CN202746185U - Dual-guide conical valve with non-metallic seal and hydraulic cylinder body structure thereof - Google Patents
Dual-guide conical valve with non-metallic seal and hydraulic cylinder body structure thereof Download PDFInfo
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- CN202746185U CN202746185U CN 201220401348 CN201220401348U CN202746185U CN 202746185 U CN202746185 U CN 202746185U CN 201220401348 CN201220401348 CN 201220401348 CN 201220401348 U CN201220401348 U CN 201220401348U CN 202746185 U CN202746185 U CN 202746185U
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- valve
- liquid
- feed liquor
- discharge opeing
- valve seat
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Abstract
The utility model relates to a dual-guide conical valve with a non-metallic seal and a hydraulic cylinder body structure thereof. The dual-guide conical valve is characterized by comprising a public valve seat (1), wherein two ends of the public valve seat (1) are provided with a liquid feeding valve hole (11) and a liquid discharging valve hole (12) which are not communicated, and a liquid feeding valve core (2) and a liquid discharging valve core (6) are respectively and movably arranged in the liquid feeding valve hole (11) and the liquid discharging valve hole (12); a liquid feeding valve cover (5) is arranged outside the public valve seat (1) and in a position opposite to the liquid feeding valve hole (11), and a liquid discharging valve cover (9) is arranged outside the public valve seat (1) and in a position opposite to the liquid discharging valve hole (12); and the public valve seat (1) is provided with a liquid feeding valve liquid inlet (15) communicated with the liquid feeding valve hole (11) and a liquid discharging valve liquid inlet (16) communicated with the liquid discharging valve hole (12), and the liquid feeding valve liquid inlet (15) and the liquid discharging valve liquid inlet (16) are not communicated. The dual-guide conical valve has the advantages that the liquid feeding valve and the liquid discharging valve are combined on the same public valve seat, the scope of discharge pressure is large, and the valve can be conveniently installed, disassembled and maintained.
Description
Technical field
The utility model relates to a kind of pair of nonmetal sealing mitre velve of guidance tape and liquid cylinder structure thereof.
Background technique
Pump valve is the key components and parts of reciprocating pump.Contain in the reciprocating pump of particulate matter sewage in conveying, the nonmetal sealing mitre velve of two guidance tapes and liquid cylinder structure thereof have obtained using widely.
The nonmetal sealing mitre velve of common two guidance tapes referring to Fig. 3, shown in Figure 4, is comprised of valve seat 1 ', spool 2 ', nonmetal seal ring 3 ', spring 4 ', valve bonnet 5 '.Nonmetal seal ring 3 ' is contained in the groove 21 ' of the spool 2 ' conical surface; Four guide grabs 22 ' of spool 2 ' bottom cooperate with valve seat 1 ' endoporus 11 ', make its unlikely generation deflection in movement process; Spring 4 ' upper end is contained in the valve bonnet 5 ', the lower end is contained on the spool 2 ', the upper end 23 ' of spool 2 ' is contained in valve bonnet 5 ' the middle part endoporus 51 ' and is mated, guarantee that spring 4 ' is in the process of compression, elongation, it is crooked that moving direction is unlikely to, simultaneously also guaranteed spool 2 ' at the volley with centering and the sealing of valve seat 1 '; Valve bonnet 5 ' links to each other with valve seat 1 ' with screw thread.
This pair of nonmetal sealing mitre velve of guidance tape has following characteristics:
1, on the metal spool conical surface nonmetal ring structure is housed, when pump valve is taken a seat, can slows down impact and when closing, increase sealing contact surface, improve sealability, be applicable to carry and contain particulate matter sewage.
2, the nonmetal sealing mitre velve of two guidance tapes has dual guiding in the opening and closing process, thereby guarantees centering and the sealing of cone valve and valve seat.
