaped pad and the third lip-shaped pad are prevented from being damaged due to overlarge liquid pressure; in the reciprocating motion process of the pump rod, the flat pad applies extrusion force to the first lip-shaped pad, the second lip-shaped pad and the third lip-shaped pad, so that the first lip-shaped pad, the second lip-shaped pad and the third lip-shaped pad can automatically compensate even if being worn, and liquid leakage is avoided.
Further, the first lip pad includes a hollow seal having a frustoconical configuration. The small circular surface of the sealing gasket is arranged on the pump rod in a dynamic sealing mode, and the edge of the large circular surface of the sealing gasket is outwards integrally provided with a supporting raised edge. The pump rod is sealed through the sealing gasket, effective support among the first lip-shaped gasket, the second lip-shaped gasket and the third lip-shaped gasket is achieved through supporting the raised edge, and meanwhile the extrusion area of the flat gasket on the first lip-shaped gasket is increased.
Further, the diameter of the large circular surface of the sealing gasket is larger than that of the inner circular surface of the flat gasket; when the pump rod moves, the side wall of the sealing gasket can be in sealing fit with the inner ring surface of the flat gasket. When the pump rod moves, the first lip-shaped pad, the second lip-shaped pad and the third lip-shaped pad move towards the direction of the flat pad, when the sealing gasket of the first lip-shaped pad is attached to the inner ring surface of the flat pad, the flat pad can extrude the sealing gasket of the first lip-shaped pad to press towards the direction of the pump rod, and the pressure can be transmitted to the small circular surface through the sealing gasket, so that the pressure of the small circular surface is always greater than the fluid pressure, the sealing of the small circular surface to the pump rod is further ensured, and the fluid leakage is prevented; the same process is carried out; the second lip pad and the third lip pad are in the moving process, and due to the fact that the flat pads are used for extruding the supporting edges of the first lip pad, the second lip pad and the third lip pad, the sealing pad of the third lip pad can also be extruded onto the sealing pad of the second lip pad, and then the second lip pad can be used for effectively sealing the pump rod.
Further, the nut comprises a shell, an end cover for the flat gasket to be attached is integrally arranged on the shell, and a through hole for the pump rod to pass through is formed in the middle of the end cover.
Further, the diameter of the through hole is the same as that of the inner ring surface of the flat pad. Through the through hole with the same diameter and the inner ring surface of the flat gasket, the flat gasket can be completely attached to the end cover, and the extrusion effect of the flat gasket on the first lip gasket is improved.
Further, the pump rod comprises a pump rod main body, one end of the pump rod main body is provided with a flat end, and the other end of the pump rod main body is provided with a plunger cover. And a pin shaft penetrates through the plunger cover.
Drawings
Fig. 1 is a partially cut-away schematic view of an embodiment of the present invention;
fig. 2 is a schematic perspective view of an embodiment of the present invention;
fig. 3 is a schematic structural view of a first lip pad according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of the nut according to the embodiment of the present invention.
In the figure:
1-a nut; 11-a housing; 12-an end cap; 121-a through hole; 2-a pump rod; 21-a pump stem body; 22-flat end; 23-plunger cover; 24-a pin shaft; 3-flat cushion; 4-first lip pad; 41-a sealing gasket; 42-supporting the raised edge; 5-second lip pad; 6-third lip pad.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Examples
Referring to the attached drawings 1-2, the utility model discloses a novel seal structure of ceramic pump, including nut 1, wear to be equipped with ability reciprocating motion's pump rod 2 in the nut 1, the cover is equipped with on the pump rod 2 and is used for sealing the sealing of pump rod 2. The sealing part comprises a flat gasket 3, a first lip gasket 4, a second lip gasket 5 and a third lip gasket 6 which are arranged in sequence. One side of the flat pad 3 is attached to the nut 1, and the other side of the flat pad is attached to the first lip-shaped pad 3. No. 3, No. 4, No. 5 lip pads structures of lip pad are the same, just No. 4, No. 5 lip pads's of lip pad installation direction with No. 3 lip pad's of lip pad installation direction is opposite.
