CN211648442U - Fastening and sealing assembly for plunger pump - Google Patents
Fastening and sealing assembly for plunger pump Download PDFInfo
- Publication number
- CN211648442U CN211648442U CN201922411144.7U CN201922411144U CN211648442U CN 211648442 U CN211648442 U CN 211648442U CN 201922411144 U CN201922411144 U CN 201922411144U CN 211648442 U CN211648442 U CN 211648442U
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- sealing
- seal
- plunger pump
- plug screw
- fastening
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Abstract
The utility model discloses a fastening seal sub-assembly for plunger pump, which comprises a piston rod, the top cap, seal housing, the cylinder body, the lock plug screw, first seal chamber and the sealed room of second, the piston rod lower extreme is provided with the cylinder body, cylinder body top center is provided with the hickey, the inside lock plug screw that is provided with of hickey, the lock plug screw top surface is close to piston rod department and is provided with the thread bush, lock plug screw top surface is provided with seal housing, the seal housing inboard is provided with the screw thread of screwing up, be provided with the sealed room of second between thread bush and the piston rod, seal housing top surface sets up the top cap, seal housing is provided with the processing groove with the inboard seam crossing of. The utility model provides a pair of fastening seal sub-assembly for plunger pump can form the good seal structure of leakproofness with O type sealing washer interval through the annular seal subassembly cooperation semi-circular ring groove of design, has effectively avoided the structure situation of oil leak to appear in work, has effectively promoted the life-span of component.
Description
Technical Field
The utility model relates to a plunger pump auxiliary part field particularly, relates to a plunger pump is with fastening seal assembly.
Background
The plunger pump is an important device of the hydraulic system. The plunger reciprocates in the cylinder body to change the volume of the sealed working cavity so as to absorb and press oil. The plunger pump has the advantages of high rated pressure, compact structure, high efficiency, convenient flow regulation and the like, and is widely applied to occasions with high pressure, large flow and flow needing regulation, such as hydraulic machines, engineering machinery and ships.
The application number is CN 204140873U's a fastening seal sub-assembly for plunger pump includes cylinder body, piston rod, cup joints the locking plug screw on the piston rod, be provided with the sealing member between piston rod and the locking plug screw, the fastening of locking plug screw is in on the cylinder body, the locking plug screw comprises upper portion, middle part and lower part, its upper portion outer wall is provided with the external screw thread, the inner wall is provided with first sealing member and holds the room, the middle part is hexagon nut, the lower part outer wall is provided with the external screw thread, lower terminal surface is provided with the second sealing member and holds the room, still include sealed lid, sealed lid screws up in the upper portion of locking plug screw, sealed lid comprises lid and lid top, the lid inner wall is provided with the internal thread, the lid top open hole, lid top and lid inner wall internal thread junction are provided with the technology groove, it all leaves the space between a plurality of O type sealing washers and the ring, the structure may leak during long term use.
An effective solution to the problems in the related art has not been proposed yet.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a plunger pump is with fastening seal sub-assembly to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a fastening seal sub-assembly for plunger pump, includes piston rod, top cap, seal housing, cylinder body, lock plug screw, first seal chamber and the sealed chamber of second, the piston rod lower extreme is provided with the cylinder body, cylinder body top center is provided with the hickey, the hickey is inside to be provided with lock plug screw, lock plug screw top surface is close to piston rod department is provided with threaded sleeve, lock plug screw top surface is provided with seal housing, the seal housing inboard is provided with screws up the screw thread, threaded sleeve with be provided with between the piston rod the sealed chamber of second, the seal housing top surface sets up the top cap, seal housing with the inboard seam crossing of top cap is provided with the processing groove.
Further, a sealing device is arranged inside the second sealing chamber.
Furthermore, the sealing device comprises an O-shaped sealing ring and annular sealing assemblies, wherein two adjacent annular sealing assemblies are oppositely arranged and are provided with semi-circular grooves on non-contact surfaces.
Furthermore, the inside O type sealing washer that is provided with of half ring groove.
Further, the bottom surface of the sealing shell is provided with a thread latch, and the thread latch is in threaded connection with the inside of a thread clamping groove formed in the top surface of the locking plug screw.