Than hour (less than 16MPa), the characteristics of this valve group and liquid cylinder structure thereof have obtained sufficient displaying to pump in head pressure.Plunger pump is a kind of positive displacement reciprocating pump, and it is to rely on reciprocating plunger in the fluid cylinder, periodically changes volume size, by advance, the liquid discharging valve group, thereby reach the purpose that sucks and discharge medium.The fluid cylinder assembly as shown in Figure 5, the medium when plunger 6 in " when the left movement, liquid cylinder 7 " inner space 71 " increases, pressure decreased, suction pipe 8 " overcomes suction valve 9 " drag losses enter into fluid cylinder 71 " under the pressure difference effect." when turning right motion, the medium in the liquid cylinder 7 " inner space 71 " is extruded, and pressure increases; under this pressure-acting; suction valve 9 " closes when plunger 6, and in the expulsion valve 10 " be opened, the medium in the liquid cylinder 7 " inner space 71 " is discharged to discharge conduit 12 under the pressure difference effect ".
But, when pump in head pressure during greater than 16MPa, liquid cylinder 7 " easy cracking often.Its main cause is: liquid cylinder produces the region memory of high-voltage alternating load and concentrates at stress, " locate to exist stress to concentrate; and to bear the effect of high-voltage alternating load; to add the high salinity corrosion in water, particulate matter washes away the high pressure at liquid cylinder cross bore intersecting line place; jointly to produce corrosion fatigue, thereby form pump housing cracking at stress raiser as at liquid cylinder 7 " cross bore intersecting line 72 ", 73.
Therefore, improve the head pressure scope of two nonmetal sealing mitre velves of guidance tape, prevent that the liquid cylinder cracking from becoming the problem of reciprocating pump research of technique.
The model utility content
First technical problem to be solved in the utility model is to provide the larger two guidance tapes of a kind of head pressure scope nonmetal sealing mitre velve for above-mentioned prior art.
Second technical problem to be solved in the utility model is to provide a kind of at delivery high-pressure, when containing particulate matter sewage medium for above-mentioned prior art, the liquid cylinder structure of reliability height and long service life.
The technological scheme that above-mentioned first technical problem that solves the utility model adopts is: the nonmetal sealing mitre velve of this pair guidance tape, it is characterized in that: comprise public valve seat, described public valve seat two ends are provided with not connected feed liquor valve opening and discharge opeing valve opening, the feed liquor spool is movably arranged in the described feed liquor valve opening, and the discharge opeing spool is movably arranged in the described discharge opeing valve opening; The outer position relative with described feed liquor valve opening of described public valve seat is provided with the feed liquor valve bonnet, be provided with the liquid feed valve liquid outlet on the feed liquor valve bonnet, the outer position relative with described discharge opeing valve opening of described public valve seat is provided with the discharge opeing valve bonnet, is provided with the liquid discharging valve liquid outlet on the discharge opeing valve bonnet; Offer the liquid feed valve liquid entering hole that communicates with described feed liquor valve opening on the described public valve seat, also offer the liquid discharging valve liquid entering hole that communicates with described discharge opeing valve opening on the described public valve seat, liquid feed valve liquid entering hole and liquid discharging valve liquid entering hole are not connected.
As improvement, be provided with the first [Dan that an inside axle extends on the described feed liquor valve bonnet, the feed liquor spring housing is located on the first [Dan outer wall, and feed liquor spring one end is installed on the feed liquor valve bonnet valve bonnet inwall, and the feed liquor spring the other end is installed on the feed liquor spool; Be provided with the second [Dan that an inside axle extends on the described discharge opeing valve bonnet, the discharge opeing spring housing is located on the second [Dan outer wall, and discharge opeing spring one end is installed on the discharge opeing valve bonnet inwall, and the discharge opeing spring the other end is installed on the discharge opeing spool; Be provided with first directional post that can in the first [Dan, move around that matches with the first [Dan on the described feed liquor spool, be provided with second directional post that can in the second [Dan, move around that matches with the second [Dan on the described discharge opeing spool.
Improve again, be provided with the 3rd directional post that matches with the feed liquor valve opening of public valve seat, can in the feed liquor valve opening of public valve seat, move around on the described feed liquor spool; Be provided with the 4th directional post that matches with the discharge opeing valve opening of public valve seat, can in the discharge opeing valve opening of public valve seat, move around on the described discharge opeing spool.
Improve, the opening end of described feed liquor valve opening is processed into the conical surface that matches with liquid feed valve outer core conical surface again; The opening end of described discharge opeing valve opening also is processed into the conical surface that matches with liquid discharging valve outer core conical surface; Be processed with the first groove on the described liquid feed valve outer core conical surface, the first nonmetal seal ring is contained in this first groove, and matches with the conical surface of feed liquor valve seat orifice opening end; Also be processed with the second groove on the described liquid discharging valve outer core conical surface, the second nonmetal seal ring is contained in the second groove, and matches with the conical surface of discharge opeing valve opening opening end.
Improve again, be between described public valve seat and described feed liquor valve bonnet, the discharge opeing valve bonnet and be threaded.
Improve, described liquid feed valve liquid entering hole and described liquid discharging valve liquid entering hole are provided with a plurality of again.
The technological scheme that above-mentioned second technical problem that solve the utility model adopts is: a kind of liquid cylinder structure, comprise cylinder body, be provided with inlet opening and outage on the cylinder body, be provided with the transverse holes that all is communicated with described inlet opening and outage in the cylinder body, it is characterized in that: described transverse holes inside is provided with such as the nonmetal sealing mitre velve of two guidance tapes of above-mentioned structure, and described transverse holes matches with the outer wall of described public valve seat.
As improvement, the inlet opening on the described cylinder body communicates with the liquid feed valve liquid entering hole of described public valve seat; Described public valve seat outer wall two ends are provided with groove, the two ends of public valve seat are fixed in the described transverse holes by left gland, right gland respectively, and are arranged in the described transverse holes by the first seal ring, the sealing of the second seal ring that is arranged in the groove of public valve seat Wai Yuan two ends.
Improve, described inlet opening is vertically set on upper and lower position, cylinder body middle part again, and intersects with described transverse holes, and diameter is less than the width of the public valve seat of described combination brake switch and proporting; Being provided with perforation on the described right gland communicates with the outage of liquid cylinder.
Improve, the liquid cylinder structure that the utility model provides also comprises plunger piston seal box body assembly and Bian Falan again, and the bolt on this plunger piston seal box body assembly is fixed described left gland position, and plunger piston seal box body assembly and left gland seal with the 3rd seal ring; Bolt on the Bian Falan, the fixing described right gland position of nut; The position of described right gland and the sealing of described liquid cylinder transverse holes the 4th seal ring is at the outage right-hand member of liquid cylinder.
Compared with prior art, the utility model has the advantage of: the liquid feed valve in the nonmetal sealing taper of the two guidance tapes combination brake switch and proporting and liquid discharging valve common combination are on same public valve seat, and the head pressure scope is larger, install, dismantle, keep in repair very convenient; Adopt the liquid cylinder structure of the nonmetal sealing taper of the two guidance tapes combination brake switch and proporting of this structure, its import cross bore intersecting line place is under the low-pressure effect of homeostasis all the time; The outlet cross bore intersecting line place of liquid cylinder is under the high pressure effect of homeostasis all the time; Although that is to say at the inlet/outlet cross bore intersecting line place of liquid cylinder to exist stress to concentrate, do not have the zone of alternate load, so the phenomenon of liquid cylinder cracking can greatly reduce.
Description of drawings
Fig. 1 is the structural representation of the two nonmetal sealing taper of guidance tape combination brake switch and proporting among the utility model embodiment.
Fig. 2 is the structural representation of liquid cylinder structure among the utility model embodiment.
Fig. 3 is the structural representation of two nonmetal sealing mitre velves of guidance tape in the prior art.
Fig. 4 be among Fig. 3 A-A to sectional view.
Fig. 5 is the structural representation of liquid cylinder structure in the prior art.
Embodiment
Embodiment is described in further detail the utility model below in conjunction with accompanying drawing.
The nonmetal sealing taper of two guidance tapes combination brake switch and proporting as shown in Figure 1, it comprises the valve body that jointly is comprised of public valve seat 1 and feed liquor valve bonnet 5, discharge opeing valve bonnet 9, public valve seat 1 two ends are provided with not connected feed liquor valve opening 11 and discharge opeing valve opening 12, and the opening end of described feed liquor valve opening 11, discharge opeing valve opening 12 is processed into respectively 90 ° of conical surfaces; Feed liquor spool 2 is movably arranged in the described feed liquor valve opening 11, and liquid discharging valve 6 is movably arranged in the described discharge opeing valve opening 12; Feed liquor valve bonnet 5 is arranged on the relative position of the outer and described feed liquor valve opening of described public valve seat 1 11, between feed liquor valve bonnet 5 and the public valve seat 1 for being threaded, be provided with the liquid feed valve liquid outlet on the feed liquor valve bonnet 5, be provided with the first [Dan 51 that an inside axle extends on the feed liquor valve bonnet 5, feed liquor spring housing 4 is located on the first [Dan 51 outer walls, feed liquor spring 4 one ends are installed on feed liquor valve bonnet valve bonnet 5 inwalls, and feed liquor spring 4 the other ends are installed on the feed liquor spool 2; Discharge opeing valve bonnet 9 is arranged on the relative position of the outer and described discharge opeing valve opening of described public valve seat 1 12, also for being threaded, is provided with the second [Dan 91 of an inside axle extension on the discharge opeing valve bonnet 9 between discharge opeing valve bonnet 9 and the public valve seat 1; Discharge opeing spring 8 is set on the second [Dan 91 outer walls, and discharge opeing spring 8 one ends are installed on discharge opeing valve bonnet 9 inwalls, and discharge opeing spring 8 the other ends are installed on the discharge opeing spool 6; Be provided with first directional post 23 that can in the first [Dan 51, move around that matches with the first [Dan 51 on the described feed liquor spool 2, be provided with second directional post 63 that can in the second [Dan 91, move around that matches with the second [Dan 91 on the described liquid discharging valve 6; Offer a plurality of five equilibrium liquid feed valve liquid entering holes 15 that communicate with described feed liquor valve opening 11 on described public valve seat 1 outer rim, the outside, described public valve seat 1 left side also offers the liquid discharging valve liquid entering hole 16 of a plurality of five equilibriums that communicate with described discharge opeing valve opening 12, and liquid feed valve liquid entering hole 15 and liquid discharging valve liquid entering hole 16 are not connected; Described public valve seat 1 outer rim two ends car has groove 18,19.
Also be provided with the 3rd directional post 22 that four feed liquor valve openings with public valve seat 1 are 11 that match, can move around on the described feed liquor spool 2 in the feed liquor valve opening 11 of public valve seat 1; Be provided with the 4th directional post 62 that four discharge opeing valve openings with public valve seat are 12 that match, can move around on the described liquid discharging valve 6 in the discharge opeing valve opening 12 of public valve seat 1.
The opening end of described feed liquor valve opening 11 is processed into the conical surface that matches with feed liquor spool 2 outer wall conical surfaces; The opening end of described discharge opeing valve opening 12 also is processed into the conical surface that matches with liquid discharging valve 6 outer wall conical surfaces; Be processed with the first groove 21, the first nonmetal seal rings 3 on the described feed liquor spool 2 outer wall conical surfaces and be contained in this first groove 21, and match with the conical surface of feed liquor valve seat orifice opening end; Also be processed with the second groove 61, the second nonmetal seal rings 7 on the described liquid discharging valve 6 outer wall conical surfaces and be contained in the second groove 61, and match with the conical surface of discharge opeing valve opening 12 opening ends.
The utility model also provides a kind of Novel hydraulic oil cylinder body structure, as shown in Figure 2, it comprises by the nonmetal sealing mitre velve of two guidance tapes of cylinder body 10, said structure, left gland 113, right gland 114, plunger piston seal box body assembly 117, limit sends out blue 119, described cylinder body 10 is a cuboid, at the cuboid medium position one transverse holes 101 that matches with the described pair of nonmetal sealing mitre velve of guidance tape outer rim is arranged; Be drilled with respectively two upright openings 102,103 as the inlet opening of cylinder body 10 as liquid cylinder in upper and lower position, cuboid middle part, two upright openings 102,103 crossing with described transverse holes 101, and diameter is less than the width of described public valve seat 1; Be drilled with upright opening 104 in cylinder body 10 right part positions, as the outage of cylinder body 10.