The second lip pad 5, the third lip pad 6 and the first lip pad 4 are reversely arranged to form effective support among the three, so that the sealing effect on the pump rod 2 is enhanced, external dust and impurities are prevented from entering the pump, and the probability of abrasion of the lip pads is reduced; the support of the second lip-shaped pad 5 and the third lip-shaped pad 6 to liquid in the pump can be enhanced through the arrangement of the second lip-shaped pad and the third lip-shaped pad in the same direction, and the second lip-shaped pad 5 and the third lip-shaped pad 6 are prevented from being damaged due to overlarge liquid pressure; in the process of the reciprocating motion of the pump rod 2, the flat pad 3 can apply extrusion force to the first lip-shaped pad 4, the second lip-shaped pad 5 and the third lip-shaped pad 6, so that the first lip-shaped pad 4, the second lip-shaped pad 5 and the third lip-shaped pad 6 can automatically compensate even if being worn, and liquid leakage is avoided.
In this embodiment, referring to fig. 3, the first lip pad 4 includes a hollow seal 41 having a frustoconical configuration. The small circular surface of the sealing gasket 41 is arranged on the pump rod 2 in a dynamic sealing manner, and the edge of the large circular surface of the sealing gasket is outwards integrally provided with a supporting raised edge 42. The pump rod 2 is sealed through the arrangement of the sealing gasket 41, effective support among the first lip-shaped gasket 4, the second lip-shaped gasket 5 and the third lip-shaped gasket 6 is realized through the arrangement of the supporting raised edge 42, and meanwhile, the extrusion area of the first lip-shaped gasket 4 by the flat gasket 3 is increased.
In this embodiment, the large circular surface of the seal 41 has a diameter larger than that of the inner circular surface of the flat gasket 3. When the pump rod 2 moves, the side wall of the sealing gasket 41 can be tightly attached to the inner annular surface of the flat gasket 3.
When the pump rod 2 moves, the first lip-shaped pad 4, the second lip-shaped pad 5 and the third lip-shaped pad 6 move towards the flat pad 3, when the sealing gasket 41 of the first lip-shaped pad 4 is attached to the inner annular surface of the flat pad 3, the flat pad 3 can extrude the sealing gasket 41 of the first lip-shaped pad 4 to press towards the pump rod 2, and the pressure can be transmitted to the small circular surface through the sealing gasket 41, so that the pressure of the small circular surface is always greater than the fluid pressure, the sealing of the small circular surface to the pump rod 2 is ensured, and the fluid leakage is prevented; the same process is carried out; the second lip pad 5 and the third lip pad 6 are in the moving process, and due to the fact that the flat pad 3 extrudes the supporting raised edges 42 of the first lip pad 4, the second lip pad 5 and the third lip pad 6, the sealing pad of the third lip pad 6 can also extrude the sealing pad of the second lip pad 5, and then effective sealing of the second lip pad 5 on the pump rod 2 is achieved.
In this embodiment, referring to fig. 4, the nut 1 includes a housing 11, an end cap 12 for the flat gasket 3 to be attached to is integrally disposed on the housing 11, and a through hole 121 for the pump rod 2 to pass through is disposed in a middle portion of the end cap 12. The diameter of the through hole 121 is the same as the diameter of the inner annular surface of the flat pad 3. Through the through hole 121 with the same diameter and the inner annular surface of the flat gasket 3, the flat gasket 3 can be completely attached to the end cover 12, and the extrusion effect of the flat gasket on the first lip gasket 4 is improved.
In the present embodiment, the pump rod 2 includes a pump rod main body 21, and one end of the pump rod main body 21 is provided with a flat end 22, and the other end is provided with a plunger cover 23. A pin shaft 24 is arranged on the plunger piston cover 23 in a penetrating way.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.
Claims (6)
1. A novel sealing structure of a ceramic pump comprises a nut (1), wherein a pump rod (2) capable of reciprocating is arranged in the nut (1) in a penetrating mode, and a sealing part used for sealing the pump rod (2) is sleeved on the pump rod (2); the method is characterized in that: the sealing part comprises a flat gasket (3), a first lip gasket (4), a second lip gasket (5) and a third lip gasket (6) which are arranged in sequence; one side of the flat pad (3) is attached to the nut (1), and the other side of the flat pad is attached to the first lip-shaped pad (4); no. one lip pad (4), No. two lip pads (5), No. three lip pads (6) structure is the same, just the installation direction of No. two lip pads (5), No. three lip pads (6) with the installation direction of No. one lip pad (4) is opposite.