Furthermore, the cylinder body with lock plug screw bottom surface junction is provided with seal ring, lock plug screw bottom surface is provided with sealed draw-in groove, the seal ring top surface is provided with the sealing gasket ring, the sealing gasket ring set up in inside the sealed draw-in groove, lock plug screw bottom surface in the piston rod outside is provided with first sealed chamber.
Further, a sealing member of the same material as the annular sealing assembly is disposed inside the first sealing chamber.
Furthermore, the top surface of the cylinder body is provided with an inclined plane supporting interface at the outer side of the threaded interface in a circle.
Further, the tightening thread is in threaded connection with the threaded sleeve.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) the utility model provides a pair of fastening seal sub-assembly for plunger pump can form the good seal structure of leakproofness with O type sealing washer interval through the annular seal subassembly cooperation semi-circular ring groove of design, has effectively avoided the structure situation of oil leak to appear in work, has effectively promoted the life-span of component.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a fastening seal assembly for a plunger pump according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of a ring seal assembly of a fastening seal assembly for a plunger pump according to an embodiment of the present invention.
Reference numerals:
1. a piston rod; 2. a top cover; 3. processing a tank; 4. a threaded bushing; 5. screwing the threads; 6. sealing the housing; 7. thread latch; 8. the thread clamping groove; 9. an inclined plane support interface; 10. a threaded interface; 11. a cylinder body; 12. a sealing device; 13. an O-shaped sealing ring; 14. an annular seal ring assembly; 15. locking the screw plug; 16. A first sealed chamber; 17. sealing the clamping groove; 18. a sealing gasket; 19. a second sealed chamber; 20. a semi-circular groove; 21. and a gasket ring.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of description and simplification of the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-2, a fastening seal assembly for a plunger pump according to an embodiment of the present invention includes a piston rod 1, a top cap 2, a seal housing 6, a cylinder 11, a locking screw 15, a first seal chamber 16 and a second seal chamber 19, the lower end of the piston rod 1 is provided with the cylinder body 11, the center of the top end of the cylinder body 11 is provided with a threaded interface 10, the inside of the threaded interface 10 is provided with the locking screw plug 15, the top surface of the locking screw plug 15 close to the piston rod 1 is provided with a threaded sleeve 4, the top surface of the locking screw plug 15 is provided with the sealing shell 6, the inner side of the sealing shell 6 is provided with a tightening thread 5, the second sealing chamber 19 is arranged between the threaded sleeve 4 and the piston rod 1, the top surface of the sealing shell 6 is provided with the top cover 2, and a processing groove 3 is arranged at the joint of the sealing shell 6 and the inner side of the top cover 2.
Through the above technical scheme of the utility model, second seal chamber 19 is inside to be provided with sealing device 12.
Through the above technical scheme of the utility model, sealing device 12 includes O type sealing washer 13 and annular seal subassembly 14, adjacent two opposite setting is provided with semi-circular ring groove 20 in the non-contact surface between the annular seal subassembly 14, can place O type sealing washer 13 in the middle of the semi-circular ring groove 20 of putting relatively.
Through the above technical scheme of the utility model, semi-circular ring shape inslot 20 is inside to be provided with O type sealing washer 13 makes whole sealing device 12 sealed effect more obvious, does not have the space.
Through the above technical scheme of the utility model, 6 bottom surfaces of seal shell are provided with screw thread latch 7, 7 threaded connection in of screw thread latch in 8 inside the screw thread joint groove of the setting of tight lock plug screw 15 top surface, consolidate the relation of connection between seal shell 6 and the tight lock plug screw 15.
Through the above technical scheme of the utility model, cylinder body 11 with 15 bottom surface junctions of lock plug screw are provided with seal ring 18, 15 bottom surfaces of lock plug screw are provided with sealed draw-in groove 17, seal ring 18 top surface is provided with sealing gasket ring 21, sealing gasket ring 21 set up in inside sealed draw-in groove 17, lock plug screw 15 bottom surface in the 1 outside of piston rod is provided with first sealed chamber 16.
Through the above technical scheme of the utility model, the inside sealing member who is provided with the same material with annular seal assembly 14 of first seal chamber 16.
Through the above technical scheme of the utility model, 11 top surfaces of cylinder body in the round is provided with inclined plane support interface 9 outside the hickey 10, increases the side direction holding power of kneck.
Through the above technical scheme of the utility model, screw up screw thread 5 with 4 threaded connection of threaded sleeve.
When the sealing structure is used specifically, the designed annular sealing component 14 is matched with the semi-annular groove 20 to form a sealing structure with excellent sealing performance at intervals with the O-shaped sealing ring 13, so that the oil leakage condition of the structure in work is effectively avoided, and the service life of components is effectively prolonged.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A fastening sealing assembly for a plunger pump comprises a piston rod (1), a top cover (2), a sealing shell (6), a cylinder body (11), a locking plug screw (15), a first sealing chamber (16) and a second sealing chamber (19), and is characterized in that the lower end of the piston rod (1) is provided with the cylinder body (11), the top end center of the cylinder body (11) is provided with a threaded interface (10), the locking plug screw (15) is arranged inside the threaded interface (10), a threaded sleeve (4) is arranged at the position, close to the piston rod (1), of the top surface of the locking plug screw (15), the sealing shell (6) is arranged on the top surface of the locking plug screw (15), a screwing thread (5) is arranged on the inner side of the sealing shell (6), and the second sealing chamber (19) is arranged between the threaded sleeve (4) and the piston rod (1), the top surface of the sealing shell (6) is provided with the top cover (2), and a processing groove (3) is arranged at the joint of the inner side of the sealing shell (6) and the top cover (2).
2. A fastening and sealing combination for a plunger pump according to claim 1, characterized in that the second sealing chamber (19) is provided internally with sealing means (12).
3. The fastening seal assembly for the plunger pump according to claim 2, wherein the sealing means (12) comprises an O-ring (13) and annular sealing members (14), and adjacent two annular sealing members (14) are oppositely arranged and provided with semi-circular grooves (20) on non-contact surfaces.
4. A fastening and sealing assembly for a plunger pump according to claim 3, characterized in that the O-ring seal (13) is arranged inside the semi-circular groove (20).
5. The fastening seal assembly for the plunger pump according to claim 1, characterized in that the seal housing (6) is provided with a threaded latch (7) at a bottom surface, and the threaded latch (7) is screwed into a threaded latch groove (8) provided at a top surface of the locking plug screw (15).
6. The fastening seal assembly for the plunger pump according to claim 1, wherein a sealing gasket (18) is arranged at the joint of the cylinder body (11) and the bottom surface of the locking plug screw (15), a sealing clamping groove (17) is arranged on the bottom surface of the locking plug screw (15), a sealing gasket ring (21) is arranged on the top surface of the sealing gasket (18), the sealing gasket ring (21) is arranged inside the sealing clamping groove (17), and the first seal chamber (16) is arranged on the bottom surface of the locking plug screw (15) outside the piston rod (1).
7. The fastening seal assembly for a plunger pump according to claim 6, characterized in that the first seal chamber (16) is internally provided with a sealing member of the same material as the annular seal member (14).
8. The fastening and sealing assembly for a plunger pump according to claim 1, characterized in that the top surface of the cylinder block (11) is provided with a bevel support interface (9) around the outside of the threaded interface (10).
9. A fastening seal assembly for a plunger pump according to claim 1, characterized in that the tightening thread (5) is screwed with the threaded sleeve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922411144.7U CN211648442U (en) | 2019-12-28 | 2019-12-28 | Fastening and sealing assembly for plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922411144.7U CN211648442U (en) | 2019-12-28 | 2019-12-28 | Fastening and sealing assembly for plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211648442U true CN211648442U (en) | 2020-10-09 |
Family
ID=72700235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922411144.7U Expired - Fee Related CN211648442U (en) | 2019-12-28 | 2019-12-28 | Fastening and sealing assembly for plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211648442U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112555294A (en) * | 2020-11-20 | 2021-03-26 | 山东北溟科技有限公司 | Underwater separation device |
-
2019
- 2019-12-28 CN CN201922411144.7U patent/CN211648442U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112555294A (en) * | 2020-11-20 | 2021-03-26 | 山东北溟科技有限公司 | Underwater separation device |
| CN112555294B (en) * | 2020-11-20 | 2022-02-22 | 山东北溟科技有限公司 | Underwater separation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201009 |