The described pair of nonmetal sealing mitre velve 1 of guidance tape packed in the transverse holes 101 of described cylinder body 10, and the liquid feed valve liquid entering hole 15 on the described public valve seat 1 communicates with two inlet openings 102,103 of described cylinder body; Locate with left gland 113, right gland 114 at the nonmetal sealing mitre velve of two guidance tapes two ends, and seal with the first seal ring 115, the second seal ring 116 that are contained in the public valve seat 1 outer rim two ends groove 18,19; The described position that is contained in the first seal ring 115 in the public valve seat 1 outer rim two ends groove, the second seal ring 116 is included in two inlet openings 102,103 of cylinder body 10 wherein; The position of the second seal ring 116 of described public valve seat 1 outer rim right-hand member is at the left end of the outage 104 of described cylinder body 10; Perforation 123 on described right gland 114 outer rims communicates with the outage 104 of liquid cylinder.
The position of the bolt 118 fixing described left glands 113 on the described plunger piston seal box body assembly 117, plunger piston seal box body assembly 117 and 124 sealings of left gland 113 usefulness the 3rd seal ring; Bolt 120, nut 121 fixing described right gland 114 positions on blue 119 are sent out on described limit; Described right gland 114 and 122 sealings of described transverse holes 101 usefulness the 4th seal ring, the position of described the 4th seal ring 122 is at the right-hand member of the outage 104 of cylinder body 10, and the position of the second seal ring 116, the 4th seal ring 122 is included in the outage 104 of cylinder body 10 wherein.
As shown in Figure 2, when plunger 125 past left movement, the volumes 126 in the cylinder body 10 increase pressure decreased, medium in the inlet opening 102 of cylinder body 10,103 is under the pressure difference effect, and the drag losses that overcomes liquid feed valve by liquid feed valve liquid entering hole 15 enters into cylinder body 10.When plunger 125 was turned right motion, the medium in the cylinder body 10 was extruded, and pressure increases, under this pressure-acting, liquid feed valve is closed, and medium opens liquid discharging valve by liquid discharging valve liquid entering hole 16, and the medium in the cylinder body 10 is discharged in the outage 104 under the pressure difference effect.
Import cross bore intersecting line 126,127 places of cylinder body 10 are under low-pressure (inlet pressure) effect of homeostasis all the time in the utility model; Outlet cross bore intersecting line 128 places of cylinder body 10 are under high pressure (head pressure) effect of homeostasis all the time; Although that is to say at inlet/outlet cross bore intersecting line 126,127,128 places of cylinder body 10 to exist stress to concentrate, do not have the zone of alternate load, so the phenomenon of liquid cylinder cracking can greatly reduce.Liquid feed valve in two nonmetal sealing mitre velves of guidance tape and liquid discharging valve common combination are installed, dismantle, keep in repair very convenient in new structure fluid cylinder assembly on same valve seat in addition.
Claims (10)
1. two nonmetal sealing mitre velve of guidance tape, it is characterized in that: comprise public valve seat (1), described public valve seat (1) two ends are provided with not connected feed liquor valve opening (11) and discharge opeing valve opening (12), feed liquor spool (2) is movably arranged in the described feed liquor valve opening (11), and discharge opeing spool (6) is movably arranged in the described discharge opeing valve opening (12); The outer position relative with described feed liquor valve opening (11) of described public valve seat (1) is provided with feed liquor valve bonnet (5), the feed liquor valve bonnet is provided with the liquid feed valve liquid outlet on (5), the outer position relative with described discharge opeing valve opening (12) of described public valve seat (1) is provided with discharge opeing valve bonnet (9), is provided with the liquid discharging valve liquid outlet on the discharge opeing valve bonnet; Offer the liquid feed valve liquid entering hole (15) that communicates with described feed liquor valve opening (11) on the described public valve seat (1), also offer the liquid discharging valve liquid entering hole (16) that communicates with described discharge opeing valve opening (12) on the described public valve seat (1), liquid feed valve liquid entering hole (15) and liquid discharging valve liquid entering hole (16) are not connected.
2. according to claim 1 pair of nonmetal sealing mitre velve of guidance tape, it is characterized in that: be provided with the first [Dan (51) that an inside axle extends on the described feed liquor valve bonnet (5), feed liquor spring housing (4) is located on the first [Dan (51) outer wall, feed liquor spring (4) one ends are installed on feed liquor valve bonnet valve bonnet (5) inwall, and feed liquor spring (4) the other end is installed on the feed liquor spool (2); Be provided with the second [Dan (91) that an inside axle extends on the described discharge opeing valve bonnet (9), discharge opeing spring (8) is set on the second [Dan (91) outer wall, discharge opeing spring (8) one ends are installed on discharge opeing valve bonnet (9) inwall, and discharge opeing spring (8) the other end is installed on the discharge opeing spool (6); Be provided with first directional post (23) that can in the first [Dan (51), move around that matches with the first [Dan (51) on the described feed liquor spool (2), be provided with second directional post (63) that can in the second [Dan (91), move around that matches with the second [Dan (91) on the described discharge opeing spool (6).
3. the according to claim 1 and 2 pair of nonmetal sealing mitre velve of guidance tape is characterized in that: be provided with the 3rd directional post (22) that matches with the feed liquor valve opening (11) of public valve seat (1), can move around on the described feed liquor spool (2) in the feed liquor valve opening (11) of public valve seat (1); Be provided with the 4th directional post (62) that matches with the discharge opeing valve opening (12) of public valve seat, can in the discharge opeing valve opening (12) of public valve seat (1), move around on the described discharge opeing spool (6).
4. according to claim 1 and 2 pair of nonmetal sealing mitre velve of guidance tape, it is characterized in that: the opening end of described feed liquor valve opening (11) is processed into the conical surface that matches with feed liquor spool (2) outer wall conical surface; The opening end of described discharge opeing valve opening (12) also is processed into the conical surface that matches with discharge opeing spool (6) outer wall conical surface; Be processed with the first groove (21) on described feed liquor spool (2) the outer wall conical surface, the first nonmetal seal ring (3) is contained in this first groove (21), and matches with the conical surface of feed liquor valve seat orifice opening end; Also be processed with the second groove (61) on described discharge opeing spool (6) the outer wall conical surface, the second nonmetal seal ring (7) is contained in the second groove (61), and matches with the conical surface of discharge opeing valve opening (12) opening end.
5. according to claim 1 and 2 pair of nonmetal sealing mitre velve of guidance tape is characterized in that: be between described public valve seat (1) and described feed liquor valve bonnet (5), the discharge opeing valve bonnet (9) and be threaded.
6. according to claim 1 and 2 pair of nonmetal sealing mitre velve of guidance tape, it is characterized in that: described liquid feed valve liquid entering hole (15) and described liquid discharging valve liquid entering hole (16) are provided with a plurality of.
7. liquid cylinder structure, comprise cylinder body (10), be provided with inlet opening (102,103) and outage (104) on the cylinder body (10), be provided with the transverse holes (101) that all is communicated with described inlet opening (102,103) and outage (104) in the cylinder body (10), it is characterized in that: described transverse holes (101) inside is provided with the as claimed in claim 1 pair of nonmetal sealing mitre velve of guidance tape, and described transverse holes (101) matches with the outer wall of described public valve seat (1).
8. liquid cylinder structure according to claim 7, it is characterized in that: the inlet opening on the described cylinder body (102,103) communicates with the liquid feed valve liquid entering hole (15) of described public valve seat (1); Described public valve seat (1) outer wall two ends are provided with groove (18,19), the two ends of public valve seat (1) are fixed in the described transverse holes (101) by left gland (113), right gland (114) respectively, and are arranged in the described transverse holes (101) by the first seal ring (115), the second seal ring (116) sealing that is arranged in public valve seat (1) the Wai Yuan two ends grooves (18,19).
9. liquid cylinder structure according to claim 8, it is characterized in that: described inlet opening (102,103) is vertically set on upper and lower position, cylinder body (10) middle part, and intersect with described transverse holes (101), diameter is less than the width of the public valve seat of described combination brake switch and proporting (1); Being provided with perforation (123) on the described right gland (114) communicates with the outage (104) of liquid cylinder.
10. liquid cylinder structure according to claim 7, it is characterized in that: also comprise plunger piston seal box body assembly (117) and Bian Falan (119), bolt (118) on this plunger piston seal box body assembly (117) is fixed described left gland (113) position, and plunger piston seal box body assembly (117) seals with the 3rd seal ring (124) with left gland (113); Bolt (120) on the Bian Falan (119), fixing described right gland (114) position of nut (121); The position of described right gland (114) and described liquid cylinder transverse holes (101) the 4th seal ring (122) sealing is at outage (104) right-hand member of liquid cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220401348 CN202746185U (en) | 2012-08-14 | 2012-08-14 | Dual-guide conical valve with non-metallic seal and hydraulic cylinder body structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220401348 CN202746185U (en) | 2012-08-14 | 2012-08-14 | Dual-guide conical valve with non-metallic seal and hydraulic cylinder body structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202746185U true CN202746185U (en) | 2013-02-20 |
Family
ID=47705586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220401348 Withdrawn - After Issue CN202746185U (en) | 2012-08-14 | 2012-08-14 | Dual-guide conical valve with non-metallic seal and hydraulic cylinder body structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202746185U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767512A (en) * | 2012-08-14 | 2012-11-07 | 宁波合力机泵有限公司 | Dual-guide belt nonmetallic sealing conical valve and hydraulic cylinder body structure thereof |
| CN107956664A (en) * | 2017-12-05 | 2018-04-24 | 宁波合力机泵股份有限公司 | A kind of detergent slurry delivery pump fluid end |
| CN107989779A (en) * | 2017-12-27 | 2018-05-04 | 宁波合力机泵股份有限公司 | A kind of vertical plunger oil-well pump fluid end of latent well formula multi-cylinder |
| CN108194335A (en) * | 2017-12-27 | 2018-06-22 | 宁波合力机泵股份有限公司 | A kind of latent vertical plunger oil-well pump of well formula multi-cylinder |
| CN108302021A (en) * | 2018-04-12 | 2018-07-20 | 宁波合力机泵股份有限公司 | A kind of latent well formula single-cylinder vertical plunger oil-well pump |
-
2012
- 2012-08-14 CN CN 201220401348 patent/CN202746185U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767512A (en) * | 2012-08-14 | 2012-11-07 | 宁波合力机泵有限公司 | Dual-guide belt nonmetallic sealing conical valve and hydraulic cylinder body structure thereof |
| CN102767512B (en) * | 2012-08-14 | 2016-03-16 | 宁波合力机泵有限公司 | A kind of two nonmetal sealing mitre velve of guidance tape and liquid cylinder structure thereof |
| CN107956664A (en) * | 2017-12-05 | 2018-04-24 | 宁波合力机泵股份有限公司 | A kind of detergent slurry delivery pump fluid end |
| CN107989779A (en) * | 2017-12-27 | 2018-05-04 | 宁波合力机泵股份有限公司 | A kind of vertical plunger oil-well pump fluid end of latent well formula multi-cylinder |
| CN108194335A (en) * | 2017-12-27 | 2018-06-22 | 宁波合力机泵股份有限公司 | A kind of latent vertical plunger oil-well pump of well formula multi-cylinder |
| CN108302021A (en) * | 2018-04-12 | 2018-07-20 | 宁波合力机泵股份有限公司 | A kind of latent well formula single-cylinder vertical plunger oil-well pump |
| CN108302021B (en) * | 2018-04-12 | 2024-07-05 | 宁波合力机泵股份有限公司 | Submersible well type single-cylinder vertical plunger oil pump |
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