2. The seal structure of claim 1, wherein: the first lip pad (4) comprises a hollow sealing pad (41) with a truncated cone structure; the small circular surface of the sealing gasket (41) is arranged on the pump rod (2) in a dynamic sealing mode, and the edge of the large circular surface of the sealing gasket is integrally provided with a supporting raised edge (42) outwards.
3. The seal structure of claim 2, wherein: the diameter of the large round surface of the sealing gasket (41) is larger than that of the inner ring surface of the flat gasket (3); when the pump rod (2) moves, the side wall of the sealing gasket (41) of the first lip-shaped gasket (4) can be in sealing fit with the inner annular surface of the flat gasket (3).
4. A sealing structure according to any one of claims 1 to 3, wherein: the nut (1) comprises a shell (11), an end cover (12) for the flat gasket (3) to be attached is integrally arranged on the shell (11), and a through hole (121) for the pump rod (2) to pass through is formed in the middle of the end cover (12).
5. The seal structure of claim 4, wherein: the diameter of the through hole (121) is the same as that of the inner ring surface of the flat pad (3).
6. The seal structure of claim 1, wherein: the pump rod (2) comprises a pump rod main body (21), one end of the pump rod main body (21) is provided with a flat end (22), and the other end of the pump rod main body is provided with a plunger cover (23); and a pin shaft (24) penetrates through the plunger cover (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020681935.1U CN212454781U (en) | 2020-04-28 | 2020-04-28 | Novel sealing structure of ceramic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020681935.1U CN212454781U (en) | 2020-04-28 | 2020-04-28 | Novel sealing structure of ceramic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212454781U true CN212454781U (en) | 2021-02-02 |
Family
ID=74468221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020681935.1U Active CN212454781U (en) | 2020-04-28 | 2020-04-28 | Novel sealing structure of ceramic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212454781U (en) |
-
2020
- 2020-04-28 CN CN202020681935.1U patent/CN212454781U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3214182A (en) | Packing ring | |
| US5524905A (en) | Sealing assembly with T-shaped seal ring and anti-extrusion rings | |
| CN212454781U (en) | Novel sealing structure of ceramic pump | |
| US3173698A (en) | Lipped sealing ring | |
| US3189359A (en) | Sealing ring with corner lip | |
| CN210949876U (en) | Pressure-adjustable shaft seal | |
| CN2931915Y (en) | Propulsion conical roller bearing having seal structure | |
| CN211501632U (en) | Novel SY type sealing member for reciprocating motion | |
| DE2126827A1 (en) | Ptfe gasket ring - for fixed and/or moving machine parts in pressurized or evacuated zones | |
| CN210178921U (en) | Bidirectional sealing ring | |
| CN210484612U (en) | Single-acting piston sealing ring | |
| CN210623551U (en) | Water pressure sealed waterproof rubber ring | |
| CN210164893U (en) | Y-shaped oil seal | |
| CN207213167U (en) | A kind of piston rod sealing ring | |
| CN209026202U (en) | A kind of seal combination with arc baffle ring | |
| CN212429710U (en) | Automobile gasket for reducing friction between fitting parts | |
| CN212028517U (en) | Novel piston rod sealing assembly | |
| CN218863271U (en) | High-speed high-pressure dustproof oil seal | |
| CN218845105U (en) | Double-layer O-shaped rubber sealing ring | |
| CN210565467U (en) | Piston rod sealing ring | |
| CN112628399B (en) | Symmetrical pre-tightening type high-temperature sealing ring capable of being filled with lubricating grease | |
| CN218954015U (en) | Durable rubber sealing gasket | |
| CN111271460A (en) | Y-shaped oil seal | |
| CN213808568U (en) | Control piston for clutch booster | |
| CN212899691U (en) | O-shaped sealing ring with high sealing effect |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |